Daikin Cooling-Only Outdoor Unit RKS60E2V1B

Warning: Ensure that the voltage between (+) and (–) of the diode bridge (DB1) is approx. 0 V before proceeding

Voltage between (+) and (–) of the diode bridge (DB1) is approx. 0 V

Disconnect the compressor harness connector from the outdoor unit PCB. To disengage the connector, press the protrusion on the connector.

Compressor harness connector successfully disconnected

Measure resistance between the terminals of the DB1 and the terminals of the compressor with a multi-tester.

Enter the resistance measurement

Measurement within acceptable range

Sign off on the power module check

Warning: This check requires trained personnel with PPE!

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

Upload a photo of the measured waveform

Is the power supply waveform a sine wave?

Is there waveform disturbance near the zero cross?

Sign off on the power supply waveform check

Voltage of 320 ± 30 V is applied

Set operation off and power off. Disconnect the connector S70

Control voltage between the pins 3 - 4

Rotation command voltage between the pins 2 - 4

Keep operation off and power off. Connect the connector S70

2 pulses (0 ~ 15 VDC) are output at the pins 1 - 4 when the fan motor is rotated 1 turn by hand

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

Sound blanket (outer) removed carefully to avoid tearing the piping ports

Sound blanket (top upper) removed

Sound blanket (top lower) removed

Discharge pipe thermistor released without losing the clip for the thermistor

Outdoor heat exchanger thermistor removed after cutting the clamp

Sign off on the sound blanket / thermistor removal

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

Preparation: Remove the electrical box according to the “Removal of Electrical Box”.

Disconnect the connectors from the service monitor PCB [S52] [S102].

Detach the 4 clamps with pliers.

Remove the screws of the terminal board and the earth wire.

Unfasten the hook on the right.

Disconnect the 2 connectors for the reactor [HR1] [HR2].