Mitsubishi Electronics MUY-D36NA Temperature thermistor and ambient temperature, Thermistor, Muz

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OPERATING PROCEDURE

PHOTOS

4. Removing the defrost thermistor (MUZ), discharge

Photo 7

temperature thermistor, outdoor heat exchanger

Outdoor heat

temperature thermistor and ambient temperature

exchanger

thermistor

temperature

(1)

Remove the top panel, cabinet, service panel and the back

thermistor

 

panel. (Refer to 1.)

 

(2)

Disconnect the following connectors;

 

 

<Electronic control P.C. board>

 

 

CN661 (Discharge temperature thermistor, defrost therm-

Ambient

 

istor (MUZ) and outdoor heat exchanger tem-

 

temperature

 

perature thermistor)

 

thermistor

 

CN663 (Ambient temperature thermistor)

 

 

(3)

Pull out the defrost thermistor from its holder. (Photo 7)

 

 

(MUZ)

 

(4)

Pull out the discharge temperature thermistor from its hold-

 

 

er. (Photo 4)

 

(5)

Pull out the outdoor heat exchanger temperature thermistor

 

 

from its holder. (Photo 7)

 

(6)

Pull out the ambient temperature thermistor from its holder.

 

 

(Photo 7)

Defrost

 

 

 

 

thermistor

 

 

(for MUZ)

5. Removing outdoor fan motor

 

 

(1)

Remove the top panel, cabinet, service panel and the back

Photo 8

 

 

panel. (Refer to 1.)

 

 

Screws of the outdoor fan motor

(2)

Disconnect the following connectors;

Propeller

 

 

 

<Electronic control P.C. board>

 

 

 

 

 

CN931 and CN932 (Fan motor)

 

 

(3)Remove the propeller.

(4)Remove the screws fixing the outdoor fan motor.

(5)Remove the outdoor fan motor.

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Contents Outdoor Unit Page Part Names and Functions Technical ChangesHspf TotalCOP TNB220FMCHTSeer Operating RangeARI Required Space Outlines and DimensionsWiring Diagram MUY-D30NA MUY-D36NA LEV Refrigerant System DiagramMAX. Refrigerant Piping Length and MAX. Height Difference Performance Data Cooling Capacity DataMUZ-D30NA MUZ-D36NA MUY-D30NA Performance Curve CoolingMUY-D36NA HeatingCondensing Pressure Cooling 380 420 340 300 26068 100 105F MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA Standard Operation DataInput correction factors Test RUN Operation How to operate fixed-frequency operation Outdoor FAN Motor Control Actuator ControlR.V. Coil Control MUZ Relation between main sensor and actuatorPRE-HEAT Control Service FunctionsChange in Defrost Setting Take care of the following during servicing TroubleshootingFailure Mode Recall Function Operational procedure Outdoor unit failure mode table LED LED1 LED2 Troubleshooting Check TableMUZ YLW BRN BLK WHT WHT REDTroubleshooting Flow How to check inverter/ compressorCheck of outdoor thermistors Heating operation does not work Check of R.V. coil MUZ-D30/36Check of outdoor fan motor Check of power supplyCheck of LEV Check of compressor start failureHow to check miswiring and serial signal error Check of HPS Electromagnetic noise enters into TV sets or radios Outdoor electronic control P.C. board Test Point Diagram and VoltageNoise filter P.C. board CN2 Outdoor power boardCN3 CN5Removing the cabinet Photo Disassembly InstructionsHPS Photo 5 Inverter assemblyRemoving R.V. coil MUZ Thermistor Temperature thermistor and ambient temperatureRemoving outdoor fan motor MUZRemoving the reactor Removing the compressor and 4-way valve PhotoPage Specifications subject to change without notice

MUY-D36NA, MUZ-D30NA, U1, MUY-D30NA, MUZ-D36NA specifications

Mitsubishi Electronics has long been at the forefront of innovation in heating and cooling solutions, and its latest lineup of multi-zone air conditioning units—MUZ-D36NA, MUY-D30NA, U1, MUZ-D30NA, and MUY-D36NA—reflects this commitment to quality and efficiency. Designed for both residential and commercial applications, these units offer advanced features that enhance comfort and energy savings.

One of the standout characteristics of these models is their energy efficiency. Each unit is equipped with high SEER (Seasonal Energy Efficiency Ratio) ratings, making them ideal for users looking to reduce energy consumption while maintaining optimal indoor climates. The efficiency is complemented by inverter technology, which allows the compressor to adjust its speed based on the cooling demand. This results in a smoother operation, reduced noise levels, and significant energy savings over time.

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Mitsubishi's advanced climate control technologies set these models apart. The system can be easily controlled using a user-friendly remote or via a mobile app, offering convenience and flexibility. The intelligent temperature control ensures that rooms are heated or cooled consistently, regardless of external conditions.

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Furthermore, the MUZ-D and MUY-D series are equipped with quiet operation features, ensuring minimal disruption in both residential and commercial settings. This is particularly beneficial in spaces where noise could be a concern, such as bedrooms or conference rooms.

In summary, Mitsubishi's MUZ-D36NA, MUY-D30NA, U1, MUZ-D30NA, and MUY-D36NA offer a powerful combination of energy efficiency, advanced filtration, intelligent controls, and quiet operation. These features make them an excellent choice for anyone looking to enhance indoor comfort while minimizing environmental impact. Whether it's for a single room or an entire building, these units are engineered to deliver reliable performance year-round.