Daikin Cooling-Only Outdoor Unit RKS50E2V1B

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

Pull out the electronic expansion valve coil.

Warning: Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.

Warning: If the refrigerant gas leaks during work, ventilate the room. (If the refrigerant gas is exposed to flames, toxic gas may be generated.)

Caution: From the viewpoint of global environment protection, do not discharge the refrigerant gas in the atmosphere. Make sure to collect all the refrigerant gas.

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.

Heat up the 2 brazed parts of the electronic expansion valve and remove it.

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

Removed the electrical box cover

Removed the screw of the shield plate

Unfastened the 2 hooks and removed the shield plate

Unfastened the 4 hooks of the electrical box cover and removed it

Disconnected the connector for the fan motor [S70]

Released the fan motor lead wire from the 7 hooks

Removed the washer fitted nut of the outdoor fan

Removed the lower 2 screws from the fan motor first

Disconnect the connectors of the thermistors from the PCB

Thermistors disconnected successfully

Measure the resistance of each thermistor using tester

Check the relationship between normal temperature and resistance

Upload the graph showing the relationship between temperature and resistance

Sign off on the thermistor resistance check

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].

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

Warning: Since the piping ports are torn easily, remove the sound blanket carefully.

Sound blanket (top upper) removed

Sound blanket (top lower) removed

Discharge pipe thermistor released

Warning: Be careful not to lose the clip for the thermistor.