Daikin Outdoor Heat Pump RXS20J2V1B

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.

Disconnect the lead wires of the compressor.

Remove the screw and remove the four way 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.

Cautions for restoration: Restore the piping by nonoxidation brazing.

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

Remove the 2 nuts of the compressor.

Warning: Be careful not to get yourself burnt with 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.)

Warning: Since it may happen that the refrigerant oil in the compressor catches fire, prepare wet cloth so as to extinguish fire immediately.

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.

Restore the piping by nonoxidation brazing.

It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat. (Keep below 120°C.) For the sake of this, wrap the four way valve with wet cloth and provide water so that the cloth does not dry.

Disconnect the brazed part where is easy to disconnect and restore.

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

Main PCB and the forced operation button PCB removed

Screw on the terminal board removed

Forced operation button PCB pulled out and connector [S110] disconnected

Selective connector for standby electricity saving disconnected and relay connector pulled out

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

Remove the outer panels according to the “Removal of Outer Panels / Fan Motor”.

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

1 Remove the screw and remove the reactor.

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

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

Disconnect the connector for the four way valve coil [S80]

Disconnect the connector for the electronic expansion valve coil [S20]

Disconnect the 2 connectors for the reactor

Disconnect the relay connector for the compressor

Disconnect the connector for the overload protector [S40]

Pull out the outdoor heat exchanger thermistor

Release the discharge pipe thermistor