Fujitsu ABYG36KRTA Service Manual page 104

4. CONTROL AND FUNCTIONS
1. Compressor frequency control..................................................................04-1
1-1. Cooling operation ...........................................................................................................04-1
1-2. Heating operation ...........................................................................................................04-2
1-3. Dry operation ..................................................................................................................04-2
1-4. Compressor frequency at normal start-up ......................................................................04-3
1-5. Compressor frequency limitation by outdoor temperature ..............................................04-5
2. Auto changeover operation........................................................................04-7
3. Fan control...................................................................................................04-9
3-1. Indoor fan control............................................................................................................04-9
3-2. Outdoor fan control.......................................................................................................04-12
4. Louver control ...........................................................................................04-14
4-1. Vertical airflow direction louver control .........................................................................04-14
4-2. Swing operation............................................................................................................04-14
5. Timer operation control ............................................................................04-15
5-1. Wireless remote control ................................................................................................04-15
5-2. Wired remote control ....................................................................................................04-17
6. Defrost operation control .........................................................................04-20
6-1. Defrost operation in heating operation stopped ............................................................04-21
7. Various control ..........................................................................................04-22
7-1. Auto restart ...................................................................................................................04-22
7-2. 10 °C HEAT operation ..................................................................................................04-22
7-3. ECONOMY operation ...................................................................................................04-22
7-4. POWERFUL operation .................................................................................................04-22
7-5. Fresh air control............................................................................................................04-23
7-6. Compressor preheating ................................................................................................04-23
7-7. External electrical heater control ..................................................................................04-23
7-8. Electronic expansion valve control ...............................................................................04-24
7-9. Drain pump control .......................................................................................................04-25
7-10. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-27
7-11. 4-way valve control.....................................................................................................04-27
7-12. Human sensor for energy saving................................................................................04-27
7-13. Peak cut operation .....................................................................................................04-27
8. Various protections...................................................................................04-28
8-1. Discharge gas temperature over-rise prevention control ..............................................04-28
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-28
8-3. Current release control .................................................................................................04-29
8-4. Indoor unit fan motor over temperature protection........................................................04-29
8-5. Compressor temperature protection ............................................................................04-30
8-6. High pressure protection ..............................................................................................04-30
8-7. Low outdoor temperature protection.............................................................................04-30
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