Mitsubishi Electronics MUZ-GB50VA Ture thermistor and ambient temperature thermistor

Page 36

 

OPERATING PROCEDURE

PHOTOS

4. Removing the defrost thermistor, discharge temper-

Photo 5

ature thermistor, outdoor heat exchanger tempera-

Discharge temperature thermistor

ture thermistor and ambient temperature thermistor

 

(1)

Remove the top panel, cabinet and service panel.

 

 

(Refer to 1.)

 

(2)

Remove the back panel. (Refer to 1.)

 

(3)

Remove the inverter assembly. (Refer to 2.)

 

(4)

Pull out the defrost thermistor from its holder. (Photo 6)

 

(5)Pull out the discharge temperature thermistor from its holder. (Photo 5)

(6)Pull out the outdoor heat exchanger temperature thermistor from its holder. (Photo 6)

(7)Pull out the ambient temperature thermistor from its holder. (Photo 6)

Photo 6

Outdoor heat exchanger

Ambient

temperature thermistor

temperature

 

 

thermistor

 

Defrost

 

thermistor

 

 

5. Removing outdoor fan motor

Photo 7

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

Screws of the outdoor fan motor

(Refer to 1.)

 

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

(3)Remove the inverter assembly. (Refer to 2.)

(4)Remove the propeller.

(5)Remove the screws fixing the fan motor.

(6)Remove the fan motor.

Propeller

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Image 36
Contents R410A Refrigerant OBR01 Contents Revised EDITION-ATechnical Changes MUZ-GA50VA E1SNB130FLDH SNB130FLDH1Specification AccessoriesPart Names and Functions MUZ-GB50VASpecifications and rating conditions of main electric parts Noise Criteria Curves Band OctaveOutlines and Dimensions MUZ-GB50VA Outdoor UnitWiring Diagram Outdoor Unit MUZ-GB50VARefrigerant System Diagram UnitmmPerformance Curves Indoor Unit Outdoor UnitCapacity and input curves Test RUN Operation How to operate fixed-frequency operation MUZ-GB50VACool operation MSZ-GB50VA MUZ-GB50VA Performance Data Cool operation Rated frequency 79HzOutdoor SHC SHF InputOutdoor DB Actuator Control Performance Data Heat operationOutdoor fan motor control R.V. coil controlTroubleshooting Relation between main sensor and actuator MUZ-GB50Failure mode recall function OFFOperational procedure Outdoor unit failure mode table Time flash Communication error Lighting Instruction of troubleshooting IndicatorOperation EmergencyTroubleshooting check table MUZ-GB50VA Operate Lightning Twice Outdoor power systemOnce Lighting Trouble criterion of main parts MUZ-GB50VA RED BLK BLK WHTWHT RED RED ORNHow to check inverter/ compressor Troubleshooting flowCheck of outdoor thermistors When heating operation does not work Check of R.V. coilCheck of power supply Check of outdoor fan motorCheck of current-limiting resistor Check of LEVParts side Electromagnetic noise enters into TV sets or radios Discharge temperature thermistor RT62 Noise filter P.C. board Outdoor power board CN2CN3 CN5Disassembly Instructions MUZ-GB50VA Outdoor Unit Operating Procedure PhotosRemoving the cabinet Photo Operating Procedure Photos Removing R.V. coilTure thermistor and ambient temperature thermistor Removing outdoor fan motor PhotoRemoving the compressor and 4-way valve Photo Removing the reactorRoHS Parts List RoHS compliant MUZ-GB MUZ-GB50VA Accessory MUZ-GB50