Connection Of Piping - Outdoor - LG LMN097HVT Installation Manual

Flaring Work and Connection of Piping

Connection of piping - Outdoor

Align the center of the piping and sufficiently
tighten the flare nut by hand.
Connecting pipe order
1) ROOM A~C gas side pipe
2) ROOM A~C liquid side pipe
Finally, tighten the flare nut with torque wrench
until the wrench clicks.
• When tightening the flare nut with torque
wrench ensure the direction for tightening fol-
lows the arrow on the wrench.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
30 Multi Air Conditioner
Torque
N. m kgf.m
14~18 1.4~1.8 10~13
34~42 3.5~4.3 25~31
49~61 5.0~6.2 36~45
69~82 7.0~8.4 51~60
100~120 10.0~12.2 73~88
Outdoor unit
Main liguid
side valve
lbf.ft
Liquid
side piping
Ø12.7(1/2 inch)
Connector
Main gas
side valve
Gas side
piping
ROOM A
ROOM B
ROOM C