Carrier 38QHC009D8S Series, Service Manual

Page: 17 / 55

15
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
42QH38QHC009D8S
42QH38QHC012D8S
3/8’’
(
Ф9.52)
1/4’’
(Ф6.35)
5 10 25 12
42QH 38QHC018D8S
1/2
’’
(Ф12.7)
1/4’’
(Ф6.35)
5 20 30 12
42QH 38QHC024D8S
5
/8’’
(
Ф15.9)
3/8’’
(
Ф9.52)
5 25 50 24
Caution:
For the R290 or R32 refrigerant model, make sure the conditions within the area have been made safe
by control of flammable material when the refrigerant added into air conditioner.
The maximum refrigerant charge amount of R290 is 305 grams.
Caution:
The capacity test is based on the standard length and the maximum permissive length is based on the
system reliability.