LG ARUN038GS2 Installation Manual page 56

HR Unit PCB
3) 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
ARBLN03321
56 Outdoor Unit
DIP S/W setting
Gas Pipe
I.D19.05(3/4)
I.D22.2(7/8)
I.D25.4(1)
I.D28.58(1-1/8)
O.D25.4(1)
O.D19.05(3/4)
I.D22.2(7/8)
I.D25.4(1)
I.D22.2(7/8)
4
2
1
4
2
1
4
2
1
4
2
1
4
2
1
I.D19.05(3/4)
I.D15.88(5/8)
I.D12.7(1/2)
I.D12.7(1/2)
I.D15.88(5/8) I.D12.7(1/2)
I.D19.05(3/4)
O.D19.05(3/4)
Example
Indoor Unit
3 Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
3
Indoor Unit
Large capacity indoor unit
Indoor Unit
3
Large capacity indoor unit
Indoor Unit
Large capacity indoor unit
3
Indoor Unit
Indoor Unit
Large capacity indoor unit
3
Large capacity indoor unit
[Unit:mm(inch)]
Liquid pipe
I.D9.52(3/8)
I.D9.52(3/8)
I.D12.7(1/2)
I.D9.52(3/8)
I.D12.7(1/2)
I.D6.35(1/4)
I.D6.35(1/4)