Page 1
Add: 218, Qianwangang Road, Economic & Technological Development Zone, Qingdao, P. R. China AVWT-114FKFSHA Http://www.hisense-vrf.com E-mail: export@hisensehitachi.com AVWT-136FKFSHA AVWT-154FKFSHA AVWT-170FKFSHA Specifications in this catalogue are subject to change without notice, in order that Hisense may bring the latest innovations to their customers. AVWT-190FKFSHA AVWT-212FKFSHA Combination Models: AVWT-228~ 848FKFSHA TCY12019005B TCY12019005B...
Page 2
This manual gives a common description and information for this heat pump air conditioner which you operate as well for other models. HISENSE pursues a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary ●...
Page 3
DANGER Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring connection without referring to ● our installation manual. If the instructions are not followed, it may result in a water leakage, electric shock or a fire. In case of fire, cut off the power at the first time;...
Page 4
The standard utilization of the unit shall be explained in these instructions. Please contact your local agent, as the occasion arises. HISENSE’s liability shall not cover defects arising from the alteration performed by a customer without HISENSE’s consent in a written form.
1. Outdoor Units 1.1 Models of Outdoor Unit 【Basic Unit】 Capacity 76(8HP) 96(10HP) 114(12HP) 136(14HP) 154(16HP) (kBtu/h(HP)) Model AVWT-76FKFSHA AVWT-96FKFSHA AVWT-114FKFSHA AVWT-136FKFSHA AVWT-154FKFSHA Capacity 170(18HP) 190(20HP) 212(22HP) (kBtu/h(HP)) AVWT-190FKFSHA AVWT-212FKFSHA Model AVWT-170FKFSHA Model 76~96 Model 114~136 Model 154~170 Model 190~212 【Combination of Basic Unit】※...
Model 760~848 1.2 Application Case Application Case 1: Three Pipes Heat Recovery System with Switch Box Capacity Ratio High /Low pressure gas pipe Total Capacity Ratio 50%~150% Low pressure gas pipe Liquid pipe Total 50%~150% Indoor Unit Without SW Box 0%~50% (Cooling Only) Water Module...
Page 14
Application Case 3: Two Pipes Heat Pump System Capacity Ratio High /Low pressure gas pipe Liquid pipe Total Capacity Ratio 50%~150% Indoor Unit 50%~150% Water Module 0%~60% NOTE: 1. The function setting of "H4" must be set to 2 on the outdoor unit PCB .
Table 1.2 Water Module Type List Nominal Power(100W) Water Module Type Wall-Mounted Type ○ Available ● The number of connectable indoor units with the outdoor unit is as follows. Comply with the condition as follows when installing the unit. ● A maximum total capacity of 150% and a minimum total capacity of 50% can be obtained by combination of the indoor units when compared with the nominal outdoor unit capacity.
Page 16
Max. Max. Outdoor Min. Single- Max. Number of Number of Recommended Unit Individual Number of Connectable Connectable Number of Model Operation Connectable Water Modules for Water Modules for Connectable I.U. (KBtu/h) (KBtu/h) I.U. Application Case Application Case 2 1&3 (Chapter 1.2) (Chapter 1.2) 592 (62HP) 614 (64HP)
1.4 Piping System 1.4.1 Connection of Refrigerant Pipes for 3 Pipes Heat Recovery System Model (kBtu/h) 76 (8HP) 96 (10HP) 114 (12HP) 136 (14HP) 154 (16HP) Low Pressure Gas 19.05 22.2 25.4 25.4 28.6 Piping High/Low Size 15.88 19.05 22.2 22.2 22.2 Pressure Gas...
Page 18
Model (kBtu/h) 228 (24HP) 250 (26HP) 272 (28HP) 290 (30HP) 308 (32HP) Outdoor Unit A 114 (12HP) 136 (14HP) 136 (14HP) 154 (16HP) 154 (16HP) Combination of Base Unit Outdoor Unit B 114 (12HP) 114 (12HP) 136 (14HP) 136 (14HP) 154 (16HP) Manifold Pipe HFQ-M202F...
Page 19
Model (kBtu/h) 444 (46HP) 462 (48HP) 478 (50HP) 494 (52HP) 510 (54HP) Outdoor Unit A 154 (16HP) 154 (16HP) 170 (18HP) 170 (18HP) 170 (18HP) Combination of Outdoor Unit B 154 (16HP) 154 (16HP) 154 (16HP) 170 (18HP) 170 (18HP) Base Unit Outdoor Unit C 136 (14HP)
Page 20
Model (kBtu/h) 530 (56HP) 550 (58HP) 570 (60HP) 592 (62HP) 614 (64HP) Outdoor Unit A 190 (20HP) 190 (20HP) 190 (20HP) 212 (22HP) 212 (22HP) Combination of Outdoor Unit B 170 (18HP) 190 (20HP) 190 (20HP) 190 (20HP) 212 (22HP) Base Unit Outdoor Unit C 170 (18HP)
Page 21
Model (kBtu/h) 648 (68HP) 664 (70HP) 680 (72HP) 700 (74HP) 720 (76HP) Outdoor Unit A 170 (18HP) 170 (18HP) 170 (18HP) 190 (20HP) 190 (20HP) Outdoor Unit B 170 (18HP) 170 (18HP) 170 (18HP) 170 (18HP) 190 (20HP) Combination of Base Unit Outdoor Unit C 154 (16HP) 170 (18HP)
Page 22
Model (kBtu/h) 740 (78HP) 760 (80HP) 782 (82HP) 804 (84HP) 826 (86HP) Outdoor Unit A 190 (20HP) 190 (20HP) 212 (22HP) 212 (22HP) 212 (22HP) Outdoor Unit B 190 (20HP) 190 (20HP) 190 (20HP) 212 (22HP) 212 (22HP) Combination of Base Unit Outdoor Unit C 190 (20HP) 190 (20HP)
Page 23
Model (kBtu/h) 848 (88HP) Outdoor Unit A 212 (22HP) Outdoor Unit B 212 (22HP) Combination of Base Unit Outdoor Unit C 212 (22HP) Outdoor Unit D 212 (22HP) Manifold Pipe1 HFQ-M682XF Manifold Pipe2 HFQ-M302F Manifold Pipe3 HFQ-M302F Low Pressure Gas 50.8 High/Low 44.5...
1.4.3 Pipe Connection Design Guidance for 3 Pipes Heat Recovery System Outdoor Outdoor Outdoor Outdoor Unit Unit Unit Unit Manifold Manifold Pipe1 Pipe2 (*) Keep the straight line distance of 500mm or more ① ② ① ① ① after the manifold pipe ②...
Page 31
①② Piping between outdoor unit Refer to 1.4.1. ③ Main Pipe (Base Unit or Manifold Pipe 1 to First Branch) Outdoor Unit Capacity Low Pressure Gas High/Low Pressure Gas Liquid First Branch Model (kBtu/h) Φ (mm) Φ (mm) Φ (mm) 76 (8HP) 19.05 15.88...
Page 32
⑥ Pipe after first branch (2 pipes portion) Pipe between last branch and indoor unit (2 pipes portion) ⑦ Total Indoor Unit Capacity Liquid Liquid Branch Pipe Model Indoor Unit Capacity (kBtu/h) Φ (mm) Φ (mm) Φ (mm) Φ (mm) (kBtu/h) Q <...
1.4.4 Pipe Connection Design Guidance for 2 Pipes Heat Pump System NOTE:...
Page 34
①② Piping between outdoor unit Refer to the 1.4.2. ③ Main Pipe (Base Unit or Manifold Pipe 1 to First Branch) Outdoor Unit Capacity High/Low Pressure Gas Liquid First Branch Model (kBtu/h) Φ (mm) Φ (mm) 76 (8HP) 19.05 9.53 HFQ-102F 96 (10HP) 22.2...
Page 35
1.When the liquid piping length is longer than 15m, use Φ9.53 pipe and reducer (field-supplied) instead of Φ6.35 pipe. 2.The pipe diameter should be the same as the indoor unit piping connection size. Piping Branch Restrictions In the case that the piping length from the first branch to the farthest indoor unit (L2) is over 40m, follow the instructions below when performing the field-supplied piping work.
1.4.5 Calculation of Additional Refrigerant Table 1.3 Additional Refrigerant Charge Calculation Although refrigerant has been charged into this unit, additional refrigerant charge is required. Determine the additional refrigerant quantity according to the following procedure, and charge it into the system. Record the additional refrigerant quantity to facilitate maintenance and servicing activities thereafter.
Page 37
Maximum Additional Refrigerant Charge Total additional charge must not exceed the maximum additional refrigerant charge indicated in the following table. Accordingly, allowable total piping length may become shorter than maximum value due to the limitation of maximum additional refrigerant amount. Capacity (kBtu/h) 114 136~154 170~228 250~272 290~340 360~424 444~530 550~648 664~804 826~848 Max.
1.4.6 Piping Connection Kit Dimensions (optional) Reducer for Reducer for Model Gas Line Liquid Line Gas Line Liquid Line ID 9.53 ID 25.4 ID 28.6 ID 12.7 ID 28.6 ID 25.4 ID 15.88 ID 15.88 ID 15.88 ID 25.4 ID 12.7 OD 28.6 Ø...
Page 39
Reducer for Reducer for Liquid Line Gas Line Models Gas Line Liquid Line ID 22.2 ID 12.7 ID 19.05 Ø 12.7 ID 9.53 ID 9.53 ID 15.88 ID 15.88 Ø 9.53 ID 6.35 OD 6.35 Ø 25.4 ID 19.05 ID 9.53 ID 9.53 19.05 Ø...
Page 40
Reducer for Reducer for Gas Line Liquid Line Models Gas Line Liquid Line Unit: mm, ID: Inner Diameter, OD: Outer Diameter...
Page 41
Reducer for Reducer for Low Pressure High Pressure Reducer for Model Liquid Line Low Pressure High Pressure Gas Line Gas Line Liquid Line Gas Line Gas Line ID 9.53 ID 25.4 ID 25.4 ID 28.6 ID 28.6 ID 12.7 ID 28.6 ID 28.6 ID 25.4 ID 25.4...
Page 42
Reducer for Reducer for Low Pressure High Pressure Reducer for Model Liquid Line High Pressure Low Pressure Liquid Line Gas Line Gas Line Gas Line Gas Line ID15.88 ID15.88 12.7 Ø Ø12.7 Ø9.53 Ø 25.4 ID12.7 ID12.7 Ø 9.53 ID9.53 ID9.53 ID9.53 Ø...
Page 43
Low Pressure High Pressure Reducer for High Reducer for Reducer for Low Model Liquid Line Liquid Line Gas Line Gas Line Pressure Gas Line Pressure Gas Line Unit: mm, ID: Inner Diameter, OD: Outer Diameter...
Connection of refrigerant gas pipe (low pressure) ØA Connection by welding Connection of refrigerant gas pipe (high/low pressure) ØB Connection by welding Connection of refrigerant liquid pipe ØC Connection with flare opening Unit: mm Sizes Model AVWT-76FKFSHA 19.05 15.88 9.53 AVWT-96FKFSHA 22.2 19.05 9.53...
Page 56
Unit: mm Model:AVWT-114*,AVWT-136* 105 100 45 Drain port (Φ26×2) (68) (68) 1075 Drain pipe connector (optional) Drain port (Φ26×2) Drain pipe connector (optional) Connection of power cable (Φ46 via hole) Connection of communication cable (Φ20×2 via hole) Connection of Refrigerant pipeline Anchor bolt fixing hole (235×113 square hole) Maintenance panel...
Page 57
Unit: mm Model:AVWT-154*,AVWT-170* Drain port (Φ26×5) (68) 1217 (68) Drain pipe connector (optional) Connection of power cable (Φ46 via hole) Connection of communication 4-20×15 cable (Φ20×2 via hole) Connection of Refrigerant pipeline (235×113 square hole) Anchor bolt fixing hole Maintenance panel Electrical box Connection of Refrigerant gas pipe ΦA Connection by welding...
Page 58
Unit: mm Model:AVWT-190.*,AVWT-212* (68) 1464 (68) Drain port (Φ26×5) Drain pipe connector (optional) Connection of power cable (Φ46 via hole) 4-20×15 Anchor bolt fixing hole Connection of Refrigerant pipeline Connection of communication cable (Φ20×2 via hole) (235×113 square hole) Maintenance panel Electrical box Connection of Refrigerant gas pipe ΦA Connection by welding...
1.8 Sound Data Measurement point: 1 meter from the service cover surface and 1.5 meters from floor level. AVWT-76FKFSHA AVWT-96FKFSHA Heating Heating NC-70 NC-70 NC-65 NC-65 NC-60 NC-60 Cooling NC-55 NC-55 Cooling NC-50 NC-50 NC-45 NC-45 Night Mode NC-40 NC-40...
Capacity Characteristic 1.9.1 Cooling Capacity at Different Temperatures Please refer the following tables for cooling capacities, in which: Q: Total Capacity P: Input Power To: Outdoor temperature, unit: ℃, dry bulb Ti: Indoor temperature, unit: ℃, wet bulb NOTE: 1. The table shows the reference value of a cooling operation. This will change depends on the installation.
1.9.2 Heating Capacity at Different Temperatures Please refer the following tables for heating capacities, in which: Q: Total Capacity P: Input Power To: Outdoor temperature, unit: ℃, wet bulb Ti: Indoor temperature, unit: ℃, dry bulb NOTE: 1. The table shows the reference value of a heating operation. This will change depends on the installation.
1.10 Capacity Correction Based on Refrigerant Piping Length < Cooling Capacity > Correction factor for cooling capacity according to piping length. The correction factors are shown in the following figure. The cooling capacity should be corrected according to the following formula: Equivalent Piping Length for ●...
Page 518
<Heating Capacity > Correction factor for cooling capacity according to piping length. The correction factors are shown in the following figure. Equivalent Piping Length for The heating capacity should be corrected according to the following formula: ● one 90° elbow is 0.5m. ●...
1.11 Correction Factor According to Defrosting Operation The heating capacity in the preceding paragraph excludes the condition of the frost or the defrosting operation period. In consideration of the frost or the defrosting operation, the heating capacity is corrected by the equation below. Corrected Heating Capacity = Correction Factor ×...
PRODUCT SPECIFICATION 1.12.2 Control Logic (1) Cycle Control Summary of Control Cooling Operation* Heating Operation Simultaneous Operation Control Device Purpose Contents Purpose Contents Purpose Contents of Control of Control of Control of Control of Control of Control Inverter Frequency Mainly Cooling: Control is carried out to Cooling Capacity bring the Cooling I.U.
Page 524
PRODUCT SPECIFICATION (2) Heat Exchanger Mode Control In accordance with the connectable indoor unit operation mode, the outdoor unit heat exchanger is switched as shown in the table below. Heat Exchanger Mode at Cooling: Condenser COND Heat Exchanger Mode at Heating: Evaporator EVAP The Number of Outdoor Unit: 1 (one) Cooling Mode Mainly Cooling Mode...
1.12.3 Standard Operating Procedure Chart AVWT-76*~212* Cooling operation I.U.: Indoor Unit O.U.: Outdoor Unit Auto - louver Only for Indoor Unit with Auto-Louver 0 Reset Start of Transmitting between Power to Power to PCB I.U. and O.U. I.U.: ON in I.U.: ON Start of Transmitting between I.U.
Page 526
I.U.: Indoor Unit Start of Auto-Louver Pressing Only for Air Panel AUTO-LOUVER Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Switch After 3 min. MD Stop 20 sec. For Unit with Drain Pump Power to MIF : OFF RUN/STOP Lamp: OFF, COOL, Set Fan Speed &...
Page 527
I.U.: Indoor Unit O.U.: Outdoor Unit Auto - louver Only for Indoor Unit 0 Reset with Auto-Louver Start of Transmitting between Power to PCB I.U. and O.U. Power to in I.U.: ON Start of Transmitting between I.U.: ON I.U. and Remote Control Switch (Higher than Activation Level) MD : ON For Unit with...
Page 528
I.U.: Indoor Unit Start of Auto-Louver Pressing Only for Air Panel AUTO-LOUVER Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Switch After 3 min. MD Stop 20 sec. For Unit with Drain Pump Power to MIF : OFF RUN/STOP Lamp: OFF, COOL, Set Fan Speed &...
Page 529
Power Supply Cooling Operation or Dry Operation Is compressor operated for more than *30 min.? * The judging time varies under the condition. Cooling Operation or Dry Operation Pipe Surface Temp. of > 0 Indoor Heat Exchanger or Gas Pipe Surface Temp.
Page 530
I.U.: Indoor Unit O.U.: Outdoor Unit Start of Transmitting between Power to Power to PCB I.U. and O.U. Start of I.U.: ON in I.U.: ON Transmitting between I.U. and Remote Control Switch only for Indoor Unit Auto - louver 0 Reset with Auto-Louver Setting Operation...
Page 531
I.U.: Indoor Unit O.U. Outdoor Unit Start of Auto-Louver Pressing Only for Air Panel Auto-Louver Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Indoor < 50 Switch Unit Discharge Indoor Fan Motor MIF : OFF Temp. Heat >...
Page 532
Heating Small Temperature Difference Heating Operation Time between Outdoor Temperature 40 Minutes or Above and Evaporating Temperature (Te) at Heat Exchanger Defrosting Stop Heating Non-stop Heating :OFF RVR1 : ON RVR1 RVR2 : OFF RVR2 Outdoor FAN MOF1 : OFF when defrosting 1 Minute Later Compressor Operating High Frequency...
Page 533
Heating Operation Discharge < 65 Temp. of Indoor Unit > 65 Thermo-OFF Is it continuous more than 3 min.? > 60 Discharge Temp. of Indoor Unit < 60 Is setting temp. lower than inlet air temp. of Indoor Unit? Thermo-ON Thermo ON/OFF Control of Indoor Unit...
1.12.4. Component Data Outdoor Heat Exchanger, Fan and Fan Motor Model AVWT-76* AVWT-96* AVAWT-114* AVWT-136* Heat exchanger type Multi-way cross-flow finned tube type Material Copper Tube Outside diameter Rows Heat Exchanger Aluminum Material Pitch Quantity Max. operating pressure 4.15 Max. frontal area 2.43 2.43 3.26...
Page 535
Parameters of Compressor Compressor Model ANB52FZFMT ANB66FZCMT ANB78FZCMT 4.15 High Side Design Pressure 2.21 Low Side Three-phase sync motor Model Start-up mode Compressor Motor Polarities Insulation grade FVC68D Brand Refrigerator oil Quantity volume Model Compressor Model Compressor Quantity AVWT-76* ANB66FZCMT AVWT-96* ANB78FZCMT AVWT-114*...
1.12.5 Safety and Control Device Setting Compressor Protection ● The compressor is protected by the following devices and their combinations. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Oil Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is stopped.
1. Structure 1.1 Outdoor Unit & Refrigeration Cycle Regarding structure drawings and refrigeration cycle diagram, please refer to 1.7 and 1.12.1 in DESIGN chapter. 1.2 Necessary Tools and Instrument List for Installation Check the design pressure for this product is 4.15MPa. To avoid accidental mixing of the different refrigerant or different refrigerant oil, the sizes of the charging connections have been changed.
Page 541
■: only for Refrigerant R410A (No Interchangeability with R22) ○ : Interchangeable current R22 ● : only for Refrigerant R407C (No Interchangeability with R22) X : Prohibited Interchangeability with Reason of Non-Interchangeability Measuring Instrument and Tool and Attention (★: Strictly Required) R407C R410A Pipe Cutter...
2. Transportation and Handling 2.1 Transportation Transport the product as close to the installation location as practical before unpacking. When using a crane, hang the unit according to the description of the label attached to the outdoor unit. DANGER Do not hang the unit by the ropes at the wooden pallet. Rope Position CORRECT INCORRECT...
2.2 Hanging Method When hanging the unit, ensure a balance of the unit, check to ensure safety and lift up smoothly. (1) Do not remove any packing materials. (2) Hang the unit under packing condition with two (2) wire ropes, as shown in below. Wire Angle of wire rope is more than 60°...
3. Outdoor Unit Installation 3.1 Service Space Make the service space when outdoor unit is installed as follows. In case of no walls in front of and at the rear of the unit, (Unit: mm) the space of 500mm to the front side and 300mm to the rear side is required.
Page 545
3) Walls in 4 Directions ● Single Installation ● Multiple / Serial Installation Installation in the Same Direction Min. 300+h1/2 Min. 200 Min. 200 Front Min. 900 No limit to side wall height Min. 800 Min. 800 Front Front Open Open Min.
3.2 Factory-Supplied Accessories Check to ensure that the following accessories are packed with the outdoor unit. Table 3.1 Factory-Supplied Accessories Accessory 114~136 High/Low Pressure Gas Pipe φ22.2→φ15.88 φ22.2→φ19.05 φ25.4→φ22.2 Accessory Pressure Pipe Pipe φ22.2→φ19.05 Liquid Pipe φ15.88→φ12.7 Screw (Spare) Installation Manual NOTE: If any of these accessories are not packed with the unit, please contact your contractor.
3.4 Foundation ●Concrete Foundations (1) The height of the foundation should be 150mm higher than the ground level. (2) Install a drainage around foundation for smooth draining. (mm) Motar Hole Φ100×Depth 150 Drainage Width 100×Depth 20 Drainage Vibration Proof Mat *Do not provide concrete foundation as shown below.
(5) When installing the outdoor unit, fix the unit by anchor bolts (field-supplied). Unit: mm Model: 76 ~136 Unit: mm Model: 114 1074 4-20x15 4-20x15 Hole of Anchor Bolt Hole of Anchor Bolt Model: 154~170 Unit: mm Unit: mm Model: 190~212 1464 1214 4-20x15...
Page 549
(2) Do not install the unit over the walkways. Condensation water may fall on people. In case of installing the unit in such a place, provide the additional drain pan. (3) When drain piping is necessary for the outdoor unit, use the drain boss set (Optional, DC-01Q). Do not use drain boss and drain pan kit in the cold area.
4. Refrigerant Piping Work DANGER ● Use refrigerant R410A in the refrigeration cycle. Do not charge oxygen, acetylene or other flammable and poisonous gases into the refrigeration cycle when performing a leakage test or an air-tight test. These types of gases are extremely dangerous and can cause an explosion.
Piping Thickness and Material ● Use the pipes as below. (mm) R410A Diameter Thickness Material O material Φ6.35 Φ9.53 O material Φ12.7 O material Φ15.88 O material 1/2H material Φ19.05 1/2H material Φ22.2 Φ25.4 1/2H material Φ28.6 1/2H material 1/2H material Φ31.75 Φ38.1 1.35...
4.3 Caution about Outdoor Unit Installation Outdoor Unit Alignment Taking four-module combination of outdoor unit for example. Align the outdoor unit from large capacity as A>B>C>D, and outdoor Unit "A" should be located at the indoor unit side. Outdoor Unit Capacity: A≥B≥C≥D Outdoor Unit Capacity: A≥B≥C≥D Outdoor Outdoor...
Page 553
(4) Place the outdoor unit pipe horizontally or with down gradient towards indoor unit side, or refrigerant oil may accumulate in the pipe. Indoor Unit Side Indoor Unit Side Refrigerant oil accumulates in the pipe (5) For servicing, in case that the pipe is placed frontward of the outdoor unit, secure min. 500mm between the outdoor unit and the Manifold Pipe.
4.4 Piping Connection Perform the piping connection work for each outdoor unit. NOTE: Ensure that the refrigerant pipe should be connected to the same refrigeration cycle unit. Prepare the refrigerant pipe in the field for the piping work. ● Piping Direction ●...
4.4.1 Stop Valve <Gas Valve> (1) Make sure that the all the stop valves are closed completely; (2) Connect the charging hose to the service port and release gas from the gas pipe; (3) Cut the end of the closing pipe (Φ6.35) and check that no gas exists inside the gas pipe; (4) Remove the stop valve cover;...
Page 556
4.4.2 Piping Connection (1) Make sure that the stop valves are closed completely. (2) Protect the compressor and sound-proof cover with metal plate when brazing the gas pipe as shown in Fig. 4.1. Pay attention to the flame from the burner not to burn the stop valve body. (3) Connect the indoor unit and the outdoor unit with refrigerant piping.
5. Electrical Wiring WARNING ●Turn OFF the main power switch to the indoor unit and the outdoor unit and wait for more than 3 minutes before electrical wiring work or a periodical check is performed. ●Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or a periodical check is performed.
5.2 Electrical Data WARNING The ELB (earth leakage breaker), FUSE and S (main switch) must be installed to the each power source of outdoor unit. If not, it may cause an electric shock or fire. NOTE: Supply the power source of outdoor units and indoor units respectively. (1) Power Source Wiring Supply the power sources to the each outdoor unit respectively.
CAUTION Install a multi-pole main switch with a space of 3.5mm or more between each phase. NOTE: When the power supply wiring is longer, select the minimum wiring size of which the voltage drop is within 2%. Power supply voltage should be satisfied with the followings: Supply Voltage: Rated Voltage within +10% Starting Voltage: Rated Voltage within -15% Operating Voltage: Rated Voltage within +10%...
Page 561
NOTE: 1. Do not lead the power supply wiring and transmission wiring through the same conduit tube. Moreover, keep at least 5cm between the power supply wiring and transmission wiring 2. Cut cross line at rubber bush and securely attach it to the knock-out hole for cable protecting. 3.
Page 562
< Heat Pump System & Heat Recovery System Without Switch Box > Outdoor Unit A (Main) Outdoor Unit B (Sub) L1 L2 L3 N 1 2 3 4 L1 L2 L3 N 1 2 3 4 Earth Earth Main Switch Fuse Main Switch 380-415V...
For Multi Branch SW BOX (Cooling Only (Heating Only Indoor Unit) Water Module) Heat Recovery Indoor Units Connected to the same branch NOTE: • When multiple indoor units are connected to the same single SW BOX, they are controlled with the same operation mode. •...
Page 564
● Setting for Transmitting It is required to set the outdoor unit Nos., refrigeration cycle Nos. and end terminal resistance for this Hi- NET system. ● Setting of Outdoor Unit No. In case of the combination of base unit, set DSW6 as shown below. Combination of Base Unit Base Unit Outdoor Unit A...
Page 565
● Function Setting External Input/Output and Function Setting Arrangement of Dip Switch Setting Press PSW1 once. Start of Setting Menu Mode Turn ON DSW4-No.4. Press PSW1 for 3 seconds or more. SEG2 SEG1 “Menu Mode” will be indicated. For more details, Check Mode refer to “Checking of PSW2...
Additional Refrigerant Charge 6.1 Air-Tight Test Check to ensure that the stop valves are closed completely before air-tight test. <Tightening Check of Stop Valves> After connecting the pipe, remove the cap of stop valve for liquid. Do not connect the low-pressure pipe, high/low pressure pipe and relev nt stop valve at first. Seal the low- pressure pipe and high/low pressure pipe with sealing cap prepared on the field.
< Heat Pump System > Outdoor Unit Nitrogen Tank (for Nitrogen Blow during Brazing and Air Tight Test) Stop Valve (Liquid Line) Manifold Stop Valve Gauge (High/Low Pressure Gas Line) Stop Valve Siphonic Refrigerant Cylinder (Low Pressure Gas Line) (R410A) Vacuum Pump Weigher Seal the gas line with sealing...
CAUTION Stop Valve Insulate the refrigerant pipes as shown in ● Fig.6.2. After connecting the refrigerant piping, seal the refrigerant pipes by using the field- supplied insulation material. Insulate the unions and flare nuts at the piping connections completely. Insulate the liquid piping and gas Insulation piping completely to avoid decreasing of (Field-Supplied)
Page 569
● Special Attention Regarding Refrigerant Gas Leakage Pay attention to the critical gas concentration to avoid accidental refrigerant gas leakage beforeinstalling air conditioning systems. Totally Charged Refrigerant Quantity in System ≤ Critical Concentration (kg/m Room Space for each Indoor Unit (m ↑...
7. Test Run Test run should be performed according to the Item 7.2. WARNING ● Do not operate the system until all the check points have been cleared. As for the test run of indoor unit and water module, check “Installation & Maintenance Manual” attached to the indoor unit and water module.
CAUTION TICE Confirm that field-supplied electrical components (main switch fuse, fuse-free breaker, earth leakage breakers, wires, conduit connectors and wire terminals) have been properly selected according to the nominal electrical data and ensure that the components comply with national and local codes. Use shielded wires (>0.75mm ) for field wiring to protect electrically noise obstacle.
Need help?
Do you have a question about the AVWT-76FKFSHA and is the answer not in the manual?
Questions and answers