107

OPERATING PROCEDURE	PHOTOS
3. Removing the electrical parts box	Photo 5

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

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

(3)	Remove the front panel. (See photo 1.)	Electrical parts box Controller circuit
(4)	Disconnect the indoor/outdoor connecting wire from	board (C.B.)
	terminal block.
(5)	Remove all the following connectors from controller circuit board;
	fan motor, linear expansion valve, thermistor<Outdoor pipe>,
	thermistor<Discharge>, thermistor<Outdoor 2-phase pipe>,
	thermistor<Outdoor>, high pressure switch, four-way valve
	and bypass valve.
	Pull out the disconnected wire from the electrical parts box.
	<Diagram symbol in the connector housing>
	• Fan motor (CNF1)

•Linear expansion valve (LEV-A)

•Thermistor <Outdoor pipe> (TH3)

• Thermistor <Discharge> (TH4)
• Thermistor <Outdoor 2-phase pipe, Outdoor> (TH6/7)
• High pressure switch (63H)	Electrical
(6) Remove the terminal cover and disconnect the compressor	parts box
lead wire.	fixing	Terminal block(TB1)
lead wire.	screw	Terminal block(TB1)
	screw

(7)Remove the electrical parts box fixing screws, 1 from the front, the right and the rear side, and detach the electrical parts box by pulling it upward.

4. Removing the thermistor <Outdoor 2-phase pipe> (TH6)		Photo 6
and thermistor <Outdoor pipe> (TH3)
(1)	Remove the service panel. (See photo 1.)
(2)	Remove the top panel. (See photo 1.)			Thermistor
(3)	Remove the front panel. (See photo 1.)		Electrical	<Outdoor 2-phase pipe>
(4)	Remove the conduit cover and cord cover.		parts box	(TH6)


(5)	Remove the back panel fixing screws, 4 from the right and
	3 from the rear side, and detach the back panel.
	(See photo 1.)

(6)Disconnect the connector TH3 (white) or TH6/7 (red) on the controller circuit board in the electrical parts box.

(7)Loosen the clamp for the lead wire in the rear of the

electrical parts box.
(8) Pull out the thermistor <Outdoor pipe> (TH3) and	Clamp
thermistor <Outdoor 2-phase pipe> (TH6) from the
sensor holder.

Note: Replace the thermistor <Outdoor 2-phase pipe> (TH6) and the thermistor <Outdoor> (TH7) together since they are combined.

Refer to No. 5. to remove the thermistor <Outdoor> (TH7).

Thermistor <Outdoor pipe> (TH3)

107 PUZ-A36NHA2-BS, PUY-A12NHA2, PUY-A42NHA2-BS, PUY-A30NHA2, PUZ-A36NHA2 specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, and their range of air conditioning units, including the PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2, exemplifies their commitment to innovation and energy efficiency. These models are designed to provide optimal climate control for both residential and commercial applications, ensuring comfort throughout the year.

One of the defining features of these models is their advanced inverter technology, which allows for precise temperature control and reduced energy consumption. The inverter technology adjusts the compressor speed according to the cooling load, significantly lowering operating costs compared to traditional fixed-speed systems. This means that users can enjoy consistent comfort without worrying about surging energy bills.

The PUY and PUZ units come equipped with powerful indoor and outdoor components that enable efficient heat exchange. These systems provide excellent performance even in extreme weather conditions, with reliable operation at low ambient temperatures. This capability ensures that you can maintain a comfortable environment, no matter the season.

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In summary, the Mitsubishi Electronics PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2 air conditioning units are equipped with cutting-edge technology, offering energy efficiency, quiet operation, and smart functionality. Whether for residential or commercial use, these units are designed to meet the demands of modern climate control while prioritizing energy savings and sustainability.

PHOTOS

3. Removing the electrical parts box

Photo 5

4. Removing the thermistor <Outdoor 2-phase pipe> (TH6)

Photo 6

and thermistor <Outdoor pipe> (TH3)

Refer to No. 5. to remove the thermistor <Outdoor> (TH7).

PUZ-A36NHA2-BS, PUY-A12NHA2, PUY-A42NHA2-BS, PUY-A30NHA2, PUZ-A36NHA2 specifications