Connection Of Piping - Outdoor - LG A7UW40GFA0 Installation Manual

- Bundle the piping and drain hose together by
wrapping them with vinyl tape over the
range within which they fit into the rear
piping housing section.
CAUTION
!
Installation Information (For right piping) For right piping, follow the instruction below.
Good case
Press on the upper side of clamp and unfold
the tubing to downward slowly.

Connection of piping - Outdoor

Align the center of the piping and sufficiently
tighten the flare nut by hand.
Connecting pipe order
1) ROOM A~E gas side pipe
2) ROOM A~E 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
Ø9.52
Ø12.7
Ø15.88
Ø19.05
FLARING WORK AND CONNECTION OF PIPING
Torque
N . m
1/4 16±2
3/8 38±4
1/2 55±6
5/8 75±7
3/4 110±10
Wrap with vinyl tape
Pipe
Drain hose
Bad case
Following bending type from left to right could
cause problem of pipe damage.
Outdoor unit
Main liquid
side valve
Liquid
side piping
15
Vinyl tape(wide)
Ø 12.7(1/2 inch) Connector
Main gas
side valve
Gas side piping
ROOM A
ROOM B
ROOM C
ROOM D
ROOM E