Fujitsu ARXG45KMLA Service Manual page 108

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.......................................................................................................04-11
4. Timer operation control ............................................................................04-13
4-1. →ireless remote control ................................................................................................04-13
4-2. →ired remote control ....................................................................................................04-15
5. Defrost operation control .........................................................................04-18
5-1. Defrost operation in heating operation stopped ............................................................04-19
6. Various control ..........................................................................................04-20
6-1. Auto restart ...................................................................................................................04-20
6-2. 10 °C HEAT operation ..................................................................................................04-20
6-3. ECONOMY operation ...................................................................................................04-20
6-4. Fresh air control............................................................................................................04-20
6-5. Compressor preheating ................................................................................................04-21
6-6. External electrical heater control ..................................................................................04-21
6-7. Electronic expansion valve control ...............................................................................04-21
6-8. Drain pump control .......................................................................................................04-22
6-9. Prevention to restart for 3 minutes (3 minutes st) .........................................................04-25
6-10. 4-way valve control.....................................................................................................04-25
6-11. Peak cut operation .....................................................................................................04-25
7. Various protections...................................................................................04-26
7-1. Discharge gas temperature over-rise prevention control ..............................................04-26
7-2. Anti-freezing control (cooling and dry mode) ................................................................04-26
7-3. Current release control .................................................................................................04-27
7-4. Indoor unit fan motor over temperature protection........................................................04-28
7-5. Compressor temperature protection ............................................................................04-28
7-6. High pressure protection ..............................................................................................04-28
7-7. Low outdoor temperature protection.............................................................................04-28
7-8. High temperature and high pressure release control ....................................................04-29
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