LG ARUM080LTE5 Engineering Product Data Book page 761

Multi V 5
8. Electrical Wiring
■ Manual pipe detection
1. Enter the central control address into each indoor unit using its wired remote controller.
2. Turn No.1 dip switch of SW02E of HR unit PCB on.
3. Reset the power of HR unit PCB.
4. On the HR unit PCB, manually set address of each valve of the HR unit to the central control address of the
indoor unit connected to the valve.
5. Reset the power of outdoor unit PCB.
6. The number of the indoor unit installed is displayed after about 5 minutes.
Ex) HR → The number of the indoor
7. Reset the power of outdoor unit PCB, HR unit.
8. Manual pipe detection is completed
CAUTION
• In case that central controller is not installed, firstly set up central controller's setting to make address
setting of indoor units.
• In case that central controller is installed, please set central control address of indoor units by using
wired remote controller.
• HR units's manual pipe address is set by the central control address of indoor units.
• Address of valve which is not connected with indoor unit should be set differently with the address of a
valve which is indoor unit connected.
(If address is overlapped, valve will not work properly)
• If there occurs some error during pipe detection process, it means pipe detection process is not
properly finished.
• During 5 minutes after pipe detection process is completed, do not turn off the main outdoor unit's PCB
to save the result of pipe detection automatically.
 Flow chart of manual addressing for pipe detection
Execute in case of Auto pipe detection
failure
Turn No.1 of SW02E of HR unit PCB on.
Reset the power of HR unit PCB.
Input the central control address at
each indoor unit using wired remote
controller.
Set the address of each valve manually
by referring indoor unit's central control
address connected with.
Reset the power of outdoor unit PCB.
Note
If you need to more information of Addressing method, please refer to the Installation Manual.
50
Wait for about 5 minutes.
The number of the indoor units connected
is displayed.
Ex)HR The number of connected indoor
units
Is the number
of indoor units connected with the
outdoor unit and displayed number
equal?
YES
Completion of manual pipe detection process
Installation of Outdoor Units
NO
Check the central control address of
indoor units and HR unit.
Make sure that reset the outdoor
unit's power after setting the
central control address of indoor
units.