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Transcript of Condensing Unit Service Manual T1/R410a/60Hz · GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR...
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER
Condensing Unit
Service Manual
(T1/R410a/60Hz)
GREE ELECTRIC APPLIANCES INC. OF ZHUHAI
2
CONTENTS
PRODUCT ....................................................................................................................................... 2 1 MODELS LIST .................................................................................................................... 2 2 NOMENCLATURE ............................................................................................................. 3 3 FUNCTION .......................................................................................................................... 4 4 PRODUCT DATA ................................................................................................................ 5
4.1 Product Data at Rated Condition ................................................................................. 5 4.2 Operation Range .......................................................................................................... 7 4.3 Electrical Data ............................................................................................................. 7
5 PIPING DIAGRAM ............................................................................................................. 8 5.1 Cooling Only ............................................................................................................... 8 5.2 Heat Pump ................................................................................................................... 8
CONTROLLER ............................................................................................................................ 10 1 OPERATION FLOWCHART .......................................................................................... 10
1.1 Cooling/Dry Operation .............................................................................................. 10 1.2 Heating Operation ..................................................................................................... 11
2 MAIN LOGIC .................................................................................................................... 12 2.1 Cooling Mode............................................................................................................ 12 2.2 Heating Mode ............................................................................................................ 14 2.3 Defrosting .................................................................................................................. 15
INSTALLATION ........................................................................................................................... 19 1 DIMENSION DATA .......................................................................................................... 19 2 INSTALLATION CLEARANCE DATA .......................................................................... 20 3 UNITS INSTALLATION .................................................................................................. 20
3.1 Installation Positions of Condensing Units ............................................................... 20 3.2 Matters need Attention .............................................................................................. 20
4 REFRIGERATION PIPING WORK ............................................................................... 21 4.1 Specification of Connection Pipe .............................................................................. 21 4.2 Installation Procedure ................................................................................................ 22 4.3 Matters of Attention .................................................................................................. 24
5 ELECTRIC WIRING WORK .......................................................................................... 25 5.1 Specification of Power Cord & Air Switch ............................................................... 25 5.2 Wiring Diagram ......................................................................................................... 26 5.3 Wiring Principle ........................................................................................................ 27 5.4 Electric Wiring Design .............................................................................................. 28
MAINTENANCE .......................................................................................................................... 30 1 FLOW CHART OF TROUBLESHOOTING .................................................................. 31
1.1 High Pressure Protection ........................................................................................... 31 1.2 Low Pressure Protection............................................................................................ 33 1.3 Discharge Protection ................................................................................................. 35 1.4 Overcurrent Protection .............................................................................................. 36 1.5 Temperature Sensor Protection ................................................................................. 39
3
2 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PART .......................... 40 2.1 Electrical Parts Box ................................................................................................... 40 2.2 Fan and Fan Motor .................................................................................................... 41 2.3Compressor ................................................................................................................ 42 2.4The 4-way valve ......................................................................................................... 44 2.5 Thermal expansion valve .......................................................................................... 47
3 EXPLODED VIEWS AND PART LIST .......................................................................... 48
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER
1
PRODUCT
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
2
PRODUCT
1 MODELS LIST
Model
Capacity
Ref. Power
Supply Appearance Cooling
(Ton)
Heating
(Ton)
HW14018Na-D 1.5 -
R410a
208~230V
1Ph
60Hz
HW14024Na-D 2.0 -
HW14030Na-D 2.5 -
HW14036Na-D 3.0 -
HW14042Na-D 3.5 -
HW14048Na-D 4.0 -
HW14060Na-D 4.83 -
HWR14018Na-D 1.5 1.5
HWR14024Na-D 2.0 1.83
HWR14030Na-D 2.5 2.38
HWR14036Na-D 3.0 2.75
HWR14042Na-D 3.5 3.17
HWR14048Na-D 3.92 3.5
HWR14060Na-D 4.83 4.42
Note:1Ton =12000Btu/h = 3.517kW
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
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2 NOMENCLATURE
HW R 140 36 Na - D
1 2 3 4 5 6
NO. Description Options
1 Unit Series Type HW:Split Series
2 Unit Type None:Cooling Only Condensing Unit
R:Heat Pump Condensing Unit
3 SEER
None: SEER<13
13=130 SEER
14=140 SEER
15=150 SEER
4 Nominal Cooling Capacity
18=18000Btu/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:R410A
6 Power Supply
D:1Ph,208/230V,60HZ
K:1Ph,220/240V,60HZ
M:3Ph,380/415V,50HZ
F:3Ph,208/230V,60HZ
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
4
3 FUNCTION Function Description
Force defrosting
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.
High pressure protection
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.
Low pressure protection
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 failure sensor
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.
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
5
4 PRODUCT DATA
4.1 Product Data at Rated Condition
Model HW14018Na-D HW14024Na-D HW14030Na-D HW14036Na-D HW14042Na-D
Cooling Capacity
Nominal Capacity
Cooling/Heating (Btu/h) 18000/- 24000/- 30000/- 36000/- 42000/-
Sound Pressure Level
dB(A) 56 57 62 62 63
Compressor
RLA 6.9 9.7 12.4 17 21.5
LRA 39 48 70 96.7 105
Condenser Fan Motor
Horsepower (RPM) 790 790 820 820 820
FLA 1.2 1.2 1.3 1.3 1.3
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 85 108
Shipped with Orifice Size
(mm) 1.37 1.524 1.778 1.85 2.007
Electrical Data
Power Supply
(V-HZ-Ph) 208/230-60-1 208/230-60-1 208/230-60-1 208/230-60-1 208/230-60-1
Min. Circuit Ampacity
(A) 5 11.7 15.1 21.7 24.3
Max. Overcurrent
Protection (A) 15 20 25 35 40
Min/Max Voltage (V) 187/253 187/253 187/253 187/253 187/253
Electrical Conduit Size
(Inch) 7/8or1-1/8 7/8or1-1/8 7/8or1-1/8 7/8or1-1/8 7/8or1-1/8
Dimension
Outline Dimension
(L/W/H)(mm) 610×610×622 610×610×622 710×710×737 710×710×737 710×710×737
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 81 85
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
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Model HW14048Na-D HW14060Na-D HWR14018Na-D HWR14024Na-D HWR14030Na-D
Cooling Capacity
Nominal Capacity
Cooling/Heating (Btu/h) 48000/- 58000/- 18000/18000 24000/22000 30000/28600
Sound Pressure Level
dB(A) 64 66 57 62 62
Compressor
RLA 21 25 10 15 15.7
LRA 115 150 48 58.3 73
Condenser Fan Motor
Horsepower (RPM) 890 1080 790 790 820
FLA 1.7 2.1 1.2 1.2 1.3
Refrigeration System
Refrigerant Line Size
Liquid Line Size (Inch) 1/2" 1/2" 3/8" 3/8" 3/8"
Suction Line Size (Inch) 1-1/8" 1-1/8" 5/8" 5/8" 3/4"
Valve Connection Type sweat sweat sweat sweat sweat
Refrigerant Charge (oz) 127 138 120 120 159
Shipped with
Orifice Size (mm) 2.54 2.311 1.37 1.495 1.803
Electrical Data
Power Supply (V-HZ-Ph) 208/230-60-1 208/230-60-1 208/230-60-1 208/230-60-1 208/230-60-1
Min. Circuit Ampacity (A) 27.2 29.3 13.7 15.3 20
Max.Overcurrent
Protection (A) 45 50 20 25 35
Min/Max Voltage (V) 187/253 187/253 187/253 187/253 187/253
Electrical Conduit Size
(Inch)
7/8or1-1/8 7/8or1-1/8 7/8or1-1/8 7/8or1-1/8 7/8or1-1/8
Dimension
Outline Dimension
(L/W/H)(mm) 710×710×851 750×750×851 610×610×622 610×610×622 710×710×718
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) 88 100 63 64 80
Gross Weight (lbs) 93 107 67 68 86
NOTE:
Tested and rated in accordance with ARI210/240-2006.
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
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4.2 Operation Range
Mode Range of Outdoor Temperature℃ (℉) Cooling 19.4~46.1 Heating -8.3~23.9
4.3 Electrical Data
Model
Compressor
Fan Motors
Max. Fuse
Breaker
Size
Min.
Disconnect
Size
Power
Supply Qty. RLA LRA
V/Ph/Hz - Each Each FLA Each Amperes Amperes
HW14018Na-D
208/230V
1Ph
60Hz
1 6.2 38 1.2 15 5
HW14024Na-D 1 9.7 48 1.2 20 11.7
HW14030Na-D 1 12.4 70 1.3 25 15.1
HW14036Na-D 1 17 96.7 1.3 35 21.7
HW14042Na-D 1 21.5 105 1.3 40 24.3
HW14048Na-D 1 21 115 1.7 45 27.2
HW14060Na-D 1 25 150 2.1 50 29.3
HWR14018Na-D 1 10 48 1.2 20 13.7
HWR14024Na-D 1 15 58.3 1.2 25 15.3
HWR14030Na-D 1 15.7 73 1.3 35 20
HWR14036Na-D 1 15.7 77 1.3 40 23.7
HWR14042Na-D 1 20 112 1.3 45 26.3
HWR14048Na-D 1 24.3 117 1.7 50 28.5
HWR14060Na-D 1 29.3 134 2.1 50 33.4
Notes:
RLA:Rated load amperes
LRA:Locked rotor amperes
FLA:Full load current
DUCT TYPE SPLIT AIR CONDITIONER PRODUCT
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5 PIPING DIAGRAM
5.1 Cooling Only
Indoor Outdoor
The direction of Cooling
Vapour Liquid Separator
Comp.
Filter Piston
Heat Exchanger With Centrifugal Fan
Heat Exchanger With Axial Flow Fan
5.2 Heat Pump
Indoor Outdoor
The direction of Cooling
The direction of Heating
CheckValve
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER
9
CONTROL
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
10
CONTROLLER 1 OPERATION FLOWCHART 1.1 Cooling/Dry Operation
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
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1.2 Heating Operation
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
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2 MAIN LOGIC 2.1 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:
]
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
13
Cooling Stop Sub Mode Flowchart:
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
14
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:
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
15
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: T1 ⊙Temp of defrosting exit: T2
Code 000 001 010 011 t 30 44 60 90
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
16
T1 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 T1℃,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 15min or T condensing ≥T2℃ is detected for
continuous 1 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:
DUCT TYPE SPLIT AIR CONDITIONER CONTROL
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GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER
18
INSTALLATION
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
19
INSTALLATION 1 DIMENSION DATA
Unit:mm Model A B C
HW14018Na-D 622 610 610
HW14024Na-D 622 610 610
HW14030Na-D 737 710 710
HW14036Na-D 737 710 710
HW14042Na-D 737 710 710
HW14048Na-D 851 710 710
HW14060Na-D 851 750 750
HWR14018Na-D 622 610 610
HWR14024Na-D 622 610 610
HWR14030Na-D 718 710 710
HWR14036Na-D 718 710 710
HWR14042Na-D 718 710 710
HWR14048Na-D 832 710 710
HWR14060Na-D 851 750 750
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
20
2 INSTALLATION CLEARANCE DATA
Floor
Floor
mm
3 UNITS INSTALLATION 3.1 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.
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
21
4 REFRIGERATION PIPING WORK 4.1 Specification of Connection Pipe
Model
External Diameter Maximum Length of
Connection Pipe
Maximum Difference in Height between
Outdoor andIndoor Unit
Maximum Charge
Length of Connection Pipe
Additional Charge
of RefrigerantGas Pipe
Liquid Pipe
(Inch) (Inch) (m) (m) (m) (g/m)
HW14018Na-D 3/8" 5/8" 30 15 6 40
HW14024Na-D 3/8" 5/8" 30 15 6 40
HW14030Na-D 3/8" 3/4" 30 15 6 50
HW14036Na-D 3/8" 3/4" 30 15 6 50
HW14042Na-D 3/8" 3/4" 30 15 6 50
HW14048Na-D 1/2" 1-1/8" 30 15 6 60
HW14060Na-D 1/2" 1-1/8" 30 15 6 60
HWR14018Na-D 3/8" 5/8" 30 15 6 40
HWR14024Na-D 3/8" 5/8" 30 15 6 40
HWR14030Na-D 3/8" 3/4" 30 15 6 50
HWR14036Na-D 3/8" 3/4" 30 15 6 50
HWR14042Na-D 3/8" 3/4" 30 15 6 50
HWR14048Na-D 1/2" 1-1/8" 30 15 6 60
HWR14060Na-D 1/2" 1-1/8" 30 15 6 60
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
22
4.2 Installation Procedure
Connection of Pipeline 1. 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 (Inch)
Tightening Torque (N·m)
1/4〞 15-30 3/8〞 35-40 5/8〞 60-65 1/2〞 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 1/4 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 15 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. 10. If conditions allow, use a vacuum pump to extract air from the valve.
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
23
Caution: 1. 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 1. 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!
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
24
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: 1. 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: 1. 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 1.5m long pipe(g)
9.5 87
12.7 115
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
25
5 ELECTRIC WIRING WORK 5.1 Specification of Power Cord & Air Switch
Model Power Supply
Minimum Sectional
Area of Earth Wire
(mm2)
Minimum Sectional
Area of Power Cord
(mm2)
HW14018Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14024Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14030Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14036Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14042Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14048Na-D 208/230V-1Ph-60Hz 5.26 5.26
HW14060Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14018Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14024Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14030Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14036Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14042Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14048Na-D 208/230V-1Ph-60Hz 5.26 5.26
HWR14060Na-D 208/230V-1Ph-60Hz 5.26 5.26
Note:
① Seasonal Energy Efficiency Ratio;Tested per ARI 210/240@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.
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
26
5.2 Wiring Diagram
Model:HNF13018-D/HNF13024-D/HNF13030-D/HNF13036-D/HNF13042-D/HNF13048-D
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
27
Model:HNF13060-D
5.3 Wiring Principle
1. 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.
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
28
5.4 Electric Wiring Design
Model:
HW14018Na-D/HW14024Na-D/HW14030Na-D/HW14036Na-D/HW14042Na-D/HW14048Na-D/
HW14060Na-D
DUCT TYPE SPLIT AIR CONDITIONER INSTALLATION
29
Model:
HWR14018Na-D/HWR14024Na-D/HWR14030Na-D/HWR14036Na-D/HWR14042Na-D/HWR14048Na-D
HWR14060Na-D
GREE COMMERCIAL AIR CONDITION DUCT TYPE SPLIT AIR CONDITIONER
30
MAINTENANCE
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
31
MAINTENANCE
1 FLOW CHART OF TROUBLESHOOTING
1.1 High Pressure Protection
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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1.2 Low Pressure Protection
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
34
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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1.3 Discharge Protection
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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1.4 Overcurrent Protection
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
39
1.5 Temperature Sensor Protection
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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2 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PART
2.1 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
1.Dismantle retaining
screw of eletric box
cover
Unscrew the retaining
screw of electric box
with screwdriver.
2.Remove the cover
plate of electric box
Remove the cover
plate of electric box
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
41
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
1.Dismantle power cord
of fan.
Dismantle power
cord of fan
Note: Mark the
power cord with the
code of relevant
terminal to avoid
mixture when
recovering wiring.
2. Dismantle the top
cover.
1. 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
1. Dismantle fixed
bolts of fan blade to
remove it.
2. Unscrew the bolts
which connect the
motor and top cover
to remove the motor.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
42
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
1. Dismantle connecting
wire of power supply for
compressor
1. Unscrew the retaining screw of
power cord with screwdriver.
2. Unplug the power cord.
2.Dismantle the
discharge pipe and the
suction pipe of
compressor.
1. Replace the old process pipe with
a new one.
2. Conduct nitrogen-fill protection on
process pipe and the pressure of
nitrogen is 0.5±0.1kgf/c ㎡( 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
1.Unscrew retaining screws of the
compressor with box spanner.
2. Lift compressor out of the unit.
4.Fix the new
compressor on base
plate
1. 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±0.1kgf/c ㎡( relative
pressure)
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
43
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.
1. Vacuumize from process pipe.
2. Charge refrigerants into process
pipe and the volume shall comply
with nameplate.
3. Seal process pipe with sealing
clamp.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
44
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
1.Dismantle
electromagnetic
valve.
1.Dismantle
electromagnetic
valve with spanner.
2.Remove
electromagnetic
valve from 4-way
valve.
2. Dismantle 4-way
valve.
1.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 is
0.5±0.1kgf/c ㎡
( relative pressure)
3.Record the
direction of 4-way
valve and the
position of each vent
before remove
4-way valve.
Disconnect the connecting pipe of 4-way valve
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
45
3. Remove 4-way
valve
Remove old 4-way
valve from pipeline..
4. Install new 4-way
valve.
1. 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±0.1kgf/c ㎡
( relative pressure)
5.Install
electromagnetic
valve.
Install the
electromagnetic
valve in new 4-way
valve.
6.Inspect the system
and charge
Vacuumize and
charge refrigerants
Welding connecting pipe and 4-way valve
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
46
refrigerants. after confirmation
that there is no
leakage of the
system.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
47
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
1.Disconnect
the thermal
expansion
valve
1. 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±0.1kgf/c ㎡ ( relative
pressure)
2. Remove
thermal
expansion
valve.
Remove the thermal expansion
valve from the unit.
3.Install new
thermal
expansion
valve.
1.Install new thermal
expansion valve;
2. Weld the welding spot which
connect the other piping.
3. Detect the leakage of the
system, create vacuum and
charge refrigerants again.
Welding the connecting pipe and expansion valve
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
48
3 EXPLODED VIEWS AND PART LIST 1) Model: HW14018Na-D, HW14024Na-D Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
49
Parts List No. Name of part Part code Quantity
1 Cover Plate Sub-Assy 1262290 1
2 AxialFlow Fan 10358203 1
3 Fixed Board 1722121 1
4 Wire pipe 05012140 ①
1 050121402 ②
5 Fan Motor 15702101 1
6 Nut 70318204 4
7 Top trademark 26902213 1
8 Rear Grill Sub-Assy 01572210P 1
9 Condenser Assy 1122237 1
10 Side trademark 26902212 1
11 Bracket 01892240P 3
12 Compressor 00103737 ①
1 00202234 ②
13 Side Plate 3 01312250P 2
14 electrical supporting plate 01342247P 1
15 Side Plate 1 01312245P 1
16 AC Contactor 44010283 1
17 Capacitor 3300007909 ①
1 3300007904 ②
18 Capacitor clamp 2143401 1
19 Terminal Board 420111451 1
20 inner cup 1318206 1
21 Tube-exit plate 1388210 1
22 o-gasket 76515202 2
23 Cut-off valve Sub-Assy 7332240 1
24 Inhalation Tube Sub-Assy 04652328 ①
1 04672284 ②
25 Electric Box Cover Sub-Assy 1408271 1
26 Base Plate Sub-Assy 0119221801P ①
1 01192218P ②
27 Side Plate 2 01312246P 1
28 piston 0738000114 ①
1 0738000109 ②
Note: ① is dedicated to HW14018Na-D . ② is dedicated to HW14024Na-D.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
50
2) Model: HW14030Na-D, HW14036Na-D, HW14042Na-D, HW14048Na-D Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
51
Parts List NO. Name of part Part code Quantity
1 Cover Plate Sub-Assy 1262288 1
2 AxialFlow Fan 10358211 1
3 Fixed Board 1722121 1
4 Wire pipe 527820501 1
5 Fan Motor 1570210201 ①②③
1 1570210301④
6 Nut 70318204 4
7 Top trademark 2690221301 1
8 Rear Grill Sub-Assy 01572212P 1
9 Condenser Assy
01122238 ①②
1 01122241 ③
01122240 ④
10 Side trademark 2690221201 1
11 Bracket 01892241P ①②③
3 01892242P ④
12 Compressor
00202235 ①
1 00202225 ②
00202226 ③
00202227④
13 Side Plate 3 01312247P ①②③
2 01312253P ④
14 electrical supporting plate 01342246P ①②③
1 01342250P④
15 Side Plate 1 01312249P ①②③ 1
01312251P④
16 AC Contactor 44010283 1
17 Capacitor
3300007903 ①
1 3300007905 ②
3300007902 ③
33000079 ④
18 Capacitor clamp
02260003①
1 02143401②
02141375③④
19 Terminal Board 420111451 1
20 inner cup 1318206 1
21 Tube-exit plate 01388210 ①②③
1 01388208 ④
22 o-gasket 76515202 3
23 Cut-off valve Sub-Assy 07332238 ①②
1 07332248 ③
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
52
07332241 ④
24 Inhalation Tube Sub-Assy
04672286①
1 04672280 ②③
04652326 ④
25 Electric Box Cover Sub-Assy 1408271 1
26 Base Plate Sub-Assy 01192219P ①
1 01208232 ②③④
27 Side Plate 2 01312248P ①②③
1 01312252P ④
28 piston
0738000107 ①
1 0738000115 ②
07380001 ③
0738000116④
Note: ① is dedicated to HW14036Na-D . ② is dedicated to HW14042Na-D. ③ is dedicated to HW14048Na-D. ④ is dedicated to HW14048Na-D.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
53
3) Model: HW14060Na-D Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
54
Parts List No. Name of part Part code Quantity
1 Bolt 70210084 1
2 Fan Motor 15702213 1
3 AxialFlow Fan 10358212 1
4 Cover Plate Assy 01262289 1
5 Top trademark 26902213 1
6 Protection grill nets 01572211P 4
7 Bolt 70210084 1
8 Motor Assemble Bracket 01322218P 1
9 Condenser Assy 01122239 1
10 Side trademark 26902212 1
11 Bracket 01892242P 1
12 Compressor 00202236 1
13 Side Plate 3 01312254P 1
14 electrical supporting plate 01342245P 1
15 Side Plate 1 01312256P 1
16 AC Contactor 44010283 1
17 Capacitor 3300007901 1
18 Capacitor clamp 02260003 1
19 Terminal Board 420111451 1
20 inner cup 01318206 1
21 Tube-exit plate 01388208 1
22 o-gasket 76515202 2
23 Cut-off valve Sub-Assy 07332239 1
24 Inhalation Tube Sub-Assy 04672281 1
25 Electric Box Cover Sub-Assy 01408271 1
26 Base Plate Sub-Assy 01192205P 1
27 Side Plate 2 01312255P 1
28 piston 0738000113 1
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
55
4) Model: HWR14018Na-D, HWR14024Na-D, HWR14030Na-D, Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
56
Parts List No. Name of part Part code Quantity
1 Cover Plate
01262285①
1 01262285②
01262286③
2 AxialFlow Fan
10358203①
1 10358203②
10358211③
3 Fixed Board
01722121①
1 01722121②
01842252③
4 Plastic Pipe
05012140①
1 05012140②
05278205③
5 Fan Motor
15702101①
1 15702101②
1570210201③
6 Nut 70318204 4
7 Top trademark 26902213 1
8 Protection grill nets
01572210①
1 01572210②
01572212③
9 Condenser Assy
01122208①
1 0112220801②
0112210701③
10 Side trademark 26902212 1
11 Liquid-gas separator 07422202 1
12 Suction pipe
04652331①
1 04652331②
0465233701③
13 Bracket
01892240①
1 01892240②
01892241③
14 Compressor
00202209①
1 00202210②
00202211③
15 Side Plate 1
01312245①
1 01312245②
01312249③
16 Side Plate 3
01312250①
1 01312250②
01312247③
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
57
17 electrical supporting plate
01342247①
1 01342247②
01342246③
18 Terminal Board 42010194 1
19 Base(Terminal Board) 01802276
20 Mainboard 30222103
21 AC Contactor 44010283 1
22 Capacitor
3300007908①
1 3300007904②
3300007801③
23 Capacitor clamp 02143401 1
24 inner cover 01318206 1
25 Terminal Board 42010194
26 Tube-exit plate 01342253 1
27 o-gasket 76515202 2
28 Electric Box Cover 01418231 1
29 Filter Assy
07412208①
1 0741220801②
0731220101③
30 Service valve Assy
05022425①
1 05022425②
05022438③
31 Adjusting pipe
06112214①
1 06112214②
06112215③
32 4-way valve Assy
04142241①
1 04142239②
0414224401③
33 Base Plate Sub-Assy
01192221①
1 01192221②
0120822101③
34 Side Plate 2
01312246①
1 01312246②
01312248③
35 piston
0738000114 ①
1 0738000106 ②
0738000101 ③
Note: ① is dedicated to HWR14018Na-D . ② is dedicated to HWR14024Na-D. ③ is dedicated to HWR14030Na-D.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
58
5) Model: HWR14036Na-D, HWR14042Na-D, HWR14048Na-D, Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
59
Parts List No. Name of part Part code Quantity
1 Cover Plate 01262286 1
2 AxialFlow Fan 10358211 1
3 Fixed Board 01722121 1
4 Plastic Pipe 05278205 1
5 Fan Motor
1570210201①
1 1570210201②
1570210301③
6 Nut 70318204 4
7 Top trademark 26902213 1
8 Protection grill nets 01572212 1
9 Condenser Assy
01122206①
1 01122210②
01122209③
10 Side trademark 26902212 1
11 Liquid-gas separator 07422202①②
1 07422203③
12 Suction pipe
0465233701①
1 04652345②
04652346③
13 Bracket
01892241①
1 01892241②
01892242③
14 Compressor
00202212①
1 00202214②
00202216③
15 Side Plate 1
01312249①
1 01312249②
01312251③
16 Side Plate 3
01312247①
1 01312247②
01312253③
17 electrical supporting plate
01342246①
1 01342246②
01342250③
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
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18 Terminal Board 42010194 1
19 Base(Terminal Board) 01802276 1
20 Mainboard 30222103 1
21 AC Contactor 44010283 1
22 Capacitor
3300007905①
1 3300007905②
3300007906③
23 Capacitor clamp
02143401①
1 02141375②
02141375③
24 inner cover 01318206 1
25 Terminal Board 42010194
26 Tube-exit plate
01342253①
1 01342253②
01342254③
27 o-gasket 76515202 2
28 Electric Box Cover 01418231 1
29 Filter Assy
07312201①
1 07312201②
07412209③
30 Service valve Assy
05022438①
1 05022438②
05022426③
31 Adjusting pipe
06112215①
1 06112215②
06112202③
32 4-way valve Assy
0414224401①
1 0414224402②
0414224301③
33 Base Plate Sub-Assy
0120822001①
1 0120822001②
0120822101③
34 Side Plate 2
01312248①
1 01312248②
01312252③
35 piston 0738000110① 1
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
61
07380001②
0738000103③
Note: ① is dedicated to HWR14036Na-D . ② is dedicated to HWR14042Na-D. ③ is dedicated to HWR14048Na-D.
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
62
6) Model: HWR14060Na-D Exploded Views
DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE
63
Parts List No. Name of part Part code Quantity
1 Motor Assemble Bracket 01322218P 1
2 Fan Motor 15702213 1
3 AxialFlow Fan 10358212 1
4 Cover Plate 01262287P 1
5 Top trademark 2690221301 1
6 Protection grill nets 01572211P 1
7 Bolt 70210084 4
8 Bolt 70210084 8
9 Condenser Assy 1122211 1
10 Side trademark 2690221201 1
11 Liquid-gas separator 7422203 1
12 Suction pipe 4652347 1
13 Bracket 01892242P 3
14 Compressor 202217 1
15 Side Plate 1 01312256P 1
16 Side Plate 3 01312254P 2
17 electrical supporting plate 01342257P 1
18 Terminal Board 42010194 1
19 Base(Terminal Board) 1802276 1
20 Mainboard 30222103 1
21 AC Contactor 44010283 1
22 Capacitor 3300007907 1
23 Capacitor clamp 2143401 2
24 Inner cover 1318206 1
25 Terminal Board 42010194 1
26 Tube-exit plate 1388208 1
27 o-gasket 76515202 2
28 Electric Box Cover 1418231 1
29 Filter Assy 7412210 1
30 Service valve Assy 5022424 1
31 Adjusting pipe 6112217 1
32 4-way valve Assy 414224201 1
33 Base Plate Sub-Assy 01192206P 1
34 Side Plate 2 01312255P 1
35 Piston 738000116 1