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


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


3

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


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.


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


6

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.


7

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


8

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


9

CONTROL

DUCT TYPE SPLIT AIR CONDITIONER CONTROL

10

CONTROLLER 1 OPERATION FLOWCHART 1.1 Cooling/Dry Operation


11

1.2 Heating Operation


12

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:

]


13

Cooling Stop Sub Mode Flowchart:


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:


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


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:


17


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


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.


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


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.


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!


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


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.


26

5.2 Wiring Diagram

Model:HNF13018-D/HNF13024-D/HNF13030-D/HNF13036-D/HNF13042-D/HNF13048-D


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.


28

5.4 Electric Wiring Design

Model:

HW14018Na-D/HW14024Na-D/HW14030Na-D/HW14036Na-D/HW14042Na-D/HW14048Na-D/

HW14060Na-D


29

Model:

HWR14018Na-D/HWR14024Na-D/HWR14030Na-D/HWR14036Na-D/HWR14042Na-D/HWR14048Na-D

HWR14060Na-D


30

MAINTENANCE

DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE

31

MAINTENANCE

1 FLOW CHART OF TROUBLESHOOTING

1.1 High Pressure Protection


32


33

1.2 Low Pressure Protection


34


35

1.3 Discharge Protection


36

1.4 Overcurrent Protection


37


38


39

1.5 Temperature Sensor Protection


40

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


41

2.2 Fan and Fan Motor

Disassembly and Assembly of Fan and Fan Motor



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.


42

2.3Compressor

Disassembly and Assembly of 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)


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.


44

2.4The 4-way valve

Disassembly and Assembly of Compressor


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


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


46

refrigerants. after confirmation

that there is no

leakage of the

system.


47

2.5 Thermal expansion valve

Disassembly and Assembly of capillary


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


48

3 EXPLODED VIEWS AND PART LIST 1) Model: HW14018Na-D, HW14024Na-D Exploded Views


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.


50

2) Model: HW14030Na-D, HW14036Na-D, HW14042Na-D, HW14048Na-D Exploded Views


51

Parts List NO. Name of part Part code Quantity

1 Cover Plate Sub-Assy 1262288 1



4 Wire pipe 527820501 1

5 Fan Motor 1570210201 ①②③

1 1570210301④

6 Nut 70318204 4


8 Rear Grill Sub-Assy 01572212P 1

9 Condenser Assy

01122238 ①②

1 01122241 ③

01122240 ④


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


17 Capacitor

3300007903 ①

1 3300007905 ②

3300007902 ③

33000079 ④

18 Capacitor clamp

02260003①

1 02143401②

02141375③④


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


52

07332241 ④

24 Inhalation Tube Sub-Assy

04672286①

1 04672280 ②③

04652326 ④


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.


53

3) Model: HW14060Na-D Exploded Views


54


1 Bolt 70210084 1

2 Fan Motor 15702213 1


4 Cover Plate Assy 01262289 1


6 Protection grill nets 01572211P 4

7 Bolt 70210084 1

8 Motor Assemble Bracket 01322218P 1



11 Bracket 01892242P 1

12 Compressor 00202236 1

13 Side Plate 3 01312254P 1


15 Side Plate 1 01312256P 1


17 Capacitor 3300007901 1



20 inner cup 01318206 1


22 o-gasket 76515202 2

23 Cut-off valve Sub-Assy 07332239 1

24 Inhalation Tube Sub-Assy 04672281 1


26 Base Plate Sub-Assy 01192205P 1

27 Side Plate 2 01312255P 1

28 piston 0738000113 1


55

4) Model: HWR14018Na-D, HWR14024Na-D, HWR14030Na-D, Exploded Views


56


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


8 Protection grill nets

01572210①

1 01572210②

01572212③

9 Condenser Assy

01122208①

1 0112220801②

0112210701③


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


57

17 electrical supporting plate

01342247①

1 01342247②

01342246③


19 Base（Terminal Board） 01802276

20 Mainboard 30222103


22 Capacitor

3300007908①

1 3300007904②

3300007801③


24 inner cover 01318206 1

25 Terminal Board 42010194


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.


58

5) Model: HWR14036Na-D, HWR14042Na-D, HWR14048Na-D, Exploded Views


59


1 Cover Plate 01262286 1



4 Plastic Pipe 05278205 1

5 Fan Motor

1570210201①

1 1570210201②

1570210301③

6 Nut 70318204 4


8 Protection grill nets 01572212 1

9 Condenser Assy

01122206①

1 01122210②

01122209③


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


60


19 Base（Terminal Board） 01802276 1

20 Mainboard 30222103 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


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


61

07380001②

0738000103③

Note： ① is dedicated to HWR14036Na-D . ② is dedicated to HWR14042Na-D. ③ is dedicated to HWR14048Na-D.


62

6) Model: HWR14060Na-D Exploded Views


63


1 Motor Assemble Bracket 01322218P 1

2 Fan Motor 15702213 1


4 Cover Plate 01262287P 1


6 Protection grill nets 01572211P 1

7 Bolt 70210084 4

8 Bolt 70210084 8



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



19 Base（Terminal Board） 1802276 1

20 Mainboard 30222103 1


22 Capacitor 3300007907 1


24 Inner cover 1318206 1



27 o-gasket 76515202 2


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

condensing unit service manual t1/r410a/60hz · gree commercial air condition duct type split air...

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