Fujitsu General ARXG45KHTB Service Manual page 94

4. CONTROL AND FUNCTIONS
1. Rotation number control of compressor...................................................04-1
1-1. Cooling operation ...........................................................................................................04-1
1-2. Heating operation ...........................................................................................................04-2
1-3. Dry operation ..................................................................................................................04-2
1-4. Rotation number of compressor at normal start-up .......................................................04-3
1-5. Rotation number of compressor 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.......................................................................................................04-10
4. Timer operation control ............................................................................04-11
4-1. Wireless remote control ................................................................................................04-11
4-2. Wired remote control ....................................................................................................04-13
5. Defrost operation control .........................................................................04-16
5-1. Defrost operation in heating operation stopped ............................................................04-17
6. Various control ..........................................................................................04-18
6-1. Auto restart ...................................................................................................................04-18
6-2. 10 °C HEAT operation ..................................................................................................04-18
6-3. ECONOMY operation ...................................................................................................04-18
6-4. Fresh air control............................................................................................................04-18
6-5. Compressor preheating ................................................................................................04-19
6-6. External electrical heater control ..................................................................................04-19
6-7. Electronic expansion valve control ...............................................................................04-19
6-8. Drain pump control .......................................................................................................04-20
6-9. Prevention to restart for 3 minutes (3 minutes st) .........................................................04-22
6-10. 4-way valve control.....................................................................................................04-22
6-11. Peak cut operation .....................................................................................................04-22
6-12. Outdoor unit low noise operation ................................................................................04-23
6-13. Unit status monitoring and the detected value indication ...........................................04-24
7. Various protections...................................................................................04-28
7-1. Discharge gas temperature over-rise prevention control ..............................................04-28
7-2. Anti-freezing control (cooling and dry mode) ................................................................04-28
7-3. Current release control .................................................................................................04-29
7-4. Indoor unit fan motor over temperature protection........................................................04-29
7-5. Compressor temperature protection ............................................................................04-30
7-6. High pressure protection ..............................................................................................04-30
7-7. Low outdoor temperature protection.............................................................................04-30
7-8. High temperature and high pressure release control ....................................................04-31
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