Daikin Outdoor Heat Pump RXS25K2V1B

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.

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.

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

Preparation: Remove the outer panels and disconnect the connector for the fan motor according to the “Removal of Outer Panels / Fan Motor”.

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

Disconnect the 2 connectors for the reactor

When reassembling, you can connect the 2 harnesses in either way regardless of the color.

Disconnect the relay connector for the compressor

Disconnect the connector for the overload protector [S40]

When reassembling, connect the connectors in the following order: (1) [S40] (2) relay connector for compressor (3) reactor (4) [S20] (5) [S80] (6) [S70]

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

Take care not to cut your finger by the fins of the outdoor heat exchanger.

The stop valve cover is united with the shield plate.

When reassembling, make sure to fit the 5 hooks.

1 Remove the screw of the stop valve cover. Pull the stop valve cover downward and remove it.

2 Remove the 3 screws and lift the top panel.

Some models have only 2 screws.

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

1. Remove the main PCB and the forced operation button PCB.

You can remove the main PCB when you disconnect the lead wires on the terminal board without removing the electrical box.

2 Remove the screw on the terminal board.

4 Pull out the forced operation button PCB.

Disconnect the connector [S110] to remove the forced operation button PCB.

Be careful of a sharp protrusion at the back of the forced operation button PCB.