Pipe Length And Elevation - Heat Controller VMH C Series Service Manual

Service Manual
6.3 Pipe length and the elevation
Capacity
Btu/h
30K
36K
Caution:
Unit charge on rating plate includes enough refrigerant for 16.5 ft. (5m) of line set. The capacity is
based on standard length and the maximum permissive length is based on the system reliability.
Oil trap should be installed per 16.5-23 ft. (5-7 meters.) when outdoor unit is installed 16.5 ft. (5m)
higher than the indoor unit. It is not necessary to install oil traps when outdoor unit is located lower
than indoor unit. Charge adjustment is not required for line set lengths less than 16.5 ft. (5m).
VMH 30, 36 SerieS
Pipe size
Gas Liquid
5/8'' 3/8''
(Ф16) (Ф9.52)
Standard Max.
length Elevation
ft. (m) B ft. (m)
16.5(5) 33(10)
16
Max. Additional
Length refrigerant
A ft. (m) oz /ft. (g/m)
50(15)
0.4(40)
50(15)
Heat Controller