Daikin 4-Zone Outdoor Heat Pump 4MKS58E3V1B

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.

Preparation: Remove the outer panels and plates. Remove the electrical box.

Remove the 2 screws of the fan motor fixing plate.

Remove the fan motor fixing plate. When reassembling, fit the lower hooks.

When reassembling, align the mark of the outdoor fan with the D-cut section of the motor shaft.

Remove the nut and remove the outdoor fan.

Open the 2 hooks and release the fan motor lead wire.

When reassembling, put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan.

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

1. Remove the service monitor PCB.

2 Remove the screw of the terminal board and open it.

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

4 Unfasten the upper hook and pull the service monitor PCB upward to remove.

[AC1] [AC2] : for power supply [S10] : for transmission

1 Disconnect the connectors for the terminal board on the right side.

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

Disconnect the compressor lead wires.

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 of the discharge side and disconnect the part (a).

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.

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.