Fujitsu ARXG24KMLA Service Instruction

CONTENTS
1. CONTROL AND FUNCTIONS
1. Compressor frequency control..................................................................01-1
1-1. Cooling operation ...........................................................................................................01-1
1-2. Heating operation ...........................................................................................................01-5
1-3. Dry operation..................................................................................................................01-6
1-4. Compressor frequency at normal start-up ......................................................................01-7
1-5. Compressor frequency limitation by outdoor temperature ..............................................01-9
2. Auto changeover operation......................................................................01-11
3. Fan control.................................................................................................01-13
3-1. Indoor fan control..........................................................................................................01-13
3-2. Outdoor fan control.......................................................................................................01-19
4. Louver control ...........................................................................................01-21
4-1. Individual louver control (For Compact cassette type)..................................................01-21
4-2. All louver control (For Compact cassette type) .............................................................01-21
4-3. Swing operation (For Compact cassette type)..............................................................01-22
5. Timer operation control ............................................................................01-23
5-1. Wireless remote control................................................................................................01-23
5-2. Wired remote control ....................................................................................................01-25
6. Defrost operation control .........................................................................01-28
6-1. Defrost operation in heating operation stopped ............................................................01-29
7. Various control..........................................................................................01-30
7-1. Auto restart...................................................................................................................01-30
7-2. 10 °C HEAT operation ..................................................................................................01-30
7-3. ECONOMY operation ...................................................................................................01-30
7-4. Fresh air control............................................................................................................01-30
7-5. Compressor preheating ................................................................................................01-31
7-6. External electrical heater control ..................................................................................01-31
7-7. Electronic expansion valve control ...............................................................................01-31
7-8. Drain pump control .......................................................................................................01-32
7-9. Prevention to restart for 3 minutes (3 minutes st) .........................................................01-33
7-10. 4-way valve control.....................................................................................................01-33
7-11. Peak cut operation .....................................................................................................01-33
7-12. Outdoor unit low noise operation ................................................................................01-34
8. Various protections...................................................................................01-35
8-1. Discharge gas temperature over-rise prevention control ..............................................01-35
8-2. Anti-freezing control (cooling and dry mode) ................................................................01-35
8-3. Current release control .................................................................................................01-36
8-4. Low pressure protection control (cooling mode) ...........................................................01-36
8-5. Indoor unit fan motor over temperature protection........................................................01-37
8-6. Compressor temperature protection ............................................................................01-37
8-7. High pressure protection ..............................................................................................01-38

Fujitsu ARXG24KMLA Specifications

General

Brand	Fujitsu
Model	ARXG24KMLA
Category	Air Conditioner
Language	English