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30 Multi Air Conditioner
Flaring Work and Connection of Piping
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.
Ø12.7(1/2 inch)
Connector
Outdoor unit
Liquid
side piping
Main liguid
side valve
Main gas
side valve
ROOM A
ROOM B
ROOM C
Gas side
piping
Connection of piping - Outdoor
Outside diameter Torque
mm inch N. m kgf.m lbf.ft
Ø6.35 1/4 14~18 1.4~1.8 10~13
Ø9.52 3/8 34~42 3.5~4.3 25~31
Ø12.7 1/2 49~61 5.0~6.2 36~45
Ø15.88 5/8 69~82 7.0~8.4 51~60
Ø19.05 3/4 100~120 10.0~12.2 73~88
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