Download Print this page

Hitachi IVX Series Service Manual

page of 578

/ 578
Bookmarks

Advertisement

Quick Links

Download this manual

IVX SERIES

https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html

,

,

,

.

Service manual

Outdoor Units: 3~12 HP

Indoor Units Type:

• 4-Way Cassette

• 2-Way Cassette

• Wall

• Ceiling

• In-the-Ceiling

• Floor

• Floor Concealed

Advertisement

Need help?

Need help?

Do you have a question about the IVX Series and is the answer not in the manual?

Questions and answers

Summary of Contents for Hitachi IVX Series

Page 1 IVX SERIES https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html Service manual Outdoor Units: 3~12 HP Indoor Units Type: • 4-Way Cassette • 2-Way Cassette • Wall • Ceiling • In-the-Ceiling • Floor • Floor Concealed...
Page 2 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 3 Specifications in this manual are subject to change without notice in order that HITACHI may bring the latest innovations to their customers. Whilst every effort is made to ensure that all specifications are correct, printing errors are beyond Hitachi’s control; Hitachi cannot be held responsible for these errors.
Page 4 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 5 Contents Service Manual o n t e n t s Model codes and descriptions Units installation Piping installation Electrical wiring Control system Available optional functions Test run Troubleshooting Spare parts Servicing Main parts Field work instruction SMGB0047 rev.0 - 06/2008 Contents https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 6 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 7 Model codes and descriptions Service Manual GENERAL INDEX 1.1. RAS-3HVRNME .........................1-5 1.1.1. Transportation of outdoor unit .......................1-5 1.1.2. Center of gravity ............................1-5 1.1.3. Installation space (Initial check) ......................1-6 1.1.4. Place provision ............................1-7 1.1.5. Installation of windward and snow protection hood................1-10 1.2.
Page 8 Model codes and descriptions Service Manual 1.8. RPI(M)-(1.5~6.0)FSN2E ......................1-60 1.8.1. Factory-supplied accessories ......................1-60 1.8.2. Initial check............................1-61 1.8.3 Unit installation ............................1-61 1.8.4. Connecting field supply duct and suction air filter servicing ..............1-62 1.8.5 Air suction direction change ........................1-64 1.9. RPK-(1.5~4.0)FSN2M ......................1-65 1.9.1.
Page 9 Model codes and descriptions Service Manual 2.4.5. RPI(M)-(1.5~6.0)FSN2E / RPI-(8.0~10.0)FSNE .................2-28 2.4.6. RPK-(1.5~4.0)FSN2M .........................2-36 2.4.7. RPF(I)-(1.5~2.5)FSN2E ........................2-40 3.1. General check ..........................3-2 3.2. Electrical wiring for the outdoor unit ...................3-2 3.2.1. Electrical wiring connection for the outdoor unit ..................3-2 3.2.2. Setting the DIP switches for the outdoor unit ..................3-3 3.3.
Page 10 Model codes and descriptions Service Manual 4.1. Device control system ........................4-2 4.2. Indoor unit PCB ..........................4-4 4.2.1. Layout of the printed circuit board for RCI, RCIM, RCD ...............4-4 4.2.2. Layout of the printed circuit board for RPIM, RPI-1.5~6.0, RPC, RPF(I) ..........4-5 4.2.3.
Page 11 Model codes and descriptions Service Manual 5.4. Optional functions available through the remote control switch ..........5-23 5.4.1. Optional function setting ........................5-23 5.4.2. Optional functions of the remote control switch ..................5-28 5.5. Optional functions available through the remote control switch (PC-ARH) ......5-36 5.5.1 Alarm indication ...........................5-37 5.6.
Page 12 Model codes and descriptions Service Manual 8.1.10. RPI-(8.0~10.0)FSNE ........................... 8-11 8.1.11. RPK-1.5FSN2M...........................8-12 8.1.12. RPK-2.0FSN2M...........................8-13 8.1.13. RPK-(2.5~4.0)FSN2M .........................8-14 8.1.14. RPF-(1.5~2.5)FSN2E ..........................8-15 8.1.15. RPFI-(1.5~2.5)FSN2E .........................8-16 8.2. Outdoor units ..........................8-17 8.2.1. RAS-3HVRNME ..........................8-17 8.2.2. RAS-(4~6)HRNME ..........................8-20 8.2.3. RAS-(4~6)HVRNME..........................8-23 8.2.4. RAS-(8~12)HRNM ..........................8-26 9.1. Outdoor unit RAS-3HVRNME ....................9-6 9.1.1.
Page 13 Model codes and descriptions Service Manual 9.3.5. Removing outdoor fan motor ......................9-36 9.3.6. Removing outdoor fan motor ......................9-37 9.3.7. Removing the compressor .........................9-37 9.3.8. Removing high pressure switch and control pressure switch .............9-40 9.3.9. Opening electrical box (P-mounting plate) ..................9-41 9.3.10.
Page 14 Model codes and descriptions Service Manual 9.6.10. Removing the electronic expansion valve coil ..................9-68 9.6.11. Removing the automatic louver motor ....................9-70 9.7. RPI-(1.5~6.0)FSN2E ........................9-71 9.7.1. Removing the electrical box and electrical parts .................9-71 9.7.2. Removing the inlet air thermistor ......................9-71 9.7.3.
Page 15 Model codes and descriptions Service Manual 9.11.6. Removing the printed circuit board (PCB) ..................9-103 9.11.7. Removing the thermistors for liquid pipe and gas pipe ..............9-103 9.12. RPFI-(1.5~2.5)FSN2E ......................9-104 9.12.1. Removing the air filter ........................9-104 9.12.2. Removing the front panel ........................9-104 9.12.3.
Page 16 Model codes and descriptions Service Manual 10.9. Auto louver mechanism ......................10-16 10.9.1. RCI (4-way cassette type) .........................10-16 10.9.2. RCD (2-way cassette type) .......................10-17 10.9.3. RPC (ceiling type) ..........................10-18 10.10. Scroll compressor........................10-19 10.10.1. Reliable mechanism for low vibrating and low sound ...............10-19 10.10.2.
Page 17 Model codes and descriptions Service Manual Unit code list ¡  NOTE: Please check by model name your air conditioner type, its abbreviation and reference number MODEL CODIFICATION in this technical catalogue. FSN(2)(E) INDOOR UNITS 4-Way Cassette 4-Way Mini Cassette 2-Way Cassette Ceiling Unit...
Page 18 Model codes and descriptions Service Manual FSN(2)(E/M) INDOOR UNITS Floor Concealed Duct Wall Floor Enclosure Enclosure Unit Code Unit Code Unit Code Unit Code Unit Code 60277942 7E450002 7E460002 1.5FSN2E RPIM 1.5FSN2E 1.5FSN2M 1.5FSN2E RPFI 1.5FSN2E 7E420002 7E430002 60277943 7E450003 7E460003 2.0FSN2E 2.0FSN2M...
Page 19 Model codes and descriptions Service Manual OUTDOOR UNITS (IVX) HVRNME OUTDOOR UNITS HRNM(E) OUTDOOR UNITS Unit Code Unit Code RAS-3HVRNME 7E300005 RAS-4HVRNME 7E300007 RAS-4HRNME 7E300107 RAS-5HVRNME 7E300008 RAS-5HRNME 7E300108 RAS-6HVRNME 7E300009 RAS-6HRNME 7E300109 RAS-8HRNM 60278972 RAS-10HRNM 60278973 RAS-12HRNM 60278974 RAS-6 H(V)RN(M)(E) E: Made in Europe Unit type R410A...
Page 20 Model codes and descriptions Service Manual COMPLEMENTARY SYSTEMS Accessory Name Code Figure KPI-502E1E Total heat exchanger 70600001 KPI-502E1E Total heat exchanger 70600002 KPI-1002E1E Total heat exchanger 70600003 KPI-1502E1E Total heat exchanger 70600004 KPI-2002E1E Total heat exchanger 70600005 KPI-3002H1E Total heat exchanger 70600107 EF-5GE Econofresh kit...
Page 21 Model codes and descriptions Service Manual Accessory Name Code Figure Wall-mounted remote control switch PC-ART 70510000 with timer PC-LH3A Wireless remote control switch 60291056 PC-ARH Optional remote controller 60291486 Receiver kit PC-ALH 60291464 (for RCI-FSN2E -on the panel-) Receiver kit PC-ALHD 60291467 (for RCD-FSN2·...
Page 22 Model codes and descriptions Service Manual Accessory Name Code Figure Lonwork BMS Interface HARC-BXE (A) 60290874 (7 inputs up to 6 units) Lonwork BMS Interface HARC-BXE (B) 60290875 (4 inputs up to 32 units) Integration with installations with intelligent control HARC MOD BUS (Building Management System) 70513200...
Page 23 Model codes and descriptions Service Manual Accessory Name Code Figure Air panel P-N23WAM 60197160 for RCIM-FSN2 Air panel P-N23DWA 60291574 for RCD-FSN2 Air panel P-N46DWA 60291575 for RCD-FSN2 B-23H4 Adapter for deodorant filter 60199790 F-23L4-K Antibacteria filter 60199791 F-23L4-D Deodorant filter 60199793 F-46L4-D Deodorant filter...
Page 24 Model codes and descriptions Service Manual Accessory Name Code Figure TE-03N Branch pipe 70800007 TE-04N Branch pipe 70800008 TE-05N Branch pipe 70800009 TE-08N Branch pipe 70800003 TE-10N Branch pipe 70800004 TRE-06N Branch pipe 70800005 TRE-810N Branch pipe 70800010 QE-810N Branch pipe 70800006 E-162SN Branch pipe...
Page 25 Model codes and descriptions Service Manual Accessory Name Code Figure ER-500 70550001 ER-750 70550002 Energy exchanger for KPI ER-1000 70550003 (energy recovery) ER-1500 70550004 ER-2000 70550005 HR-500 70550101 HR-750 70550102 HR-1000 70550103 Energy exchanger for KPI (heat recovery) HR-1500 70550104 HR-2000 70550105 HR-2900...
Page 26 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 27 Units installation Service Manual UNITS INSTAllATIoN This chapter provides information about the procedures you must follow to install the IVX H(V)RNME and HRNM series outdoor units and the complete range of Hitachi indoor units. CoNTENTS 1.1. RAS-3HVRNME .........................1-5 1.1.1. Transportation of outdoor unit .......................1-5 1.1.2.
Page 28 Units installation Service Manual 1.7. RPC-(2.0~6.0)FSN2E ......................1-56 1.7.1. Factory-supplied accessories ......................1-56 1.7.2. Initial check............................1-57 1.7.3. Installation ............................1-57 1.8. RPI(M)-(1.5~6.0)FSN2E ......................1-60 1.8.1. Factory-supplied accessories ......................1-60 1.8.2. Initial check............................1-61 1.8.3 Unit installation ............................1-61 1.8.4. Connecting field supply duct and suction air filter servicing ..............1-62 1.8.5 Air suction direction change ........................1-64 1.9.
Page 29 Units installation Service Manual  warning - I nstall the outdoor unit with sufficient clearance around it for operation and maintenance as shown in the next pages. - Install the outdoor unit where good ventilation is available. - D o not install the outdoor unit where exists a high level of oil mist, salty air or sulphurous atmosphere. - I nstall the outdoor unit as far as practical (being at least 3 meters) from electromagnetic wave radiator, such as medical equipment. - K eep clearance between units of more than 50 mm, and avoid obstacles that could hamper air intake, when installing more than one unit together. - I nstall the outdoor unit in the shade or not exposed to direct sunshine or direct radiation from high temperature heat source. - Do not install the outdoor unit in a place where a seasonal wind directly blows into the outdoor fan. - F or cleaning, use non-inflammable and nontoxic cleaning liquid. Use of inflammable agent may cause explosion or fire. - W ork with sufficient ventilation, for working in an enclosed space could cause oxygen deficiency. Toxic gas may be produced when cleaning agent is heated to high temperature by, e.g., being exposed to fire.
Page 30 Units installation Service Manual  warning - Check and ensure that the accessories are packed with the indoor unit. - Do not install the indoor units outdoors. If installed outdoors, an electric hazard or electric leakage will occur. - C onsider the air distribution from each indoor unit to the space of the room, and select a suitable location so that uniform air temperature in the room can be obtained. It is recommended that the indoor units be installed 2.3 to 3 meters from the floor level. If the unit is installed higher than 3 meters, it is also recommended to use a fan in order to obtain an uniform air temperature in the room. - Avoid obstacles which may hamper the air intake or the air discharge flow. - Children must be supervised to ensure that they do not play with the electrical appliances. - Before obtaining access to terminals, all supply circuits bust be disconnected.  warning - P ay attention to the following points when the indoor units are installed in a hospital or other places where there are electronic waves from medical equipment and similar. - D o not install the indoor units where electromagnetic wave is directly radiated to the electrical box, remote control cable or remote control switch. - I nstall the indoor units and components as far as practical or at least 3 meters from the electromagnetic wave radiator. - P repare a steel box and install the remote control switch in it. Prepare a steel conduit tube and wire the remote control cable in it. Then connect the ground wire with the box and tube.
Page 31 Units installation Service Manual 1.1. RAS-3HVRNME 1.1.1. Transportation of outdoor unit  warning - D o not put any foreign material into the outdoor unit and check to ensure that none exists in the outdoor unit before the installation and test run. Otherwise, a fire or failure will occur. • Hanging Method When hanging the unit, ensure the balance of the unit, check safety and lift it up smoothly. Do not remove any packing materials and hang the unit under packing condition with two ropes, as shown in the figure.
Page 32 Units installation Service Manual Center of gravity Measures (mm) 1.1.3. Installation space (Initial check) a) In case of front side and either of the sides are open b) In case that surrounding wall exist (single unit) (single unit) c) In case that upper side obstacles exist (single unit) 0 <...
Page 33 Units installation Service Manual g) Horizontal (multiple units) h) Vertical (multiple units) 0 < L 1/2H A 200 1/2H < L H A 350  note - All units are in (mm). - Do not stack more than two units in height. - Close gap (*) to avoid recirculating discharge air flow. 1.1.4. Place provision • Concrete Foundation Foundation could be on flat and it is recommended to be 100-300 mm higher than ground level. Install a drainage around foundation for smooth drain When installing the outdoor unit, fix it by M10 anchor bolts.
Page 34 Units installation Service Manual The whole base of the outdoor unit should be installed on a foundation. When using vibration-proof material, it should also be positioned in the same place. When installing the outdoor unit on a fieldsupplied frame, use metal plates to adjust the frame width for stable installation as shown in the figure below.
Page 35 Units installation Service Manual • Suspended unit 1. Suspend the unit as the drawing indicates. Wall bracket 2. Ensure that wall can resist the outdoor unit weight indicated in specification label plate. 3. It is recommended to select each Anchor bolts foot support to bear the full weight of the unit (in order to consider (*) Field supplied...
Page 36 Units installation Service Manual 1.1.5. Installation of windward and snow protection hood. • Air flow guide, wind guard and snow protection hood optional parts Model Air flow guide AG-335A Wind guard WSP-335A Air outlet ASG-NP335F Air inlet of rear side ASG-NP335B Stainless Air inlet of side face ASG-NP335L plate Air outlet ASG-NP335F...
Page 37 Units installation Service Manual Service space (In case of upward air discharge) In case of right and left sides air discharge, enough Two windbreak covers installation space for air discharge is required. The downward air discharge is also available. In Outdoor unit M5 fixing screw x4 such case, install the base under the unit to secure...
Page 38 Units installation Service Manual Two windguard covers installation Service space Both sides of the outdoor unit should be Outdoor unit Air discharge grille M5 fixing screw x4 open. (Accessories) No obstacles should be placed in the air discharge side. Wind guard Air discharge grille Outdoor unit Wind guard...
Page 39 Units installation Service Manual Left suction hood Part name Qty. Fixing hole x 2 Right side   plate Left side  plate Front panel    (Upside) Enlarged view of A (Fixing hole) Front panel  (Downside)  Fixing screw (Accessories)  A ttaching example of snow protection hood...
Page 40 Units installation Service Manual Specifications of snow protection hood Product name Air discharge hood Rear suction hood left suction hood ASG- Model ASG-NP335F ASG-NP335B ASG-NP335BS ASG-NP335L ASG-NP335LS NP335FS Quantity 1 per unit 1 per unit Bonderized Bonderized Bonderized Stainless Stainless Stainless Material steel sheet...
Page 41 Units installation Service Manual 1.2. RAS-(4~6)H(V)RNME 1.2.1. Transportation of outdoor unit  warning - D o not put any foreign material into the outdoor unit and check to ensure that none exists in the outdoor unit before the installation and test run. Otherwise, a fire or failure will occur. • Hanging Method When hanging the unit, ensure a balance of the unit, check safety and lift up smoothly. Do not remove any packing materials and hang the unit under packing condition with two ropes, as shown in the figure.
Page 42 Units installation Service Manual Center of gravity Measures (mm) 1.2.3. Installation space (Initial check) a) In case of front side and either of the sides are open b) In case that surrounding wall exist (single unit) (single unit) c) In case that upper side obstacles exist (single unit) 0 <...
Page 43 Units installation Service Manual e) In case of front side and either of the sides are open f) In case that surrounding wall exist (serial unit) (serial unit) 0 < L 1/2H A 200 1/2H < L H A 350 g) Horizontal (multiple units) h) Vertical (multiple units) 0 <...
Page 44 Units installation Service Manual  Outdoor unit Cut this portion of bolt If not, it’s difficult to  remove Service cover  Mortar hole (Ø100 x Depth 150)  Anchor bolt M10 (Ø12.5 Hole)  Drainage (Wide 100 x Depth 150) ...
Page 45 Units installation Service Manual • Example of fixing outdoor unit by anchor bolts Cut this portion when this type of anchor bolt is used. If not done, it will be dificult to remove the service cover Anchor bolt Concrete • Fix Unit to the wall 1. Fix the unit onto the wall as the figure indicates.
Page 46 Units installation Service Manual • Installing location where the unit will be exposed to strong wind. Follow the instructions below to install on the rooftop or a location without surrounding buildings, where strong wind is expected against the product. 1. Choose a location where the outlet or inlet side of the product will not be exposed to strong wind.
Page 47 Units installation Service Manual • Air flow guide Specifications Model AG-335A View from A Quantity 2 per unit Upward (downward), left & Mounting dimension Air discharge direction right Weather proof polypropylene Material resin Color Gray Weight 1.9 kg Fixing screw x 4 [M5 (SUS) Air flow guide Accessories x 20]...
Page 48 Units installation Service Manual • Wind guard Specifications Model WSP-335A Quantity 2 per unit Galvanized sheet metal + baked Material painting Color Gray (1.oY8.5/0.5) Weight 5.5 kg (Mounting dimension) Fixing screw x 4 [M5 (SUS) x 20] Air flow Accessories Installation manual Air flow Air flow “Guard net”, “Air flow guide”...
Page 49 Units installation Service Manual • Snow protection hood Air discharge hood Part name Qty.  Right side   plate Left side  plate Front panel  Fixing screw Stay  (Accessories) Hole for safety wire rope to prevent  overturning  Rear suction hood Part name Qty.
Page 50 Units installation Service Manual  A ttaching example of snow protection hood Fixing screw Left suction (Accessories) hood Outdoor unit Air discharge Fixing screw hood (Accessories) Fixing screw Air discharge (Accessories) grille Front side Wire rope discharge hood (Optional. For overturning protection) Rear suction hood...
Page 51 Units installation Service Manual 1.3. RAS-(8~12)HRNM 1.3.1. Transportation of outdoor unit  warning - D o not put any foreign material into the outdoor unit and check to ensure that none exists in the outdoor unit before the installation and test run. Otherwise, a fire or failure will occur. • Hanging Method When hanging the unit, ensure a balance of the unit, check safety and lift up smoothly. Do not remove any packing materials and hang the unit under packing condition with two ropes, as shown in the figure.
Page 52 Units installation Service Manual Center of gravity Measures (mm) 1.3.3 Factory-supplied accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Quantity Accessory Appearance RAS-8HRNM RAS-10HRNM RAS-12HRNM Gasket Pipe flange for refrigerant gas piping Ring core Cable tie Compressed sheet...
Page 53 Units installation Service Manual 1.3.4. Installation space (Initial check) Single installation Around sides are open Around sides are open with obstacles above Around sides are closed Around sides are open with obstacles above Multiple installation Around sides are open Multi-Row Around sides are open with obstacles above SMGB0047 rev.0 - 06/2008 1-27...
Page 54 Units installation Service Manual  note - All units are in mm. - Do not stack more than two units in height. - If L is larger than H, mount the units on a base so that H is equal or greater than L. H: Unit height (1650 mm) + base concrete height 0 < L ≤ 1/2 H 600 or more 300 or more 1/2 H < L ≤ H - In this situation, ensure that the base is closed and does not allow the airflow to short circuit. - In each case, install the outdoor unit so that the discharge flow is not short-circuited. - When the installation dimension results the one marked with an (*) , mount the air flow guide. 1.3.5. Place provision • Concrete Foundation Foundation could be on flat and it is recommended to be 100-300 mm higher than ground level.
Page 55 Units installation Service Manual Recommended metal plate size (Field-Supplied) Material: Hot-rolled mild steel Plate (SPHC) plate thickness: 4.5 T The whole base of the outdoor unit should be installed on a foundation. When using vibration-proof material, it should also be positioned in the same place. When installing the outdoor unit on a fieldsupplied frame, use metal plates to adjust the frame width for stable installation as shown in the figure below.
Page 56 Units installation Service Manual • Suspended unit 1. Suspend the unit as the drawing indicates. 2. Ensure that wall can resist the Wall bracket outdoor unit weight indicated in specification label plate. 3. It is recommended to select each foot support to bear the full weight Anchor bolts of the unit (in order to consider stress fatigue applied when unit is...
Page 57 Units installation Service Manual 1.3.6. Installation of windward and snow protection hood. • Air flow guide, wind guard and snow protection hood optional parts Model Air flow guide AG-335A X 2 8 to Wind guard WSP-335A X 2 Air outlet ASG-NP335F X 2 Air inlet of rear side ASG-NP335B Stainless Air inlet of side face...
Page 58 Units installation Service Manual Two windbreak covers installation Service space (In case of upward air discharge) In case of right and left sides air discharge, enough Outdoor unit space for air discharge is required. M5 fixing screw x4 (Accessories) The downward air discharge is also available. In Air discharge grille such case, install the base under the unit to secure Air flow...
Page 59 Units installation Service Manual Two windguard covers installation Service space Both sides of the outdoor unit should be Outdoor unit Air discharge grille M5 fixing screw x4 open. (Accessories) No obstacles should be placed in the air discharge side. Wind guard Wind guard Outdoor unit Wind guard...
Page 60 Units installation Service Manual Left suction hood Part name Qty. Fixing hole x 2 Right side   plate Left side  plate  Front panel   (Upside) Enlarged view of A (Fixing hole) Front panel   (Downside) Fixing screw (Accessories)  A ttaching example of snow protection hood...
Page 61 Units installation Service Manual Specifications of snow protection hood Product name Air discharge hood Rear suction hood left suction hood ASG- Model ASG-NP335F ASG-NP335FS ASG-NP335B ASG-NP335BS ASG-NP335L NP335LS Quantity 2 per unit 1 per unit Bonderized Bonderized Bonderized Stainless Stainless Stainless Material steel sheet...
Page 62 Units installation Service Manual 1.4. RCI-(1.5~6.0)FSN2E 1.4.1. Factory-supplied accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Qty. Purpose For adjusting space of Paper pattern false ceiling opening and position of the unit. (Cut out from carton Scale board). For fitting paper Cross recessed head screws pattern Washer with insulation...
Page 63 Units installation Service Manual Piping connection Service Piping access connection Service door access door Drain piping Drain piping connection connection  caution - The minimum distance between the wall and panel edge must be 1500 mm to prevent short-circuiting. Ensure that the ceiling surface is flat for the air panel installation work. Check down slope pitch of drain piping to be following the specifications indicated in chapter Piping Installation. Check that the space between ceiling and false ceiling is enough as indicated below.
Page 64 Units installation Service Manual 1.4.3. Installation • Mount suspension bolts Mount suspension bolts using M10 (W3/8) as size, as shown below. Wooden Bar Insert (100 to (60mm to 150 kg) 90mm square) Concrete Anchor bolt Steel beam (W3/8 or M10) Anchor bolt (W3/8 Steel or M10) Wooden Beam Concrete Beam Steel Beam Wooden Beam • Mounting the indoor unit...
Page 65 Units installation Service Manual Check the level of the drain pan with a water level to avoid incorrect operation of the drain discharge mechanism in the indoor unit.  note - I f a false ceiling has already been installed, complete all piping and wiring work inside the ceiling before hooking-up the indoor unit. - U se the factory-supplied nuts, flat washers and spring washers to secure the indoor unit (4 pieces each). • Adjusting the space between indoor units and false ceiling opening Adjust the indoor unit to the correct position, using the supplied pattern for installation.
Page 66 Units installation Service Manual Tighten the nuts of the suspension brackets after adjustment is completed. Apply lock-tight paint to the bolts and nuts in order to prevent them from loosening. If not done, abnormal noises or sounds may occur due to mechanical vibrations, and the indoor unit may come loose.
Page 67 Units installation Service Manual Take up the grille keeping it inclined   45º (Correct)   Air intake grille  Air filter   Wrong   Air panel   Ceiling    • Installing the air panel L-type hook L-type hook L-type hook Fixing nail...
Page 68 Units installation Service Manual Indoor unit undersurface  Fix screw until this end touches it   Fixing plate (Indoor unit side)    Sealing gasket  Long screw  Fixing plate (Air panel side)     ...
Page 69 Units installation Service Manual  Readjust the height of the indoor unit if any gap is visible. Use long scews and nuts to readjust as shown in the next point. No gap  When the panel is installed, you can adjust the final indoor unit height by using the wrench through the corner pocket. Wrench ...
Page 70 Units installation Service Manual • Wiring connection for the air panel  caution - B efore inserting connectors, firstly turn OFF the power source. If the connectors are connected without turning OFF the power source, the auto-swing louver cannot function. 1. The following connector is used with the air panel (view from lower surface of air panel without air intake grille) Connector for auto Electrical control swing motor (Low voltage, 7 pin, red) 2.
Page 71 Units installation Service Manual 1.5. RCIM-(1.5~2.0)FSN2 1.5.1. Factory-supplied accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Qty. Purpose Checking scale (Cut out from carton board) Flat washer with insulation For unit installation (M10) Washer (M10) Drain hose...
Page 72 Units installation Service Manual Piping connection Service Piping access connection Service door access door Drain piping Drain piping connection connection  caution - The minimum distance between the wall and panel edge must be 1500 mm to prevent short-circuiting. 3. Ensure that the ceiling surface is flat for the air panel installation work. 4. Check down slope pitch of drain piping tin order to follow the specifications indicated in chapter 2, drain piping. 5.
Page 73 Units installation Service Manual 1.5.3. Installation • Mount suspension bolts Mount suspension bolts using M10 (W3/8) as size, as shown below. Wooden Bar Insert (100 to (60mm to 150 kg) 90mm square) Concrete Anchor bolt Steel beam (W3/8 or M10) Anchor bolt (W3/8 Steel or M10) Wooden Beam...
Page 74 Units installation Service Manual  note - I f a false ceiling has already been installed, complete all piping and wiring work inside the ceiling before hooking-up the indoor unit. - U se the factory-supplied nuts, flat washers and spring washers to secure the indoor unit (4 pieces each). • Adjusting the space between indoor units and false ceiling opening Adjust the indoor unit to the correct position using the supplied pattern for installation. Indoor unit  For ceiling already completed with panels. Indoor unit ...
Page 75 Units installation Service Manual Accessory Appearance Qty. Purpose Long screw (M6x50) For fixing panel • Location of suspension brackets Check to ensure that the suspension brackets of the indoor unit are located approximatately 90 mm higher than the false ceiling. (mm) • Removing the air intake grille from the air panel Let the air intake grille open to an angle of approximately 45º from the surface of the air panel as shown below. Lift the grille keeping it inclined.
Page 76 Units installation Service Manual 1. Fix the long screw to the fixing plate temporary. 2. Set the corner of the refrigerant connection portion of the indoor unit to the position indicated as “PIPE SIDE”. 3. Hook the air panel onto the long screw (2 positions) so that temporary positioning and adjusting is available. Long screw Long...
Page 77 Units installation Service Manual 1.6. RCD-(1.5~5.0)FSN2 1.6.1. Factory-supplied accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Qty. Purpose Paper pattern (carton board) For adjusting space of false ceiling opening and position of the unit Level scaler (taken out from carton board) Cross recesed head screws For fitting paper...
Page 78 Units installation Service Manual Separated installation Closed installation Service access door Service access door Piping Piping connection connection Distance from wall side Piping connection  caution - The minimum distance between the wall and panel edge must be 1500 mm to prevent short-circuiting. 3. Check that the space between ceiling and false ceiling is enough as indicated below. 4.
Page 79 Units installation Service Manual 1.6.3. Installation • Mount suspension bolts Mount suspension bolts using M10 (W3/8) as size, as shown below. Wooden Bar Insert (100 to (60mm to 150 kg) 90mm square) Concrete Anchor bolt Steel beam (W3/8 or M10) Anchor bolt (W3/8 Steel or M10) Wooden Beam...
Page 80 Units installation Service Manual  note - I f a false ceiling has already been installed, complete all piping and wiring work inside the ceiling before hooking-up the indoor unit. - U se the factory-supplied nuts, flat washers and spring washers to secure the indoor unit (4 pieces each). • Adjusting the space between indoor units and false ceiling opening Adjust the indoor unit to the correct position while checking with the installation pattern and gauge (factory supplied), as shown below.  For ceiling already completed with panels. Indoor unit ...
Page 81 Units installation Service Manual - C heck the level of the unit using a water level or transparent plastic tube containing water, as shown below, to avoid incorrect operation of the drain discharge mechanism in the indoor unit. The drain piping side of the indoor unit must be approximately 5 mm lower than the other sides. Adjust the indoor unit to the correct position while ckecking with the checking scales (factory-supplied) Drain pipe Bracket for panel Adjust 4 corners of the unit using clear vinyl tube with water inside Clear vinyl tube 1.6.4. Air panel installation (P-N23DWA, P-N46DWA) ...
Page 82 Units installation Service Manual Wireless receiver part Air discharge Suspension bracket Ceiling Air discharge • Removing the air intake grille from the air panel Let the air intake grille open to an angle of approximately 40º from the surface of the air panel as shown below. Lift the grille keeping it inclined.
Page 83 Units installation Service Manual Indoor unit Long screw (A) x4 (M6x50) Long screw (B) x4 (M6x30), only for P-G46  caution - T o protect the panel from being damaged, the long screws for securing the air panel have stoppers so that tightening is stopped at the setting position. If the air panel does not reach the surface of the ceiling or air leakage from the contacting surface occurs, readjust the installation height level of the indoor unit.  note - For size and position of piping connection, see chapter 2.  caution - Do not turn or force the air louver by hand. If moved, the louver mechanism will be damaged. louver • Wiring connection for air panel  caution - B efore connecting connectors, firstly turn power source OFF. If the connectors are connected without turning the power source OFF, the auto-swing louver cannot function.
Page 84 Units installation Service Manual The following connector is used with the air panel (view from lower surface of air panel without air intake grille) Outlet for electrical wiring Hook wires Electrical box of indoor unit Without air intake grille Insert the connectors as shown below (view of the electrical box) Electical box of indoor unit...
Page 85 Units installation Service Manual 1.7. RPC-(2.0~6.0)FSN2E 1.7.1. Factory-supplied accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Qty. Purpose Suspension bracket For unit suspesion Fixing screw For sealing plate Drain hose For drain hose connection Wire clamp Insulation material For drain pipe...
Page 86 Units installation Service Manual In the installation pattern you can find information regarding to : Pitch of sling bolt for case (a) and case (b) showed below. Hole positions of refrigerant piping. Hole positions of drain piping. Suspension bracket has the following two possible positions: Case (a) Case (b) Same in both cases...
Page 87 Units installation Service Manual • Mounting the indoor unit Before lifting or moving the indoor unit, first remove the resin side covers in order to avoid any damage to the resin side covers. Follow the indicated procedure: Initially, screw the nuts and put the washers in place for all the bolts .Then, hook two suspension brackets to the nut and washer of each suspension bolt, starting from one side.
Page 88 Units installation Service Manual • For semi-concealed installation 1. Open a hole in the false ceiling with the according mesures: ≥300 ≥A ≥8 ≥50 Models ≥300 RPC-2.0 1694 RPC-2.5~4.0 1914 RPC-5.0-6.0 2174 ≥605 2. When installing the indoor unit as shown in the following figure, insulate the top part of the cabinet which will be concealed in the ceiling, because dew may occur under cooling operation.
Page 89 Units installation Service Manual 1.8. RPI(M)-(1.5~6.0)FSN2E 1.8.1. Factory-supplied accessories (Models: RPI-1.5 FSN2E) (Models: RPIM-1.5 FSN2E) (Models: RPI-2.0~6.0 FSN2E) (Models: RPI-8~10 FSNE) Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. - In case of 8~10 HP, the pipe reduction for refrigerant pipe connection must be field supplied. Accessory Appearance Qty.
Page 90 Units installation Service Manual From top Rear side Rear side From top RPI 8.0-10.0 RPIM 1.5 1.8.3 Unit installation • Mounting the suspension bolts Using the aforementioned dimension, select the final location and installation direction of the indoor unit, paying careful attention to the space for the piping, wiring and maintenance Mount the suspension bolts as shown: Wooden Bar Insert (100 to (60mm to...
Page 91 Units installation Service Manual  note - A fter hanging the machine and adjustment is completed, use the upper nut and washer of each bolt to thight and secure the hole as shown in the photo above. - Special plastic paint must be applied to the bolts and nuts in order to prevent them from loosening. • Drain pan level 1. Make sure that the foundation is flat, taking into account the maximum foundation gradient. ≈ 5mm Condensate drain connection 2. The unit should be installed so that one side of the unit is slightly lower than the other side (approximately 5 mm), in order to avoid the incorrect position of the drain discharge, so that water can flow outside easily.
Page 92 Units installation Service Manual Inlet air   Outlet air  Standard air filter (factory-supplied)   Optional air filter (Field-supplied or adapted  factory-supplied one) Insulated duct (Installed on the outer side of  the flanges) Flexible duct installation (Rubber or textil ...
Page 93 Units installation Service Manual  Attention: for RPI-(8.0-10.0)FSNE The air filter (3 panels) are fixed by frames. Pull up the air filter and remove them as shown in the figure. Air filter (3 panels) Air filter guides 1.8.5 Air suction direction change For RPI-(2.0~6.0)FSN2E and RPIM units, air suction direction could be modified by changing back cover direction as shown in the diagram.
Page 94 Units installation Service Manual 1.9. RPK-(1.5~4.0)FSN2M 1.9.1. Factory supplied-accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance 1.0-1.5 2.5~4.0 Purpose Mounting bracket For mounting indoor unit Screw (Ø4.1x25mm) For mounting bracket Screw (Ø4.1x40mm) Insulation pipe For piping insulation Insulation Harness with connector Cable for PC-P2HTE...
Page 95 Units installation Service Manual  note - C onsider the air distribution from the indoor unit to the space of the room, and select a suitable location so that uniform air temperature in the room can be obtained. 1.9.3. Unit installation 1. Mounting bracket onto wall When the mounting bracket is directly attached to a wood wall or a concrete wall, check that the wall is strong enough to support a weight of 200kg.
Page 96 Units installation Service Manual  RPK 2.5~4.0 Mounting bracket Pping Screws for connections mounting bracket 3. Mounting on a concrete wall or a concrete block wall Attach the mounting bracket to the wall with anchor bolts as shown below. Nº Mounting Plug size bracket...
Page 97 Units installation Service Manual  caution - C heck that the unit is completely hooked onto the mounting bracket. If not, it could drop from the bracket. • Removing the front panel  RPK 1.5 In order to connect the refrigerant piping, wiring and to check drain water flow, removing the right side cover is needed. Perform this work according to the following instructions. Be careful and do not scratch the resin components. 1.
Page 98 Units installation Service Manual Front panel Body  RPK 2.0 In order to connect the refrigerant piping, wiring and to check drain water flow, removing the right side cover is needed. Perform this work according to the following instructions. Be careful and do not scratch the resin components. 1.
Page 99 Units installation Service Manual  RPK 2.5~4.0 In order to connect the refrigerant piping, wiring and to check drain water flow, removing the right side cover is needed Perform this work according to the following instructions. Be careful and do not scratch the resin components. 1.
Page 100 Units installation Service Manual 1.9.4. Dimension of the mounting bracket  RPK-1.5 Contour of the unit Mounting bracket  RPK-2.0  RPK-2.5~4.0 Contour of the unit Mounting bracket Ø80 Ø80 SMGB0047 rev.0 - 06/2008 1-74 RPK-(1.5~4.0)FSN2M https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 101 Units installation Service Manual 1.10. RPF(I)-(1.5~2.5)FSN2E 1.10.1. Factory supplied-accessories Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Qty. Purpose For adjusting the flat Adjustment bolt for installation level of the unit Screw PC-P2HTE 1.10.2. Initial check Install the indoor unit with a proper clarance around it for operation and maintenance a shown in servie access panel. • RPF Wall Wall...
Page 102 Units installation Service Manual Provide a space so that air can flow Ceiling smoothly. Front air outlet Wall Wall Piping space Service space for More than More than electrical Service access panel: provide a service access door or panel as shown beside.
Page 103 Units installation Service Manual Model RPF-1.0 1045 RPFI-1-5 1170 RPFI-1.0 RPFI-1.5 RPF-2.0 1420 1129 1107 RPF-2.5 RPFI-2.0 1234 1129 1107 RPFI-2.5 (units in mm) 2. Adjust the flat level of the unit by loosening or tightening the bolts for installation that are attached in the unit. Remember to make the drain pipe side lower than the opposite side for smooth drain.
Page 104 Units installation Service Manual  caution - T he optional air outlet grille of the RPFI unit cannot be used in a highly humid place like a kitchen or bathroom, because condensation may occur on the grille surface. • Air outlet direction change (RPFI) In case of changing the RPFI units air outlet direction from upward to front, follow the procedures below: 1. Remove the fixing screws of the air outlet flange and the upper front cover. Then, remove the flange and the cover. 2.
Page 105 Units installation Service Manual 1.11. CoMPlEMENTARY SYSTEMS 1.11.1. KPI. Energy recovery ventilation units. Make sure that the following accessories are packed with the unit.  note - If any of these accessories are not packed with the unit, please contact your dealer. Accessory Appearance Purpose 4 (double-flanges at For duct Flange supply air (SA) and connecting exhaust air (EA) sides Screw (M4x8) For flange Rubber duct joint connecting Vibration absorbing rubber,...
Page 106 Units installation Service Manual  KPI-(3002)H1E Service space Electrical control box Service access panel Avoid obstacles which may hamper the air intake or the air discharge flow. Select a position for introducing the outside air where no exhaust or combustion gases will be sucked into the unit. Also the unit must not be covered by snow.
Page 107 Units installation Service Manual Indoor Air Indoor Air Indoor Air outdoor Air Relative Absolute Temperature Temperature Humidity Humidity (DB) (DB) (kg/kg) 0ºC 30ºC 0,0125 -5ºC 30ºC 0,0105 -10ºC 30ºC 0,0090 • Mounting the unit 1. Preparing the sling bolts. Anchor Bolt (M10 or M12) Washer Rubber isolator 2.
Page 108 Units installation Service Manual • Attaching the duct connecting flanges Use the screws supplied to secure the duct connecting flanges to the unit.  caution - B efore attaching the duct connecting flanges, check that no foreign matter (scraps of paper, vinyl) has found its way inside to lossnay unit. Attach the duct connecting flanges in every duct connection. • Connecting supply duct The supply duct should be connected with the unit through flexible duct, in order to avoid abnormal sounds and vibration. The unit is equipped with a pre-drilled duct flange for the supply duct connection.
Page 109 Units installation Service Manual Extremely sharp bends Multiple bends Bends right next to the Extreme reduction in outlet the diameter of the connected ducts  Example for installation Deep hood (to prevent (Supply Anchor bolt (to the rainwaterfrom air grille) seeping in) provided by user) EA (Exhaust Air Outlet) (Outdoor OA (Outdoor Air intake)
Page 110 Units installation Service Manual • Initial check Before performing the Econo-fresh kit installation, refer to the indoor unit’s Installation and operation manual. Install the indoor unit with a proper clearance around it for operation and maintenance working space, as shown below. Sling bolt (M8 to M10) Washer ...
Page 111 Units installation Service Manual 1.12. oPTIoNAl ACCESSoRIES 1.12.1. Fresh air intake (oACI-232 or PD-75) 1.12.1.1. Connection position of fresh air intake duct ¡ Intaking of fresh air can be performed by connecting the air intake duct (ref. P-75 for RCI, RCIM) in the position shown in the next drawing.
Page 112 Units installation Service Manual Attach an air filter on the air suction side of the fresh-air intake duct at a position with easy servicing. Insulate the duct and the duct connection portion with only non-combustible materials. Duct (To be made of only ...
Page 113 Units installation Service Manual 1.12.1.2. T-tube connecting kit (TKCI-232) ¡ The T-tube connecting kit is intended to make easy the connections between the fresh air intake and the connection duct. Below there are shown the two basic pieces of the kit. Therefore, T-tube connecting kit can be installed only when both the fresh air intake kit (optional) and filter box (optional) are used.
Page 114 Units installation Service Manual 1.12.2. Branch discharge 1.12.2.1. Branch flange (PDF 23C3; PDF 46C3) ¡ If there are obstacles inside a room, such as partitions, and they prevent air from circulating well, you can install branched ducts to provide uniform air temperature. You must install the required return air grilles, depending on the amount of return air.
Page 115 Units installation Service Manual 2. Perform sufficient insulation treatment for the attachment portion between the connection flange and the indoor unit main body as well as the attachment portion between the duct and the connection flange. Use a 3-way outlet part set (Optional parts) and completely block the air outlet of the branched duct side of the panel.
Page 116 Units installation Service Manual Only one of the 4 outlets can be blocked as shown below. Blockable outlet In case of . blocking this outlet, change the position of the air outlet Refrigerant piping temperature thermistor to outlet , referring to chapter ...
Page 117 Units installation Service Manual Suction grille   Air filter (Optional)   Long life air filter   Filter box   Ceiling  Air panel (Optional)   Suction grille    Model RCI - 1.0~2.5 RCI - 3.0~6.0 1.12.3.2.
Page 118 Units installation Service Manual  Specifications: Item For 4-way cassette type RCI - 1.0~6.0 Dust Collection Efficiency (%) 50 (Gravimetric Method) Air Flow (m3/min) 37.0 Initial Pressure Loss Pa (mmAq) 17.7 (1.8) End Pressure Loss Pa (mmAq) 44.1 (4.5) Color Filter/Frame/Packing White / Brown / - Life Period 4 Years (with maintenance per 1250 hours)
Page 119 Units installation Service Manual  Specifications: Item RCI - 1.0~2.5 F-23l4-D RCI - 3.0~6.0 F46-l4D Dust Collection Efficiency (%) 50 (Gravimetric Method) Air Flow (m3/min) 20.0 37.0 16.7 (1.7) Initial Pressure Loss Pa (mmAq) 15.7 (1.6) 33.3 (3.4) End Pressure Loss Pa (mmAq) 42.2 (4.3) Life Period 3 Years (with maintenance per 3~6 months)
Page 120 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 121 Piping installation Service Manual PIPING INSTAllATIoN This chapter provides information about the procedures you must follow to perform piping work connections for outdoor and indoor complete range of Hitachi’s units. CoNTENTS 2.1 General notes ..........................2-2 2.2. Piping work connection considerations ..................2-3 2.2.1.
Page 122 Piping installation Service Manual 2.1 GENERAl NoTES  caution - D o not install the drain-pipe in an up-slope position. Installing it like this, the drain water cannot be evacuated and will flow back to the unit, causing a possible leakage when the operation is stopped. Allways install the unit higher than the exit of the pipe. Making this so, the water will flow easily to the outside. INCoRRECT Incorrect: rising part Incorrect: up slope - Do not connect the drain pipe with the sanitary piping, the sewage piping or any other drainage piping. - W hen the common drain piping is connected with other indoor units, the connected position of each indoor unit must be higher than the position of the common drain piping. The pipe section of the common drain pipe must be wide enough according to the unit size and the unit number. Drain piping connection pitch of 4% (1/25) to 1% (1/100) Common drain piping - T he drain pipe will require insulation if it is installed in a location where the ambient humidity may condensate on the drain pipe outer surface. This condensation could drop and cause damage. The insulation for the drain pipe...
Page 123 Piping installation Service Manual • Checking the unit with the drain-up mechanism and the float switch 1. Turn the power supply on. 2. Pour approximately 1.8 liters of water into the drain pan. Then, the float switch will be activated. Next, the drain pump will start working automatically. 3. Make sure that the water flows smoothly and that no water leakage occurs. If you cannot find water at the end of the drain pipe, pour again approximately 1.8 liters of water into the drain pan.
Page 124 Piping installation Service Manual • Piping Connection When connecting liquid piping for units with piping longer than 15 meters, apply a piping size of Ø9.53 mm (3/8 inches). Fix the connecting pipe as shown in the following figure using the insulation attached to the Indoor Unit. Fix this part with the attached cord Insulate this part with the...
Page 125 Piping installation Service Manual Field supplied insulation Do not make a gap  note - W hen polyethylene foam is applied, it is recommended the usage of a wall thickness of 10 mm for the liquid piping and 15 mm to 20 mm for the gas piping.  caution - P erform the insulation work after the pipe surface temperature decreases to the room temperature, if not the insulation material may melt. - I f the ends of the piping system are open after ending the piping work, attach caps or vinyl bags securely to the ends of the piping, avoiding moisture and dust entering. 2.2.2. Three principles on refrigerant piping work In case of using refrigerant R410A in the refrigeration cycle, the refrigeration oil should be of a synthetic type one. In order to avoid oxidation, pay much careful attention to basic piping work control to avoid infiltration of moisture or dust during the refrigerant piping work.
Page 126 Piping installation Service Manual Careful Basic Brazing Work Refrigerant shortage ↓ Basic Flaring Work  Performance decrease 3. No leakage - Brazing failure ↓ - Failed flaring work and insufficient No leakage shall exist  Oxidation of oil Basic Flange Connecting torque of squeezing flare ...
Page 127 Piping installation Service Manual Copper Copper Ød1 Ød1 pipe size pipe size +0.08 +0.1 0.33 +0.09 +0.1 0.39 Ø6.35 Ø6.5 Ø22.22 Ø22.42 -0.08 0.07 -0.09 0.11 +0.1 +0.08 0.35 +0.12 +0.1 0.42 Ø9.53 Ø9.7 Ø25.4 Ø25.6 -0.08 0.09 -0.12 0.08 +0.08 +0.1 0.38...
Page 128 Piping installation Service Manual 2.2.5. Refrigerant charge  caution - D o not charge OXYGEN, ACETYLENE, or other flammable and poisonous gases into the refrigerant because an explosion will occur. It is recommended that oxygen free nitrogen be charged for these types of tests cycle when performing a leakage test or an airtight test. These types of gases are extremely dangerous. - I nsulate the unions and flare-nuts at the piping connection part completely. - I nsulate the liquid piping completely to avoid a decrease of performance; if not, it will cause sweating on the surface of the pipe. - C harge refrigerant correctly. Overcharging or insufficient charging could cause a compressor failure. - C heck for refrigerant leakage in detail. If a large refrigerant leakage occurred, it would cause difficulty with breathing or harmful gases would occur if a fire were being used in the room. - I f the flare nut is tigthened too hard, the flare nut may crack after a long time and cause refrigerant leakage. 2.2.6. Caution of the pressure by check joint When the pressure is measured, use the check joint of gas stop valve (A), and use the check joint of liquid piping (B) in the figure below.
Page 129 Piping installation Service Manual 2.2.7. Refrigerant charge quantity ℓ Outdoor units has been charged with refrigerant for (m) of actual piping length. An additional refrigerant charged is required ℓ in systems with actual piping length longer than (m). Determine an additional refrigerant quantity according to the following procedure, and charge it into the system. Record the additional refrigerant quantity to facilitate service activities thereafter.
Page 130 Piping installation Service Manual (The side in the dip switch shows the position)  DSW2 on outdoor PCB1 Factory setting Factory setting Factory setting 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 Pipe Length 5 m or shorter Pipe Length 30 m or longer 2.2.8.
Page 131 Piping installation Service Manual 2.3. oUTDooR UNITS 2.3.1. Piping connection For a list of factory-supplied accessories, please refer to chapter one. 1. The pipes can be connected from any of the following four directions: front, rear, bottom or right side, when facing the outdoor unit.
Page 132 Piping installation Service Manual  note - P lace insulation (field supplied) to protect cables and pipes from being damaged by plate edges. • For the downward piping Wiring Gas piping Liquid piping Knock-out hole Bottom base  note The wring must not be in contact directly with the pipes • For the rear side piping Rear cover  note - R emove the rear pipe cover under the rear cover and remove the stipped part following the slit.
Page 133 Piping installation Service Manual 6. After connecting the refrigerant piping, seal the open space between knockout hole and refrigerant pipes by using the insulation material. Nº Description   Insulation material  Unit side  Insulation material  Field supplied ...
Page 134 Piping installation Service Manual • Outdoor unit stop valve Do not apply two spanners at this Stop valve position. If applied, leakage wil occur. Flare nut  caution - A t the test run, fully open the spindle. If not fully opened, the devices will be damaged. - D o not attempt to turn service valve rod beyond its stop. - D o not loosen the stop ring. If the stop ring is loosened, it is dangerous since the spindle will hop out. - D o not apply force to the spindle valve at the end of opening (5N.m. or smaller). The back seat construction o • Evacuation and refrigerant charge Connect the gauge manifold using charging hoses with a vacuum pump or a nitrogen cylinder to the check joints of the liquid line and the gas line stop valve.
Page 135 Piping installation Service Manual 2.3.2. Refrigerant piping length The refrigerant piping between the indoor unit and the outdoor unit should be designed using the following table. • Piping length specification: Maximum Height difference. Maximum piping length between outdoor unit is higher than indoor unit/ outdoor and each indoor unit (l) Unit Indoor unit is higher than outdoor unit Actual/Equivalent...
Page 136 H(V)RNME • Installing distributor 1. Install the Distributor supplied by HITACHI on request. A tee can not be installed instead of a branch pipe. Sample: twin system 2. Installing the Distributor. Fix the branch pipe horizontally to the pillar, wall or ceiling. Piping must not be fixed rigidly to the wall as thermal expansion and contraction can cause pipe fracture.
Page 137 Piping installation Service Manual Horizontal To indoor unit Horizontal To indoor unit Vertical Horizontal To outdoor unit Fix the branch pipe to the surface of pillar Fixing the branch pipe to ceiling or beam or wall  note - F ix the piping from outside of insulation or inserting absorber between the pipe and a fixing metal. 3.
Page 138 Piping installation Service Manual 2.3.5. Drain discharging boss When the base of the outdoor unit is temporarily used as a drain receiver and the drain water in it is discharged, this drain boss is used to connect the drain piping. Model Applicable Model DBS-26...
Page 139 Piping installation Service Manual 2.4. INDooR UNITS AND CoMPlEMENTARY SYSTEMS 2.4.1. RCI-(1.5~6.0)FSN2E • Refrigerant piping The correct position of the refrigerant piping connection is shown below. The piping connection must be accessible from all directions (top, left or right).   ...
Page 140 Piping installation Service Manual Pitch of 4% (1/25) to 1% (1/100).  caution - D o not apply excessive force to the drain piping connection. It could cause a damage. - D o not use a bent or twisted drain hose. It will cause water leakage. Insulate the drain pipe after connecting the drain hose. Do not use adhesive between the drain piping connection and the drain hose.
Page 141 Piping installation Service Manual Units  Gas Piping mm (in)  liquid Piping mm (in) RCIM-1.0~1.5 Ø12.80 (1/2) Ø6.35 (1/4) RCIM-2.0 Ø15.88 (5/8) • Drain piping The correct position of the drain piping connection is shown below. Drain pipe connection View from A Prepare a polyvinyl chloride (PVC) pipe with a 32 mm outer diameter.
Page 142 Piping installation Service Manual Hose band (Accessory) Do Hose band not use adhesive (Accessory) Drain pipe connection Insulation (Field Vinyl chloride Ø32 (Field supplied) supplied) Use vinyl chloride type adhesive Drain hose (Accessory) 2.4.3. RCD-(1.5~5.0)FSN2 • Refrigerant piping The correct position of the refrigerant piping connection is shown below. The piping connection must be accessible from all directions (top, left or right).
Page 143 Piping installation Service Manual  caution - D o not apply excessive force to the drain piping connection. It could cause a damage. - D o not use a bent or twisted drain hose. It will cause water leakage. Insulate the drain pipe after connecting the drain hose. Do not use adhesive between the drain piping connection and the drain hose. Hose band (Accessory) Do Hose band not use adhesive (Accessory)
Page 144 Piping installation Service Manual  Piping installation work Piping installation work should be performed from the bottom side of the unit. Remove the air inlet grill before beginning with the piping installation work, according to following steps: 1. Slide the grill knobs to the rear side. ...
Page 145 Piping installation Service Manual  Rear side connection 1. Knockout hole 2. Seal piping Factory-supplied sealing plate  (0.8x118x142 mm)  Refrigerant gas piping  Refrigerant liquid piping  Seal with insulation    Sec. P.P.   M4 screw ...
Page 146 Piping installation Service Manual Wire clamp A Drain hose Wire clamp B Drain boss Insulation material Drain pipe  Left side connection Fan runner Fan motor Drain boss Drain plug Fastener band Insulation plug Drain plug 1. Remove the drain plug of the drain hose on the left side as the following procedure explains. 2.
Page 147 Piping installation Service Manual  Drain piping connection Prepare a PVC pipe with an outer diameter of 26 mm. Pay attention to the position of the drain pipe. Keep a down-slope pitch of 4% (1/25) to 1% (1/100). Do not create an up-slope for the drain piping in order to prevent condensate water to settle and getting out.
Page 148 Piping installation Service Manual 2.4.5. RPI(M)-(1.5~6.0)FSN2E / RPI-(8.0~10.0)FSNE  RPI 1.5 Piping position The correct position of the refrigerant piping connection is shown below. Gas piping  Liquid piping  Drain pipe     Model RPI 0.8~1.5 Gas piping Ø12.7 (1/2") Liquid piping Ø6.35 (1/4")
Page 149 Piping installation Service Manual • Piping installation work  note - W hen installing pipes, make sure that enough space is provided for servicing the electrical box. • Drain piping The correct position of the drain piping connection is shown below. Drain piping To guarantee free access to both the electrical box and the drain pipe, please refer to RPI 2.0~6.0. ...
Page 150 Piping installation Service Manual Connect a siphon to the drain pipe, assuring a down-slope pitch of 4% (1/25) to 1% (1/100), as shown in the next figure (for RPI 8/10). >75 mm Down-slope pitch of 4% (1/25) to 1% (1/100) Plug ...
Page 151 Piping installation Service Manual The correct position of the refrigerant piping connection is shown below. Gas piping  Liquid piping  Drain pipe      Model RPI 0.8~1.5 Gas piping Ø12.7 (1/2")  Liquid piping Ø6.35 (1/4") • Flare pipe dimensions Nominal diameters outer diameters...
Page 152 Piping installation Service Manual • Drain piping The correct position of the drain piping connection is shown below. Drain piping To guarantee free access to both the electrical box and the drain pipe, please refer to RPI 2.0~6.0.  Piping connection Prepare a PVC pipe with an outer diameter of 32 mm (RPI-0.8~6.0) or 25 mm (RPI 8/10).
Page 153 Piping installation Service Manual >75 mm Down-slope pitch of 4% (1/25) to 1% (1/100) Plug  note - W hen the relative humidity of the inlet or the ambient air exceeds 80%, place an auxiliary drain pan, which is field-supplied, beneath the indoor unit, as shown below. Indoor unit Auxiliary drain pan (Field-supply) • Refrigerant piping  RPI 2.0~6.0 Piping position The correct position of the refrigerant piping connection is shown below. Gas piping ...
Page 154 Piping installation Service Manual • Flare pipe dimensions Nominal diameters outer diameters +0/-0.4 mm 6.35 9.53 13.2 12.70 16.6 15.88 19.7 • Thickness of coper pipes Nominal diameters outer diameters Thickness (mm) 6.35 0.80 9.53 0.80 12.70 0.80 15.88 1.00 • Flare nut dimensions Nominal diameters outer diameters B (mm) 6.35 9.53...
Page 155 Piping installation Service Manual For RPI-8~10 Drain piping Keep the electrical box and the drain pipe access free of piping. To guarantee free access to both the electrical box and the drain pipe, there are the following possibilities: option 1 option 2 ...
Page 156 Piping installation Service Manual Connect a siphon to the drain pipe, assuring a down-slope pitch of 4% (1/25) to 1% (1/100), as shown in the next figure (for RPI 8/10). >75 mm Down-slope pitch of 4% (1/25) to 1% (1/100) Plug ...
Page 157 Piping installation Service Manual  Liquid Piping Position For left side piping Contour of unit Model RPK e (mm) f (mm) 1.0-1.5 Insulation For right side piping Refrigerant pipe (Liquid) 2.5~4.0 Diameter liquid g (mm) h (mm) pipe 1.0-1.5 For rear side piping 2.5~4.0 ...
Page 158 Piping installation Service Manual  Size of piping connection Model RPK 1.0-1.5 2.5~4.0 Gas piping 12.7 15.88 15.88 Liquid piping 6.35 6.35 9.53 • Flare pipe dimensions Nominal diameters outer diameters +0/-0.4 mm 6.35 9.53 13.2 12.70 16.6 15.88 19.7 • Thickness of coper pipes Nominal diameters outer diameters Thickness (mm)
Page 159 Piping installation Service Manual 2. When the left side drain piping connection is performed, remove the cap of left side drain pipe, and then attach this cap to the drain pipe located on the right side, in order to change drain piping connection from right side to left side. Change drain piping connection Drain hose Drain outlet...
Page 160 Piping installation Service Manual 2.4.7. RPF(I)-(1.5~2.5)FSN2E • Refrigerant piping Piping position The correct position of the refrigerant piping connection is shown below. Liquid piping Liquid piping Gas piping Gas piping Drain piping Drain piping Model RPF(I) 1.0-1.5 Gas Piping Ø 12.70 (5/8) Ø...
Page 161 Piping installation Service Manual • Drain piping The correct position of the drain piping connection is shown below. Prepare a PVC pipe with an outer diameter of 18.5 mm. Fasten the pipe to the drain hose with an adhesive. Insulate the drain pipe after connecting the drain hose as shown in the figure below. Drain hose Insulation material (Field-supplied) PVC pipe (Field-supplied)
Page 162 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 163 Service Manual ElECTRICAl WIRING This chapter describes the procedures that you must follow to create the electrical wiring connections for the IVX outdoor units and for the full range of Hitachi indoor units. CoNTENTS 3.1. General check ..........................3-2 3.2. Electrical wiring for the outdoor unit ....................3-2 3.2.1.
Page 164 Electrical wiring Service Manual 3.1. GENERAl CHECK danger - B efore installing the electrical wiring or before performing a periodical check, turn OFF the main switch to the indoor unit and the outdoor unit. For safety reasons, be sure that the indoor fan and the outdoor fan have stopped. - P revent the wires from touching the refrigerant pipes, the plate or cutting edges and the electrical components inside the unit, to prevent them getting damaged. In worst cases, a fire may occur. - Tightly secure the wires with the cord clamp inside the indoor unit.  note - I n case of performing a test run operation take especially care because some security features are disabled: the units will operate during 2 hours without Thermo-OFF, and the 3-minute guard for compressor protection will not be effective during the test. - F ix rubber bushes with an adhesive on the panel when the conduit pipes to the outdoor unit are not used. - I n forced stopped compressor mode, the compressor operation is OFF. 3.2. ElECTRICAl WIRING FoR THE oUTDooR UNIT 3.2.1.
Page 165 Electrical wiring Service Manual Wiring System [Connection (Connection of Terminals)] [O.U.-O.U.(L1-L1, L2-L2, L3-L3, N-N)] Power Supply DC inverter [I.U.-I.U.(L1-L1, N-N)] Operating DC inverter [O.U.-I.U., I.U.-I.U.(1-1, 2-2)] Remote Control DC inverter [I.U.-I.U.(A-A, B-B)] O.U.: Outdoor Unit; I.U.: Indoor unit 3. Connect the wires between the outdoor unit and the indoor unit to the terminals 1 and 2 on the terminal board. 4.
Page 166 Electrical wiring Service Manual SEG1 DSW6 DSW1 LED2 PSW2 PSW1 PSW3 DSW4 DSW3 LED1 DSW2 LED3  DSW5  note ■ - T he mark “ “ indicates the position of dips switches. ■ - N o mark “ ” indicates pin position is not affecting. - T he figures show the settings before shipment or after selection.  warning - B efore setting dips switches, first turn the power source off and then set the position of the dips switches. In case of setting the switches without turning the power source off, the contents of the setting are invalid.
Page 167 Electrical wiring Service Manual • DSW2: Piping length/selection function Function Setting position Setting before shipment 1 2 3 4 5 6 5 m < Lt 1 2 3 4 5 6 Piping length Lt > 30 m 1 2 3 4 5 6 5 m <...
Page 168 Electrical wiring Service Manual Rotary switches' positions (RSW1) are set by inserting a screw driver into the groove. • DSW5: Transmission setting of end terminal resistance Before shipment, No. 1 pin of DSW5 is set at ON. In case of having 2 or more outdoor units connected to the same H-link, set for the second unit the pin number 1 of DSW5 at OFF.
Page 169 Electrical wiring Service Manual The function selection using the jumper lead setting is shown in the table below. Setting Function Details Cooling -15ºC & Heating. When JP1 is set to “open”, temperature range for cooling mode is fixed until -15 ºC. (Only for RAS- Not available for individual indoor control 8~12 HRNM)
Page 170 Electrical wiring Service Manual 3.3.1. Electrical wiring connection Screw  note - U se twisted shielded pair cable or shield pair cable for transmission wires between the indoor and the outdoor units, and connect the shielded part to the earth screw in the electrical box of the indoor unit 3.3.1.1. RCI units ¡ The correct electrical wiring connection for the indoor unit is shown in the following figures. For the intermediate connection between the indoor unit and the air panel, refer to chapter 1.4. Power source wiring Operating wiring Remote control switch wiring...
Page 171 Electrical wiring Service Manual Electrical box   Stopper (Metal)  Power source wiring. Signal wiring. Remote  control switch wiring.  Screw  Printed circuit board (PCB)   Terminal board (TB2)   Earth screw   Terminal board (TB1) ...
Page 172 Electrical wiring Service Manual Connect the power supply and ground wires to the terminals in the electrical box (see next figures). Connect the transmission wires between the indoor unit and the outdoor unit to their terminals in the electrical box (see next figures).
Page 173 Electrical wiring Service Manual 3.3.1.3. RCD units ¡ The correct electrical wiring connection for the indoor unit is shown in the following figures. For the intermediate connection between the indoor unit and the air panel, refer to chapter 1.6. Wiring connection hole (30x39) Wiring connection hole (Ø...
Page 174 Electrical wiring Service Manual 3.3.1.4. RPC units ¡ The correct electrical wiring connection for the indoor unit is shown in the following figures. Electrical box  Cord clamp   Knock out hole for the wirings   Grille  RCS (optional) ...
Page 175 Electrical wiring Service Manual • RPI - 0.8~1.5 Terminal board connections: Remote Control (PC-ART/PC-P2HTE) Holes for wiring Signal wires Power supply wires (Single phase) Earth wiring PCB: printed circuit board TF: transformer TB: terminal board Wiring connection • RPI - 2.0~6.0 • Terminal board connections: Remote Control (PC-ART/PC-P2HTE) Holes for...
Page 176 Electrical wiring Service Manual The service panel for the fan motor of the indoor unit is provided at the bottom side of the unit, and the service panel for the electrical box is provided at the right side of the unit as shown below. Wiring connection Service panel for electrical box...
Page 177 Electrical wiring Service Manual To protect the unit from the condensate water and the insects, run the cables with the sealing material (cover plate). Next seal the wiring connection hole using sealing material. • Terminal Board Connections: Remote Control (PC-ART/PC-P2HTE) Holes for wiring Signal wires...
Page 178 Electrical wiring Service Manual RPK-1.0-1.5 Terminal board   Fasten wiring with cable tie  Screw for earth wire  Electrical box cover    Receiver PCB   Power source terminal board  Loose the right side screw to open and to ...
Page 179 Electrical wiring Service Manual Check that the terminal specification is applied to the screw (M4 for power supply, M3.5 for operating line) of the terminal box. Use the crimping terminal when stranded wiring If a single wire is used, connect the wire directly, as shown in the below figure.
Page 180 Electrical wiring Service Manual The correct wiring from the left-rear side to the RPFI is shown below. Wiring Front cover Wall Electrical The correct wiring from the right-rear side is shown below. Electrical box Wall Intermediate wiring Remote control switch Power supply wiring Through holes The correct wiring connection to the terminal board is shown below.
Page 181 Electrical wiring Service Manual RPC-FSN2E, RPF(I)FSN2E, RPI(0.8~1.5 \ RPI 2.0~6.0 \ RPIM 0.8~1.5) FSN2E DSW5 RSW2 DSW4 DSW3 DSW6 RSW1 DSW7 RPK-(1.0~1.5) FSN2M DSW2 DSW3 PSW301 DSW5 RSW2 DSW6 RSW1 DSW7 RPK-(2.0~4.0)FSN2M DSW6 DSW3 DSW2 RSW1 PSW302 RSW2 PSW301 DSW7 DSW5 ...
Page 182 Electrical wiring Service Manual • DSW 6 / RSW1: indoor unit address For setting indoor unit address. Set the DSW6 and RSW1 not to overlap the setting of other indoor units in the same refrigerant cycle. (If not set, the automatic address function is performed). Setting position Setting position (DSW6) (RSW1)
Page 183 Electrical wiring Service Manual Setting position (Comes from page 3-20) • DSW5 and RSW2: refrigerant cycle number setting Setting the refrigerant cycle number is required. Before the shipment, all the setting positions are OFF. (The factory setting for refrigerant cycle number is 0). Setting position Setting position (DSW5) (RSW2) Setting for...
Page 184 Electrical wiring Service Manual • DSW7: setting the fuse recover and the remote control selection No setting is required. Before shipment, all the setting positions are OFF. PC-ART/PC-P2HTE: Remote control switch selected. Only RPK-1.0-1.5 Except RPK Applying high voltage to the terminals 1 and 2 of the TB1, FSN2M the fuse on the PCB1(M) will blow out.
Page 185 Electrical wiring Service Manual KPI. Energy recovery ventilation units. The electrical wiring connection for the unit is shown below: Cut out the centre of the rubber bushing in the wiring connection hole, as shown in next figure Rubber bushing Cut inside Connect the cable of an optional remote control switch or an optional extension cable to the connectors on the printed circuit board inside the electrical box through the connecting hole in the cabinet.
Page 186 Electrical wiring Service Manual • Controlled network systems (CS-NET WEB) • KPI Energy recovery ventilation unit + PC-ART/PC-P2HTE • Simultaneous operation (Set-Free + Energy recovery ventilation units)  note - Set the number by using the rotary switch (RSW) on the PCB in the indoor units and the total heat exchanger. - F irstly set the unit number for the indoor unit and secondly set the unit number of the total heat exchanger. The unit number of the total heat exchanger should be larger than the unit number of the indoor unit. SMGB0047 rev.0 - 06/2008 3-24 Electrical wiring for the indoor unit https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 187 Electrical wiring Service Manual ECoNoFRESH KIT The electrical wiring connection for the Econofresh kit is shown in the following figure. Mount the outdoor thermistor at a position near the outdoor air inlet. Pay attention when placing the outdoor thermistor. It must not be in contact with direct sunshine or rainwater. RPI PCB Connector CN17...
Page 188 Electrical wiring Service Manual Connect the transmission wiring to the units belonging to the same refrigerant cycle (the refrigerant piping and the transmission wiring should be connected to the same indoor units). Open a hole near the connection terminal of the power source wiring when multiple outdoor units are connected from one single power source line.
Page 189 Electrical wiring Service Manual 3.5. WIRE SIzES • Field minimum wire sizes for the power source Power Source Cable Size Transmitting Cable Size Model Power Source Max. Current (A) EN60 335-1 EN60 335-1   All Indoor Units (*) 0.75 mm² 230V/1φ/50Hz RPI-8-10 1.5 mm² RAS-3HVRNME 2.5 mm² RAS-4HVRNME 18/24 4.0 mm²...
Page 190 Electrical wiring Service Manual • Wire size in relationship to the intensity In case that the power cables are connected in series, add each unit maximum current and select according to the next table. Selection according to Selection according to EN60 335-1 lFC (at cable Temp. of 60 ºC) Current i (A) Wire Size (mm²) Current i (A)
Page 191 The combinations between units that use H-Link system with units that use H-Link II, and its respective remote controls, is explained here. It is possible to connect the new Hitachi outdoor units RAS-H(V)RNM(E) with indoor units FSN1(E) and FSN2(E). Is is also possible to connect new indoor units FSN2(E) with outdoor units RAS-H(V)RNE/H(V)NE y RAS-H(V)RNM(E).
Page 192 Electrical wiring Service Manual Max. number of indoor units Max. number of sets (*) (*) Sets = Indoor units + outdoor units + central control; HL: H-LINK; HL II: H-LINK II. System with indoor units, outdoor units, H-LINK II remote control and H-LINK central control. Range number of refrigerant circuits 0-15 Range number of indoor units 0-15 Max.
Page 193 Electrical wiring Service Manual 4. System with indoor units, outdoor units, H-LINK and H-LINK II remote control and H-LINK central control. Range number of refrigerant circuits 0-15 Range number of indoor units 0-15 Max. number of indoor units Max. number of sets (*) (*) Sets = Indoor units + outdoor units + central control; HL: H-LINK; HL II: H-LINK II.
Page 194 Electrical wiring Service Manual Indoor unit outdoor unit 3~12 H(V)RNM(E) RPFI • H-LINK II features It is possible to control up to 160 indoor units (64 groups of indoor units) with only one control panel (using the PSC- 64S controller). It is possible to control up to 200 units (indoor unit, outdoor unit and central control). The total wiring length is remarkably reduced.
Page 195 Electrical wiring Service Manual 1. Using H-LINK system for air conditioning systems without a central control device (CSNET WEB or PSC-5S). Line connection for all units (including Utopia and/or Set-free, Set-free mini and DC inverter). Line connection for each floor Connection with one main line and with the branch lines for the units 2.
Page 196 Electrical wiring Service Manual In this case, the CS-NET WEB wiring can be connected at any point of the H-LINK II wiring. In case of not using a central control device when the electrical wiring is performed. In this case, you must connect the H-LINK II wiring to all the systems.
Page 197 Electrical wiring Service Manual • DIP Switch setting of indoor PCB and Outdoor PCB It is required to set DIP switches of every indoor unit and outdoor unit. Example of the settings of the DIP switches: Cycle nº 2 Cycle nº 1 Cycle nº 0 DSW5 Terminating Resistance DSW4 Refrigerant Cycle Nº...
Page 198 Electrical wiring Service Manual  Connection example between H-LINK and H-LINK II units In case of mixed H-LINK and H-LINKII systems, set H-LINK units in the first 16 system positions, as shown in the following figure. There are 42 systems, 16 with FSN1E indoor units type and 26 with FSN2E indoor units type. Only H-LINK II is applicable It is possible to use both actual H-LINK or new H-LINK II.
Page 199 Electrical wiring Service Manual • Electrical wiring (System) Outdoor Unit P\\C Central Station H-LINK 1 Indoor Unit H-Link H-LINK 2 Relay H-LINK 3 H-Link H-Link Relay Relay H-Link 4 H-Link 5  note - Y ou can install a maximum of 4 H-LINK II relays in one system. - M ake sure that the quantity of connections is the following: - R ef. system quantity: within 64 - I ndoor unit quantity: within 160 - T otal length of each divided H-LINK II: up to 1000m - I f the H-LINK II is divided into 5 blocks as shown above in the previous figure, set the end terminal resistance in...
Page 200 Electrical wiring Service Manual If there are only indoor units connected to the H-Link II system, set the end terminal resistance at the H-LINK relay. - If the H-LINK II relay is connected to CN1, set the pin No.1 of DSW1 at ON. If the H-LINK relay is connected to CN2, set the pin No.1 of DSW2 at ON.
Page 201 If the fuse in the transmission circuit is blown out due to the incorrect wiring, refer to “Fuse recovery setting”. 3.6. ElECTRICAl WIRING DIAGRAMS This sub-chapter shows the electrical wiring diagram for each unit of the Hitachi IVX series. Unit model Page number RCI-(1.5~6.0)FSN2E...
Page 202 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-40 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 203 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-41 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 204 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-42 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 205 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-43 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 206 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-44 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 207 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-45 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 208 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-46 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 209 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-47 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 210 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-48 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 211 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-49 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 212 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-50 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 213 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-51 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 214 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-52 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 215 Electrical wiring Service Manual PCN6 PCN5 PCN3 SMGB0047 rev.0 - 06/2008 3-53 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 216 Electrical wiring Service Manual PCN6 PCN5 PCN3 SMGB0047 rev.0 - 06/2008 3-54 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 217 Electrical wiring Service Manual PCN6 PCN5 PCN3 SMGB0047 rev.0 - 06/2008 3-55 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 218 Electrical wiring Service Manual C110 Q203 Q204 CP21 CP22 C208 C105 C109 CP13 R112 CP19 C108 LED201 ê‘ C104 CP14 CP23 Lot No. C100 R113 R109 R114 CP18 CP15 LED202 CP27 R110 CP25 CP10 CP11 CP24 CP12 CP30 C201 CP29 R304 R210 DSW1...
Page 219 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-57 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 220 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-58 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 221 Electrical wiring Service Manual SMGB0047 rev.0 - 06/2008 3-59 Electrical wiring diagrams https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 222 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 223 Control system Service Manual CoNTRol SYSTEM This chapter presents the control system flowcharts for the H(V)RNME Outdoor units series and the complete range of the Hitachi indoor units. CoNTENTS 4.1. Device control system ........................4-2 4.2. Indoor unit PCB ..........................4-4 4.2.1.
Page 224 Control system Service Manual 4.1. DEVICE CoNTRol SYSTEM Purpose Control subject Cooling operation Heating operation Defrost operation The frequency control is determined with The frequency control is determined with Fixed frequency the next parameters: the next parameters: (stop compressor Control frequency of - Ratio (I.U.
Page 225 Control system Service Manual The figure below shows the outline of the control system Multiple signals Single signals Wireless remote control switch Thermistor for inlet air Suction gas pressure sensor Thermistor of discharge air Discharge gas pressure sensor Operation signals Thermistor for gas pipe Thermistor for outdoor temperature Thermistor for liquid pipe...
Page 226 Control system Service Manual 4.2. INDooR UNIT PCB 4.2.1. Layout of the printed circuit board for RCI, RCIM, RCD • PCB drawing The PCB in the indoor unit operates with five types of DIP switches, and two rotary switches. The location is as follows: lED indication This LED indicates the transmission status LED1 between the indoor unit...
Page 227 Control system Service Manual 4.2.2. Layout of the printed circuit board for RPIM, RPI-1.5~6.0, RPC, RPF(I) • PCB drawing The PCB in the indoor unit operates with four types of DIP switches, one sliding switch, and one rotary switch. The location is as follows: lED indication This LED indicates the transmission status LED1 between the indoor unit and the RCS...
Page 228 Control system Service Manual 4.2.3. layout of the printed circuit board for RPI-(8~10) • PCB drawing The PCB in the indoor unit operates with four types of DIP switches and one rotary switch. The location is as follows: lED indication LED1 Green Power source for the PCB This LED indicates the...
Page 229 Control system Service Manual 4.2.4. layout of the printed circuit board for RPK FSN2M • PCB drawing The PCB in the indoor unit operates with four types of DIP switches, one sliding switch, one rotary switch and one push switch. The location is as follows: Connector indication Switch indication THM1...
Page 230 Control system Service Manual 4.3. CoMPlEMENTARY SYSTEM 4.3.1. KPI. Enery recovery ventilation unit. • PCB drawing lED indication LED1 Green Power source for the PCB This LED indicates the transmission status LED2 Yellow between the indoor unit and the RCS This LED indicates the transmission status LED4 between the indoor unit...
Page 231 Control system Service Manual 4.4. oUTDooR UNITS PCB 4.4.1. RAS-(3~12)H(V)RNME • PCB drawing lED indication This LED indicates the LED1 transmission status between the indoor unit and the RCS This LED indicates the transmission status between LED2 Yellow the indoor unit and the outdoor unit LED3 Green...
Page 232 Control system Service Manual 4.5. PRoTECTIoN AND SAFETY CoNTRol Compressor protection The following devices and their combinations protect the compressor High-pressure switch This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. oil heater This band heater protects against the oil carry-over during the cold starting, as the band heater is energized while the compressor is stopped.
Page 233 Control system Service Manual • RAS-(8~12)HRNM RAS-8HRNM RAS-10HRNM RAS-12HRNM For compressor Automatic reset, non-adjustable (each one for each compressor) -0.05 Pressure switches 4.15 -0.15 High Cut-out Cut-in 3.20 ± 0.15 For control Fuse 3~, 400V, 50Hz CCP timer Non-adjustable Setting time Automatic reset, non-adjustable For condenser fan motor (each one for each compressor)
Page 234 Control system Service Manual 4.6. STANDARD oPERATIoN SEQUENCE 4.6.1. Cooling operation I.U.: Indoor unit O.U.: Outdoor unit Power to CH : ON Temp. ≤ 55 ºC Power to Power to PCB in on the top of O.U.: ON O.U.: ON comp.
Page 235 Control system Service Manual I.U.: Indoor unit O.U.: Outdoor unit from 1 Start of AUTO-LOUVER only for air panel Pressing Alternatively or indoor unit with AUTO-LOUVER switch auto-louver Stop of AUTO-LOUVER Stop of inverter Stop of MC Temp. ≤ 55 ºC on the top of Power to CH : ON comp.
Page 236 Control system Service Manual 4.6.2. Dry operation I.U.: Indoor unit O.U.: Outdoor unit Temp. ≤ 55 ºC Power to on the top Power to CH : ON O.U.: ON of comp. > 60 ºC Power to CH : OFF Auto-louver 0 Reset Start of transmission between Power to...
Page 237 Control system Service Manual I.U.: Indoor unit O.U.: Outdoor unit from 1 Start of AUTO-LOUVER only for air panel Pressing Alternatively or indoor unit with AUTO-LOUVER switch auto-louver Stop of AUTO-LOUVER Stop of inverter Stop of MC Temp. ≤ 55 ºC on the top of Power to CH : ON comp.
Page 238 Control system Service Manual 4.6.3. Heating operation I.U.: Indoor unit O.U.: Outdoor unit Temp. ≤ 55 ºC Power to Power to PCB in on the top Power to CH : ON O.U.: ON O.U.: ON of comp. > 60 ºC Power to CH : OFF Only for I.U.
Page 239 Control system Service Manual I.U.: Indoor unit O.U.: Outdoor unit from 1 Start of AUTO-LOUVER air panel Pressing only for Alternatively or Indoor Unit AUTO-LOUVER switch with Auto-Louver Stop of AUTO-LOUVER Stop of inverter Stop of MC Temp. ≤ 55 ºC Power to CH : ON on the top of comp.
Page 240 Control system Service Manual 4.6.4. Defrost operation control Heating operation Power to RVR: OFF Defrosting DEFROST indication start condition Power to MIF: OFF Power to MOF: OFF Defrosting operation Defrosting DEFROST disappears stop condition Inverter Power to MOF : ON Frequency of Power to RVR: ON Comp.
Page 241 Control system Service Manual 4.7. STANDARD CoNTRol FUNCTIoNS 4.7.1. Freezing protection during cooling process or dry operation Power supply Cooling or dry operation Is compressor operated for more than *30 min.? *) The judging time varies under the condition Cooling or dry operation Gas pipe surface Higher than 0 ºC...
Page 242 Control system Service Manual 4.7.2. P revention control for excessively high discharge gas temperature Heating operation Lower than 65 ºC Outlet air temp. of I.U. Higher than 65 ºC CMC : OFF Compressor stop Is it continuous for more than 3 min? Higher than 60 ºC Discharge air temp.
Page 243 Control system Service Manual 4.7.3. Indoor electrical expansion valve control 1. After supplying power source, the electronic expansion Time Chart valve is completely closed in order to initialize its opening. Defrost Heating 2. When the compressor is stopped, the electronic expansion valve is completely closed to adjust its Opening of electronic opening.
Page 244 Control system Service Manual 4.7.4. Outdoor unit electrical expansion valve control 1. After supplying power source, the electronic expansion valve is completely opened. 2. When the compressor is stopped, the electronic expansion valve is completely closed to adjust its opening. 3. At starting operation (compressor is operated), opening of the electronic expansion valve is set at a specified opening.
Page 245 Control system Service Manual 4.7.5. Activation for protection device control Operation Excessively high MD : ON FS : OFF Power to H2: OFF YH2 : Close drain water level “RUN” light flickers Alarm of I.U. PCB Excessively high MIF : stop temp.
Page 246 Control system Service Manual 4.7.6. outdoor fan control during cooling operation  note Operation - This sequence is for the standard operation *1) Fan step at start 10 sec. 100% air flow volume outdoor temp. (Tao) Air flow ratio Tao ≤ 2ºC 2ºC < Tao ≤ 12ºC *1) Fan step at start 12ºC <...
Page 247 Control system Service Manual 4.7.7. outdoor fan control during heating operation Operation Inlet air temp. of indoor unit (ºC) Fan step: 30% area 10 sec. 100% air flow volume Air flow ratio: 30% area (1*) Air flow ratio ≥ 100% Air flow ratio 100% Air flow ratio 30% Outdoor temperature (ºC)
Page 248 Control system Service Manual 4.7.8. Preheating control of compressor Operation > 55ºC Temp. on the top of comp. ≤ 55ºC CH : ON < 60ºC Temp. on the top of comp. ≥ 60ºC CH : OFF 4.7.9. Prevention control for high pressure increase This function is performed to prevent the abnormal condition (Alarm: 02) when the outdoor air flow is decreased by a seasonal wind against air outlet.
Page 249 Available optional functions Service Manual AVAIlABlE oPTIoNAl FUNCTIoNS CoNTENTS 5.1. Indoor units ...........................5-2 5.1.1. Available ports ............................5-2 5.1.2. Configuration ............................5-4 5.1.3. Programming with the PC-ART ......................5-6 5.1.4. Description of optional input signals .....................5-8 5.1.5. Description of optional output signals ....................5-11 5.2.
Page 250 Available optional functions Service Manual 5.1. INDooR UNITS The system has eight input and six output optional signals. Both signals are programmed in the PCB of the indoor unit: with the CN3 connector for the input signals and the CN7 and CN8 connectors for the output signals. Input connector CN3 has two ports to configure two input options out of the eight options the system has.
Page 251 Available optional functions Service Manual • Specification of the components for a correct installation Component Manufacturer or specifications Remarks OMRON mini power relay model: Auxiliary relay (X2) Voltage between relay terminals 12 Vdc - 75 mA MY1F or equivalent (SS1) (X1) contact (example) Manual type Voltage between terminals of the 230V - 5 mA contactor De optional part PCC-1A (capable 3P connector cable of connecting the JST connector...
Page 252 Available optional functions Service Manual 5.1.2. Configuration Available optional signals Indoor units have optional signals that are described in the following table. The configuration of the signals is performed via remote control, except for RPK-(0.8~4.0)FSNM units where the configuration is performed via DIP switches. • Optional input signals Indic.
Page 253 Available optional functions Service Manual • Optional output signals Indic. output signal Application Remote control display Port (output signal) Not set Not set CN7 or I (only CN7 for RPK) Operation signal This signal allows to control the status of CN7 or 0...
Page 254 Available optional functions Service Manual 5.1.3. Programming with the PC-ART The optional signals are programmed using the remote control switch. • Programming and setting mode Make sure the unit is stopped. Press the “OK” and the “RESET” switches on the remote control switch simultaneously more than 3 seconds, and the remote control switch is changed to the field setting mode.
Page 255 Available optional functions Service Manual • Changing the optional signals and setting conditions a. At the optional setting mode, the indication on the remote control switch is changed as shown below.  The allocated port for the input signal and the output signal is displayed in the segments of the time indication of the timer setting. Refer to the table below for the displayed port and the connector of the indoor unit PCB.
Page 256 Available optional functions Service Manual 5.1.4. Description of optional input signals • Control by field-supplied room thermostat (0/0) When operating with a field supplied room thermostat instead of the inlet thermistor of the indoor unit, connect the cable and use the materials as shown in section 5.1.1. Cooling Heating Signals 2...
Page 257 Available optional functions Service Manual • Function 2 - Remote ON of the unit (04) (pulse signal input) This is a remote ON/OFF optional signal that uses the pulse signal. Connect the cabling and use the materials as shown in section 5.1.1. • Function 2 - Remote OFF of the unit (05) (pulse signal input) This is a remote OFF optional signal that uses the pulse signal. Connect the cabling and use the materials as shown in section 5.1.1.
Page 258 Available optional functions Service Manual Time chart CN3 signal Control using the RCS Unit operation Time • Setting the cooling mode or the heating mode (07) By using this optional signal, the cooling or heating operation mode can be changed by sending a contact signal from outside the unit. The operation mode is followed by the field-supplied switch or the remote control switch, which is used last.
Page 259 Available optional functions Service Manual  note - T he remote control thermistor cannot be used if a remote temperature sensor is being used - D uring the heating process, the function “heating temperature calibration” is automatically cancelled. (Refer to section 5.4.2). - I f you are using this remote sensor, select the location for installing the remote sensor according to the following requirements: - A location where the average room temperature can be detected. - A location where the thermistor (sensor) is not directly exposed to the sunlight. - A location where a heat source is not near the thermistor. - A location where the outdoor air that is caused by opening and closing the doors does not affect the room temperature. 5.1.5. Description of optional output signals • Picking up the operation signal (0) This optional signal is used to pick up the operation signal.
Page 260 Available optional functions Service Manual 5.2. ECoNoFRESH KIT The system has three optional input signals that are programmed in the PCB of the indoor unit using connector CN3 of the RPI unit. The CN3 connector has two ports to configure the optional input signals the kit has. Outdoor cooling function e1 does not require setting connector CN3 These signals are set up using the remote control switch, as explained in section 5.4.2 of this chapter.
Page 261 Available optional functions Service Manual 5.3. H(V)RNM oUTDooR UNITS The system has eight input and five output signals that are programmed in the PCB of the outdoor unit using connectors CN1 and CN2 for the input signals and CN7 for the output signal. Connectors CN1 and CN2 have two and one ports respectively to configure three input options out of the eight options the system has.
Page 262 Available optional functions Service Manual Specification of the components for a correct installation Component Manufacturer or specifications Remarks OMRON mini power relay model: MY1F or Auxiliary relay (X3) Voltage between relay terminals 12 Vdc - 75 mA equivalent Voltage between terminals of the 230V - 5 mA (SS1) (x1), (x2) contact example Manual type contactor Optional part PCC-1A (capable of connecting...
Page 263 Available optional functions Service Manual 5.3.2. Configuration Available optional signals HRNM units have the following signals that are described in the following table. These signals are set up through the PCB of the outdoor unit. • Input signals Ind. Input signal Application Port Nº...
Page 264 Available optional functions Service Manual Programming The optional signals are programmed through the PCB of the outdoor unit. Setting of the optional signals Input setting 1 Factory setting   The optional signals of the outdoor unit are set up from the CN1, 1-2 PCB of the outdoor unit and push switches PSW1, PSW2 and PSW3...
Page 265 Available optional functions Service Manual 5.3.3. Description of optional input signals. • Fixing operation mode (heating / cooling) This input function is fixed in terminals CN1 or CN2 of the PCB of the outdoor unit, to use it as a cooling and heating mode. CN1 must be set up as follows. Short circuit between the terminals 1 and 2 of CN1: set heating mode.
Page 266 Available optional functions Service Manual 5.3.4. Description of optional output signals • Operation signal () This optional signal is used to pick up the operation signal. It can be used to turn on or off complementary units of the air- conditioning system,such as fans, humidifiers, etc. Connect the cabling and use the materials as shown in section 5.3.1.
Page 267 Available optional functions Service Manual     Night shift Not available Fixing of demand Not available function PSW1 SET* PSW2 PSW3 PSW1 Available  SET* PSW2 PSW3 Available  Defrost condition Not available J Wave function Not available setting PSW1 SET*...
Page 268 Available optional functions Service Manual • Fixing of demand function This function regulates the running current of the outdoor unit. If the demanded current is above the set current, the indoor unit capacity is reduced. The running current can be regulated both from internal signal. The capacity regulation is 50%, 75%, 100%.
Page 269 Available optional functions Service Manual • Night-shift (low noise) When you set the operation mode to night mode (low noise), which is used especially during the nighttime, the cooling capacity is decreased to 60%. You should use the night shift operation only when the remaining cooling capacity can supply the requested temperature.
Page 270 Available optional functions Service Manual • Optional functions (jumper) – New working range temperature in cooling mode (only for RAS-8~12HRNM). When this function is activated, the working range in cooling mode will increase until –15ºC. (Not available the individual indoor control). To activate this option the jumper JP1 of the outdoor unit PCB1 must be cut. –...
Page 271 Available optional functions Service Manual 5.4. oPTIoNAl FUNCTIoNS AVAIlABlE THRoUGH THE REMoTE CoNTRol SWITCH 5.4.1. optional function setting The remote control switch is changed to the optional setting mode by the following procedures. Programming with the PC-ART The optional signals are programmed using the remote control switch. • Programming and setting mode Make sure the unit is stopped.
Page 272 Available optional functions Service Manual • Changing the optional signals and setting conditions a. At the optional setting mode, the indication on the remote control switch is changed as shown below.  The indications of “ADDS” and “RN” are turned OFF.  The setting condition of the optional function is indicated in the segments of the time indication of the timer setting. ...
Page 273 Available optional functions Service Manual • Setting items of the optional functions legend Available Not available —— Not used Item. optional functions Setting Contents of parts Content Not available Removal of heating This function is used to eliminate the b temperature calibration 4 °C shift. Available Not available Circulator function at heating...
Page 274 Available optional functions Service Manual Item. optional functions Setting Contents of parts Content Cancelling of enforced 3 This function is used to cancel Not available minutes minimum operation the “enforced 3 minutes minimum Available time of compressor operation time of compressor”. Control by indoor suction thermistor Control by thermistor of remote control This function is used to control the...
Page 275 Available optional functions Service Manual Item. optional functions Setting Contents of parts Content Not available This function can set the gas sensor (Econofresh) Gas sensor input 01, 02 Available Std. (KPI) Precooling/preheating This function delays the start up of 30 minutes period the total heat exchanger operation.
Page 276 Available optional functions Service Manual 5.4.2. optional functions of the remote control switch Removal of heating temperature calibration (b) This function is used when the temperature settings of the remote control switch and the suction air temperature of the indoor unit are required to be equal. In standard heating operation, the suction air temperature is higher than the room temperature, therefore the suction air temperature is calibrated at –...
Page 277 Available optional functions Service Manual Fixing the operation mode (b5) This function is used when changes in operation modes are not required. When this function is valid, the operation mode that has been set cannot be changed. Fixing of setting temperature (b6) This function is used when changes in setting temperature are not required. When this function is valid, the setting temperature that has been set cannot be changed.
Page 278 Available optional functions Service Manual Not prepared (C) Drain pump in heating (when the humidifier is installed) (C4) This function is used to operate the drain pump in heating operation. High speed (C5) This function is used to increase the fan speed due to the high ceiling. (Only available for RCI and RCD Units). In case of RPI units, this setting is used to select the static pressure.
Page 279 Available optional functions Service Manual Power supply oN/oFF 1 (d) This function is used to start and stop the unit according to the power supply ON/OFF. When this function is used in the condition that there is no person to operate the unit, make the system with monitoring for disaster prevention. ...
Page 280 Available optional functions Service Manual Nor prepared (d7) Ventilation mode (KPI) (E) This function is used to set the ventilation mode of the total heat exchanger. The setting condition and the ventilation mode are as shown below. Setting condition ↓ Ventilation mode Contents of parts Selecting effective ventilation mode (total heat exchanging ventilation or bypass...
Page 281 Available optional functions Service Manual  note - I n case that the setting airflow mode by the remote control switch is “HIGH”, the airflow of the total heat exchanger is “HIGH” even when this function is set. With humidifier (indication only) (KPI) (E) Not prepared. Precooling/preheating period (KPI) (E4) This function is used to delay the start-up of the total heat exchanger operation. The setting condition and the delay period of operation start-up are as shown below. Setting condition ↓...
Page 282 Available optional functions Service Manual Fan operation Control at Cooling Thermo oFF (Eb) This function is used to control odor diffusion and humidity level indoor fan speed at cooling thermo-OFF. Setting Condition Fan Operation at Thermo-OFF Operation at Setting Fan Speed SLOW Forced Thermo-oN Stoppage at Cooling (EC) This function is used to stop operation by forced thermo-ON when cooling operation is stopped.
Page 283 Available optional functions Service Manual Temperature lock (f9) This function is used to lock the temperature. The setting condition is showing below Setting condition Contents of parts Not available Available 3Fan lock (fA) This function is used to lock the fan. The setting condition is showing below Setting condition Contents of parts...
Page 284 Available optional functions Service Manual Heating temperature range limit (fd) This function is used to set the the temperature range in heating mode. This function allows reducing the Heating range, to configurate trough the remote control switch. The setting condition is showing below Setting condition Contents of parts Not available...
Page 285 Available optional functions Service Manual • Optional setting elements Code Element Setting 00: Normal (temperature setting +4 °C) Cancelling heating temperature setting 01: Cancelled (temperature setting) b 02: Temperature setting +2 ºC *1 00: Off Automatic cooling/heating mode 01: On 00: Off Indoor fan increase 01: High 1 02: High 2...
Page 286 Available optional functions Service Manual 5.6. oPTIoNAl FUNCTIoNS AVAIlABlE THRoUGH WIRElESS REMoTE CoNTRol SWITCH (PC-lH3A + RECEIVER) You can adjust the following optional functions with the DIP switches of the receiver. PC-RlH8/9/11 DIP switch optional function Setting of sub receiver part Identifying the indoor unit y(1) ...
Page 287 Test run Service Manual TEST RUN CoNTENTS Test run ............................6-1 6.1. Checking procedure before the test run ..................6-2 6.2. Test run procedure using the remote control switch ..............6-4 6.3. Test run procedure using the wireless remote control switch ............6-5 6.4. Test run procedure from the outdoor unit side ................6-7 6.5.
Page 288 Test run Service Manual 6.1. CHECKING PRoCEDURE BEFoRE THE TEST RUN When you have finished the installation, perform the test run according to the following procedure. After performing the test run, hand over the system to the customer. Perform the test run of the indoor units one by one in order. Make sure that the electrical wiring and the refrigerant piping are correctly connected.
Page 289 Test run Service Manual  note - Make sure that the field-supplied electrical components (main switch fuse, fuse-free breaker, earth leakage breaker, wires, conduit connectors and wire terminals) have been properly selected according to the electrical data in the technical catalog of the unit. Also, make sure that the field-supplied electrical components comply with the national codes and the local codes. - Use the shielded cables for the field wiring in order to avoid the electrical noise. (The length of the shielded cable should be less than 1000m. The size of shielded cable should comply with the local codes.) - Make sure that the terminals for the power supply wiring (“L1” to “L1” and “N” to “N” of each terminal board for AC380-415V. “R” to “R” and “T” to “T” of each terminal board for AC220V) and the terminals for the intermediate wires between the indoor unit and the outdoor unit (Operating Line: terminals of each terminal board for DC12V) coincide correctly. Otherwise, you may damage some components. - If the KPI is connected to the same remote control switch as an indoor unit, the indoor unit will not perform the test run. You need to disconnect the KPI from the installation. - Check to ensure that the crankcase heater is turned ON for more than 4 hours. The operation is not available within 4 hours after turning ON the power supply. - Check to ensure that the main source has been ON for more than 12 hours to warm the compressor oil by the oil heater. - Check to ensure the operating temperature: Cooling operation: Indoor DB21.5 ºC and above, Indoor WB16 ºC and above, Outdoor DB0 ºC and above.
Page 290 Test run Service Manual 6.2. TEST RUN PRoCEDURE USING THE REMoTE CoNTRol SWITCH Turn ON the power source of the indoor units and the outdoor  units Operation Set the TEST RUN mode by means of the remote control switch. Counting Press the MODE switch and the OK switch simultaneously for number of the...
Page 291 Test run Service Manual 6.3. TEST RUN PRoCEDURE USING THE WIRElESS REMoTE CoNTRol SWITCH  note - If the wired remote control switch is used or if multiple units (SET-FREE, DC INVERTER and utopia series) are operating simultaneously, you cannot perform the test run by means of the remote control switch. If that is the case, perform the test run by means of the wired remote control switch. 1. Perform the test run after completing the installation. a) Set the batteries for the remote control switch. b) Turn ON the power source of the indoor units and the outdoor units.
Page 292 Test run Service Manual b) Set the louver angle by pressing the LOUVER switch. 6. Stop the test run (normal) a) The test run stops automatically after two hours. b) You stop the test run by pressing the RUN/STOP switch again. After the test run has finished, check that the red RUN LED and the green TIMER LED turn OFF.
Page 293 Test run Service Manual 6.4. TEST RUN PRoCEDURE FRoM THE oUTDooR UNIT SIDE The test run procedure from the outdoor unit side is shown below. You can set this DIP switch while the power source is ON. • Setting of dip switch (before shipment) DSW1 Cooling: Pin 1 ON Heating: Pin 1, 2 ON Cooling intermediate season:...
Page 294 Test run Service Manual 6.5. CHECK lIST • Check list on test run MODEL: SERIAL No. COMPRESSOR MFG. No. CUSTOMER’S NAME AND ADDRESS: DATE: 1. Is the rotating direction of the indoor coil fan correct? 2. Is the rotating direction of the outdoor coil fan correct? 3.
Page 295 Test run Service Manual • Normal operation pressure You can check the excess or the deficiency of the refrigerant in comparision with the following charts and actual pressure measurement. The following checking procedure is useful during test run and maintenance work. • Model RAS-8HRNM Cooling operation Heating operation Discharge pressure Pd (MPa)
Page 296 Test run Service Manual • Model RAS-10HRNM Cooling operation Heating operation Discharge pressure Pd (MPa) Discharge pressure Pd (MPa) Oudoor unit temp. (DBºC) Indoor unit temp. (DBºC) Outdoor unit inlet temp. (WBºC) Indoor unit inlet temp. (WBºC) Suction pressure Ps (MPa) Suction pressure Ps (MPa) Indoor unit temp.
Page 297 Test run Service Manual • Model RAS-12HRNM Cooling operation Heating operation Discharge pressure Pd (MPa) Discharge pressure Pd (MPa) Oudoor unit temp. (DBºC) Indoor unit temp. (DBºC) Indoor unit inlet temp. (WBºC) Outdoor unit inlet temp. (WBºC) Suction pressure Ps (MPa) Suction pressure Ps (MPa) Oudoor unit temp.
Page 298 Test run Service Manual • RAS-(3~6)H(V)RNME Cooling operation Heating operation Discharge pressure Pd (MPa) Discharge pressure Pd (MPa) Outdoor unit temp. (DB ºC) Indoor unit temp. (DB ºC) ( * ) Indoor unit inlet temp. (WBºC) Suction pressure Ps (MPa) Outdoor unit inlet temp.
Page 299 Test run Service Manual  note - The above curves indicate pressures under the following conditions: - Indoor ed: HIGH Fan Spe - Indoor total capacity: 100% compared with the capacity of the outdoor unit. (Connected 1 indoor unit) - Piping length: 7.5m (main piping: 5m, branch piping: 2.5m x 4) - Do not use the above data for the refrigerant charge procedure. These data should be used as a reference for the checking of operating conditions. - Nominal Pd and Ps Indoor unit combination: Nominal value (MPa) 2.76 2.74 2.76 2.77 2.77 Cooling 0.89 0.84 0.84 0.85 0.85 3 HP 2.56 2.54 2.56 2.57 2.57 Heating...
Page 300 Test run Service Manual • Check list on compressor CLIENT: MODEL: DATE Serial No.: Production date: Checker: Check item Check method Result Remarks (1) Is wire of thermistor correctly connected by Is THM9 correctly connected? viewing? THM9: Discharge gas (2) Check to ensure the 7-segment indication thermistor of Td when comp.
Page 301 Test run Service Manual • Additional information for “Check list on compressor” Check item Additional information (mechanism of compressor failure) The liquid refrigerant return volume to the compressor is controlled by the discharge gas temperature Td when compressor is operating. If Td thermistor is disconnected, the liquid refrigerant return volume 1 &...
Page 302 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 303 Troubleshooting Service Manual TRoUBlESHooTING CoNTENTS 7.1. Initial troubleshooting ........................7-2 7.1.1. Checking using the 7-segment display ....................7-2 7.1.2. Failure of the power supply to the indoor unit and the remote control switch ........7-3 7.1.3. Abnormal transmission between the remote control switch and the indoor unit ........7-4 7.1.4.
Page 304 Troubleshooting Service Manual 7.1. INITIAl TRoUBlESHooTING 7.1.1. Checking using the 7-segment display • Simple checking procedure using the 7-segment display 1. Turn on all the indoor units which are connected to the outdoor unit. 2. Turn on the outdoor unit 3. Auto-addressing starts. (Outdoor unit printed circuit board PCB 1) During the auto-addressing, you can check the following items using the 7-segment display of the outdoor unit.
Page 305 Troubleshooting Service Manual 7.1.2. Failure of the power supply to the indoor unit and the remote control switch • The LED and the LCD are not indicated. • Not operated If the fuses are blown out or a breaker is activated, investigate the cause of the overcurrent and take the necessary action.
Page 306 Troubleshooting Service Manual 7.1.3. Abnormal transmission between the remote control switch and the indoor unit • RUN LED on the remote control switch: Flickering every 2 seconds. Action Phenomenon Cause Check item (Turn oFF the main switch) Disconnection or insufficient contacting Check the cable and the Repair the cable or connect the of the remote control cable connections...
Page 307 Troubleshooting Service Manual 7.1.4. Abnormal operation of the devices Action Phenomenon Cause Check item (Turn oFF the main switch) Measure the coil Disconnected coil resistance using the tester Failure of the indoor unit Replace the indoor unit fan motor fan motor Measure the insulation Burnt-out coil resistance...
Page 308 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Check the setting condition of "remote control thermostat" using the optional setting Setting and control: "00": Control using the indoor thermistor for the suction air "01": Control using the If the thermostat of the remote thermostat of the remote...
Page 309 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Failure of the thermistor Check the thermistor Replace or correctly Failure of the discharge using the self-check mode connect the wiring when it air temp.
Page 310 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Indoor cool load is greater than the cooling capacity Calculate the cool load Use a bigger unit Correctly charge the Gas leakage or shortage Measure superheat refrigerant after repairing of refrigerant...
Page 311 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Clogging of the outdoor Remove the clogging unit heat exchanger? Obstacles at the inlet or the outlet of the outdoor Remove the obstacles Insufficient air flow to unit heat exchanger the outdoor unit heat...
Page 312 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Indoor heat load is greater than the heating Replace the unit with a bigger Calculate the heat load capacity unit Gas leakage or Correctly charge the insufficient refrigerant Measure superheat...
Page 313 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Check the filter for a Remove the clogging clogging Insufficient air flow to Check for any obstacles the indoor unit heat at the inlet or the outlet of Remove the obstacles exchanger...
Page 314 Troubleshooting Service Manual Abnormal operation of the devices (Cont.) Action Phenomenon Cause Check item (Turn oFF the main switch) Remove the foreign Foreign particles inside of the fan casing Visually inspect it particles Adjust the position of the Indoor unit fan runner is hitting the casing Visually inspect it fan runner Adjust the position of the...
Page 315 Troubleshooting Service Manual 7.2. TRoUBlESHooTING PRoCEDURE 7.2.1. Alarm code If the RUN LED flickers for 2 seconds, there is a failure in the transmission between the indoor unit and the remote Abnormal refrigerant Abnormal indoor control switch. cycle no. unit no. Possible causes are: –...
Page 316 Troubleshooting Service Manual Code Category Content of abnormality leading cause Overload cooling O.U. pipe thermistor temp. is higher than 55ºc and the comp. (Possibility of high pressure device top temp. is higher than 95ºc when O.U. protection device is activation) activated.
Page 317 Troubleshooting Service Manual 7.2.2. Troubleshooting by alarm code Alarm code Description 0 Activation of the safety device in the indoor unit • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 318 Troubleshooting Service Manual Alarm code Description 0 Activation of the safety device in the outdoor unit • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 319 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF the main switch) Check the heat exchanger Remove the dust or the for dust or for clogging clogging Check the air filter for dust Remove the dust Insufficient air flow to the heat exchanger Check for any obstacles at (outdoor heat exchanger during the cooling the inlet or the outlet of the...
Page 320 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF the main switch) Check for clogging Remove the clogging Check the connect wiring and Replace the connector the connectors Faulty or malfunction of the Check the operation sound Replace the coil expansion valve from the coil Check the discharge gas...
Page 321 Troubleshooting Service Manual Alarm code Description 0 Abnormal transmission between the indoor units and the outdoor unit • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 322 Troubleshooting Service Manual Is DSW5-1P (terminal Set it correctly resistance on PCB1) ON? Is the voltage between the terminal Check the fuses of the Is LED1 (red) on "1" and "3" of PCB1 220V or 240V? *2) outdoor unit power supply PCB1 ON? Remove CN8 of Is connector...
Page 323 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF the main switch) Measure the voltage using the Power failure or no power supply Supply the power tester Check the insulation material for Remove the short circuit and Short circuit between wires breaks replace the fuse Measure the insulation...
Page 324 Troubleshooting Service Manual Alarm code Description Abnormal transmission between Inverter PCB and outdoor PCB1 • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 325 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF the main switch) Between control PCB, inverter Check the continuity of wires. PCB and FANM Disconnected wires, insufficient Replacing wires, repairing, Check for looseness of the contacting or incorrect tightening screws and incorrect connection screws.
Page 326 Troubleshooting Service Manual Alarm code Description Code abnormal operation of picking up phase signal • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 327 Troubleshooting Service Manual Alarm code Description Excessively low voltage or excessively high voltage for the inverter (RAS-8~12HRNM) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 328 Troubleshooting Service Manual Alarm code Description Excessively low voltage or excessively high voltage for the inverter (RAS-3~6HRVNME) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 329 Troubleshooting Service Manual Alarm code Description Excessively low voltage or excessively high voltage for the inverter (RAS-4~6HRNME) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 330 Troubleshooting Service Manual Alarm code Description Decrease of Discharge Gas Superheat • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 331 Troubleshooting Service Manual Alarm code Description Excessively High Discharge Gas Temperature at the Top of Compressor Chamber • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 332 Troubleshooting Service Manual Alarm code Description Abnormal operation of thermistor for the indoor unit air inlet temperature  (air inlet thermistor) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 333 Troubleshooting Service Manual Alarm code Description Abnormal operation of the thermistor for the indoor discharge air  temperature (air outlet thermistor) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 334 Troubleshooting Service Manual Alarm code Description Abnormal operation of the thermistor for the indoor unit heat exchanger  liquid pipe temperature (freeze protection thermistor) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 335 Troubleshooting Service Manual Alarm code Description Abnormal operation of the thermistor for the indoor unit heat exchanger gas 4 pipe temperature (gas piping thermistor) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 336 Troubleshooting Service Manual Alarm code Description 5 Abnormal operation of thermistor for fresh outdoor air (Econofresh) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 337 Troubleshooting Service Manual Alarm code Description Activation of the protection device for the indoor fan motor 9 (except RCI, RCIM and RPK) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 338 Troubleshooting Service Manual Alarm code Description 9 Activation of the protection device for the indoor fan motor (RCI, RCIM) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. and the alarm code is indicated on the display of the outdoor unit PCB.
Page 339 Troubleshooting Service Manual Alarm code Description 9 Activation of the protection device for the indoor fan motor (RPK) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 340 Troubleshooting Service Manual Alarm code Description Abnormality of Thermistor for Discharge Gas Temperature 0 (Compressor Thermistor) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 341 Troubleshooting Service Manual Alarm code Description Abnormal operation of the thermistor for the outdoor temperature  (outdoor unit ambient thermistor) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 342 Troubleshooting Service Manual Alarm code Description Abnormal operation of the thermistor for the evaporating temperature during 4 the heating process (outdoor unit) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 343 Troubleshooting Service Manual Alarm code Description Incorrect capacity setting or combined capacity between indoor units and  outdoor unit • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 344 Troubleshooting Service Manual Alarm code Description 5 Incorrect indoor number setting • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 345 Troubleshooting Service Manual Alarm code Description Abnormality of protective circuit for protection 8 (outdoor unit) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 346 Troubleshooting Service Manual Alarm code Description Cooling overload 4 (high pressure switch will be activated) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 347 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF main switch) Clogging of heat exchanger? Remover clogging Check for dust on air filter Remove dust Insufficient air flow to heat Check the service space Secure service space exchanger of outdoor unit Check for speed: Outdoor fan: cooling Replace fan motor if faulty...
Page 348 Troubleshooting Service Manual Alarm code Description Heating overload 4 (high pressure switch will be activate) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 349 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF main switch) Reduce heat load or use a Calculate heat load. bigger unit. Check for hot air near the ceiling. Make good circulation. Excessively high temp. air to indoor unit heat exchanger Check for short circuited air.
Page 350 Troubleshooting Service Manual Alarm code Description Activation to protect system from excessively low suction pressure (protection from vacuum operation) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 351 Troubleshooting Service Manual Action Phenomenon Cause Check item (Turn oFF main switch) – Faulty freeze protection Fault Check resistance. Replace thermistor if faulty. – Thermistor of indoor unit – Evaporating thermistor of outdoor unit Incorrect connection Check wiring to PCB. Repair wiring and connections.
Page 352 Troubleshooting Service Manual Alarm code Description overcurrent protection activation Turn OFF power and disconnect U, V, W from Is there any cause of compressor terminals. Check the Restart operation. instantaneous voltage Turn ON #1 of DSW1 on PCB2 compressor. Does it trip soon? decrease? (IPM or dipIPM) and restart.
Page 353 Troubleshooting Service Manual Alarm code Description 5 Abnormal operation of the current transformer (0A detection) • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 354 Troubleshooting Service Manual Alarm code Description Protection activation of IPM or DipIPM and PCB2 5 (RAS-8~12HRNM and RAS-3~6HVRNME) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 355 Troubleshooting Service Manual Alarm code Description 5 Activation for protecting the ISPM (RAS-3~6HRNME) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 356 Troubleshooting Service Manual Alarm code Description Increase in the inverter fin temperature • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 357 Troubleshooting Service Manual Alarm code Description IPM or PCB2 abnormality • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 358 Troubleshooting Service Manual Alarm code Description Abnormality of fan motor protection (DC fan motor) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 359 Troubleshooting Service Manual Alarm code Description Abnormal operation of thermistor for the KPI (room temperature thermistor) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 360 Troubleshooting Service Manual Alarm code Description Abnormal operation of thermistor for the KPI (outdoor temperature thermistor) • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 361 Troubleshooting Service Manual Alarm code Description Compressor protection • This alarm code is displayed when one of the following alarms occurs three times within six hours. If the outdoor unit operates continuously without removing the cause of the alarm, the compressor may be seriously damaged. Alarm code Content of abnormality Tripping of protection device in outdoor unit...
Page 362 Troubleshooting Service Manual 7.2.3. Troubleshooting in check mode Use the “OK” switch of the remote control in the following cases: 1. When the RUN LED is flickering. 2. To trace back the cause of the malfunction after restarting from the stoppage while the RUN LED is flickering.
Page 363 Troubleshooting Service Manual Although the wireless controller is used for the wall type  note indoor unit with the built-in receiver part, you can check the alarm code by connecting the PC-P2HTE. - T he unit does not operate by pressing the operation switch. - T he above function is available only when the alarm occurs. Suction grille - T he PCB check using the remote control switch is not available.
Page 364 Troubleshooting Service Manual Indication of micro-computer input/output Part name relay Micro-computer input/ C  YH2: Relay for drain pump (MD) and/or dew heater (EHW). output in indoor unit 52H: Relay for electric heater (CEH) Y21: Relay for 4-way valve Y52C: Relay for compressor Micro-computer input/ C...
Page 365 Troubleshooting Service Manual Compressor pressure/frequency indication Discharge pressure HI 8 (high) (x 0.1 MPa) This is an indication for internal information for the remote Suction pressure (low) H 04 control switch. This does not have any specific meaning (x 0.01 MPa) H...
Page 366 Troubleshooting Service Manual • Contents of the check mode 2 When more than three indoor units are connected to one remote control switch, the latest data of only the first three indoor units that are connected serially are displayed. If you press the part " ...
Page 367 Troubleshooting Service Manual Expansion opening indication Corresponds to check mode 1 “H” Indoor unit expansion 9d 0 valve opening (%) Corresponds to check mode 1 “H” Outdoor unit expansion 9E  valve mv1 opening (%) Estimated electric current indication Corresponds to check mode 1 “H4” Compressor running 9F 0 The total value is displayed when several compressors are running...
Page 368 Troubleshooting Service Manual 7.2.4. Troubleshooting using the 7 segment display • Simple checking by 7-segment display Turn ON all indoor inits connected During auto-addressing, the following items can be checked using the to the outdoor unit outdoor unit’s on-board 7-segment LED display: Turn ON the outdoor unit 1.
Page 369 Troubleshooting Service Manual Cause of inverter stoppage (11) Cause of indoor unit stoppage (20) Indication Contents Indication Contents IPM, ISPM, dipIPM error  Operation OFF, Power OFF Instantaneous over current Thermo-OFF  0 Inverter fin thermistor protection activation Alarm  0...
Page 370 Troubleshooting Service Manual 7.2.5 Troubleshootong using the flashing alarm LEDs for RPK-FSNM The red LED located on the panel indicates the following alarms: Code Cause Indication Alarm 02 Unit protection This alarm is activated when the blinks sequence is two times ON/two seconds OFF Alarm 03 Transmission error This alarm is activated when the blinks sequence is three times ON/two seconds OFF Inverter outdoor Alarm 04...
Page 371 Troubleshooting Service Manual • Protection control code on 7-segment display 1. Protection control code is displayed on 7-segment when a protection control is activated. 2. Protection control code is displayed while function is working, and goes out when released. 3. When several protection control are activated, code number with higher priority will be indicated (see below for the priority order).
Page 372 Troubleshooting Service Manual • Activating condition of protection control code For following the conditions as the temperature change, etc., the control of frequency, etc. is performed to prevent the abnormal conditions by the protection control. The activating conditions of protection control are shown in the table below. Code Protection control Activating condition...
Page 373 Troubleshooting Service Manual 7.3. PRoCEDURE FoR CHECKING EACH MAIN PART 7.3.1. Self-checking procedure of PCB using the remote control switch Use the following troubleshooting procedure for testing the PCB in the indoor unit and the outdoor unit: Press Stop operation Press both switches for three PCB check mode...
Page 374 Troubleshooting Service Manual If you are using a wireless remote control switch with the built-in receiver part of the wall-type indoor unit and you need to perform the above checking, perform the following procedure: 1. Turn OFF the power supply. 2.
Page 375 Troubleshooting Service Manual 7.3.2. Self-checking procedure of the remote control switch Cases where the CHECK switch is used: 1. If the remote control switch displays a malfunction. 2. For the regular maintenance check. lCD indication Indicating Turn ON the power source period (sec.) Simultaneously press the following...
Page 376 Troubleshooting Service Manual The LCD changes as shown below. If the indicators “--” or “FF” are displayed at the “A” part, the remote control The detected temperature of thermostat is abnormal. the remote control thermostat is displayed at the (A) part in the figure below.
Page 377 Troubleshooting Service Manual 7.3.3. Self-checking procedure of the indoor unit PCB (only for RPK) • Self-checking procedure using the relays on the indoor unit PCB – To check the abnormal operation on the indoor unit PCB due to a malfunction. – To check the abnormal operation on the indoor unit PCB according to the results of the checking procedure using the CHECK switch on the remote control switch and the self-checking function.
Page 378 Troubleshooting Service Manual 7.3.4. Procedure of checking other main parts 1. High voltage discharge work for replacing parts warning - Perform this high voltage discharge work to avoid an electric shock Procedure: a. Turn OFF the main switches and wait for three minutes. Check to ensure that no high voltage exists. If LED201 is ON after start-up and LED201 is OFF after turning OFF power source, the voltage will decrease lower than DC50V.
Page 379 Troubleshooting Service Manual Remove all the terminals of the transistor module before check. If items (a) to (d) are performing and the results are satisfactory, the transistor module is normal. Measure it under 1kΩ range of a tester. Do NOT use a digital tester. a.
Page 380 Troubleshooting Service Manual 3. Checking method of diode module Outer appearance and internal circuit of diode module If items (a) to (d) are performing and the results are satisfactory, the diode module is normal. Measure it under 1kΩ range of a tester. Do NOT use a digital tester. (a) By touching the + side of the tester to the + terminal of diode module and the - side of tester to the ~ terminals (3 NOs.) of the diode module, measure the resistance.
Page 381 Troubleshooting Service Manual • Fault diagnosis of DC fan motor Fault diagnosis of DC fan motor. About fan motor fault diagnosis: When ISPM/DIP-IPM is faulty and Alarm 53 appears, the fan motor may also be damaged. To prevent ISPM/DIP-IPM damage which may result from operation combined with a faulty fan motor, check also if the fan motor is not damaged when ISPM/DIP-IPM is replaced ...
Page 382 Troubleshooting Service Manual Wire color for checking (Normal value) Ω Model Motor model Red-black White-black Yellow-black Blue-black RAS-4H(V)RNME (upper) SIC-65FV-D840-1 1M or greater 26~50k 168~312k 1M or greater RAS-(4~6)H(V)RNME (lower) RAS-3HVRNME RAS-(5-6)HVRNME (upper) SIC-68FV-D851-7 1M or greater 42-78k 168~312 1M or greater RAS-(5-6)HRNME (upper) RAS-(8~12)HRNM (upper) SIC-61FV-D8138-1 1M or greater 42-78k 168~312...
Page 383 Troubleshooting Service Manual • Checking procedure for the ISPM Rectification parts of internal circuit of ISPM (common) Remove all the terminals of the ISPM before check. If items (a) to (h) are performed and the results are satisfactory, ISPM is normal. Measure it under 1 kΩ range of a tester.
Page 384 Troubleshooting Service Manual • Checking procedure for the electronic expansion valve Outdoor unit electronic expansion Indoor unit electronic expansion valve valve Check the liquid pipe temperature during the It is abnormal if the liquid pipe pressure heating process. Locked with fully closed does not increase during the cooling It is abnormal if the temperature does not process.
Page 385 Troubleshooting Service Manual • Checking procedure for the electrical coil parts Abbreviations used for colors: Black Brown Yellow Green Blue Grey Orange White Fan motor for the indoor units: Indoor units Power consumption Electrical wiring diagram Wiring No. Resistance (Ω) RCI-1.5FSN2E RCI-2.0FSN2E 56 W DC Motor — — RCI-3.5FSN2E RCI-3.0FSN2E RCI-3.5FSN2E RCI-4.0FSN2E 108 W DC Motor —...
Page 386 Troubleshooting Service Manual Indoor units Power consumption Electrical wiring diagram Wiring No. Resistance (Ω) 32.10 BLK - RED RPC-4.0FSN2E 24.50 RED - YEL RPC-5.0FSN2E 180 W 24.50 YEL - GRY RPC-6.0FSN2E 44.70 RED - WHT at 25 ºC 23.60 BLK - RED 23.50 RED -...
Page 387 Troubleshooting Service Manual Indoor units Power consumption Electrical wiring diagram Wiring No. Resistance (Ω) 214.40 BLK - RED RPIM-0.8FSN2E 29.90 RED - BLU RPIM-1.0FSN2E 30.60 BLU - GRY RPIM-1.5FSN2E 61.30 RED - WHT at 20 ºC RPK-1.0FSN2M RPK-1.5FSN2M 20 W RPK-2.0FSN2M DC Motor —...
Page 388 Troubleshooting Service Manual • Other parts Part name Unit models Model code Resistance (Ω) RCI-1.0~6FSN2E 139.00 RCIM-1.5~2.5FSN ADP-1403 at 21 ºC RPI-2.0~6.0FSN2E Drain up motor 347.00 RCD.1.0~6.0FSN KJV-1004 at 20 ºC 1540.00 Solenoid gas for gas bypass (3/8) 105-52-52 (50Hz) at 20 ºC 1250.00 105-52-51 (60Hz) at 20 ºC...
Page 389 Troubleshooting Service Manual • Checking procedure for the compressor CHECK LIST ON COMPRESSOR Client: Model: Date: Serial No. Production date: Checker: Check item Check method Result Remarks 1. Is wire of thermistor correctly connected by Is THM9 correctly connected? viewing? THM9: discharge gas 2. Check to ensure the 7-segment indication of thermistor Td when comp.
Page 390 Troubleshooting Service Manual Additional Information for “CHECK lIST oN CoMPRESSoR” Check item Additional information (mechanism of the compressor failure) The liquid refrigerant return volume to the compressor is controlled by the discharge gas temperature Td when compressor is operating. If Td thermistor is disconnected, the liquid refrigerant return volume 1 &...
Page 391 Spare Parts Service Manual SPARE PARTS CoNTENTS 8.1. Indoor units ...........................8-2 8.1.1. RCI-(1.5~6.0)FSN2E ..........................8-2 8.1.2. RCIM-(1.5-2.0)FSN2 ..........................8-3 8.1.3. RCD-(1.5~3.0)FSN2 ..........................8-4 8.1.4. RCD-(4.0~6.0)FSN2 ..........................8-5 8.1.5. RPC-(2.0~6.0)FSN2E ...........................8-6 8.1.6. RPIM-(1.5)FSN2E ..........................8-7 8.1.7. RPI-(1.5)FSN2E ............................8-8 8.1.8. RPI-(2.0~3.0)FSN2E ..........................8-9 8.1.9. RPI-(4.0~6.0)FSN2E ...........................8-10 8.1.10. RPI-(8.0~10.0)FSNE ........................... 8-11 8.1.11.
Page 392 Spare Parts Service Manual 8.1. INDooR UNITS 8.1.1. RCI-(1.5~6.0)FSN2E Optional (*) Electrical Parts Drawing Number: EPN-0802A Part name Remarks Part name Remarks U00A Terminal board Turbo fan Fan runner U00B Terminal board Heat exchanger Assy U00C P-Spring U65A Spacer Remote control switch PC-P2HTE / PC-ART (optional) U65B CP cover...
Page 393 Spare Parts Service Manual 8.1.2. RCIM-(1.5-2.0)FSN2 Optional (*) Electrical parts Drawing number: EPN-0606A-3B Part name Remarks Part name Remarks Remote control swicth PC-P2HTE / PC-ART (optional) Runner U04A Fuse 0.5A for control circuit U41A/B Heat exchanger Assembly U04B Fuse 5A for power source Spacer For PCB U15A...
Page 394 Spare Parts Service Manual 8.1.3. RCD-(1.5~3.0)FSN2 (*) Electrical Parts Drawing Number: SPN200506 Part name Remarks Part name Remarks Fuse 5A for control circuit Spacer Capacitor 4/5 mF 440vac U71A Motor Fan motor 35W U15A Thermistor Thm1 air inlet U71B Motor Drain discharge mechanism U15B Thermistor...
Page 395 Spare Parts Service Manual 8.1.4. RCD-(4.0~6.0)FSN2 Electrical parts Drawing number: SPN200506 Part Name Remarks Part Name Remarks Fuse 5A for control circuit Plastic material U14A Capacitor 4mF 440vac U71A Motor 55W electrical box side U14B Capacitor 5mF 440vac U71B Motor 55W the other side U15A Thermistor...
Page 396 Spare Parts Service Manual 8.1.5. RPC-(2.0~6.0)FSN2E Optional (*) Electrical Parts Drawing number: EP-801-1A Part name Remarks Part name Remarks Terminal board Heat exchanger Assembly Remote control SW PC-P2HTE/PC-ART (optional) Coupling Capacitor 3µF/ 4,5µF/ 5µF/ 6µF/ U65A Spacer U15A Thermistor Liquid pipe (freeze protection) U65B Push spacer U15B...
Page 397 Spare Parts Service Manual 8.1.6. RPIM-(1.5)FSN2E Optional Electrical control box Air inlet Air outlet Location of electrical equipment E-BOX plate E-BOX plate Drain pump kit DU-M1E (optional accessory) Drawing number: EPN-0806A-1B Part Name Remarks Part Name Remarks U00A Terminal board Fan casing Remote control switch PC-P2HTE/PC-ART (optional)
Page 398 Spare Parts Service Manual 8.1.7. RPI-(1.5)FSN2E Optional Air inlet Electrical control box Air outlet Location of electrical equipment E-BOX plate E-BOX plate Drawing number: EPN-0806A-2B Part Name Remarks Part Name Remarks U00A Terminal board Fan casing Remote control switch PC-P2HTE/PC-ART (optional) Heat exchanger Assembly Electrical box...
Page 399 Spare Parts Service Manual 8.1.8. RPI-(2.0~3.0)FSN2E Optional Electrical control box Air inlet Air outlet Location of electrical equipment E-BOX plate E-BOX plate Drawing number: EPN-0806A-3B Part name Remarks Part name Remarks Terminal board Fan casing Remote control SW PC-P2HTE/PC-ART (optional) Heat exchanger Assembly Electrical box...
Page 400 Spare Parts Service Manual 8.1.9. RPI-(4.0~6.0)FSN2E Optional Air inlet Electrical control box Air outlet Location of electrical equipment E-BOX plate E-BOX plate Drawing number: EPN-0806A-4B Part name Remarks Part name Remarks Terminal board Heat exchanger Assembly Remote control SW PC-P1HE/PC-ART (optional) U65A Spacer For PCB fixing...
Page 401 Spare Parts Service Manual 8.1.10. RPI-(8.0~10.0)FSNE Optional (*) Electrical parts Drawing number: EPN0523A Part name Remarks Part name Remarks Terminal board U37A Fan casing assy L Left side runner & casing (only) Remote control switch PC-P2HTE/PC-ART (optional) U37B Fan casing assy R Right side runner &...
Page 402 Spare Parts Service Manual LOCATION OF SPARE PARTS IN THE UNIT MODEL: RPK-1.0FSN1M 8.1.11. RPK-1.5FSN2M RPK-1.5FSN1M LOCATION OF SPARE PARTS IN THE UNIT MODEL: RPK-1.0FSN1M RPK-1.5FSN1M U15B U71B U15B U71B U15C U71A U15C U71A U71C U15A U85B U71C U85A U15A U85B U85A U31A...
Page 403 Spare Parts Service Manual 8.1.12. RPK-2.0FSN2M Drawing number: EPN-0705A-1B Part name Remarks Part name Remarks Remote control switch PC-LH3A (optional) U31B Air filter L For left side U04A Fuse (For control circuit) Bearing U15A Thermistor Air inlet Fan runner Heat exchanger U15B Thermistor Air outlet...
Page 404 Spare Parts Service Manual 8.1.13. RPK-(2.5~4.0)FSN2M LOCATION OF SPARE PARTS IN THE UNIT FOR MODELS: RPK-2.5FSN2M, RPK-3.0FSN2M, RPK-4.0FSN2M. LOCATION OF SPARE PARTS IN THE UNIT FOR MODELS: RPK-2.5FSN2M, RPK-3.0FSN2M, RPK-4.0FSN2M. Drawing number: EPN-0705A PAGE 4/4 EPN-0705A-2B Part name Remarks Part name Remarks Remote control switch PC-LH3A (optional)
Page 405 Spare Parts Service Manual 8.1.14. RPF-(1.5~2.5)FSN2E Optional (*) Electrical Parts Drawing number: EPN-808A-1A Part name Remarks Part name Remarks Terminal board Runner Remote control switch PC-P2HTE/PC-ART Fan casing Exp. valve cord Heat exchanger Assembly Exp. valve cord U65A Spacer For fixing PCB Capacitor 2µF / 4µF U65B...
Page 406 Spare Parts Service Manual 8.1.15. RPFI-(1.5~2.5)FSN2E (*) Electrical parts Drawing number: EPN808A-2B Part name Remarks Part name Remarks Terminal board Air filter Remote control switch PC-ART Runner Exp. valve cord Fan casing Exp. valve cord Heat exchanger Assembly Capacitor 2µF / 4µF U65A Spacer For fixing PCB...
Page 407 Spare Parts Service Manual 8.2. oUTDooR UNITS 8.2.1. RAS-3HVRNME cycle and structural parts ” Drawing number: EPN0803A-1A Service Manual - SMGB0047 8-17 Outdoor units SMGB0047 rev.0 - 06/2008 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 408 Spare Parts Service Manual electrical parts ” Drawing number: EPN0803A-2A Sevice Manual - SMGB0047 8-18 SMGB0047 rev.0 - 06/2008 Outdoor units https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 409 Spare Parts Service Manual RAS-3HVRNME - Cycle and structural parts RAS-3HVRNME - Electrical parts Part name Remarks Part name Remarks U00A Terminal board U71A Fan motor U00B THM support D MG SW U01A Pressure SW Protection Oil heater U01B Pressure Sw Control 4 way valve Fuse...
Page 410 Spare Parts Service Manual 8.2.2. RAS-(4~6)HRNME cycle and structural parts ” Drawing number: EPN0803A-1A Sevice Manual - SMGB0047 8-20 SMGB0047 rev.0 - 06/2008 Outdoor units https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 411 Spare Parts Service Manual electrical parts ” Drawing number: EPN0803A-2A Service Manual - SMGB0047 8-21 Outdoor units SMGB0047 rev.0 - 06/2008 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 412 Spare Parts Service Manual RAS-(4~6)HRNME - Cycle and structural parts RAS-(4~6)HRNME - Electrical parts Part name Remarks Part name Remarks U00A Terminal board Compressor U01A Pressure SW Protection U71A Fan motor U01B Pressure Sw Control U71B Fan motor Fuse MG SW Capacitor 2700µf U74A...
Page 413 Spare Parts Service Manual 8.2.3. RAS-(4~6)HVRNME cycle and structural parts ” Drawing number: EPN0803A-1A Service Manual - SMGB0047 8-23 Outdoor units SMGB0047 rev.0 - 06/2008 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 414 Spare Parts Service Manual electrical parts ” Drawing number: EPN0803A-2A Sevice Manual - SMGB0047 8-24 SMGB0047 rev.0 - 06/2008 Outdoor units https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 415 Spare Parts Service Manual RAS-(4~6)HVRNME - Cycle and structural parts RAS-(4~6)HVRNME - Electrical parts Part name Remarks Part name Remarks U00A Terminal board Compressor U01A Pressure SW Protection U71A Fan motor U01B Pressure Sw Control U71B Fan motor Fuse 40A, 5/6 HP 50A MG SW U15A Thermistor...
Page 416 Spare Parts LOCATION OF S LOCATION OF SPARE PARTS IN THE UNIT Service Manual MODEL: RAS-8HRNM 8.2.4. RAS-(8~12)HRNM RAS-10HRNM RAS-12HRNM cycle and structural parts ” U77B U77E U30D U01B U01A U40A U01C U77B U77A U30C U30B U27A U27B U77C U21A U21B U77D U30A U15A...
Page 417 U14A ELECTRICAL EQ Spare Parts Service Manual electrical parts ” <3 380-415V/50Hz, ELECTRICAL EQUIPMENT U65D ELECTRICAL EQUIPMENT MODEL: RAS-8HRNM RAS-10HRNM MODEL: RAS-8HRNM RAS-12HRNM RAS-10HRNM <3 380-415V/50Hz, 3 380V/60Hz> RAS-12HRNM <3 380-415V/50Hz, 3 380V/60Hz> U15D U74A U74A View from View from P U14A View from P U65C...
Page 418 ELECTRICAL EQUIPMENT Spare Parts MODEL: RAS-8HRNM ELECTRICAL EQUIPMENT ELECTRICAL EQUIPMENT RAS-10HRNM Service Manual MODEL: RAS-8HRNM RAS-12HRNM MODEL: RAS-8HRNM RAS-10HRNM <3 220V/60Hz> electrical parts (cont) RAS-10HRNM ” RAS-12HRNM RAS-12HRNM <3 220V/60Hz> ELECTRICAL EQU <3 220V/60Hz> U82A <3 380-415V/50Hz, U82A U82A U74C U74C U74C U14A...
Page 419 Spare Parts Service Manual Part name Remarks Part name Remarks U01A Pressure Sw High pressure L-tank ass’y U01B Pressure Sw For control U65A Plastic material U01C Pressure Sw Low pressure U65B Plastic material Fuse 40A - 60A U65C Plastic material U14A Capacitor 4700µF...
Page 420 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 421 Servicing Service Manual SERVICING CoNTENTS 9.1. Outdoor unit RAS-3HVRNME ....................9-6 9.1.1. Removing service cover ........................9-6 9.1.2. Removing air outlet grille ........................9-6 9.1.3. Removing upper cover ..........................9-7 9.1.4. Removing outdoor fan motor ........................9-7 9.1.5. Removing the compressor ........................9-8 9.1.6. Opening electrical box (P-mounting plate) ..................9-11 9.1.7.
Page 422 Servicing Service Manual 9.3.13. Removing expansion valve .........................9-44 9.3.14. Removing solenoid valve ........................9-45 9.3.15. Removing electrical components ......................9-46 9.3.16. Removing inverter components ......................9-47 9.3.17. Removing diode module and transistor module ..................9-48 9.3.18. Removing other electrical components ....................9-49 9.4. RCI-(1.5~6.0)FSN2E ........................9-50 9.4.1.
Page 423 Servicing Service Manual 9.7.4. Removing the liquid and gas pipe themistors ..................9-72 9.7.5. Removing the fan parts ........................9-73 9.7.6. Removing the drain pump ........................9-73 9.7.7. Removing the float switch ........................9-74 9.7.8. Removing the air filter .........................9-74 RPIM 1.5 FSN2E ..........................9-75 9.8.
Page 424 Servicing Service Manual 9.12.4. Removing the printed circuit board (PCB) ..................9-104 9.12.5. Removing the thermistors for liquid pipe and gas pipe ..............9-104 9.13. KPI - Energy recovery ventilation units ..................9-105 9.13.1. Structure and parts names ........................9-105 9.13.2. Standard connection system and central station ................9-106 9.13.3.
Page 425 Servicing Service Manual danger - Before performing any of the service operations described in this chapter, turn all the main switches off and place security lockers or convenient warning indicators in order to prevent them from turning on accidentally. - I n case of blocked or stucked parts, use appropiated tools and eventually lubricants to release them. - I n case of sharped edged parts, as covers, use security gloves to avoid getting injured. - W hen performing brazing work, besides security gloves it is a must to wear convenient eye protection. - C heck and be sure that the LED201 (Red) on the inverter PCB is OFF for all electrical maintenance. - D o NOT touch the electrical components when the LED201 (Red) on the inverter PCB is ON to avoid electrical shock.  note - A ll compressors are connected by brazing. Check to ensure whether there are flammable things around or not when using a burner for pipe connections, if not, oil existing pipe inside may ignite.
Page 426 Servicing Service Manual 9.1. oUTDooR UNIT RAS-3HVRNME 9.1.1. Removing service cover Remove the main parts according to the following procedures.  note - T o reassemble perform the procedures in reverse. - T o prevent contamination of the refrigerant with water or foreign particles, do not expose open to atmosphere for long periods. - I f necessary, seal pipe ends using caps or tape. 1. Remove the five (5) fixing screws. 2.
Page 427 Servicing Service Manual 9.1.3. Removing upper cover Screws 1. Remove the eight (8) fixing screws. 2. Lift the upper cover upwards. 6. Fix the motor wire with the cable tie or the cord clamp. If not, 9.1.4. Removing outdoor fan motor it may cause the disconnection of the fan motor’s lead wire.
Page 428 Servicing Service Manual Fan components and technical features Power supply 230V/50Hz DPI IPM Fan motor DC fan motor PCN202 (1, 3) PCN202 (2, 3, 4) Screw for motor fixing DC Fan Motor M4 Screw with spacer x 4 9.1.5. Removing the compressor Upper cover 1.
Page 429 Servicing Service Manual Thermistor holder Holder Thermistor Thermistor fixing plate Rubber cap Th Thermistor Indication of terminal number Terminal box cover Compressor Compressor wires Details for compressor terminals Compressor Fix it with screw wires (3 wires)  note  warning - D o not expose the refrigerant cycle to the atmosphere for a long - A ll compressor pipes must be brazed to be connected to the period in order to avoid water and foreign particles entering into the...
Page 430 Servicing Service Manual  6. Remove the suction pipe and the discharge pipe from the note compressor. Isolate the wires and electrical components to protect them from the burner flame when brazing the - F ix the lead wire for the compressor firmly using a cable tie to aviod contacting the metal sheet sharp edges and the high temperature connection pipes. piping.
Page 431 Servicing Service Manual 9.1.6. O pening electrical box (P-mounting plate) Remove the service cover according to the section “Removing the service cover” in this chapter. Remove the six (6) screws fixing the electrical box. Open the P-mounting plate by rotating it to the left. danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 432 Servicing Service Manual 9.1.7. Removing reversing valve coil Remove the service cover according to the section “Removing service cover” in this chapter. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)” in this chapter.. danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 433 Servicing Service Manual 9.1.8. Removing expansion valve coil 1. Remove the service cover according to the section “Removing service cover” in this chapter.. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)”in this chapter . danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 434 Servicing Service Manual 9.1.9. Removing reversing valve reassemble the reversing valve by cooling the pipes first with wet cloth in order to avoid brazing material entering the 1. Remove the service cover and the rear service panel reversing valve. according to the section “Removing Service Cover” and the section “Removing lower part of service panel and rear 8.
Page 435 Servicing Service Manual 9.1.11. Removing solenoid valve 1. Remove the service cover and the rear service panel according to the sections “Removing Service Cover” and “Removing lower part of service panel and rear panel”, described in this chapter . 2. Collect the refrigerant from the check joint according to the section “Removing compressor”...
Page 436 Servicing Service Manual 9.1.12. Removing electrical components danger Holder (4 pcs.) - D o not touch the electrical components of the PCB directly. - W hen handling the PCB, take care of components. Do not apply excesive force to them, in order to avoid damaging the motherboard and failures. PCB1 for control 1. Remove the service cover according to section “Removing service cover” in this chapter. - Disconnect all the connectors in the PCB. - Remove the PCB by sliding four (4) holders in the arrow direction.
Page 437 Servicing Service Manual 9.1.13. Removing “W” electrical danger components surface - I dentify the terminal numbers with mark band. When reassembling, the terminals have to be connected to the correct numbers . If incorrectly connected, malfunctions or damages will occur. 1. Remove the service cover according to the section - I n case of replacing control PCB, set all the dip switches as the “Removing service cover” in this chapter. same position before replacing. If not, malfunction may occur. Refer to the manual attached with the service PCB. - D o not apply strong force to the electric components and PCBs to 2.
Page 438 Servicing Service Manual 9.1.14. Removing other electrical components 1. Remove the service cover according to the section “Removing service cover”in this chapter. 2. Open the P-mounting plate by rotating it to the left according to the section “Opening electrical box (P-Mounting Plate) in this chapter.
Page 439 Servicing Service Manual 9.2. oUTDooR UNIT RAS-(4~6)H(V)RNME 9.2.1. Removing service cover Remove the main parts according to the following procedures.  note - T o reassemble perform the procedures in reverse. - T o prevent contamination of the refrigerant with water or foreign particles, do not expose open to atmosphere for long periods. Service - I f necessary, seal pipe ends using caps or tape. cover 1. Remove the four (4) fixing screws. 2.
Page 440 Servicing Service Manual 9.2.3. Removing upper cover Upper cover 1. Remove all the screws fixing the upper cover, both on the front and back of the machine. 2. Lift the upper cover upwards. Screws 9.2.4. Removing the lower part of service panel and rear panel Rear panel...
Page 441 Servicing Service Manual 9.2.5. Removing outdoor fan motor 1. Remove the service cover according to the section “Removing service cover” in this chapter. 2. Remove the air outlet grille according to the section “Removing air outlet grille” in this chapter. 3.
Page 442 Servicing Service Manual Rubber bush 5. Remove the fan motor connector from the PCN202 and Partition plate PCN203 at the electrical box. Cord holder or – Cut off the cable tie that fixes the lead wire of the fan cable tie motor.
Page 443 Servicing Service Manual Thermistor holder Holder Thermistor Thermistor fixing plate Rubber cap Th Thermistor Indication of terminal number Terminal box cover Compressor Compressor wires Details for compressor terminals Compressor Fix it with screw wires (3 wires)  note  warning - D o not expose the refrigerant cycle to the atmosphere for a long - A ll compressor pipes must be brazed to be connected to the period in order to avoid water and foreign particles entering into the...
Page 444 Servicing Service Manual  6. Remove the suction pipe and the discharge pipe from the note compressor. Isolate the wires and electrical components to protect them from the burner flame when brazing the - F ix the lead wire for the compressor firmly using a cable tie to aviod contacting the metal sheet sharp edges and the high temperature connection pipes. piping.
Page 445 Servicing Service Manual 9.2.7. Removing high pressure switch and control pressure switch Remove the service cover according to the section “Removing service cover” in this chapter. 2. Collect the refrigerant from the check joint according to the section “Removing the compressor” in this chapter. Disconnect the fasten terminals from the pressure switches.
Page 446 Servicing Service Manual 9.2.8. O pening electrical box (P-mounting plate) Remove the service cover according to the section “Removing the service cover” in this chapter. Remove the six (6) screws fixing the electrical box. Open the P-mounting plate by rotating it 90 degrees to the left. danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 447 Servicing Service Manual 9.2.9. Removing the coils for the reversing and solenoid valves (SVA1, SVA2 and SVF) Remove the service cover according to the section “Removing service cover” in this chapter. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)” in this chapter.. ...
Page 448 Servicing Service Manual 9.2.10. R emoving expansion valve coil 1. Remove the service cover according to the section “Removing service cover”. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)”in this chapter . danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 449 Servicing Service Manual 9.2.11. Removing reversing valve reassemble the reversing valve by cooling the pipes first with wet cloth in order to avoid brazing material entering the 1. Remove the service cover and the rear service panel reversing valve. according to the section “Removing Service Cover” and the section “Removing lower part of service panel and rear 8.
Page 450 Servicing Service Manual 9.2.13. Removing solenoid valve 1. Remove the service cover and the rear service panel according to the sections “Removing Service Cover” and “Removing lower part of service panel and rear panel”, described in this chapter . 2. Collect the refrigerant from the check joint according to the section “Removing compressor”...
Page 451 Servicing Service Manual 9.2.14. Removing electrical components danger Holder (4 pcs.) - D o not touch the electrical components of the PCB directly. - W hen handling the PCB, take care of components. Do not apply excesive force to them, in order to avoid damaging the motherboard and failures. PCB1 for control 1. Remove the service cover according to section “Removing service cover” in this chapter. - Disconnect all the connectors in the PCB. - Remove the PCB by sliding four (4) holders in the arrow direction.
Page 452 Servicing Service Manual 9.2.15. Removing “W” electrical danger components surface - I dentify the terminal numbers with mark band. When reassembling, the terminals have to be connected to the correct numbers . If incorrectly connected, malfunctions or damages will occur. 1. Remove the service cover according to the section - I n case of replacing control PCB, set all the dip switches as the “Removing service cover” in this chapter. same position before replacing. If not, malfunction may occur. Refer to the manual attached with the service PCB. - D o not apply strong force to the electric components and PCBs to 2.
Page 453 Servicing Service Manual 9.2.16. Removing other electrical components 1. Remove the service cover according to the section “Removing service cover”in this chapter. 2. Open the P-mounting plate by rotating it 90 degrees to the left according to the section “Opening electrical box (P-Mounting Plate) in this chapter.
Page 454 Servicing Service Manual 9.3. oUTDooR UNIT RAS-(8~12)HRNM 9.3.1. Removing service cover Remove the main parts according to the following procedures.  note - T o reassemble perform the procedures in reverse. - T o prevent contamination of the refrigerant with water or foreign particles, do not expose open to atmosphere for long periods. Service - I f necessary, seal pipe ends using caps or tape. cover 1. Remove the four (4) fixing screws. 2.
Page 455 Servicing Service Manual 9.3.3. Removing upper cover 1. Remove the eleven (11) screws fixing the upper cover 2. Lift the upper cover upwards. Upper cover 9.3.4. Removing the lower part of service panel and rear panel 1. Remove the five (5) fixing screws at the lower part of the service panel and remove the lower part of the service panel by pulling towards the front side.
Page 456 Servicing Service Manual 9.3.5. Removing outdoor fan motor 1. Remove the service cover according to the section “Removing service cover” in this chapter. 2. Remove the air outlet grille according to the section “Removing air outlet grille” in this chapter. 3.
Page 457 Servicing Service Manual 9.3.6. Removing outdoor fan motor compressor fixed by one (1) screw. Disconnect the compressor wires in the terminal box and remove the sound 1. Remove the service cover according to the section insulation cover. “Removing service cover” in this chapter. ...
Page 458 Servicing Service Manual Thermistor holder Holder Thermistor Thermistor fixing plate Rubber cap Th Thermistor Indication of terminal number Terminal box cover Compressor Compressor wires Details for compressor terminals Compressor Fix it with screw wires (3 wires)  note  warning - D o not expose the refrigerant cycle to the atmosphere for a long - A ll compressor pipes must be brazed to be connected to the period in order to avoid water and foreign particles entering into the...
Page 459 Servicing Service Manual  6. Remove the suction pipe and the discharge pipe from the note compressor. Isolate the wires and electrical components to protect them from the burner flame when brazing the - F ix the lead wire for the compressor firmly using a cable tie to aviod contacting the metal sheet sharp edges and the high temperature connection pipes. piping.
Page 460 Servicing Service Manual 9.3.8. Removing high pressure switch and control pressure switch Remove the service cover according to the section “Removing service cover” in this chapter. 2. Collect the refrigerant from the check joint according to the section “Removing the compressor” in this chapter. Disconnect the fasten terminals from the pressure switches.
Page 461 Servicing Service Manual 9.3.9. O pening electrical box (P-mounting plate) Remove the service cover according to the section “Removing the service cover” in this chapter. Remove the six (6) screws fixing the electrical box. Open the P-mounting plate by rotating it 90 degrees to the left. danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate.
Page 462 Servicing Service Manual 9.3.10. Removing the coils for the reversing and solenoid valves (SVA1, SVA2 and SVF) Remove the service cover according to the section “Removing service cover” in this chapter. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)” in this chapter.. ...
Page 463 Servicing Service Manual 9.3.11. Removing expansion valve coil 1. Remove the service cover according to the section “Removing service cover”. 2. Open the P-mounting plate according to the section “Opening electrical box (P-Mounting Plate)”in this chapter . danger - C heck that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate. - D o not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to avoid an electrical shock.
Page 464 Servicing Service Manual 9.3.12. Removing reversing valve reassemble the reversing valve by cooling the pipes first with wet cloth in order to avoid brazing material entering the 1. Remove the service cover and the rear service panel reversing valve. according to the section “Removing Service Cover” and the section “Removing lower part of service panel and rear 8.
Page 465 Servicing Service Manual 9.3.14. Removing solenoid valve 7. Remove the flare nuts with two spanners to avoid twisting. 1. Remove the service cover and the rear service panel 8. Reassemble the parts in the reverse order of removing order according to the sections “Removing Service Cover” and of removing procedures.
Page 466 Servicing Service Manual 9.3.15. Removing electrical components (380-415V/50Hz, 380V/60Hz) danger - C heck that the LED201 (red) located on the “W” surface PCB is PCB3 OFF when opening the P-mounting plate. - D o not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to avoid an electrical PCB1 for control shock. 1. Remove the service cover according to section “Removing service cover” in this chapter. - Disconnect all the connectors in the PCB. - Remove the PCB by sliding four (4) holders in the arrow direction.
Page 467 Servicing Service Manual 9.3.16. Removing inverter components danger 1. Remove the service cover according to the section - D o not touch the electrical parts when LED201 (Red) on the PCB2 is lit to prevent from an electrical shock. “Removing service cover” in this chapter. - W hen replacing the transistor module (IPM) and diode module (DM) on heat radiation fin, slightly apply the heat conducting silicon 2. Open the P-mounting plate by rotating 90 degrees to the left grease (Manufacture: Shin-Etsu Chemical Co., Ltd, Product No.: G-746) over the fin contact surface.
Page 468 Servicing Service Manual 9.3.17. Removing diode module and  note transistor module - T he correct position of the marks on the PCB2 is upside down when being assembled. Check to ensure that the LED201 (Red) of the PCB2 is off. - I dentify the terminal Nos. with the mark band Nos. when reassembling. If incorrectly connected, malfunction or damage will 1. Disconnect all the wirings connected to the diode module as occur.
Page 469 Servicing Service Manual 9.3.18. Removing other electrical components 1. Remove the service cover according to the section “Removing service cover”in this chapter. 2. Open the P-mounting plate by rotating it 90 degrees to the left according to the section “Opening electrical box (P-Mounting Plate) in this chapter.
Page 470 Servicing Service Manual 9.4. RCI-(1.5~6.0)FSN2E 4-Way Cassette Knob 9.4.1. Removing the long life filter 1. The long life filter is located inside of the air intake grille. Remove the filter after opening the air intake grille. The air intake grille can be dissambled by pushing the knob in the arrow mark direction.
Page 471 Servicing Service Manual 9.4.4. Removing the optional air panel 1. Remove the electrical box cover according to the section "Removing the electrical box cover" in this chapter. Electrical Box Disconnect the connector CN17 for the louver motor on the indoor main PCB. 2.
Page 472 Servicing Service Manual 9.4.6. Removing the bell-mouth 1. Remove the three (3) screws fixing the bell-mouth onto the drain pan and remove the bell-mouth. 2. Remove the runner by removing the nut and the washer fixing 3. Remove the earth wire for the fan motor. (Only for 4, 5 and 6 Plug HP).
Page 473 Servicing Service Manual 9.4.8. Removing the drain pan 1. Remove the optional air panel according to the section "Removing the optional air panel" in this chapter. 2. Remove the electrical box cover according to the section "Removing the electrical box cover" in this chapter. Disconnect the connectors of the air outlet thermistor, piping thermistors (2), electronic expansion valve, drain pump, float switch and fan motor.
Page 474 Servicing Service Manual 9.4.11. Removing the thermistor for liquid pipe and gas pipe (Up-close view of thermistor installation) 1. Remove the optional air panel according to the section Fixing plate of thermistor "Removing the Optional Air Panel" in this chapter. 2.
Page 475 Servicing Service Manual 9.4.13. Removing the automatic louver  note motor - D o not hold the motor part when loosening the lock nut by spanner. The base of the drive part may turn idle and break. 1. Remove the optional air panel according to the section “Removing the Optional Air Panel” in this chapter. 6. Tturn the lock nut by a few turns, and then, the drive part is separated from the screw and can be removed.
Page 476 Servicing Service Manual 9.5. RCIM-(1.5-2.0)FSN2 9.5.1. Removing the air filter 1. The air filter is located inside the air intake grille. Detach the Air intake grille filter after opening the air intake grille by pushing the knob in the arrow mark direction. Then, the air intake grille can be opened.
Page 477 Servicing Service Manual Enlarged view 9.5.4. Removing the optional air panel Connector for auto swing motor (air 1. Open the intake air grille and disconnect the connector for the panel side) auto louver Connector for auto swing motor (indoor unit side) Without air inlet grille Electrical box 2.
Page 478 Servicing Service Manual 9.5.5. Removing the fan runner and fan Electrical motor box fixing screw 1. Remove the intake air grille according to the sections Drain pump Fan motor “Removing air filter” and “Removing the intake air grille” in this connector connector (PCN6)
Page 479 Servicing Service Manual 9.5.7. Removing the printed circuit  note board (PCB) - D o not use sharp-sectioned articles such as a screwdriver for fixing the rubber plug. - A fter fixing the rubber plug, there must be 2 - 3mm clearance from 1. Remove the air intake grille according to the section the drain pan. "Removing the air intake grille" in this chapter. 2.
Page 480 Servicing Service Manual 9.5.9. Removing the drain-up mechanism Fixing plate 1. Remove the drain pan according to the section "Removing the drain pan" in this chapter. Drain-up mechanism Screws 2. Remove the hose band and remove the drain hose. Hose Drain-up mechanism Disconnect the drain hose...
Page 481 Servicing Service Manual 9.5.10. Removing the float switch Screw Resin nut Fixing plate for float 1. Remove the drain pan according to the section “Removing drain pan” in this chapter. Hook Float switch 2. Removing the float switch: – The float switch is located at the rear side of the drain pan.
Page 482 Servicing Service Manual Heat exchanger 9.5.11. Removing the thermistor for Motor liquid pipe and gas pipe 1. Remove the optional air panel according to the section "Removing the optional air panel" in this chapter. 2. Remove the bell-mouth according the section "Removing the Partition plate for fan runner and fan motor"...
Page 483 Servicing Service Manual 9.5.13. Removing the automatic louver 6. Turn the lock nut by a few turns. Then, the drive part separates from the screw and can be removed. motor 7. Prepare the new drive part for replacement (servicing part) with the position of the driver (drive screw) already adjusted.
Page 484 Servicing Service Manual 9.6. RCD-(1.5~5.0)FSN2 Upper part of filter 2-way cassette Hinges 9.6.1. R emoving the long-life filter and the air inlet grille Air intake grille Hinges Long life filter The long-life filter is located inside of the air inlet grille. You can open the air inlet grille by pushing the knobs as shown Lower part of filter besides.
Page 485 Servicing Service Manual 9.6.4. Removing the fan runner and the fan motor 1. Remove the optional air panel according to the section "Removing the optional air panel" in this chapter. Screw 2. Removing the electrical box. – Disconnect the connectors for each wire. –...
Page 486 Servicing Service Manual 9.6.5. Removing the printed circuit from the drain hose. Then, disconnect the drain hose, and finally remove the drain-up mechanism. board (PCB) 1. Remove the air inlet grille according to the section "Removing the long-life filter and the Air inlet grille". Holder Holder 2.
Page 487 Servicing Service Manual 9.6.8. Removing the drain pan RCD-2.0 to 3.0 FSN 1. Remove the air inlet grille according to the section "Removing the long-life filter and the Air inlet grille" in this chapter. 2. Open the electrical box panel according to the section "Removing the electrical box panel".
Page 488 Servicing Service Manual 9.6.9. Removing the thermistor for liquid pipe and gas pipe Thermistor Liquid side for gas Holder pipe 1. Remove the optional air panel according to the section "Removing the optional air panel" in this chapter. Insulation 2. Remove the bell mouth according to the section "Removing Gas side the fan runner and the fan motor"...
Page 489 Servicing Service Manual 8. Put the drive part onto the valve body, hold the drive part and the valve body with their axes matching and attach the lock nut to the screw part of the valve body. Tighten the lock nut with a spanner after tightening lightly by hand.
Page 490 Servicing Service Manual 9.6.11. Removing the automatic louver Insulation motor C panel assembly 1. Remove the optional air panel according to the section "Removing the optional air panel" in this chapter. 2. Remove the insulation material that is mounted with the Optional air panel adhesive at both sides of the C panel assembly.
Page 491 Servicing Service Manual 9.7. RPI-(1.5~6.0)FSN2E Electrical box cover location 9.7.1. R emoving the electrical box and electrical parts 1. Remove Electrical box cover, for accessing the electrical components. Electrical Box cover  note - T he photographs ilustrates the servicing procedures for the RPI Electrical box 0.8~1.5 FSN2E duct unit model. For RPI 2.0~6.0 FSN2E and RPI 8.0~10.0 FSN1E, the servicing procedures are carried out in the same way. - R PIM 1.5 servicing procedures are ilustrated before the following explanation of the RPI units.
Page 492 Servicing Service Manual 9.7.3. Removing the outlet air thermistor  note Outlet termistor - To disconnect this component properly from the PCB, see the electrical wiring diagram chapter of this manual. 1. The thermistor is located on the outlet side as shown in the detail. 9.7.4. Removing the liquid and gas pipe themistors Electrical box ...
Page 493 Servicing Service Manual 9.7.5. Removing the fan parts  Parts list: (Fan motor / Fan casing / Runner). 1. Remove the tape located on the center of the casing, push clousing lockers and remove the half part of the casing. 2.
Page 494 Servicing Service Manual 9.7.7. Removing the float switch   note - T o disconnect this component properly from the PCB, see the Electrical wiring diagram chapter of this Manual Float switch location  1. Perform steps for removing the covers described before. 2. Loosen the screws that fix the float switch to the stay. Float switch 9.7.8. Removing the air filter ...
Page 495 Servicing Service Manual RPIM 1.5 FSN2E Electrical box cover location 9.7.1.1. R emoving the electrical box and ¡ electrical parts 1. Remove Electrical box cover, for accessing the electrical components. Electrical box Fixing Terminal board Fixing screw screw Transformer Fixing Fixing screw screw P.C.B. 2.
Page 496 Servicing Service Manual 9.7.1.3 Removing the outlet air thermistor ¡  note - T o disconnect this component properly from the PCB, see the Outlet termistor electrical wiring diagram chapter of this manual 1. The thermistor is located on the outlet side as shown in the detail. 9.7.1.4. Removing the liquid and gas pipe ¡...
Page 497 Servicing Service Manual 9.7.1.5. Removing the fan parts ¡  Parts list: (Fan motor / Fan casing / Runner). 1. Perform steps for removing the covers described before. 2. Remove the tape located on the center of the casing, push ...
Page 498 Servicing Service Manual 9.8. RPC-(2.0~6.0)FSN2E Ceiling type 9.8.1. Removing the air filter The air filter is located inside of the air inlet grille. Remove the air filter after opening the air inlet grilles. 1. Push the knobs of the air inlet grille backwards. Hook at the front 2.
Page 499 Servicing Service Manual 9.8.4. Removing the fan motor 1. Open the air inlet grille according to the section "Removing the air filter" in this chapter. Fixing screw 2. Remove the stay at the air inlet. Stay Air inlet panel 3. Disconnect the connector for the indoor fan motor. Wiring panel Electrical box 4.
Page 500 Servicing Service Manual 9.8.5. Removing the bearing 1. Remove the side panel according to the section "Removing Fixing screw for the the side panel". bearing Fixing screw for the shaft 2. Loosen the two screws that fix the bearing and the shaft by means of a hexagon wrench.
Page 501 Servicing Service Manual 9.8.8. Removing the thermistors for liquid pipe and gas pipe 1. Remove the right-side panel and the left-side panel according to the section "Removing the sidepPanel". 2. Remove the lower panel. Lower panel 3. Remove the drain pan after disconnecting the drain hose. 4.
Page 502 Servicing Service Manual 9.9. RPK-(1.5-2.0)FSN2M 9.9.1. Removing the air filter 1. Pull up the right side and the left side of the air inlet grille as shown in the figure. 2. Pull down the air filter after lifting the grille and remove the air filter from the hinge.
Page 503 Servicing Service Manual 6. For attaching the front panel, first attach the front panel at the air outlet side. Then, attach the three hooks at the upper part of the front panel. 7. Open the front panel as the procedure (1) and fix the screw (1 piece) at the center of the front panel.
Page 504 Servicing Service Manual 3. Slightly lift the front panel upward in order to release the combined parts (three parts) of upper side of the front panel.  RPK 2.5~4.0 In order to connect the refrigerant piping, wiring and to check drain water flow, removing the right side cover is needed Perform this work according to the following instructions.
Page 505 Servicing Service Manual 9.9.3. Removing the motor for the Connector (white) Connector (black) automatic louver Screws (4 pcs.) 1. Remove the front panel according to the section "Removing the front panel" in this chapter. 2. Remove the electrical box according to the section "Removing the electrical box panel"...
Page 506 Servicing Service Manual 5. To remove the thermistor for the discharge air, remove it from Vertical louver the holder of the vertical louver and the hook at the right side of the air outlet. Thermistor for the Holder discharge air Vertical louver Thermistor for the discharge air...
Page 507 Servicing Service Manual 9.9.6. Removing the drain pan 1. Remove the front panel according to the section "Removing Heat exchanger the front panel". Detach the hook (B) 2. Remove the electrical box according to the section "Removing the electrical box panel". Drain pan 3.
Page 508 Servicing Service Manual 7. Lift up the heat exchanger. Draw out the rear piping of the heat exchanger from the square hole by pulling the upper Unit body part of the heat exchanger forward, and then remove the heat Square hole exchanger.
Page 509 Servicing Service Manual 6. For attaching the fan motor and the fan, perform in reverse Partition plate Partition plate order the procedure for removing the fan motor and the fan. 8 mm 7. Fix the fan at the position with a 8mm clearance between the Fan motor Bearing left end (bearing side) of the fan and the partition plate.
Page 510 Servicing Service Manual the valve body with their axes matching and attach the lock nut to the screw part of the valve body. Tighten the lock nut with a spanner after tightening lightly by hand. Pulse motor The tightening torque should be within the range of 12Nm(120kg- cm) ~ 15Nm (150kg-cm).
Page 511 Servicing Service Manual 9.10. RPK-(2.5~4.0)FSN2M  note - I n order to remove the filter, you need to change the louver position using one of the remote control switches PC-P2HTE and PC- RLH3A. In case of PC-P2HTE 1. Press the “↓↑” switch. The symbol “↓↑” (Up & down panel operation) will be displayed in the Liquid crystal display. 2.
Page 512 Servicing Service Manual 9.10.1. Removing the right side cover 1. Remove one screw fixing the right side cover Remove screw Release catch 2. Release the lower left side catch of the right side cover. Right side cover Pull the right cover slighty and release the catch. Lift upward Push Catch...
Page 513 Servicing Service Manual 9.10.2. Removing the thermistors for liquid pipe, gas pipe, discharge Expansion valve air and suction air Freeze protection 1. Remove the right side cover according to the section thermistor “Removing right side cover”, and remove the suction air grille. Thermistor holder 2.
Page 514 Servicing Service Manual 9.10.3. Removing the drain pan 1. Remove the right side cover according to the section “Removing right side cover” in this chapter, and remove the suction air grille. 2. Pull the cover of the discharge air lower side toward the front side, and remove it.
Page 515 Servicing Service Manual 9.10.4. R emoving the electrical box Connector for ban Connector for gas motor (CN550) and freeze protection panel thermistor (THM5,THM3) Connector for remote control switch (CN13) 1. Remove the right side cover according to the section “Removing right side cover”, and remove the suction air grille. Electrical box cover 2.
Page 516 Servicing Service Manual 9.10.5. R emoving the heat exchanger 1. Remove the right side cover according to the section Pipe holder “Removing right side cover”, and remove the suction air grille. 2. Remove the drain pan according to the section “Removing M4 Truss head screw the drain pan”.
Page 517 Servicing Service Manual 9.10.6. Removing the fan and the fan motor Screw Cover 1. Remove the heat exchanger according to the section “Removing the heat exchanger”. 2. Remove one screw and two catches at the cover of the upper side fan motor and remove the cover. Release Cover Catch Loosen Screw...
Page 518 Servicing Service Manual 9.10.7. Removing the suction air grille 1. Remove the right side cover according to the section “Removing right side cover”. 2. Remove one screw of the left side cover. Left side cover Screw Release catch Suction air grille upper side 3.
Page 519 Servicing Service Manual 9.10.8. Removing the electronic expansion valve coil Heat exchanger Expansion valve coil 1. Remove the front panel according to the section "Removing the front panel" in this chapter. Pipe holder 2. Remove the electrical box according to the section "Removing the electrical box panel".
Page 520 Servicing Service Manual  note - D o not apply great forces, such as the rotating torque and the bending load, to the motor by holding the motor by hand when you are tightening the lock nut. Pulse motor Although the direction of the eccentric part of the motor is assembled with the eccentric part of the motor directed toward the counterdirection of the fittings for piping at the valve body, the Drive part Gear alteration of this direction does not affect the open/close function of the valve. Therefore, the adjustment of the direction of the motor part is not Output shaft required if the position of the motor is moved toward the rotating direction after the replacement, as shown in the Figure. Lock nut Bellows However, make sure that the direction of the motor for the coil of the electronic expansion valve does not touch other piping and the Valve side plate of the electrical box. Valve Valve part sheet Valve body 7. Wrap the electronic expansion valve with butyl sheet again. 8.
Page 521 Servicing Service Manual 9.11. RPF-(1.5~2.5)FSN2E Floor Type 9.11.1. Removing the air inlet grille 1. Loosen the screws for the fixing plate at the right side of each air inlet grille. Then, move the fixing plates. 2. By pushing the knob at both sides of the air inlet grille towards the arrow mark direction, the air inlet grille can be opened with an angle of 30°.
Page 522 Servicing Service Manual 9.11.5. Removing the fan motor 1. Remove the air inlet grille according to the section "Removing the air inlet grille". 2. Remove the air filter according to the section "Removing the air filter". 3. Remove the front panel according to the section "Removing the front panel".
Page 523 Servicing Service Manual 9.11.6. Removing the printed circuit board (PCB) Side panel 1. Remove the air inlet grille according to the section "Removing the air inlet grille" in this chapter. 2. Remove the air filter according to the section "Removing the air filter"...
Page 524 Servicing Service Manual 9.12. RPFI-(1.5~2.5)FSN2E Floor-concealed type 9.12.1. R emoving the air filter 1. The air filter is located at the inner upper part of the inlet. 3. Remove the air filter by pulling the center knob and bend the filter. 9.12.2. Removing the front panel Air filter 1.
Page 525 Example of system is as follows. Check to ensure that the system  KPI-(502~2002)E1E is checked by your distributor or dealer of HITACHI.total heat Exchange Mode. Air returned from the indoor side passes through the total heat exchanger element and it is ejected outside.
Page 526 Servicing Service Manual 9.13.2. Standard connection system and central station lEGEND NOTES: (1*): PSC-5S can not change the fan speed of the unit. : Indoor Unit (2*): Set table by Remote control switch : Total Heat Exchanger Set the unit number of all indoor unit respectively and serially by using RSW1 and DSW5 (Indoor Unit) : Available In case of H-LINK, set one refrigeration number to each Total heat...
Page 527 (2*) Bypass ventilation Pre-Cool Pre-Heat —— —— (2*) Air volume up (2*) Filter sign 9.13.3. Controlled network system Hitachi Computer Controlled Network System CS-NET H-LINK H-LINK H-LINK Example of systems PC-P2HTE CSNET WEB PC-P2HTE CSNET WEB CSNET WEB PC-P2HTE Outlook of systems...
Page 528 Servicing Service Manual Hitachi Computer Controlled Network System CS-NET RUN/ STOP Total Heat Exchanger SPEED Total Heat Exchanger Auto Total Heat VENTI (2*) (2*) (2*) (2*) (2*) Exchanger MODE Bypass Ventilation Pre-Cool Pre-Heat (2*) —— —— (2*) —— —— —— ——...
Page 529 Servicing Service Manual 9.13.4. Filter maintenance  Step 3: ● KPI-(502-2002)E1E Use a vacuum cleaner to suck up the dust. To remove stubborn dirt, dissolve some neutral detergent in cold or lukewarm water, danger wash the filters by pressing on them in the water, take them out and leave them to dry.
Page 530 Servicing Service Manual ● Air filter cleaning kpi-3002h1e models  Step 1: Open the filter access door and pull out the filters.  Step 2: Use a vacuum cleaner to suck up the dust and dirt on the exposed surfaces of the total heat exchange elements. Attach a nozzle with a brush to the vacuum cleaner for this job and clean the elements by passing the brush lightly over their exposed surfaces.
Page 531 Servicing Service Manual ● kpi-3002h1e models  caution Remove the screws and pull down to take out the heat exchanger element. Pay attention when handling and taking out the Heat exchanger. It is a heavy object and it may fall down quickly from its casing.  Step 2: To remove motors, unscrew the four (4) screws fixing each fan motor. Four (4) screws at To change the fan motors, remove the four (4) screws fixing the each side electrical box and access to the connector, as shown in the next photos.
Page 532 Servicing Service Manual 9.14. ClEANING THE INDooR HEAT EXCHANGER 9.14.1. Required tools for cleaning (for all indoor units) danger - Before performing any of the service operations described in this chapter, turn all the main switches off and place security lockers or convenient warning indicators in order to prevent them from turning on accidentally. Tool Remarks Cleaning water pump A water pump equipped with a tank is recommended Water tank clean water Approx.
Page 533 Servicing Service Manual Cleaning water collector – In the celing type – 2-way cassette – Wall type – Ceiling type Insert the bar Transparent Insert the bar vinyl sheet Boss Hose Inner side of Ø120 hole should be covered with felt sheet in order to insert the spray nozzle Cleaning water collector kit –...
Page 534 Servicing Service Manual 9.14.2. Cleaning the 4-way cassette indoor unit  note Motor panel - S pread a vinyl sheet over the floor in order to protect furniture and others from the cleaning water before performing this work. Procedure: 1. Remove the optional air panel according to the section "Removing the optional air panel". Put a vinyl sheet here 2.
Page 535 Servicing Service Manual 2. Scratch off the dust on the inner surface of the heat exchanger downwards using a brush. Collect all the dust in a bucket or a carton box. 3. Suspend the cleaning water collector from the indoor unit. 1.
Page 536 Servicing Service Manual  note - I f the cleaning water stays, the fins will be rusted. Adjust the pressure of the pump at 2.5 to 5.0 kg/cm² in order not to damage the fins. Cleaning 6. After cleaning, mount the drain pan by extending the rope spray downwards before.  note - I f the cleaning water collector is removed, wipe off the drops from the indoor unit. 7. Check the insulation of the drain pump with a megohm-meter. Make sure that the insulation is greater than 1 MΩ...
Page 537 Servicing Service Manual 9.14.3. Cleaning the 2-way cassette indoor unit Spread a vinyl sheet over the floor in order to protect furniture and others from the cleaning water before doing this work. 1. Remove the drain pan according to the section, "Removing the drain pan".
Page 538 Servicing Service Manual 6. Suspend the cleaning water collector from the indoor unit. 12. Neutralization treatment after the cleaning – Connect a rope to the suspension bracket of the indoor unit and put the rope downwards. The cleaning agent that is specified is neutral-type. However, –...
Page 539 Servicing Service Manual 9.14.4. Cleaning the wall type indoor unit Spread a vinyl sheet over the floor in order to protect furniture and others from the cleaning water before doing this work. 1. Remove each part according to the section "Wall type". 2.
Page 540 Servicing Service Manual 9.14.5. C leaning the floor type indoor unit and the floor concealed type indoor unit Heat exchanger  note Cover the heat exchanger with - S pread a vinyl sheet over the floor in order to protect furniture and vinyl sheet others from the cleaning water before performing this work. Front side partition 1. Remove the front panel according to the section "Removing the front panel". Drain pan 2.
Page 541 Servicing Service Manual 6. Spray the cleaning water over the fins of the heat exchanger. 7. Cleaning with the clean water Cover the wiring connectors with the insulation tape. Ensure the control’s tape is closed. Operate the pump and clean the heat exchanger with the clean water completely.
Page 542 Servicing Service Manual 9.14.6. Cleaning the ceiling type indoor 13. Make sure that the water can flow smoothly after pouring the water on the drain pan. unit 14. Neutralization Treatment after the Cleaning Spread a vinyl sheet over the floor in order to avoid the cleaning The cleaning agent that is specified is neutral-type.
Page 543 Servicing Service Manual 9.15. CollECTING REFRIGERANT FoR REPlACING INDooR UNIT When the refrigerant should be collected into the outdoor Dip switch unit due to indoor/outdoor unit relocation, collect (DSW1-1 ON) the refrigerant as follows. Liquid Manifold gauge stop valve 1. Attach the manifold gauge to the gas stop valve and the liquid stop valve.
Page 544 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 545 Main parts Service Manual MAIN PARTS CoNTENTS 10.1. Inverter .............................10-2 10.1.1. Specifications of inverter ........................10-2 10.1.2. Inverter time chart ..........................10-4 10.1.3. Protective function ..........................10-5 10.1.4. Overload control ..........................10-6 10.2. AC chopper ..........................10-7 10.3. Thermistor ..........................10-9 10.4. Electronic expansion valve .....................10-11 10.4.1.
Page 546 Main parts Service Manual 10.1. INVERTER 10.1.1. Specifications of inverter Aplicable model RAS-(4~12)HRNM RAS-(3~6)HVRNME 3 Phase 380-415V,50 Hz RAS-(8~12)HRNM Aplicable power source 1 Phase. 230V, 50 Hz 3 Phase 400V, 50 Hz RAS-(4~6)HRNME Input current RAS-4~12HRNM 6~25A RAS-3~6HVRNME 15~30A Control Method Vector control To be informed later Range output frequency 20~115HZ...
Page 547 Main parts Service Manual Protection function Detecting current is more than 150% of the rated current. Rated current x 150% Rated current x 105% Overcurrent protection for inverter Time *) Internal protection IPM (1) Short-circuit trip of arm *) (2) Instantaneous overcurrent trip *) (3) Instantaneous overcurrent trip (4) Electronic thermal trip Condition is maintained longer than 30 seconds or accumulated longer than...
Page 548 Main parts Service Manual 10.1.2. Inverter time chart Main circuit power source Frequency Frequency All bit 1 All bit 1 operation HIGH Frequency instruction Output voltage Soft start-stop (frequency) The changing speed dependes on the outer setting Failure signal Output Activation of protection device Transmit error...
Page 549 Main parts Service Manual 10.1.3. Protective function 1. Excessive high or low voltage for inverter a) Level of detection When the voltage of direct current is greater than (A) V, abnormalities are detected. When the voltage of direct current is smaller than (B) V, abnormalities are detected. Power supply 400V, 50Hz / 380-415V, 50Hz 230V, 50Hz...
Page 550 Main parts Service Manual 5. Fin temperature increase a) Level of detection When the temperature of internal thermistor exceeds more than 100 ºC, an abnormality is detected. b) Function When abnormalities are detected, the inverter compressor is stopped and the signal code of stoppage cause is transmitted to PCB1.
Page 551 Main parts Service Manual 10.2. AC CHoPPER (Only for RCD indoor unit) Reduction of electromagnetic sound Fan motor control by AC chopper: Lower electromagnetic sound and vibration have been achieved by AC chopper control than thyristor control. AC chopper control Concept of fan speed control The voltage applied to the fan motor is controlled by chopping (ON/OFF) the power supply voltage at a frequency of 20kHz.
Page 552 Main parts Service Manual 2. Structure 2.1A (For indoor units: RCD (2.0 to 2.5HP) models) 3. Circuit diagram (outline) 2.1A AC220V (From control PCB) Input duty signal (From control PCB) SMGB0047 rev.0 - 06/2008 10-8 AC chopper https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 553 Main parts Service Manual 10.3. THERMISToR Thermistors for the outdoor unit Thermistor for outdoor ambient temperature (THM7) Thermistor for discharge gas temperature (THM9) Thermistor for evaporating temperature (THM8) Thermistors for the indoor unit Thermistor for the gas pipe temperature in indoor heat exchangers (THM5) Thermistor for...
Page 554 Main parts Service Manual • T hermistor for upper part temperature of compressor (For prevention of discharge gas overheating) R25 = 200kΩ a. A thermistor for the upper part temperature of the B = 3920k compressor is installed to prevent discharge gas from overheating. If discharge gas temperature increases excessively 72.3 lubricating oil deterioration occurs and lubricating...
Page 555 Main parts Service Manual 10.4. ElECTRoNIC EXPANSIoN VAlVE 10.4.1. Electronic expansion valve for the outdoor unit Micro-computer Pulse motor Pulse signal 2-Phase permanent magnetic pulse motor Control 0 to 500 pulse by 1 pulse Refrigerant flow control Needle Precise control Items Specifications Applicable to the models For the main cycle of: RAS-(4~12)H(V)RNM(E) Type UKV(10.0 USRT) series/UKV (5.0USRT) series for MVB...
Page 556 Main parts Service Manual 10.4.2. Electronic expansion valve for the indoor unit Micro-computer Pulse motor Pulse Motor Pulse signal 2-Phase permanent magnetic pulse motor Gear Gear Control 0 to 2000 pulse by 1 pulse Output shaft Output Shaft Lock nut Lock Nut Bellows Bellows Refrigerant flow control Valve Valve Precise control...
Page 557 Main parts Service Manual 10.5. HIGH PRESSURE PRoTECTIoN DEVICE If the discharge pressure is excessively high, the compressor and the component parts of the refrigeration cycle can be damaged. Therefore, in case that the discharge pressure is higher than 4.15MPa (R410A), the protection control is activated and the compressor is stopped.
Page 558 Main parts Service Manual 10.6. NoISE FIlTER (NF) The noise filter decreases the leakage of noise made by the inverter to the power supply side. Terminals indicated with “LOAD” are connected to the inverter side and terminals indicated with “LINE” to the power supply side. RAS-(8~12)HRNM (380-415V/50Hz), RAS-(4~6)HRNME (400V/50Hz), RAS-(4~6)HVRNME (230V/50Hz) Items Specifications...
Page 559 Main parts Service Manual 10.7. CAPACITOR (CB1, CB2) This part is used for changing the alternative current to the direct current for the inverter. Connect two capacitor in line and used. RAS-(8~12)HRNM (380-415V/50Hz), RAS-(4~6)HRNME (400V/50Hz) Items Specifications Models LNX2G472MSEAHE Capacity of static electricity 4700μF Rated voltage 400 VDC...
Page 560 Main parts Service Manual 10.9. AUTo loUVER MECHANISM 10.9.1. RCI (4-way cassette type) 1. Auto-louver operation The louvers of the optional air panel with auto-louver swing simultaneously by four drive motor. The parts of the auto-louver mechanism are shown below. The motor (1) is installed to the louver directly.
Page 561 Main parts Service Manual 10.9.2. RCD (2-way cassette type) 1. Auto-louver operation The louvers of the optional air panel with auto-louver swing simultaneously by a drive motor. The parts of the auto-louver mechanism are shown below. Stoper Louver Bearing Bearing shaft B Stoper Stoper...
Page 562 Main parts Service Manual 10.9.3. RPC (ceiling type) 1. Auto-louver operation The louvers of the optional air panel with autolouver swing simultaneously by a drive motor. The parts and the principle of the auto-louver mechanism are shown in the right figure. The AS motor (1) rotates, the pinion (2) fixed to the shaft of the AS motor (1) rotates, the rotating torque is changed at the rack (3) and the circular reciprocating force gives the driving force to the louver (4) and rotates the louver.
Page 563 Main parts Service Manual 10.10. SCRoll CoMPRESSoR 10.10.1. Reliable mechanism for low vibrating and low sound 1. The rotating direction is definite. 2. The pressure inside of the chamber is high pressure, and the surface temperature of the chamber is 60 °C to 110 °C. 10.10.2.
Page 564 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 565 Field work instruction Service Manual FIElD WoRK INSTRUCTIoN CoNTENTS 11.1. Checking the power source and the wiring connection ............11-2 11.2. Burnt-out compressor due to an insufficient refrigerant charge ..........11-2 11.3. Insufficient cooling performance when a long piping is applied ..........11-3 11.4.
Page 566 Field work instruction Service Manual 11.1. CHECKING THE PoWER SoURCE AND THE WIRING CoNNECTIoN Check the following items in the case of abnormal operation: Check item Procedure Is the breaker of the Check the secondary voltage of the breaker and the fuse by means of a tester. fuse cut out? Disconnect the sedcondary side of the transformer and check the voltage by means of a tester.
Page 567 Field work instruction Service Manual 11.3. INSUFFICIENT CoolING PERFoRMANCE WHEN A loNG PIPING IS APPlIED • Question and answer for the field work Example 2: Insufficient cooling performance when a long piping is applied Phenomenon Sufficient cooling was not available for an indoor unit that was located at the farthest position. Cause If the location of an outdoor unit is 20 meters lower than the location of the indoor units, resetting of the DIP switch DSW3 is required.
Page 568 Field work instruction Service Manual 11.5. AlARM CoDE "31" • Question and answer for the field work Example 4: Alarm code "31" Phenomenon Alarm code "31" sometimes occurred and the system stopped. Cause The combination of the indoor units and the outdoor unit was the following. Power source This system was used in a tenant building. One of tenant's customers turned off the main switch for the indoor unit while other indoor units are running.
Page 569 Field work instruction Service Manual 11.7. GUIDElINE FoR SElECTING THE DRAIN PIPE FoR THE INDooR UNIT • Method for selecting the drain pipe diameter 1. Calculation of the drain flow volume Calculate that the drain flow volume is approximately 3 (I/hr) per 1HP of the nominal capacity of the indoor unit. For example: Common drain pipe for four 2.5HP indoor units.
Page 570 Field work instruction Service Manual 11.8. CAUTIoN WITH THE REFRIGERANT lEAKAGE The designers and the installers have the responsibility to follow the local codes and the local regulations that specify the safety requirements against the refrigerant leakage. 11.8.1. Maximum permissible concentration of the HCFC gas The refrigerant R410A, which is charged in the SET-FREE IVX system, is an incombustible non-toxic gas. However, if the leakage occurs and the gas fills a room, the gas may cause suffocation.
Page 571 Field work instruction Service Manual 11.9. MAINTENANCE WoRK • For the indoor unit and the outdoor unit 1. Fan and fan motor – L ubrication: All the fan motors are prelubricated and sealed at the factory. Therefore, no lubrication maintenance is required. – Sound and vibration: Check for abnormal sounds and vibrations. – Rotation: Check the clockwise rotation and the rotating speed.
Page 572 Field work instruction Service Manual 11.10. SERVICE AND MAINTENANCE RECoRD Check item Action Judgement Is the service area sufficient? Is there a short circuit of the discharged air? Any heat influence? Is the ground wire connected? Refrigerant piping Good Not good Fixing the units Good Not good...
Page 573 Field work instruction Service Manual 11.11. SERVICE AND MAINTENANCE RECoRD USING THE 7-SEGMENT DISPlAY Data sheet for checking by 7-segment display Customer’s name: Date: outdoor unit model (serial no. RAS- (Serial no. RAS- (Serial no. Operation mode Test run start time Data collect start time Read out data from 7-segment in outdoor unit Protection control code...
Page 574 Field work instruction Service Manual 11.12. SERVICE AND MAINTENANCE RECoRD BY REMoTE CoNTRol SWITCH Data sheet for checking by remote control switch Time I.U. model I.U. serial no. I.U. no. / alarm code Check Check 1 · 2 1 · 2 1 ·...
Page 575 Field work instruction Service Manual 11.13. PUMP-DoWN METHoD FoR REPlACING THE CoMPRESSoR Procedure Remarks Turn off the main switch of the outdoor unit. Remove the covers, the thermistor, the crankcase Make sure that the terminal part of the detached power heater, the power wirings, and other items according supply wires is not exposed by the winding insulation tape to the chapter "removing the parts of the oudoor unit".
Page 576 Field work instruction Service Manual Procedure Remarks After collecting the refrigerant, remove the change – Make sure that there is no pressure increase of the hose (collector side) of the low-pressure side, so that low-pressure sides after collecting the refrigerant. the low-pressure side of the refrigerant cycle will be –...
Page 577 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 578 HITACHI is participating in the EUROVENT Certification Programme. Products are as specified in the EUROVENT Directory of Certified Products. Hitachi Air Conditioning Products Europe, S.A. Ronda Shimizu,1 - Políg. Ind. Can Torrella 08233 Vacarisses (Barcelona) España ISO 9001 Certified by AENOR, Spain ISO 14001 Certified by AENOR, Spain Hitachi Appliances, Inc.

This manual is also suitable for:

Ivx rci-1.5fsn2e Ivx rcim-1.5fsn2 Ivx rcd-1.5fsn2 Ivx rci-2.0fsn2e Ivx rcim-2.0fsn2 Ivx rcd-2.0fsn2 ... Show all