Daikin Outdoor Unit For Cooling Only System RKS28HV2S

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

Preparation: Remove the electrical box according to the 'Removal of Electrical Box'.

Disconnect the connectors [S52] [S102] from the service monitor PCB.

Detach the 4 clamps with pliers and remove the service monitor PCB.

Remove the screws of the terminal board and the earth wire.

Unfasten the hook on the right.

Disconnect the harnesses. 1: Black, 2: White, 3: Red, L1: Black, L2: Brown, N1: White, N2: Blue

Disconnect the 2 harnesses for the reactor [HR1] [HR2]. [HR1] : White, [HR2] : Blue. Note: The harness for [HR2] has a ferrite core.

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

The design of discharge grille is different depending on the model.

The hooks are secured in the clearances of the outdoor heat exchanger fins.

1) Unfasten the 2 hooks at the bottom first.

2) Slide the suction grille downward to unfasten the 3 top hooks.

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

Preparation: Remove the electrical box according to the 'Removal of Electrical Box'.

Removed the 2 lower screws first?

Then, removed the 2 upper screws?

Warning: Be sure to remove the lower screws first. If the top screws are removed first, the fan motor may tilt down or fall and cause injury because its center of gravity is shifted to the front.

When reassembling, make sure that the wire harness is facing downward.

Sign off on the fan motor removal

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

1. Remove the electronic expansion valve coil.

1 Pull the electronic expansion valve coil out.

2. Remove the four way valve coil.

2 Remove the four way valve coil.

1 Pull out the outdoor heat exchanger thermistor.

2 Slightly open the sound blanket (outer).

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

Remove the overload protector (OL).

Before working, make sure that the refrigerant gas is empty in the circuit.

Be sure to apply nitrogen replacement when heating up the brazed part.

Heat up the brazed part and withdraw the piping with pliers.

Warning: Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.