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15. Check the additional amount of refrigerant.
Checklist 2
Calculate total additional amount refrigerant from the compensation amount of refrigerant according to total
outdoor unit horsepower (A), the additional amount of refrigerant by the pipe diameter on the liquid side and the
pipe length (B),the compensation amount of refrigerant according to indoor unit horsepower (C), and the total
compensation amount of refrigerant according to the system diversity (D)
Additional amount
=
of refrigerant
First, refer to following table below, calculate the the compensation amount of refrigerant according to total
outdoor unit horsepower (A)
<Compensation amount of refrigerant according to total outdoor unit horsepower (A)>
Total
Combination
outdoor
unit
HP
HP
8
8
-
-
10
10
-
-
12
12
-
-
14
14
-
-
14A
14A
-
-
16
16
-
-
18
18
-
-
20
20
-
-
22
22
-
-
24
24
-
-
26
14
12
-
28
14
14
-
30
18
12
-
32
20
12
-
34
20
14
-
36
24
12
-
38
24
14
-
40
20
20
-
42
24
18
-
44
24
20
-
46
24
22
-
48
24
24
-
50
24
14
12
52
24
14
14
54
20
20
14
56
24
20
12
58
24
20
14
60
24
24
12
62
24
24
14
Compensation amount of refrigerant
according to total outdoor unit horsepower
(A)
Compensation amount of refrigerant
+
according to indoor unit horsepower
(C)
Compensation by
total outdoor
unit HP
(kg)
-
-
1.5 kg
-
-
1.7 kg
-
-
2.3 kg
-
-
2.3 kg
-
-
0.8 kg
-
-
1.0 kg
-
-
2.0 kg
-
-
4.0 kg
-
-
5.0 kg
-
-
5.5 kg
-
-
4.6 kg
-
-
4.6 kg
-
-
4.3 kg
-
-
6.3 kg
-
-
6.3 kg
-
-
7.8 kg
-
-
7.8 kg
-
-
8.0 kg
-
-
7.5 kg
-
-
9.5 kg
-
-
10.5 kg
-
-
11.0 kg
-
-
10.1 kg
-
-
10.1 kg
-
-
10.3 kg
-
-
11.8 kg
-
-
11.8 kg
-
-
13.3 kg
-
-
13.3 kg
Actual liquid pipe length × Additional amount
+
of refrigerant per 1 m of liquid pipe
Compensation amount of refrigerant
+
according to the system diversity
Total
Combination
outdoor
unit
HP
HP
64
24
20
20
66
24
22
20
68
24
24
20
70
24
24
22
72
24
24
24
74
24
24
14
76
24
24
14
78
24
20
20
80
24
24
20
82
24
24
20
84
24
24
24
86
24
24
24
88
24
24
20
90
24
24
22
92
24
24
24
94
24
24
24
96
24
24
24
98
24
24
24
100
24
24
24
102
24
24
20
104
24
24
24
106
24
24
24
108
24
24
24
110
24
24
24
112
24
24
24
114
24
24
24
116
24
24
24
118
24
24
24
120
24
24
24
– 103 –
(B)
(D)
Compensation by
total outdoor
unit HP
(kg)
-
-
13.5 kg
-
-
14.5 kg
-
-
15.0 kg
-
-
16.0 kg
-
-
16.5 kg
12
-
15.6 kg
14
-
15.6 kg
14
-
15.8 kg
12
-
17.3 kg
14
-
17.3 kg
12
-
18.8 kg
14
-
18.8 kg
20
-
19.0 kg
20
-
20.0 kg
20
-
20.5 kg
22
-
21.5 kg
24
-
22.0 kg
14
12
21.1 kg
14
14
21.1 kg
20
14
21.3 kg
20
12
22.8 kg
20
14
22.8 kg
24
12
24.3 kg
24
14
24.3 kg
20
20
24.5 kg
22
20
25.5 kg
24
20
26.0 kg
24
22
27.0 kg
24
24
27.5 kg
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