Daikin Cooling-Only Outdoor Unit RKS42G2V1B

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

Detach the four way valve coil and the 2 clamps, and then detach the wire harnesses.

Remove the screw and remove the four way valve coil.

Pull out the electronic expansion valve coil.

Before working, make sure that the refrigerant gas is empty in the circuit.

Be sure to apply nitrogen replacement when heating up the brazed part.

Check the connection of connector

Check the motor power supply voltage output (pins 4 - 7)

Check the motor control voltage (pins 4 - 3)

Check the rotation command voltage (pins 4 - 2)

Check the rotation pulse (pins 4 - 1)

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

When reassembling, fit the lower hook into the bottom frame.

2 The partition plate has hooks on the lower side. Lift and pull the partition plate to remove.

Remove the screw to remove the reactor.

2. Remove of the sound blanket.

Since the piping ports are torn easily, remove the open blanket carefully.

1 Untie the string, the sound blanket (outer) and pull it out.

Warning: This procedure requires trained personnel with PPE!

Control voltage between pins 3 - 4

Rotation command voltage between pins 2 - 4

2 pulses output at pins 1 - 4 when fan motor is rotated 1 turn by hand

Warning: Disconnect the connectors of the thermistors from the PCB before proceeding

Thermistors disconnected from the PCB

Measure the resistance of each thermistor

Upload a photo of the tester reading

Select the model of the thermistor

Sign off on the thermistor resistance check