LG MULTI V S ARUB060GSS4 - PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT; Pipe Drawing Methods; Preparation for Pipe Work; Pipe Work Cautions

15
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
(0.284lbs/in
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.
Bottom Side Pipe
Draw Out
Rear Side Pipe
Draw Out
Front Pipe
Draw Out
Right Side Pipe
Draw Out
Refrigerant Pipe
Regulator
Nitrogen
Taping
Valve
Nitrogen
Nitrogen
Direction
Direction
Nitrogen
Direction
<High Pressure Gas pipe> <Low Pressure Gas pipe>
<Liquid pipe>
Wet towel
Removal Area for Liquid/Gas
pipe bottom side connections.
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
Service Port
Refrigerant
Charging Port
Liquid pipe
High Pressure gas pipe
Leakage prevention cap
Low Pressure gas pipe
Pipe Knock Out for
Liquid/Gas pipes
Method of drawing out pipes on the rear side
- Proceed with the pipe work as shown in the below figure for rear
side pie drawing out.
Pipe Knock Out for Liquid/Gas pipes
※Pictures may differ depending on the model.
Pipe Drawing Out during Single / Series connection
Method of drawing out pipes on the front side and right side
- Proceed with the pipe work as shown in the below figure for front
side and right side pipe drawing out.
Preparation Work
- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or
Bottom pipe drawing outs.
- Use the wet towel as shown in the below figure before welding
PIPE CONNECTIONS BETWEEN
INDOOR AND OUTDOOR UNIT
1,MFL69717904,영영 18. 8. 29. 영영 2:49 Page 15