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ENGLISH
- Pipe connections can be done on the front side or on the side accord-
ing to the installation environments.
- Be sure to let 0.2kgf/cm
2
Nitrogen flow in the pipe when welding.
- If Nitrogen was not flown during welding, many oxidized membranes
may form inside the pipe and disturb the normal operations of valves
and condensers.
CAUTION
• Do not give damage to the pipe/base during the Knock Out
work.
• Proceed to pipe work after removing burr after Knock Out work.
• Perform sleeve work to prevent damage to the wire when con-
necting wires using knock Outs.
!
Remove leakage prevention cap
• Remove the leakage prevention cap attached to the outdoor unit
service valve before pipe work.
• Proceed the leakage prevention cap removal as follows:
- Verify whether the liquid/gas pipes are locked.
- Extract remaining refrigerant or air inside using the service port.
- Remove the leakage prevention cap
Method of drawing out pipes on the bottom side
- Drawing out common pipe through side panel
Left Side Pipe
Draw Out
Front Pipe Draw Out
Right Side Pipe
Draw Out
R
efrigerant Pipe
R
egulator
N
itrogen
Taping
V
alve
NitrogenNitrogen
D
irection Direction
Nitrogen
D
irection
Removal Area for Liquid/Gas pipe
bottom side connections.
Gas pipe
Liquid pipe
Service Port
Refrigerant Charging Port
Leakage Prevention Cap
Pipe Knock Out for
Liquid/Gas pipes
Liquid pipe Gas pipe
Remove only liquid/gas pipe Knock out
Liquid pipe Gas pipe
Remove only liquid/gas pipe Knock out
P
ipe Drawing Out during Single / Series connection
Method of drawing out pipes on the front side
- Proceed with the pipe work as shown in the below figure for front
side pipe drawing out.
Preparation Work
- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or Bot-
tom pipe drawing outs.
PIPE CONNECTIONS BETWEEN
INDOOR AND OUTDOOR UNIT
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