Appendix; Appendix 1: Reference Sheet Of Celsius And Fahrenheit; Appendix 2: Configuration Of Connection Pipe - Gree GWH12UB-K3DNA4F 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 60.8
62/63 62.6
64/65 64.4
66/67 66.2
68 68
Ambient temperature
Fahrenheit
display Fahrenheit
temperature
（℉）
（℉）
32/33 32
34/35 33.8
36 35.6
37/38 37.4
39/40 39.2
41/42 41
43/44 42.8
45 44.6
46/47 46.4
48/49 48.2
50/51 50
52/53 51.8
54 53.6

Appendix 2: Configuration of Connection Pipe

1.Standard length of connection pipe
● 5m, 7.5m, 8m.
2.Min. length of connection pipe is 3m.
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 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):
● When the length of connection pipe is above 5m, 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
Liquid pipe(mm)
Ф6 or Ф9.5
110
Fahrenheit
display
Celsius （℃）
temperature
（℉）
16 69/70
17 71/72
18 73/74
19 75/76
20 77
Fahrenheit
display
Celsius （ ℃）
temperature
（℉）
0 55/56
1 57/58
2 59/60
3 61/62
4 63
5 64/65
6 66/67
7 68/69
8 70/71
9 72
10 73/74
11 75/76
12 77/78
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Gas pipe(mm)
Ф6 Ф9.5 or Ф12
Ф16 or Ф19
Ф12 Ф19 or Ф22.2
Ф16 Ф25.4 or Ф31.8
Ф19 /
Ф22.2 /
Fahrenheit
Celsius （℃）
（℉）
69.8 21
71.6 22
73.4 23
75.2 24
77 25
Fahrenheit
Celsius（℃）
（℉）
55.4 13
57.2 14
59 15
60.8 16
62.6 17
64.4 18
66.2 19
68 20
69.8 21
71.6 22
73.4 23
75.2 24
77 25
Cooling capacity
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(g/m) Cooling and heating(g/m)
15
15
30
60
250
350
Fahrenheit
display Fahrenheit
Celsius （℃）
temperature
（℉）
（℉）
78/79 78.8
80/81 80.6
82/83 82.4
84/85 84.2
86 86
Fahrenheit
display Fahrenheit
Celsius （℃）
temperature
（℉）
（℉）
79/80 78.8
81 80.6
82/83 82.4
84/85 84.2
86/87 86
88/89 87.8
90 89.6
91/92 91.4
93/94 93.2
95/96 95
97/98 96.8
99 98.6
Max length of Max height
connection pipe difference
15 m
15 m
15 m
20 m
25 m
25 m
30 m
30 m
30 m
30 m
20
20
120
120
250
350
Installation and Maintenance
Service Manual
26
27
28
29
30
26
27
28
29
30
31
32
33
34
35
36
37
5 m
5 m
10 m
10 m
10 m
10 m
10 m
20 m
20 m
20 m