LG Multi V ARWM072CAS5 Service Manual page 76

HR Unit PCB
2) Zoning setting
Note:
Use the Zoning Control when install two or more indoor units at 1 branch of HR Unit. The indoor units controlled by
Zoning Control can be selected collectively as the cooling/heating mode.
ex) Manual pipe detection of Valve #5 with three zoning indoor units, #6 without zoning unit.
Slave
ON
OFF
SW #1 On : Select Valve #5
Slave
SW01C
SW02B
After selecting No.3 zoning
indoor unit, input the central
control address of indoor unit.
Slave
ON
OFF
SW #2 On : Select Valve #6
Slave
SW01E
After selecting No.1 zoning
indoor unit, input the central
control address of indoor unit.
Slave
SW01B
Setting SW01C to '0'
Slave
SW01E
Input the central control
address of Indoor unit
0
SW01C
SW02B SW01B
0
SW01C
SW02B SW01B
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Slave
SW01C
SW02B SW01B
After selecting No.2 zoning
indoor unit, input the central
control address of indoor unit.
Slave
ON
OFF
SW01E
SW #1 Off : Finish Valve #5
Slave
ON
OFF
SW01E
SW #2 Off : Finish Valve #6