Daikin Outdoor Heat Pump RZQ160KV4A

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

Remove the front panel (2) accordance with the Procedure to remove Outside Panels.

1 Unscrew the 4 screws that fix the air discharge grille and disengage the 4 hooks at the top and bottom of the grille, and then remove this air discharge grille.

2 Unfasten the fan lock nut that fixes the propeller fan.

Remove the front panel (1) accordance with the Procedure to remove Outside Panels.

1 Remove the connector (X206A, X207A) for fan motor from the PCB.

In order to disconnect the connector, do not pull the lead wire. Hold the connector part and then press the hooks.

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

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

Remove the top panel and the front panel (2) accordance with the Procedure to remove Outside Panels.

Before removing the solenoid valve or the electronic expansion valve, be sure to recover the refrigerant.

Precaution for mounting the coil for the electronic expansion valve

Align the dimple of the electronic expansion valve and the stopper of the electronic expansion valve coil, and then press them in until you hear them click.

1 Disconnect the pressure sensor connector (X17A).

2 Use 2 spanners to remove the pressure sensor.

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

Remove the top panel and the front panel (2) and side panel accordance with the Procedure to remove Outside Panels.

Pull out the outdoor air thermistor to the front, and then slide this thermistor to the right to remove it.

Pinch the mounting spring that fixes the discharge pipe thermistor to pull out this thermistor.

Press the fixing section of the suction pipe thermistor to pull out this thermistor.

Pull the fixing bracket of the heat exchanger’s distribution pipe thermistor to the front, and then remove this thermistor.

Press the fixing section of the intermediate heat exchanger thermistor to pull out this thermistor.

The heat exchanger’s distribution pipe thermistor, intermediate heat exchanger thermistor, and liquid pipe thermistor are jointed together with a single connector. Consequently, these 3 thermistors should be replaced at the same time.

Press the fixing section of the liquid pipe thermistor to pull out this thermistor.

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

Front panel removed in accordance with the Procedure to remove Outside Panels

If the top panel cannot be removed, it is possible to pull the switch box to the front without removing the top panel.

Upload a photo of the disconnected connectors

Precaution for mounting the pressure sensor: To prevent the lead wire from hanging over the PCB, hook the lead wire of 160 to 170 mm in length from the front end of the connector on the clamp.

Each connector on the PCB disconnected

3 screws that fix the reactor unscrewed and reactor removed