LG ARUN096BT2 Installation Manual - Page 78

Vacuum Mode, Static pressure compensation mode

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Test Run Vacuum Mode This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Main PCB SW01S Main PCB SW02B Main PCB SW01V Vacuum mode setting method ODU power reset Master main PCB DIP switch ON ( No.11,14) Press the black button Main PCB (5 sec.) Vacuum mode cancellation method Master main PCB DIP switch OFF( No.11,14) Power reset Vacuum mode cancellation Vacuum mode setting ODU V/V OPEN Main EEV, SC EEV OPEN IDU 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. s 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 method Static pressure compensation mode cancellation method DIP switch setting High static pressure:No. 13 Low static pressure:No.12 DIP switch OFF Power Reset Power Reset Static pressure compensation mode is set Static pressure compensation mode is cancelled 78 Outdoor Unit

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78
Outdoor Unit
Test Run
This function is used for creating vacuum in the system after compressor replacement, ODU parts replace-
ment or IDU addition/replacement.
This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan
discharge of ODU.
■
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
Master main PCB DIP switch ON ( No.11,14)
Vacuum mode setting
ODU V/V OPEN
Main EEV, SC EEV OPEN
IDU EEV OPEN
ODU power reset
Press the black button Main PCB (5 sec.)
Main PCB
SW01S
Main PCB
SW02B
Main PCB
SW01V
ODU operation stops during vacuum mode. Compressor can't operate.
Vacuum mode setting method
Vacuum mode cancellation method
Master main PCB DIP switch OFF( No.11,14)
Power reset
Vacuum mode cancellation
Power Reset
DIP switch setting
High static pressure:No. 13
Low static pressure:No.12
Static pressure compensation mode setting
method
Static pressure compensation mode cancellation
method
DIP switch OFF
Power Reset
Static pressure compensation mode is set
Static pressure compensation mode is cancelled
Caution
Vacuum Mode
Static pressure compensation mode