Service_manual_of_R32_Pular_Pg102-113

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Sayfa 1

Service Manual

102
Installation and Maintenance

Sayfa 2

Service Manual

13

103
Installation and Maintenance

Sayfa 3

28K
Note:Take Capillary Sub-assy for example.

Step
Procedure

    1. Before disassembly

   2. Remove top cover

Remove the screws fixing top panel and then remove 
the top panel.

    3. Remove big handle and valve cover

Remove the screws fixing big handle, valve cover and 
then remove them.

104
Installation and Maintenance

Service Manual

top cover

big handle

valve cover

Sayfa 4

Service Manual

Step
Procedure

    4. Remove front panel assy

Remove connection screws connecting the front panel 
assy with the chassis and the motor support, and then 
remove the front panel assy.

   5. Remove rear grill

Remove the screws connecing the left side plate and 
right side plate and then remove rear grill.

   6. Remove right side plate assy

Rescrew the ground screws, remove the ground wires, 
loosen the screws fixing terminal board, remove the 
terminal board, rescrew the screws fixing the right 
plate, and remove the right side plate assy.

105
Installation and Maintenance

Front Panel Assy

Rear Grill

Right Side 
Plate Assy

Sayfa 5

Step
Procedure

    7. Remove valve suppprt

Remove the valve support bolck, remove the screws 
fixing valve support, remove the screws fixing the liquid 
valve and gas valve  then remove the valve support.

    8. Remove gas valve and liquid valve

Unsolder the welding joint connecting the gas valve 
and the liquid valve, remove them.
Note:
Discharge the refrigerant completely befor unsoldering; 
when unsoldering, wrap the gas valve with a wet cloth 
completely to avoid damage to the valve caused by 
high temperature.

    9. Remove electric box assy

Remove the terminals, lift up and rotate the electrical
box assy to the right so that the snaps on the clapboard
are removed and the electrical box assy are removed.

106
Installation and Maintenance

Service Manual

valve supprt

Electronic expansion valve

welding joint

liquid valve

gas valve

Electric Box Assy

Sayfa 6

Service Manual

Step
Procedure

    10. Remove 4-way valve assy

Unsolder the welding joints connecting the 4-way valve 
assy, remove the 4-way valve.
Note:
Before unsoldering the welding joint, wrap the 4-way 
valve with a wet cloth completely to avoid damage to 
the valve caused by high temperature.

  11. Remove Capillary Sub-assy

Unsolder the welding joint connecting the capillary
subassy and then remove the capillary sub-assy.

  12. Remove axial flow fan

Remove the nut on the fan and then remove the axial
flow fan.

107
Installation and Maintenance

4-way valve 
assy

welding joint

Capillary Sub-assy

welding joint

axial flow fan

Sayfa 7

Step
Procedure

    13. Remove motor

Remove the screws fixing the motor and then remove
the motor.

   14. Remove motor support

Remove the screws fixing the motor support and lift the
motor support to remove it.

    15. Remove clapboard assy

Remove the screws fixing the clapboard assy and then
remove the clapboard assy.

108
Installation and Maintenance

Service Manual

motor

motor support

clapboard assy

Sayfa 8

Service Manual

Step
Procedure 

     16. Remove compressor

Remove the 3 foot nuts on the compressor and then
remove the compressor.

109
Installation and Maintenance

compressor

foot nut

Sayfa 9

Service Manual
Appendix

Appendix 1: Reference Sheet of Celsius and Fahrenheit

Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32

Set temperature

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

（℉）

（℃）

（℉）

（℃）

（℉）

（℃）

61
60.8
16
69/70
69.8
21
78/79
78.8
26

62/63
62.6
17
71/72
71.6
22
80/81
80.6
27

64/65
64.4
18
73/74
73.4
23
82/83
82.4
28

66/67
66.2
19
75/76
75.2
24
84/85
84.2
29

68
68
20
77
77
25
86
86
30

Ambient temperature

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

 Fahrenheit display 
temperature（℉）

Fahrenheit

Celsius

( ℉)

（℃）

（℉）

（℃）

（℉）

（℃）

32/33
32
0
55/56
55.4
13
79/80
78.8
26

34/35
33.8
1
57/58
57.2
14
81
80.6
27

36
35.6
2
59/60
59
15
82/83
82.4
28

37/38
37.4
3
61/62
60.8
16
84/85
84.2
29

39/40
39.2
4
63
62.6
17
86/87
86
30

41/42
41
5
64/65
64.4
18
88/89
87.8
31

43/44
42.8
6
66/67
66.2
19
90
89.6
32

45
44.6
7
68/69
68
20
91/92
91.4
33

46/47
46.4
8
70/71
69.8
21
93/94
93.2
34

48/49
48.2
9
72
71.6
22
95/96
95
35

50/51
50
10
73/74
73.4
23
97/98
96.8
36

52/53
51.8
11
75/76
75.2
24
99
98.6
37

54
53.6
12
77/78
77
25

Appendix 2: Configuration of Connection Pipe

1.Standard length of connection pipe(More details please refer to the specifications.)

2.Min length of connection pipeFor the unit with standard connection pipe of 5m, there is no limitation for themin length of

connection pipe. For the unit with standard connection pipe of 7.5m and 8m, the min length of connection pipe is 3m.

3.Max. length of connection pipe and max. high difference.(More details please refer to the specifications.)

4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe

● After the length of connection pipe is prolonged for 10m at the basis of standard length, you should add 5ml of refrigerant oil for each 
additional 5m of connection pipe.

● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):

● Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table. The additional refrigerant 
charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.

● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter 

Additional refrigerant charging amount for R32

Piping size
Indoor unit throttle
Outdoor unit throttle

Cooling only,
cooling and heating

Liquid pipe
Gas pipe

Cooling only(g/m)
Cooling and heating(g/m)

(g / m)

1/4”
3/8” or 1/2”
16
12
16

1/4” or 3/8”
5/8” or 3/4”
40
12
40

1/2”
3/4” or 7/8”
80
24
96

5/8”
1" or 1 1/4”
136
48
96

3/4''
/
200
200
200
7/8''
/
280
280
280

110
Installation and Maintenance

Sayfa 10

Appendix

Service Manual

Appendix 3: Pipe Expanding Method

Note:

Improper pipe expanding is the main cause of refrigerant leakage.Please expand 

the pipe according to the following steps:

A:Cut the pip
● Confirm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.

B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.

C:Put on suitable insulating pipe.

D:Put on the union nut

● Remove the union nut on the indoor connection pipe and outdoor valve; install

the union nut on the pipe.

E:Expand the port
● Expand the port with expander.

Note:

● "A" is different according to the diameter, please refer to the sheet below:

Outer diameter(mm)
A(mm)
Max
Min
Ф6 - 6.35 (1/4")
1.3
0.7
Ф9 - Ф9.52 (3/8”)
1.6
1.0
Ф12 - 12.70 (1/2”)
1.8
1.0
Ф16 - 15.88 (5/8”)
2.4
2.2

F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the port 
again according to the steps above.

111
Installation and Maintenance

Pipe

Pipe cutter

Leaning
Uneven
Burr

Pipe

Shaper

Downwards

Union pipe

Pipe

Hard
mold

Expander

Pipe

Smooth surface

Improper expanding

leaning
damaged

crack
uneven
thickness

surface

The length is equal

Sayfa 11

Appendix

Appendix 4: List of Resistance for Temperature Sensor

Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)

oC)
Resistance(kΩ)
Temp(

Temp(

-19
138.10 
0
49.02 
20
18.75 
40
7.97 

-18
128.60 
2
44.31 
22
17.14 
42
7.35 

-16
115.00 
4
40.09 
24
15.68 
44
6.79 

-14
102.90 
6
36.32 
26
14.36 
46
6.28 

-12
92.22 
8
32.94 
28
13.16 
48
5.81 

-10
82.75 
10
29.90 
30
12.07 
50
5.38 

-8
74.35 
12
27.18 
32
11.09 
52
4.99 

-6
66.88 
14
24.73 
34
10.20 
54
4.63 

-4
60.23 
16
22.53 
36
9.38 
56
4.29 

-2
54.31 
18
20.54 
38
8.64 
58
3.99 

Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)

oC)
Resistance(kΩ)
Temp(

Temp(

-19
181.40 
20
25.01 
60
4.95 
100
1.35 

-15
145.00 
25
20.00 
65
4.14 
105
1.16 

-10
110.30 
30
16.10 
70
3.48 
110
1.01 

-5
84.61 
35
13.04 
75
2.94 
115
0.88 

0
65.37 
40
10.62 
80
2.50 
120
0.77 

5
50.87 
45
8.71 
85
2.13 
125
0.67 

10
39.87 
50
7.17 
90
1.82 
130
0.59 

15
31.47 
55
5.94 
95
1.56 
135
0.52 

Resistance Table of Discharge Temperature Sensor for Outdoor(50K)

Temp(

oC)
Resistance(kΩ)
Temp(

-30
911.400 
10
98
50
17.65
90
4.469

-25
660.8
15
77.35
55
14.62
95
3.841

-20
486.5
20
61.48
60
12.17
100
3.315

-15
362.9
25
49.19
65
10.18
105
2.872

-10
274
30
39.61
70
8.555
110
2.498

-5
209
35
32.09
75
7.224
115
2.182

0
161
40
26.15
80
6.129
120
1.912

5
125.1
45
21.43
85
5.222
125
1.682

112
Installation and Maintenance

Service Manual

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)

Sayfa 12

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070
Tel: (+86-756) 8522219         
Fax: (+86-756) 8669426
E-mail: global@cn.gree.com

For product improvement, specifications and appearance in this manual are subject to change without prior notice.

JF00304814