LG LMCN185HV Installation Instructions - Page 36

Connection of piping - Outdoor

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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) A~D-UNIT gas side pipe 2) A~D-UNIT 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 follows the arrow on the wrench. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Ø12.7 1/2 Torque kgf.m(lbf.ft) 1.8~2.5 (13~18) 3.4~4.2 (24~30) 5.5~6.6 (40~48) (Only Indoor Units 18 kBtu/h class ) Outdoor unit(24/36 kBtu/h class) Liquid side piping Gas side piping A-UNIT B-UNIT C-UNIT D-UNIT Main gas side valve Main liquid side valve Outdoor unit(18 kBtu/h class) A-Unit Gas pipe B-Unit Liquid pipe Torque wrench 36 Multi Air Conditioner

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36
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) A~D-UNIT gas side pipe
2) A~D-UNIT 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
follows the arrow on the wrench.
Main gas
side valve
Main liquid
side valve
Gas side piping
Liquid
side piping
A-UNIT
B-UNIT
C-UNIT
D-UNIT
Outdoor unit(24/36 kBtu/h class)
Gas pipe
Liquid pipe
Torque wrench
B-Unit
A-Unit
Outdoor unit
(18 kBtu/h class)
Connection of piping - Outdoor
Outside diameter
Torque
mm
inch
kgf.m(lbf.ft)
Ø
6.35
1/4
1.8~2.5 (13~18)
Ø
9.52
3/8
3.4~4.2 (24~30)
Ø
12.7
1/2
5.5~6.6 (40~48)
(Only Indoor Units
18 kBtu/h class )