LG MULTI V PRHR022 Installation Manual page 16

INSTALLATION
16
4) Setting the Valve Group
Not control
No.1, 2 Valve
Control
No.2, 3 Valve
Control
No.3, 4 Valve
Control
No.1, 2 Valve
/
No.3, 4 Valve
Control
NOTE
!
If the large capacity indoor units are installed, below Y branch pipe should be used.
❈ Y branch pipe
Models Low Pressure Gas Pipe
I.D22.2
I.D25.4
I.D19.05
1
ARBLB03321
I.D22.2
O.D19.05
3
70
DIP S/W setting
I.D19.05
I.D15.88
I.D12.7
2 I.D9.52
I.D19.05
I.D15.88 I.D12.7 83
I.D12.7
390
3
413
I.D22.2
I.D28.58
O.D25.4 O.D19.05
I.D25.4
1 2
80 110
Example
Indoor Unit
4
Indoor Unit
3
2 Indoor Unit
1
Indoor Unit
Indoor Unit
4
Indoor Unit
3
2
Large capacity indoor unit
1
Indoor Unit
4
3 Large capacity indoor unit
2
Indoor Unit
1
Large capacity indoor unit
4
3
Indoor Unit
2
Indoor Unit
1
Large capacity indoor unit
4
3
Large capacity indoor unit
2
1
Liquid pipe High Pressure Gas Pipe
I.D19.05
I.D12.7
I.D9.52(3/8)
I.D6.35
I.D12.7
I.D9.52 I.D6.35
74
321
332
O.D15.88
3
[Unit : mm]
I.D19.05
I.D22.2
I.D22.2
I.D15.88
2
I.D19.05
I.D15.88 96
I.D25.4
I.D22.2
421
3
444
O.D15.88
I.D12.7
I.D12.7
I.D9.52
2
70
110