Daikin Outdoor Unit for Multi-Split System 3MXS24JVJU

Disconnect the compressor lead wires. U : red, V : yellow, W : blue

Disconnect the pipings, referring to page 221

Sign off on the compressor removal

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

1 Open the cover of the electrical box.

Unfasten the 4 hooks. The hooks are marked with.

Warning: This procedure should be performed by a trained technician

Measure the power supply waveform between No. 1 and No. 2 on the terminal board

Is the power supply waveform a sine wave?

Is there waveform disturbance near the zero cross?

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

Remove the 2 screws to detach the ground wires.

Disconnect the connector for the fan motor [S70].

Release the fan motor lead wire.

Disconnect the connector for the four-way valve coil [S80]. Pull out the clamp.

Disconnect the 4 connectors for the electronic expansion valve coils and pull out the clamp.

Disconnect the connector for the liquid pipe thermistors [S93] and pull out the clamp.

Disconnect the connector for the gas pipe thermistors [S92] and pull out the clamp.

Disconnect the connector for the thermistors [S90]and pull out the clamp.

Output voltage between pins 1 and 3

Number of pulses between pins 2 and 3 when the fan motor is operating