LG THERMA V Air-to-Water Heat Pump Installation Manual page 45

Connecting Pipe to Outdoor Unit
(Product Heating Capacity : 9kW)
• Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
• 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
Align the center of the piping and sufficiently
tighten the flare nut by hand.
Torque
kgf . m
inch
1/4 1.8~2.5
3/8 3.4~4.2
1/2 5.5~6.6
5/8 6.3~8.2
3/4 9.9~12.1
Piping and Wiring for Outdoor Unit
Outdoor unit
Torque wrench
Installation Manual 45
Gas side piping
Liquid side piping