LG LAN091CNP, LAU091CNP, LAN121CNP - Pipe Length and the Elevation

Service Manual 55
Troubleshooting Guide
Piping Length and Elevation
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
If piping length is more than 16.4ft(5m)
CAUTION: Capacity is based on standard length and maximum allowance length is
on the basis of reliability.
Oil trap should be installed every 16.4~23feets (5~7 meters).
Pipe Size
Capacity
(Btu/h)
Suction Evap
Max.
length
A m(ft)
Additional
Refrigerant
g/m(oz/ft)
Max.
Elevation
B m(ft)
Standard
Length
m(ft)
9k, 12k Ø12.7mm(1/2") Ø6.35mm(1/4") 7.5(25) 7.5(25) 15(49) 20(0.22)