LG Multi V

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HR Unit PCB
3) Setting the Valve group.
No.1, 2 valve
/
No.3, 4 valve
control
No.3, 4 valve
control
Dip switch setting
No.2, 3 valve
control
No.1, 2 valve
control
Not control
Example
Indoor unit
Indoor unit
Large capacity indoor unit
Indoor unit
Indoor unit
Large capacity indoor unit
Indoor unit
Indoor unit
Large capacity indoor unit
Large capacity indoor unit
Large capacity indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
Models
ARBLB03321
413(16-1/4)
390(15-11/32)
I.D19.05(3/4)
I.D19.05(3/4)
I.D19.05(3/4)
I.D12.7(1/2)
I.D12.7(1/2)
I.D12.7(1/2)
I.D12.7(1/2)
I.D12.7
(1/2)
74
(2-29/32)
70(2-3/4)
I.D15.88(5/8)
I.D15.88(5/8)
I.D25.4(1)
I.D25.4(1)
O.D25.4(1)
80(3-5/32)
110(4-11/32)
332(13-1/16)
321(12-5/8)
83
(3-9/32)
1
2
3
3
O.D19.05(3/4)
O.D19.05(3/4)
1 2
I.D22.2(7/8)
I.D22.2(7/8)
I.D22.2(7/8)
I.D6.35(1/4)
I.D6.35(1/4)
I.D28.58(1-1/8)
I.D9.52(3/8)
I.D9.52(3/8)
I.D9.52(3/8)
Low Pressure Gas Pipe Liquid pipe
] Y branch pipe
* For more information, refer accessory installation manual.
[Unit:mm(inch)]
Note:
If the large capacity indoor units are installed, below Y branch pipe should be used