Fujitsu AOYG54KRTA - Control and Functions

CONTENTS
4. CONTROL AND FUNCTIONS
1. Compressor frequency control..................................................................04-1
1-1. Cooling operation ...........................................................................................................04-1
1-2. Heating operation ...........................................................................................................04-3
1-3. Dry operation..................................................................................................................04-3
1-4. Compressor frequency at normal start-up ......................................................................04-4
1-5. Compressor frequency limitation 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.......................................................................................................04-13
4. Louver control ...........................................................................................04-15
4-1. Individual louver control................................................................................................04-15
4-2. All louver control ...........................................................................................................04-15
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 ............................................................04-23
7. Various control..........................................................................................04-24
7-1. Auto restart...................................................................................................................04-24
7-2. 10 °C HEAT operation..................................................................................................04-24
7-3. ECONOMY operation ...................................................................................................04-24
7-4. Fresh air control............................................................................................................04-24
7-5. Compressor preheating ................................................................................................04-25
7-6. External electrical heater control ..................................................................................04-25
7-7. Electronic expansion valve control ...............................................................................04-25
7-8. Drain pump control .......................................................................................................04-26
7-9. Prevention to restart for 3 minutes (3 minutes st) .........................................................04-28
7-10. 4-way valve control.....................................................................................................04-28
7-11. Human sensor for energy saving................................................................................04-28
7-12. Peak cut operation .....................................................................................................04-28
7-13. Outdoor unit low noise operation ................................................................................04-29
8. Various protections...................................................................................04-30
8-1. Discharge gas temperature over-rise prevention control ..............................................04-30
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-30
8-3. Current release control .................................................................................................04-31
8-4. Indoor unit fan motor over temperature protection........................................................04-32
8-5. Compressor temperature protection ............................................................................04-32
8-6. High pressure protection ..............................................................................................04-32