Mitsubishi Split-Type, Heat Pump Air Conditioner PUY-A24NHA2-BS

Disconnect the indoor/outdoor connecting wire from terminal block

Remove all the following connectors from controller circuit board

Remove a screw (4 ✕ 8) from the valve bed to remove the lead wire

Pull out the disconnected wire from the electrical parts box

Diagram symbol in the connector housing

Remove the terminal cover and disconnect the compressor lead wire

Remove an electrical parts box fixing screw (4 ✕ 10) and detach the electrical parts box by pulling it upward

Refrigerant recovered from the unit completely

Refrigerant not released in the air

Cycle charged with specified amount of refrigerant after service

Filter drier installed for service

Cylinder for R410A is a syphon type

Charging performed with the cylinder of syphon stood vertically

Upload a photo of the removed service panel

Upload a photo of the removed top panel

Remove the electrical parts box

Upload a photo of the removed electrical parts box

Remove 3 reactor fixing screws (4 ✕ 16) and remove the reactor

Upload a photo of the removed reactor

Sign off on the reactor disassembly

(1) Remove the service panel. (See figure 1.)

(2) Remove the top panel. (See figure 1.)

(3) Remove the electrical parts box. (See photo 3.)

[Removing the 4-way valve coil]

(4) Remove 4-way valve coil fixing screw (M4 ✕ 6).

(5) Remove the 4-way valve coil by sliding the coil toward you.

(6) Disconnect the connector 21S4 (green) on the controllern board in the electrical parts box.

[Removing the linear expansion valve coil]

(4) Remove the linear expansion valve coil by sliding the coil upward.

Upload a photo of the removed service panel

Disconnect the connectors, TH3 (white) and TH4 (white), on the controller circuit board in the electrical parts box

Upload a photo of the disconnected connectors

Loosen the clamp for the lead wire in the rear of the electrical parts box

Upload a photo of the loosened clamp

Pull out the thermistor <Outdoor pipe> (TH3) and thermistor <Discharge> (TH4) from the sensor holder

Upload a photo of the pulled out thermistors

Sign off on the thermistor disassemble