Connection Of Piping - Outdoor - LG UU18WE Installation Manual

CONNECTING PIPES
12
Connection of piping -
Outdoor
- 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.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Outdoor unit
Gas side piping
(Bigger Dia.)
Torque wrench
* When tighten the pipe, hold the haxagonal
body.
Torque
wrench
(250mm)
Torque
kg·m
1.8~2.5
3.4~4.2
5.5~6.6
6.6~8.2
Liquid side piping
(Smaller Dia.)
Tubing Cover
Continuous
Torque Torque Torque
wrench wrench wrench
(250mm) (250mm) (250mm)
- When connecting in a downward direction,
knock out the knock-out hole of the base
pan. (refer to figure 2)
<Figure 2>
Knock-out
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.
<Figure 3>
Resin, Clay, Putty or insulating material
(produced locally)
CAUTION
!
Insects or small animals entering the out-
door unit may cause a short circuit in the
electrical box.
Base pan
Liquid side piping
Gas side piping
Connecting wire
Drain hose
Connection pipe