Mitsubishi Outdoor Unit Split-Type Air Conditioner MUZ-AP71VG

Remove the screws of the service panel

Remove the screws of the top panel

Remove the screw of the valve cover

Disconnect the power supply and indoor/outdoor connecting wire

Remove the screws of the cabinet

(1) Remove the top panel, cabinet and service panel. (Refer to section 1.)

(2) Remove the back panel. (Refer to section 1.)

(3) Remove the screws fixing the relay panel.

(5) Remove the inverter assembly. (Refer to section 2.)

(6) Recover gas from the refrigerant circuit.

NOTE: Recover gas from the pipes until the pressure gauge shows 0 kg/cm2 (0 MPa).

(7) Detach the brazed part of the suction and the discharge pipe connected with compressor.

(8) Remove the compressor nuts.

Connect the compressor and activate the inverter

Compressor connected and inverter activated

Start heating or cooling operation by pressing EMERGENCY OPERATION switch on the indoor unit

Heating or cooling operation started

Time from the start of compressor to the stop of compressor due to overcurrent

Sign off on the compressor operation time check

Warning: Disconnect the connector between the compressor and the power module (IC700) before proceeding

Ohmmeter zeroed before measurement

Resistance measurement between BLK-WHT

Resistance measurement between BLK-RED

Resistance measurement between WHT-RED

Sign off on the compressor winding check

Section 1: Cabinet and Service Panel Removal

Section 2: Disconnecting Lead Wire and Connectors

Lead wire to the reactor disconnected

Disconnect the following connectors

Earth wires and the lead wires of the inverter P.C. board removed

Section 3: Removing P.B. Support and Inverter P.C. Board