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Hitachi SET FREE Series Service Manual

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SET FREE Series

FSN(E)/FXN(E)/FSVNE

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

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Service Manual

Outdoor Units: 3 ~ 42 HP

Indoor Units Type:

• 4-Way Cassette

• 2-Way Cassette

• Wall

• Ceiling

• In-the-Ceiling

• Floor

• Floor Concealed

,

.

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Summary of Contents for Hitachi SET FREE Series

Page 1 SET FREE Series FSN(E)/FXN(E)/FSVNE https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html Service Manual Outdoor Units: 3 ~ 42 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 HITACHI may bring the latest innovations to their customers Whilst every effort is made to ensure that all dimensions and specifications are correct, any printers' errors not rectified are outside the control of HITACHI, who cannot be held responsible for same...
Page 4 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 5 Contents Contents Units installation Piping installation Electrical wiring Remote control switch installation Control system Available optional functions Test run Troubleshooting Spare parts Servicing Main parts Field work instruction Page iii SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 6 Contents Page iv SMEN0032 rev.2 - 0/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 7 Contents UNITS CODE LIST  NOTE: Please check, according to the model name, which is your air conditioner type and how it is MODELS CODIFICATION abbreviated and referred to in this technical catalogue. INDOOR UNITS FSN(1)(E) – System Free 4-Way-Cassette 4-Way-Cassette Mini 2-Way-Cassette Ceiling...
Page 8 Contents FSN(E) OUTDOOR UNITS FXN(E) OUTDOOR UNITS Unit Code Unit Code Unit Code Unit Code Unit Code RAS–5FSN 60278771 RAS–8FSNE 7E878772 RAS–8FXNE 7E878774 RAS–10FSNE 7E878773 RAS–10FXNE 7E878775 RAS–12FSNE 7E878776 RAS–12FXNE 7E878777 RAS–14FSNE 60278908 RAS–16FSN 60278774 RAS–16FXN 60278841 RAS–18FSN 60278909 RAS–18FXN 60278928 RAS–20FSN RAS–20FXN...
Page 9 Contents COMPLEMENTARY SYSTEMS Accessory Name Code Figure KPI-2521 Total Heat Exchanger 60277481 KPI-5021 Total Heat Exchanger 60277482 KPI-8021 Total Heat Exchanger 60277483 KPI-10021 Total Heat Exchanger 60277484 EF-5GE Econofresh Kit 7E774148 CODE LIST ACCESSORIES Accessory Name Code Figure PC-P2HTE Remote control switch with Timer 7E899954 PC-P1HE Remote control switch...
Page 10 Contents Accessory Name Code Figure PC-RLH8 Receiver kit 60291106 for RCI-FSN1E on the panel PC-RLH9 Receiver kit 60291107 for RCI-FSN on the panel PC-RLH11 Receiver kit 60291109 for RCI, RCD, RPC, RPI, RPK and RPF(I) on the wall PC-RLH13 Receiver kit 60291294 for RCIM-FSN on the panel PSC-5HR...
Page 11 Contents Accessory Name Code Figure P-G23WA2 Air panel for RCI 60290534 P-N23WAM Air panel for RCIM 60197160 P-G23DWA1 Air panel for RCD 60299570 P-G46DWA1 Air panel for RCD 60299571 B-32H4 Adapter for deodorant ﬁlter 60199790 F-23L4-K Anti bacteria ﬁlter 60199791 F-23L4-D Deodorant ﬁlter 60199793...
Page 12 Contents Accessory Name Code Figure CH-4.0NE CH Unit 7E890278 CH-8.0NE CH Unit 7E890197 CH-12.0N CH Unit 60291260 E-102SN Branch pipe 60291202 E-162SN Branch pipe 60291201 E-242SN Branch pipe 60291200 E-302SN Branch pipe 60291199 E-52XN Branch pipe 60291266 E-102XN Branch pipe 60291267 E-162XN Branch pipe...
Page 13 Units installation Units installation This chapter provides information about the procedures you must follow to install the Set-Free FSN(E)/FXN(E)/FSVNE outdoor units and the complete range of Hitachi indoor units. CONTENTS UNITS INSTALLATION ___________________________________________________ 1-1 1.1. Transportation of Outdoor Unit ______________________________________________ 1-3 1.2.
Page 14 Units installation 1.11.5 Foundation provision _____________________________________________________1-52 1.11.6. Center of Gravity ________________________________________________________1-53 1.12. CH-Unit ______________________________________________________________ 1-55 1.12.1. Transportation and handling _______________________________________________1-55 1.12.2. Factory supplied accessories ______________________________________________1-55 1.12.3. Initial check ____________________________________________________________1-55 1.12.4. Installation _____________________________________________________________1-56 1.13 Optional accessories ____________________________________________________ 1-57 1.13.1. Fresh air intake for 4-way type Outdoor Units _________________________________ 1-57 1.13.2.
Page 15 Units installation UNITS INSTALLATION � WARNING: – Mount suspension bolts using M10 (W3/8) as size, as – Check to ensure that the accessories are packed with shown below: the indoor unit. – Do not install the indoor units outdoors. If installed outdoors, an electric hazard or electric leakage will occur.
Page 16 hole hole Rope position) � For installation (3~5 HP) - Hang the unit under packing condition with four (4) Units installation TRANSPORTATION AND HANDLING ropes. Push through the wire ropes into the hang hole and clamp the wires by using shackle as shown below. Wooden Base CORRECT INCORRECT...
Page 17 Units installation 2. Before installation Before installation work, check the availability of the following parts that are packed inside the outdoor unit UNITS INSTALLATION  FSVNE Accessory Purpose Special washer Fixing anchor bolt 2. Before installation Rubber bush For Connection Hole of Operation Wiring For Connection Hole of Power Source Wiring Before installation work, check the availability of the following parts that are packed inside the outdoor unit:...
Page 18 Units installation UNITS INSTALLATION – Check space between ceiling and false ceiling is enough – Consider piping connection side before lift indoor unit. as indicated below. – Lift the indoor unit by hoist, and do not put any force on –...
Page 19 Units installation UNITS INSTALLATION � Ceiling not completed with panels yet. � Removing the air intake grille from the air panel 1. Open the air intake grille to an angle of approximately Pattern Paper for Installation 45° from the surface of the air panel as shown below. Dimension for Opening Dimension for Opening Take up the grille keeping it inclined...
Page 20 Units installation UNITS INSTALLATION 7. Check to ensure that there is no gap around the – When the panel is installed, you can adjust the indoor contacting surface between the indoor unit and the unit height by using the wrench from the corner air panel.
Page 21 Units installation UNITS INSTALLATION Wiring connection for the air panel � � CAUTION: 2. Connect the connectors as shown below (view of the Before connecting connectors, firstly turn OFF power UNITS INSTALLATION electrical box) source. If the connectors are connected without turning OFF the power source, the auto-swing louver cannot function.
Page 22 Units installation UNITS INSTALLATION Suspension Bolts (Field-Supplied) – Check space between ceiling and false ceiling is enough Nut (Field-Supplied) as indicated below. Washer with Insulation (Accessory) – Check the ceiling surface is flat for the air panel Suspension Bracket Approx. 50 installation work.
Page 23 Units installation UNITS INSTALLATION � Ceiling not completed with panels yet. � Removing Cover for Corner Pocekt (Positions) 1. Remove the screw at mark “a”. – Tighten the nuts of the suspension brackets after the adjustment is completed. Apply LOCK-TIGHT paint to the bolts and nuts in order to prevent them from loosening.
Page 24 Units installation UNITS INSTALLATION 1.4. RCD 1.4.2. INITIAL CHECK 1.4.1. FACTORY-SUPPLIED ACCESSORIES – Install the indoor unit with a proper clearance around it paying careful attention to the installation direction for Make sure that the following accessories are packed with the piping, wiring and maintenance working space, as the unit.
Page 25 Units installation UNITS INSTALLATION A (Opening) Mounting the indoor unit � Drain Piping B (Suspension) Connection – Mount the suspension brackets to the suspension bolts and fix them with nuts (factory -supplied), as shown below. – Put the washer so that the surface with insulation can face downwards as shown below: (mm) Suspension bolts (field-suppl.)
Page 26 Units installation UNITS INSTALLATION – Adjust the indoor unit to the correct position while Adjusting space between indoor unit � checking with the checking scales (factory-supplied). and false ceiling opening – Adjust the indoor unit to the correct position while Drain pipe checking with the installation pattern and gauge (factory-supplied) as shown below.
Page 27 UNITS INSTALLATION Units installation � Removing the air intake grille from the air panel: � CAUTION: 1. Open the air intake grille to an angle of approx. 40° Do not turn the air louver by hand. If moved, the louver from the surface of the air panel.
Page 28 Units installation UNITS INSTALLATION 1.5. RPC 1.5.1. FACTORY-SUPPLIED ACCESSORIES Make sure that the following accessories are packed with – Suspension bracket has the following two (2) possible the unit. positions: � NOTE: Case (a) Case (b) If any of these accessories are not packed with the unit, please contact your dealer.
Page 29 Units installation UNITS INSTALLATION � For semi-concealed installation. � Mounting the indoor unit – Open a hole in the false ceiling. Remove side covers of the unit. To avoid damage to the resin side covers, before lifting (mm) or moving the indoor unit, remove the resin side ≥...
Page 30 Units installation 1.6. RPI RPI-8.0/10.0 1.6.1. FACTORY-SUPPLIED ACCESSORIES (Models: RPI-0.8~1.5FSN1E) Service space of (Models: RPI-2.0~6.0FSN1E) false ceiling (Models: RPI-8.0/10.0FSNE) Make sure that the following accessories are packed with From top the unit.  NOTE: - If any of these accessories are not packed with the unit, please contact your dealer.
Page 31 Units installation 1.6.4. CONNECTING FIELD SUPPLY DUCT AND  Mounting the indoor unit SUCTION AIR FILTER SERVICING - Hook suspension bracket to the nut and washer of each suspension bolt, as shown, starting from one side.  Field Supply Duct installation - After checking that the nut and washer are correctly ﬁxed Fix the Flexible Air Duct to External Faces of unit ﬂanges by the retainers of the suspension bracket, hook the...
Page 32 Units installation RPI-8.0~10.0  ATTENTION: (RPI-0.8~1.5/8.0-10.0 only). – Optionally, if applying Suction Duct and keeping The Air Filter (3 panels) is ﬁxed by frames. Pull up the Air the standard Air Filter in its original location (not Filter and removed them as shown in the ﬁgure. recommended), be aware to make a servicing gate onto the Suction Air Duct, as shown in the ﬁgure (Fig.
Page 33 Units installation UNITS INSTALLATION 1.7. RPK 1.7.1. FACTORY-SUPPLIED ACCESSORIES 1.7.2. INITIAL CHECK – Install the indoor unit with a proper clearance around Make sure that the following accessories are packed with it for operation and maintenance working space as the unit. shown below.
Page 34 Units installation UNITS INSTALLATION Putting back the front panel � Removing the front panel � RPK-1.0/1.5FSN1M RPK-1.5FSN1M – In order to connect the refrigerant piping, the wiring and to check the drain water flow, it is necessary to – Firstly put back the upper side of the front panel (three parts), and then fix the hook on bottom center remove the front panel.
Page 35 Units installation UNITS INSTALLATION 1.7.3. DIMENSIONS OF THE MOUNTING BRACKET 1.7.4. DIMENSIONS OF THE MOUNTING BRACKET  RPK-1.0/1.5FSN1M RPK-1.5FSN1M � Mounting bracket Contour of the unit  RPK-0.8/2.0FSNM RPK-1.5~2.0FSNM � Mounting bracket Contour of the unit  RPK-2.5~4.0FSNM � RPK-2.5~4.0FSNM Mounting bracket Contour of...
Page 36 Units installation UNITS INSTALLATION 1.8. RPF (FLOOR TYPE) / RPFI (FLOOR-CONCEALED TYPE) – Service access panel 1.8.1. FACTORY-SUPPLIED ACCESSORIES Provide a service access door or panel as shown below. Make sure that the following accessories are packed with the unit. �...
Page 37 Units installation UNITS INSTALLATION � Air outlet direction change (RPFI) – Fix the base plate and back plate of the unit with field-supplied fixing bolts and screws. When attaching In case of changing the RPFI units air outlet direction from the adjusting bolts for installation, remove the upward to front, follow the procedures below: electrical wiring box.
Page 38 Units installation 1.9 COMPLEMENTARY SYSTEMS 1.8. COMPLEMENTARY SYSTEMS Installation 1.9.1 KPI - TOTAL HEAT EXCHANGER 1.8.1. KPI (TOTAL HEAT EXCHANGER) � � Mounting the suspension bolts Factory-supplied accessories � - Mark the positions of the sling bolts, refrigerant piping Make sure that the following accessories are packed with connections and drain connection.
Page 39 Units installation UNITS INSTALLATION � Attaching the duct connecting flanges � NOTE: - Use the screws supplied to secure the duct connecting In case of that the sling bolts are too short, re-attach flanges to the unit. the suspension bracket in an alternative position. Remove the screws at the top mounting position.
Page 40 Units installation UNITS INSTALLATION � CAUTION: 1.9.2 ECONOFRESH KIT 1.8.2. ECONOFRESH KIT Before connecting the ducts, check that no sawdust Factory-supplied accessories � or any other foreign matter (scraps of paper, vinyl, etc.) has found its way inside the ducts. Make sure that the following accessories are packed with the unit.
Page 41 Units installation UNITS INSTALLATION 1.10 RAS-FSVNE 1.9. RAS FSVNE � � WARNING: CAUTION: – Install the outdoor unit with sufficient clearance around it – Check to ensure that the foundation is flat, level and for operation and maintenance as shown in the next sufficiently strong.
Page 42 Units installation UNITS INSTALLATION 0 < L � 1/2H � A � 200 *4/5HP *4/5HP (mm) 1/2H < L � H � A � 350 e) In case of front side and either of the sides are open f) In case that surrounding wall exist (serial units) (serial units) g) Horizontal (multiple units) h) Vertical (multiple units)
Page 43 Rubber isolator 2 Units installation 1.11. RAS-FSN(E)/FXN(E) 1.10. RAS FSN(E)/FXN(E) � WARNING: � CAUTION: Install the outdoor unit with sufficient clearance around it for operation and maintenance as shown Check to ensure that the foundation is flat, level and in the next figures. sufficiently strong.
Page 44 Keep clearance between the units of more than 50 mm, and avoid obstacles that may hamper air Units installation intake, when installing more than one units together. Install the outdoor unit in the shade or not exposed to direct sunshine or direct radiation from high temperature heat source.
Page 45 electro-magnetic turbulence environment. In such (Top view) case, stop and start the system to clear the alarm. Side view Units installation Install the outdoor unit on a roof or in an area where people, except service engineers, cannot touch the outdoor unit.
Page 46 Units installation UNITS INSTALLATION RAS-5~16FSN(E), RAS8~12FXN(E) B1. Rear to rear installation RAS 5/8/10 (16 FSN) HP No limit to wall height No limit to wall height * A space of 900 mm is recommended for easier service work RAS-18~42FSN, RAS-16~32FX B2.
Page 47 Units installation UNITS INSTALLATION - Refer to rear installation (mm) No limit to wall height (Max. 3 units in a row) (Top view) Provide a distance of min. 1000 mm to the next unit � In case that there is a surrounding wall. - Installation in the same direction (mm) No limit to wall height...
Page 48 Units installation UNITS INSTALLATION - Rear to rear installation (case 2) (mm) No limit to wall height (Front) (Front) * A space of 900 mm is recommended for easier service work - Rear to rear installation (case 3) (mm) No limit to wall height (Front) (Front) (Top view)
Page 49 Units installation UNITS INSTALLATION ■ RAS-18~42FSN, RAS-16~32FXN In case of RAS 16 FXN/20/24/30 HP � No limit to wall height (Front) (Front) (Max. 2 units in a row) (Top view) Provide a distance of min. 1000 mm to the next unit - Refer to rear installation (mm) No limit to wall height...
Page 50 Units installation UNITS INSTALLATION / 34 - Rear to rear installation (case 1) (mm) No limit to wall height (Front) (Front) (Top view) * A space of 900 mm is recommended for easier service work - Rear to rear installation (case 2) (mm) No limit to wall height (Front)
Page 51 Units installation UNITS INSTALLATION Consideration to Seasonal Wind Consideration to Seasonal Wind Avoid the installation that the air intake side (Rear) of the Avoid the installation that the air intake side (Rear) of the unit is faced directly against a seasonal strong wind. unit is faced directly against a seasonal strong wind.
Page 52 Units installation (8) Dimensions of the Hood (Field-Supplied) • Following figures show the recommended dimensions of air discharge hood and air intake hood for 1.11.4. DIMENSIONS OF HOOD (Field supplied) the outdoor unit. Following ﬁgures show the recommended dimensions of air •...
Page 53 Units installation Attaching Example of Snow Protection Hood for RAS-5FSN Attaching Example of Snow Protection Hood for RAS-5FSN Snow Protection Hood Snow Protection Hood Rear Suction Hood Rear Suction Hood Left Suction Hood Right Suction Hood Right Suction Hood Left Suction Hood Safety Wire Rope to Prevent Safety Wire Rope to Prevent Overturning...
Page 54 Units installation (b) Hood for RAS-8~12FSNE/FXNE (b) Hoods for RAS-8FSN, RAS-10FSN and RAS-12FSN Snow Protection Hood for RAS-8FSN, RAS-10FSN and RAS-12FSN Screw 5-φ60 4-φ8 2-Slotted Hole 2-Slotted Hole Hole for Fixing Plate Safety Plate Fixing Hole to (to Prevent Overturning) Prevent Overturning 4-Slotted Hole 4-Slotted Hole...
Page 55 Units installation Attaching Example of Snow Protection Hood for RAS-8~12FSNE/FXNE Attaching Example of Snow Protection Hood for RAS-8FSN, RAS-10FSN and RAS-12FSN Snow Protection Hood Snow Protection Hood Left Suction Hood Right Suction Hood Right Suction Hood Left Suction Hood Safety Wire Rope to Prevent Safety Wire Rope to Prevent Overturning Overturning...
Page 56 Units installation (c) Hood for RAS-14FSN and RAS-16FSN (c) Hoods for RAS-14FSN and RAS-16FSN Snow Protection Hood for RAS-14FSN and RAS-16FSN 1165 Screw 5-φ60 4-φ8 Hole for Fixing Plate Hole for Fixing Plate 2-Slotted Hole 2-Slotted Hole (to Prevent Overturning) 1193 (to Prevent Overturning) 1147...
Page 57 Units installation Attaching Example of Snow Protection Hood for RAS-14/16FSN Attaching Example of Snow Protection Hood for RAS-14FSN and RAS-16FSN 1165 Snow Protection Hood Snow Protection Hood Left Suction Hood Right Suction Hood Left Suction Hood Right Suction Hood Safety Wire Rope to Prevent Safety Wire Rope to Prevent Overturning Overturning...
Page 58 Units installation (d) Hood for RAS-16FXN RAS-18~22FSN/FXN (d) Hoods for RAS-18FSN, RAS-20FSN and RAS-22FSN Snow Protection Hood for RAS-18FSN, RAS-20FSN and RAS-22FSN 1866 Part Name Q’ty 2-Slotted Hole Part Name Q'ty 1848 Right Plate Right Side Plate Left Plate Front Panel 1 Left Side Plate Details of Slotted Hole Details of Slotted Hole...
Page 59 Units installation Attaching Example of Snow Protection Hood for RAS-16FXN and RAS-18~22FSN/FXN Attaching Example of Snow Protection Hood for RAS-18FSN, RAS-20FSN and RAS-22FSN Snow Protection Hood Snow Protection Hood 1866 Left Suction Hood Left Suction Hood Safety Wire Rope to Prevent Right Suction Hood Safety Wire Rope to Prevent Right Suction Hood...
Page 60 Units installation (e) Hoods for RAS-(24~32)FSN/FXN (e) Hoods for RAS-24FSN, RAS-26FSN, RAS-28FSN, RAS-30FN and RAS-32FSN Snow Protection Hood for RAS-24FSN, RAS-26FSN, RAS-28FSN, RAS-30FSN and RAS-32FSN 2386 1206 1206 1184 1184 Part Name Q’ty Part Name Q'ty 2368 Right Plate Details of Slotted Hole Details of Slotted Hole Right Side Plate Left Plate...
Page 61 Units installation Attaching Example of Snow Protection Hood for RAS-(24~32)FSN/FXN Attaching Example of Snow Protection Hood for RAS-24FSN, RAS-26FSN, RAS-28FSN, RAS-30FSN and RAS-32FSN Snow Protection Hood Snow Protection Hood 2386 Safety Wire Rope to Prevent Left Suction Hood Left Suction Hood Safety Wire Rope to Prevent Overturning Right Suction Hood...
Page 62 (8) Dimensions of the Hood (Field-Supplied) • Following figures show the recommended dimensions of air discharge hood and air intake hood for the outdoor unit. • Apply steel plate of thickness 1mm for hood part, and of thickness 1.6mm for flange part and stay part. •...
Page 63 Units installation Attaching Example Snow Protecction Hood for RAS-36/42FSN Attaching Example of Snow Protection Hood 3346 Snow Protection Hood Snow Protection Hood Left Suction Hood Right Suction Hood Left Suction Hood Right Suction Hood Rear Suction Hood Rear Suction Hood Safety Wire Rope to Safety Wiring Rope to Prevent...
Page 64 Units installation UNITS INSTALLATION UNITS INSTALLATION Foundation Provision � Dimensions of the Hood (Field-Supplied) � 1.11.5 FOUNDATION PROVISION 1.10.4. FOUNDATION PROVISION � Concrete Foundations Following figures show the recommended dimensions of The height of the foundation should be 100~300mm air discharge hood and air intake hood for the outdoor Concrete foundations �...
Page 65 Units installation 1.11.6 CENTER OF GRAVITY  FSN(E) Model: RAS-5FSN Model: RAS-8FSNE Model: RAS-10/12FSNE Model: RAS-14/16FSN Model: RAS-18FSN Model: RAS-20/22FSN Model: RAS-24/26FSN Model: RAS-28/30/32FSN 1120 1010 Page 1-53 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 66 Units installation Model: RAS-36/42FSN  FXN(E) Model: RAS-8/10/12FXNE Model: RAS-16FXN Model: RAS-18FXN Model: RAS-20/22FXN Model: RAS-24/26FXN Model: RAS-30/32FXN Page 1-54 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 67 Units installation UNITS INSTALLATION 1.12. CH-UNIT 1.11. CH-UNIT The CH Unit is Installed indoors for the SET-FREE FXN(E) Factory Supplied Accessories - For CH-12.0N � system, between the outdoor unit and Indoor unit. The Accessory Q´ty Purpose combination of the CH Unit and indoor Unit is as follows. Flange For Gas (High) Piping Size...
Page 68 Units installation UNITS INSTALLATION 1.12.4. INSTALLATION Hook suspension bracket to the nut and washer of 1.11.4. INSTALLATION each suspension bolt, as shown below. Mounting the suspension bolts � Check that the nuts and washers are correctly fixed by the retainers of the suspension bracket. - Using the aforementioned dimension select the final location and installation direction of the indoor unit Description...
Page 69 Units installation UNITS INSTALLATION 1.13. OPTIONAL ACCESSORIES 1.11. OPTIONAL ACCESSORIES – The maximum amount of fresh air intake is the 20% of 1.13.1. Indoor Unit Air Flow Rate. In the case that fresh air that 1.11.1. FRESH AIR INTAKE FOR 4-WAY CASSETTE exceeds this amount is taken in, there is risk of water INDOOR UNITS (OACI-232) OR (PD-75) condensing on the lower surface of the drain-pan (Air...
Page 70 Units installation UNITS INSTALLATION 1.13.2. 1.13.3. 1.11.2. T-TUBE CONNECTING KIT FOR 4-WAY 1.11.3. BRANCH DISCHARGE FOR 4-WAY CASSETTE INDOOR UNITS (TKCI-232) CASSETTE INDOOR UNITS (PDF-23C3; PDF-46C3) The T-Tube Connecting Kit is intended to make easy the connections between the Fresh Air intake and the If there are obstacles, such as partitions, inside a room connection duct.
Page 71 Units installation UNITS INSTALLATION 1.13.4. 2. Perform sufficient insulation treatment for the attachment 1.11.4. DIRECTION AIR FLOW FOR 4-WAY portion between the connection flange and the indoor unit CASSETTE TYPE INDOOR UNITS main body as well as the attachment portion between the In the event that only three outlets are required, utilize the duct and the connection flange.
Page 72 Units installation UNITS INSTALLATION Specifications: The total height of the unit is increased by approximately 85 mm with the filter box installed. Therefore, pay attention Item For 4-way Cassette type to the installation space. For 4 Way Cassette Type RCI-1.0~6.0 Item Note that the packing dimension before compression is RCI-1.5~6.0...
Page 73 Units installation UNITS INSTALLATION To mount the filter, you need to use the Filter Box. Specifications: Item RCI-1.0~2.5 RCI-3.0~6.0 RCI-1.5~2.5 RCI-3.0~6.0 F-23L4-D F46-L4D Item F-23L4-D F-46-L4D Dust Collection 50 (Gravimetric Method) Efficiency Air Flow /min. 20.0 37.0 Initial Pressure Pa (mmAq) 15.7 (1.6) 16.7 (1.7) Loss...
Page 74 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 75 Piping installation Piping installation CONTENTS Piping installation ________________________________________________________ 2-1 2.1. General notes __________________________________________________________ 2-2 2.2. Piping work connection considerations _______________________________________ 2-3 2.2.1. Piping materials _________________________________________________________2-3 2.2.2. Three principles on refrigerant work __________________________________________2-4 2.2.3. Suspension of refrigerant piping _____________________________________________2-5 2.2.4. Tightening torque _________________________________________________________2-5 2.2.5 Brazing work ____________________________________________________________2-7 2.3.
Page 76 Piping installation DRAIN PIPING 2.1 GENERAL NOTES 2.1. GENERAL � � CAUTION: NOTE: – Do not create an up-slope for the drain pipe. If you do Install the drainage in accordance with national so, the drain water will flow back to the unit. Then, codes and local codes.
Page 77 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.2 PIPING WORK CONNECTION CONSIDERATIONS 10.3. PIPING WORK CONNECTION CONSIDERATIONS 2.2.1 PIPING MATERIALS 10.3.1. PIPING MATERIALS - Refrigerant Pipes thickness are indicated in subchapter 10.3.4 1. Prepare locally-supplied copper pipes. Piping Connection Select the piping size with the correct thickness and �...
Page 78 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE Insulation � � NOTE: Attach insulation packet with Multi-Kit to each branch When polyethylene foam is applied, a thickness of utilizing vinyl tape. Also attach insulation to field supplied 10 mm for the liquid piping and 15 mm to 20 mm for piping for prevention of the capacity decrease according to the gas piping is recommended.
Page 79 RAS-30FSN (As for wrenches of 5 mm and 10 mm, use field- Piping installation supplied wrenches.) REFRIGERANT PIPING AND REFRIGERANT CHARGE FXN Allen key Size (mm) Gas Valve Gas Valve Model Liquid Valve High RAS-8FXN 2.2.3. SUSPENSION OF REFRIGERANT PIPING The required tightening torque is as follows: The required tightening torque is as follows: 10.3.3.
Page 80 Piping installation FSN(E) / FXN(E) Flare nut / Bolt - FXN(E) Model Liquid Gas valve Gas valve valve low (N.m) high (N.m) Ref. pressure Allen key (to (N.m) (Tighten the cap open or close with indicated spindle valve) RAS-8FXN torque. Attach 44.1 this after work) RAS-10FXNE...
Page 81 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.2.5 BRAZING WORK Allen key size - FSN(E) FSN Allen key Size (mm) 10.3.5. BRAZING WORK Model Liquid valve (mm) Gas valve (mm) Model Liquid Valve Gas Valve 1. The most important work in the refrigerant piping work is RAS-5FSN RAS-5FSN brazing work.
Page 82 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.3. INDOOR UNITS AND COMPLEMENTARY SYSTEMS 2.3.1 2.2. INDOOR UNITS 10.4. INDOOR UNIT PIPING WORK CONNECTION   Refrigerant piping Drain piping 10.4.1. RCI – 4 WAY CASSETTE TYPE 10.4.3. RPC – CEILING TYPE 2.2.1.
Page 83 Insulation for Connection Parts: The connection part must be insulated by the field supplied insulation materials. Piping installation Nitrogen: For Leakage Test and Brazing DRAIN PIPING CTION 2.3.2 RCIM 2.2. INDOOR UNITS   Refrigerant piping Drain piping 9.4.2. RCIM-4WAY CASSETTE TYPE 2.2.1.
Page 84 Piping size Piping installation mm (in) � Gas Piping � Liquid Piping Drain Piping RCI-1.0/1.5 Ø 12.70 (1/2) ∅ 6.35 (1/4) RCI-2.0 Piping size DRAIN PIPING ∅ 15.88 (5/8) RCI-2.5 ∅ 9.53 (3/8) 2.3.3 mm (in) Gas Piping Liquid Piping ...
Page 85 Piping installation EFRIGERANT PIPING AND REFRIGERANT CHARGE REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.3.4 TION  Refrigerant piping After select the piping direction proceeded to knockout 10.4 10.4.3. RPC – CEILING TYPE selected hole, install pipes and seal the piping with the Piping position factory supplied insulation as indicated below: Posit...
Page 86 Piping installation  Drain piping – Insert the drain plug into the drain boss on the right – 2.2.4. side by using a driver as shown below. – The standard direction of drain pipe connection is to the Drain plug Drain connection right side looking at the unit from the discharge grilles.
Page 87 Piping installation DRAIN PIPING REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.3.5 – Do not connect the drain pipe with the sanitary piping, the sewage piping or any other drainage piping.  After select the piping direction proceeded to knockout 10.4.4. RPI – IN-THE-CEILING TYPE Refrigerant piping selected hole, install pipes and seal the piping with the –...
Page 88 Rear-side piping Rear-side piping Piping installation – After completing the installation of the drain pipe, pour water into the drain pan and make sure that the DRAIN PIPING water flows smoothly as explained in section 2.1. 2.2.5.  Drain piping –...
Page 89 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.3.6  Refrigerant piping When bending the tubes, firmly fix the tube at the heat 10.4.5. RPK – WALL TYPE exchanger side. Piping Direction for the Indoor Unit: � RPK-0.8 ~ 4.0 Three directions of piping connection to the Indoor Unit Contour of the Unit can be performed;...
Page 90 Piping installation  Drain piping 2.2.6. Right side connection Right side connection � – The standard direction of drain piping connection is to the right side when the unit is viewed from the discharge grilles. However, the connection can be performed from the left side or the rear side. Contour of the unit Ø...
Page 91 Make a hole by removing the knock-out plate at the Liquid Piping 1.0/1.5 rear side. Piping installation Piping size mm (in) Gas Piping Liquid Piping ∅ 12.70 (1/2) RPK-0.8 � 2.3.6 RPF(I) ∅ 6.35 (1/4) CAUTION: RPK2.0 Do not twist the pipe when bending the tube. ∅...
Page 92 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.3.8 CH-UNITS 10.4.7. CH UNIT Piping Connection NOTE: The factory-supplied flange should be welded with the Position of piping connection is shown in SM0032. connection pipe before connecting the valve. Mount the Insulation’s after the pipe brazing. Take particular Connect the accessory reducer or flanges as shown in the care upon connecting flange so that Insulation is next figures.
Page 93 Piping installation 2.4 OUTDOOR UNITS 2.4.1. FACTORY SUPPLIED PIPE ACCESSORIES Accessory Quantity Gasket Pipe flange of refrigerant gas piping Pipe with flare nut of refrigerant gas piping Pipe with flare nut of refrigerant liquid piping Rubber bush For connection hole of operation wiring For connection hole of power source wiring...
Page 94 REFRIGERANT PIPING AND REFRIGERANT CHARGE Piping installation 10.5.2. POSITION OF PIPING CONNECTION 2.4.2. POSITION OF PIPING CONNECTION FSN(E)/FXN(E) MODELS � Pipes can be connected from 3 directions – Remove the service cover as shown in fig. below before piping connection. Front Side Front Side Rear Side...
Page 95 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE RAS-8~12FXN(E) RAS-16~32FXN RAS-8/10FXN(E) RAS-16~30FXN REFRIGERANT PIPING AND REFRIGERANT CHARGE RAS-8/10FXN(E) RAS-16~30FXN FXN(E) Models Model The position of the connecting pipes is the following for each Outdoor Unit type:    Refrigerant Gas Refrigerant Gas Refrigerant Liquid �...
Page 96 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE FSVNE MODELS Pipes can be connected from four directions as shown. Remove the service cover as shown in fig. below before Make a hole at the front pipe cover or rear pipe cover piping connection.
Page 97 REFRIGERANT PIPING AND REFRIGERANT CHARGE Piping installation 10.5.3. FLANGE PIPING CONNECTION FOR FSN(E)/FXN(E) MODELS 2.4.3 FLANGE PIPING CONNECTION FOR FSN(E)/FXN(E) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 (ID) Inner Diameter FSN(E) Models Dimensions (mm) Dimensions (mm) Outdoor Unit Model Figure ØD(ID) ØE(ID)
Page 98 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.4.4 PIPING CONNECTION FOR FSN(E)/FXN(E) 2.4.5 PIPING CONNECTION FOR FSVNE 10.5.4. PIPING CONNECTION FSN(E)/FXN(E) 10.5.5. PIPING CONNECTION FSVNE – For RAS-5~12FSN(E) - For RAS-5/8 HP FSN(E) � Select the most suitable piping direction. �...
Page 99 Piping installation REFRIGERANT PIPING AND REFRIGERANT CHARGE 2.4.6 VACUUM AND REFRIGERANT CHARGE 10.7. VACUUM AND REFRIGERANT CHARGE Evacuation and refrigerant charging procedure should be Nitrogen tank Outdoor Unit performed according to the following instructions: (For Air Tight Test & Nitrogen Blow during Brazing) Stop valve (Liquid Line) �...
Page 100 – Prepare a PVC pipe with an outer diameter of 18.5 Piping installation – Fasten the pipe to the drain hose with an adhesive. Drain hose 2.3. DRAIN DISCHARGING BOSS FOR OUTDOOR UNIT (DBS-26) – Insulate the drain pipe after connecting the drain hose as shown.
Page 101 Electrical wiring Electrical wiring This chapter describes the procedures that you must follow to create the electrical wiring connections for the Set-Free FSN(E)/FXN(E)/FSVNE outdoor units and for the full range of Hitachi indoor units. CONTENTS ELECTRICAL WIRING ___________________________________________________ 3-1 3.1.
Page 102 Electrical wiring ELECTRICAL WIRING ELECTRICAL WIRING 3.1. GENERAL CHECK 3.1. GENERAL CHECK � 2. Following the Council Directive 89/336/EEC and its ATTENTION: amendments 92/31/EEC and 93/68/EEC, relating to – Before installing the electrical wiring or before electromagnetic compatibility, next table indicates �...
Page 103 Electrical wiring Earth terminal wiring ELECTRICAL WIRING Make sure that the earth ELECTRICAL WIRING wiring is connected OUTDOOR UNIT Cord clamp RAS-24~42 (fixed on valve stay) RAS-24~30 HP Instructions for wiring and electrical Board RAS-24~42 HP RAS-24~30 HP Instructions for wiring and electrical Board Hermetically seal the entry of conduit tube by using putty or a similar...
Page 104 Electrical wiring ELECTRICAL WIRING FSN(E)/FXN(E) � DSW2: Capacity setting FSN(E)/FXN(E) �  DSW2: Capacity setting Position of DIP switches for RAS-24~42FSN; No setting is required. Before the shipment, each outdoor Position of DIP switches for RAS-24~30FSN; No setting is required. Before the shipment, each outdoor RAS-16~32FXN unit is set as shown below.
Page 105 Electrical wiring ELECTRICAL WIRING � DSW5: Setting for the emergency operation of the � DSW10: Setting for transmitting compressor The setting for transmitting is required for the cancellation The setting for the emergency operation of the compressor of end terminal resistance. is not required.
Page 106 Electrical wiring ELECTRICAL WIRING � DSW6: Piping Length and High Difference Setting � DSW4: Refrigerant Cycle No. Setting In the same refrigerant cycle, set the same refrigerant Setting before the shipment and total cycle No. for the outdoor unit and the indoor units as length <...
Page 107 1 and 2 of the TB1, the fuse on the PCB Setting before the shipment (400V) is blown out. Electrical wiring If that is the case, first connect the wiring to the TB1. Then, turn on #2. 3.3. ELECTRICAL WIRING FOR THE INDOOR UNIT 3.5.
Page 108 Earth Screw Electrical wiring Remote Control Switch Cable Transmission Wiring ELECTRICAL WIRING Power Source Wiring 3.3.1. ELECTRICAL WIRING CONNECTION 3.5.1. ELECTRICAL WIRING CONNECTION RCI units � – The electrical wiring connection for the indoor unit is shown in the following figures. For the intermediate Power Source connection between the indoor unit and the air panel, refer to chapter 1.2.
Page 109 Electrical wiring ELECTRICAL WIRING RCIM (cont.) � RCD units Connector for Auto Swing Motor The 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 1.3.
Page 110 Electrical wiring ELECTRICAL WIRING RPC units � RPI-1.5 The electrical wiring connection for the indoor unit is shown in the following figures. RCS PC-P1HE Optional Transmission Knockout hole wires Connector for the wirings Grille Power wires RCS PC-2H2 Optional Electrical box Cord Clamp Electrical Box Service cover...
Page 111 Electrical wiring ELECTRICAL WIRING  RPK Units The following picture provides further details of the wiring The following figure provides further details of the wiring � RPK units connection for RPK-0.8~4.0FSNM units: connection for RPK-1.5~4.0FSNM units: The electrical wiring connection for the indoor unit is shown in the following figures.
Page 112 Electrical wiring ELECTRICAL WIRING RPF\RPFI units � 3.3.2 3.5.2. SETTING THE DIP SWITCHES FOR THE INDOOR UNIT Remove the front panel and the side panel. – The wiring from the left-rear side to the RPF is shown � Quantity and position of the DIP switches below.
Page 113 Electrical wiring ELECTRICAL WIRING ELECTRICAL WIRING RPK-FSN1M DSW2: optional functions setting (only RPK FSNM) No setting is required. Use this switch for setting DSW5 the optional functions as shown below. RPK-FSN1M DSW2: optional functions setting (only RPK FSNM) DSW2 DSW3 No setting is required.
Page 114 DSW5: setting the refrigerant cycle number DSW7: Fuse Recover (RPK-FSN1M only) Electrical wiring Setting the refrigerant cycle number is required. ELECTRICAL WIRING No setting is required. Before the Before the shipment, all the setting positions are OFF. shipment, all the setting positions are (The refrigerant cycle number is 0).
Page 115 Electrical wiring ELECTRICAL WIRING KPI units (Total Heat Exchanger) The electrical wiring connection for the KPI unit is shown in the following figures. Through the wiring connection hole in the cabinet, connect the cable of the remote control switch or an optional extension cable to the connectors on the printed circuit board inside the electrical box.
Page 116 Electrical wiring ELECTRICAL WIRING Simultaneous operation (Set-Free + Total Heat Exchanger) POWER SUPPLY INDOOR UNIT TOTAL HEAT EXCHANGER INDOOR UNIT Simultaneous operation (Set-Free + Total Heat Exchanger) Example for PC-2H2 POWER SUPPLY INDOOR UNIT INDOOR UNIT TOTAL HEAT EXCHANGER Page 3-16 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 117 Electrical wiring ELECTRICAL WIRING ECONOFRESH KIT RPI PCB Connector RPI PCB Connecto r The electrical wiring connection for the Econofresh unit CN17 is shown in the following figures. AS motor AS Motor Mount the outdoor thermistor at a position near the DSW6 outdoor air inlet.
Page 118 Electrical wiring ELECTRICAL WIRING 3.4. COMMON WIRING – Connect the operating line to the units in the same refrigerant cycle. (You must connect the refrigerant 3.4.1. ELECTRICAL WIRING BETWEEN THE line to the indoor units that have the refrigerant piping INDOOR UNIT AND THE OUTDOOR UNIT connected to the same outdoor unit).
Page 119 Electrical wiring ELECTRICAL WIRING � FSN(E) Models: RAS-5FSN RAS-8FSN(E) RAS-10FSN(E) RAS-12FSN(E) RAS-14FSN Models: RAS-5FSN RAS-16FSN RAS-8FSN(E) RAS-18FSN RAS-10FSN(E) RAS-20FSN No.0 system No.1 system No.2 system RAS-16FSN RAS-22FSN outdoor unit outdoor unit outdoor unit RAS-20FSN RAS-24FSN RAS-24FSN RAS-26FSN RAS-30FSN RAS-28FSN RAS-30FSN RAS-32FSN RAS-36FSN RAS-42FSN...
Page 120 Electrical wiring ELECTRICAL WIRING � FXN(E) Models: RAS-8FXN(E) RAS-10FXN(E) Models: RAS-8FXN(E) No.0 System No.1 System No.2 System RAS-12FXN(E) RAS-10FXN(E) Outdoor Unit Outdoor Unit Outdoor Unit RAS-16FXN RAS-16FXN RAS-20FXN RAS-20FXN RAS-22FXN RAS-24FXN RAS-24FXN RAS-26FXN RAS-30FXN RAS-30FXN RAS-32FXN Earth Leakage Breaker No.1 System No.0 Group No.0 Group CH Unit...
Page 121 The above wire sizes marked with � are selected at the maximum current of the unit according to the RAS-12FXNE 22.2 A 2.5 mm² 2 mm² RAS-24FXN(E) Retardant Polyflex Wire) manufactured by HITACHI Cable Ltd. Japan. 50 A 5.5 mm² RAS-16FXN 32.8 A 6 mm²...
Page 122 Electrical wiring ELECTRICAL WIRING If 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 MLFC EN60 335-1 (at cable Temp. Of 60 °C) Wire Size Wire Size Current i (A) Current i (A)
Page 123 – Maximum Indoor Units To Be Connected: 2 Units per an old transmission. cycle and 128Units per H-LINK system (in case of all SET FREE Series). Application � – Maximum Wiring Length: Total 1000m (including The new H-LINK wiring system requires only two CS-NET).
Page 124 Electrical wiring ELECTRICAL WIRING - Line connection for each floor - In case that H-LINK is not applied when you are installing the electrical wiring Outdoor units Outdoor unit Indoor units Indoor units CSNET-WEB CS-NET � NOTE: The maximum quantity of units to be connected is 16 outdoor units and 128 indoor units.
Page 125 Electrical wiring ELECTRICAL WIRING Internal layout � 3.4.3. PSC-5HR Terminal board Installation of PSC-5HR � for transmission Ring core Refer to "Installation & Operation Manual of PSC-5HR H-LIN K DSW1 to the unit to (PMML 0094A)" for details concerning the safety Power source be connected summary and the installation work.
Page 126 Electrical wiring ELECTRICAL WIRING Fuse recovery setting Test run � � If the fuse is blown out, you can recover by setting the No. 2 pin of DSW1 (at CN1 side) at the ON side or by After completing the installation of the H-LINK, you need setting the No.
Page 127 Electrical wiring 3.5 ELECTRICAL WIRING DIAGRAMS This sub-chapter shows the Electrical Wiring Diagram for each unit of the new Hitachi Set Free FSN(E)/FXN(E)/FSVNE Series. Unit model Page number RCI-1.0~6.0FSN1E RCIM-1.0~2.0FSN RCD-1.0~3.0FSN RCD-4.0~6.0FSN RPC-2.0~6.0FSNE RPI-0.8~1.5FSN1E RPI-2.0~6.0FSN1E RPI-8.0/10.0FSNE RPK-1.0/1.5FSN1M RPK-0.8/2.0FSNM RPK-2.5/4.0FSNM RPF(I)-1.0~2.5FSNE CH-UNIT (4.0/8.0/12.0)
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Page 153 Remote control switch installation This chapter describes the procedures that you must follow to install the optional remote control switches that work with the Set-Free FSN(E)/FXN(E)/FSVNE outdoor units and the full range of Hitachi indoor units. CONTENTS INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH ________________ 4-1 4.1.
Page 154 Also, if you operation switches do not function well, turn OFF use long cables, transmission errors may occur. the main power source. Then, contact your HITACHI distributor or your HITACHI dealer. – DO NOT run any transmission cable and any signal cable along the power supply wire –...
Page 155 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH Standard capable distance for receiving the air panel Standard efficient distance for receiving the air panel signal for the wireless control. signal for the wireless control. (Example with the 4-way cassette) (View from above) (Example with the 4-way cassette) Conditions:...
Page 156 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.1.3. INSTALLATION PROCEDURE Band (field-supplied) Cable – Insert the edge of the flat-headed screwdriver into the dent parts at the bottom of the holding bracket. Next, push and turn the screwdriver. Then, remove the remote control switch from the holding bracket as shown in the figure below.
Page 157 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH – Mounting procedures. Max. 16 indoor units 1. Insert the hooks of the remote control switch into the holes at the top of the holding bracket. Remote control Electrical box Electrical box Remote control 2.
Page 158 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH If multiple indoor units are controlled simultaneously, set the refrigerant cycle number and the address of the indoor units as shown below. Address of the indoor units: Master unit unit unit unit...
Page 159 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.2.4. ELECTRICAL WIRING � Standard wiring Band Ring core Lead the cable through the groove Insert the connector Remote control switch cable If you are using the switch box: �...
Page 160 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH There are optional cables of 0.75 mm² wire. The cables � have different lengths. The cables are also fitted with CAUTION: connectors. If multiple indoor units are controlled simultaneously, set the refrigerant cycle number and the address of Remote control cable (optional) the indoor units as shown below.
Page 161 INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.3. INSTALLATION OF THE CENTRAL STATION <PSC-5S> 4.3.1. ACCESSORIES Holding bracket Check the contents and the number of accessories in the packing. HITACHI GROUP Two screws M4x16L. for fixing Central station the holding bracket onto the wall �...
Page 162 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.3.4. ELECTRICAL WIRING Wiring connection � You can connect up to eight central stations to the H-LINK. To be connected to the terminal boards 1 and 2 of the indoor unit or the Outdoor unit outdoor unit H-LINK...
Page 163 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH Otherwise, the display is the following: � System layout Each central station can control up to 16 indoor units or 16 groups of indoor units. (One group of indoor units is all the units that are controlled by the same remote control switch).
Page 164 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH � � The condition of the master unit setting for each CAUTION: group: (� is ON: The master unit is set; � is OFF: - You can set only one indoor unit as the master unit in The master unit is not set).
Page 165 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH � CAUTION: � Instructions for setting the slave unit – You can set up to 15 slave units in one group. Set the slave unit for each group as follows. (The maximum in one group is 16 units, including the master unit).
Page 166 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 2. Simultaneous operation, pulse signal; simultaneous 4.3.5. INPUT/OUTPUT FUNCTION stoppage, pulse signal The central station has two input functions and two output This is a remote ON/OFF function that uses the pulse functions as shown below.
Page 167 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4. Demand � The group that is already set with the demand This is a remote thermostat signal for the selected units. control is displayed: (� is ON: the demand is set; � Only the units with the DEMAND indication will follow this is OFF: the demand is not set).
Page 168 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 6. Simultaneous alarm output 2. Display of the option setting mode You use this function in order to check the alarm When the central station changes to the option setting status of the units that are controlled by the central mode, the LCD of the central station is the following.
Page 169 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 2. Initialization 4.3.7. INITIALIZATION OF THE CENTRAL STATION When the central station changes to the initialization mode, the LCD of the central station is as shown The instructions for initializing the group setting and the below.
Page 170 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.4. INSTALLATION OF THE 7-DAY TIMER <PSC-5T> 4.4.1. ACCESSORIES The packing contains the following items: HITACHI GROUP Holding bracket Two screws M4x16L. Cable (1m) Control timer for fixing the holding bracket onto the wall.
Page 171 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 3. Lead the cable through the groove. 4. Attach the timer onto the holding bracket. Attach the stopper to the cable at the inside of the draw-out hole Twisted pair cable Cable Step 1: Insert the hooks of the timer to the...
Page 172 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 3. Attach the holding bracket onto the switch box. 2. If you are using a timer with PC-2H2: Transmission cable between outdoor unit and CN13 indoor unit (H-LINK) ↑ Fix the holding bracket with the mark "UP"...
Page 173 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.4.5. SETTING THE DIP SWITCHES Set the two DIP switches on the PCB as follows. (The factory settings of the DSW1 and the DSW2 are all OFF). Setting of the DSW1 (For the address setting) Address Setting of the DSW1...
Page 174 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.5. INSTALLATION OF THE RECEIVER KIT <PC-RLH8> (for RCI-FSN1E Units) 5) Draw out the connecting cable from the wiring The packing contains the following parts. Check the � hole of the indoor unit, and lead the cable over the contents and the number of the parts.
Page 175 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 8) Hook the other fixing nails (3 positions) at the square holes of air panel. � NOTE: When removing the receiver kit after installing the air panel: – The corner position of the receiver kit can be lifted when a coin or a "-"...
Page 176 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.6. INSTALLATION OF THE RECEIVER KIT <PC-RLH9> (for RCD-FSN Units) 5. Remove the panel of the electrical box of the indoor unit. Then, connect the cable to the terminals A and B of the The packing contains the following items.
Page 177 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.7. INSTALLATION OF THE EXTERNAL RECEIVER KIT <PC-RLH11> The packing contains the following items. Check the contents and the number of items in the packing. 2) Cut one of the knockout holes (*) at the panel. Mod.
Page 178 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 2) Insert the cable into the rigid metal conduit tube. 6. Remove the panel of the electrical box of the indoor unit. Then, connect the cable to the terminals A and B of the white terminal board.
Page 179 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 5 Draw out the connecting cable from the wiring hole of � NOTE: the indoor unit, and lead the cable over the to the When removing the receiver kit after installing the air installing position of the receiver kit.
Page 180 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.9. HARC-BX(A/B) 4.9.1. PART NAMES 4.9.2. INSTALLATION PROCEDURE Each part name of the HARC-BX E is shown in the next 1. Install the HARC-BX E by keeping the screw terminal figure.
Page 181 (*) Make sure that you apply the twisted cables. respectively. In order that PCB would be able to communicate with unit it must be connected to same H-LINK than unit. Recommended types of cables: Japan Cable Integral Hitachi Cable Japan Cable Industrial power Co., Ltd. Co., Ltd. Associations...
Page 182 Remote control switch installation INSTALLATION OF THE OPTIONAL REMOTE CONTROL SWITCH 4.9.5. TEST RUN 4.9.6. MAINTENANCE AND SERVICE � Self-Inspection of the HARC-BX E � Setting the DIP switch In order to identify the abnormal operation of the HARC-BX E, 1.
Page 183 CSNET-WEB Remote control switch Installation & Operation Manual installation 4.10. CSNET WEB INTERFACE CONNECTION 1. Safety Summary   Caution Attention Do not connect voltage input to the control system before Install CSNET WEB away from possible sources of preparation for test run has been correctly completed. electromagnetic waves.
Page 184 Remote control switch CSNET-WEB installation Installation & Operation Manual 4.10.2. SPECIFICATIONS 3. Speciﬁcations Hardware Speciﬁcations Components Speciﬁcations Power supply AC 230 V 1~ ±10% (50Hz) Consumption 10W (maximum) Outer dimensions Width: 240 mm, Depth: 204 mm, Height: 74.5 mm Weight 1.94 kg Assembling conditions Indoors (in a control panel or desktop)
Page 185 Remote control switch CSNET-WEB installation Installation & Operation Manual    Danger: Caution: Attention: - The signals’ cables should be as - Always disconnect the power - Before applying power and turning short as possible. Keep a distance supply for CSNET-WEB when on CSNET-WEB you must ensure of more than 150 mm from other handling the machine, in order to...
Page 186 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 187 Control system Control system This chapter presents the control system ﬂowcharts for the Set-Free FSN(E)/FXN(E)/FSVNE operations. CONTENTS CONTROL SYSTEM _____________________________________________________ 5-1 5.1. Device Control System ___________________________________________________ 5-2 5.1.1. RAS 5~42FSN(E) Refrigerant Cycle Control ___________________________________5-2 5.1.2. RAS 8~32FXN(E) Refrigerant Cycle Control ___________________________________5-4 5.1.3.
Page 188 Control system CONTROL SYSTEM 5.1. DEVICE CONTROL SYSTEM 5.1.1. RAS-5~42FSN(E) REFRIGERANT CYCLE CONTROL 5.1.1. RAS 5~30FSN(E) REFRIGERANT CYCLE CONTROL Cooling process Heating process Defrost operation Control subject Purpose Contents Purpose Contents Contents 1. 15 Hz/HP 1. 15 Hz/HP Inverter frequency 1.
Page 189 Control system CONTROL SYSTEM Cooling process Heating process Defrost operation Control subject Purpose Contents Purpose Contents Contents 1. 2.3≤Pd≤2.9MPa* CONTROL SYSTEM Outdoor fan 1. 2.3�Pd�2.7 1. Fix according 1. PWM control Stoppage 2.5≤Pd≤2.9MPa** (MPa) to the outdoor by DC motor PWM control temperature and outdoor Temp.
Page 190 Control system CONTROL SYSTEM 5.1.2. RAS-8~32FXN(E) REFRIGERANT CYCLE CONTROL 5.1.2. RAS 8~30FXN(E) REFRIGERANT CYCLE CONTROL Only Cooling, Mainly Cooling Only Heating, Mainly Heating Defrosting Control Subject Purpose Contents Purpose Contents Contents Inverter frequency For controlling 1. Collection according For controlling Pdo is setted by piping 1.
Page 191 Control system CONTROL SYSTEM Only Cooling, Mainly Cooling Only Heating, Mainly Heating Defrosting Control Subject Purpose Contents Purpose Contents Contents Solenoid valve for For Keeping inner 1. Pd Close Close liquid-gas bypass Pre, of liquid pipe 2. Piping lift (SVB, SVC) 3.
Page 192 Heat exchanger mode control (FXN(E) Series only) � � 8 FXN(E)/10 FXN(E) Control system CONTROL SYSTEM Simultaneously Cooling mode Heating mo Heat exchanger mode cooling/heating mode Mainly Mainly Heat exchanger mode control (FXN(E) Series only) � Cooling 2 Cooling 1 Heating 1 Cooling Heating...
Page 193 Control system CONTROL SYSTEM 5.1.3. RAS 3~5FSVNE REFRIGERANT CYCLE CONTROL Cooling process Heating process Defrost operation Control subject Purpose Contents Purpose Contents Contents Inverter frequency 1. Total operation 1. 15 Hz/HP 1. Total operation 1. 15 Hz/HP Fixed frequency of the compressor capacity of the capacity of the indoor unit...
Page 194 Control system CONTROL SYSTEM 5.2. INDOOR UNIT PCB 5.2.1. LAYOUT OF THE PRINTED CIRCUIT BOARD FOR RCI � PCB drawing The PCB in the indoor unit operates with three types of DIP switches, and one rotary switch. The location is as follows: LED INDICATION This LED indicates the...
Page 195 Control system CONTROL SYSTEM 5.2.2. LAYOUT OF THE PRINTED CIRCUIT BOARD FOR RCD 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 LED1...
Page 196 Control system CONTROL SYSTEM 5.2.3. LAYOUT OF THE PRINTED CIRCUIT BOARD FOR RPI-0.8~6.0, RPC, RPF(i) 5.2.3. LAYOUT OF THE PRINTED CIRCUIT BOARD FOR 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.
Page 197 Control system CONTROL SYSTEM 5.2.4. 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...
Page 198 Control system CONTROL SYSTEM 5.2.5. LAYOUT OF THE PRINTED CIRCUIT BOARD FOR RPK FSNM � 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: LED INDICATION This LED indicates the LED1...
Page 199 Control system CONTROL SYSTEM 5.2.6. LAYOUT OF THE PRINTED CIRCUIT BOARD (ONLY RPK-1.5FSN1M) � 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: LED INDICATION LED1 Green...
Page 200 Control system CONTROL SYSTEM 5.3. COMPLEMENTARY SYSTEM 5.3.1. 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 and the outdoor unit...
Page 201 Control system CONTROL SYSTEM 5.4. OUTDOOR UNITS PCB 5.4.1. FSVNE LED INDICATION Power source for PCB1 LED1 Normal condition: activated (red) Abnormal condition: deactivated SEG1 SEG2 This LED2 indicates the transmission status between DSW3 DSW4 PCB1 and PCB3 LED2 (green) Normal condition: flickering DSW2...
Page 202 Control system CONTROL SYSTEM 5.4.2. FSN(E)/FXN(E) PCB drawing � The PCB in the outdoor unit is operating: RAS-5~22FSN(E), RAS-8~12FXN(E) RAS- 24~42FSN, RAS-16~32FXN 5~20 FSN(E)/FXN(E) 24/30 FSN/FXN DIP SWITCH INDICATION SWITCH INDICATION DSW1 Setting of the outdoor unit number Manual defrost operation switch PSW1 The defrost operation is manually available under the Setting of the capacity code...
Page 203 Control system CONTROL SYSTEM 5.5. PROTECTION AND SAFETY CONTROL Compressor protection The following devices and their combinations protect the compressor: This switch cuts out the operation of the compressor when the discharge pressure exceeds High-Pressure switch the setting. This band heater protects against the oil carry-over during the cold starting, as the band heater is Oil heater energized while the compressor is stopped.
Page 204 compressor: This switch cuts out the operation of the compressor when the discharge pressure exceeds High-Pressure switch Control system the setting. This band heater protects against the oil carry-over during the cold starting, as the band heater is Oil heater energized while the compressor is stopped.
Page 205 Control system CONTROL SYSTEM 5.7. STANDARD OPERATION SEQUENCE 5.7.1. COOLING PROCESS FSN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (14, 16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (28, 30, 32, 36, 42HP) (16~42HP)
Page 206 Control system CONTROL SYSTEM Cooling process (FSN(E), cont.) � (16~32HP) Page 5-20 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 207 Control system CONTROL SYSTEM FXN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (28, 30, 32HP) (16~32HP) (30/32HP)
Page 208 Control system CONTROL SYSTEM Cooling process (FXN(E), cont.) � (16~32HP) Page 5-22 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 209 Control system CONTROL SYSTEM FSVNE � I.U.: Indoor unit O.U.: Outdoor unit (*) Td: Top compressor temp Page 5-23 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 210 Control system CONTROL SYSTEM Cooling process (FSVNE, cont.) � Stop of CMC1 Power to CMC1 Power to CH1: OFF Page 5-24 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 211 Control system CONTROL SYSTEM 5.7.2. DRY OPERATION FSN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (30, 32, 36, 42HP) (16~42HP) (30/42HP)
Page 212 Control system CONTROL SYSTEM Dry operation (FSN(E), cont.) � (16~42HP) Page 5-26 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 213 Control system CONTROL SYSTEM FXN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (30, 32HP) (16~32HP) (32HP)
Page 214 Control system CONTROL SYSTEM Dry operation (FXN(E), cont.) � (16~32HP) Discharge pressure value (MPa) Discharge Pressure Value (MPa) 8FXNE 16FXN 24FXN 10FXNE 18FXN 26FXN 8FXN(E) 16FXN(E) 24FXN(E) 12FXNE 20FXN 30FXN 10FXN(E) 20FXN(E) 30FXN(E) 22FXN 32FXN Cooling 2.65 Cooling 2.65 Mainly 2.85 Mainly cooling 2.85...
Page 215 Control system CONTROL SYSTEM FSVNE � I.U.: Indoor unit O.U.: Outdoor unit Page 5-29 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 216 Control system CONTROL SYSTEM Dry operation (FSVNE, cont.) � Page 5-30 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 217 Control system CONTROL SYSTEM 5.7.3. HEATING PROCESS FSN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (14, 16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (28, 30, 32, 36, 42HP) (30/42HP) (24~42HP)
Page 218 Control system CONTROL SYSTEM Heating Process (FSN(E), cont.) � Page 5-32 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 219 Control system CONTROL SYSTEM FXN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (30, 32HP) (30/32HP) (24~32HP)
Page 220 Control system CONTROL SYSTEM Heating Process (FXN(E), cont.) � Page 5-34 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 221 Control system CONTROL SYSTEM FSVNE � I.U.: Indoor unit O.U.: Outdoor unit Page 5-35 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 222 Control system CONTROL SYSTEM Heating Process (FSVNE, cont.) � EVJ: (Liquid Injection Expansion Valve) (1) Possibility can open for definite periode of time when outdoor temp �-6 °C at compressor start Page 5-36 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 223 Control system CONTROL SYSTEM 5.7.4. COOLING AND HEATING SIMULTANEOUSLY PROCESS FXN(E) � I.U.: Indoor unit O.U.: Outdoor unit Power to CH2: ON (8, 10, 12HP) Power to CH2, CH3: ON (16HP) Power to CH2, CH3, CH4: ON (18, 20, 22HP) Power to CH2, CH3, CH4, CH5: ON (24, 26HP) Power to CH2, CH3, CH4, CH5, CH6: ON (30, 32HP) (16~32HP)
Page 224 Control system CONTROL SYSTEM Cooling and Heating Simultaneously Process (FXN(E), cont.) � Page 5-38 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 225 Control system CONTROL SYSTEM Cooling and Heating Simultaneously Process (FXN(E), cont.) � Page 5-39 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 226 Control system CONTROL SYSTEM 5.7.5. DEFROST OPERATION CONTROL FSN(E)/(FXN(E) � RAS-16~42FSN only) RAS-16~42FSN only) Page 5-40 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 227 Control system CONTROL SYSTEM FSVNE � Page 5-41 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 228 Control system CONTROL SYSTEM 5.8. STANDARD CONTROL FUNCTIONS 5.8.1. FREEZING PROTECTION CONTROL DURING THE COOLING PROCESS OR THE DRY OPERATION Page 5-42 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 229 Control system CONTROL SYSTEM 5.8.2. OVERHEATING PROTECTION CONTROL OF THE OUTLET TEMPERATURE Page 5-43 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 230 Control system CONTROL SYSTEM 5.8.3. CONTROL OF EXPANSION VALVE FOR THE PLATE HEAT EXCHANGER FSN(E)/(FXN(E) � � NOTE: 1. Td. (*1): temperature at the top of the compressor. 2. TD (*2): Td entered the suitable temperature area by means of PID control of expansion valve for plate heat exchanger as shown in the graph.
Page 231 Control system 5.8.4 COMPRESSOR OPERATION CONTROL RAS-8FSN/FXN Constant speed compressor RAS-5FSN Target frequency (Hz) Target frequency (Hz) RAS-10FSN/FXN RAS-12FSN/FXN Constant speed Constant compressor speed compressor Target frequency (Hz) Target frequency (Hz) RAS-14FSN RAS-16FSN/FXN Constant Constant speed speed compressor compressor 95 128 160 108 154 186 Target frequency (Hz) Target frequency (Hz)
Page 232 Control system RAS-20FSN/FXN No. of Units running RAS-18FSN/FXN Constant Constant speed speed compressor compressor 117 172 204 108 154 186 232 264 Target frequency (Hz) RAS-24FSN RAS-22FSN/FXN No. of Units running No. of Units running Constant Constant speed speed compressor compressor 108 154 186 232 264...
Page 233 Control system RAS-26FSN/FXN No. of Units running Constant speed compressor 117 172 204 259 291 Target frequency (Hz) RAS-28FSN No. of Units running Constant speed compressor 108 154 186 232 264 Target frequency (Hz) RAS-30/32FSN/FXN No. of Units running Constant speed compressor 117 172 204...
Page 234 Control system CONTROL SYSTEM 5.8.5. CONTROL FOR AUTOMATIC COOLING/HEATING PROCESS FSN(E) � Page 5-48 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 235 Control system CONTROL SYSTEM 5.8.6. OUTDOOR FAN CONTROL DURING COOLING OPERATION FSVNE � Fan step at start *1 Fan step at start Outlet Air Temp (Tao) Air flow (%) Tao < 5 °C 5 °C � Tao < 11 °C (see table) 11 °C �...
Page 236 Control system CONTROL SYSTEM 5.8.8. OUTDOOR FAN CONTROL DURING HEATING OPERATION FSVNE � Table 1 Outlet Air Temp (Tao) Airflow Rate (%) Tao < 15 °C 15 °C � Tao < 18 °C 18 °C � Tao < 22 °C 22 °C �...
Page 237 Control system CONTROL SYSTEM 5.8.10. ACTIVATION FOR PROTECTION DEVICE FSVNE � Page 5-51 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 238 Control system CONTROL SYSTEM 5.8.11. STANDARD CONTROL FUNCTIONS FOR THE KPI SYSTEM Automatic ventilation mode � � Fan mode total heat exchanger ventilation mode � Other than fan mode (cooling/dry/heating) a. Total heat exchange ventilation mode �Normal ventilation mode If i) or ii) is met i) All the following three conditions should be met A.
Page 239 Control system CONTROL SYSTEM 5.8.12. STANDARD CONTROL FUNCTIONS FOR ECONOFRESH Standard process (economizer) � Page 5-53 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 240 Control system CONTROL SYSTEM Standard process (economizer) (cont.) � Page 5-54 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 241 Control system CONTROL SYSTEM All fresh control � Page 5-55 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 242 Control system CONTROL SYSTEM gas sensor control � gas sensor control should be connected to CN3# 1~2 of indoor unit PCB. We consider CN3# 1~2 ON when contact is closed, then damper is activated and the CO quantity is reduced. We consider CN3# 1~2 OFF when contact is open, then CO reduction is not necessary.
Page 243 Control system CONTROL SYSTEM 5.8.13. SOLENOID VALVE CONTROL FOR CH UNIT (CH-4.0N(E), CH-8.0N(E), CH-12.0N(E)) 5.8.13. SOLENOID VALVE CONTROL FOR CH UNIT (CH-4.0N(E); CH-8.0N(E); CH-12.0 N) Compressor O.U.: RUN Compressor of Solenoid connected O.U.: Stop Outdoor Unit Status of connected I.U. Valve of Status CH-Unit...
Page 244 Control system CONTROL SYSTEM 5.9. RESTRICTED CONTROL FOR OUTDOOR UNITS FSN(E)/FXN(E) � 3. Applicable case 1. Purpose (1) Decrease in the discharge gas superheat Minimize the frequency of the operation stoppage (2) Increase in the discharge gas temperature because of an alarm. (3) Pressure ratio decrease (4) Discharge pressure increase 2.
Page 245 Available optional functions Available optional functions CONTENTS 6.1. Indoor Units ______________________________________________________________ 2 6.1.1. Available ports ____________________________________________________________ 2 6.1.2. Conﬁguration _____________________________________________________________ 3 6.1.3. Description of optional input signals ___________________________________________ 6 6.1.4. Description of optional output signals __________________________________________ 8 6.2. RPK(0.8~4.0)FSNM unit ____________________________________________________ 9 6.2.1.
Page 246 Available optional functions 6.1. INDOOR UNITS The system has eight input and eight output optional  Output connections signals. Both signals are programmed in the PCB of the indoor unit: with the CN3 connector for the input signals and Indication Connections the CN7 and CN8 connectors for the output signals.
Page 247 Available optional functions 6.1.2. 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. ...
Page 248 Available optional functions  Optional output signals Indic. Output signal Application Remote Control Display Port (Output signal) Not Set Not Set CN7 or    Operation Signal This signal allows to control the status of CN7 or  the machine at all times;it is very useful for ...
Page 249 Available optional functions Programming with the PC-P1HE c. After selecting the indoor unit, leave the condition for 7 seconds or press the “CHECK” switch, the remote The optional signals are programmed using the remote control switch is changed to the optional setting mode. control switch.
Page 250 Available optional functions  Selection of other Indoor Unit  Note: When in optional settings mode, press the “TEMP ” – When you use a ﬁeld-supplied room thermostat, select switch or the “TEMP ” switch, the condition of the the speciﬁed thermostat as explained below: remote control switch is changed so that the Indoor Unit Contactor Load: DC 12V can be selected to set the optional function described...
Page 251 Available optional functions  Function 2 - Remote OFF of the unit () (pulse Time chart signal input) CN3 signal This is a remote OFF optional signal that uses the pulse signal. Connect the cabling and use the materials as shown in Control by means section 6.1.1.
Page 252 Available optional functions   Thermo-ON signal during the cooling process () Notes: You use this optional signal to pick up the Thermo-ON – The remote control thermistor cannot be used if a signal of the running compressor during the cooling remote temperature sensor is being used process.
Page 253 Available optional functions 6.2. RPK(0.8~4.0)FSNM UNIT The following table shows the optional input and output signals available for the RPK-(0.8~4.0FSNM) units. These Signals are set up using DIP switches Setting option Connector No. Wireless PC-P1HE optional Pin Nº DSW2 function Function 1 - remote ON/OFF of the unit Function2 - remote ON of the unit.
Page 254 Available optional functions 6.2.1. DESCRIPTION OF OPTIONAL INPUT  Function 2: Remote OFF of the unit () (pulse signal SIGNALS input) This is a remote OFF optional signal that uses the pulse  Function 1: Remote ON/OFF of the unit signal.
Page 255 Available optional functions   Setting of the cooling mode or the heating mode Control by means of the ﬁeld-supplied room thermostat By utilizing this function, the cooling or heating operation mode can be changed by giving a contact signal from the When operating with a ﬁeld supplied room thermostat outside to the unit.
Page 256 Available optional functions 6.2.2. DESCRIPTION OF OPTIONAL OUTPUT SIGNALS   Operation Signal Alarm Signal This optional signal is utilized to pick up the operation This optional signal is used to pick up the activation of signal. By means of this function, you can check the safety devices.
Page 257 Available optional functions 6.3. ECONOFRESH KIT The signal has the following control logic. The system has three optional input signals that are programmed in the PCB of the indoor unit by means of Connector Pin No. Sluice valve connector CN3 of the RPI unit. #1 #2 –...
Page 258 Available optional functions 6.4. FSN(E)/FXN(E) OUTDOOR UNITS  The system has 9 input and four output signals that are Output connections programmed in the PCB of the outdoor unit by means of Indication Connections connectors CN17 and CN18 for the input signals and CN16 for the output signals.
Page 259 Available optional functions 6.4.2. CONFIGURATION. Available optional signals FSN(E)/FXN(E) 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 Fixing the heating This signal allows to pre-ﬁx the operation mode, in this case the heating mode,...
Page 260 Available optional functions Programming The optional signals are programmed through the PCB of the outdoor unit. SEG2 SEG1 Setting of the optional signals Input setting 1 Factory setting   CN17, 1-2 The optional signals of the outdoor unit are set up from the PCB of the outdoor unit and push switches PSW1, PSW2 PSW1 and PSW3...
Page 261 Available optional functions 6.4.3. DESCRIPTION OF OPTIONAL INPUT  Demand () SIGNALS. This is an input function to control the maximum power that the compressor can consume. When this option  Fixing Operation Mode (Heating / Cooling) is turned on, the outdoor units are stopped completely, This input function is ﬁxed in terminals CN 17 or CN18 and the indoor units go into THERMO-OFF.
Page 262 Available optional functions 6.4.4. DESCRIPTION OF OPTIONAL OUTPUT 6.4.5. OPTIONAL FUNCTIONS FOR FSN(E)/ SIGNALS FXN(E) Programming  Operation signal () The optional signals are programmed through the PCB of This optional signal is utilized to pick up the operation the outdoor unit. signal.
Page 263 Available optional functions     SEG2 SEG1 SEG2 SEG1 Not Prepared Not Available Control of the Not Available     indoor unit fan during Thermo- OFF in heating mode PSW1 PSW1 SET* PSW2 PSW3 SET* PSW2 PSW3 Available ...
Page 264 Available optional functions   Control of the indoor unit fan during Thermo-OFF in Frequency range heating mode. Minimum Outdoor unit Frequency This optional function is used to set up the indoor unit fan capacity (HP) conditio- maxi- during Thermo-OFF in heating mode. mum.
Page 265 Available optional functions   Cancellation of outdoor temperature limit in heating Change of defrost operation conditions mode This function allows to change the operation conditions in This function allows to operate in heating mode without any defrosting mode. outdoor temperature limit. The change is shown in the following illustrations: Operation Normal Defrosting Condition...
Page 266 Available optional functions External signal  Cancellation of outdoor unit Hot-start limit External signal By means of this function, you do not need to wait for the compressor temperature to rise above 40 °C in order to start Trimming the outdoor unit. ...
Page 267 Available optional functions 6.5.2. CONFIGURATION. Example of wiring diagram of ﬁxing the operation mode. Available optional signals Outdoor Unit PCB: FSVNE units have the following signals that are described in the following table. These signals are set up through the PCB of the outdoor unit.
Page 268 Available optional functions 6.5.4. DESCRIPTION OF OPTIONAL OUTPUT Setting option Location SIGNALS. Setting according to piping length  Alarm signal () This optional signal is used to pick up the activation of safety devices. R407C Piping DSW2 This function must be set in terminal CN7 as follows: Simultaneous defrosting prevention (Turn OFF JP5) ...
Page 269 Available optional functions   Night mode, (Low noise) Cancellation of outdoor temperature limit in heating mode When you set the operation mode to night mode (low noise), which is used especially during the nighttime, the cooling This function allows to operate in heating mode without any capacity is decreased to 60%.
Page 270 Available optional functions   Change of defrost operation conditions Setting defrosting at low-speed This function allows to change the operation conditions in Withthis option, you can select the speed of the indoor unit defrosting mode. fan during the defrosting period. The change is shown in the following illustrations: Fan speed during defrosting Standard specification (factory setting)
Page 271 Available optional functions b. Press the Time ∇ switch or the Time ∆ switch. Then, the  Selection of indoor unit port indication at the segments for time indication of the a. In SERVICE selection mode, the indication of the timer setting changes as shown below.
Page 272 Available optional functions Setting items of the optional functions Item. Optional functions Setting Contents of parts Content Removal of Heating temperature Ca- Not Available This function is used to eliminate the  libration 4 °C shift. Available Circulator Function at Heating Ther- Not Available This function is to avoid the stratifica- ...
Page 273 Available optional functions Item. Optional functions Setting Contents of parts Content Power supply ON/OFF 1 Not Available This function retains the settings of  the unit if power supply is interrup- Available ted. The unit will start when power is restored.
Page 274 Available optional functions 6.6.2. OPTIONAL FUNCTIONS OF THE REMOTE (Indicated Setting Temperature = Suction Air Temperature –4 °C → Return to 0 °C) CONTROL SWITCH This is useful when the thermistor at the suction side 1. Removal of Heating Temperature Calibration () of an Indoor Unit is removed and installed into another This function is utilized when the temperature settings of place.
Page 275 Available optional functions Remote control switch thermistor (C8) 5. Fixing the operation mode () This function is utilized to control the unit by the built-in This function is utilized when changes in operation thermistor of the remote control switch (remote control modes are not required.
Page 276 Available optional functions Ventilation mode (KPI) ()  Note: This function is used to set the ventilation mode of the In case that the setting airﬂow mode by the remote total heat exchanger. control switch is “HIGH”, the airﬂow of the total heat The setting condition and the ventilatrion mode are as exchanger is “HIGH”...
Page 277 Available optional functions Mode Lock () Heating temperature range limit () This function is utilized to lock the operation mode. This function is utilized to set the the temperature Range in heating mode. This function allows reducing the The setting condition is showing below Heating range, to conﬁgurate trough the remote control switch.
Page 278 Available optional functions 6.7. OPTIONAL FUNCTIONS AVAILABLE THROUGH THE REMOTE CONTROL SWITCH AVAILABLE OPTIONAL FUNCTIONS (PC-P5H) 6.7. OPTIONAL FUNCTIONS AVAILABLE THROUGH THE REMOTE CONTROL SWITCH (PC-P5H) Normal mode (when unit is not operating) Press the � ( ) � ( ) and �...
Page 279 Available optional functions AVAILABLE OPTIONAL FUNCTIONS 6.8. OPTIONAL FUNCTIONS AVAILABLE THROUGH WIRELESS REMOTE CONTROL SWITCH (PC-LH3A + RECEIVER) You can adjust the following optional functions with the DIP PC-RLH9 � switches of the receiver. 6.8.1. OPTIONAL FUNCTIONS � Remove two screws Switch (COOL) The following optional functions can be set by the DIP and open the case...
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Page 281 Test run Test run CONTENTS TEST RUN _____________________________________________________________ 7-1 7.1. Checking Procedure before the Test Run _____________________________________ 7-2 7.2. Test Run Procedure by Means of the Remote Control Switch _____________________ 7-3 7.3. Test Run Procedure by Means of the Wireless Remote Control (PC-LH3A) ___________ 7-4 7.4.
Page 282 Test run TEST RUN When you have finished the installation, perform the test � run according to the following procedure. After performing WARNING: the test run, hand over the system to the customer. – Do not operate the system until all the check points Perform the test run of the indoor units one by one in order.
Page 283 Test run TEST RUN 7.2. TEST RUN PROCEDURE BY MEANS OF THE REMOTE CONTROL SWITCH Turn ON the power source of the indoor units and the outdoor � units. Set the TEST RUN mode by means of the remote control �...
Page 284 Test run TEST RUN 7.3. TEST RUN PROCEDURE BY MEANS OF THE WIRELESS REMOTE CONTROL (PC-LH3A) � ATTENTION: 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.
Page 285 Test run TEST RUN 7) Stop the test run (abnormal) for the PC-RLH 9/11. Example: If you cannot use the PC-LH3A because of battery shortage or any other reason, perform the emergency Alarm � � operation as follows. code: (1) COOL switch: Press the COOL switch in order to start the cooling process.
Page 286 Test run TEST RUN 7.4. TEST RUN PROCEDURE FROM THE OUTDOOR UNIT SIDE FSN(E)/FXN(E) � � WARNING: The test run procedure from the outdoor unit side is shown – Do not touch any other electrical components while below. You can set this DIP switch while the power source you are setting the switches on the PCB.
Page 287 Test run TEST RUN FSVNE � � WARNING: The procedure of test run from outdoor unit side is Do not touch any other electrical parts when operating indicated below. Setting of this DIP switch is available with switches on the PCB. the power source ON.
Page 288 Test run TEST RUN 7.5. CHECK LIST CHECK LIST ON TEST RUN � Client: Installer: Date: Outdoor unit model: Outdoor unit serial No.: Checker: Indoor unit model Indoor unit serial No. Piping length (m) Additional refrigerant charge (kg) 1. General Check item Result Was the DIP switch DSW6 for the piping length in the outdoor unit set?
Page 289 Test run TEST RUN 3. Check Item after the sampling data a. Cooling process (If the outdoor temperature is higher than 15°C) Check item Standard Causes Result Running HP of the Is H1 (compressor frequency) + (CC (number of Running horsepower of Low: excessive refrigerant;...
Page 290 Test run TEST RUN b. Heating process (if the outdoor temperature is higher than 0°C) Check item Standard Causes Result Is oE1,oE2 (outdoor unit expansion valves opening) oE1 = 30~80% Low: excessive abnormally low or high when TdSH is 15 refrigerant;...
Page 291 Test run TEST RUN 7.6. CHECKING THE REFRIGERANT QUANTITY Checking procedures: � 7.6.1. FSN(E)/FXN(E) Cooling process You can check the excess or the deficiency of the 1. Calculate iE (indoor unit expansion valve opening) refrigerant by means of the data that is provided by the with the conversion value (�) that is shown below.
Page 292 Test run TEST RUN Example: Cooling process � Indoor unit iE (%) (from the checking data) Converted value of iE (1.0 X 20) (0.7 X 30) (2 X 55-60) (0.7 X 40) Sum of converted value of iE 119 (= 20+21+50+28) Normal value 78 to 351 (13 x 6 –...
Page 293 Test run TEST RUN Expansion valve opening � RAS-5HP (heating process) (OE1) RAS-8HP (heating process) (OE1) RAS-5HP (heating process) (OE1) RAS-8HP (heating process) (OE1) Indoor temperature (DB) (°C) Indoor temperature (DB) (°C) RAS-10/12HP (heating process) (OE1) RAS-14/16HP (heating process) (OE1) RAS-10HP (heating process) (OE1) RAS-16HP (heating process) (OE1) Indoor temperature (DB) (°C)
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Page 295 Troubleshooting Troubleshooting CONTENTS TROUBLESHOOTING ____________________________________________________ 8-1 8.1. Initial Troubleshooting ____________________________________________________ 8-2 8.1.1. Checking by Means of the 7-Segment Display _________________________________ 8.1.2. Emergency Operation when the Inverter Compressor Is Damaged _________________ 8.1.3. Failure of the Power Supply to the Indoor Unit and the Remote Control Switch ________ 8.1.4.
Page 296 Troubleshooting TROUBLESHOOTING 8.1. INITIAL TROUBLESHOOTING 8.1.1. CHECKING BY MEANS OF THE 7-SEGMENT DISPLAY Simple checking procedure by means of the 7-segment display � �Turn on all the indoor units � All the indoor units which are connected to the outdoor unit. Turn on the outdoor unit Turn auto-addressing starts During the auto-addressing, you can check the following items by...
Page 297 Troubleshooting TROUBLESHOOTING 8.1.2. EMERGENCY OPERATION WHEN THE INVERTER COMPRESSOR IS DAMAGED Failure of the inverter compressor d. Emergency operation � a. Contents of the operation applicable to the models: a. Contents of the operation (applicable to the models: 1. Turn OFF all the main switches. RAS-8FSN(E)/FXN(E), 10FSN(E)/FXN(E), 16FSN/FXN, RAS-8~42FSN(E)/FXN(E) 20FSN/FXN, 24FSN/FXN, 30FSN/FXN)
Page 298 Troubleshooting TROUBLESHOOTING 8.1.3. 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 299 Troubleshooting TROUBLESHOOTING 8.1.4. 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 of the remote control cable...
Page 300 Troubleshooting TROUBLESHOOTING 8.1.5. ABNORMAL OPERATIONS OF THE DEVICES Action Phenomenon Cause Check item (Turn OFF the main switch) Disconnected Measure the coil resistance Failure of coil by means of the tester the indoor Replace the Indoor unit fan unit fan motor motor Measure the insulation...
Page 301 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF THE DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Check the setting condition of "remote control thermostat" by means of the optional setting Setting and control: "00": Control by means of the indoor thermistor The Comp.
Page 302 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Failure of the Failure of Thermistor Check the Thermistor by Replace or Correctly Discharge means of the connect the wiring when Air Temp. Disconnected self-check mode *2) it is abnormal...
Page 303 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF THE DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Indoor cool load is greater than Calculate the cool load Use a bigger unit the cooling capacity Gas leakage Correctly charge the or shortage of Measure superheat refrigerant after repairing...
Page 304 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF THE DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Clogging of the outdoor unit Remove the clogging heat exchanger? Obstacles at the inlet or the Insufficient outlet of the outdoor unit Remove the obstacles air flow to the heat exchanger...
Page 305 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF THE DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Indoor heat load is greater than Replace the unit with Calculate the heat load the heating capacity a bigger unit Gas leakage Correctly charge the or insufficient Measure superheat...
Page 306 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS 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 at the indoor the inlet or the outlet of the Remove the obstacles unit heat indoor unit...
Page 307 Troubleshooting TROUBLESHOOTING ABNORMAL OPERATIONS OF THE DEVICES (Cont.) Action Phenomenon Cause Check item (Turn OFF the main switch) Foreign particles inside of the Remove the foreign Visually inspect it fan casing particles Indoor unit fan runner is hitting Adjust the position of the fan Visually inspect it the casing runner...
Page 308 Troubleshooting TROUBLESHOOTING 8.2. TROUBLESHOOTING PROCEDURE 8.2.1. ALARM CODE TABLE If the RUN LED flickers for 2 seconds, there is a failure in If the RUN LED flickers 5 times (5 seconds) with the unit number the transmission between the Indoor Unit and the Remote and the alarm code displayed, make a note of the alarm code Control Switch.
Page 309 Troubleshooting TROUBLESHOOTING 8.2.2. TROUBLESHOOTING BY ALARM CODE Alarm code 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 310 Troubleshooting TROUBLESHOOTING Alarm code 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 311 Troubleshooting TROUBLESHOOTING 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 (Outdoor Heat Check for any obstacles at Exchanger during the Cooling...
Page 312 Troubleshooting TROUBLESHOOTING Action Phenomenon Cause Check item (Turn OFF the main switch) Check for clogging Remove the clogging Check the connect wiring Replace the connector and the connectors Faulty or malfunction of the Check the operation sound Replace the coil expansion valve from the coil Check the discharge gas...
Page 313 Troubleshooting TROUBLESHOOTING Alarm code 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 314 Troubleshooting TROUBLESHOOTING FSN(E)/FXN(E) Is DSW10-1P (terminal resistance) on PCB1 ON? Set it correctly FSVNE Is DSW5-1P (terminal resistance) on PCB1 ON? Is the voltage between Is LED1 (red) on the fasten terminal "R1" Check the fuses of the PCB1 ON? and "N"...
Page 315 Troubleshooting TROUBLESHOOTING Remove CN8 of PCB Is LED2 (yellow) on PCB ON? CH-unit Faulty PCB Is LED2 (yellow) Are other units on PCB flickering more in same condition? than once in 10 seconds? Faulty PCB1 Remove CN9 of PCB Is LED3 (yellow) ON Is LED3 on PCB1' ON? even if CN2 of PCB1’...
Page 316 Troubleshooting TROUBLESHOOTING Action Phenomenon Cause Check item (Turn OFF the main switch) Measure the voltage by Power failure or no power supply Supply the power means of the tester Check the insulation Remove the short circuit Short circuit between wires material for breaks and replace the fuse Blown out fuse...
Page 317 Troubleshooting Alarm code Abnormal transmission between Inverter and the Outdoor Unit PCB1,3  ( Only for RAS-36/42FSN)  “RUN” light ﬂickers and “ALARM” is indicated on the remote control switch.  The unit No., alarm code and the unit code is alternately indicated on the set temperature section, and the unit No.
Page 318    Troubleshooting        Alarm code Abnormal transmission between the inverter PCB1 and ISPM    (RAS3~32 FSVNE/FSN(E)/FXN(E)               ...
Page 319 Troubleshooting TROUBLESHOOTING Action Phenomenon Cause Check item (Turn OFF the main switch) Between control PCB, ISPM Disconnected Check the continuity of and FANM wires, insufficient Replacing wires, repairing, wires. Check for looseness contacting or tightening screws and of the connection screws. incorrect incorrect wiring Power source wiring for the...
Page 320 Troubleshooting TROUBLESHOOTING Alarm code 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 321 Troubleshooting TROUBLESHOOTING Alarm code Excessively low voltage or excessively high voltage for the inverter �� 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 TROUBLESHOOTING Alarm code Excessively low or excessively high voltage for inverter fan module �� 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 323 Troubleshooting TROUBLESHOOTING Alarm code Decrease of the discharge gas superheat (FSN(E)/FXN(E)) �� 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 324 Troubleshooting  Position of the Thermistor Model RAS-[HP]FSN(E) / FXN(E) Thermistor position (a) Thermistor ref. Display Inverter THM8  ﬁx compressor THM9  THM12  THM13  THM14  THM16  No. of compressors  Expansion valve connector number Outdoor unit model FSN(E) Connector No.
Page 325 Troubleshooting TROUBLESHOOTING Alarm code Decrease of the discharge gas superheat (FSVNE) �� 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 326 Troubleshooting TROUBLESHOOTING Action Phenomenon Cause Check item (Turn OFF the main switch) Ref. cycle is different from the Check the ref. cycle and the Repair the wiring electrical system electrical system Mesure the pressure. Measure the pressure. Correctly charge the Overcharged refrigerant (Refer to 7.5) refrigerant...
Page 327 Troubleshooting TROUBLESHOOTING Alarm code Excessively high discharge gas temperature at the top of the 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 328 Troubleshooting  Position of the Thermistor Model RAS-[HP]FSN(E) / FXN(E) Thermistor position (a) Thermistor ref. Display Inverter THM8  ﬁx compressor THM9  THM12  THM13  THM14  THM16  No. of compressors  Expansion valve connector number Outdoor unit model FSN(E) Connector No.
Page 329 Troubleshooting TROUBLESHOOTING Alarm code Activation of the protection device for the outdoor fan motor for FSN(E)/FXN(E) �� 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 TROUBLESHOOTING Alarm code 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 331 Troubleshooting TROUBLESHOOTING Alarm code 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 332 Troubleshooting TROUBLESHOOTING Alarm code 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 333 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of the thermistor for the indoor unit heat exchanger �� gas 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 334 Troubleshooting TROUBLESHOOTING Alarm code 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 335 Troubleshooting TROUBLESHOOTING Alarm code Activation of the protection device for the indoor fan motor �� (except RCI 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 336 Troubleshooting TROUBLESHOOTING Alarm code Activation of protection device for indoor fan motor (RCI-Model) �� 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 337 Troubleshooting TROUBLESHOOTING Alarm code Activation of protection device for indoor fan motor (RPK-Model) �� 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 TROUBLESHOOTING Alarm code Abnormal operation of the high-pressure sensor for 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 339 Troubleshooting TROUBLESHOOTING Alarm code 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 340 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of thermistor for discharge gas temperature on 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 341 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of the thermistor for the evaporating temperature during �� 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 342 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of the thermistor for suction gas temperature �� (Suction compressor thermistor FSVNE) 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 indicated on the display of the outdoor unit PCB.
Page 343 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of the low-pressure sensor for 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 344 Troubleshooting TROUBLESHOOTING Alarm code Incorrect wiring connection (FXN(E) series only) �� 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 TROUBLESHOOTING Alarm code Incorrect capacity setting or combined capacity 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 346 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation in the transmission of other indoor units �� 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 TROUBLESHOOTING Alarm code Incorrect indoor unit 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 348 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of picking up the circuit for the protection (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 349 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of the running current at the constant speed compressor �� 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 350 Troubleshooting TROUBLESHOOTING Action Phenomenon Cause Check item (Turn OFF the main switch) Excessively high voltage or Operate within low voltage of the power 380V±10%(50Hz) or source 415V±10%(50Hz) Excessively large running Imbalance among phases at Adjust the voltage between current of the compressor motor the power source each phase Excessively high discharge...
Page 351 Troubleshooting TROUBLESHOOTING Alarm code Activation for protecting the system from the low compression ratio �� 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 352 Troubleshooting TROUBLESHOOTING Alarm code Activation for protecting the system from excessively high suction pressure �� 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 353 Troubleshooting TROUBLESHOOTING / 57 Alarm code Activation for protecting the system from excessively high discharge pressure �� 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 TROUBLESHOOTING Alarm code Activation for protecting the system from excessively low suction pressure �� (protection from the 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 355 Troubleshooting TROUBLESHOOTING Alarm code 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 356 Troubleshooting TROUBLESHOOTING Alarm code Activation for protecting the inverter against the instantaneous overcurrent (1) �� 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 TROUBLESHOOTING Alarm code Activation for protecting the inverter against the instantaneous overcurrent (2) �� 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 TROUBLESHOOTING Alarm code Activation for protecting the inverter against the instantaneous overcurrent (2) �� 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 TROUBLESHOOTING Alarm code Alarm code Activation for protecting the ISPM  Activation for protecting the ISPM �� 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 TROUBLESHOOTING Alarm code IPM (RAS-36/42FSN) Activation for protecting the ISPM �� TROUBLESHOOTING � 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. Alarm code The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 361 Troubleshooting TROUBLESHOOTING Alarm code Increase in the inverter fan 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 362 TROUBLESHOOTING Troubleshooting TROUBLESHOOTING Alarm code Increase in the inverter fan temperature �� Alarm code TROUBLESHOOTING Increase in the inverter fan temperature �� (RAS-36/42FSN) � 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. Alarm code The unit number and the alarm code are displayed on the display of the outdoor unit PCB.
Page 363 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of fan motor protection �� 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 364 Troubleshooting Alarm code Incorrect wiring among indoor units   “RUN” light ﬂickers and “ALARM” is indicated on the remote control switch.  The unit No., alarm code and the unit code is alternately indicated on the set temperature section, and the unit No.
Page 365 Troubleshooting TROUBLESHOOTING Alarm code 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 366 Troubleshooting TROUBLESHOOTING Alarm code Abnormal operation of thermistor for 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 367 Troubleshooting TROUBLESHOOTING Alarm code 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.
Page 368 Troubleshooting TROUBLESHOOTING 8.2.3. TROUBLESHOOTING IN CHECK MODE Use the CHECK 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 369 Troubleshooting TROUBLESHOOTING Although the wireless controller is used for the wall type � NOTE: indoor unit with the built-in receiver part, you can check the 1. The unit does not operate by pressing the operation alarm code by connecting the PC-P1HE. switch.
Page 370 Troubleshooting TROUBLESHOOTING Heating Thermo-ON Alarm Thermo temp. of the �� Coding Thermo-ON Operation remote control switch � Part name relay Dark Relay for drain pump (MD) and/or Indication on micro-computer input /output dew heater (EHW) Y52H Y52H Relay for electric heater (CEH) Y211 Relay for 4-way valve Micro-computer...
Page 371 Troubleshooting TROUBLESHOOTING Compressor pressure/frequency indication Discharge pressure �� (high) (x 0.1 MPa) � Suction pressure (low) �� (x 0.01 MPa) � This is an indication for internal information for the remote �� Control information control switch. This does not have any specific meaning. �...
Page 372 Troubleshooting TROUBLESHOOTING 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 373 Troubleshooting TROUBLESHOOTING Compressor pressure/frequency indication Discharge pressure �� (high) (x 0.1 MPa) � Suction pressure (low) �� (x 0.01 MPa) � �� This is an indication for the internal information for the remote Control information control switch. This does not have any specific meaning.
Page 374 Troubleshooting TROUBLESHOOTING 8.2.4. TROUBLESHOOTING BY MEANS OF THE 7-SEGMENT DISPLAY FOR FSN(E)/FXN(E) Checking method by means of the 7-segment display By means of the 7-segment display and the check switch (PSW) on the PCB1 in the outdoor unit, you can check the total quantity of the combined indoor units, the 7-segment display operation conditions and each part of the refrigerant cycle.
Page 375 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 Outdoor expansion valve � � � � � MV2 opening � �� PSW2 PSW3 (For 18 to 42HP) (For 24 to 30HP) PSW3 PSW2 Outdoor expansion valve � � � �...
Page 376 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 �� = Open Circuited , �� = Short - circuited � � 21 Air temperature (TO) � � �� PSW2 PSW3 (°C) PSW3 PSW2 � � � 22 RESERVE PSW2 PSW3...
Page 377 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 � � (No, 0 Unit) No. 0 Unit) � � PSW2 PSW3 �� (°C) Indoor unit � heat exchanger gas pipe temp. PSW3 PSW2 (No. F Unit) �...
Page 378 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 High-pressure increase � � � protection restricted � �: Restricted control is not in operation PSW2 PSW3 control �: Restricted control is in operation PSW3 PSW2 Inverter final temperature �...
Page 379 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 Refer to page 17/14 for code indication Cause code of stoppage � � � � at inverter � �� PSW2 PSW3 PSW3 PSW2 Cause code of stoppage � � � �...
Page 380 Troubleshooting TROUBLESHOOTING 8.2.5. TROUBLESHOOTING BY MEANS OF THE 7-SEGMENT DISPLAY FOR FSVNE Checking method by 7-segment display By using the 7-segment and check switch (PSW) on the PCB1 in the outdoor unit, total quantity of combined indoor units, 7-segment operation conditions and each part of refrigerant cycle can be checked. Check �...
Page 381 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 � � Suction pressure (low) � � � �� PSW2 PSW3 (MPa) PSW3 PSW2 Discharge gas temp. on � = Open Circuited , �� = Short – circuited, �� = Open circuit failure �...
Page 382 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents PSW3 PSW2 (No, 0 Unit) � � � No. 0 Unit) � PSW2 PSW3 �� Indoor unit (°C) � heat exchanger gas pipe temp. PSW3 PSW2 (No. F Unit) �...
Page 383 Troubleshooting TROUBLESHOOTING from previous page � Checking item Checking contents Inverter module PSW3 PSW2 temperature overheating � � � � �: Restricted control is not in operation protection restricted PSW2 PSW3 �: Restricted control is in operation control PSW3 PSW2 Discharge gas temp.
Page 384 Troubleshooting 8.2.6 TROUBLESHOOTING BY MEANS OF THE FLASHING ALARM LEDS FOR RPK-FSNM The red LED located on the panel indicates the following alarms: 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...
Page 385 Troubleshooting TROUBLESHOOTING 8.2.8 8.2.7. PROTECTION CONTROL CODE ON THE 7-SEGMENT DISPLAY Code Protection control Code Protection control Discharge gas SUPERHEAT falling 1. When a protection control is activated, you can see the  Overcurrent retry of constant speed retry protection control indication on the 7-segment display. ��...
Page 386 Troubleshooting 8.2.9. ACTIVATING CONDITION OF THE PROTECTION CONTROL CODE FOR FSN(E)/FXN(E) To monitor the conditions such as the temperature change and others, the control of the frequency and other controls are performed by the protection control in order to prevent the abnormal operations. The activating conditions of the protection control are shown in the table below: Code Protection control...
Page 387 Troubleshooting TROUBLESHOOTING 8.2.10 8.2.9. ACTIVATING CONDITION OF THE PROTECTION CONTROL CODE FOR FSVNE To monitor the conditions such as the temperature change The activating conditions of the protection control are shown and others, the control of the frequency and other controls in the table below.
Page 388 Troubleshooting TROUBLESHOOTING 8.3. PROCEDURE FOR CHECKING EACH MAIN PART 8.3.1. SELF-CHECKING PROCEDURE OF PCB BY MEANS OF THE REMOTE CONTROL SWITCH Use the following troubleshooting procedure for testing the PCB in the indoor unit and the outdoor unit � RUN/STOP Stop operation Press TEMP...
Page 389 Troubleshooting TROUBLESHOOTING 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. Disconnect the connector (CN25) for RPK-0.8~2.0FSNM or (CN12) for RPK-2.5~4.0FSNM 2.
Page 390 Troubleshooting TROUBLESHOOTING 8.3.2. SELF-CHECKING PROCEDURE OF THE REMOTE CONTROL SWITCH Cases where the CHECK switch is used. 1. If the remote control switch displays a malfunction. Indicating 2. For the regular maintenance check. LCD indication period (sec.) Turn ON the power source Only for the For one �...
Page 391 Troubleshooting TROUBLESHOOTING � The LCD changes as shown below. The detected temperature of the remote control thermostat is displayed at the (A) part in the figure below. � If the indicators "��" or "��" are displayed at the "A" part, the remote control thermostat is abnormal.
Page 392 Troubleshooting TROUBLESHOOTING 8.3.3. SELF-CHECKING PROCEDURE OF THE INDOOR UNIT PCB (ONLY FOR RPK) Self-checking procedure by means of the relays � Procedure � on the indoor unit PCB � Turn OFF the main power switch. � To check the abnormal operation on the indoor unit PCB �...
Page 393 b. Connect the connect wires to an electrical brazer. The discharging starts and this results in a hot brazer. Pay Troubleshooting attention not to short-circuit between the terminal P and N. TROUBLESHOOTING RAS-2~5HVRNE 8.3.4. PROCEDURE FOR CHECKING OTHER MAIN PARTS �...
Page 394 ISPM and the - side of the tester to N terminal of ISPM. If the resistance is more than 10 kΩ, it isnormal. Troubleshooting m. By touching the - side of the tester to the RB terminal of ISPM and the + side of the tester to N terminal of ISPM. If the resistance is more than 100 kΩ, it isnormal.
Page 395 Troubleshooting TROUBLESHOOTING  Checking procedure for the ISPM � Checking procedure ISPM for RAS-4~12HRNE 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.
Page 396 Please refer to the Service Manual, P5414026 or P541071, 2006. 1.3.2 Self-Checking of Remote Control Switch Please refer to the Service Manual, P5414026 or P541071, 2006. 1.3.3 Self-Checking of Central Station (PSC-5S) Please refer to the Service Manual, P5414026 or P541071, 2006. 1.3.4 Self-Checking of 7-Day Timer (PSC-5T) Please refer to the Service Manual, P5414026 or P541071, 2006.
Page 397 TROUBLESHOOTING TROUBLESHOOTING Remove all the terminals of the transistor module before check. If items (a) to (e) are performing and Troubleshooting the results are satisfactory, the transistor module is normal. Measure it under 1k� range of a tester. Do Remove all the terminals of the transistor module before check. If items (a) to (e) are performing and not use a digital tester.
Page 398 TROUBLESHOOTING Troubleshooting If items (a) to (e) are performing and the results are satisfactory, the transistor module is normal. Measure it under 1k� range of a tester. Do not use a digital tester. If items (a) to (e) are performing and the results are satisfactory, the transistor module is normal. Measure it under 1kΩ...
Page 399 Troubleshooting TROUBLESHOOTING Checking procedure for the fan controller failure � 1) Turn OFF the main switches and make sure that LED201 (Red) on Fan Controller is OFF. Otherwise, an electrical shock may occur because the voltage may have changed more than DC50V in Fan Controller. 2) Remove all the wirings in Fan Controller and measure the resistance between the terminals by means of an analog tester, according to the table below.
Page 400 Troubleshooting  Checking procedure for the electrical coil parts Abbreviations used for colors: Black Brown Yellow Green Blue Grey Orange White Silver Violet Fan motor for the Indoor Units: Indoor units Model Electrical wiring diagram Wiring No. Resistance (Ω) RCI-1.0FSN1E 56 W DC Motor —...
Page 401 Troubleshooting Indoor units Model Electrical wiring diagram Wiring No. Resistance (Ω) RPC-4.0FSNE 180 W 32.10 BLK - RED RPC-5.0FSNE 24.50 RED - YEL RPC-6.0FSNE 24.50 YEL - GRY 44.70 RED - WHT at 25 ºC RPI-2.0FSN1E 75.60 BLK - RED RPI-2.5FSN1E 12.80 RED -...
Page 402 Troubleshooting Indoor units Model Electrical wiring diagram Wiring No. Resistance (Ω) RPK-0.8FSNM 20 W DC Motor — — RPK-1.0FSNM RPK-1.0FSN1M RPK-1.5FSNM RPK-1.5FSN1M RPK-2.0FSNM RPK-2.5FSNM 40 W RPK-3.0FSNM RPK-3.5FSNM 41 W RPK-4.0FSNM RPF(I)-1.0FSNE 28 W 231.70 BLK - RED RPF(I)-1.5FSNE 198.70 RED -...
Page 403 Troubleshooting Outdoor units Model Electrical wiring diagram Wiring No. Resistance (Ω) RAS-36/42FSN UGBTEF 3.25±10%  –  (Center) -13LHKS02 3.25±10%  –  810W 3.25±10%  –  RAS-36/42 VC390HSA 6.93±10%  –  (Left and right side) 275W 6.11±10% ...
Page 404 Troubleshooting TROUBLESHOOTING / 101 Checking procedure for the compressor CHECK LIST ON THE COMPRESSOR Client: Model: Date: Serial No: Production date: Checker: Check item Check method Result Remarks Are THM8, THM9, THM12 and � Are the wires of each thermistor correctly THM13 correctly connected? connected in a visual inspection? THM8, THM9, THM12, THM13:...
Page 405 Troubleshooting TROUBLESHOOTING /102 Additional information for "CHECK LIST ON THE COMPRESSOR" Check item Additional information (mechanism of the compressor failure) 1 & 2 The discharge gas temperature (Td1) controls the liquid refrigerant return volume to the compressor when only the compressor No.1 is operating. If THM8 and THM9 are connected in the reverse order, the liquid refrigerant return volume will decrease even if the actual discharge gas temperature is high, because PCB1 is checking the wrong compressor temperature.
Page 406 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 407 Spare parts Spare parts Contents 9.1 - Indoor Units - System Free Series ___________________________________________ 114 9.1.1. RCI-1.0~6.0FSN1E ______________________________________________________ 114 9.1.2. RCIM-1.0~2.0FSN _______________________________________________________ 115 9.1.3. RCD-1.0~5.0FSN _______________________________________________________ 116 9.1.4. RCD-4.0~5.0FSN _______________________________________________________ 117 9.1.5. RPC-2.0~6.0FSNE ______________________________________________________ 118 9.1.6. RPI-0.8~1.5FSNE _______________________________________________________ 119 9.1.7. RPI-2.0~6.0FSN1E ______________________________________________________ 120 9.1.8.
Page 408 Spare parts 9.1 - Indoor Units - System Free Series 9.1.1. RCI-1.0~6.0FSN1E Electrical Parts Parts List Part Name Remarks Part Name Remarks U65A Spacer U00A Terminal Board U65B CP Cover U00B Terminal Board U71A Fan Motor U00C P-Spring U71B Drain Pump Condenser Assy U71C AS Motor Assy...
Page 409 Spare parts 9.1.2. RCIM-1.0~2.0FSN Electrical Parts Parts List Part Name Remarks Part Name Remarks U04A Fuse 0.5A For Control Circuit U41A/B Heat Exchanger Assembly U04B Fuse 5A For Power Source Spacer For PCB U15A Thermistor THM1 Air Inlet U71A Fan Motor U15B Thermistor THM2 Air Outlet...
Page 410 Spare parts 9.1.3. RCD-1.0~5.0FSN Electrical Parts Parts List 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 Drian discharge mechanism U15B Thermistor Thm2 air outlet U71C Motor Swing Motor Assy for P-G23DWA1...
Page 411 Spare parts 9.1.4. RCD-4.0~5.0FSN Electrical Parts Parts List 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 Thm1 air inlet...
Page 412 Spare parts 9.1.5. RPC-2.0~6.0FSNE Electrical Parts Parts List Part Name Remarks Part Name Remarks Terminal Board Coupling Capacitor 3µF/ 4µF/ 5µF/ 6µF/ U65A Spacer U15A Thermistor U65B Push Spacer U15B Thermistor Gas Pipe U65C Grille Knob U15C Thermistor Air Inlet U65D Grille Support U15D...
Page 413 Spare parts 9.1.6. RPI-0.8~1.5FSNE Electrical Parts Parts List Part Name Remarks Part Name Remarks U00A Terminal board Heat exchanger Assembly U00B Fan assy Assembly U65A Spacer For ﬁxing the printed circuit board U13A Expansion valve cord U65B Push spacer For ﬁxing the printed circuit board U13B Drain pump wire U71A Fan motor Capacitor...
Page 414 Spare parts 9.1.7. RPI-2.0~6.0FSN1E Parts List Part Name Remarks Part Name Remarks Terminal board Heat exchanger Assembly Capacitor 2.5µf, 8.0µf, 5.0µf, 3.15µf, 6.3µf U65A Spacer For ﬁxing PCB U15A Thermistor For Liquid Pipe U65B Push spacer For ﬁxing PCB U15B Thermistor For Gas Pipe U71A Drain Pump U15C Thermistor...
Page 415 Spare parts 9.1.8. RPI-8.0~10.0FSNE Electrical Parts Parts List Part Name Remarks Part Name Remarks Terminal Board U37B Fan Casing Assy R Right Side Runner & Casing (only) Fuse Heat Exchanger Assembly Exp. Valve Cord U65A Spacer For ﬁxing the PCB Capacitor 18µF / 25µF U71A Fan Motor Assy.
Page 416 Spare parts 9.1.9. RPK-1.0/1.5FSN1M Electrical Parts Parts List Part Name Remarks Part Name Remarks Fuse 5A (For Control Circuit) Heat Exchanger Assembly U15A Thermistor THM1 Air Inlet U71A Motor Expansion Valve U15B Thermistor THM2 Air Outlet U71B Motor Fan Motor 20W U15C Thermistor THM3 Freeze Protection U71C As Motor...
Page 417 Spare parts 9.1.10. RPK-0.8~2.0FSNM Electrical Parts Parts List Part Name Remarks Part Name Remarks Fuse 5A (For Control Circuit) Heat Exchanger Assembly U15A Thermistor Air Inlet U71A Fan Motor DC30V, 20W U15B Thermistor Air Outlet U71B As Motor For Auto Swing Louver U15C Thermistor Freeze Protection Transformer...
Page 418 Spare parts 9.1.11. RPK-2.5~4.0FSNM Electrical Parts Details (U85A) Parts List Part Name Remarks Part Name Remarks U04A Fuse 5A (For Control Circuit) Fan Runner U04B Fuse 6A (For Fan Motor) Heat Exchanger Assembly U04C Fuse 0.5A (For Control Circuit) U71A Fan Motor 40/41W U15A Thermistor Air Inlet...
Page 419 Spare parts 9.1.12. RPF-1.0~2.5FSNE Electrical Parts Parts List Part Name Remarks Part Name Remarks Terminal board Fan Casing Exp. Valve Cord Heat Exchanger Assembly Exp. Valve Cord U65A Spacer For ﬁxing PCB Capacitor 2µF / 4µF U65B Push Spacer For ﬁxing PCB U15A Thermistor Inlet U65C Grille Knob...
Page 420 Spare parts 9.1.13. RPFI-1.0~2.5FSNE (*) Electrical Parts Parts List- Part Name Remarks Part Name Remarks Terminal board Runner Exp. Valve Cord Fan Casing Exp. Valve Cord Heat Exchanger Assembly Capacitor 2µF / 4µF U65A Spacer For ﬁxing PCB U15A Thermistor Inlet U65B Push Spacer For ﬁxing PCB...
Page 421 Spare parts 9.2. Outdoor Units - Set Free FSN(E) Series 9.2.1. RAS-5FSN Cycle Parts  Drawing Number: SPN200408 (RAS-5FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 127 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 422 Spare parts Structural Parts Drawing Number: SPN200408 (RAS-5FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 128 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 423 Spare parts Electrical Parts Side A Side B Electrical Box Side B Side A Parts List Part Name Remarks Part Name Remarks U01A Pressure SW U62B Noise suppressor U01B Pressure SW U65A Spacer U01C Pressure SW High pressure U65B Spacer U04A Fuse U65C Spacer U04B Fuse...
Page 424 Spare parts 9.2.2. RAS-8~12FSNE Cycle Parts  RAS-8FSNE (Only) RAS-8FSNE (Only) RAS-8~12FSNE (Only) Drawing Number: EPN0521C (RAS-8~12FSNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 130 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 425 Spare parts Structural Parts RAS-8FSNE (Only) RAS-8FSNE (Only) Drawing Number: EPN0521C (RAS-8~12FSNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 131 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 426 Spare parts Electrical Parts Side A Side B Side A Side B Electrical Box Drawing Number: EPN0521C (RAS-8~12FSNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 132 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 427 Spare parts Parts List RAS-8~12FSNE Part Name Remarks Part Name Remarks U01A Pressure switch High pressure Oil separator assy U01B Pressure sensor L tank U01C Pressure sensor U62A Noise ﬁlter U04A Fuse U62B Noise ﬁlter U04B Fuse U65A Spacer U14A Capacitor 2700µf U65B Push spacer U14B Capacitor...
Page 428 Spare parts 9.2.3. RAS-14/16FSN Cycle Parts  Drawing Number: SPN200408 (RAS-14/16FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 134 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 429 Spare parts Structural Parts Drawing Number: SPN200408 (RAS-14/16FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 135 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 430 Spare parts Electrical Parts Parts List RAS-14/16FSN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure U62A Noise supprssor U01B Pressure sw U62B Noise supprssor U01C Pressure sw U65A Spacer U04A Fuse 20 A U65B Spacer U04B Fuse 12 A U65C Spacer U14A Capacitor...
Page 431 Spare parts 9.2.4. RAS-18/22FSN Cycle Parts  Drawing Number: SPN200408 (RAS-18/22FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 137 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 432 Spare parts Structural Parts Drawing Number: SPN200408 (RAS-18/22FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 138 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 433 Spare parts Electrical Parts Side A Side B Side A Side B Electrical Box Drawing Number: SPN200408 (RAS-18/22FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 139 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 434 Spare parts Parts List RAS-18/22FSN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Receiver Assy U01B Pressure sw U62A Noise supprssor U01C Pressure sw U62B Noise supprssor U04A Fuse U65A Spacer U04B Fuse U65B Spacer U14A Capacitor 2700µf U65C Spacer U14B Capacitor...
Page 435 Spare parts 9.2.5. RAS-24/26FSN Cycle Parts  Drawing Number: SPN200408 (RAS-24/26FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 141 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 436 Spare parts Structural Parts Drawing Number: SPN200408 (RAS-24/26FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 142 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 437 Spare parts Electrical Parts Left Electrical Box Right Electrical Box Right Electrical Box Drawing Number: SPN200408 (RAS-24/26FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 143 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 438 Spare parts Parts List RAS-24/26FSN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Receiver Assy U01B Pressure sw U62A Noise supprssor U01C Pressure sw U62B Noise supprssor U04A Fuse U65A Spacer U04B Fuse U65B Spacer U04C Fuse U65C Spacer U14A Capacitor 2700µf...
Page 439 Spare parts 9.2.6. RAS-30/32FSN Cycle Parts  Drawing Number: SPN200408 (RAS-30/32FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 145 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 440 Spare parts Structural Parts Drawing Number: SPN200408 (RAS-30/32FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 146 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 441 Spare parts Electrical Parts Left Electrical Box Right Electrical Box Right Electrical Box Left Electrical Box Drawing Number: SPN200408 (RAS-30/32FSN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 147 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 442 Spare parts Parts List RAS-30/32FSN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Receiver Assy U01B Pressure sw U62A Noise supprssor U01C Pressure sw U62B Noise supprssor U04A Fuse U65A Spacer U04B Fuse U65B Spacer U04C Fuse U65C Spacer U14A Capacitor 2700µf...
Page 443 Spare parts REFRIGERANT CYCLE MODEL: RAS-40FSN 40,42FSN Cycle (380V) RAS-42FSN 9.2.7. RAS-36/42FSN Cycle Parts  U40A U40B U21A U21B U40C U21A U21B U30F U77A U77B U15D U30G U77A U77A U30C U77C U77B U30B U21A U77B U15C U77B U21C U30C U42B U30C U30B U30C...
Page 444 RAS-40FSN RAS-42FSN CABINET AND FAN Spare parts 34-42FSN1 Cabinet (380V) MODEL: RAS-34FSN RAS-36FSN U34A RAS-38FSN RAS-40FSN RAS-42FSN Structural Parts U34A U34A U98G U34A U98F U34C U34A � U98F � � � U34C U34A � � U34B U71A � � � U34B U71A �...
Page 445 ELECTRICAL EQUIPMENT MODEL: RAS-34FSN Spare parts ELECTRICAL EQUIPMENT RAS-36FSN MODEL: RAS-34FSN RAS-38FSN RAS-36FSN RAS-40FSN RAS-38FSN 34-42FSN Electrical Equipment (380V) RAS-42FSN Electrical Parts RAS-40FSN 34-42FSN Electrical Equipment (380V) RAS-42FSN U15F U15F U85A U85A U65H U65H U82A U82A U74C U65C U74C U74A U65C U65E U65D...
Page 446 Spare parts Parts List RAS-36/42FSN Part Name Remarks Part Name Remarks U01A Pressure Sw Propeller Fan U01B Pressure Sw Oil Separator Assembly U01C Pressure Sw Receiver Assembly U04A Fuse U62A Noise Suppressor U04B Fuse U62B Noise Suppressor U04C Fuse U62C Noise Suppressor U14A Capacitor...
Page 447 Spare parts 9.3. Outdoor Units - Set Free FXN(E) Series 9.3.1. RAS-8FXNE Cycle Parts  Drawing Number: SPN200504 (RAS-8FXNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 153 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 448 Spare parts Structural Parts Drawing Number: SPN200504 (RAS-8FXNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 154 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 449 Spare parts Electrical Parts Side A Side B Side A Side B Drawing Number: SPN200504 (RAS-8FXNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 155 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 450 Spare parts Parts List RAS-8FXNE Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Propeller fan U01B Pressure sw Oil separator Assy U01C Pressure sw Receiver Assy U04A Fuse 20 A U62A Noise suppressor U04B Fuse 12 A U62B Noise suppressor U14A Capacitor 2700µf...
Page 451 Spare parts 9.3.2. RAS-10/12FXNE Cycle Parts  Drawing Number: SPN200504 (RAS-10/12FXNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 157 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 452 Spare parts Structural Parts Drawing Number: SPN200504 (RAS-10/12FXNE)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 158 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 453 Spare parts Electrical Parts Side A Side B Side A Side B Drawing Number: SPN200504 (RAS-10/12FXNE  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 159 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 454 Spare parts Parts List RAS-10/12FXNE Part Name Remarks Part Name Remarks U01A Pressure sw High pressure U42A Check valve U01B Pressure sw U42B Check valve U01C Pressure sw Propeller fan U04A Fuse 20 A Oil separator Assy U04B Fuse 12 A Receiver Assy U14A Capacitor...
Page 455 Spare parts 9.3.3. RAS-16FXN Cycle Parts  Drawing Number: SPN200504 (RAS-16FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 161 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 456 Spare parts Structural Parts Drawing Number: PN200504 (RAS-16FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 162 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 457 Spare parts Electrical Parts Side A Side B Side A Side B Drawing Number: PN200504 (RAS-16FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 163 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 458 Spare parts Parts List RAS-16FXN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure U42D Check valve U01B Pressure sw Propeller fan U01C Pressure sw Oil separator U04A Fuse 20 A Receiver Assy U04B Fuse 12 A U62A Noise suppressor U14A Capacitor 2700µF U62B Noise suppressor...
Page 459 Spare parts 9.3.4. RAS-18~22FXN Cycle Parts  Drawing Number: SPN200504 (RAS-18~22FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 165 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 460 Spare parts Structural Parts Drawing Number: SPN200504 (RAS-18~22FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 166 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 461 Spare parts Electrical Parts Side A Side B Side A Side B Drawing Number: SPN200504 (RAS-18~22FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 167 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 462 Spare parts Parts List RAS-18~22FXN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure U42D Check valve U01B Pressure sw Propeller fan U01C Pressure sw Oil separator U04A Fuse 20 A Receiver Assy U04B Fuse 12 A U62A Noise suppressor U14A Capacitor 2700µF U62B Noise suppressor...
Page 463 Spare parts 9.3.5. RAS-24~26FXN Cycle Parts  Drawing Number: SPN200504 (RAS-24/26FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 169 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 464 Spare parts Structural Parts Drawing Number: SPN200504 (RAS-24/26FXN  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 170 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 465 Spare parts Electrical Parts Left Electrical Box Right Electrical Box Right Electrical Box Left Electrical Box Drawing Number: SPN200504 (RAS-24/26FXN  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 171 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 466 Spare parts Parts List RAS-24/26FXN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Propeller fan U01B Pressure sw Oil separator U01C Pressure sw Receiver Assy U04A Fuse 20 A U62A Noise suppressor U04B Fuse 12 A U62B Noise suppressor U14A Capacitor 2700µF U65A Spacer...
Page 467 Spare parts 9.3.6. RAS-30/32FXN Cycle Parts  Drawing Number: SPN200504 (RAS-30/32FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 173 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 468 Spare parts Structural Parts Drawing Number: SPN200504 (RAS-30/32FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 174 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 469 Spare parts Electrical Parts Left Electrical Box Right Electrical Box Right Electrical Box Left Electrical Box Drawing Number: SPN200504 (RAS-30/32FXN)  WARNING This Spare part list can be updated without previous notiﬁcation. Check unit manufacturing serial number and consult with your Distributor for any update. Page 175 SMEN0032 rev.2 - 03/2007 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
Page 470 Spare parts Parts List RAS-30/32FXN Part Name Remarks Part Name Remarks U01A Pressure sw High pressure Propeller fan U01B Pressure sw Oil separator U01C Pressure sw Receiver Assy U04A Fuse 20 A U62A Noise suppressor U04B Fuse 12 A U62B Noise suppressor U14A Capacitor 2700µF U65A Spacer...
Page 471 Servicing Servicing CONTENTS SERVICING __________________________________________________________ 10-1 10.1. Outdoor Unit RAS-FSVNE ________________________________________________ 10-3 10.2. Outdoor Unit RAS-FSN(E) ______________________________________________ 10-18 10.3. Outdoor Unit RAS-FXN(E) ______________________________________________ 10-18 10.4. RCI ________________________________________________________________ 10-52 10.4.1. Removing the long life ﬁlter ______________________________________________ 10-52 10.4.2. Removing the air intake grille ____________________________________________ 10-52 10.4.3.
Page 472 Servicing 10.9. RPK-1.5/2 ___________________________________________________________ 10-83 10.9.1. Removing the Air ﬁlter __________________________________________________ 10-83 10.9.2. Removing the front panel _______________________________________________ 10-83 10.9.3. Removing the motor for the automatic louver ________________________________ 10-84 10.9.4. Removing the thermistor for liquid pipe, gas pipe, discharged air and suction air ____ 10-84 10.9.5.
Page 473 Servicing SERVICING 10.1. OUTDOOR UNIT RAS-FSVNE 9.1. OUTDOOR UNIT � �WARNING: TURN OFF all the main switches 9.1.1. FSVNE REMOVING SERVICE COVER � 1. Remove the main parts according to the following procedures. To reassemble perform the procedures in reverse. 2.
Page 474 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING OUTDOOR FAN � Upper Cover 1. Remove the service cover according to the item 9.1.1 “Removing Service Cover”. 2. Remove the air outlet grille according to the item 9.1.2 “Removing Air Outlet Grille”.
Page 475 Servicing SERVICING � �WARNING: TURN OFF all the main switches � For RAS-4~5FSVNE: � RAS-4~5FSVNE 1. Remove the service cover according to the item 9.1.1 “Removing Service Cover”. If the outdoor unit is installed Upper Cover close to a wall, disconnect the refrigerant pipe and move the outdoor unit away from the wall.
Page 476 Servicing SERVICING � �WARNING: TURN OFF all the main switches 7. Remove the oil heater by releasing the spring. Remove the spring by expanding as shown in the figure beside. Spring Oil Heater 8. Remove the discharge pipe thermistor. � RAS-4~5FSVNE �...
Page 477 Servicing SERVICING � �WARNING: TURN OFF all the main switches � RAS-4/5FSVNE Foot Position 12. Remove the two nuts that fix the compressor and remove the compressor. There is no nut at the rear side. When you are removing the compressor, pay special 0 = Exits attention not to touch or deform the surrounding pipes.
Page 478 Servicing SERVICING � �WARNING: TURN OFF all the main switches Upper Cover REMOVING HIGH PRESSURE SWITCH � 1. Remove the service cover according to the item 9.1.1 Screw “Removing Service Cover”. (M5, Qty.9) 2. Remove the nine (9) M5 screws fixing the rear cover and the five (5) M5 screws fixing the pipe rear cover.
Page 479 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING COIL FOR REVERSING VALVE � � RAS-3FSVNE � DANGER: Do not touch the electrical parts when LED201 (Red) on the ISPM is lit to prevent from an electrical shock. Reversing Valve 1.
Page 480 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING COIL FOR EXPANSION VALVE � � RAS-3FSVNE � DANGER: Pull out the Do not touch the electrical parts when LED201 (Red) on expansion valve coil the ISPM is lit to prevent from an electrical shock. upwards Expansion 1.
Page 481 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING PCB1 � � DANGER: Do not touch the electrical components. When handling the PCB1, take care of not to use excessive force as this will cause damage. Holder Holder 1.
Page 482 Servicing SERVICING � �WARNING: TURN OFF all the main switches � RAS-4~5FSVNE 4. Disconnect the CN5A, 5B (only 4/5FSVNE) connector on the PCB1 of the electrical box. 5. Remove the fixing screw for the solenoid valve coil and pull out upwards. Reversing valve Screw Solenoid...
Page 483 Servicing SERVICING � �WARNING: TURN OFF all the main switches � RAS-4~5FSVNE 8. Remove the high pressure sensor. 9. Disconnect the connector for high pressure sensor. Connection point (the outdoor heat exchanger) 10. Remove the valve stay. 11. Remove 4-way valve assy. 12.
Page 484 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING EXPANSION VALVE COIL � � RAS-3FSVNE � DANGER: Do not touch the electrical parts when LED201 (Red) on the ISPM is lit to prevent from and electrical shock. Expansion valve coil (EV0) 1.
Page 485 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING PRESSURE SENSOR � � RAS-3FSVNE � DANGER: Do not touch the electrical parts when LED201 (Red) on High pressure sensor the ISPM is lit to prevent from and electrical coil parts. 1.
Page 486 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING ISPM � � DANGER: Do not touch the electrical parts when LED201 (Red) on the ISPM is lit to prevent from an electrical shock. 1. Remove the service cover according to the item 9.1.1 “Removing Service Cover”.
Page 487 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING ELECTRICAL COMPONENTS � � RAS-3FSVNE � DANGER: Do not touch the electrical parts when LED201 (Red) on the ISPM is lit to prevent from an electrical shock. ISPM 1. Remove the service cover according to the item 9.1.1 LED201 “Removing Service Cover”.
Page 488 Servicing SERVICING � �WARNING: TURN OFF all the main switches 10.2 & 10.3 OUTDOOR UNIT RAS-FSN(E)/FXN(E) 9.1.2. FSNE/FXNE REMOVING THE AIR INLET GRILLE � 1. Remove the two/the four screws at the bottom of the air inlet grille (rear side of the unit). Upper cover 2.
Page 489 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE FRONT SERVICE PANEL � 1. Remove the screws. Slightly lift the panels upwards and remove the panels. RAS-5FSN ____________ 6 screws RAS-5FSN....6 screws. RAS-8~12FSNE/FXNE __8 screws RAS-8, 10FSN(E)..8 screws. Side Cover RAS-14/16FSN ________ 10 screws RAS 8~20FXN(E) ..
Page 490 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE FAN GUARD NETS � Screw 1. Remove the four/the eight screws and remove the fan guard net. FAN Guard Net RAS-5, 8, 10, 16 FSN/FXN….4 screws. Upper cover RAS-20, 24, 30 FSN/FXN;...
Page 491 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE OUTDOOR FAN � 1. Remove the fan guard nets according to the section 9.1.3, "Removing the Fan Guard Nets". Flat Washer � NOTE: Propeller Fan Do not apply load on the upper panel (plastic part). Otherwise, you may deform or break the upper panel.
Page 492 Servicing SERVICING � �WARNING: TURN OFF all the main switches POSITION FOR ATTACHING THE AC MOTOR � When you are attaching the AC motor (*), attach the motor by positioning the motor toward front side. Otherwise, the gap between the propeller fan and the bell mouth will not be enough.
Page 493 Servicing � SERVICING �WARNING: TURN OFF all the main switches 4. Release the lace for the waterproof panel. Open the Direction to remove the cover � waterproof panel from the front side. �WARNING: TURN OFF all the main switches � NOTE: Water-Proof Cover 4.
Page 494 Servicing SERVICING � �WARNING: TURN OFF all the main switches 7. Disconnect the discharge and suction pipes of the compressor. Make sure that there is no positive pressure inside the pipes. Cut the pipe at the compressor side of the brazing part.
Page 495 Servicing SERVICING � �WARNING: TURN OFF all the main switches 9. Remove the three nuts that fix the compressor and Plane View remove the compressor. There is no nut at the rear side. Foot of When you are removing the compressor, pay special Without nut Compressor attention not to touch or deform the surrounding pipes.
Page 496 Servicing SERVICING � �WARNING: TURN OFF all the main switches 11. Attach the new compressor. Perform the brazing according to the following order: 1) Oil Evacuating Pipe (in the case of the constant speed compressor). 2) Discharge Pipe. 3) Suction Pipe. Pay special attention to the oil pipe: do not to deform the oil pipe when you are attaching the nuts on the front side.
Page 497 Servicing Wind the oil heater around the compressor c. Fix the cover ﬁrmly with two tacks to avoid water Attach water-proof cover. entering from the clearance between water-proof Reconnect all wires at the original positions. cover and the cap. a. The oil heater lead line is ﬁxed at the tack of water- proof-cover inner side prevented from contacting with power line and piping.
Page 498 Servicing Final check for wiring conditions referring to the drawing below.  NOTE: Check to ensure that all wires do not contact with compressor, piping or steel plate edges. If it contacts, it will cause of wire breaking and ignition. Remove Td thermistor and PSH from dent part of water-proof cover right side.Slacken thermistor wiring and PSH lead wire about 10 mm to prevent compressor and piping from contacting.
Page 499 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE HIGH-PRESSURE SWITCH, � RAS - 5 FSN THE HIGH-PRESSURE SENSOR AND High Pressure THE LOW-PRESSURE SENSOR Check Joint for Switch High Pressure Sensor 1. Remove the front service access panel according to the High Pressure Check Joint section 9.1.2, "Removing the Front Service Panel".
Page 500 Servicing SERVICING � �WARNING: TURN OFF all the main switches RAS-8~12FXN(E) RAS-16~22FXN RAS – 8, 10 FXN(E) RAS – 16 - 20 FXN(E) High Pressure Switch Check Joint for High Pressure Sensor Check Joint for Low High Pressure High Pressure Pressure Sensor Switch High Pressure...
Page 501 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE HIGH-PRESSURE SWITCH � (DETAILED PROCEDURE) High Pressure Switch 1. Collect the refrigerant. Faston Terminal Brazing Pant 2. Disconnect the fasten terminals. 3. Remove the high-pressure switch from the brazing part of the discharge pipe by means of a burner.
Page 502 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE HIGH-PRESSURE SENSOR Tension of wire � after attaching shall be AND THE LOW-PRESSURE SENSOR within 3 winds (DETAILED PROCEDURE) Tightening position ( spanner size: 14 1. Remove the connector for the pressure sensor wiring at the various PCB.
Page 503 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE 4-WAY VALVE COIL � 1. Remove the front service access panel according to the section 9.1.2, "Removing the Front Service Panel". 2. Remove the 4-way valve coil by means of a Phillips screwdriver first.
Page 504 � Servicing �WARNING: TURN OFF all the main switches SERVICING REMOVING THE SOLENOID VALVE COIL � 1. Remove the front service access panel according to the Screw Solenoid � section 9.1.2, "Removing the Front Service Panel". �WARNING: TURN OFF all the main switches 2.
Page 505 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE EXPANSION VALVE COIL � Coil Coil 1. Before this work, remove the service access panel according to the section 9.1.2, "Removing the Front Service Turn the coil and Panel".
Page 506 Servicing SERVICING SERVICING � � �WARNING: TURN OFF all the main switches �WARNING: TURN OFF all the main switches REMOVING THE THERMISTOR FOR THE LIQUID Thermistor � REMOVING THE THERMISTOR FOR THE LIQUID Thermistor � PIPE Thermistor PIPE Holder Thermistor �...
Page 507 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE OUTDOOR THERMISTOR � 1. Remove the front service access panel according to the 10 FSN section 9.1.2, "Removing the Front Service Panel" 2. Remove the two screws for the electrical box panel and Screw (Upper) <M4 x 20mm>...
Page 508 Servicing SERVICING � �WARNING: TURN OFF all the main switches � NOTES: Check to ensure that the bottom edge of Refer to the diagram and pay special attention to the bellmonth is on the front cover upper 2 Upper Cover mounting bell mouth and the front upper panel 2 as shown in the figure correctly.
Page 509 Servicing SERVICING SERVICING SERVICING SERVICING OFF all the main switches � N OFF all the main switches �WARNING: TURN OFF all the main switches �WARNING: TURN OFF all the main switches WAY VALVE -WAY VALVE REMOVING THE 4-WAY VALVE Terminal Board Power Source �...
Page 510 c) Brazing portion of the center pipe of the three pipes from c) Brazing portion of the center pipe of the three pipes from the 4-way valve. the 4-way valve. Servicing � � SERVICING NOTES: NOTES: Cover the reversing valve with a wet cloth in order to Cover the reversing valve with a wet cloth in order to protect the reversing valve from excessively high protect the reversing valve from excessively high...
Page 511 SERVICING (2.1 Outdoor Unit) Do not touch the any electrical parts during LED201 (Red) on PCB3 is ON. Servicing If touched, electric shock will occur. 2.1.19 Removing Diode Module and Transistor Module Before this work, remove the service panel according to the item 2.1.2 “Removing Front Service Panel”. ...
Page 512 Do not touch the any electrical parts during LED201 (Red) on PCB3 is ON. If touched, electric shock will occur. 2.1.20 Removing Fan Module Before this work, remove the service panel according to the item 2.1.2 “Removing Front Service Panel”. Check to ensure that LED201 (Red) of the PCB3 is off.
Page 513 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE PCB (ELECTRICAL BOX FOR � CONTROL) PCB Mounting Plate RAS-5FSN Before this work, remove the front panel according to section 9.1.2, "Removing the Front Service Panel". a) Disconnect the connectors that are connected to the PCB and clamp the hook of the holder A by means of pinchers and pull out the PCB.
Page 514 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING OTHER ELECTRICAL COMPONENTS � PCB Mounting Plate (ELECTRICAL BOX FOR CONTROL) Before this work, remove the right-side front panel according to the section "Removing the Front Service Panel". a) Disconnect the cables that are connected to each electrical component.
Page 515 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE NOISE FILTER � 1) Remove the field wiring on the terminal board for the transmission (TB2) and the terminal board for the power source (TB1). 2) Remove the clamp for the field wiring by pinching and pulling the hook of the clamp by means of pinchers.
Page 516 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE ISPM � 1. Disconnect all the wires that are connected to the ISPM: Disconnect CN206, CN207. Disconnect N, P, P1, RB and R, S, T, U, V, W on ISPM. ISPM LED201 �...
Page 517 Servicing SERVICING � �WARNING: TURN OFF all the main switches REMOVING THE STOP VALVE � This procedure is an example for the RAS-10FSN. A similar procedure can be applied to other models. Before starting the work, collect the refrigerant into a cylinder from the cycle and turn off all the main switches.
Page 518 Servicing SERVICING Electrical Box � cording �WARNING: TURN OFF all the main switches ver. ll off. REMOVING THE ELECTRICAL COMPONENTS � Electrical Box Removing the electrical box he PCB. Ras – 5, 8, 10 FSN(E)/FXN(E) Before this work, remove the service access panel according cables to the section "Removing the Front Service Panel".
Page 519 emove the front service panel according to item 2.1.2 “Removing Front Service Panel”. emove the electrical box cover according to the item 2.1.16 “Removing Electrical Box”. isconnect the connector connected to the PCB. Clamp the hook of the holder (A) by pinchers and SERVICING ull it out.
Page 520 SERVICING (2.1 Outdoor Unit) TURN OFF all power source switches. (4) Removing Other Electrical Components Servicing Disconnect the cables connected to each electrical components and remove the screws mounting of the electrical components. When replacing the electrical box behind the PCB mounting plate, remove two screws for the PCB mounting plate and turn the plate towards the front side.
Page 521 SERVICING (2.1 Outdoor Unit) Do not touch the any electrical parts during LED201 (Red) on PCB3 is ON. If touched, electric shock will occur. Servicing 2.1.18 Removing PCB3 Before this work, remove the service panel according to the item 2.1.2 “Removing Front Service Panel”. Check to ensure that LED201 (Red) of the PCB3 is off.
Page 522 Servicing 10.4. RCI 4-Way Cassette 10.4.1. REMOVING THE LONG LIFE FILTER Knob 1. The long life ﬁlter is located inside of the air intake grille. Detach the ﬁlter after opening the air intake grille. By pushing the knob in the arrow mark direction, the air intake grille can be opened.
Page 523 Servicing 10.4.4. REMOVING THE OPTIONAL AIR PANEL (Electrical Box) 1. Remove the electrical box cover according to the item "Removing the Electrical Box Cover". Disconnect the connector CN17 for louver motor on the indoor PCB. 2. Remove the air intake grille from the optional air panel. Main PCB 3.
Page 524 Servicing 10.4.6. REMOVING THE BELL-MOUTH 1. Remove three (3) screws ﬁxing the bell-mouth onto the drain pan and remove the bell-mouth. 2. Remove nut and washer ﬁxing the runner and remove the runner. 3. Remove the earth wire for the fan motor. (Only for 4, 5 and 6 HP). 4.
Page 525 Servicing 10.4.8. REMOVING THE DRAIN PAN 1. Remove the optional air panel according to the item "Removing the Optional Air Panel". 2. Remove the electrical box cover according to the item "Removing the Electrical Box Cover". Disconnect the connectors of the air outlet thermistor, piping thermistors (2), electronic expansion valve, drain pump, ﬂoat switch and fan motor.
Page 526 Servicing  WARNING: TURN OFF all the main switches and disconnect the power supply from the unit. 10.4.11. REMOVING THE THERMISTOR FOR LIQUID (Up-close view of Thermistor Installation) PIPE AND GAS PIPE 1. Remove the optional air panel according to the item Fixing Plate of thermistor "Removing the Optional Air Panel".
Page 527 Servicing 6. Turn the lock nut by a few turn, and the drive part is separated Fig. 1 Expansion Valve from the screw and can be removed. 7. Prepare the new drive part for replacement (service part) with the position of the driver (drive screw) already adjusted. Pulse Motor ...
Page 528 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5. RCIM – FSN 4-Way Cassette 10.5.1. REMOVING THE AIR FILTER 1. The air filter is located inside of the air intake grille. Detach Knob the filter after opening the air intake grille. By pushing the knob in the arrow mark direction, the air intake grille can be opened.
Page 529 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.4. REMOVING THE OPTIONAL AIR PANEL Enlarged View 1. Open the intake air grille and disconnect the connector for Connector for Auto Swing Motor the auto louver (Air Panel Side) Connector for Auto Swing Motor (Indoor Unit Side) Without Air Inlet Grille...
Page 530 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.5. REMOVING THE FAN RUNNER AND FAN MOTOR 1. Remove the intake air grille according to “1. Removing Air Float Switch Connector Filter and Intake Air Grille.” (CN14) 2. Drawing Electrical Box Electrical Box –...
Page 531 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.7. REMOVING THE PRINTED CIRCUIT BOARD (PCB) 1. Remove the air intake grille according to the "Removing the Power Air Intake Grille". transformer 2. Remove the electrical box cover according to the item Holder "Removing the Electrical Box Cover".
Page 532 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.9. REMOVING THE DRAIN-UP MECHANISM 1. Remove the drain pan according to the item "Removing the Drain Pan". Fixing Plate Drain-Up Mechanism Screws 2. Remove the hose band and remove the drain hose. 3.
Page 533 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.10. REMOVING THE FLOAT SWITCH 1. Remove the drain pan according to “Removing Drain Pan”. Screw Resin Nut 2. Removing Float Switch: Fixing Plate for Float – The float switch is located at the rear side of the drain pan.
Page 534 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.11. REMOVING THE THERMISTOR FOR LIQUID PIPE AND GAS PIPE 1. Remove the optional air panel according to the item Heat Exchanger "Removing the Optional Air Panel". Motor 2. Remove the bell-mouth according to No.3 of the item "Removing the Fan Runner and Fan Motor".
Page 535 Servicing SERVICING � WARNING: TURN OFF all the main switches � NOTE: Do not apply strong forces such as the rotating torque Pulse Motor and the bending load to the motor by holding the motor by hand when tightening the lock nut. The direction of the eccentric part of the motor is Drive Part assembled as the eccentric part of the valve body, the...
Page 536 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.5.12. REMOVING THE AUTOMATIC LOUVER MOTOR 1. Remove the optional air panel according to the item "Removing the Optional Air Panel". Louver Setscrew (1) 2. Disconnect the connecter connected to the AS motor. 3.
Page 537 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.6. RCD 2-way cassette 10.6.1. REMOVING THE LONG-LIFE FILTER AND THE AIR INLET GRILLE Upper Part of Filter 1. The long-life filter is located inside of the air inlet grille. You Upper Part of Filter can open the air inlet grille by pushing the knob as shown Hinges...
Page 538 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.6.4. REMOVING THE FAN RUNNER AND THE FAN MOTOR 1. Remove the optional air panel according to the section "Removing the Optional Air Panel". 2. Removing the Electrical Box. a. Disconnect the connectors for each wire. b.
Page 539 Servicing SERVICING � WARNING: TURN OFF all the main switches 4. Remove the fan runner and the fan motor Remove the fan runner after removing the cap nut and the washer that fixes the fan runner. – Disconnect the ground wire for the fan motor. –...
Page 540 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.6.6. REMOVING THE FLOAT SWITCH 1. Remove the air inlet grille according to the section Removing the Long-Life Filter and the Air Inlet Grille". 2. Remove the bell mouth according to the section "Removing the Fan Runner and the Fan Motor".
Page 541 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.6.8. REMOVING THE DRAIN PAN 1. Remove the air inlet grille according to the section RCD-1.0 to 3.0 FSN "Removing the Long-Life Filter and the Air Inlet Grille". RCD-1.5 to 3.0 FSN 2.
Page 542 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.6.9. REMOVING THE THERMISTOR FOR LIQUID PIPE AND GAS PIPE 1. Remove the optional air panel according to the section "Removing the Optional Air Panel". Liquid Side Thermistor for Liquid Side Thermistor for 2.
Page 543 Servicing SERVICING � WARNING: TURN OFF all the main switches 9. Tighten the lock nut with a spanner after tightening lightly by hand. The tightening torque should be within the range of 12Nm (120kg-cm) to 15Nm (150kg-cm). Pulse Moto r Pulse Motor �...
Page 544 Servicing 10.7. RPI - IN-THE-CEILING TYPE RPI-2.0~6.0 FSN1E 10.7.1. REMOVING THE ELECTRICAL BOX AND ELECTRICAL PARTS 1. Remove Electrical Box cover, for accessing the electrical components. Electrical box cover location Electrical Box Electrical Box cover Fixing Screw P.C.B. Fixing Screw Capacitor Fixing Screw Transformer...
Page 545 Servicing 10.7.3. REMOVING THE OUTLET AIR THERMISTOR  NOTE: To disconnect this component properly from the PCB, see the Electrical Wiring Diagram chapter of this Manual. Outlet Termistor 1. The thermistor is located on the outlet side as shown in the detail.
Page 546 Servicing 10.7.5. REMOVING THE FAN PARTS  Parts list: (Fan Motor / Fan Casing / Runner). 1. Perform step 1 from point 10.7.2 of this chapter. 2. Remove the Tape located on the center of the Casing, push clousing lockers and remove the half part of the Casing.
Page 547 Servicing 10.7.7. REMOVING THE FLOAT SWITCH   NOTE: To disconnect this component properly from the PCB, see the Electrical Wiring Diagram chapter of this Manual 1. Perform steps 1 and 2 from point 10.7.4 of this chapter. Float Switch location 2.
Page 548 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.8. RPC Ceiling type 10.8.1. REMOVING THE AIR FILTER 1, The air filter is located inside of the air inlet grille. Remove the air filter after opening the air inlet grilles. 2.
Page 549 Servicing SERVICING � WARNING: TURN OFF all the main switches Fixing screw 3. Pull out the deflector including the bearing after removing the four fixing screws at the right and the left. Air deflection Air deflection Bearing 10.8.4. REMOVING THE FAN MOTOR 1.
Page 550 Servicing SERVICING � WARNING: TURN OFF all the main switches 6. Loosen the screws by means of a hexagon wrench. Motor loosen Allen key Coupling 7. After removing the fixing band, remove the fan motor by sliding the fan motor backwards. Pay attention not to drop Fixing band the fan motor.
Page 551 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.8.7. REMOVING THE AUTOMATIC LOUVER MOTOR 1. Remove the right-side panel according to the section "Removing the Side Panel". 2. Remove the M4 screws and remove the AS motor assembly from the right shaft of the discharge air grille.
Page 552 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.8.9. REMOVING THE PRINTED CIRCUIT BOARD (PCB) 1. Open the air inlet panel according to the section "Removing the Air Filter". 2. Disconnect the wiring connector for the fan motor. 3.
Page 553 part of holder Servicing 10.9. RPK-1.5/2 10.9.1. 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 554 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.9.3. REMOVING THE MOTOR FOR THE AUTOMATIC LOUVER Connector (White) Connector (Black) 1. Remove the front panel according to the section "Removing the Front Panel". Screws (4 pcs.) 2. Remove the electrical box according to the section "Removing the Electrical Box Panel".
Page 555 Servicing SERVICING � WARNING: TURN OFF all the main switches 5. Removing the thermistor for the discharge air Vertical louver Remove the thermistor for the discharge air from the holder of the vertical louver and the hook at the right side of the air outlet.
Page 556 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.9.6. REMOVING THE DRAIN PAN 1. Remove the front panel according to the section "Removing Heat Heat exchanger the Front Panel". exchanger 2. Remove the electrical box according to the section Detach "Removing the Electrical Box Panel".
Page 557 Servicing SERVICING � WARNING: TURN OFF all the main switches 7. Lift up the heat exchanger. Draw out the rear piping of the Unit body heat exchanger from the square hole by pulling the upper part of the heat exchanger forward, and then remove the Square hole heat exchanger.
Page 558 Servicing SERVICING � WARNING: TURN OFF all the main switches Partition 6. For attaching the fan motor and the fan, perform in reverse Partition plate plate order the procedure for removing the fan motor and the fan. Fan motor Bearing 7.
Page 559 Servicing SERVICING � WARNING: TURN OFF all the main switches � NOTE: Do 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 Pulse Motor...
Page 560 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10. RPK-2.5~4.0 � NOTE: In order to remove the filter, you need to change the louver position using one of the following remote control switches: PC-P1HE and PC-RLH3A. SET TEMP. HIGH SWING ON/OFF TIMER...
Page 561 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.1. REMOVING THE RIGHT SIDE COVER 1. Remove one screw fixing the right side cover. Release Catch Remove Screw. Remove Screw Release Catch 2. Release the lower left side catch of the right side cover. Pull the right cover slighty and release the catch.
Page 562 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.2. REMOVING THE THERMISTORS FOR LIQUID PIPE, GAS PIPE, DISCHARGE AIR AND SUCTION AIR Expansion 1. Remove the right side cover according to the section Expansion Valve “Removing right side cover”, and remove the suction air Valve grille.
Page 563 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.3. REMOVING THE DRAIN PAN 1. Remove the right side cover according to the section “Removing right side cover”, and remove the suction air grille. 2. Pull the cover of the discharge air lower side toward the front side, and remove it.
Page 564 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.4. REMOVING THE ELECTRICAL BOX PANEL Connector for 1. Remove the right side cover according to the section Connector for Connector for Gas Fan Motor (CN29) Connector for Gas “Removing right side cover”, and remove the suction air and Freeze Protection Fan Motor (CN29) and Freeze Protection...
Page 565 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.5. REMOVING THE HEAT EXCHANGER 1. Remove the right side cover according to the section “Removing right side cover”, and remove the suction air Pipe grille. Pipe Holder Holder 2. Remove the drain pan according to the section “Removing M4 Truss the drain pan”.
Page 566 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.6. REMOVING THE FAN AND THE FAN MOTOR 1. Remove the heat exchanger according to the section “Removing the heat exchanger”. Screw Screw 2. Remove one screw and two catches at the cover of the Cover Cover upper side fan motor and remove the cover.
Page 567 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.7. 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 Left Side Cover Cover...
Page 568 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.10.8. REMOVING THE ELECTRONIC EXPANSION VALVE COIL 1. Remove the front panel according to the section "Removing the Front Panel". 2. Remove the electrical box according to the section "Removing the Electrical Box Panel". 3.
Page 569 Servicing SERVICING � WARNING: TURN OFF all the main switches � NOTE: Do 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 Moto r Pulse Motor Although the direction of the eccentric part of the motor is...
Page 570 valve again. Fig. 1 Expansion Valve Fig. 2 Direction of Drive Part Servicing 8. After finishing the replacement, attach the electronic Fig. 2 Direction of Drive Part Fig. 1 Expansion Valve expansion valve by performing in reverse order the procedure for removing the electronic expansion valve. SERVICING �...
Page 571 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.2. REMOVING FRONT PANEL 1. Open the left panel completely. After removing the back of right arm pushing towars inside, Flat Panel remove the flat panel slowly pulling and closing. 2.
Page 572 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.3. REMOVING THE ELECTRICAL BOX PANEL 1. Remove the front panel according to the section "Removing Fixed screw for electrical box Fixed screw for front panel". earth wiring 2. Remove the cover of the electrical Box Panel 3.
Page 573 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.5. REMOVING THE THERMISTORS FOR LIQUID PIPE, GAS PIPE, DISCHARGE AIR AND SUCTION AIR 1. Remove the front panel according to the section "Removing Thermistor for discharge air Thermistor for defrosting front panel".
Page 574 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.6. REMOVING THE DRAIN PAN 1. Remove the front panel according to the section "Removing front panel". 2. Remove the electrical box panel panel according to the section "Removing electrical box panel" �...
Page 575 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.7. REMOVING THE HEAT EXCHANGER 1. Remove the front panel according to the section "Removing Unit back side Piping cover front panel". 2. Remove the electrical box panel panel according to the section "Removing electrical box panel".
Page 576 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.8. REMOVING THE FAN AND THE FAN MOTOR 1. Remove the heat exchanger according to the section Motor holder "Removing the heat exchanger". 2. Remove the motor holder 3. Loose the screw that fixes fan motor bearing and the fan. Motor holder fixed screw Fan Motor...
Page 577 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.9. REMOVING THE ELECTRONIC EXPANSION VALVE COIL 1. Remove the front panel according to the section "Removing front panel". 2. Remove the electrical box panel panel according to the section "Removing electrical box panel" 3.
Page 578 Servicing SERVICING � WARNING: TURN OFF all the main switches 10.11.10. REMOVING THE PRINTED CIRCUIT BOARD 1. Remove the electrical box panel panel according to the section "Removing electrical box panel" Receiver wiring connector 2. Remove service board wiring connector of control PCB, sensor wiring connector and earth line.
Page 579 Servicing SERVICING � WARNING: TURN OFF all the main switches 7. Leave power source printed board unresolved after removing space lock of power source printed board (Removing the spacer totally is not required). Spacer 8. Remove the side cover of electricl box after removing the 3 locks of side cover.
Page 580 Servicing SERVICING /100 � WARNING: TURN OFF all the main switches 10.12. RPF Floor Type 10.12.1. 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.
Page 581 Servicing SERVICING /101 � WARNING: TURN OFF all the main switches 10.12.4. REMOVING THE FRONT PANEL 1. Remove the air filter according to the section "Removing the Air Filter". 2. Remove the front panel from the slit after removing the four Front fixing screws at the lower part and pulling out the front panel panel...
Page 582 Servicing SERVICING /102 � WARNING: TURN OFF all the main switches 8. After removing the fixing plate, remove the fan motor by sliding the fan motor backwards. Pay attention not to drop the fan motor. Band Fixing screw 10.12.6. REMOVING THE PRINTED CIRCUIT BOARD (PCB) 1.
Page 583 Servicing SERVICING /103 � WARNING: TURN OFF all the main switches 10.12.7. REMOVING THE THERMISTORS FOR LIQUID PIPE AND GAS PIPE 1. Remove the air inlet grille according to the section "Removing the Air Inlet Grille". Side panel 2. Remove the air filter according to the section "Removing the Air Filter".
Page 584 Servicing SERVICING /104 � WARNING: TURN OFF all the main switches 3. Remove the front upper panel after removing the eleven fixing screws. Screw Front upper panel 10.13.3. REMOVING THE FAN MOTOR 1. Remove the air filter according to the section "Removing the Air Filter".
Page 585 Servicing SERVICING /105 � WARNING: TURN OFF all the main switches 10.14. CLEANING THE INDOOR HEAT EXCHANGER 10.14.1. REQUIRED TOOLS FOR CLEANING (FOR ALL INDOOR UNITS) Tool Remarks Cleaning water pump A water pump that is equipped with a tank is recommended Water tank clean water Approx.
Page 586 Servicing SERVICING /106 � WARNING: TURN OFF all the main switches Remarks Cleaning water collector − In-the-ceiling type − 2-way cassette − Wall type − Ceiling type Insert the Insert the bar Transparent 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 587 Servicing SERVICING /107 � WARNING: TURN OFF all the main switches 10.14.2. CLEANING THE 4-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. Procedure: �...
Page 588 Servicing SERVICING /108 � WARNING: TURN OFF all the main switches 2. Scratch off the dust on the inner surface of the heat exchanger downwards by means of a brush. Collect all the dust in a bucket or a carton box. 3.
Page 589 Servicing SERVICING /109 � WARNING: TURN OFF all the main switches 5. Insert the spray nozzle through the hole of the cleaning water collector. Operate the water pump and clean the dust on the heat exchanger. After cleaning, spray the clean water in order to remove the cleaning water.
Page 590 Servicing SERVICING /110 � WARNING: TURN OFF all the main switches 7. Check the insulation of the drain pump with a megohm- meter. Make sure that the insulation is greater than 1 MΩ when 500V is applied. 8. Connect the wiring as the wiring was connected before. 9.
Page 591 Servicing SERVICING /111 � WARNING: TURN OFF all the main switches 6. Suspend the cleaning water collector from the indoor unit. Indoor unit – Connect a rope to the suspension bracket of the indoor unit and put the rope downwards. –...
Page 592 Servicing SERVICING /112 � WARNING: TURN OFF all the main switches 10.14.4. 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.
Page 593 Servicing SERVICING /113 � WARNING: TURN OFF all the main switches 4. By lifting the drain hose, put the end of the hose in a bucket. Bucket Drain hose 5. Removing the Dust on the Heat Exchanger Remove the dust on the heat exchanger with a brush by scratching the dust downwards.
Page 594 Servicing SERVICING /114 � WARNING: TURN OFF all the main switches 8. After checking that no power is supplied, connect the drain pipe and remove the insulation tape for the wiring connectors. Then, mount the front panel correctly. 9. Check the insulation of the terminal board in the electrical box.
Page 595 Servicing SERVICING /115 � WARNING: TURN OFF all the main switches 9. Cover all the components (except the drain pan) with a vinyl sheet in order to avoid the splashed cleaning water. 10. Spray the cleaning water over the fins from the rear side of the heat exchanger.
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Page 597 Main partts Main parts CONTENTS MAIN PARTS ___________________________________________________________11-1 11.1. Inverter _______________________________________________________________11-2 11.1.1. Speciﬁcations of Inverter FSN(E)/FXN(E) ____________________________________11-2 11.1.2. Speciﬁcations of Inverter FSVNE ___________________________________________11-4 11.1.3. Inverter Time Chart ______________________________________________________11-5 11.1.4. Protective Function ______________________________________________________11-6 11.2. Thermistor _____________________________________________________________11-7 11.2.1. Resistance Value of the Thermistor __________________________________________11-8 11.3.
Page 598 Main parts MAIN PARTS 11.1. INVERTER 10.1. INVERTER 11.1.1. SPECIFICATIONS OF INVERTER FSN(E)/FXN(E) 10.1.1. SPECIFICATIONS OF INVERTER FSN(E)/FXN(E) Aplicable model RAS-5~42FSN(E)/FXN(E) Aplicable model RAS5~30FSN(E)/FXN(E) Aplicable power source 3 Phase. 380V, 415V 50 Hz Applicable Power Source 3 Phase, 380V, 415V 50/HZ Input voltage RAS-5~42FSN(E) 8~64A Input Voltage...
Page 599 Main partts MAIN PARTS Protection Function Overcurrent Protection for Inverter Detecting current is more than 150% of the rated current. Rated Current x 150% Rated Current x 105% 20µs 20ms Time Internal Protection (1) Short-Circuit Trip of Arm Transistor Module or ISPM (2) Instantaneous Overcurrent Trip (3) Instantaneous Overcurrent Trip (4) Electronic Thermal Trip...
Page 600 Main parts MAIN PARTS 11.1.2. SPECIFICATIONS OF INVERTER FSVNE 10.1.2. SPECIFICATIONS OF INVERTER FSVNE Applicable Model RAS-3FSVNE, RAS-4/5FSVNE Applicable Power Source 1 Phase, 220V, 240V 50Hz/220V 60 Hz Input Voltage 180 ~ 264 VAC Input Current RAS-3FSVNE: 25A; RAS-4/5HVRNE:32A (at Rated current 220/240V 50Hz) Control Method Vector Control Range Output Frequency...
Page 601 Main partts MAIN PARTS 11.1.3. INVERTER TIME CHART 10.1.3. INVERTER TIME CHART Main Circuit Frequency LOW Power Source Frequency All bit 1 All bit 1 Operation HIGH Frequency Instruction Output Voltage Soft Start-Stop (Frequency) The changing speed depends on the outer setting.
Page 602 Main parts MAIN PARTS 11.1.4. PROTECTIVE FUNCTION 10.1.4. PROTECTIVE FUNCTION 1. Excessive High or Low Voltage for Inverter 4. Protection of Transistor Module and ISPM a) Level of Detection a) Level of Detection - When the voltage of direct current is greater than When some of the output terminals between “U”...
Page 603 Main partts MAIN PARTS 11.2. THERMISTOR 10.2. THERMISTOR Thermistors for the outdoor unit Thermistor for the discharge gas temperature (THM8 for inverter compressors; THM9, THM12, THM13, THM14 and THM16 for constant speed compressors) Thermistor for the evaporating temperature (THM10, THM11 Thermistor for the and THM15) outdoor ambient...
Page 604 MAIN PARTS Main parts 11.2.1. RESISTANCE VALUE OF THE 10.2.1. RESISTANCE VALUE THERMISTOR OF THE THERMISTOR Overheating prevention of the discharge gas � (Thermistor for checking the upper part of compressor: THM8, THM9, THM12, THM13, THM14 and THM16) a. There is a thermistor that checks the temperature of the upper part of the compressor in order to prevent the discharge gas from overheating.
Page 605 Main partts MAIN PARTS Thermistor for the room temperature control Thermistor for the control of the discharge air � � (thermistor for the inlet air temperature of the temperature (Thermistor for the discharge air indoor unit, THM1) temperature of the indoor unit, THM2) The thermistor for the inlet air temperature (THM1) controls The thermistor for the discharge air temperature (THM2) the room temperature.
Page 606 Main parts MAIN PARTS 11.3. ELECTRONIC EXPANSION VALVE 10.3. ELECTRONIC EXPANSION VALVE 11.3.1. ELECTRONIC EXPANSION VALVE FOR THE OUTDOOR UNIT 10.3.1. ELECTRONIC EXPANSION VALVE FOR THE OUTDOOR UNIT Micro-computer Pulse signal Pulse motor 2-Phase permanent magnetic pulse motor Control 0 to 500 pulse by 1 pulse Refrigerant flow control Precise control Needle...
Page 607 MAIN PARTS Main partts 11.3.2. ELECTRONIC EXPANSION VALVE FOR THE INDOOR UNIT 10.3.2. ELECTRONIC EXPANSION VALVE FOR THE INDOOR UNIT Micro-computer Pulse signal Pulse Motor 2-Phase permanent magnetic pulse motor Gear Control 0 to 2,000 pulse by 1 pulse Output Shaft Refrigerant flow control Lock Nut Bellows...
Page 608 Main parts MAIN PARTS 11.4. PRESSURE SENSOR 10.4. PRESSURE SENSOR High-pressure control Low-pressure control A high-pressure sensor detects the high pressure during the A low-pressure sensor detects the suction pressure during heating process. The PID control with the operation capacity the cooling process.
Page 609 Main partts MAIN PARTS 11.5. AUTO LOUVER MECHANISM 10.5. AUTO LOUVER MECHANISM 11.5.1. RCI (4-WAY CASSETTE TYPE) 10.5.1. 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.
Page 610 Main parts MAIN PARTS 11.5.2. RCD (2-WAY CASSETTE TYPE) 10.5.2. 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. Sttoper Louver Bearing...
Page 611 Main partts MAIN PARTS 11.5.3. RPC (CEILING TYPE) 10.5.3. RPC (CEILING TYPE) 1. Auto-Louver Operation (1) AS Motor The louvers of the optional air panel with autolouver swing simultaneously by a drive motor. (2) Pinion The parts and the principle of the auto-louver mechanism are (5) Cover shown in the right figure.
Page 612 Main parts MAIN PARTS 11.6. SCROLL COMPRESSOR 10.6. SCROLL COMPRESSOR 11.6.1. RELIABLE MECHANISM FOR LOW VIBRATION AND LOW SOUND 10.6.1. RELIABLE MECHANISM FOR LOW VIBRATION 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. 11.6.2.
Page 613 Field work instruction Field work instruction CONTENTS Field work instruction ____________________________________________________ 12-1 12.1. Checking the Power Source and the Wiring Connection ________________________ 12-2 12.2. Burnt-Out Compressor Due to an Insufﬁcient Refrigerant Charge __________________ 12-2 12.3. Insufﬁcient Cooling Performance when a Long Piping Is Applied __________________ 12-3 12.4.
Page 614 Field work instruction FIELD WORK INSTRUCTION WARNING: TURN OFF all the main switches. 12.1. CHECKING THE POWER SOURCE AND THE WIRING CONNECTION 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 fuse cut out?
Page 615 Field work instruction FIELD WORK INSTRUCTION 12.3. INSUFFICIENT COOLING PERFORMANCE WHEN A LONG PIPING IS APPLIED 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.
Page 616 Field work instruction FIELD WORK INSTRUCTION 12.5 ALARM CODE “31” 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. The combination of the indoor units and the outdoor unit was the following. Cause Power source...
Page 617 Field work instruction FIELD WORK INSTRUCTION 12.7 ATTENTION FOR SET-FREE FXN(E) SERIES 11.7. ATTENTION FOR SET-FREE FXN(E) SERIES The SET-FREE FXN(E) series has been designed for the Simultaneous COOL/HEAT Operation � system to provide simultaneous cooling and heating � Phenomenon operations during intermediate seasons and the refrigerant During the simultaneous cooling and heating operation, cycle is controlled according to heat balance of cooling and...
Page 618 Field work instruction FIELD WORK INSTRUCTION Influence by ON/OFF Operation of Other Piping Length of Farthest Indoor Unit: � � Rooms: � Phenomenon � Phenomenon During the simultaneous cooling and heating operation, the cooling capacity of the farthest indoor unit is During the simultaneous cooling and heating operation, decreased when the farthest indoor unit is in cooling the actual capacity of the indoor units in operation is...
Page 619 Field work instruction FIELD WORK INSTRUCTION � Example * In Case of Start-Up in Cooling Operation Mode (and * In Case of Start-Up in Simultaneous COOL/HEAT Changeover to Simultaneous COOL/HEAT Operation Operation Mode Mode Afterward) Cooling Cooling Heating Heating 10 to 20min. Automatic COOL/HEAT Operation �...
Page 620 Field work instruction FIELD WORK INSTRUCTION 12.8 GUIDELINE FOR SELECTING THE DRAIN PIPE FOR THE INDOOR UNIT 11.8. GUIDELINE FOR SELECTING THE DRAIN PIPE FOR THE INDOOR UNIT Method for selecting the drain pipe diameter � � NOTE: 1. Calculation of the Drain Flow Volume VP20 and VP25: Not Applicable to the Common Pipe Calculate that the drain flow volume is approximately VP30, VP40 and VP50: Applicable to the Common Pipe...
Page 621 Field work instruction FIELD WORK INSTRUCTION System A Outdoor unit System B Outdoor unit 12.9.3. COUNTERMEASURE FOR THE System B System A 11.9.3. COUNTERMEASURE FOR THE Refrigerant: 30kg Refrigerant: 35kg REFRIGERANT LEAKAGE ACCORDING REFRIGERANT LEAKAGE ACCORDING TO THE KHK STANDARD TO THE KHK STANDARD According to the KHK standards, you should arrange the facility as follows so that the refrigerant concentration will...
Page 622 Field work instruction FIELD WORK INSTRUCTION 12.11 SERVICE AND MAINTENANCE RECORD 11.11. SERVICE AND MAINTENANCE RECORD Check item Action Judgement Check item Action Judgement Is the service area Check for a leakage in sufficient? the electronic expansion ditto Good Not good valve.
Page 623 11.12.1. SERVICE AND MAINTENANCE RECORD BY MEANS OF THE 7-SEGMENT DISPLAY Field work instruction FIELD WORK INSTRUCTION 12.12 SERVICE AND MAINTENANCE RECORD BY MEANS OF THE 7-SEGMENT DISPLAY 11.12. SERVICE AND MAINTENANCE RECORD BY MEANS OF THE 7-SEGMENT DISPLAY 11.12.1. SERVICE AND MAINTENANCE RECORD BY MEANS OF THE 7-SEGMENT DISPLAY 12.12.1.
Page 624 Field work instruction FIELD WORK INSTRUCTION 12.12.2 PUMP-DOWN METHOD FOR REPLACING THE COMPRESSOR 11.12.2. 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 to the chapter "Removing the Parts of the Oudoor...
Page 625 Field work instruction FIELD WORK INSTRUCTION Procedure Remarks Check for a leakage of the check valve on the � When you stop the compressor for replacing: discharge gas side: � You can check the leakage of the check valve � DSW4-4 (Enforced stoppage of the compressor) by means of the Ps variation because the SVA �...
Page 626 Field work instruction FIELD WORK INSTRUCTION 12.12.3. CHECK DATA SHEET OF THE OUTDOOR UNIT (SET-FREE FSN(E)/FXN(E) SERIES) 11.12.3. CHECK DATA SHEET OF THE OUTDOOR UNIT (SET-FREE FSN(E)/FXN(E) SERIES) Client: Date: Remote control switch of the indoor unit Operation mode Test run is started at: Data is collected at: Data item Example...
Page 627 Field work instruction FIELD WORK INSTRUCTION �� Air inlet temperature �� Discharge air temperature Liquid pipe temperature of the heat exchanger �� of the indoor unit �� Outdoor temperature Gas pipe temperature of the heat exchanger ��...
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Page 630 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...

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