Fujitsu ASUH18LMAS 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 ..................................................................................................................04-3
1-4. Rotation number of compressor at normal start-up ........................................................04-4
1-5. Rotation number of compressor 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. Horizontal airflow direction louver control ....................................................................04-14
4-3. Swing operation............................................................................................................04-15
5. Timer operation control ............................................................................04-16
5-1. →ireless remote control ................................................................................................04-16
5-2. →ired remote control ....................................................................................................04-18
6. Defrost operation control .........................................................................04-21
6-1. Defrost operation in heating operation stopped ............................................................04-22
7. Various control ..........................................................................................04-23
7-1. Auto restart ...................................................................................................................04-23
7-2. MANUAL AUTO operation............................................................................................04-23
7-3. Forced cooling operation ..............................................................................................04-24
7-4. MIN. HEAT operation ...................................................................................................04-24
7-5. ECONOM↔ operation ...................................................................................................04-24
7-6. PO→ERFUL operation .................................................................................................04-25
7-7. Fresh air control............................................................................................................04-25
7-8. Compressor preheating ................................................................................................04-25
7-9. External electrical heater control ..................................................................................04-26
7-10. Electronic expansion valve control .............................................................................04-26
7-11. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-26
7-12. 4-way valve control.....................................................................................................04-26
7-13. Peak cut operation .....................................................................................................04-27
7-14. Unit status monitoring and the detected value indication............................................04-27
8. Various protections...................................................................................04-31
8-1. Discharge gas temperature over-rise prevention control ..............................................04-31
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-31
8-3. Current release control .................................................................................................04-32
8-4. Compressor temperature protection ............................................................................04-32
8-5. High pressure protection ..............................................................................................04-32
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