LG Multi V ARUB Series Installation Manual page 56

HR Unit PCB
Method for auto-addressing of valves.
1) Auto addressing for indoor unit
2) Auto pipe detection
3) Manual pipe detection(Execute in case of Auto pipe detection failure)
• Turn off all the indoor units before auto addressing.
If indoor unit is operated, auto addressing would not be completed.
1) Auto addressing for indoor unit
• Wait 3 minutes after turning on the outdoor unit, HR unit,
indoor unit.
• Press SW02M of the outdoor unit main PCB for 5 sec-
onds
• 2~7 minutes are required depending on the number of
indoor units connected.
• The number of the indoor units and HR units connected
is displayed at 7-SEG of the outdoor unit main PCB after
completion of indoor unit addressing and the address of
each indoor unit appears in the window of its own wired
remote control. (Example: CH01, CH02, CH03....CH06)
• Indoor Unit auto addressing is completed
2) Auto pipe detection
• Turn No.1 of SW02M of HR unit PCB off.
• Confirm that the setting of No.2, 3 of SW02M corresponds with the number of indoor units.
• Reset the power of HR unit PCB
• Turn off the No.5 DIP S/W of main unit PCB when outdoor temperature is below 15°C
• Turn on the No.5 DIP S/W of main unit PCB when outdoor temperature is over 15°C
• Reset the power of outdoor unit.
• Wait 3 minuts.
• Press SW01M of the outdoor unit main PCB for 5 Seconds.
• The number of connected HR unit is displayed.
Ex) In case of installing four HR units : 04
• Operated after 88 is displayed on 7-SEG of the outdoor unit main PCB.
• Pipe detection proceed.
• 5~30 minutes are required depending on the number of the indoor units and outdoor temperature.
• The number of the indoor units installed is displayed on 7-SEG of the outdoor unit main PCB for about 1
minute
(For a HR unit, the number of the indoor units connected to each HR unit is displayed.
• '200' is displayed in case of auto pipe detection error, and auto detection is completed after '88' is disap-
peared.
❈ Auto pipe detection function : the function that sets connection relationship automatically between the indoor
unit and HR unit.
56 Outdoor Unit
Main Unit PCB
SW02M
AUTO ADDRESS
7-SEG