Fisher FSAIF-Pro-123AE2, Service Manual

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6.3 Pipe length and the elevation
The pipe length and refrigerant amount:
Model
Pipe size
Standard
length
(m)
Max.
Elevation
B (m)
Max.
Length
A (m)
Additional
refrigerant
(g/m)
Gas Liquid
9k
3/8’’
(Ф9.52)
1/4’’
(Ф6.35)
5 10 25 15
12k 5 10 25 15
18k
1/2’’
(Ф12.7)
1/4’’
(Ф6.35)
5 20 30 15
24k
3/5’’
(Ф15.9)
3/8’’
(Ф9.52)
5 25 50 30
Caution:
The capacity test is based on the standard length and the maximum permissive length is based on the
system reliability.
The oil trap should be installed per 5-7 meters.