Connection Of Piping - Outdoor - LG UBN24R Owner's Manual

CONNECTING PIPES
24

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
Ø 6.35 1/4
Ø 9.52 3/8
Ø 12.7 1/2
Ø 15.88 5/8
* When tighten the pipe, hold the haxagonal
body.
Outdoor unit
Torque wrench
- When connecting in a downward direction,
knock out the knock-out hole of the base
pan. (refer to figure 2)
<Figure 2>
Knock-out
Torque
wrench
(250mm)
Torque
kg·m
1.8~2.5
3.4~4.2
5.5~6.6
6.6~8.2
Gas side piping
(Bigger Dia.)
Liquid side piping
(Smaller Dia.)
Tubing Cover
Continuous
Torque Torque Torque
wrench wrench wrench
(250 mm) (250mm) (250mm)
Base pan
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
outdoor unit may cause a short circuit in
the electrical box.
CAUTION
!
(for R32)
• A brazed, welded, or mechanical
connection shall be made before opening
the valves to permit refrigerant to flow
between the refrigerating system parts.
• When flared joints are reused indoors,
the flare part shall be re-fabricated.
• When mechanical connectors are
reused indoors, sealing parts shall be
renewed.
Liquid side piping
Gas side piping
Connecting wire
Drain hose
Connection pipe