LG MULTI V Service Manual page 58

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
* For more information, refer accessory installation manual.
Models
ARBLB03321
Dip switch setting
/
Low Pressure Gas Pipe
I.D22.2(7/8)
I.D15.88(5/8)
I.D25.4(1) I.D19.05(3/4)
1
390(15-11/32)
413(16-1/4)
I.D22.2(7/8)
I.D28.58(1-1/8)
O.D19.05(3/4)
O.D25.4(1)
3
80(3-5/32)
70(2-3/4)
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
I.D19.05(3/4)
I.D12.7(1/2)
2
I.D9.52(3/8)
I.D12.7
83
I.D19.05(3/4)
(1/2)
I.D15.88(5/8) (3-9/32)
I.D12.7(1/2)
3
I.D22.2(7/8)
O.D19.05(3/4)
I.D25.4(1)
1 2
110(4-11/32)
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Example
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Large capacity indoor unit
Indoor unit
Large capacity indoor unit
Indoor unit
Large capacity indoor unit
Indoor unit
Indoor unit
Large capacity indoor unit
Large capacity indoor unit
[Unit:mm(inch)]
Liquid pipe
I.D12.7(1/2)
I.D9.52(3/8)
I.D6.35(1/4)
I.D12.7(1/2)
74
I.D9.52(3/8)
I.D6.35(1/4) (2-29/32)
321(12-5/8)
332(13-1/16)