LG Single "A" - Part 3 Control Logic

- 31 -
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 3 Control logic
3. Control logic
1. Compressor ......................................................................................................................32
2. Step(frequency) control ...................................................................................................34
3. Reversing valve operaton................................................................................................37
4. Discharge pipe control.....................................................................................................38
5. Input Current Control .......................................................................................................39
6. Outdoor Fan Control ........................................................................................................41
7. Defrost Control .................................................................................................................43
8. LEV Control.......................................................................................................................44
9. Oil restoration operation..................................................................................................50
10. Compressor warm-up control logic..............................................................................50
11. Heat sink control ............................................................................................................51