GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER Condensing Unit Service Manual (T/R40a/60Hz) GREE ELECTRIC APPLIANCES INC. OF ZHUHAI
CONTENTS PRODUCT... 2 MODELS LIST... 2 2 NOMENCLATURE... 3 3 FUNCTION... 4 4 PRODUCT DATA... 5 4. Product Data at Rated Condition... 5 4.2 Operation Range... 7 4.3 Electrical Data... 7 5 PIPING DIAGRAM... 8 5. Cooling Only... 8 5.2 Heat Pump... 8 CONTROLLER... 0 OPERATION FLOWCHART... 0. Cooling/Dry Operation... 0.2 Heating Operation... 2 MAIN LOGIC... 2 2. Cooling Mode... 2 2.2 Heating Mode... 4 2.3 Defrosting... 5 INSTALLATION... 9 DIMENSION DATA... 9 2 INSTALLATION CLEARANCE DATA... 20 3 UNITS INSTALLATION... 20 3. Installation Positions of Condensing Units... 20 3.2 Matters need Attention... 20 4 REFRIGERATION PIPING WORK... 2 4. Specification of Connection Pipe... 2 4.2 Installation Procedure... 22 4.3 Matters of Attention... 24 5 ELECTRIC WIRING WORK... 25 5. Specification of Power Cord & Air Switch... 25 5.2 Wiring Diagram... 26 5.3 Wiring Principle... 27 5.4 Electric Wiring Design... 28... 30 FLOW CHART OF TROUBLESHOOTING... 3. High Pressure Protection... 3.2 Low Pressure Protection... 33.3 Discharge Protection... 35.4 Overcurrent Protection... 36.5 Temperature Sensor Protection... 39 2
2 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PART... 40 2. Electrical Parts Box... 40 2.2 Fan and Fan Motor... 4 2.3Compressor... 42 2.4The 4-way valve... 44 2.5 Thermal expansion valve... 47 3 EXPLODED VIEWS AND PART LIST... 48 3
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
PRODUCT PRODUCT MODELS LIST Model Capacity Cooling Heating (Ton) (Ton) Ref. Power Supply Appearance HW408Na-D.5 - HW4024Na-D 2.0 - HW4030Na-D 2.5 - HW4036Na-D 3.0 - HW4042Na-D 3.5 - HW4048Na-D 4.0 - HW4060Na-D 4.83 - HWR408Na-D.5.5 R40a 208~230V Ph 60Hz HWR4024Na-D 2.0.83 HWR4030Na-D 2.5 2.38 HWR4036Na-D 3.0 2.75 HWR4042Na-D 3.5 3.7 HWR4048Na-D 3.92 3.5 HWR4060Na-D 4.83 4.42 Note:Ton =2000Btu/h = 3.57kW 2
PRODUCT 2 NOMENCLATURE HW R 40 36 Na - D 2 3 4 5 6 NO. Description Options Unit Series Type HW:Split Series 2 Unit Type None:Cooling Only Condensing Unit R:Heat Pump Condensing Unit 3 SEER None: SEER<3 3=30 SEER 4=40 SEER 5=50 SEER 4 Nominal Cooling Capacity 8=8000Btu/h 24=24000 Btu/h 30=30000 Btu/h 36=36000 Btu/h 42=42000 Btu/h 48=48000 Btu/h 60=60000 Btu/h 5 The Type Of Refrigerant None:R22 Na:R40A 6 Power Supply D:Ph,208/230V,60HZ K:Ph,220/240V,60HZ M:3Ph,380/45V,50HZ F:3Ph,208/230V,60HZ 3
PRODUCT 3 FUNCTION Function Force defrosting High pressure protection Low pressure protection The failure sensor Description The system will put into defrosting when we press the force defrosting switch. Then the 4-way valve will lose electric and the outdoor fan stop and the assistant electric-heater get electric. The defrosting starts running. The compressor will stop and the outdoor fan and the 4-way valve assist the state when the system examines the high pressure protect for 3 seconds. Whatever the system keeps running or waiting. The 4-way valve will assist the state and the compressor and the outdoor-fan stop running if the system examines the low pressure switch breaking. The system will stop all overloads besides the 4-way valve at Cooling Mode and stop all overloads at Heating Mode when the sensor failure. The system will stop defrosting firstly and then shut off the system when the failure sensor for defrosting. 4
PRODUCT 4 PRODUCT DATA 4. Product Data at Rated Condition Model HW408Na-D HW4024Na-D HW4030Na-D HW4036Na-D HW4042Na-D Cooling Capacity Nominal Capacity Cooling/Heating (Btu/h) 8000/- 24000/- 30000/- 36000/- 42000/- Sound Pressure Level db(a) 56 57 62 62 63 Compressor RLA 6.9 9.7 2.4 7 2.5 LRA 39 48 70 96.7 05 Condenser Fan Motor Horsepower (RPM) 790 790 820 820 820 FLA.2.2.3.3.3 Refrigeration System Refrigerant Line Size Liquid Line Size (Inch) 3/8" 3/8" 3/8" 3/8" 3/8" Suction Line Size (Inch) 5/8" 5/8" 3/4" 3/4" 3/4" Valve Connection Type sweat sweat sweat sweat sweat Refrigerant Charge (oz) 77 86 85 85 08 Shipped with Orifice Size (mm).37.524.778.85 2.007 Electrical Data Power Supply (V-HZ-Ph) 208/230-60- 208/230-60- 208/230-60- 208/230-60- 208/230-60- Min. Circuit Ampacity (A) 5.7 5. 2.7 24.3 Max. Overcurrent Protection (A) 5 20 25 35 40 Min/Max Voltage (V) 87/253 87/253 87/253 87/253 87/253 Electrical Conduit Size (Inch) 7/8or-/8 7/8or-/8 7/8or-/8 7/8or-/8 7/8or-/8 Dimension Outline Dimension (L/W/H)(mm) 60 60 622 60 60 622 70 70 737 70 70 737 70 70 737 Package Dimension (L/W/H)(mm) 648 648 660 648 648 660 770 770 740 770 770 740 770 770 740 Weight Net Weight (lbs) 49 53 65 76 80 Gross Weight (lbs) 53 57 70 8 85 5
PRODUCT Model HW4048Na-D HW4060Na-D HWR408Na-D HWR4024Na-D HWR4030Na-D Cooling Capacity Nominal Capacity Cooling/Heating (Btu/h) 48000/- 58000/- 8000/8000 24000/22000 30000/28600 Sound Pressure Level db(a) 64 66 57 62 62 Compressor RLA 2 25 0 5 5.7 LRA 5 50 48 58.3 73 Condenser Fan Motor Horsepower (RPM) 890 080 790 790 820 FLA.7 2..2.2.3 Refrigeration System Refrigerant Line Size Liquid Line Size (Inch) /2" /2" 3/8" 3/8" 3/8" Suction Line Size (Inch) -/8" -/8" 5/8" 5/8" 3/4" Valve Connection Type sweat sweat sweat sweat sweat Refrigerant Charge (oz) 27 38 20 20 59 Shipped with Orifice Size (mm) 2.54 2.3.37.495.803 Electrical Data Power Supply (V-HZ-Ph) 208/230-60- 208/230-60- 208/230-60- 208/230-60- 208/230-60- Min. Circuit Ampacity (A) 27.2 29.3 3.7 5.3 20 Max.Overcurrent Protection (A) 45 50 20 25 35 Min/Max Voltage (V) 87/253 87/253 87/253 87/253 87/253 Electrical Conduit Size (Inch) 7/8or-/8 7/8or-/8 7/8or-/8 7/8or-/8 7/8or-/8 Dimension Outline Dimension (L/W/H)(mm) 70 70 85 750 750 85 60 60 622 60 60 622 70 70 78 Package Dimension (L/W/H)(mm) 770 770 870 770 770 990 648 648 634 648 648 634 770 770 740 Weight Net Weight (lbs) 88 00 63 64 80 Gross Weight (lbs) 93 07 67 68 86 NOTE: Tested and rated in accordance with ARI20/240-2006. 6
PRODUCT 4.2 Operation Range Mode Range of Outdoor Temperature ( ) Cooling 9.4~46. Heating -8.3~23.9 4.3 Electrical Data Model HW408Na-D Compressor Max. Fuse Min. Power Fan Motors Breaker Disconnect Qty. RLA LRA Supply Size Size V/Ph/Hz - Each Each FLA Each Amperes Amperes 6.2 38.2 5 5 HW4024Na-D 9.7 48.2 20.7 HW4030Na-D 2.4 70.3 25 5. HW4036Na-D 7 96.7.3 35 2.7 HW4042Na-D 2.5 05.3 40 24.3 HW4048Na-D 2 5.7 45 27.2 HW4060Na-D HWR408Na-D 208/230V Ph 60Hz 25 0 50 48 2..2 50 20 29.3 3.7 HWR4024Na-D 5 58.3.2 25 5.3 HWR4030Na-D 5.7 73.3 35 20 HWR4036Na-D 5.7 77.3 40 23.7 HWR4042Na-D 20 2.3 45 26.3 HWR4048Na-D 24.3 7.7 50 28.5 HWR4060Na-D 29.3 34 2. 50 33.4 Notes: RLA:Rated load amperes LRA:Locked rotor amperes FLA:Full load current 7
PRODUCT 5 PIPING DIAGRAM 5. Cooling Only The direction of Cooling Piston Filter Heat Exchanger With Axial Flow Fan Heat Exchanger With Centrifugal Fan Comp. Vapour Liquid Separator Indoor Outdoor 5.2 Heat Pump The direction of Cooling The direction of Heating Check Valve Indoor Outdoor 8
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER CONTROL 9
CONTROL CONTROLLER OPERATION FLOWCHART. Cooling/Dry Operation 0
CONTROL.2 Heating Operation
CONTROL 2 MAIN LOGIC 2. Cooling Mode The temperature of condensing unit is set at the wired controller equipped by users When the defrosting board of the outdoor unit detects the ON signal from wired controller, it will enter cooling ON sub mode, and compressor, outdoor fan and 4-way valve will start running synchronously. When defrosting board detects the Stop signal from wired controller, it enters cooling Stop sub mode and the compressor and outdoor fan stop synchronously. When defrosting board detects the OFF signal from wired controller, it enters the cooling OFF sub mode and compressor, outdoor fan and 4-way valve stop synchronously. Cooling ON Sub Mode Flowchart: ] 2
CONTROL Cooling Stop Sub Mode Flowchart: 3
CONTROL Cooling OFF Sub Mode Flowchart: 2.2 Heating Mode The temperature of condensing unit is set at the wired controller equipped by users When the defrosting board detects the heating ON signal from wired controller, it will enter heating ON sub mode. Compressor start, outdoor fan start and 4-way valve stops synchronously. When defrosting board detects the heating Stop signal from wired controller, it enters heating Stop sub mode and the compressor and outdoor fan stop synchronously. When defrosting board detects the heating OFF signal from wired controller, it enters the heating OFF sub mode and compressor, outdoor fan stop synchronously. Heating ON Sub Mode Flowchart: 4
CONTROL Heating Stop Sub Mode Flowchart: Heating OFF Sub Mode Flowchart: 2.3 Defrosting Inside Setting Parameter: Accumulated Running Time of Compressor: t Temp. of defrosting enter: T Temp of defrosting exit: T2 Code 000 00 00 0 t 30 44 60 90 5
CONTROL T 0-2 0 0 T2 20 20 20 20 In heating mode, when compressor has been accumulatively running for t minutes, once defrosting board detects that the temp of temp. sensor for outdoor defrosting is less than or equal to T,or press the forced defrosting button, the system will enter defrosting. At that time, energizations of 4-way valve and indoor auxiliary electric heater as well as the stop of outdoor fan will be performed synchronously. Defrosting Sub Mode Flowchart: When defrosting has been performed for 5min or T condensing T2 is detected for continuous second, the defrosting end sub mode will be entered. In the mode, deenergization of 4-way valve, operation of outdoor fun and the running of indoor auxiliary electric heater according to the setting of wired controller will be performed synchronously. Defrosting End Sub Mode Flowchart: 6
CONTROL 7
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION 8
INSTALLATION INSTALLATION DIMENSION DATA Unit:mm Model A B C HW408Na-D 622 60 60 HW4024Na-D 622 60 60 HW4030Na-D 737 70 70 HW4036Na-D 737 70 70 HW4042Na-D 737 70 70 HW4048Na-D 85 70 70 HW4060Na-D 85 750 750 HWR408Na-D 622 60 60 HWR4024Na-D 622 60 60 HWR4030Na-D 78 70 70 HWR4036Na-D 78 70 70 HWR4042Na-D 78 70 70 HWR4048Na-D 832 70 70 HWR4060Na-D 85 750 750 9
INSTALLATION 2 INSTALLATION CLEARANCE DATA Floor mm Floor 3 UNITS INSTALLATION 3. Installation Positions of Condensing Units Outdoor Unit must be fixed on stable and solid surface of floor. Don t install Outdoor Unit under window or between buildings, and prevent the operation noise from room. There should be no obstructions at both air inlet and outlet of indoor and outdoor units for maintaining well air ventilation. When installing indoor unit, make sure that the hanging parts at top are strong enough to stand the weight of unit. 3.2 Matters need Attention Before installation, make sure that the power supply comply with in nameplate and check the security of the power supply. Do not use or place combustible and explosive gas or liquid near the air conditioner. Do not attempt to install Air Conditioner by yourself to guarantee the Air Conditioner can be permanent use. In the event of malfunction(burning smell, etc.),stop operation immediately and turn off the power switch. Do not insert fingers or objects into the outlet port or inlet grillers. Do not check or repair the Air Conditioner when it is running. Do not sprinkle water on the Air Conditioner or operate it with wet hands. Do not climb or place objects on the air conditioner. 20
INSTALLATION 4 REFRIGERATION PIPING WORK 4. Specification of Connection Pipe Model External Diameter Gas Pipe Liquid Pipe Maximum Length of Connection Pipe Maximum Difference in Height between Outdoor and Indoor Unit Maximum Charge Length of Connection Pipe Additional Charge of Refrigerant (Inch) (Inch) (m) (m) (m) (g/m) HW408Na-D 3/8" 5/8" 30 5 6 40 HW4024Na-D 3/8" 5/8" 30 5 6 40 HW4030Na-D 3/8" 3/4" 30 5 6 50 HW4036Na-D 3/8" 3/4" 30 5 6 50 HW4042Na-D 3/8" 3/4" 30 5 6 50 HW4048Na-D /2" -/8" 30 5 6 60 HW4060Na-D /2" -/8" 30 5 6 60 HWR408Na-D 3/8" 5/8" 30 5 6 40 HWR4024Na-D 3/8" 5/8" 30 5 6 40 HWR4030Na-D 3/8" 3/4" 30 5 6 50 HWR4036Na-D 3/8" 3/4" 30 5 6 50 HWR4042Na-D 3/8" 3/4" 30 5 6 50 HWR4048Na-D /2" -/8" 30 5 6 60 HWR4060Na-D /2" -/8" 30 5 6 60 2
INSTALLATION 4.2 Installation Procedure Connection of Pipeline. Align the flared end of the copper pipe with the center of the thread joint. Manually tighten the flared end nut. 2. Use torque spanner to tighten the flared end nut until the spanner clatters. The following table describes the torques for tightening nuts of different pipe diameters. Pipe Diameter Tightening Torque (Inch) (N m) /4 5-30 3/8 35-40 5/8 60-65 /2 45-50 3/4 70-75 7/8 80-85 3. The bending angle of the fitting pipe shall not be too small, and otherwise the pipe may break. Please use a bender when bending the fitting pipes. 4. Use sponge to wrap the connecting pipe and joint without thermal insulation, and use plastic tape to bundle the sponge. 5. Remove the bonnets of the liquid valve and the gas valve. 6. Use an inner hexagon spanner to turn the spool of the liquid valve for /4 circle. At the same time, use a screwdriver to lift the spool. Then there is discharge of gas. 7. Refrigerant gas shall appear after the gas is discharged for 5 seconds. Now close one way valve immediately and tighten the bonnet. 8. Fully open the spools of the liquid valve and the gas valve. 9. Tighten the valve cover. Then use soap water or leakage detector to check if there is leakage at the position where the indoor unit or the outdoor unit is connected with pipelines. 0. If conditions allow, use a vacuum pump to extract air from the valve. 22
INSTALLATION Caution:. When connecting the indoor unit with the connecting pipe, do not pull big and small joints of the indoor unit forcefully, so as to prevent the capillary of the indoor unit and other pipes from breaking and leaking. 2. The connecting pipe shall be supported by proper bracket. The weight of the pipe shall not be withstood by the unit. Caution: When brazing the outdoor unit with the connecting pipe,please make sure that the valve are wrapped with wet cloth for cooling. Caution: Please note that heat exchanger inside is pressurized for leak test. Installation of Protective Layer of Connecting Pipe. During the installation, we should carry out the heat preservation for two pieces of water drainage pipe. 2. To avoid generation of condensate on the connecting pipe and avoid leakage, the big pipe and the small pipe of the connecting pipe must be covered by thermal insulation materials, be bundled by adhesive tape, and be isolated from air. 3. The joint connecting to the indoor unit must be wrapped by thermal insulation material. There shall be no gap between the connecting pipe joint and the wall of the indoor unit. Refer to Figure 28. 4. Due to there is protective pressure refrigerant in the indoor unit, when loosening the nuts on the installing site, please pay more attention on the pressure, in order to avoid the injury! 23
INSTALLATION Caution: After the pipes are wrapped by protective materials, never bend the pipes to very small angle, and otherwise the pipes may crack or break. Use adhesive tape to wrap the pipes:. Use adhesive tape to bundle the connecting pipe and the cables together. To prevent condensate from overflowing out from the drainage pipe, separate the drainage pipe from the connecting pipe and the cables. 2. Use thermal insulation tape to wrap the pipes from the bottom of the outdoor unit to the upper end of the pipe where the pipe enters the wall. When wrapping thermal insulation tape, the later circle of tape must cover half of the front circle of tape. 3. Wrapped pipe must be fixed to wall with pipe clamps. Caution:. Do not wrap the protective tape too tight, and otherwise the efficiency of thermal insulation may be decreased. Ensure that the condensate drainage flexible tube is separate from the bundled pipes. 2. After the protective work is completed and the pipes are wrapped, use seal material to block the hole in the wall, so as to prevent rain and wind from the room. 4.3 Matters of Attention Refrigerant charging is for 6m-long pipe. If the pipe is longer than 6m, please refer to the following table and to supplement refrigerant additionally: Outer diameter of liquid pipe (mm) Additional supplement refrigerant for increasing every.5m long pipe(g) 9.5 87 2.7 5 24
INSTALLATION 5 ELECTRIC WIRING WORK 5. Specification of Power Cord & Air Switch Model Power Supply Minimum Sectional Area of Earth Wire (mm 2 ) Minimum Sectional Area of Power Cord (mm 2 ) HW408Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4024Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4030Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4036Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4042Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4048Na-D 208/230V-Ph-60Hz 5.26 5.26 HW4060Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR408Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4024Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4030Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4036Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4042Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4048Na-D 208/230V-Ph-60Hz 5.26 5.26 HWR4060Na-D 208/230V-Ph-60Hz 5.26 5.26 Note: Seasonal Energy Efficiency Ratio;Tested per ARI 20/240@80 F/67 F/95 F. 2 Energy Efficiency Ratio@80 F/67 F/95 F. 3 TVA Rating:Btu/h@75 F/63 F-95 F. 4 HSPF=Heating Seasonal Performance Factor. 25
INSTALLATION 5.2 Wiring Diagram Model:HNF308-D/HNF3024-D/HNF3030-D/HNF3036-D/HNF3042-D/HNF3048-D 26
INSTALLATION Model:HNF3060-D 5.3 Wiring Principle. The signal line of the wire controller must be separated from the power line and the connecting line between the indoor unit and the outdoor unit. 2. In case the unit is installed in a place which is vulnerable for electromagnetic interference, it is better to use shielded cable or double-twisted cable as the signal line of the wire controller. 27
INSTALLATION 5.4 Electric Wiring Design Model: HW408Na-D/HW4024Na-D/HW4030Na-D/HW4036Na-D/HW4042Na-D/HW4048Na-D/ HW4060Na-D 28
INSTALLATION Model: HWR408Na-D/HWR4024Na-D/HWR4030Na-D/HWR4036Na-D/HWR4042Na-D/HWR4048Na-D HWR4060Na-D 29
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER 30
FLOW CHART OF TROUBLESHOOTING. High Pressure Protection 3
32
.2 Low Pressure Protection 33
34
.3 Discharge Protection 35
.4 Overcurrent Protection 36
37
38
.5 Temperature Sensor Protection 39
2 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PART 2. Electrical Parts Box Disassembly and Assembly of Electrical Parts Box Remark : Make sure that there isn t any refrigerant in pipe system and the power supply is cut off before removal of the compressor.._ Process Pictorial View Handling Description.Dismantle retaining Unscrew the retaining screw of eletric box cover screw of electric box with screwdriver. 2.Remove the cover plate of electric box Remove the cover plate of electric box 40
2.2 Fan and Fan Motor Disassembly and Assembly of Fan and Fan Motor Remark : Make sure that there isn t any refrigerant in pipe system and the power supply is cut off before removal of the compressor.._ Process Pictorial View Handling Description.Dismantle power cord of fan. Dismantle cord of fan power Note: Mark the power cord with the code of relevant terminal to avoid mixture when recovering wiring. 2. Dismantle the top cover.. Unscrew each screw in the top cover. 2. Unplug terminals of connected electric components 3. Remove the whole top cover sub-assy and place top cover downwards 3. Dismantle fan blade and motor. Dismantle fixed bolts of fan blade to remove it. 2. Unscrew the bolts which connect the motor and top cover to remove the motor. 4
2.3Compressor Disassembly and Assembly of Compressor Remark : Make sure that there isn t any refrigerant in pipe system and the power supply is cut off before removal of the compressor.._ Process Pictorial View Handling Description. Dismantle connecting wire of power supply for compressor. Unscrew the retaining screw of power cord with screwdriver. 2. Unplug the power cord. 2.Dismantle the. Replace the old process pipe with discharge pipe and the suction pipe of compressor. a new one. 2. Conduct nitrogen-fill protection on process pipe and the pressure of nitrogen is 0.5±0.kgf/c m2 ( relative pressure) 3. Unsolder the suction inlet and the discharge outlet with blowtorch. 4. Heating with caution in case the surroundings get burning due to high temperature. 3. Remove compressor.unscrew retaining screws of the compressor with box spanner. 2. Lift compressor out of the unit. 4.Fix the new compressor on base plate. Lift new compressor into the unit and fix it on base plate with box spanner 2. Conduct nitrogen-fill protection on process pipe and the pressure of nitrogen is 0.5±0.kgf/c m2 ( relative pressure) 42
Weld the suction and the discharge pipes. 3. Heating with caution in case the surroundings get burning due to high temperature. 6. Creation of vacuum and charge refrigerants.. Vacuumize from process pipe. 2. Charge refrigerants into process pipe and the volume shall comply with nameplate. 3. Seal process pipe with sealing clamp. 43
2.4The 4-way valve Disassembly and Assembly of Compressor Remark : Make sure that there isn t any refrigerant in pipe system and the power supply is cut off before removal of the compressor. Process Pictorial View Handling Description.Dismantle electromagnetic valve..dismantle electromagnetic valve with spanner. 2.Remove electromagnetic valve from 4-way valve. 2. Dismantle 4-way valve. Disconnect the connecting pipe of 4-way valve.heating connecting pipe of 4 vents of 4-way valve by gas welding and then unplug 4-way valve. 2.Nitrogen-fill protection shall be conducted on welding joint and the pressure of nitrogen 0.5±0.kgf/c is m2 ( relative pressure) 3.Record the direction of 4-way valve and the position of each vent before remove 4-way valve. 44
3. Remove 4-way valve Remove old 4-way valve from pipeline.. 4. Install new 4-way valve. Welding connecting pipe and 4-way valve. Install the new 4-way valve in correct position and connect it with pipeline correctly. 2. Wrap the valve with wet cloth when welding to prevent the slide block inside the valve from burning and prevent water from piping. 3. Charge nitrogen to weld and the nitrogen pressure is 0.5±0.kgf/c m2 ( relative pressure) 5.Install electromagnetic Install electromagnetic the valve. valve in new 4-way valve. 6.Inspect the system Vacuumize and and charge charge refrigerants 45
refrigerants. after confirmation that there is no leakage of the system. 46
2.5 Thermal expansion valve Disassembly and Assembly of capillary Remark : Make sure that there isn t any refrigerant in pipe system and the power supply is cut off before removal of the thermal expansion valve. Step Pictorial View Handling Instruction.Disconnect the thermal expansion valve. Unsoldering the connection of the thermal expansion valve and pipeline. 2. nitrogen-fill protection shall be conducted on welding joint and the pressure of nitrogen is 0.5±0.kgf/c m2 ( relative pressure) 2. Remove thermal Remove the thermal expansion valve from the unit. expansion valve. 3.Install new thermal expansion valve..install new thermal expansion valve; 2. Weld the welding spot which connect the other piping. Welding the connecting pipe and expansion valve 3. Detect the leakage of the system, create vacuum and charge refrigerants again. 47
3 EXPLODED VIEWS AND PART LIST ) Model: HW408Na-D, HW4024Na-D Exploded Views 48
Parts List No. Name of part Part code Quantity Cover Plate Sub-Assy 262290 2 AxialFlow Fan 0358203 3 Fixed Board 7222 050240 4 Wire pipe 0502402 2 5 Fan Motor 57020 6 Nut 7038204 4 7 Top trademark 2690223 8 Rear Grill Sub-Assy 057220P 9 Condenser Assy 22237 0 Side trademark 2690222 Bracket 0892240P 3 0003737 2 Compressor 00202234 2 3 Side Plate 3 032250P 2 4 electrical supporting plate 0342247P 5 Side Plate 032245P 6 AC Contactor 4400283 3300007909 7 Capacitor 3300007904 2 8 Capacitor clamp 24340 9 Terminal Board 42045 20 inner cup 38206 2 Tube-exit plate 38820 22 o-gasket 7655202 2 23 Cut-off valve Sub-Assy 7332240 04652328 24 Inhalation Tube Sub-Assy 04672284 2 25 Electric Box Cover Sub-Assy 40827 092280P 26 Base Plate Sub-Assy 09228P 2 27 Side Plate 2 032246P 28 piston 07380004 073800009 2 Note: is dedicated to HW408Na-D. 2 is dedicated to HW4024Na-D. 49
2) Model: HW4030Na-D, HW4036Na-D, HW4042Na-D, HW4048Na-D Exploded Views 50
Parts List NO. Name of part Part code Quantity Cover Plate Sub-Assy 262288 2 AxialFlow Fan 03582 3 Fixed Board 7222 4 Wire pipe 52782050 5702020 23 5 Fan Motor 57020304 6 Nut 7038204 4 7 Top trademark 26902230 8 Rear Grill Sub-Assy 057222P 022238 2 9 Condenser Assy 02224 3 022240 4 0 Side trademark 26902220 089224P 23 Bracket 0892242P 4 3 00202235 2 Compressor 00202225 2 00202226 3 002022274 032247P 23 3 Side Plate 3 032253P 4 2 0342246P 23 4 electrical supporting plate 0342250P4 5 Side Plate 032249P 23 03225P4 6 AC Contactor 4400283 3300007903 7 Capacitor 3300007905 2 3300007902 3 33000079 4 02260003 8 Capacitor clamp 0243402 02437534 9 Terminal Board 42045 20 inner cup 38206 038820 23 2 Tube-exit plate 0388208 4 22 o-gasket 7655202 3 07332238 2 23 Cut-off valve Sub-Assy 07332248 3 5
0733224 4 04672286 24 Inhalation Tube Sub-Assy 04672280 23 04652326 4 25 Electric Box Cover Sub-Assy 40827 26 Base Plate Sub-Assy 27 Side Plate 2 28 piston 09229P 0208232 234 032248P 23 032252P 4 073800007 07380005 2 0738000 3 073800064 Note: is dedicated to HW4036Na-D. 2 is dedicated to HW4042Na-D. 3 is dedicated to HW4048Na-D. 4 is dedicated to HW4048Na-D. 52
3) Model: HW4060Na-D Exploded Views 53
Parts List No. Name of part Part code Quantity Bolt 7020084 2 Fan Motor 570223 3 AxialFlow Fan 035822 4 Cover Plate Assy 0262289 5 Top trademark 2690223 6 Protection grill nets 05722P 4 7 Bolt 7020084 8 Motor Assemble Bracket 032228P 9 Condenser Assy 022239 0 Side trademark 2690222 Bracket 0892242P 2 Compressor 00202236 3 Side Plate 3 032254P 4 electrical supporting plate 0342245P 5 Side Plate 032256P 6 AC Contactor 4400283 7 Capacitor 330000790 8 Capacitor clamp 02260003 9 Terminal Board 42045 20 inner cup 038206 2 Tube-exit plate 0388208 22 o-gasket 7655202 2 23 Cut-off valve Sub-Assy 07332239 24 Inhalation Tube Sub-Assy 0467228 25 Electric Box Cover Sub-Assy 040827 26 Base Plate Sub-Assy 092205P 27 Side Plate 2 032255P 28 piston 07380003 54
4) Model: HWR408Na-D, HWR4024Na-D, HWR4030Na-D, Exploded Views 55
Parts List No. Name of part Part code Quantity 0262285 Cover Plate 02622852 02622863 0358203 2 AxialFlow Fan 03582032 035823 07222 3 Fixed Board 072222 08422523 050240 4 Plastic Pipe 0502402 052782053 57020 5 Fan Motor 570202 57020203 6 Nut 7038204 4 7 Top trademark 2690223 057220 8 Protection grill nets 0572202 0572223 022208 9 Condenser Assy 02220802 0220703 0 Side trademark 2690222 Liquid-gas separator 07422202 0465233 2 Suction pipe 04652332 0465233703 0892240 3 Bracket 08922402 0892243 00202209 4 Compressor 00202202 0020223 032245 5 Side Plate 0322452 0322493 032250 6 Side Plate 3 0322502 0322473 56
0342247 7 electrical supporting plate 03422472 03422463 8 Terminal Board 420094 9 Base(Terminal Board) 0802276 20 Mainboard 3022203 2 AC Contactor 4400283 3300007908 22 Capacitor 33000079042 3300007803 23 Capacitor clamp 024340 24 inner cover 038206 25 Terminal Board 420094 26 Tube-exit plate 0342253 27 o-gasket 7655202 2 28 Electric Box Cover 04823 0742208 29 Filter Assy 30 Service valve Assy 3 Adjusting pipe 32 4-way valve Assy 33 Base Plate Sub-Assy 34 Side Plate 2 35 piston 074220802 07322003 05022425 050224252 050224383 06224 062242 062253 044224 04422392 044224403 09222 092222 02082203 032246 0322462 0322483 07380004 073800006 2 07380000 3 Note: is dedicated to HWR408Na-D. 2 is dedicated to HWR4024Na-D. 3 is dedicated to HWR4030Na-D. 57
5) Model: HWR4036Na-D, HWR4042Na-D, HWR4048Na-D, Exploded Views 58
Parts List No. Name of part Part code Quantity Cover Plate 0262286 2 AxialFlow Fan 03582 3 Fixed Board 07222 4 Plastic Pipe 05278205 5702020 5 Fan Motor 57020202 57020303 6 Nut 7038204 4 7 Top trademark 2690223 8 Protection grill nets 057222 022206 9 Condenser Assy 022202 0222093 0 Side trademark 2690222 Liquid-gas separator 2 Suction pipe 3 Bracket 4 Compressor 5 Side Plate 6 Side Plate 3 7 electrical supporting plate 074222022 074222033 046523370 046523452 046523463 089224 0892242 08922423 0020222 00202242 00202263 032249 0322492 032253 032247 0322472 0322533 0342246 03422462 03422503 59
8 Terminal Board 420094 9 Base(Terminal Board) 0802276 20 Mainboard 3022203 2 AC Contactor 4400283 3300007905 22 Capacitor 23 Capacitor clamp 33000079052 33000079063 024340 0243752 0243753 24 inner cover 038206 25 Terminal Board 420094 0342253 26 Tube-exit plate 03422532 03422543 27 o-gasket 7655202 2 28 Electric Box Cover 04823 073220 29 Filter Assy 30 Service valve Assy 3 Adjusting pipe 32 4-way valve Assy 33 Base Plate Sub-Assy 34 Side Plate 2 0732202 07422093 05022438 050224382 050224263 06225 062252 0622023 04422440 0442244022 044224303 02082200 020822002 02082203 032248 0322482 0322523 35 piston 07380000 60
07380002 0738000033 Note: is dedicated to HWR4036Na-D. 2 is dedicated to HWR4042Na-D. 3 is dedicated to HWR4048Na-D. 6
6) Model: HWR4060Na-D Exploded Views 62
Parts List No. Name of part Part code Quantity Motor Assemble Bracket 032228P 2 Fan Motor 570223 3 AxialFlow Fan 035822 4 Cover Plate 0262287P 5 Top trademark 26902230 6 Protection grill nets 05722P 7 Bolt 7020084 4 8 Bolt 7020084 8 9 Condenser Assy 222 0 Side trademark 26902220 Liquid-gas separator 7422203 2 Suction pipe 4652347 3 Bracket 0892242P 3 4 Compressor 20227 5 Side Plate 032256P 6 Side Plate 3 032254P 2 7 electrical supporting plate 0342257P 8 Terminal Board 420094 9 Base(Terminal Board) 802276 20 Mainboard 3022203 2 AC Contactor 4400283 22 Capacitor 3300007907 23 Capacitor clamp 24340 2 24 Inner cover 38206 25 Terminal Board 420094 26 Tube-exit plate 388208 27 o-gasket 7655202 2 28 Electric Box Cover 4823 29 Filter Assy 74220 30 Service valve Assy 5022424 3 Adjusting pipe 6227 32 4-way valve Assy 4422420 33 Base Plate Sub-Assy 092206P 34 Side Plate 2 032255P 35 Piston 7380006 63