LG LUU249HV, Instruction Manual

Page: 13 / 23

CONNECTING COPPER PIPES
ENGLISH
13
Connecting the pipes to the
Outdoor unit
- Align the center of the piping and sufficiently
tighten the flare nut by hand.
- 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.
* When tighten the pipe, hold the haxagonal
body.
- When connecting in a downward direction,
knock out the knock-out hole of the base
pan. (refer to figure 2)
Preventing foreign objects from entering
(Figure3)
- Plug the pipe through-holes with putty or
insulation material(procured locally)to stop
up all gaps,as shown in the figure 3.
Outside diameter Torque
mm inch N·m kgf·m lbf·ft
Ø 6.35 1/4 14~18 1.4~1.8 10~13
Ø 9.52 3/8 34~42 3.5~4.3 25~31
Ø 12.7 1/2 49~61 5.0~6.2 36~45
Ø 15.88 5/8 69~82 7.0~8.4 51~60
Ø 19.05 3/4 100~120 10.0~12.2 73~88
Continuous Continuous Continuous
Torque
wrench
Forward
Sideways
Backward
Downward
<Figure 1>
Knock-out Base pan
<Figure 2>
<Figure 3>
Putty or insulating material
(produced locally)
Drain hose
Communication
cable
Liquid side piping
Gas side piping
Refrigerant pipe
CAUTION
!
• Insects or small animals entering the
outdoor unit may cause a short circuit in
the electrical box.