Fujitsu AUUH18LUAS Service Manual page 136

4. CONTROL AND FUNCTIONS
1. Rotation number control of compressor...................................................04-1
1-1. Cooling operation ...........................................................................................................04-1
1-2. Heating operation ...........................................................................................................04-3
1-3. Dry operation ..................................................................................................................04-4
1-4. Rotation number of compressor at normal start-up ........................................................04-5
1-5. Rotation number of compressor limitation by outdoor temperature ................................04-8
2. Auto changeover operation......................................................................04-11
3. Fan control.................................................................................................04-13
3-1. Indoor fan control..........................................................................................................04-13
3-2. Outdoor fan control.......................................................................................................04-16
4. Louver control ...........................................................................................04-19
4-1. Individual louver control ................................................................................................04-19
4-2. All louver control ...........................................................................................................04-19
4-3. Swing operation............................................................................................................04-20
5. Timer operation control ............................................................................04-21
5-1. →ireless remote control ................................................................................................04-21
5-2. →ired remote control ....................................................................................................04-23
6. Defrost operation control .........................................................................04-26
6-1. Defrost operation in heating operation stopped ............................................................04-28
7. Various control ..........................................................................................04-29
7-1. Auto restart ...................................................................................................................04-29
7-2. MIN. HEAT operation ...................................................................................................04-29
7-3. ECONOM↔ operation ...................................................................................................04-29
7-4. PO→ERFUL operation .................................................................................................04-29
7-5. Fresh air control............................................................................................................04-30
7-6. Compressor preheating ................................................................................................04-30
7-7. External electrical heater control ..................................................................................04-31
7-8. Electronic expansion valve control ...............................................................................04-31
7-9. Drain pump control .......................................................................................................04-32
7-10. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-34
7-11. 4-way valve control.....................................................................................................04-34
7-12. Human sensor for energy saving................................................................................04-34
7-13. Peak cut operation (for 24/30/36 model) ....................................................................04-35
7-14. Unit status monitoring and the detected value indication ...........................................04-35
8. Various protections...................................................................................04-38
8-1. Discharge gas temperature over-rise prevention control ..............................................04-38
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-38
8-3. Current release control .................................................................................................04-39
8-4. Indoor unit fan motor over temperature protection........................................................04-40
8-5. Compressor temperature protection ............................................................................04-40
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