Daikin Outdoor Heat Pump RXS20G2V1B

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 down the stop valve cover and remove it.

2 Remove the 2 screws and lift the top panel.

Warning: This procedure requires trained personnel with PPE!

Control voltage between pins 3 - 4

Rotation command voltage between pins 2 - 4

2 pulses output at pins 1 - 4 when fan motor is rotated 1 turn by hand

Outdoor fan motor functioning properly

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

Untie the string and open the sound blanket (outer)

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

Remove the electrical box according to the 'Removal of Electrical Box'

Lift and remove the sound blanket (outer)

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

Pull the sound blanket (inner) out

EV connector correctly connected to the PCB

EV generates latching sound when power is turned off and on

Continuity present when connector is disconnected and checked with a tester

Check continuity between the following pins

Note: The latching sound varies depending on the valve type

Sign off on the electronic expansion valve check

Check the connection of connector

Check the motor power supply voltage output (pins 4 - 7)

Check the motor control voltage (pins 4 - 3)

Check the rotation command voltage (pins 4 - 2)

Check the rotation pulse (pins 4 - 1)

Sign off on the fan motor connector output check