OPERATION MANUAL System air conditioner MODELS RXYMQ36MVJU RXYMQ48MVJU Read these instructions carefully before installation. Keep this manual in a handy place for future reference. This manual should be left with the equipment owner.
Contents NOTE....Indicates situation that may result in equipment or property- Safety considerations..........1 damage-only accidents. Names of parts............4 Keep these warning sheets handy so that you Preparation Before Operation ........6 can refer to them if needed. Useful Information..........6 Also, if this equipment is transferred to a new user, COOLING ·...
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Be sure only to use • Placing a flower vase or other containers with accessories made by Daikin which are specifi- water or other liquids on the unit could result cally designed for use with the equipment and in a shock hazard or fire if a spill occurs.
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• Before cleaning, be sure to stop the operation, NOTE turn the breaker off or pull out the supply cord. • Never press the button of the remote controller Otherwise, an electric shock and injury may result. with a hard, pointed object. •...
Names of parts Installation site This operation manual is for the following systems with standard control. If your installation has a customized control system, ask your dealer for the operation. BFFORE INITIATION, CONTACT YOUR DEALER TO CONFIRM YOUR SYSTEM TYPE. The system provides 4 operation modes, Cool/heat changeover remote controller Operation modes...
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ON/OFF button INSPECTION/TEST OPERATION button Press the button and the system will start. Press the This button is used only by qualified service for maintenance button again and the system will stop. purposes. Do not use it in normal operation. OPERATION LAMP (RED) PROGRAMMING TIME button The lamp lights up during operation.
Preparation Before Operation I I I I Tips for saving energy Be careful not to cool (heat) the room too much. • Recommended temperature setting Keeping the temperature setting at a moderate level helps save energy. For cooling 79 to 83 °F Cover windows with a blind or a curtain.
COOLING · HEATING · FAN Operation This operation manual describes the explanation for a case in which the wired remote controller is used. When using the wireless remote controller, refer to the attached operation manual. Changeover cannot be made with a remote controller whose display shows “ ”...
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COOLING · HEATING · FAN Operation Press FAN SPEED CONTROL button. High or Low fan speed can be selected. NOTE: In the heating operation, the fan stops during defrosting or at startup. It does not indicate any abnormality. • only for FXFQ, FXHQ, FXAQ) Press AIR FLOW DIRECTION ADJUST button.
Program DRY Operation Program DRY is a function that alternates between weak cooling and stopping the unit to remove humidity from the air, in order to prevent the room temperature from dropping and becoming too cold. • The microcomputer automatically controls the temperature and fan strength, so these cannot be set using the remote controller.
Adjusting the Air Flow Direction only for FXFQ, FXHQ, FXAQ) Press the AIR FLOW DIRECTION button to adjust the air flow angle. ( • TEST Press the AIR FLOW DIRECTION ADJUST button to select the air direction as shown below. The AIR FLOW FLAP display swings as shown left and the air flow direction continuously varies.
ON/OFF TIMER Operation The timer is operated by the following two ways. • Programming the stop time ( ) ..The system stops operating after the time setting has elapsed. Programming the start time ( ) ..The system starts operating after the time setting has elapsed. The timer can be programmed for a maximum of 72 hours.
How to set Master Remote Controller When the right to select the cooling/heating operation mode is set in the master remote controller, “ ” is dis- • played in slave remote controllers. The right to select the cooling/heating operation mode cannot be set in slave remote controllers. TEST Setting the master remote controller When the system is installed as shown below, it is necessary to designate the master remote controller.
How to designate the master remote controller Continuously press the OPERATION MODE SELECTOR button of the current master remote controller for 4 seconds. The displays showing “ ” (CHANGEOVER UNDER CONTROL) of all slave remote controllers connected to the same outdoor unit flash. Press the OPERATION MODE SELECTOR button of the controller that you wish to designate as the master remote controller.
Trouble Shooting These cases are not troubles. The following cases are not air conditioner troubles but have some reasons. You may just continue using it. Case Explanation The air conditioner does not operate at all. Set to ON the breaker. •...
Trouble Shooting Case Explanation I After operation is stopped: The outdoor fan rotates while the air conditioner is not in operation. The outdoor fan continues rotating for another 60 seconds for system protec- • tion. I While the air conditioner is not in operation: When the outdoor temperature is very high, the outdoor fan starts •...
If one of the following symptoms takes place, call the service shop immediately. I The power supply wire is abnormally hot or damaged. I An abnormal sound is heard during operation. I The safety breaker, a fuse, or the earth leakage circuit Turn the breaker OFF breaker cuts off the operation frequently.
After-Sales Service CAUTION • Do not disassemble, modify or repair the air conditioner by yourself. Improper disassembly, modification or repair may cause water leakage, electric shock or fire. Ask your dealer for such servicing. • Do not move and install the air conditioner by yourself. Improper reinstallation may cause water leakage, electric shock or fire.
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