Daikin Outdoor Heat Pump 3MXS68G3V1B

Warning: Wait for 10 minutes or more after turning off all power supplies before disassembling work.

Remove electronic expansion valve coils

Remove the screw and four way valve coil

Cooling only models have no four way valve coil

Open the putty and remove the liquid pipe thermistors

Pull out the gas pipe thermistors

Be careful not to lose the clip

Pull out the outdoor heat exchanger thermistor

Wait for 10 minutes after turning off all power supplies before starting disassembly.

Ensure pipes and parts heated by the gas brazing machine are cool to avoid burns.

Is the room ventilated in case of refrigerant gas leakage?

Collect all refrigerant gas to prevent atmospheric discharge.

Ensure refrigerant gas is empty in the circuit.

Apply nitrogen replacement when heating the brazed part.

Provide a protective sheet or steel plate to shield peripheries from brazing flame.

Warning: Wait for 10 minutes after turning off all power supplies before disassembling work.

Disconnect the connectors from the service monitor PCB

Unfasten the upper hook and remove the service monitor PCB

Remove the screw of the terminal board and open it

Disconnect the connectors for the terminal board on the right side

Disconnect the connectors for the reactor on the left side

Remove the screws of the main PCB

Warning: Wait for 10 minutes after turning off all power supplies before disassembling work.

Unfasten the 4 hooks and remove the electrical box cover.

Detach the clamp and disconnect the connector [S70].

Release the fan motor core for the harness of [S70].

Disconnect the connectors for the electronic expansion valve coil.

Disconnect the connector [S40].

Wait for 10 minutes after turning off all power supplies before starting disassembly.

Ensure no contact with heated pipes and parts from the gas brazing machine.

Is the room ventilated in case of refrigerant gas leakage?

Collect all refrigerant gas to prevent atmospheric discharge.

Restore piping using non-oxidation brazing.

Ensure refrigerant gas is empty in the circuit.