LG Multi V PRHR033 Installation Manual page 29

3rd main pipe distribution
Slave
Master
2nd
1st
Vertical Distribution
- Ensure that the branch pipes are attached vertically.
Slave
Slave
Master
The others
Slave
Master
3rd
Master
Slave
Master
Vacuum Mode
This function is used for creating vacuum in the system after
compressor replacement, ODU parts replacement or IDU
addition/replacement.
Vacuum mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using '▶', '◀' Button :
"SVC" Push the '●' button
Select the Function using '▶', '◀' Button :
"Se3" Push the '●' button
Start the vacuum mode : "VACC"
ODU Valve open
ODU EEV open
IDU EEV open
HR unit valve open, SC EEV open
Vacuum mode
Vacuum mode off method
DIP switch off and push the reset button on Master unit PCB
CAUTION
!
ODU operation stops during vacuum mode. Compressor can't
operate.
Header
DIP-SW01
7-Segment
SW04C (X : cancel)
SW03C ( : forward)
SW02C ( : backward)
SW01C ( : Confirm /
Automatic Addressing)
SW01D (reset)
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