Preparation Work; Pipe Drawing Out During Single / Series Connection - LG MULTI V 5 ARUM160LTE5 Installation Manual

20
For Heat Recovery System Installation

Preparation Work

- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or
Bottom pipe drawing outs.
Knock Out for
Liquid pipe
Removal area for pipes Knock Out for
bottom side connections. communication cable
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.
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
Liquid pipe
Low Pressure
Gas pipe
Leakage
Prevention Cap

Pipe 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.
Liquid pipe
Knock Out for low
pressure gas pipe
Knock Out for high
pressure gas pipe
Knock Out for
power supply cable
Chassis
A
B
C
HP
A(mm) 9.52(3/8)
B(mm) 19.05(3/4) 22.2(7/8)
C(mm) 19.05(3/4) 19.05(3/4) 19.05(3/4) 22.2(7/8)
High Pressure
* Elbow is Field supplied
Gas pipe
* Elbow size are same as Pipe 'A', 'B', 'C'.
Method of drawing out pipes on the bottom side
- Drawing out common pipe through side panel
Remove Knock Out for the bottom side of Liquid / Gas pipe
High Pressure
Gas pipe
Low Pressure Gas pipe
Liquid pipe
High Pressure Gas pipe
Low Pressure Gas pipe
UXA
8 10 12 14/16
9.52(3/8) 12.7(1/2) 12.7(1/2) 15.88(5/8) 15.88(5/8)
28.58 28.58
(1-1/8) (1-1/8)
Liquid pipe Low Pressure Gas pipe
UXB
18/20/22 24/26
28.58 34.9
(1-1/8) (1-3/8)
28.58
22.2(7/8)
(1-1/8)
High Pressure Gas pipe