Appendix; Appendix 1: Reference Sheet Of Celsius And Fahrenheit; Appendix 2: Configuration Of Connection Pipe - Gree GWC30LB-D3DNA3H Service Manual

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 Fahrenheit
temperature
（℉）
61
62/63
64/65
66/67
68
Ambient temperature
Fahrenheit
display Fahrenheit
temperature
（℉）
32/33
34/35
36
37/38
39/40
41/42
43/44
45
46/47
48/49
50/51
52/53
54

Appendix 2: Configuration of Connection Pipe

1.Standard length of connection pipe
● 16.40ft, 24.61ft, 26.25ft.
2.Min. length of connection pipe is 9.84ft.
3.Max. length of connection pipe and max. high difference.
4.The additional refrigerant oil and refrigerant charging required after
prolonging connection pipe
● After the length of connection pipe is prolonged for 32.81ft at the
basis of standard length, you should add 5ml of refrigerant oil for each
additional 16.40ft of connection pipe.
● The calculation method of additional refrigerant charging amount (on
the basis of liquid pipe):
● When the length of connection pipe is above 16.40ft, add refrigerant according to the prolonged length of liquid pipe. 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
Installation and Maintenance
Fahrenheit
Celsius （℃）
temperature
（℉）
60.8 16
62.6 17
64.4 18
66.2 19
68 20
Fahrenheit
Celsius （ ℃）
temperature
（℉）
32 0
33.8 1
35.6 2
37.4 3
39.2 4
41 5
42.8 6
44.6 7
46.4 8
48.2 9
50 10
51.8 11
53.6 12
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Liquid pipe(inch) Gas pipe(inch)
Ф1/4 Ф3/8or Ф1/2
Ф1/4 or Ф3/8 Ф5/8 or Ф3/4
Ф1/2 Ф3/4 or Ф7/8
Ф5/8 Ф1 or Ф1 1/4
Ф3/4
Ф7/8
display Fahrenheit
Celsius （℃）
（℉）
（℉）
69/70 69.8
71/72 71.6
73/74 73.4
75/76 75.2
77 77
display Fahrenheit
Celsius（℃）
（℉）
（℉）
55/56 55.4
57/58 57.2
59/60 59
61/62 60.8
63 62.6
64/65 64.4
66/67 66.2
68/69 68
70/71 69.8
72 71.6
73/74 73.4
75/76 75.2
77/78 77
5000 Btu/h(1465 W)
7000 Btu/h(2051 W)
9000 Btu/h(2637 W)
12000 Btu/h(3516 W)
18000 Btu/h(5274 W)
24000 Btu/h(7032 W)
28000 Btu/h(8204 W)
36000 Btu/h(10548 W)
42000 Btu/h(12306 W)
48000 Btu/h(14064 W)
Outdoor unit throttle
Cooling only(oz/ft.) Cooling and heating(oz/ft.)
0.2
0.2
0.3
0.6
/ 2.7
/ 3.8
Fahrenheit
display Fahrenheit
temperature
（℉）
21 78/79
22 80/81
23 82/83
24 84/85
25 86
Fahrenheit
display Fahrenheit
temperature
（℉）
13 79/80
14 81
15 82/83
16 84/85
17 86/87
18 88/89
19 90
20 91/92
21 93/94
22 95/96
23 97/98
24 99
25
Max length of
Cooling capacity
connection pipe
49.21ft
49.21ft
49.21ft
65.62ft
80.02ft
80.02ft
98.43ft
98.43ft
98.43ft
98.43ft
0.2
0.5
1.3
1.3
2.7
3.8
Celsius （℃）
（℉）
78.8 26
80.6 27
82.4 28
84.2 29
86 30
Celsius （℃）
（℉）
78.8 26
80.6 27
82.4 28
84.2 29
86 30
87.8 31
89.6 32
91.4 33
93.2 34
95 35
96.8 36
98.6 37
Max height
difference
16.40ft
16.40ft
32.81ft
32.81ft
32.81ft
32.81ft
32.81ft
65.62ft
65.62ft
65.62ft
95