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..................................................................................................................04-4
1-4. Compressor frequency at normal start-up ......................................................................04-5
1-5. Compressor frequency limitation by outdoor temperature ..............................................04-7
2. Auto changeover operation......................................................................04-10
3. Fan control.................................................................................................04-12
3-1. Indoor fan control..........................................................................................................04-12
3-2. Outdoor fan control.......................................................................................................04-15
4. Louver control ...........................................................................................04-18
4-1. Individual louver control................................................................................................04-18
4-2. All louver control ...........................................................................................................04-18
4-3. Swing operation............................................................................................................04-19
5. Timer operation control ............................................................................04-20
5-1. Wireless remote control................................................................................................04-20
5-2. Wired remote control ....................................................................................................04-22
6. Defrost operation control .........................................................................04-25
6-1. Defrost operation in heating operation stopped ............................................................04-26
7. Various control..........................................................................................04-27
7-1. Auto restart...................................................................................................................04-27
7-2. 10 °C HEAT operation..................................................................................................04-27
7-3. ECONOMY operation ...................................................................................................04-27
7-4. Fresh air control............................................................................................................04-27
7-5. Compressor preheating ................................................................................................04-28
7-6. External electrical heater control ..................................................................................04-28
7-7. Electronic expansion valve control ...............................................................................04-28
7-8. Drain pump control .......................................................................................................04-29
7-9. Prevention to restart for 3 minutes (3 minutes st) .........................................................04-31
7-10. 4-way valve control.....................................................................................................04-31
7-11. Human sensor for energy saving................................................................................04-31
7-12. Peak cut operation .....................................................................................................04-31
7-13. Outdoor unit low noise operation ................................................................................04-32
8. Various protections...................................................................................04-33
8-1. Discharge gas temperature over-rise prevention control ..............................................04-33
8-2. Anti-freezing control (cooling and dry mode) ................................................................04-33
8-3. Current release control .................................................................................................04-34
8-4. Indoor unit fan motor over temperature protection........................................................04-35
8-5. Compressor temperature protection ............................................................................04-35
8-6. High pressure protection ..............................................................................................04-35
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