LG ARNU05GL1G2, Service Manual

Page: 42 / 138

- 42 -
Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.11 Pump Out
This function gathers the refrigerant to other ODU and IDU.
Use this function in case of compressor failure, ODU parts defect, leakage.
Close liquid SVC V/V of each unit.
Open gas SVC V/V of each unit.
Power reset after Dip switch setting of ODU
Refer to Dip switch setting page
(General case, Inv. Comp failure case)
All IDU heating operation
Press the red button (SW01C)
Note 1)
Note 2)
Yes
No
Low pressure > 229kpa
IDU, ODU OFF
Power reset after Dip switch off
Pump out completed
Press the red button
(SW01C)
Satisfy low pressure target?
ODU SVC V/V Setting
ODU SVC V/V Setting
[Note]
If low pressure become under 307kPa (blink), close the gas SVC V/V of all ODU immediately.
If low pressure descends below 229 kPa, the system turns off automatically. Close gas SVC V/V immediately.
This function is operating only Heat Pump model.
Caution
1.Use pump out function within guaranteed temperature range
IDU : 10~30°C
ODU : 5~40°C
2. Make certain that IDU doesn't run with thermo off mode during operation
3. Pump out function takes 2~5 min. after compressor start.
Make certain that IDU doesn't run with thermo off mode during operation
(in case low pressure doesn't go down)
Close Close
Liquid Pipe Gas Pipe
Close
Liquid Pipe Gas Pipe
Open
*Current low
pressure
*Current low pressure
under 307kPa (blink)
*Current low
pressure
Function