Daikin 4-Zone Cooling-Only Outdoor Unit 4MKS75F2V1B

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 heat exchanger.

Remove the 4 screws (2 on both sides) of the top panel.

Remove the 6 screws of the front panel.

Remove the screw of the shield plate.

Slide the shield plate to the left to unfasten the hooks and remove the shield plate.

Unfasten the upper 2 hooks. Align the position of hole of the upper hook to pull the front panel out.

Lift the front panel up to unfasten the left side hooks. The front panel has 3 hooks on the left.

Unfasten the right side hook and remove the front panel.

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

Refrigerant gas is empty in the circuit

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.

Piping restored by nonoxidation brazing

Four way valve wrapped with wet cloth and provided water so that the cloth does not dry

Brazed part disconnected where is easy to disconnect and restore

Pipes on the main unit cut with a tube cutter in order to make it easy to disconnect

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

1. Remove the right side panel.

Remove the outer panels and plates.

1 Remove the 3 screws of the right side panel.

2 Remove the 2 screws on the back.

3 Remove the protection rubber. There is a hook on the back.

4 Lift up and remove the right side panel.

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

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.

The cooling only models have no 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.

1. 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.

The illustrations are for 3- room models as representative, 4-room models also have D port.

1 Layout of the connecting wires

The wires are fixed to the terminal board with screws.