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13-2. How to Operate the System during Repairing of the
Defective Outdoor Unit
<Work procedure>
1. Follow to the abovementioned “13-1. Refrigerant Recovery in the Troubled Outdoor Unit”.
2. Next, recover the refrigerant in the system by using a recovery device, etc.
The refrigerant amount to be recovered is determined based upon the capacity of the troubled outdoor unit.
(See the following table.)
Example) In a case of backup for 10HP-outdoor unit in 30HP system:
in the original system HP (30HP system) = 37.5kg
Refrigerant amount in system HP (20HP system) after backup = 28.0kg
Refrigerant amount to be recovered = 37.5 – 28.0 = 9.5kg
3. For the unit which refrigerant has been recovered, execute “Outdoor Unit Backup Setup” in another section.
All the work has finished.
System
HP
5
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
Combination of outdoor units
5
6
8
10
12
8
6
8
8
10
8
10
10
8
8
6
12
10
8
8
8
12
12
10
8
8
10
10
8
10
10
10
8
8
8
8
12
10
10
10
8
8
8
12
12
10
10
10
8
8
12
12
12
10
10
10
8
10
10
10
10
12
10
10
10
12
12
10
10
12
12
12
10
12
12
12
12
Refrigerant amount
(kg)
8.5
8.5
14.0
15.0
16.0
21.0
25.0
25.0
28.0
33.5
30.0
33.5
32.0
33.5
35.0
37.5
44.0
38.5
44.0
40.0
44.0
41.5
44.0
45.0
46.0
48.0
50.0
52.0
Содержание MMC-AP0151H
Страница 270: ......
