OPERATION MANUAL SPLIT SYSTEM Air Conditioners MODELS Air Handling Unit FTQ18PAVJU FTQ24PAVJU English Français 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. Español Lire soigneusement ces instructions avant l’installation. Conserver ce manuel à portée de main pour référence ultérieure. Ce manuel doit être donné au propriétaire de l’équipement.
CONTENTS ILLUSTRATIONS .............................................. [1] 1. WHAT TO DO BEFORE OPERATION ......... 1 2. SAFETY CONSIDERATIONS ...................... 1 3. OPERATION RANGE ................................... 4 4. INSTALLATION SITE ................................... 4 5. NAME AND FUNCTION OF EACH SWITCH AND DISPLAY ON THE REMOTE CONTROLLER ............................................. 5 6. OPERATION PROCEDURE ........................ 6 7. OPTIMUM OPERATION .............................. 7 8.
DANGER .......... Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING ........ Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION ......... Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices. NOTE................
• Never touch the internal parts of the controller. Do not remove the front panel because some parts inside are dangerous to touch. To check and adjust internal parts, contact your dealer. CAUTION • Do not use the air conditioner for any other purposes other than comfort cooling or heating. Do not use the unit for cooling precision instruments, food, plants, animals or works of art.
• Take snow protection measures. Contact your dealer for the details of snow protection measures, such as the use of a snow protection hood. • Do not attempt to do electrical work or grounding work unless you are licensed to do so. Consult with your dealer for electrical work and grounding work. • Pay Attention to Operating Sound. Be sure to use the following places: a.
Regarding drainage of drain piping • Is the drain piping executed to perform complete drainage? If proper drainage is not carried out from the outdoor drain pipes during air-conditioning operation, chances are that dust and dirt are clogged in the pipe. This may result in a water leakage from the indoor unit. Under such circumstances, stop the operation of the air conditioner, and then consult your dealer or our service station. DISPLAY “ 8 9 10 5.
1. Airflow duct (local procurement) 6. OPERATION PROCEDURE Read the operation manual that came with the remote controller. • To protect the unit, turn on the main power switch 6 hours before operation. • If the main power supply is turned off during operation, operation will restart automatically after the power turns back on again. 2. Power supply wiring and ground wire through conduit 3. Refrigerant piping 4. Drain pipe 5. Air inlet 6. Remote controller 7.
2 NOTE ON/OFF • The setting temperature range of the remote controller is 60°F to 90°F. Press ON/OFF button. OPERATION lamp lights up or goes off and the system starts or stops OPERATION. [EXPLANATION OF HEATING OPERATION] DEFROST OPERATION • As the frost on the coil of an outdoor unit increase, heating effect decreases and the system goes into DEFROST OPERATION. • The indoor unit fan stops and the remote controller display shows “ ”.
8. MAINTENANCE (FOR SERVICE PERSONNEL) WARNING • Only a qualified person is allowed to perform maintenance without daily maintenance. • Before touching any of connection wirings, be sure to turn off all power supply switches. • For installation of optional parts, only a qualified person is allowed to do so. Be sure to use optional parts specified by our company. Installation in your own manner may result in water leakage, electric shock or fire.
3. Attach the air filter. Once cleaning is done, be sure to replace the air filter as it was. 4. Push the “filter sign reset” button on the remote controller. The display “ ” vanishes. START UP AFTER A LONG STOP Confirm the following • Check that the air inlet and outlet are not blocked. Remove any obstacle. • Check if the earth is connected. Might there be a broken wire somewhere? Contact your dealer if there are any problems. Clean the air filter • After cleaning the air filter, make sure to attach it.
III. WHITE MIST COMES OUT OF A UNIT • When humidity is high during cooling operation (In oily or dusty places) If the inside of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the inside of the indoor unit. Ask your Daikin dealer for details on cleaning the unit. This operation requires a qualified service person. • When the system is changed over to HEATING OPERATION after DEFROST OPERATION.
1. If the system does not operate at all. • Check if there is a power failure. Wait until power is restored. If power failure occurs during operation, the system automatically restarts immediately after the power supply recovers. • Check if no fuse has blown. Turn off the power supply. • Check if the breaker is blown. Turn the power on with the breaker switch in the off position. Do not turn the power on with the breaker switch in the trip position. (Contact your dealer.
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