Preparation Work; Pipe Drawing Out During Single Connection - LG Multi V PRHR042A Installation Manual

• Keep the 40m(131ft) distance from the first branch to the farthest
indoor.
1) under 40m(131ft)
Indoor
Y branch
Unit
Keep the sum of indoor capacity under 58kW(192 kBtu/h).
1) under 40m(131ft)
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
Keep the sum of indoor capacity under 58kW(192 kBtu/h).
For Heat Pump System Installation

Preparation Work

- Use Knock Outs of Cover of the outdoor unit for Front/Right or Rear
pipe drawing outs.
Removal Area for Liquid/Gas pipe
front or right 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
connecting wires using Knock Outs.
Indoor Indoor Indoor
Unit Unit Unit
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
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 all the pipes are locked.
- Extract remaining refrigerant or air inside using the service port.
- Remove the leakage prevention cap
Leakage Prevention Cap

Pipe Drawing Out during Single 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.
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.
21
Refrigerant
Charging Port
Service Port
Not used
(keep closed)
Gas pipe
Liquid pipe