Mitsubishi Electronics MUZ-FD09NA service manual Removing outdoor fan motor Photo

Page 34

 

OPERATING PROCEDURE

PHOTOS

5. Removing outdoor fan motor

Photo 6

(1)

Remove the cabinet and panels. (Refer to 1.)

Outdoor heat

(2)

Disconnect the connectors for outdoor fan motor.

(3)

Remove the propeller nut. (See Photo 7.)

exchanger tempera-

(4)

Remove the propeller. (See Photo 7.)

ture thermistor

(5)Remove the screws fixing the fan motor. (See Photo 7.)

(6)Remove the fan motor.

6. Removing the compressor and 4-way valve

 

 

(1)

Remove the cabinet and panels. (Refer to 1.)

 

 

 

Defrost thermistor

(2)

Remove the inverter assembly. (Refer to 2.)

 

 

 

(3)

Recover gas from the refrigerant circuit.

 

 

 

NOTE: Recover gas from the pipes until the pressure

 

 

 

gauge shows 0 PSIG.

 

 

 

Photo 7

Screws of the outdoor fan motor

(4)Detach the welded part of the suction and the discharge pipe connected with compressor.

(5)Remove the nuts of compressor legs.

(6)Remove the compressor.

(7)Detach the welded part of pipes connected with 4-way

valve. (See Photo 8.)

 

 

Propeller nut

Propeller

 

 

 

Photo 8

Welded parts of 4-way valve

34

Image 34
Contents MUZ-FD09NA MUZ-FD09NA- U1 MUZ-FD12NA MUZ-FD12NA- U1 Page Technical Changes Part Names and FunctionsSpecification MUZ-FD09NA MUZ-FD12NATest condition Operating RangeOutlines and Dimensions Required SpaceWiring Diagram Refrigerant System Diagram MAX. Refrigerant Piping Length and MAX. Height DifferenceData Heating Performance Curve CoolingMUZ-FD09NA MUZ-FD12NA MUZ-FD09NACondensing Pressure Cooling Condensing pressure65 70F Standard Operation Data MSZ-FD09NA MSZ-FD12NATest RUN Operation How to operate fixed-frequency operation Correction of Heating capacityR.V. Coil Control Actuator ControlOutdoor FAN Motor Control Relation Between Main Sensor and ActuatorChange in Defrost Setting Service FunctionsTroubleshooting PRE-HEAT Control SettingFailure Mode Recall Function OFFOperational procedure Outdoor unit failure mode table Troubleshooting Check Table Page Trouble Criterion of Main Parts MUZ-FD09NAMUZ-FD12NA WHT REDTroubleshooting Flow How to check inverter/ compressorCheck of open phase Check of compressorCheck of compressor operation time Check of compressor windingCheck of compressor start failure Check of outdoor thermistors Unit operates Cool mode even if it is set to Heat modeUnit operates Heat mode even if it is set to Cool mode Check of R.V. coilCheck of power supply Check of outdoor fan motorCheck of LEV Expansion valve Check of inverter P.C. board Emergency OperationPage Electromagnetic noise enters into TV sets or radios Outdoor unitTest Point Diagram and Voltage Inverter P.C. boardDisassembly Instructions Removing the cabinet PhotoPhoto Removing the discharge temperature thermistor Removing the inverter assembly, inverter P.C. board PhotoPhoto 4 inverter assembly Removing R.V. coilRemoving outdoor fan motor Photo Removing the compressor and 4-way valvePage New publication, effective Jan
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MUZ-FD09NA specifications

The Mitsubishi Electronics MUZ-FD09NA is a highly efficient and versatile air conditioning unit designed for both residential and light commercial applications. This model is part of Mitsubishi's advanced range of split-system air conditioners which emphasize energy efficiency, comfort, and innovative technology.

One of the standout features of the MUZ-FD09NA is its energy efficiency. The unit boasts an impressive SEER (Seasonal Energy Efficiency Ratio) rating, which translates to reduced energy consumption and lower utility bills. This makes it an eco-friendly option for users looking to minimize their carbon footprint while enjoying comfortable indoor climates year-round.

The MUZ-FD09NA utilizes advanced inverter technology, which enables the compressor to adjust its speed based on the cooling or heating demand. This not only enhances comfort by maintaining a steady temperature but also significantly reduces energy consumption compared to traditional fixed-speed systems. Additionally, the inverter technology allows for quieter operation, making it ideal for use in bedrooms or study areas where noise can be disruptive.

For air purification, the MUZ-FD09NA is equipped with a high-efficiency filtration system that removes dust, allergens, and other particles from the air. This feature is especially beneficial for individuals with allergies or respiratory issues, ensuring cleaner and healthier indoor air quality.

In terms of user convenience, the unit comes with a user-friendly remote control, allowing for easy adjustment of settings from a distance. Some models may also offer Wi-Fi capability, enabling users to control their air conditioning unit through a smart device, even when away from home.

The MUZ-FD09NA is designed to operate in a wide range of temperatures, making it suitable for various climates. It can effectively provide cooling in the summer and heating in the winter, ensuring comfort throughout the year.

Furthermore, the unit features a compact and sleek design, allowing for easy installation in a variety of spaces without compromising aesthetics.

Overall, the Mitsubishi Electronics MUZ-FD09NA combines energy efficiency, advanced technology, and user-friendly features, making it a reliable choice for maintaining a comfortable indoor environment. Whether for residential or light commercial use, this air conditioning unit stands out as an effective solution for climate control needs.