Fujitsu GENERAL ASHG18KMTE - 4. Control and Functions

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CONTENTS

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. Compressor frequency 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. Adjust the horizontal louver ..........................................................................................04-14

5. Timer operation control ............................................................................04-15

5-1. →ireless remote control................................................................................................04-15

5-2. →ired remote control ....................................................................................................04-17

6. Defrost operation control .........................................................................04-20

6-1. Defrost operation in heating operation stopped ............................................................04-21

7. Various control..........................................................................................04-22

7-1. Auto restart...................................................................................................................04-22

7-2. MANUAL AUTO operation............................................................................................04-22

7-3. Forced cooling operation ..............................................................................................04-23

7-4. 10 °C HEAT operation..................................................................................................04-23

7-5. ECONOMY operation ...................................................................................................04-23

7-6. PO→ERFUL operation .................................................................................................04-24

7-7. Fresh air control............................................................................................................04-24

7-8. Compressor preheating ................................................................................................04-24

7-9. External electrical heater control ..................................................................................04-25

7-10. Electronic expansion valve control .............................................................................04-25

7-11. Prevention to restart for 3 minutes (3 minutes st) .......................................................04-25

7-12. 4-way valve control.....................................................................................................04-26

7-13. Outdoor unit low noise operation ................................................................................04-26

8. Various protections...................................................................................04-27

8-1. Discharge gas temperature over-rise prevention control ..............................................04-27

8-2. Anti-freezing control (cooling and dry mode) ................................................................04-27

8-3. Current release control .................................................................................................04-28

8-4. Cooling pressure over-rise protection...........................................................................04-28

8-5. Compressor temperature protection ............................................................................04-28

8-6. High pressure protection ..............................................................................................04-29

8-7. Low outdoor temperature protection.............................................................................04-29

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