Black & Decker MUZ-FD12NA- Manuel d'utilisateur Page 1

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ··································· 32. PART NAMES AND FUNCTIONS ····················· 33. SPECIFICATION ··

10107-2. PERFORMANCE CURVE657075757065121068Indoor intake air DB temperature (°F)= 381 CFMAirflow15 25 35 45 55Outdoor intake air WB temperature (°F)0

11117-3. CONDENSING PRESSURECoolingData is based on the condition of indoor humidity 50 %.Air flow should be set to High speed.MUZ-FD12NA(PSIG)Condens

757065(PSIG) (PSIG)Condensing pressureOutdoor ambient temperature14 20 25 30 35 40 45 50 55 60 65 70(°F)220200180160140240260280320300340360380400Indo

13137-4. STANDARD OPERATION DATAModel MSZ-FD09NA MSZ-FD12NAItem Unit Cooling Heating Cooling Heating TotalCapacity Btu/h 9,000 10,900 12,000 13,600SHF

147-5. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCYCapacity correction factorsInput correction factorsInput correction factorsCapacity c

15158ACTUATOR CONTROLMUZ-FD09NAMUZ-FD12NA8-2. R.V. COIL CONTROLHeating . . . . . . . . . . . . . . . . . ON Cooling . . . . . . . . . . . . . . . . .

16SERVICE FUNCTIONS99-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> To change the defrost finish temperature, cut/sold

17Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

18Does POWER lamp on the indoor unit blink at the interval of 0.5 seconds?Blinks: The outdoor unit is abnormal. Beep is emitted at the same timing as

19 3. Outdoor unit failure mode tablePOWER lamp(Indoor unit) Abnormal point (Failure mode / protection) LED indication(Outdoor P.C. board) Conditio

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2010-3. TROUBLESHOOTING CHECK TABLENo. Symptom LED indication Abnormal point/ Condition Condition Correspondence 1Outdoor unit does not oper-ate. 1-t

21No. Symptom LED indication Abnormal point/ Condition Condition Correspondence 18Outdoor unit operates. 7-time fl ash 2.5 seconds OFF Low discharge t

22Part name Check method and criterion FigureDefrost thermistor (RT61) Ambient temperature thermistor (RT65)Outdoor heat ex-changer temperature ther

2310-5. TROUBLESHOOTING FLOWAre the voltages balanced?Disconnect the connector (CN61) between compressor and the intelligent power module (IPM).Replac

24 F Check of compressor start failure D Check of compressor winding E Check of compressor operation time●Disconnect the connector (CN61) between t

25Is the thermistor normal? (Refer to 10-6.1.)Reconnect the connector of thermistor.Turn ON the power supply and press EMERGENCY OPERATION switch. NoR

26 I Check of outdoor fan motorOutdoor fan motor does not operate. J Check of power supplyInverter does not operate.Is the outdoor fan motor normal?

27Press OPERATE/STOP (ON/OFF) button of the remote controller (the set temperature is displayed) with the remote controller headed towards the indoor

28Check the outdoor fan motor. (Refer to10-5. .)Is the fuse (F901) blown on the in-verter P.C. board?Check the connection of the connectors (CN932) of

29 M How to check miswiring and serial signal error (outdoor unit does not work)• Unit cannot operate neither by the remote controller nor by EMERGEN

331TECHNICAL CHANGESMUZ-FD09NAMUZ-FD12NAMUZ-FD09NA - U11. New modelPART NAMES AND FUNCTIONS2MUZ-FD09NAMUZ-FD12NAMUZ-FD12NA - U1Air outletDrain outletP

30 N Electromagnetic noise enters into TV sets or radiosYesIs the unit grounded?NoGround the unit.YesIs the distance between the antennas and the ind

3110-6. TEST POINT DIAGRAM AND VOLTAGE-4 14 32 50 68 86 1040102030405060708090100Temperature(°F)Defrost thermistor(RT61)Ambient temperature thermistor

32OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the screw fixing the service panel. (See Photo 1.)(2) Pull down the service panel and re

33OPERATING PROCEDUREPHOTOS2. Removing the inverter assembly, inverter P.C. board(1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the le

34OPERATING PROCEDUREPHOTOS5. Removing outdoor fan motor(1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the connectors for outdoor fan

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HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Copyright 2008 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistributed in Ja

443SPECIFICATIONOutdoor unit model MUZ-FD09NA MUZ-FD12NA Capacity Rated (Minimum~Maximum) Cooling 1Btu/h 9,000 (2,800~9,000) 12,000 (2,800~12,000)Hea

55Test conditionARI Mode Test Indoor air condition Outdoor air condition Dry bulb (°F) Wet bulb (°F) Dry bulb (°F) Wet bulb (°F) SEER (Cooling)

66OUTLINES AND DIMENSIONS4Unit: inchMUZ-FD09NAMUZ-FD12NALiquid pipe :1/4 (flared)Gas pipe :3/8 (flared) 6-23/3225-7/82-23/321-3/415-3/412 ~ 12-3/413

775WIRING DIAGRAMMUZ-FD09NA MUZ-FD12NA

86REFRIGERANT SYSTEM DIAGRAMUnit:inchMUZ-FD09NAMUZ-FD12NAOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62S

9DATA7MUZ-FD09NA MUZ-FD12NA7-1. PERFORMANCE DATA 1) COOLING CAPACITYModel Indoor air Outdoor intake air DB temperature (˚F) IWB 75 85 95 105 115(˚