Mitsubishi Electric MXZ-32SV Service Manual Download Page 42 | Manualshive

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42

1

No.

Parts Name

Symbol

in Wiring

Diagram

Parts No.

Q'ty / unit

Remarks

E1

MXZ-32SV

T2W E59 704

DRAIN SOCKET ASSEMBLY

1

DRAIN SOCKET

O

1

DRAIN CAP

O

2

E2

1

14-3. ACCESSORY PARTS

1

MXZ-32SV -
MXZ-32SV -

E2

E1

OB254-2.qxp 03.1.16 4:39 PM Page 42

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Summary of Contents for MXZ-32SV

Page 1: ... MICROPROCESSOR CONTROL 19 12 TROUBLESHOOTING 25 13 DISASSEMBLY INSTRUCTIONS 37 14 PARTS LIST 40 15 OPTIONAL PARTS 43 Inverter controlled multi system Model MXZ 32SV MXZ 32SV E2 E1 No OB254 REVISED EDITION A This manual describes technical data of outdoor unit For indoor unit refer to the service manuals No OB229 OB227 REVISED EDITION B OB252 OB212 OB239 and OC165 of corresponding models Model ind...

Page 2: ...re switch Disuse of suction pipe temperature thermistor MXZ 32SV MXZ 32SV 1 Combinations of the connectable indoor units have increased 2 Noise filter P C board has changed to improve the capacity for protecting the inverter controlled circuit when the voltage higher than the rated one is aupplied with the inverter controlled circuit 3 Noise filter P C board for E1 and E2 are not interchangeable 4...

Page 3: ...7 09 18 07 12 12 07 12 18 07 18 18 09 09 09 09 09 12 09 09 18 09 12 12 09 12 18 09 18 18 12 12 12 12 12 18 07 07 07 07 07 07 07 09 07 07 07 12 07 07 07 18 07 07 09 09 07 07 09 12 07 07 09 18 07 07 12 12 07 07 12 18 07 09 09 09 07 09 09 12 07 09 09 18 07 09 12 12 09 09 09 09 09 09 09 12 09 09 09 18 09 09 12 12 NOTE SLH 1AR is equivalent to class 09 9000BTU MCFH 13NV SEH 1 6AR SLH 1 6AR is equivalen...

Page 4: ...9 0 0 75 0 26 0 93 0 90 0 26 1 04 1 44 0 26 1 70 2 30 0 26 2 98 1 54 0 58 1 96 1 62 0 58 2 05 2 28 0 58 2 51 3 09 0 58 3 65 1 90 0 58 2 18 2 73 0 58 3 22 3 74 0 58 4 56 3 96 0 58 4 90 3 96 0 58 4 90 3 96 0 58 4 90 2 20 0 70 3 65 2 43 0 70 4 11 2 98 0 70 4 27 2 98 0 70 4 27 2 80 0 70 4 23 2 98 0 70 4 27 2 98 0 70 4 27 2 98 0 70 4 27 2 98 0 70 4 27 2 98 0 70 4 27 2 2 2 8 3 8 4 2 2 8 3 6 4 0 3 1 3 6 ...

Page 5: ...7 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 98 0 80 4 27 2 0 2 4 2 9 3 5 2 2 2 8 3 2 2 6 3 0 2 1 2 7 3 1 2 45 2 0 2 6 3 0 2 35 2 67 3 4 3 8 3 0 3 4 3 1 2 67 3 1 2 0 1 87 1 7 1 5 2 2 2 0 1 8 2 6 2 4 2 ...

Page 6: ... 9 3 2 1 11 6 9 3 2 1 11 6 9 3 2 1 11 6 9 3 2 1 11 6 9 3 2 1 11 6 9 3 2 1 11 6 1 13 0 27 1 60 1 32 0 27 1 70 1 91 0 27 2 57 2 30 0 27 2 83 1 93 0 48 2 30 2 05 0 48 2 68 2 55 0 48 3 80 2 68 0 48 3 89 2 35 0 48 3 56 2 62 0 48 3 86 2 78 0 48 3 98 2 78 0 48 3 98 2 78 0 48 3 98 2 78 0 48 3 98 2 42 0 52 3 00 2 50 0 52 3 30 2 78 0 52 3 50 2 78 0 52 3 50 2 78 0 52 3 50 2 78 0 52 3 50 2 78 0 52 3 50 2 78 0...

Page 7: ...3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 78 0 60 3 50 2 32 2 7 3 6 3 9 2 55 3 4 3 75 3 05 3 3 2 45 3 25 3 65 2 9 2 32 3 15 3 45 2 8 3 1 4 0 4 4 3 5 3 8 3 65 3 1 3 5 2 32 2 2 1 9 1 8 2 55 2 3 2 1...

Page 8: ...65 Thermistor RT66 67 Thermistor RT68 69 kW R h K h A A W A kW W A A A W mm kg dB rpm kg cc k k k k k k Compressor Electrical data Fan motor Special remarks Capacity System Coefficient of performance C O P Outdoor unit power supply MXZ 32SV E1 MXZ 32SV E2 Single phase 220 240V 50Hz 2 to 4 Total model name 42 Total model name 42 Max 60 Max 25 10 10 2400 2640 25 90 0 15 05 13 80 0 6 THV 247FBA ROTAR...

Page 9: ...RESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL 0dB 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz Test conditions Cooling DB35 WB24 Heating DB 7 WB 6 COOL 220V NOTCH COOL 240V HEAT 220V HEAT 240V 45 SPL dB A 47 46 48 LINE MXZ 32SV E1 MXZ 32SV E2 ...

Page 10: ...00 More than 100 More than 500 More than 500 More than 100 More than 100 More than 350 Base bollt length Less than 25 More than 350 More than 350 Service space Air in 2 U shape notched holes Base bolt M10 Base bolt M10 Air in Air out 200 200 387 355 27 40 16 16 500 Veranda Base Rubber cushion More than 500 Note Leave front and both sides clearance fully Note Obsacle on front and rear sid only The ...

Page 11: ...mboles below indicate Terminal block Connector POWER SUPPLY N 220 240V 50Hz INDOOR UNIT A CIRCUIT BRAKER TB1 TB2 BLU RED X64 GRN YLW GRN CN720 CN601 0 4 X64 LD62 CN913 CN791 CN901 6 4 2 CN902 CN851 CN852 MF61 21S4 1 2 2 1 2 1 1 2 1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6 7 1 2 3 4 5 6 C65 LD63 LD64 LDB LDB LD61 LDE L61 F911 SSR61 X63 X62 X61 1 6 L N 3 N INDOOR UNIT B BLU ORN CN602 1 2 3 3 3 N INDOOR UNIT C ...

Page 12: ...its H 10m Bending point for each unit 25 Total bending point 60 It does not matter which unit is higher a b c d Outdoor unit Indoor units H H H Indoor unit D Ball valve with service port Ball valve with service port Distributor Strainer Strainer LEV Oil separator Compressor High pressure switch 1 Accumulator Capillary tube Reversing valve Discharge temperature thermistor Evaporation temperature th...

Page 13: ...ference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers to the indoor air outlet The thermometers must be attached to the position where air speed is high 2 Attach at least 2 sets of wet and dry bulb thermometers to the outdoor air intake Cover the thermometers to prevent direct rays of t...

Page 14: ... 0 1 5 2 0 Frequency COOL Total input Hz 0 50 100 150 0 5 1 0 1 5 HEAT Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 Frequency HEAT Total input Hz 0 50 100 150 0 5 1 0 1 5 COOL Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 2 0 Frequency COOL Total input Hz 0 50 100 150 0 5 1 0 1 5 HEAT Capacity Frequency Hz 0 50 100 150 0 5 1 0 1 5 Frequency HEAT Total input Hz 0 50 100 150 0 5 1 0 1 5 COOL Capa...

Page 15: ... be gotten according to the formula below 1 MPa G 10 2 kgf f f G 1 COOL operation 1Both indoor and outdoor units are under the same temperature humidity condition Dry bulb temperature C Relative humidity 20 50 25 60 30 70 How to work fixed frequency operation 1 Set emergency switch to COOL or HEAT The switch is locat ed on indoor unit 2 Press emergency run ON OFF button 3 Compressor starts running...

Page 16: ...ss emergency run ON OFF button 3 Compressor starts running at rated frequency 4 Indoor fan runs at HI speed and continues for 30 minutes 5 To cancel this operation press emergency run ON OFF button or any button on remote controller 2Air flow speed HI 3Inverter output frequency 33Hz Indoor Outdoor Set air flow to Hi speed Inverter output frequency is 45Hz 2 HEAT operation DB C 20 0 WB C 14 5 DB C ...

Page 17: ...ss emergency run ON OFF button 3 Compressor starts running at rated frequency 4 Indoor fan runs at HI speed and continues for 30 minutes 5 To cancel this operation press emergency run ON OFF button or any button on remote controller 2Air flow speed HI 3Inverter output frequency 33Hz Indoor Outdoor Set air flow to Hi speed Inverter output frequency is 45Hz 2 HEAT operation DB C 20 0 WB C 14 5 DB C ...

Page 18: ...door unit 2 Press emergency run ON OFF button 3 Compressor starts running at rated frequency 4 Indoor fan runs at HI speed 5 To cancel this operation press emergency run ON OFF button or any button on remote controller Air flow speed HI Inverter output frequency 33Hz Indoor Outdoor Set air flow to Hi speed Inverter output frequency is 45Hz 2 HEAT operation DB C 20 0 WB C 14 5 DB C 2 7 15 20 0 WB C...

Page 19: ...2 Discharge temperature thermistor RT61 Indoor Unit A Evaporation temperature thermistor RT63 Outdoor fan motor MF61 x 61 x 62 x 63 Defrost thermistor RT62 LEV1 LEV2 LEV3 LEV4 Indoor Unit B Indoor Unit C Indoor Unit D Outdoor unit control microprocessor Compressor primary current Compressor secondary current Fin temperature thermistor RT65 R V coil 21S4 H P S 63H1 Input signal Output signal MXZ 32...

Page 20: ...operation adjustment in accordance with intake super heat discharge temperature is included in standard opening w1 Note LEV opening in each frequency at DRY operation and COOL operation is the same However velocity and compressor operation frequency controls are different See 11 2 Operational frequency range As far as the indoor unit velocity control goes refer to DRY operation in MICROPROCESSOR C...

Page 21: ...ow Super heat Gas pipe temperature thermistor Evaporation temperature thermistor 2 Select a minimum super heat from among them 3 Correct an each LEV is corrected opening is corrected by difference between each super heat and minimum super heat 1 Suction super heat MIN gas pipe temperature thermistor Evaporation temperature thermistor 2 Each correction w 1 Each gas pipe temperature thermistor Evapo...

Page 22: ...discharge temperature and discharge temperature DRY Min Max Rated Min Max Defrost Rated Note When the fan speed of indoor unit is total Lo notch restrict the maximum frequency is restricted in 6 7 of the rated frequency DRY COOL COOL HEAT Number of operating unit 1 2 3 4 2 3 4 5 6 7 8 3 4 5 6 7 8 9 4 5 6 7 8 9 10 18 20 30 40 40 52 68 85 80 105 110 120 120 24 33 46 82 70 80 90 93 101 25 40 58 58 18...

Page 23: ...otection control is Released 2 High pressure protection control by high pressure switch H P S High pressure switch controls the operation frequency and outdoor fan motor Control status When high pressure switch is ON When discharge pipe pressure is 2 75 MPa or more Control details a When cooling or drying The protection control decreases the compressor frequency at the speed of 10Hz a minute The c...

Page 24: ...eed is switched according to a number of operating indoor unit and the compressor frequency Note When operation fan speed of Hi Low mode changes to VHi Hi mode by promoting those fan speeds respectively by 1 step after defrosting is operated This control is cleared when the compressor off When overheat protection of P C board temperature or fin temperature operates the outdoor fan speed is fixed t...

Page 25: ...ore removing the front panel the cabinet the top panel and the electronic con trol P C board 3 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the components 4 When connecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires 12 2 Instruction of troubleshooting Operation start Check the outdoor un...

Page 26: ...ge 31 Check the amount of gas Check the indoor outdoor air flow for short cycle Check the indoor unit air filter for clogging Discharge temperature over heat protection When the discharge temperature thermistor detects 116 C or above the compressor stops and restarts operation in 3 minutes Protection will be released at 100 or below Check the amount of gas and the refriger ant cycle Check the outd...

Page 27: ... discharge temperature exceeds 110 C the compressor oper ates at reduced frequency Frequency drop by high pres sure switch protection When the high pressure exceeds 2 75MPa 28 kgf cm2 G the com pressor operates at reduced frequency In addition the fan speed changes Amount of gas Outdoor unit air passage Low discharge temperature protection When the state with low discharge temperature of which 50 ...

Page 28: ...esistance using a tester Part temperature 10 C 40 C R V coil Measure the resistance using a tester Part temperature 10 C 40 C Linear expansion valve Lead wire color Normal WHT RED RED ORN YLW BRN BRN BLU Abnormal Opened or short circuited Measure the resistance using a tester Part temperature 10 C 40 C High pressure switch HPS Pressure Normal abnormal Operation OFF HPS1 2 35 0 15MPa 24 1 5kg cm2 H...

Page 29: ...ction of connector CN720 in the outdoor electronic control P C board A A Check of power supply No Yes Start 1 Check the indoor unit with referring to the indoor unit service manual 2 Turn off the power supply of the indoor and outdoor unit and return the indoor outdoor unit connecting wire to former original 3 Check the connection of indoor outdoor unit connecting wire in the outdoor unit terminal...

Page 30: ...ise filter P C board and measure the resistance of R V coil to check the integrity Start 1 Disconnect the lead wire leading to the compressor 2 Turn on power supply to the indoor and outdoor unit three minutes later EMERGENCY OPERATION COOL operation starts Is there voltage of 220V AC 240V AC between pin1 and pin 2 at connector CN913 1 Turn off power supply of indoor and outdoor unit and disconnec...

Page 31: ... supply of indoor and outdoor unit and measure the compressor winding resistance between the compressor terminals Is there resistance of 0 27 to 0 34 between the each terminals Replace the electronic control P C board with the I P M P C board Return the lead wire of compressor to former and turn on power supply to indoor and outdoor unit Three minutes later EMERGENCY OPERATION starts 1 Turn off po...

Page 32: ...tronic control P C board G G Check of fan motor Abnormal Normal Yes No No Yes No Yes Start Check the connection of connector CN851 CN852 in the fan motor relay connector and electronic control P C board at the noise filter P C board and connector CN901 CN902 in the noise filter board Disconnect the fan motor connector and measure the resistance of the fan motor winding to check the winding charact...

Page 33: ...sure switch can be operated once First of all check the high pressure switch can be shorted turn OFF the power and turn ON again 1 minute later Indoor unit dose not operate difference modes When you try to run two indoor unit simultaneously one for cooling and the other for heating the unit which transmits signal to the outdoor units earlier decides the operation mode The other unit indicates as s...

Page 34: ... temperature thermistor 0 3 0 6V DC Defrost temperature thermistor 2 5 4 0V DC 12V DC 5V DC 0 5V DC LED monitor indication Gas pipe temperature thermistor 2 5 4 0V DC Room A Room D Room C Room B High pressure switch Liner expansion valve LEV 12V DC pulse wave Outdoor fan Me 12V DC R V coil 12V DC Outdoor fan Lo 12V DC Outdoor fan ON 12V DC Serial signal Room A 5 10V DC Serial signal Room B 5 10V D...

Page 35: ... C board MXZ 32SV E1 220V 240V AC OUTPUT 220V 240V AC INPUT OUTDOOR FAN 220V 240V AC REVERSING VALVE 220V 240V AC MXZ 32SV E2 OUTDOOR FAN 230V AC REVERSING VALVE 230V AC 230V AC OUTPUT 230V AC INPUT FUSE 3 15A VARISTOR ...

Page 36: ...36 I P M P C board MXZ 32SV MXZ 32SV E2 E1 Relay P C board MXZ 32SV MXZ 32SV E2 E1 Short 12V DC High pressure switch 12V DC 12V DC 12V DC 320V DC ...

Page 37: ...N722 and CN661 Disconnect the noise filter P C board connectors CN913 6 Remove the four screws of the electrical parts and remove them 7 Remove the propeller 8 Remove the screws of the separator and remove it 9 Detach the brazed joints of the compressor suction and dis charge pipes See Photo 3 10 Remove the three compressor nuts and remove the com pressor Photo 1 Top panel Service panel Front pane...

Page 38: ...sion valve 1 Remove the service panel See Photo 1 Gas release is not required if the unit is pumped down 2 Remove the coil of linear expansion valve 3 Detach the brazed joint of linear expansion valve and pipe 4 way valve R V coil Brazing Points LEV coils Linear expansion valves Photo 4 Photo 5 2 Removing the fan motor 1 Remove the top panel five screws the service panel four screws and the front ...

Page 39: ... PROCEDURE PHOTOS 5 Removing the reactor 1 Remove the five screws of the top panel and remove it See Photo 1 2 Disconnect the reactor lead wire 3 Remove the two screws of the reactor and take it out Reactor Photo 6 ...

Page 40: ...OOTHING CAPACITOR ELECTRONIC CONTROL P C BOARD NOISE FILTER P C BOARD NOISE FILTER P C BOARD TERMINAL BLOCK TERMINAL BLOCK RELAY GAS PIPE TEMPERATUR THERMISTOR FIN TEMPERATURE THERMISTOR RESISTOR RESISTOR THERMISTOR SET R V COIL RELAY P C BOARD FUSE FUSE VARISTOR SET MF61 DS62 DS61 L C61 C62 C63 X64 RT66 67 68 69 RT65 R RT61 62 63 21S4 F801 F911 F912 NR63 1 1 1 1 1 1 1 2 1 1 4 1 1 1 1 1 1 1 1 2 No...

Page 41: ...LY UNION PIPE COVER REAR PANEL 4 WAY VALVE HIGH PRESSURE SWICH TOP PANEL REAR GUARD HEAT EXCHANGER SIDE PANEL HIGH PRESSURE SWICH CAPILLARY TUBE 4 0O 2 4O2000 CAPILLARY TUBE SET 3 0O 2 0O200 CAPILLARY TUBE 2 5O 0 6O1000 MC LEV D LEV C LEV B LEV A 63H1 63H2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 4 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 4 2 No Parts Name Symbol in Wir...

Page 42: ...42 1 No Parts Name Symbol in Wiring Diagram Parts No Q ty unit Remarks E1 MXZ 32SV T2W E59 704 DRAIN SOCKET ASSEMBLY 1 DRAIN SOCKET O1 DRAIN CAP O2 E2 1 14 3 ACCESSORY PARTS 1 MXZ 32SV MXZ 32SV E2 E1 ...

Page 43: ...A 69 65 66 5 Length B 9 52 3 8 12 7 1 2 12 7 1 2 12 7 1 2 9 52 3 8 15 88 5 8 Length C 9 52 12 7 3 8 1 2 12 7 9 52 1 2 3 8 12 7 15 88 1 2 5 8 B A C 15 OPTIONAL PARTS 15 2 Outlet guide Changes air discharge direction Applied unit Model name Model code MXZ 32SV MAC 855SG 51H 855 610 4 534 534 386 416 51 8 150 109 4 29 2 760 8 760 8 29 2 6 4 6 4 832 386 Punxhed hole Punxhed hole 5 6 5 6 MAC 855SG ...

Page 44: ...ING CO LTD Distributed in Jan 2003 No OB254 REVISED EDITION A 7 Reprinted in Feb 2002 No OB254 12 Reprinted in Dec 2001 No OB254 5 Reprinted in Dec 2001 No OB254 50 Reprinted in Feb 2001 No OB254 10 Distributed in May 2000 No OB254 523 Made in Japan HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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