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6.3 Pipe length and the elevation
The pipe length and refrigerant amount:
Model Connective
pipe length
Air purging method
Additional amount of refrigerant to be charged
All
Less than 5m
Use vacuum pump
------------------
9K/12K
More than 5m
Use vacuum pump
(Pipe length – 5) × 20g/m
18K/24K More than 5m
Use vacuum pump
(Pipe length – 5) × 40g/m
Model
Standard
length
(m)
Max.
Elevation
B (m)
Max.
Length
A (m)
9K/12K 5
8
20
18K/24K 5
10
25
Caution:
Capacity test is based on standard length and maximum allowance length is based on system
reliability.
Oil trap should be installed per 5-7 meters.
