Vacuum Mode; Static Pressure Compensation Mode - LG MULTI V IV ARNU07GTU 2 Series Service Manual

Function Function

4.14 Vacuum Mode

This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement
or IDU addition/replacement.
CAUTION
ODU operation stops during vacuum mode. Compressor can't operate.

4.15 Static pressure compensation mode

This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement
or IDU addition/replacement.
Static pressure compensation mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using
Push the
'●'
Select the Function using
Push the
'●'
Select the Option using
Push the
'●'
Start the Static pressure compensation mode :
Save the selected option value in EEPROM
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Only for training and service purposes
Vacuum mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using
' ', ' '
Push the button
'●'
Select the Function using
Push the button
'●'
Start the vacuum mode : "VACC"
ODU V/V open
ODU EEV open
IDU EEV open
Vacuum mode cancellation method
Push the reset button on Master unit PCB
Button : "Func"
' ', ' '
button
Button : "Fn2"
' ', ' '
button
Button : : "op1~op3"
' ', ' '
button
Button : "SVC"
Button : : "Se3"
' ', ' '
FAN Maximum RPM of each step
Max. RPM
- 46 -
Capacity 8~12HP 14~20HP
Standard 730
Step1 760
Step2 780
Step3 800
LGE Internal Use Only
950
1020
1050
1130