Midea 9ASI-A-1209, Service Manual

Page: 17 / 57

17
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
MS9AU-09HRDN1-QRC4W+MOB-09HFN1-QRC
4W
3/8’’
( Ф 9.52)
1/4’’
( Ф 6.35)
5 8 20 20
MS9AU-12HRDN1-QRC4W+MOB-12HFN1-QRC
4W
5 8 20 20
MS9AU-18HRDN1-QRC4W+MOC-18HFN1-QRC
4W
1/2’’
( Ф 12.7)
1/4’’
( Ф 6.35)
5 10 25 20
MS9A-24HRDN1-QRC4W+MOF-24HFN1-QRC4
W
5/8’’
( Ф 15.9)
3/8’’
( Ф 9.52)
5 10 25 40
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.