LG R18AWN-NC9 Installation Manual page 17

Outdoor unit
1. Remove the tubing cover from the unit by
loosening the screw.
2. Align the center of the pipings and sufficiently
tighten the flare nut by hand.
3. 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
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
Torque
inch kgf.m
1/4 1.8~2.5
3/8 3.4~4.2
1/2 5.5~6.5
5/8 6.3~8.2
3/4 9.9~12.1
1(L) 2(N) 3(C)
Terminal Block
Outdoor unit
Torque wrench
Installation
Cover control
Tubing Cover
Gas side piping
(Bigger diameter)
Liquid side piping
(Smaller diameter)
Installation Manual 17