Mitsubishi Air Conditioner EACV-M1800YCL-N

Warning: This procedure requires trained personnel with PPE!

Recover the refrigerant through the check joint (low-pressure (LP) side) on the left side of the unit next to the plate heat exchanger.

Select the type of refrigerant circuit

Remove the pillars by unscrewing the four M5 screws.

Cut the tie band as required, and remove the LEV coil.

Remove the U-pipe located in front of the LEV by removing the braze from the two areas shown in the figure.

Braze the pipe that was removed in the previous step to the new LEV.

Pressurize the unit from the high pressure side when the unit is airtight or charged with refrigerant.

Warning: Ensure the power is off before starting the procedure

Center panel removed by unscrewing the ten M5 screws

Fan motor relay connectors disconnected

Bell mouth and mounting plate removed by unscrewing the four M5 screws

Tie band cut and fan motor wire bundled and placed near the fan motor

Propeller removed by unscrewing the M12 box nut

Fan motor removed by unscrewing the four screws

Procedure reversed to complete the replacement

Sign off on the fan replacement

Warning: This procedure requires trained personnel with PPE!

Recover the refrigerant through the check joint (low-pressure (LP) side) on the left side of the unit next to the plate heat exchanger side.

Remove the pillars by unscrewing the eight M5 screws.

Remove the four M5 screws and four M4 screws, and move the breaker box out of the way, avoiding the wire running near the suction pipe.

Remove the two check joints, two pressure sensors, and three connectors.

Remove the pressure sensor fixing plate by unscrewing the two M5 screws.

Disconnect the check joint pipe located in front of the compressor by removing the braze from the areas shown in the figure.

Remove the three M5 screws from the compressor, and disconnect the compressor power line.

Warning: This procedure requires trained personnel with PPE!

Water completely drained from the water circuit

Refrigerant collected through the check joint

Water pipe disconnected from the heat exchanger

Upper joint plate removed from the water pipe side

Lower support plate on the LEV side removed from the heat exchanger