Mitsubishi Electric MUZ-FH06NA Service Manual

Outdoor unit

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OUTDOOR UNIT

SERVICE MANUAL

Models

MUZ-FH06NA

MUZ-FH09NA

MUZ-FH12NA

MUZ-FH15NA

MUZ-FH18NA

MUZ-FH18NA2

MUZ-FH06NA

MUZ-FH09NA

MUZ-FH12NA

NOTE:

RoHS compliant products have <G> mark on the spec name plate.

MUZ-FH06NAH

MUZ-FH09NAH

MUZ-FH12NAH

Revision C:

• MUZ-FH06NA, MUZ-FH09/12NA-

FH18NA2, MUZ-FH06NAH, MUZ-

FH09/12NAH-

have been added.

Please void OBH684 REVISED EDITION-B.

HFC

utilized

R410A

MUZ-FH06NAH

MUZ-FH09NAH

MUZ-FH12NAH

MUZ-FH15NAH

MUZ-FH18NAH

MUZ-FH18NAH2

Indoor unit service manual

MSZ-FH•NA Series (OBH683)

CONTENTS

1. TECHNICAL CHANGES ······························2

2. PART NAMES AND FUNCTIONS ··················3

3. SPECIFICATION ········································4

4. OUTLINES AND DIMENSIONS ·····················6

5. WIRING DIAGRAM ·····································8

6. REFRIGERANT SYSTEM DIAGRAM ··········· 14

7. DATA······················································ 16

8. ACTUATOR CONTROL ····························· 27

9. SERVICE FUNCTIONS ······························ 28

10. TROUBLESHOOTING ······························· 29

11. DISASSEMBLY INSTRUCTIONS ················· 51

PARTS CATALOG (OBB684)

, MUZ-

and MUZ-FH18NAH2

No. OBH684

REVISED EDITION-C

Table of Contents

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Summary of Contents for Mitsubishi Electric MUZ-FH06NA

Page 1: Table Of Contents
Revision C: • MUZ-FH06NA, MUZ-FH09/12NA- , MUZ- FH18NA2, MUZ-FH06NAH, MUZ- FH09/12NAH- and MUZ-FH18NAH2 have been added. Please void OBH684 REVISED EDITION-B. OUTDOOR UNIT No. OBH684 SERVICE MANUAL REVISED EDITION-C utilized R410A Models MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH...
Page 2: Technical Changes
• 3. SPECIFICATION has been modified. (The values of COP have been modified.) • 10. TROUBLESHOOTING has been modified. Revision B: • MUZ-FH18NA and MUZ-FH18NAH have been added. Revision C: • MUZ-FH06NA, MUZ-FH09/12NA- , MUZ-FH18NA2, MUZ-FH06NAH, MUZ-FH09/12NAH- and MUZ-FH18NAH2 have been added. TECHNICAL CHANGES MUZ-FH09NA...
Page 3: Part Names And Functions
PART NAMES AND FUNCTIONS MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH Air inlet (back and side) Piping Air outlet Drain hose Drain outlet MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 Air inlet (back and side) Piping Drain hose Air outlet Drain outlet...
Page 4: Specification
SPECIFICATION MUZ-FH06NA MUZ-FH09NA MUZ-FH12NA MUZ-FH15NA MUZ-FH18NA MUZ-FH18NA2 Outdoor unit model MUZ-FH06NAH MUZ-FH09NAH MUZ-FH12NAH MUZ-FH15NAH MUZ-FH18NAH MUZ-FH18NAH2 6,000 9,000 12,000 15,000 17,200 Btu/h Cooling 1 (1,700 ~ 9,000) (1,700 ~ 12,000) (2,500 ~ 13,600) (6,450 ~ 19,000) (6,450 ~ 21,000) Capacity...
Page 5 Test condition 3, 4 Indoor air condition (°F) Outdoor air condition (°F) Mode Test Dry bulb Wet bulb Dry bulb Wet bulb "A-2" Cooling Steady State (75) at rated compressor Speed "B-2" Cooling Steady State (65) at rated compressor Speed SEER "B-1"...
Page 6: Outlines And Dimensions
OUTLINES AND DIMENSIONS MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH Unit: inch REQUIRED SPACE 4 in. (100 mm) or more when front and sides of the unit are clear (MUZ-FH06/09/12NA) (MUZ-FH06/09/12NAH) When any 2 sides of left, right and rear of the unit are clear...
Page 7 MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 Unit: inch REQUIRED SPACE *1 20 in. (500 mm) or more when front and sides of the unit are clear 16-7/16 Air in 1-9/16 Air in Air out 2 x hole 13/32 x 13/16 6-7/8 19-11/16 *2 When any 2 sides of left, right...
Page 8: Wiring Diagram
WIRING DIAGRAM MUZ-FH06NA MUZ-FH09NA- MUZ-FH12NA- MUZ-FH06NAH MUZ-FH09NAH- MUZ-FH12NAH- OBH684C...
Page 9 MUZ-FH09NA MUZ-FH12NA MUZ-FH09NAH MUZ-FH12NAH OBH684C...
Page 10 MUZ-FH15NA MUZ-FH18NA OBH684C...
Page 11 MUZ-FH18NA2 OBH684C...
Page 12 MUZ-FH15NAH MUZ-FH18NAH OBH684C...
Page 13 MUZ-FH18NAH2 OBH684C...
Page 14: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH Unit: inch Refrigerant pipe ø3/8 4-way valve (with heat insulator) Muffler Outdoor heat exchanger Stop valve temperature thermistor Outdoor Muffler Discharge RT68 heat Flared connection Service exchanger temperature Service port thermistor...
Page 15 MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE Refrigerant piping: ft. Piping size O.D: in. Model Max. Length Max. Height difference Liquid MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 Indoor unit Max. Height difference Max. Length Outdoor unit ADDITIONAL REFRIGERANT CHARGE (R410A: oz.)
Page 16: Data
DATA MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 7-1. PERFORMANCE DATA 1) COOLING CAPACITY Indoor air Outdoor intake air DB temperature (˚F) Model IWB (˚F) SHC TPC SHC TPC SHC TPC SHC TPC SHC TPC 0.28...
Page 17 Outdoor intake air WB temperature (˚F) Model IDB (˚F) 0.32 0.41 0.48 0.53 0.56 0.57 0.59 0.31 0.39 0.47 0.52 0.55 0.56 10.1 0.58 MUZ-FH06NA 0.29 0.38 0.45 0.50 0.53 0.54 10.4 0.57 0.45 0.53 0.60 0.53 0.55 0.56 0.58 0.44 0.52 0.59...
Page 18 Cooling Cooling capacity (at Rated frequency) Indoor intake air Wet-bulb temperature( F) Outdoor intake air DB temperature(°F) MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH SHF at rating condition = 0.92 SHF at rating condition = 0.96 Airflow = 381 CFM = 381 CFM Airflow Outdoor intake air DB temperature (°F)
Page 19 Heating Heating capacity (at Rated frequency) Outdoor intake air WB temperature (°F) MUZ-FH06NA MUZ-FH06NAH = 437 CFM = 437 CFM Airflow Airflow Outdoor intake air WB temperature (°F) Outdoor intake air WB temperature (°F) MUZ-FH09NA MUZ-FH09NAH = 437 CFM = 437 CFM...
Page 20 This value of frequency is not the same as the actual frequency in operating. Refer to 7-5 and 7-6 for the relationships between frequency and capacity. 7-3. CONDENSING PRESSURE Cooling Data are based on the condition of indoor humidity 50 %. Air flow should be set to High speed. MUZ-FH06NA MUZ-FH06NAH (PSIG) (PSIG) 100 105 (°F) 100 105 (°F)
Page 21 MUZ-FH12NA MUZ-FH12NAH (PSIG) (PSIG) 100 105 (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-FH15NA MUZ-FH15NAH (PSIG) (PSIG) (°F) (°F) 100 105 Outdoor ambient temperature Outdoor ambient temperature MUZ-FH18NA MUZ-FH18NAH (PSIG) (PSIG) (°F) (°F) 100 105 Outdoor ambient temperature Outdoor ambient temperature MUZ-FH18NA2 MUZ-FH18NAH2 (PSIG) (PSIG)
Page 22 Heating Data are based on the condition of outdoor humidity 75%. Air flow should be set to High speed. Data are for heating operation without any frost. MUZ-FH06NA MUZ-FH06NAH (PSIG) (PSIG) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-FH09NA MUZ-FH09NAH...
Page 23 MUZ-FH18NA MUZ-FH18NAH (PSIG) (PSIG) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-FH18NA2 MUZ-FH18NAH2 (PSIG) (PSIG) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature OBH684C...
Page 24 208/230, 1, 60 Input 0.029 0.029 0.029 0.031 0.033 0.033 Fan motor current 0.30/0.27 0.30/0.27 0.30/0.27 0.31/0.28 0.34/0.31 0.34/0.31 MUZ-FH06NA MUZ-FH09NA MUZ-FH12NA MUZ-FH15NA MUZ-FH18NA MUZ-FH18NA2 Outdoor unit MUZ-FH06NAH MUZ-FH09NAH MUZ-FH12NAH MUZ-FH15NAH MUZ-FH18NAH MUZ-FH18NAH2 Power supply phase, 208/230, 1, 60 Input 0.243 0.475 0.531 0.681 0.841 0.921 1.169 1.269 1.397 1.687 1.342 1.687...
Page 25 7-5. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY MUZ-FH06NA MUZ-FH06NAH Correction of Cooling capacity Correction of Cooling total input Correction of Heating total input Correction of Heating capacity (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor...
Page 26 MUZ-FH18NA MUZ-FH18NAH Correction of Cooling capacity Correction of Cooling total input Correction of Heating total input Correction of Heating capacity (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor MUZ-FH18NA2 MUZ-FH18NAH2 Correction of Cooling capacity Correction of Cooling total input...
Page 27: Actuator Control
ACTUATOR CONTROL MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 8-1. OUTDOOR FAN MOTOR CONTROL The fan motor turns ON/OFF, interlocking with the compressor. [ON] The fan motor turns ON 5 seconds before the compressor starts up.
Page 28: Service Functions
SERVICE FUNCTIONS MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 9-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> To change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P.C. board (Refer to 10-6.1.).
Page 29: Troubleshooting
TROUBLESHOOTING MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 10-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for miswiring. 2. Take care of the following during servicing 1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, then after con- firming the horizontal vane is closed, turn off the breaker and/or disconnect the power plug.
Page 30 10-2. FAILURE MODE RECALL FUNCTION 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.) disappears, the memorized failure details can be recalled. 1.
Page 31 2. Flow chart of the detailed outdoor unit failure mode recall function Operational procedure The outdoor unit might be abnormal. Check if outdoor unit is abnormal according to the following procedures. Make sure that the remote controller is set to the failure mode recall function. 1.
Page 32 3. Outdoor unit failure mode table The left lamp of the Indoor/outdoor Outdoor unit OPERATION Abnormal point LED indication unit failure Condition Remedy failure mode INDICATOR (Failure mode/protection) (Outdoor P.C. board) mode recall recall function lamp function (Indoor unit) None (Normal) —...
Page 33 The left lamp of the Indoor/outdoor Outdoor unit OPERATION Abnormal point LED indication unit failure Condition Remedy failure mode INDICATOR (Failure mode/protection) (Outdoor P.C. board) mode recall recall function lamp function (Indoor unit) 10-time ﬂ ash Discharge temperature Temperature of discharge temperature •...
Page 34 10-3. TROUBLESHOOTING CHECK TABLE Abnormal point/ Symptom LED indication Condition Remedy Condition Outdoor unit 1-time ﬂ ash every Outdoor power sys- Overcurrent protection cut-out operates 3 consecutive times • Reconnect connector of compres- does not op- 2.5 seconds within 1 minute after the compressor gets started. sor.
Page 35 Abnormal point/ Symptom LED indication Condition Remedy Condition Outdoor unit 1-time ﬂ ash Frequency drop by FH06/09/12 When the input current exceeds approximately The unit is normal, but check the operates. 2.5 seconds OFF current protection 10A (FH06/09)/10.5A (FH12), compressor fre- following.
Page 36 10-4. TROUBLE CRITERION OF MAIN PARTS MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 Part name Check method and criterion Figure Defrost thermistor (RT61) Fin temperature thermistor (RT64) Measure the resistance with a tester. Ambient temperature Refer to 10-6.
Page 37 10-5. TROUBLESHOOTING FLOW A How to check inverter/compressor Disconnect the connector between the compressor and the power module (IC700) (MUZ-FH06/09/12)/ IGBT module (IC700) (MUZ-FH15/18). See 10-5. “Check of open phase”. Check the voltage between terminals. Are the voltages balanced? Replace the inverter P.C. board. Check the compressor.
Page 38 D Check of compressor winding ●Disconnect the connector between the compressor and the power module (IC700) (MUZ-FH06/09/12)/IGBT module (IC700) (MUZ-FH15/18), and measure the resistance between the compressor terminals. <<Measurement point>> At 3 points BLK-WHT Measure the resistance between the lead wires at 3 points. BLK-RED WHT-RED <<Judgement>>...
Page 39 G Check of outdoor thermistors Disconnect the connector of thermistor in the inverter P.C. board (see below table), and measure the resistance of thermistor. Replace the thermistor except RT64. Is the resistance of thermistor normal? When RT64 is abnormal, replace the inverter P.C. (Refer to 10-6.1.) board.
Page 40 H Check of R.V. coil MUZ-FH06/09/12 First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to 10-4. In case CN721 is disconnected or R.V. coil is open, voltage is generated between the terminal pins of the connector although no signal is being transmitted to R.V.
Page 41 I Check of outdoor fan motor Disconnect the connectors CN931 and CN932 from the inverter P.C. board. Check the connection between the connector CN931 and CN932. Is the resistance between each ter- minal of outdoor fan motor normal? (Refer to 10-4.) Disconnect CN932 from the inverter P.C.
Page 42 J Check of power supply Disconnect the connector between the compressor and the power module (IC700) (MUZ-FH06/09/12)/IGBT module (IC700) (MUZ-FH15/18). Rectify indoor/outdoor Turn ON power supply and press connecting wire. EMERGENCY OPERATION switch. Does the left lamp of the Is there voltage 208/230 VAC Replace the indoor OPERATION INDICATOR lamp on between the indoor terminal...
Page 43 K Check of LEV (Expansion valve) Turn ON the power supply. <Preparation of the remote controller> While pressing both OPERATION SELECT button and TEMP button on the remote controller at the same time, press RESET button. First, release RESET button. Hold down the other 2 buttons for another 3 seconds.
Page 44 L Check of inverter P.C. board Check the outdoor fan motor. (Refer to 10-5. .) Is the fuse (F901) blown on the in- verter P.C. board? Check the connection of the connectors (CN931, CN932) of the outdoor fan motor. If the connection is poor, make it correct. Operate the outdoor unit by starting EMERGENCY OPERATION.
Page 45 M How to check miswiring and serial signal error NOTE: Refer to the indoor unit service manual. Turn OFF the power supply. Is there rated voltage in the power supply? Check the power supply. Turn ON the power supply. Is there rated voltage between the outdoor terminal block S1 and S2? Check the wiring.
Page 46 N Check of defrost heater MUZ-FH06NAH MUZ-FH09NAH MUZ-FH12NAH MUZ-FH15NAH MUZ-FH18NAH MUZ-FH18NAH2 Check the following points before checking electric continuity. 1. Does the resistance of ambient temperature thermistor have the characteristics? Refer to 10-6.1. 2. Is the resistance of defrost heater normal? Refer to 10-4. 3.
Page 47 P Electromagnetic noise enters into TV sets or radios Is the unit grounded? Ground the unit. Is the distance between the antennas Extend the distance between the antennas and and the indoor unit within 9.91 ft. (3m), the indoor unit, and/or the antennas and the or is the distance between the antennas outdoor unit.
Page 48 10-6. TEST POINT DIAGRAM AND VOLTAGE 1. Inverter P.C. board MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA- MUZ-FH09NAH- MUZ-FH12NA- MUZ-FH12NAH- Heater connector R.V.coil (CN722) Smoothing (CN721) Smoothing DB61 Back side of unit (MUZ-FH06NAH capacitor (C62) 208/230 VAC capacitor (C61) 260 - 370 VDC MUZ-FH09/12NAH-...
Page 49 MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH Smoothing Smoothing R.V.coil Heater connector capacitor capacitor (CN721) DB61 (CN722) (MUZ- Back side of unit (C62) (C61) 208/230 VAC 260 - 370 VDC FH09/12NAH) Fuse (F701) Fuse (F801) 208/230 VAC T3.15AL250V T3.15AL250V Fuse (F901) T3.15AL250V Output to drive outdoor fan motor (CN932)
Page 50 MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NA2 Fuse (F601) T3.15AL250V MUZ-FH18NAH MUZ-FH18NAH2 R.V. coil (CN602) 208/230 VAC Heater connector (CN601) 208/230 VAC (MUZ-FH15NAH MUZ-FH18NAH(2)) Signal of out- door fan motor (CN931) LEV connector (CN724) Output to drive outdoor fan motor Defrost thermistor (CN932) /RT61 (CN671) Discharge temperature thermistor/RT62...
Page 51: Disassembly Instructions
Pull the terminal while pull out the terminal pushing the locking slowly. Locking lever lever. Connector 11-1. MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screw fixing the service panel.
Page 52 OPERATING PROCEDURE PHOTOS Photo 4 Photo 5 Screws of the Screw of the conduit cover conduit plate 2. Removing the inverter assembly, inverter P.C. board Photo 6 (1) Remove the cabinet and panels. (Refer to 1.) Screws of the heat sink (2) Disconnect the lead wire to the reactor and the following support and the separator connectors:...
Page 53 OPERATING PROCEDURE PHOTOS Screw of the 4. Removing the discharge temperature thermistor, Photo 8 R.V. coil defrost thermistor, outdoor heat exchanger tempera- ture thermistor and ambient temperature thermistor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the lead wire to the reactor and the following con- nectors: <Inverter P.C.
Page 54 OPERATING PROCEDURE PHOTOS 5. Removing outdoor fan motor Photo 11 Screws of the outdoor fan motor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the following connectors: <Inverter P.C. board> CN931, CN932 (Fan motor) (3) Remove the propeller fan nut. (4) Remove the propeller fan.
Page 55 11-2. MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2 NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the service panel. Screws of the top panel (2) Remove the screws of the top panel. (3) Remove the screw of the valve cover.
Page 56 OPERATING PROCEDURE PHOTOS Screw of the 2. Removing the inverter assembly, inverter P.C. board Photo 5 relay panel and relay P.C. board Screws of the (1) Remove the cabinet and panels. (Refer to 1.) P.B. support Inverter P.C. Ground wires (2) Disconnect the lead wire to the reactor and the following con- board nectors:...
Page 57 OPERATING PROCEDURE PHOTOS 4. Removing the discharge temperature thermistor, Photo 7 Outdoor heat exchanger Ambient temperature defrost thermistor, outdoor heat exchanger tempera- temperature thermistor thermistor ture thermistor and ambient temperature thermistor (1) Remove the cabinet and panels. (Refer to 1.) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.
Page 58 HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN © Copyright 2014 MITSUBISHI ELECTRIC CORPORATION Distributed in Oct. 2015. No. OBH684 REVISED EDITION-C Distributed in Dec. 2014. No. OBH684 REVISED EDITION-B Distributed in Apr. 2014. No. OBH684 REVISED EDITION-A New publication, effective Oct.

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Mitsubishi Electric MUZ-FH06NA Service Manual

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