Connection Of Piping - Outdoor - LG MULTI F Installation Manual
Multi-zone heat pump systems
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Also See for MULTI F:
- Engineering manual (224 pages) ,
- Installation manual (65 pages) ,
- Install (9 pages)
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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
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