Black & Decker MUZ-FD12NA- U1, MUZ-FD09NA- U1 service manual

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Contents MUZ-FD09NA MUZ-FD09NA- U1 MUZ-FD12NA MUZ-FD12NA- U1 Page Part Names and Functions Technical ChangesMUZ-FD09NA MUZ-FD12NA SpecificationOperating Range Test conditionRequired Space Outlines and DimensionsWiring Diagram MAX. Refrigerant Piping Length and MAX. Height Difference Refrigerant System DiagramData MUZ-FD09NA Performance Curve CoolingMUZ-FD09NA MUZ-FD12NA HeatingCondensing pressure Condensing Pressure Cooling65 70F MSZ-FD09NA MSZ-FD12NA Standard Operation DataCorrection of Heating capacity Test RUN Operation How to operate fixed-frequency operationRelation Between Main Sensor and Actuator Actuator ControlOutdoor FAN Motor Control R.V. Coil ControlPRE-HEAT Control Setting Service FunctionsTroubleshooting Change in Defrost SettingOFF Failure Mode Recall FunctionOperational procedure Outdoor unit failure mode table Troubleshooting Check Table Page WHT RED Trouble Criterion of Main Parts MUZ-FD09NAMUZ-FD12NACheck of compressor How to check inverter/ compressorCheck of open phase Troubleshooting FlowCheck of compressor start failure Check of compressor windingCheck of compressor operation time Check of R.V. coil 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 outdoor thermistorsCheck of outdoor fan motor Check of power supplyCheck of LEV Expansion valve Emergency Operation Check of inverter P.C. boardPage Outdoor unit Electromagnetic noise enters into TV sets or radiosInverter P.C. board Test Point Diagram and VoltageRemoving the cabinet Photo Disassembly InstructionsRemoving R.V. coil Removing the inverter assembly, inverter P.C. board PhotoPhoto 4 inverter assembly Photo Removing the discharge temperature thermistorRemoving the compressor and 4-way valve Removing outdoor fan motor PhotoPage New publication, effective Jan