Refrigerant Piping - LG ARUN50LH2A Installation Manual

Refrigerant Piping

U3 Chassis
■ Connecting the pipes to the outdoor unit
• Braze suitable field piping with service valve of gas pipe.
CAUTION
Take care so that there is no thermal damage on the
service valves of the outdoor unit.
(Especially packing part of service port.) Wrap the
service valve with a wet towel when brazing it as
shown figure above.
■ Possible direction for field piping
• The installation piping is connectable in four
directions.(refer to figure 1)
• When connecting in a downward direction, knock out
the knockout hole of the base pan.
(refer to figure2, figure3)
<Figure 1>
Forward
<Figure 2>
Knock-out
<Figure 3>
Backward
Downward
Sideways
Base pan
Pipe knock
out during the
ground piping.
>Liquid pipe>
■
Preventing foreign objects from
entering (Figure 4)
• Plug the pipe through-holes with putty or insulation
material(procured locally)to stop up all gaps,as
shown in the figure 3.
• Insects or small animals entering the outdoor unit
may cause a short circuit in the electrical box.
<Figure 4>
Putty or insulating material
(produced locally)
CAUTION
• You should not dame pipe/base during the work of
pipe knock out.
• Operate piping work removing burr after pipe knock
out.
Refrigerant Piping
Wet towel
>Gas pipe>
Liquid side piping
(Smaller Dia.)
Gas side piping
(Bigger Dia.)
Connecting wire
Drain hose
Connection pipe
Installation Manual 19