LG ARUN038GS2 Installation Manual page 61

Flow chart of auto addressing for pipe detection
Confirmation of indoor unit address setting
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
Confirm the No.5 DIP S/W of SW03M of
outdoor PCB
Outdoor temperature is over 15 C(86 F) : ON
Outdoor temperature is below 15 C(86 F) : OFF
In case of changing SW03M S/W of
outdoor unit, reset the power of outdoor
unit main PCB
Wait for 3 minutes
Press SW01V of the outdoor unit main PCB
for 5 seconds
88' is displayed on 7-SEG of the outdoor
unit main PCB
It is possible to be generated mode changing noise of
heating and cooling which is normal.
There is no mode changing noise at normal operation.
Outdoor unit is operated for 5~30 minues.
Is the pipe
setting condition
satisfied during the operation of
indoor unit?
YES
The number of indoor units detected is
displayed for 30 seconds on the outdoor
unit PCB after outdoor unit stopped
Are the number
of indoor units connected to the
outdoor unit wiring and displayed
one equal?
YES
Completion of auto pipe detection
HR Unit PCB
NO
Display error on outdoor unit PCB
Display error on HR unit PCB
Outdoor unit PCB : HR HR unit
number Valve number
HR unit : '200'
Check the HR unit and indoor unit
NO
Pipe detection error occur after 30
seconds.
Check the installation of pipe of
outdoor, indoor, HR unit
Retry auto pipe detection after
checking trouble
Incompletion of auto pipe detection
Installation Manual 61