LG MULTI V PLUS II ARUN Série Manuel D'installation page 73

Vacuum Mode
This function is used for creating vacuum in the system after compressor replacement, ODU parts replace-
ment or IDU addition/replacement.
Vacuum mode setting method
Main PCB
SW01S
Main PCB
Master main PCB DIP switch ON ( No.11,14)
SW02B
Main PCB
Press the black button Main PCB (5 sec.)
SW01V
Vacuum mode setting
Main EEV, SC EEV OPEN
Caution
ODU operation stops during vacuum mode. Compressor can't operate.
Static pressure compensation mode
This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan
discharge of ODU.
I Static pressure compensation dip S/W setting method
High static pressure mode (Max. RPM 930) : Master ODU Main PCB SW02B NO.13 Dip S/W
Low static pressure mode (Max. RPM 900) : Master ODU Main PCB SW02B NO.12 Dip S/W
Static pressure compensation mode setting
DIP switch setting
High static pressure:No. 13
Low static pressure:No.12
Power Reset
Static pressure compensation mode is set
ODU power reset
ODU V/V OPEN
IDU EEV OPEN
method
Vacuum mode cancellation method
Master main PCB DIP switch OFF( No.11,14)
Power reset
Vacuum mode cancellation
Static pressure compensation mode cancellation
method
DIP switch OFF
Power Reset
Static pressure compensation mode is cancelled
Installation Manual 73
Test Run