Part 3 Control Logic - LG Single "A" Service Manual

3. Control logic
1. Compressor ......................................................................................................................52
2. Step(frequency) control ...................................................................................................54
3. Reversing valve operaton ................................................................................................58
4. Discharge pipe control.....................................................................................................59
5. Input Current Control .......................................................................................................60
6. Outdoor Fan Control ........................................................................................................61
7. Defrost Control .................................................................................................................63
8. LEV Control .......................................................................................................................64
9. Oil restoration operation..................................................................................................70
10. Compressor warm-up control logic ..............................................................................70
11. Heat sink control ............................................................................................................70
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 51 -

Part 3 Control logic

LGE Internal Use Only