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Fujitsu AST20AG Operating Manual

Wall mounted type
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OPERATING MANUAL

ROOM AIR CONDITIONER

WALL MOUNTED TYPE

Indoor Unit
AST20AG
AST20RG
AST24AG
AST24RG
AST30AG
AST30RG
Outdoor Unit
AOT20AZ
AOT20RZ
AOT24AB
AOT24RZ
AOT30AB
AOT30RB
KEEP THIS OPERATION MANUAL
FOR FUTURE REFERENCE
FUJITSU GENERAL LIMITED
P/N9360503015-02

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Summary of Contents for Fujitsu AST20AG

  • Page 1: Operating Manual

    OPERATING MANUAL ROOM AIR CONDITIONER WALL MOUNTED TYPE Indoor Unit AST20AG AST20RG AST24AG AST24RG AST30AG AST30RG Outdoor Unit AOT20AZ AOT20RZ AOT24AB AOT24RZ AOT30AB AOT30RB KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED P/N9360503015-02...
  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS .......... 2 SWING OPERATION ..........12 FEATURES AND FUNCTIONS ......... 3 ENERGY SAVE OPERATION ....... 13 NAME OF PARTS ............4 MANUAL AUTO OPERATION ......13 PREPARATION ............6 CLEANING AND CARE ........14 OPERATION .............. 7 TROUBLESHOOTING ..........
  • Page 3: Features And Functions

    FEATURES AND FUNCTIONS AUTOMATIC OPERATION REMOVABLE INTAKE GRILLE ● COOLING MODEL The indoor unit’s INTAKE GRILLE can be removed for easy cleaning and maintenance. Merely press the START/STOP button, and the unit will begin automatic operation in the Cooling or Dry mode as appropriate, in accordance with the thermostat setting MILDEW-RESISTANT FILTER and the actual temperature of the room.
  • Page 4: Name Of Parts

    NAME OF PARTS Instructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Fig. 1 Fig. 2 Fig. 3 Fig. 5 Fig. 4 Fig. 6 SLEEP TIMER CLOCK AUTO COOL CLOCK TIMER SLEEP MASTER CONTROL TEMP TIME CONTROL ON TIMER RESET...
  • Page 5 Fig. 1 Indoor Unit Fig. 6 Remote Control Unit 1 Operating Control Panel (Fig. 2) J SLEEP Button 2 MANUAL AUTO button K MASTER CONTROL Button L SET TEMP./SET TIME Buttons ( 3 Remote Control Signal Receiver M Signal Transmitter 4 Indicator Lamps (Fig.
  • Page 6: Preparation

    PREPARATION CAUTION! Turn on the Power ● Take care to prevent infants from accidentally swallowing batteries. Connect the power supply plug to an electrical outlet; in the ● When not using the remote control unit case of a direct line connection, turn on the circuit breaker. for an extended period, remove the batteries to avoid possible leakage and damage to the unit.
  • Page 7: Operation

    OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). To Select Mode Operation Press the START/STOP button. SLEEP TIMER The indoor unit’s OPERATION indicator lamp (red) will light. The air conditioner will start operating. Press the MASTER CONTROL button to select the de- COOL sired mode.
  • Page 8 OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). About Mode Operation AUTO: COOLING MODEL ● When the room temperature is 2˚C higher than the set temperature, the mode will Cooling Operation switch between Cooling and Drying. ●...
  • Page 9: Timer Operation

    TIMER OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Before using the timer function, be sure that the remote control unit is set to the correct current time (See page 6). To Use the ON timer or OFF timer SLEEP TIMER Press the START/STOP button...
  • Page 10: Sleep Timer Operation

    TIMER OPERATION About the PROGRAM timer About the ON timer ● The PROGRAM timer allows you to integrate OFF timer ● The timer function is designed to bring your room to a and ON timer operations in a single sequence. The se- comfortable temperature by the set time;...
  • Page 11: Adjusting The Direction Of Air Circulation

    ADJUSTING THE DIRECTION OF AIR CIRCULATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Vertical (up-down) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION VERTICAL SET button. Horizontal (right-left) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION HORIZONTAL SET button.
  • Page 12: Swing Operation

    SWING OPERATION Begin air conditioner operation before performing this procedure. To select Vertical airflow SWING Operation Press the AIR FLOW DIRECTION VERTICAL SWING button . SWING SWING The SWING indicator lamp (VERTICAL SWING) (orange) will light. In this mode, the UP/DOWN air direction flaps will swing automatically to direct the TIME TEST ENERGY...
  • Page 13: Energy Save Operation

    ENERGY SAVE OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). The air conditioner can be operated while keeping energy consumption costs down. How To Use the ENERGY SAVE OPERATION SWING SWING Press the START/STOP button (if the unit is already operating, proceed to step 2).
  • Page 14: Cleaning And Care

    CLEANING AND CARE ● Before cleaning the air conditioner, be sure to turn it off and disconnect the power supply cord. CAUTION! ● Be sure the intake grille is installed securely. ● When removing and replacing the air filters, be sure not to touch the heat exchanger, as per- sonal injury may result.
  • Page 15: Troubleshooting

    TROUBLESHOOTING Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the WARNING! power supply plug, and consult authorized service personnel. Merely turning off the unit’s power switch will not completely disconnect the unit from the power source.
  • Page 16: Operating Tips

    TROUBLESHOOTING Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Symptom Items to check See Page ● Is the power supply plug disconnected from its outlet? CHECK ONCE Doesn’t operate at all: MORE ● Has there been a power failure? —...
  • Page 17: Temperature And Humidity Range

    Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Temperature and Humidity Range *Heating Mode Cooling/Dry Mode COOLING MODEL Outdoor temperature About 21 to 52˚C (AST20AG, AST24AG Models) — About 0 to 52°C (AST30AG Model) HEAT & COOL MODEL About 0 to 52˚C About 0 to 21˚C...