Appendix; Appendix 1: Reference Sheet Of Celsius And Fahrenheit; Appendix 2: Configuration Of Connection Pipe - Gree GWH18YD-K6DNA2A 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.
For the unit with standard connection pipe of 5m, there is no limitation for the min 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 Sheet 2.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter
Diameter of connection pipe
Liquid pipe(mm)
Ф6
Ф6 or Ф9.5
Ф12
Ф16
Ф19
Ф22.2
Note: The additional refrigerant charging amount in Sheet 2 is recommended value, not compulsory.
78
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 R32
Gas pipe(mm)
cooling and heating(g / m)
Ф9.5 or Ф12
Ф16 or Ф19
Ф19 or Ф22.2
Ф25.4 or Ф31.8
/
/
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
Outdoor unit throttle
Cooling only, Cooling only
16
40
80
136
200
280
Fahrenheit
display Fahrenheit
temperature
（℉）
（℉）
78/79 78.8
80/81 80.6
82/83 82.4
84/85 84.2
86 86
Fahrenheit
display Fahrenheit
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
Cooling and heating
(g / m) (g/m)
12 16
12 40
24 96
48 96
200 200
280 280
Installation and Maintenance
Service Manual
Celsius （℃）
26
27
28
29
30
Celsius （℃）
26
27
28
29
30
31
32
33
34
35
36
37