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

Models: MUZ-FD09NA MUZ-FD09NA- U1 MUZ-FD12NA- U1 MUZ-FD12NA

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

Contents

Wireless type Models CONTENTSR410A PARTS CATALOG OBB498Page MUZ-FD09NA MUZ-FD12NA 1 TECHNICAL CHANGES2 PART NAMES AND FUNCTIONS MUZ-FD09NA MUZ-FD12NA MUZ-FD09NA- MUZ-FD12NAMUZ-FD12NA SPECIFICATIONMUZ-FD09NA OPERATING RANGE 1 POWER SUPPLYTest condition 2 OPERATIONormore 4 OUTLINES AND DIMENSIONSREQUIRED SPACE MUZ-FD09NA MUZ-FD12NAMUZ-FD09NA MUZ-FD12NA 5 WIRING DIAGRAMADDITIONAL REFRIGERANT CHARGE R410A oz REFRIGERANT SYSTEM DIAGRAMMUZ-FD09NA MUZ-FD12NAMUZ-FD09NA MUZ-FD12NA DATAHeating 7-2.PERFORMANCE CURVE CoolingMUZ-FD09NA MUZ-FD12NAMUZ-FD12NA 7-3.CONDENSING PRESSURE CoolingMUZ-FD09NA Data is for heating operation without any frost MSZ-FD09NA 7-4.STANDARD OPERATION DATAMSZ-FD09NA MSZ-FD12NAMUZ-FD12NA MUZ-FD09NA8-2.R.V. COIL CONTROL 8 ACTUATOR CONTROLMUZ-FD09NA MUZ-FD12NA 8-1.OUTDOOR FAN MOTOR CONTROLMUZ-FD09NA MUZ-FD12NA 9 SERVICE FUNCTIONS10 TROUBLESHOOTING MUZ-FD09VA MUZ-FD12VA10-2.FAILURE MODE RECALL FUNCTION Operational procedure 3. Outdoor unit failure mode table 10-3.TROUBLESHOOTING CHECK TABLE Symptom Part name 10-5.TROUBLESHOOTING FLOW A How to check inverter/ compressorB Check of open phase C Check of compressorF Check of compressor start failure D Check of compressor windingE Check of compressor operation time The thermistors in the outdoor unit are abnormal G Check of outdoor thermistorsH Check of R.V. coil POWER lamp flashes 6-timeInverter does not operate J Check of power supplyI Check of outdoor fan motor Outdoor fan motor does not operateHeating/Cooling does not work sufficiently K Check of LEV Expansion valveL Check of inverter P.C. board Turn OFF the power supply Is the unit grounded? Yes 1. Inverter P.C. board 10-6.TEST POINT DIAGRAM AND VOLTAGEMUZ-FD09NA MUZ-FD12NAPHOTOS 11 DISASSEMBLY INSTRUCTIONSOPERATING PROCEDURE 11-1. MUZ-FD09NA MUZ-FD12NAground wire OPERATING PROCEDUREPhoto 4 inverter assembly 4. Removing the discharge temperature thermistorPhoto OPERATING PROCEDUREPHOTOS 5. Removing outdoor fan motorPage Made in Japan Specifications subject to change without noticeNew publication, effective Jan Distributed in Jan. 2008. No. OBH498