Daikin Indoor Unit Cooling Only Air Conditioner FTN50JV1G

Warning: Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

Remove the screw, then the drip proof plate.

Pull out the indoor heat exchanger thermistor.

Remove the screw of the earth/ground wire.

Remove the screw of the wire fixture.

Remove the 4 screws of the connecting wires.

The position of the indoor heat exchanger thermistor varies depending on the model. Be careful not to lose the clip of the thermistor.

Disconnect the connector [S1]. [S1]: fan motor

Warning: Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

Release each air filter from the 2 hooks of the front panel.

Remove the air filter by pulling out downward.

The air filter is not marked for difference between the right and left sides. Insert the air filter with the “FRONT” mark faced up. When reassembling, insert the air filter along the guides. Be sure to fasten the hooks when installing the air filter.

Remove the Titanium apatite photocatalytic air-purifying filter, if available, from the 5 hooks.

The right and left filters are interchangeable. Some models have no Titanium apatite photocatalytic air-purifying filter.

Sign off on the air filter removal

Warning: Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

1) Bend the horizontal blade (lower) slightly and release the 2 center shafts.

When reassembling, mount the large horizontal blade to the upper position and the small horizontal blade to the lower position.

3) Slide the horizontal blade (lower) to the left and release the right shaft.

4) Remove the horizontal blade (upper) in the same way.

1. Fit the horizontal blade to the right shaft first. Make sure to rotate the horizontal blade so the shaft fits correctly.

2. Fit the horizontal blade to the center and left shafts.;

Warning: Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

In pump-down work, be sure to stop the compressor before disconnecting the refrigerant pipe. If the refrigerant pipe is disconnected with the compressor operating and the stop valve open, air may be sucked in and may generate an over-pressure in refrigeration cycle, thus resulting in pipe rupture or accidental injury.

When removing or reinstalling the indoor heat exchanger, be sure to wear gloves or wrap the indoor heat exchanger with cloths. (You may be injured by the fins.)

Caution: Be sure to conduct pump down operation before disassembling the refrigerant pipe.

If the refrigerant leaks, repair the spot of leaking, then collect all refrigerant from the unit. After conducting vacuum drying, recharge proper amount of refrigerant.

From the viewpoint of global environmental protection, make sure to use a vacuum pump for air purging.

Unscrew the flare nut for gas piping and liquid piping and disconnect both pipes.

Hold the indoor unit up with a piece of wood.

Place a plastic sheet around the drain pan to prevent wetting the floor with remaining drain.

Warning: Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

1. For auto-swing (right and left) models

Some models have fan guards. Remove the fan guards beforehand.

The unit has 3 sets of vertical blade ASSYs linked to one another with interlock rods.

1) Release the right and left shafts.

2) Unfasten the 3 hooks for each set of vertical blade ASSY (9 hooks).

3) Pull the vertical blade ASSYs to the right and remove them.

2. For models without autoswing (right and left)

Each vertical blade ASSY has 5 or 6 fins which can not be replaced individually.