LG B70AWYN985, Installation Manual, Page: 23 / 54

PIPE CONNECTION
ENGLISH
2
3
Preparation Work for piping
- Use Knock Outs of Base Pan of the outdoor
unit for Left/Right or Bottom pipe drawing
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:
1. Verify whether the liquid/gas/common
pipes are locked.
2. Extract remaining refrigerant or air inside
using the service port.
3. Remove the leakage prevention cap
Method of pipe cap work during the installa-
tion of single outdoor unit
1. Remove rubber cap inserted in the com-
mon pipe.
2. Wrap the common pipe service valve with
wet towel.
3. Insert the pipe cap provided into the com-
mon pipe.
4. Place high/low pressure flare nut cap under the
pipe cap so that the pipe cap does not move.
5. Weld the pipe cap.
h
If not wrapped with a wet towel, there
may be damages inside the valve.
h
If the unit is operated without pipe cap
work, there may be abnormality in the
cycle caused by refrigerant leakage.
Removal Area for Liquid/Gas pipe
bottom side connections.
• 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 connecting wires
using knock Outs.
CAUTION
!
Liquid pipe
Gas pipe
Pipe Cap