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Mitsubishi Electric MSZ-G09SV-E1 Service Manual

Split-type, heat pump air conditioners wireless type
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

Wireless type
Models
MSZ-G09SV -
MSZ-G12SV -
MUZ-G09SV -
( WH )
E1
MUZ-G12SV -
( WH )
E1
CONTENTS
1. PART NAMES AND FUNCTIONS······················2
2. SPECIFICATION·················································4
3. NOISE CRITERIA CURVES ·······························6
4. OUTLINES AND DIMENSIONS ·························7
5. WIRING DIAGRAM ············································9
6. REFRIGERANT SYSTEM DIAGRAM ··············12
7. PERFORMANCE CURVES ······························14
8. MICROPROCESSOR CONTROL ····················24
9. SERVICE FUNCTIONS ····································38
10. TROUBLESHOOTING······································40
11. DISASSEMBLY INSTRUCTIONS·····················58
12. PARTS LIST······················································62
13. OPTIONAL PARTS···········································66
2000
No. OB245
E1
E1

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Summary of Contents for Mitsubishi Electric MSZ-G09SV-E1

  • Page 1: Table Of Contents

    2000 SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS No. OB245 SERVICE MANUAL Wireless type Models MSZ-G09SV - MUZ-G09SV - ( WH ) MSZ-G12SV - MUZ-G12SV - ( WH ) CONTENTS 1. PART NAMES AND FUNCTIONS······················2 2. SPECIFICATION·················································4 3. NOISE CRITERIA CURVES ·······························6 4.

  • Page 2: Part Names And Functions

    PART NAMES AND FUNCTIONS MSZ-G09SV- MSZ-G12SV- INDOOR UNIT Grille Air cleaning filter(white bellows Air inlet type) Deodorizing filter to Breaker (gray sponge type) Air filter Power supply cord Front panel Remote control receiving section Vertical vanes Horizontal vane Remote controller Operation section Display section (When the grille is open)

  • Page 3: Remote Controller

    MSZ-G09SV- MSZ-G12SV- REMOTE CONTROLLER Signal transmitting section Operation display section CLOCK 6 00 1 1 00 OPERATE /STOP (ON /OFF)button ON/OFF COOL WARM OPERATION SELECT button TEMPERATURE buttons MODE I FEEL COOL DRY HEAT VANE FAN SPEED CONTROL button VANE CONTROL button ECONO COOL SWING ECONO COOL button...

  • Page 4: Specification

    SPECIFICATION MSZ-G12SV - MSZ-G09SV - Indoor model Cooling Heating Function Cooling Heating Single phase Single phase Power supply 230V,50Hz 230V,50Hz Capacity 3.5 (0.9-4.0) 2.6 (1.3-3.1) 3.6 (1.4-5.1) 4.8 (0.9-6.2) K /h Air flow(Hi) Capacity Dehumidification — — Power outlet Running current 4.54 5.50 7.40...

  • Page 5: Indoor Unit

    Specifications and rating conditions of main electric parts INDOOR UNIT Model MSZ-G09SV - MSZ-G12SV - Item 1.5+ 440V Indoor fan capacitor (C11) 250V 3.15A Fuse (F11) 93.5:5A 250V Thermal fuse (F12) MP24GA 12V 300" Vane motor (MV1, MV2) ERZV10D471 Varistor (NR11) S201DH1Y Solid state relay...

  • Page 6: Noise Criteria Curves

    NOISE CRITERIA CURVES MSZ-G09SV- MUZ-G09SV- NOTCH SPL(dB(A)) LINE NOTCH SPL(dB(A)) LINE FUNCTION FUNCTION COOLING COOLING HEATING HEATING Test conditions, Test conditions, Cooling : DB 27: WB 19: Cooling : DB 35: WB 24: Heating : DB 20: WB - : Heating : DB 7: WB 6: NC-70 NC-70...

  • Page 7: Outlines And Dimensions

    OUTLINES AND DIMENSIONS Unit: mm MSZ-G09SV- INDOOR UNIT Installation plate Indoor unit 81.5 116.5 Wall hole [65 Installation plate Liquid line [6.35-0.5m Gas line [9.52-0.43m Air in Insulation [37 O.D. [21 I.D. Drain hose [16 (Connected part O.D.) 17.5 Insulation [28 Air out Power supply cord Lead to right 1.0m...
  • Page 8 MUZ-G09SV- MUZ-G12SV- Unit: mm OUTDOOR UNIT REQUIRED SPACE Even if the right/ left sides or back side are vacant, the top has to be at least 100mm unobstructed. Drainage holes [28 Air in Drainage holes [28 However, either the left/ right sides or back side should be unobstructed.

  • Page 9: Wiring Diagram

    WIRING DIAGRAM MSZ-G09SV- MODELS WIRING DIAGRAM MSZ-G12SV- INDOOR UNIT RT13 TO OUTDOOR UNIT HIC1 CONNECTING RT12 CN112 CN201 NR11 230V~ TRANS SR141 CN211 LD101T RT11 ELECTRONIC CONTROL P.C. BOARD POWER SUPPLY CORD ~/N 230V POWER MONITOR, 50Hz RECEIVER P.C. BOARD REMOTE CONTROLLER CIRCUIT BREAKER...
  • Page 10 MUZ-G09SV- MODEL WIRING DIAGRAM OUTDOOR UNIT DSA61 LDE2 DS62 DS61 CN725 TAB69 TAB63 CT61 T801 TAB64 NOISE FILTER P.C. BOARD TAB66 LDE1 TAB65 TAB68 CN724 LD62 F901 CN642 LD64 230V ~ ELECTRONIC RELAY P.C. BOARD CONTROL P.C. BOARD CN721 CN771 6 5 4 3 2 1 CN641 CN601...
  • Page 11 MUZ-G12SV- MODEL WIRING DIAGRAM OUTDOOR UNIT DSA61 LDE2 DS62 DS61 CN725 TAB69 TAB63 CT61 T801 TAB64 NOISE FILTER P.C. BOARD TAB66 LDE1 TAB65 TAB68 CN724 LD62 F901 CN642 LD64 230V ~ ELECTRONIC RELAY P.C BOARD CONTROL P.C. BOARD CN771 6 5 4 3 2 1 CN721 CN601 CN641...

  • Page 12: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Unit : mm MSZ-G09SV - MUZ-G09SV - INDOOR UNIT OUTDOOR UNIT Refrigerant pipe [9.52 4-way valve (Option) (with heat insulator) Muffler Indoor coil Stop valve thermistor Indoor (with service port) RT12(main) heat Outdoor exchanger heat Flared connection Maffler Discharge exchanger...
  • Page 13 MAX. REFRIGERANT PIPING LENGTH Refrigerant piping Piping size O.D : mm Length of connecting pipe : m Model Max. length : m Liquid Outdoor unit Indoor unit 9.52 MSZ-G09SV - Gas 0.43 6.35 Liquid 0.5 12.7 MSZ-G12SV - MAX. HEIGHT DIFFERENCE Indoor unit w Max.

  • Page 14: Performance Curves

    PERFORMANCE CURVES MSZ-G09SV - MSZ-G12SV - The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions. Since operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
  • Page 15 Cooling capacity 11.5 11.6 10.5 10.6 MUZ-G09SV - MUZ-G09SV - Correction of Cooling capacity Correction of total input 150(Hz) 150(Hz) The operational frequency of compressor The operational frequency of compressor MUZ-G12SV - MUZ-G12SV - Correction of total input Correction of Cooling capacity 150(Hz) The operational frequency of compressor The operational frequency of compressor...
  • Page 16 Heating capacity NOTE:The above curves are for the heating operation without any frost. 28.0 29.3 25.9 27.1 23.7 24.8 21.6 22.6 19.4 20.3 17.2 18.1 15.1 15.8 12.9 13.5 MUZ-G09SV - MUZ-G09SV - Correction of Heating capacity Correction of total input 150(Hz) 150(Hz) The operational frequency of compressor...
  • Page 17 OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT How to operate with fixed operational frequency of the compressor. 1. Press the EMERGENCY OPERATION switch on the front of the indoor unit , and select either the COOL mode or the HEAT mode before starting to operate the air conditioner. 2.
  • Page 18 HEAT operation Condition Indoor : Dry bulb temperature 20.0: Outdoor : Dry bulb temperature 2 7 15 20.0: Wet bulb temperature 14.5: Wet bulb temperature 1 6 12 14.5: MUZ-G09SV - MUZ-G12SV - 58Hz 58Hz 230V 230V Ambient temperature(:) Ambient temperature(:)
  • Page 19 PERFORMANCE DATA COOL operation MSZ-G09SV - MUZ-G09SV - CAPACITY:2.6(KW) SHF:0.68 INPUT:940(W) OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 3.06 1.53 0.50 2.93 1.46 0.50 2.81 1.40 0.50 2.70 1.35 0.50 3.19 1.21 0.38 3.06 1.16 0.38 2.96 1.13 0.38...
  • Page 20 PERFORMANCE DATA COOL operation MSZ-G09SV - MUZ-G09SV - CAPACITY:2.6(KW) SHF:0.68 INPUT:940(W) OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 2.55 1.27 0.50 2.34 1.17 0.50 2.25 1.12 0.50 2.16 1.08 0.50 1015 2.68 1.02 0.38 2.50 0.95 0.38...
  • Page 21 PERFORMANCE DATA COOL operation MSZ-G12SV - MUZ-G12SV - CAPACITY:3.5(KW) SHF:0.67 INPUT:1290(W) OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 4.11 2.02 0.49 1032 3.94 1.93 0.49 1084 3.78 1.85 0.49 1135 3.64 1.78 0.49 1187...
  • Page 22 PERFORMANCE DATA COOL operation MSZ-G12SV - MUZ-G12SV - CAPACITY:3.5(KW) SHF:0.67 INPUT:1290(W) OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 3.43 1.68 0.49 1264 3.15 1.54 0.49 1342 3.03 1.48 0.49 1367 2.91 1.42 0.49 1393...
  • Page 23 PERFORMANCE DATA HEAT operation MSZ-G09SV - MUZ-G09SV - CAPACITY:3.6(KW) INPUT:1140(W) OUTDOOR DB(;) INDOOR DB(;) INPUT INPUT INPUT INPUT INPUT INPUT INPUT 2.27 2.74 3.20 1003 3.67 1083 4.14 1151 4.57 1186 5.04 1208 2.16 2.59 3.06 1049 3.49 1129 3.96 1186 4.39 1220...

  • Page 24: Microprocessor Control

    MICROPROCESSOR CONTROL MSZ-G09SV- MSZ-G12SV- Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP(ON/OFF) WIRELESS REMOTE CONTROLLER button ON. Indoor unit receives the signal with a beep tone. When the system turns off, 3-minute time delay will operate to protect system from overload and compressor will not restart for 3 minutes.
  • Page 25 4. The initial set temperature is decided by the initial room temperature. Model Initial room temperature Initial set temperature 26: or more COOL mode of "I FEEL CONTROL" 26: to 26: Initial room temperature minus 2: DRY mode of 23: to 25: Initial room temperature minus 2: "I FEEL CONTROL"...
  • Page 26 —DRY mode of “I FEEL CONTROL”— The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the room temperature. By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease. 1.
  • Page 27 (3) Warm air control. When the following any condition of 1(a. ~ d.) and the condition of 2 are satisfied at the same time, warm air control works. 1 a.) when the operation mode has been changed to HEAT mode b.) when cold air prevention has been released c.) when defrosting has been finished d.) when the compressor starts in HEAT mode...
  • Page 28 Time chart of defrost in HEAT mode (reverse type) horizontal normal normal Vertical vane Indoor fan VLo (temperature of indoor coil thermistor > 18:) normal STOP seconds <outdoor unit> 105Hz (MSZ-G09SV) MAX Hz 125Hz (MSZ-G12SV) MAX Hz Compressor normal second seconds seconds second...
  • Page 29 8-4. HEAT ( ) OPERATION (1) Press OPERATE/STOP(ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select HEAT mode with the OPERATION SELECT button. (3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button) to select the desired temperature. The setting range is 16 ~ 31°C.
  • Page 30 (5) Dew prevention During COOL or DRY operation with the vane angle at Angle 4 or 5 when the compressor cumulative operation time exceeds 1 hour, the vane angle automatically changes to Angle 1 for dew prevention. (6) SWING MODE ( SWING By pressing the SWING button ( ),vane swings horizontally.
  • Page 31 (8) ECONO COOL ( ) operation (ECONOmical operation) When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher than that in COOL mode. Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger(RT12). SWING operation makes you feel cooler than set temperature.
  • Page 32 PROGRAM TIMER The OFF timer and ON timer can be used in combination. “ ” and “ ” display shows the order of the OFF timer and ON timer operation. (Example 2) The current time is 11:00 AM. (Example 1) The current time is 8:00 PM. The unit turns on at 5:00 PM, and off at 9:00 PM.
  • Page 33 8-9. Operational frequency control of outdoor unit 1. Outline The operational frequency is decided by following: First, set the target operational frequency based on the difference between the room temperature and the set tempera- ture. Second, regulate the target operational frequency by discharge temperature protection, high pressure protection, electric current protection and overload protection and also by the maximum/minimum frequency.
  • Page 34 8-10. Electronic expansion valve control (LEV control) (1) Outline of LEV control The LEV basic control is comprised of setting LEV opening degree to the standard opening degrees set for each opera- tional frequency of the compressor. However, when any change in indoor/outdoor temperatures or other factors cause air conditioning load fluctuation, the LEV control also works to correct LEV opening degree based on discharge temper- ature (Shell temperature) of the compressor, developing the unit’s performance.
  • Page 35 (2) Time chart Air conditioner ON Air conditioner OFF Positioning (thermostat off) Opening degree is corrected according to discharge Standard Commanded temperature. opening to open degree Time 13 min. OFF Time (3) Control data (a) Reference value of target discharge temperature (Cooling :/ Heating :) MSZ-G09SV- 58/49...
  • Page 36 8-11. Outdoor fan motor control The AC fan motor turns ON/OFF, interlocking with the compressor. [ON] The AC fan motor turns on 5 seconds before the compressor starts up. [OFF] The AC fan motor turns off 15 seconds after the compressor stops running. 5 sec.
  • Page 37 8-13. Indoor fan motor control The detected rotational frequency of the fan motor is feed backed to the microprocessor and then the microprocessor works to keep the rotational frequency at a fixed value against load fluctuation. (1) Circuit block diagram Solid state relay output every 100Hz pulse output...

  • Page 38: Service Functions

    SERVICE FUNCTIONS MSZ-G09SV - MSZ-G12SV - 9-1. CHANGE IN DEFROST SETTING <JS> When the JS wire of the outdoor electronic control P.C. board is cut, the defrost temperature will be changed. (Refer to page 55.) Jumper wire Change point Deforst finish temperature changes from 13: to 15:. 9-2.
  • Page 39 9-4. AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C.board. The “AUTO RESTART FUNCTION” sets to work the moment the power has restored after power failure.

  • Page 40: Troubleshooting

    TROUBLESHOOTING MSZ-G09SV - MSZ-G12SV - 11-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 2. Take care the following during servicing. 1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the unit, and then after con- firming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.
  • Page 41 10-2. Troubleshooting procedure The following procedure facilitates identifying defective points. Details of OPERATION INDICATOR lamp flashing can be located on page 42 and 43. Start Indoor unit Indoor unit OPERATION INDICATOR operates. does'nt receive lamp on the indoor unit is Outdoor unit the signal from flashing on and off.
  • Page 42 1. Troubleshooting check table (Indoor unit troubleshooting check table) MSZ-G09SV - MSZ-G12SV - flashing Operation Indicator · Flashing of the operation indicator lamp (on the left-hand side) indicates possible abnormalities. · The operation indicator lamp (on the left-hand side) is lighting during normal operation. Symptom Operation indicator lamp Abnormal point...
  • Page 43 (Outdoor LED indication table) <Outdoor electronic control P.C. board> MUZ-G09SV - MUZ-G12SV - NOTE 1. The location of LED is illustrated at the right figure. Transistor Hybrid 2. LED lights up during normal operation. module flashing transformer Symptom LED indication Abnormal point Detection method Checkpoint...
  • Page 44 2. Checking mis-wiring and serial signal error Outdoor unit does not operate. When the OPERATION INDICATOR lamp (on the left-hand side) flashes on and off continuously or only once. 1. Turn OFF the power supply. 2. Turn ON the power supply. 3.
  • Page 45 3. Trouble shooting procedure of main parts (Simple check method of main parts) MSZ-G09SV - MUZ-G09SV - MSZ-G12SV - MUZ-G12SV - Part name Checking method and criterion Room tempera- Disconnect the connector and measure the resistance with a tester. ture thermistor (Part temperature : 10:~30:) (RT11) Normal...
  • Page 46 Part name Checking method and criterion Outdoor fan Measure the resistance between the terminals with a tester. motor (MF61) (Winding temperature : -10:~40:) Normal abnormal MUZ-G09SV MUZ-G12SV WHT-BLK 246"~302" 177"~217" Open or short circuit BLK-RED 174"~214" 308"~378" Measure the resistance between the RED terminal and the other ones. Vane motor (Winding temperature : 10:~30:) (MV1, MV2)
  • Page 47 How to check inverter/ compressor Disconnect the connector between compressor and transistor module. Check the voltage See B 'Check of open phase' on page 47. between terminals. Are voltages Check the resistance of transistor module. See C 'Check of transistor module' on page 47. balanced? Replace the outdoor Is resistance...
  • Page 48 Check of compressor Start E 'Check of compressor Replace the compressor. winding' on page 48. Is compressor normal? F 'Check of compressor Is the compressor operation time' on page operation time more than Replace the compressor. 48. Does the compressor 10 seconds? operate continuously? Check the refrigerant circuit.
  • Page 49 (How to check main parts) Check of indoor fan motor. Indoor fan does not operate. Replace the indoor fan motor. Yes(0 or ∞) Disconnect lead wires from CN 211 on indoor electronic Turn OFF the control P.C. board. Is resistance power supply and Measure resistance 0"(short circuit) or...
  • Page 50 Check of indoor electronic control P.C. board The unit does not operate with the remote controller. The OPERATION INDICATOR lamp does not light up either, with the EMERGENCY OPERATION switch ON. Check both “parts side” Turn OFF the power supply. and “pattern side”...
  • Page 51 Check of R.V. coil Cooling operates when heating is expected. First, measure resistance of the R.V. coil to check if it is defective or not. If the connector CN 721 is not connected or the R.V. coil is open, the voltage occurs between the terminals even when the control is OFF.
  • Page 52 (How to check power supply and others) Check of power supply. Inverter does not work. Outdoor terminal block Disconnect the connector between compressor and In-out transistor module. connecting Turn ON power supply to indoor wire unit and press EMERGENCY Repair wiring. OPERATION switch.
  • Page 53 Check of linear expansion valve (LEV) Heating/ Cooling do not operate. 1Press the EMERGENCY OPERATION switch. 2Turn OFF the power supply. 3Turn ON the power supply. With remote controller set toward the indoor unit, press OPERATE/ STOP(ON/ OFF) button and confirm one beep tone. LEV operates in full-opening direction.
  • Page 54 TEST POINT DIAGRAM AND VOLTAGE MSZ-G09SV - MSZ-G12SV - Indoor electronic control P.C. board Varistor (NR11) Fuse (F11) 250V AC 3.15A Fan motor power supply Power supply input 220- 240V AC Room temperature thermistor (RT11) Timer short mode point (JPG, JPS) (Refer to page 44.) Indoor coil thermistor (RT12)
  • Page 55 MUZ-G09SV - MUZ-G12SV - Outdoor electronic control P.C. board Defrost thermistor(RT61) Fin temperature thermistor(RT64) Discharge temperature thermistor(RT62) 90 100 110 120 10 20 30 40 50 60 70 80 Temperature(:) Temperature(:) Temperature(:) Discharge Defrost temperature temperature connector monitor thermistor thermistor thermistor (RT64) (CN724) lamp...
  • Page 56 MUZ-G09SV - Noise filter P.C. board Current -limit- ing relay (X64) Surge absorber (DSA61) Varistor (NR61) 230V AC MUZ-G12SV - Noise filter P.C. board Current -limit- ing relay (X64) Surge absorber (DSA61) Varistor (NR61) 230V AC...
  • Page 57 MUZ-G09SV - MUZ-G12SV - Relay P.C. board R.V. coil(21S4) 230V AC Outdoor fan motor (MF61) 230V AC...

  • Page 58: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In case of terminal with lock mechanism, detach the terminal as shown below. There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism. The terminal with no lock mechanism can be removed by pulling it out. Check the shape of the terminal and work.
  • Page 59 OPERATING PROCEDURE PHOTOS 3. Removing the electrical box Screw of the ground wire Photo 3 (1) Remove the front panel. (Refer to 1) (2) Remove the electrical cover. (Refer to 2) (3) Disconnect the connector of the indoor coil thermistor. (4) Disconnect the motor connector (CN211 and CN121) and the vane motor connector (CN151) on the electronic control P.C.
  • Page 60 11-2. MUZ-G09SV - MUZ-G12SV - OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Screws of the Photo 1 top panel (1) Remove the screws fixing the service panel. Screws (2) Pull down the service panel and remove it from the cabinet. of the (3) Remove the screws fixing the cabinet and top panel.
  • Page 61 OPERATING PROCEDURE PHOTOS 6. Removing the outdoor fan motor Photo 5 (1) Remove the service panel, top panel and the cabinet. (Refer to 1) Set screws of the (2) Disconnect the connector remove the clamp of fan motor outdoor fan motor Lead clamps lead wire.

  • Page 62: Parts List

    PARTS LIST MSZ-G09SV - (WH) MSZ-G12SV - (WH) 12-2. INDOOR UNIT HEAT EXCHANGER 12-1. INDOOR UNIT STRUCTURAL PARTS 4 (w) 13 (w) SCREW CATCH 3 (w) (w) These figures show about MSZ-G12SV. 12-1. INDOOR UNIT STRUCTURAL PARTS Symbol Q'ty/unit in Wiring Part No.

  • Page 63: Electrical Parts

    MSZ-G09SV - (WH) MSZ-G12SV - (WH) 12-4. ACCESSORY AND 12-3. INDOOR UNIT FUNCTIONAL PARTS AND REMOTE CONTROLLER PART ELECTRICAL PARTS SLEEVE BEARING ROOM TEMPERATURE THERMISTOR FUSE VARISTOR 12-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part numbers that are circled are not shown in the illustration. Symbol Q'ty/unit in Wiring...
  • Page 64 MUZ-G09SV - MUZ-G12SV - 12-5. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Symbol Q'ty/unit in Wiring Part No. Part Name Remarks MUZ-G09SV- MUZ-G12SV- Diagram T2W E56 521 GRILLE T2W E45 232 FRONT PANEL T2W E66 531 BACK PANEL...
  • Page 65 MUZ-G09SV - MUZ-G12SV - 12-6. OUTDOOR UNIT ELECTRICAL PARTS Part number that is circled is not shown in the illustration. Symbol Q'ty/unit in Wiring Part No. Part Name Remarks MUZ-G09SV- E1 MUZ-G12SV- E1 Diagram T2W E45 447 DIODE STACK DS61, DS62 ELECTRONIC CONTROL P.C.

  • Page 66: Optional Parts

    OPTIONAL PARTS 13-1. AIR CLEANING FILTER AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity. Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possible. Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.
  • Page 68 HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO C C Copyright 2000 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD New publication, effective Mar. 2000 Specifications subject to change without notice. Issued in. Mar. 2000 No. OB245 243 Printed in Japan...

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