Benutzeranleitung / Produktwartung MUZ-FD09NA- U1 des Produzenten Black & Decker
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SER VICE MANUAL CONTENTS 1. TECHNICAL CHANGES ··································· 3 2. P ART NAMES AND FUNCTIONS ····················· 3 3. SPECIFICA TION ················································ 4 4.
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3 3 1 TECHNICAL CHANGES MUZ-FD09NA MUZ-FD12NA MUZ-FD09NA - U1 1. New model P ART NAMES AND FUNCTIONS 2 MUZ-FD09NA MUZ-FD12NA MUZ-FD12NA - U1 Air outlet Drain outlet Piping Drain hose Air inlet.
4 4 3 SPECIFICA TION Outdoor unit model MUZ-FD09NA MUZ-FD12NA Capacity Rated (Minimum~Maximum) Cooling 1 Btu/h 9,000 (2,800~9,000) 12,000 (2,800~12,000) Heating 47 1 Btu/h 10,900 (3,000~18,000) 13,600.
5 5 T est condition ARI Mode T est Indoor air condition Outdoor air condition Dry bulb (°F) Wet bulb (°F) Dry bulb (°F) Wet bulb (°F) SEER (Cooling) "A" Cooling Steady State at rated com.
6 6 OUTLINES AND DIMENSIONS 4 Unit: inch MUZ-FD09NA MUZ-FD12NA Liquid pipe :1/4 (flared) Gas pipe :3/8 (flared) 6-23/32 2 5-7/8 2-23/32 1-3/4 15-3/4 12 ~ 12-3/4 13-9/16 1 1/16 1-9/16 7/8 21-5/8 11 - 1.
7 7 5 WIRING DIAGRAM MUZ-FD09NA MUZ-FD12NA.
8 6 REFRIGERANT SYSTEM DIAGRAM Unit:inch MUZ-FD09NA MUZ-FD12NA Outdoor heat exchanger Flared connection Defrost thermistor RT6 1 Discharge temperature thermistor RT6 2 Service port Service port Flared.
9 D ATA 7 MUZ-FD09NA MUZ-FD12NA 7-1. PERFORMANCE DA T A 1) COOLING CAP ACITY Model Indoor air Outdoor intake air DB temperature ( ˚ F) IWB 75 85 95 105 1 15 ( ˚ F) TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC MUZ-FD09NA 71 1 1.0 6.9 0.58 10.
10 10 7-2. PERFORMANCE CURVE 65 70 75 75 70 65 12 10 6 8 Indoor intake air DB tem perat ure (°F) = 381 CFM Airflow 15 25 35 45 55 Outdoor intake air WB temperature (°F) 0.4 0.6 0.8 Ind oor intake air DB temperat ure (°F) T otal power consumption (kW) T otal capacity (1 0 3 Btu/h) 65 70 75 75 70 65 20 18 16 14 8 6 12 10 1.
11 11 7-3. CONDENSING PRESSURE Cooling Data is based on the condition of indoor humidity 50 %. Air flow should be set to High speed. MUZ-FD12NA (PSIG) Condensing pressure 86 80 75 70 68 70 75 80 85 90.
75 70 65 (PSIG) (PSIG) Condensing pressure Outdoor ambient tem p erature 14 20 25 30 35 40 45 50 55 60 65 70 (°F) 220 200 180 160 140 240 260 280 320 300 340 360 380 400 Ind oor DB tem perat ure( °F.
13 13 7-4. ST ANDARD OPERA TION DA T A Model MSZ-FD09NA MSZ-FD12NA Item Unit Cooling Heating Cooling Heating T otal Capacity Btu/h 9,000 10,900 12,000 13,600 SHF — 0.
14 7-5. CAP ACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY Capacity correction factors Input correction factors Input correction factors Capacity correction factors Correction of Cooling capa.
15 15 8 ACTUA TOR CONTROL MUZ-FD09NA MUZ-FD12NA 8-2. R.V . COIL CONTROL Heating . . . . . . . . . . . . . . . . . ON Cooling . . . . . . . . . . . . . . . . . OFF Dry . . . . . . . . . . . . . . . . . . . . OFF NOTE : The 4-way valve reverses for 5 seconds right before start-up of the compressor .
16 SER VICE FUNCTIONS 9 9-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> T o change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P .
17 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (10-3.
18 Does 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 the blinking of POWER lamp. 2 Ye s (Blinks ) No (OFF) The outdoor unit might be abnormal. Con fi rm if outdoor unit is abnormal according to the following procedures.
19 3. Outdoor unit failure mode table POWER lamp (Indoor unit) Abnormal point (Failure mode / protection) LED indication (Outdoor P .C. board) Condition Correspondence Indoor/outdoor unit failure mode recall function Outdoor unit failure mode recall function OFF None (Normal) —— — — — 2-time fl ash 2.
20 10-3. TROUBLESHOOTING CHECK T ABLE No. Symptom LED indication Abnormal point/ Condition Condition Correspondence 1 Outdoor unit does not oper- ate. 1-time fl ash every 2.
21 No. Symptom LED indication Abnormal point/ Condition Condition Correspondence 18 Outdoor unit operates. 7-time fl ash 2.5 seconds OFF Low discharge tem- perature protection T emperature of discharge temperature thermistor has been 122 °F (50 °C) or less for 20 minutes.
22 Part name Check method and criterion Figure Defrost thermistor (RT61) Ambient temperature thermistor (RT65) Outdoor heat ex- changer temperature thermistor (RT68) Measure the resistance with a tester . Refer to 10-6. “T est point diagram and voltage”,1.
23 10-5. TROUBLESHOOTING FLOW Are the voltages balanced? Disconnect the connector (CN61) between compressor and the intelligent power module (IPM). Replace the inverter P .C. board. Check the voltage between terminals. Check the compressor . See 10-5.
24 F Check of compressor start failure D Check of compressor winding E Check of compressor operation time ● Disconnect the connector (CN61) between the compressor and intelligent power module, and measure the resistance between the compressor terminals.
25 Is the thermistor normal? (Refer to 10-6.1.) Reconnect the connector of thermistor . T urn ON the power supply and press EMERGENCY OPERA TION switch. No Replace the thermistor except RT64. When R T64 is abnormal, replace the inverter P .C. board. Does the unit operate for 10 minutes or more without showing thermistor abnormality? OK.
26 I Check of outdoor fan motor Outdoor fan motor does not operate. J Check of power supply Inverter does not operate. Is the outdoor fan motor normal? (Refer to 10-4.) Replace the outdoor fan motor . Disconnect CN932 from the inverter P .C. board, and measure the resistance of the outdoor fan motor .
27 Press OPERA TE/ST OP (ON/OFF) button of the remote controller (the set temperature is displayed) with the remote controller headed towards the indoor unit. 1 Expansion valve operates in full-opening direction. OK. NOTE : After check of LEV , do the undermentioned operations.
28 Check 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 the outdoor fan motor . If the connection is poor , make it correct. Operate the outdoor unit by starting EMERGENCY OPERA TION.
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 EMERGENCY OPERA TION switch. Indoor unit does not operate. • POWER lamp flashes ON and OFF in every 0.5 seconds.
30 N Electromagnetic noise enters into TV sets or radios Ye s Is the unit grounded? No Ground the unit. Ye s Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.
31 10-6. TEST POINT DIAGRAM AND VOL T AGE -4 14 32 50 68 86 104 0 10 20 30 40 50 60 70 80 90 100 T emperature(°F) Defrost thermistor(RT61) Ambient temperature thermistor(RT65) Outdoor heat exchanger .
32 OPERA TING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screw fixing the service panel. (See Photo 1.) (2) Pull down the service panel and remove it. (See Photo 1.) (3) Remove the screws fixing the conduit cover . (See Photo 2.) (4) Remove the conduit cover .
33 OPERA TING PROCEDURE PHOTOS 2. Removing the inverter assembly , inverter P .C. board (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the lead wire to the reactor and the following connectors; <Inverter P .C. board> CN721 (R.V .
34 OPERA TING PROCEDURE PHOTOS 5. Removing outdoor fan motor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the connectors for outdoor fan motor . (3) Remove the propeller nut. (See Photo 7.) (4) Remove the propeller . (See Photo 7.) (5) Remove the screws fixing the fan motor .
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HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAP AN Copyright 2008 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD Distributed in Jan. 2008. No. OBH498 7 Made in Japan New publication, effective Jan. 2008 Specifications subject to change without notice.
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