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Section 6 : Processes and Functions ............................................... VI - 1
1. Compressor Control ............................................................................................ VI - 2
2. Protection Controls ............................................................................................. VI - 3
3. Fan Control ......................................................................................................... VI - 5
4. Outdoor Electronic Expansion Valve...................................................................VI - 5
5. Solenoid Valve Control ....................................................................................... VI - 6
6. Hot Gas Defrosting Control .................................................................................VI - 7
7. Self-Separator Oil Recovery Control ...................................................................VI - 8
8. Inter-Outdoor Unit Oil Recovery Control .............................................................VI - 8
9. Inter-Refrigerant System Oil Recovery Control .................................................. VI - 9
10. 4-way Valve Adjustment Valve............................................................................VI - 9
11. Refrigerant Movement Control ............................................................................VI - 9
12. Backup Operation ............................................................................................... VI - 10
13. Room Temperature Control ................................................................................ VI - 11
14. Auto. Mode for Automatic Heating/Cooling Switching ........................................ VI - 12
15. Heating Preparations .......................................................................................... VI - 13
16. Dehumidifying Control......................................................................................... VI - 14
17. Automatic Fan Speed Control .............................................................................VI - 14
18. Auto-flap Control ................................................................................................. VI - 15
19. Drain Pump Control ............................................................................................ VI - 16
20. Indoor Electronic Expansion Valve .....................................................................VI - 16
21. Discharge Temperature Control (Only for U, D Type) ........................................ VI - 17
22. Automatic Restart Function after Power Failure................................................. VI - 17
23. Filter Sign............................................................................................................ VI - 17
Section 7 : Replacement of Main Units............................................ VII - 1
1. Compressors ..................................................................................................... VII - 2
2. Indoor Unit ......................................................................................................... VII - 17
Section 8 : Electrical Data................................................................ VIII - 1
1. Outdoor Unit ..................................................................................................... VIII - 2
2. Indoor Unit ........................................................................................................ VIII - 10
Section 9 : Appendix .......................................................................... IX - 1
1. P.C.B. illustrations............................................................................................... IX - 2
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