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Daikin FCQ71KVLT User Manual

Daikin FCQ71KVLT
17 pages
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REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Pair Type
3/4/5/6 HP Class
Si281312E
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Daikin FCQ71KVLT Specifications

General IconGeneral
CategoryAir Conditioner
ModelFCQ71KVLT
Cooling Capacity7.1 kW
Heating Capacity8.0 kW
RefrigerantR32
Energy Efficiency Ratio (EER)3.5
Energy Efficiency Ratio (Cooling)3.5
Energy Efficiency Ratio (Heating)4.0
Power Supply220-240 V
Power SourceElectric
Noise Level (Outdoor)50 dB

Summary

Procedure to Remove Air Filter and Suction Grille

Removing the Air Filter

Press buttons to release and pull down the air filter. Disengage latch holes from protrusions.

Removing the Suction Grille

Disengage top strings, open grille to 45 degrees, and unlatch the 3 bottom latches.

Procedure to Remove Decoration Panel

Removing the Decoration Panel

Remove corner covers, strings, and 4 screws. Unlatch outer and inner latches to remove the panel.

Procedure to Remove Horizontal Blade

Removing the Inner Frame

Unscrew 4 back screws and 4 front screws. Remove 4 seal parts and pull out the inner frame.

Removing Heat Insulation Parts

Remove heat insulation from inner frames and corners. Unscrew 8 bearing mounting plates.

Procedure to Remove Swing Motor

Removing the Swing Motor

Remove anti-sweat part, unscrew motor casing, disconnect relay harness, then remove the swing motor.

Procedure to Remove Switch Box

Removing the Switch Box Lid

Unfasten two screws and slide to remove the switch box lid.

Disconnecting Switch Box Connectors

Disconnect flow switch, thermistor, fan motor, and drain pump connectors.

Removing the Switch Box

Unscrew two screws to detach and remove the switch box.

Procedure to Remove PCB

Removing the Switch Box Lid

Unfasten screws and slide to remove the switch box lid for access.

Disconnecting PCB Components

Disconnect various wiring connectors and the ground cable from the PCB.

Removing the PCB

Press tabs to detach and remove the printed circuit board (PCB).

Procedure to Remove Bell Mouth and Drain Pan

Removing the Bell Mouth

Remove three mounting screws, disconnect wiring, and slide the bell mouth forward.

Removing the Drain Pan

Remove drain socket cap, discharge water, unscrew four screws, and pull down the drain pan.

Procedure to Remove Fan Motor

Removing the Fan Rotor

Remove washer-faced nut and lock bracket, then pull out the fan rotor downward.

Removing the Fan Motor

Disconnect motor connector, remove washer-faced nut, and take out the fan motor.

Procedure to Remove Drain Pump, Float Switch

Removing the Drain Pump

Cut cable tie, pull drain hose, unscrew pump assembly screws, and remove bracket.

Removing the Float Switch

Unscrew float switch assembly, slide protrusions laterally, and remove the float switch.

Procedure to Remove Humidity Thermistor and Air Temperature Thermistor

Removing the Humidity Thermistor Assembly

Remove switch box lid, disconnect humidity thermistor connector, and pull out the assembly.

Removing the Humidity Thermistor

Pull out plastic casing, press tabs to detach the humidity thermistor, and disconnect its connector.

Procedure to Remove Heat Exchanger Temperature Thermistor

Removing the Heat Exchanger Thermistor

Cut cable tie and pull the thermistor with heat insulation in the indicated direction.

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