Table Of Contents - Fujitsu ASUH09LPAS Service Manual

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. Limitation of compressor rotation number by outdoor temperature.................................04-6
2. Auto changeover operation........................................................................04-8
3. Fan control.................................................................................................04-10
3-1. Indoor fan control..........................................................................................................04-10
3-2. Outdoor fan control.......................................................................................................04-14
4. Louver control ...........................................................................................04-16
4-1. Horizontal louver control ...............................................................................................04-16
4-2. Adjust the horizontal louver ..........................................................................................04-16
4-3. Swing operation............................................................................................................04-16
5. Timer operation control ............................................................................04-17
5-1. Wireless remote control ................................................................................................04-17
5-2. Wired remote control ....................................................................................................04-19
6. Defrost operation control .........................................................................04-22
6-1. Defrost operation in heating operation stopped ............................................................04-24
7. Various control ..........................................................................................04-25
7-1. Auto restart ...................................................................................................................04-25
7-2. MANUAL AUTO operation............................................................................................04-25
7-3. Forced cooling operation ..............................................................................................04-26
7-4. ECONOMY operation ...................................................................................................04-26
7-5. POWERFUL operation .................................................................................................04-26
7-6. Fresh air control............................................................................................................04-27
7-7. Compressor preheating ................................................................................................04-27
7-8. External electrical heater control ..................................................................................04-27
7-9. Electronic expansion valve control ...............................................................................04-28
7-10. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-28
7-11. 4-way valve control.....................................................................................................04-28
7-12. Unit status monitoring and the detected value indication............................................04-29
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. Cooling pressure over-rise protection ...........................................................................04-32
8-5. Low outdoor temperature protection.............................................................................04-32
8-6. High temperature and high pressure release control ....................................................04-33
CONTENTS