LG MULTI V Service Manual page 73

3. SW01C (Rotary S/W for addressing HR unit)
Must be set to '0' when installing only one HR unit.
When installing multiple HR units, address the HR units with sequentially increasing numbers starting from '0'.
Ex) Installation of 3 HR units
A B
4. SW01B/SW01C/SW01E/SW02B (Dip S/W and push S/W for Manual pipe detection)
- Set the address of the valve of the HR unit to the central control address of the connected indoor unit.
- SW01E: selection of the valve to address
SW02B: increase in the digit of 10 of valve address
SW01B: increase in the last digit of valve address
SW01C: Manual addressing of zoning indoor units (use for Zoning setting)
- Prerequisite for Manual pipe detection : central control address of each indoor unit must be preset differently
at its wired remote control.
A B
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HR Unit PCB
* Master Only
A B