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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Function
4.6 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 valve.
Open gas SVC valve.
Power reset after Dip switch setting of ODU
General case: No.10,14 ON
All IDU heating operation
Press the black button
Note 1)
Note 2)
Main PCB
SW02V
SW01V
Yes
No
Low pressure > 229kpa
IDU, ODU OFF
Power reset after Dip switch No.10, 14 OFF
Pump out completed
Close gas SVC valve
Press the black button
Satisfy low pressure target?
Main PCB
SW01B
SW02B
Main PCB
SW01V
ODU SVC valve Setting
ODU SVC valve Setting
Note
1. If is displayed, close gas SVC valve of all ODU immediately.
2.
If low pressure descends below 229 kPa (33.2psi), the system turns off automatically. Close gas SVC valve immediately.
Caution
1.Use pump out function within guaranteed temperature range
IDU : 10~30°C (50~86°F)
ODU : 5~40°C (41~104°F)
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)
4. Press black+red button during operation to end pump out.(IDU,ODU OFF)
Close Open
<Liquid pipe>
<Gas pipe>
Close Close
<Liquid pipe>
<Gas pipe>