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Only for training and service purposes
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Part 3 Control logic
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