Fujitsu ABHG54KRTA Service Manual page 96

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 ..............................................04-4
2. Auto changeover operation........................................................................04-6
3. Fan control...................................................................................................04-8
3-1. Indoor fan control............................................................................................................04-8
3-2. Outdoor fan control.......................................................................................................04-11
4. Louver control ...........................................................................................04-12
4-1. Vertical airflow direction louver control .........................................................................04-12
4-2. Swing operation............................................................................................................04-12
5. Timer operation control ............................................................................04-13
5-1. Wireless remote control ................................................................................................04-13
5-2. Wired remote control ....................................................................................................04-15
6. Defrost operation control .........................................................................04-18
6-1. Defrost operation in heating operation stopped ............................................................04-19
7. Various control ..........................................................................................04-20
7-1. Auto restart ...................................................................................................................04-20
7-2. 10 °C HEAT operation ..................................................................................................04-20
7-3. ECONOMY operation ...................................................................................................04-20
7-4. POWERFUL operation .................................................................................................04-20
7-5. Fresh air control............................................................................................................04-21
7-6. Compressor preheating ................................................................................................04-21
7-7. External electrical heater control ..................................................................................04-21
7-8. Electronic expansion valve control ...............................................................................04-22
7-9. Drain pump control .......................................................................................................04-23
7-10. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-25
7-11. 4-way valve control.....................................................................................................04-25
7-12. Human sensor for energy saving................................................................................04-25
7-13. Peak cut operation .....................................................................................................04-25
8. Various protections...................................................................................04-26
8-1. Discharge gas temperature over-rise prevention control ..............................................04-26
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-26
8-3. Current release control .................................................................................................04-27
8-4. Indoor unit fan motor over temperature protection........................................................04-27
8-5. Compressor temperature protection ............................................................................04-27
8-6. High pressure protection ..............................................................................................04-28
8-7. Low outdoor temperature protection.............................................................................04-28
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