Piping Length And Elevation - LG MFL39817303 Installation Manual

Piping Length and Elevation

Pipe Size
Capacity
(Btu/h)
GAS
9k, 12k 9.52 (3/8")
18k 12.7(1/2")
24k 15..88(5/8")
Indoor unit
A
B
Outdoor unit
Capacity is based on standard length and maximum allowance length is on the basis of reliability.
Oil trap should be installed every 5~7 meters(16.4~23.0ft).
Standard Length
m(ft)
LIQUID
6.35(1/4") 7.5 (25)
6.35(1/4") 7.5 (25)
9.52(3/8") 7.5 (25)
Outdoor unit
A
Indoor unit
B
Max. Max.
Elevation B Length A
m(ft) m(ft)
7 (23) 15 (49)
7 (23) 15 (49)
15 (49) 30 (98)
A
Oil trap
Indoor unit
If piping length is more than 5 m (16.4 ft)
Installation Manual 11
Installation
Additional Refrigerant
g/m(oz/ft)
20 (0.22)
20 (0.22)
30 (0.33)
Outdoor unit
B