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Mitsubishi Electric MSZ-SF25VE, Руководство по обслуживанию

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3

TECHNICAL CHANGES

1

MSZ-SF25VE-

E1

 MSZ-SF25VE-

EN1

MSZ-SF35VE-

E1

 MSZ-SF35VE-

EN1

MSZ-SF42VE-

E1

 MSZ-SF42VE-

EN1

MSZ-SF50VE-

E1

 MSZ-SF50VE-

EN1

 1. New model

MSZ-SF25VE-

E1

     

MSZ-SF25VE-

E2

 MSZ-SF25VE-

EN1

     

MSZ-SF25VE-

EN2

MSZ-SF35VE-

E1

     

MSZ-SF35VE-

E2

 MSZ-SF35VE-

EN1

     

MSZ-SF35VE-

EN2

MSZ-SF42VE-

E1

     

MSZ-SF42VE-

E2

 MSZ-SF42VE-

EN1

     

MSZ-SF42VE-

EN2

MSZ-SF50VE-

E1

     

MSZ-SF50VE-

E2

 MSZ-SF50VE-

EN1

     

MSZ-SF50VE-

EN2

 1. Indoor electronic control P.C. board has been changed.

E2

 and 

EN2

 models are compatible with the outdoor units with low standby power control.

Connecting these models to the MUZ-SF·VE(H)-series outdoor units enables the low standby power control. Refer to the tech-
nical guide (OBT17) about the low standby power control.

These models may be connected to the MUZ-SF·VE(H) series after once connected to the MXZ series and operated, for 
example because of relocation. In that case, the MUZ-SF·VE(H) series outdoor units will not operate without taking a step. 
Follow the procedure "Deleting the memorized abnormal condition" described in 10-2.1. 

MSZ-SF25VE-

ER2

MSZ-SF35VE-

ER2

MSZ-SF42VE-

ER2

MSZ-SF50VE-

ER2

 1. New model

MSZ-SF25VE2-

E1

MSZ-SF35VE2-

E1

MSZ-SF42VE2-

E1

MSZ-SF50VE2-

E1

 1. New model

MSZ-SF25VE2-

EN1

MSZ-SF35VE2-

EN1

MSZ-SF42VE2-

EN1

MSZ-SF50VE2-

EN1

 1. New model

MSZ-SF25VE2-

ER1

MSZ-SF35VE2-

ER1

MSZ-SF42VE2-

ER1

MSZ-SF50VE2-

ER1

 1. New model

OBH600E

Содержание MSZ-SF25VE

Страница 1: ...F25 35 42 50VE3 E1 EN1 ER1 have been added Please void OBH600 REVISED EDITION D Revision E MSZ SF25 35 42 50VE3 E1 EN1 ER1 have been added Please void OBH600 REVISED EDITION D No OBH600 REVISED EDITION E CONTENTS 1 TECHNICAL CHANGES 3 2 PART NAMES AND FUNCTIONS 5 3 SPECIFICATION 7 4 NOISE CRITERIA CURVES 10 5 OUTLINES AND DIMENSIONS 11 6 WIRING DIAGRAM 12 7 REFRIGERANT SYSTEM DIAGRAM 16 8 SERVICE ...

Страница 2: ...ch the live parts Use the specified refrigerant only Never use any refrigerant other than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accid...

Страница 3: ...Z SF VE H series outdoor units enables the low standby power control Refer to the tech nical guide OBT17 about the low standby power control These models may be connected to the MUZ SF VE H series after once connected to the MXZ series and operated for example because of relocation In that case the MUZ SF VE H series outdoor units will not operate without taking a step Follow the procedure Deletin...

Страница 4: ... MSZ SF35VE3 E1 MSZ SF42VE3 E1 MSZ SF50VE3 E1 1 New model MSZ SF25VE3 EN1 MSZ SF35VE3 EN1 MSZ SF42VE3 EN1 MSZ SF50VE3 EN1 1 New model MSZ SF25VE3 ER1 MSZ SF35VE3 ER1 MSZ SF42VE3 ER1 MSZ SF50VE3 ER1 1 New model OBH600E ...

Страница 5: ...n plate fixing screw 4 25 mm 5 Remote controller holder 1 Fixing screw for 3 5 16 mm Black 2 Battery AAA for remote controller 2 Wireless remote controller 1 Felt tape For left or left rear piping 1 Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal vane Air inlet Air lter Nano platinum lter Air cleaning lter Electrostatic anti allergy enzyme lter optio...

Страница 6: ...ng screw for 3 5 16 mm Black 2 Battery AAA for remote controller 2 Wireless remote controller 1 Felt tape For left or left rear piping 1 Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal vane Air inlet Air lter Air purifying lter Air cleaning lter Silver ionized air puri er lter option Front panel Air outlet Heat exchanger Spec name plate Remote contro...

Страница 7: ...eating Super High dB A 45 46 47 49 High 39 40 42 43 Med 34 36 38 Low 24 31 33 Silent 21 28 30 Fan speed Cooling Super High rpm 1 200 1 280 High 1 000 1 070 1 100 Med 820 940 970 Low 660 850 880 Silent 590 760 820 Heating Super High rpm 1 330 1 400 1 500 High 1 100 1 120 1 200 1 270 Med 940 1 000 1 080 Low 660 850 910 Silent 590 760 820 Fan speed regulator 5 Remote controller model SG11D NOTE Test ...

Страница 8: ... 480 Low 246 348 384 Silent 180 210 2 282 300 2 306 336 2 Sound level Cooling Super High dB A 42 45 High 36 38 40 Med 30 34 36 Low 24 31 33 Silent 19 21 2 26 28 2 28 30 2 Heating Super High dB A 45 46 47 49 High 39 40 42 43 Med 34 36 38 Low 24 31 33 Silent 19 21 2 26 28 2 28 30 2 Fan speed Cooling Super High rpm 1 200 1 280 High 1 000 1 070 1 100 Med 820 940 970 Low 660 850 880 Silent 550 590 2 72...

Страница 9: ... 480 Low 246 348 384 Silent 180 210 2 282 300 2 306 336 2 Sound level Cooling Super High dB A 42 45 High 36 38 40 Med 30 34 36 Low 24 31 33 Silent 19 21 2 26 28 2 28 30 2 Heating Super High dB A 45 46 47 49 High 39 40 42 43 Med 34 36 38 Low 24 31 33 Silent 19 21 2 26 28 2 28 30 2 Fan speed Cooling Super High rpm 1 200 1 280 High 1 000 1 070 1 100 Med 820 940 970 Low 660 850 880 Silent 550 590 2 72...

Страница 10: ...G 42 45 NC 10 NOISE CRITERIA CURVES 4 Test conditions Cooling Dry bulb temperature 27 C Wet bulb temperature 19 C Heating Dry bulb temperature 20 C Wet bulb temperature 15 C INDOOR UNIT WALL MICROPHONE 0 8m 1m MSZ SF42VE MSZ SF42VE2 MSZ SF42VE3 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR C...

Страница 11: ...SZ SF25 35 42VE 2 3 Ø12 7 MSZ SF50VE 2 3 Drain hose Insulation Ø28 Connected part Ø16 O D Piping Insulation Ø37 O D Liquid line Ø6 35 0 5m Flared connection Ø6 35 Gas line Ø9 52 0 43m Flared connection Ø9 52 MSZ SF25 35 42VE 2 3 Ø12 7 MSZ SF50VE 2 3 Drain hose Insulation Ø28 Connected part Ø16 O D MSZ SF25 35 42 50VE E1 E2 ER2 MSZ SF25 35 42 50VE EN1 EN2 11 26 Oblong hole 11 20 Oblong hole Install...

Страница 12: ...12 MSZ SF25VE E1 E2 EN1 EN2 MSZ SF42VE E1 E2 EN1 EN2 WIRING DIAGRAM 6 MSZ SF25VE ER2 MSZ SF42VE ER2 OBH600E ...

Страница 13: ...13 MSZ SF35VE E1 E2 EN1 EN2 MSZ SF50VE E1 E2 EN1 EN2 MSZ SF35VE ER2 MSZ SF50VE ER2 OBH600E ...

Страница 14: ...14 MSZ SF25VE2 E1 EN1 ER1 MSZ SF42VE2 E1 EN1 ER1 MSZ SF35VE2 E1 EN1 ER1 MSZ SF50VE2 E1 EN1 ER1 OBH600E ...

Страница 15: ...15 MSZ SF25VE3 E1 EN1 ER1 MSZ SF42VE3 E1 EN1 ER1 MSZ SF35VE3 E1 EN1 ER1 MSZ SF50VE3 E1 EN1 ER1 OBH600E ...

Страница 16: ...Z SF50VE2 MSZ SF50VE3 with heat insulator Refrigerant pipe ø6 35 with heat insulator Indoor coil thermistor RT12 main Indoor coil thermistor RT13 sub Refrigerant flow in cooling Refrigerant flow in heating Unit mm REFRIGERANT SYSTEM DIAGRAM 7 MSZ SF25VE MSZ SF35VE MSZ SF42VE MSZ SF50VE MSZ SF25VE2 MSZ SF35VE2 MSZ SF42VE2 MSZ SF50VE2 MSZ SF25VE3 MSZ SF35VE3 MSZ SF42VE3 MSZ SF50VE3 OBH600E ...

Страница 17: ...ation put back the batteries then press the RESET button SERVICE FUNCTIONS 8 MSZ SF25VE MSZ SF35VE MSZ SF42VE MSZ SF50VE MSZ SF25VE2 MSZ SF35VE2 MSZ SF42VE2 MSZ SF50VE2 MSZ SF25VE3 MSZ SF35VE3 MSZ SF42VE3 MSZ SF50VE3 The P C board has the print J1 and J2 Solder J1 and J2 according to the number of indoor unit as shown in Table 1 After modification press the RESET button J1 J2 Table 1 1 unit operat...

Страница 18: ...onditioners are connected to the same supply system if they are operated before power failure the starting current of all the compressors may flow simultaneously at restart Therefore the special counter measures are required to prevent the main voltage drop or the rush of the starting current by adding to the system that allows the units to start one by one JR77 IC171 CN104 CN112 BZ Indoor electro...

Страница 19: ... model is on back FAN SPEED CONTROL button OPERATION SELECT button ECONO COOL button CLOCK SET button WEEKLY TIMER set button TIME TIMER set buttons FORWARD button BACKWARD button RESET button i save button VANE CONTROL button Signal transmitting section Operation display section TEMPERATURE buttons OPERATE STOP ON OFF button Indication of remote controller model is on back FAN SPEED CONTROL butto...

Страница 20: ...sting When the temperature of indoor heat exchanger becomes too low the coil frost prevention mode works The indoor fan operates at the set speed and the compressor stops This mode continues until the temperature of indoor heat exchanger rises 2 Low outside temperature operation When the outside temperature is lower low outside temperature operation starts and the outdoor fan slows or stops 3 Indo...

Страница 21: ...e compressor operational frequency is controlled by the temperature of the indoor heat exchanger to prevent the con densing pressure from increasing excessively When the temperature of indoor heat exchanger becomes too high the high pressure protection works The indoor fan operates following the cold air prevention control This mode continues until the temperature of indoor heat exchanger falls 3 ...

Страница 22: ...s until it touches the vane stopper Then the vane is set to the selected angle Confirming of standard position is performed in the following cases a When the operation starts or finishes including timer operation b When the test run starts c When standby mode only during multi system operation starts or finishes 4 VANE AUTO mode In VANE AUTO mode the microprocessor automatically determines the van...

Страница 23: ...h CLOCK SET button How to set the current time a Press the CLOCK set button b Press the TIME SET buttons and to set the current time Each time FORWARD button is pressed the set time increases by 1 minute and each time BACKWARD button is pressed the set time decreases by 1 minute Pressing those buttons longer the set time increases decreases by 10 minutes c Press the CLOCK set button 2 Press OPERAT...

Страница 24: ... conditioner starts operating with timer cancelled when power is restored 9 8 WEEKLY TIMER OPERATION A maximum of 4 ON or OFF timers can be set for individual days of the week A maximum of 28 ON or OFF timers can be set for a week Make sure that the current time and day are set correctly 1 Press button to enter the weekly timer setting mode 2 Press and buttons to select setting day and number blin...

Страница 25: ... have to be pressed per each setting Press button once after all the settings are complete All the weekly timer settings will be saved Press button to enter the weekly timer setting mode and press and hold button for 5 seconds to erase all weekly timer settings Point the remote controller toward the indoor unit which was blink ing goes out and the current time will be displayed 5 Press button to t...

Страница 26: ...tch during normal operation Operation mode COOL HEAT Set temperature 24 C Fan speed Med Horizontal vane Auto The operation mode is indicated by the Operation Indicator lamp as following Operation Indicator lamp EMERGENCY COOL EMERGENCY HEAT STOP Lighted Not lighted 9 9 i save OPERATION 1 How to set i save operation 1 Press OPERATE STOP ON OFF MSZ SF VE MSZ SF VE2 STOP OPERATE OFF ON MSZ SF VE3 but...

Страница 27: ...he connector and terminal are connected properly 3 When the P C board seems to be defective check the copper foil pattern for disconnection and the components for bursting and discoloration 4 When troubleshooting refer to 10 2 10 3 and 10 4 4 How to replace batteries Weak batteries may cause the remote controller malfunction In this case replace the batteries to operate the remote controller norma...

Страница 28: ...with the remote controller headed towards the indoor unit Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted 4 Release the failure mode recall function according to Releasing the failure mode recall function mentioned above Yes Blinks No OFF NOTE 1 Make sure to release the failure mode recall function after it is set up otherwise the unit cannot operate properly 2...

Страница 29: ...f the main indoor coil ther mistor the sub indoor coil thermistor 10 7 3 time flash 2 5 second OFF Serial signal The serial signal from outdoor unit is not re ceived for a maximum of 6 minutes Refer to 10 6 How to check miswiring and serial signal error 11 time flash 2 5 second OFF Indoor fan motor The rotational frequency feedback signal is not emitted for 12 seconds after the indoor fan motor is...

Страница 30: ... Run operation means the operation within 30 minutes af ter EMERGENCY OPERATION switch is pressed Refer to outdoor unit service manual Left lamp Flash on and off at 0 5 sec ond intervals Cause Indoor Outdoor unit Miswiring or trouble of serial signal Left lamp 2 time flash Cause Indoor unit Trouble of room temperature indoor coil thermistor Left lamp 3 time flash Cause Indoor unit Trouble of indoo...

Страница 31: ...vercurrent protection or start up failure protection within 1 minute after start up Refer to How to check of in verter compressor Refer to outdoor unit service manual Check the stop valve 6 Outdoor thermistors Left lamp flashes 6 time flash 2 5 second OFF The outdoor thermistors short or open circuit during the compressor operation Refer to Check of outdoor thermistor Refer to outdoor unit service...

Страница 32: ...rvice manual 10 5 TROUBLE CRITERION OF MAIN PARTS MSZ SF25VE MSZ SF35VE MSZ SF42VE MSZ SF50VE MSZ SF25VE2 MSZ SF35VE2 MSZ SF42VE2 MSZ SF50VE2 MSZ SF25VE3 MSZ SF35VE3 MSZ SF42VE3 MSZ SF50VE3 Part name Check method and criterion Figure Room temperature thermistor RT11 Indoor coil thermistor RT12 RT13 Measure the resistance with a tester Refer to 10 7 Test point diagram and voltage Indoor electronic ...

Страница 33: ...pressed the voltage measured at 2 above goes 0 VDC although the indoor P C board is normal Does the voltage between CN211 and on the power P C board rise to the range of 3 to 6 VDC within 12 seconds after EMERGENCY OPERATION switch is pressed Replace the indoor fan motor Yes No The indoor fan motor error has occurred and the indoor fan repeats 12 second ON and 30 second OFF 3 times and then stops ...

Страница 34: ...ts of inverter or rapid start type within the range of 1 m 2 Yes No Reinstall the unit away from lights Attach a filter on receiving part Replace the indoor electronic control P C board Including the receiver 1 Look at the image of the signal transmitting section of the remote controller through the monitor of a digital camera or a camera phone It is normal if the LED of the signal transmitting se...

Страница 35: ...esistor R111 MSZ SF35 50VE on the indoor power P C board No No Replace the indoor power P C board and the indoor fan motor Replace the indoor electronic control P C board Measure the resistance of the vane motor coil Refer to 10 5 Short circuit Replace the vane motor and the indoor electronic control P C board 1 The fan motor connector s lead wire is red whereas is black 2 Connect of the tester to...

Страница 36: ...ic control P C board No Does the indoor OPERATION INDICATOR lamp left blink continuously 6 minutes after the emergency operation starts No Does the outdoor LED light up Replace the indoor electronic control P C board Replace the indoor power P C board Yes Yes Does the outdoor LED blink 6 times Yes Confirm that the thermostat is OFF and wiring is not loose No Does DC 6V or more occur between indoor...

Страница 37: ...ick blinking 3 Yes No Lighted or not lighted Replace the inverter P C board or the outdoor electronic control P C board 2 2 Be careful of the residual voltage of smoothing capacitor Is there amplitude of 10 to 20 VDC between indoor terminal block S2 and S3 Confirmation of serial signal Yes Check the wiring If there are any error of the indoor outdoor connecting wire such as the damage of the wire ...

Страница 38: ...ditions such as antennas or wiring Check the following before asking for service 1 Devices affected by the electromagnetic noise TV sets radios FM AM broadcast shortwave 2 Channel frequency broadcast station affected by the electromagnetic noise 3 Channel frequency broadcast station unaffected by the electromagnetic noise 4 Layout of indoor outdoor unit of the air conditioner indoor outdoor wiring...

Страница 39: ...C GND Timer short mode point JPG JPS Refer to 8 1 To disable Auto restart function cut the Jumper wire to JR77 Refer to 8 4 Emergency operation switch E O SW SW1 Connector to indoor electronic control P C board CN102 Room temperature ther mistor RT11 CN111 Indoor coil thermistor RT12 RT13 CN112 Vane motor CN151 Indoor power P C board Indoor electronic control P C board Receiver board Display board...

Страница 40: ...connector has the locking mechanism Slide the sleeve Pull the terminal while pushing the locking lever Hold the sleeve and pull out the terminal slowly Connector Sleeve Locking lever Terminal with locking mechanism Detaching points The terminal which has the locking mechanism can be detached as shown below There are 2 types Refer to 1 and 2 of the terminal with locking mechanism The terminal witho...

Страница 41: ...electronic control P C board 1 Remove the panel Refer to 1 and the corner box right 2 Remove the screw of the V A clamp Remove the V A clamp and the indoor outdoor connecting wire 3 Remove the indoor electrical box Refer to 2 4 Remove the earth wire connected to the electrical box from the indoor power P C board 5 Disconnect the following connectors Indoor electronic power P C board CN201 Terminal...

Страница 42: ...y P C board holder 6 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 7 Remove the vane motors Refer to 5 Photo 4 5 Removing the horizontal vane motor 1 Remove the nozzle assembly Refer to 4 2 Remove the screws of the vane motor unit cover and pull out the vane motor unit 3 Remove the screws of the vane motor unit 4 Disconnect the connector from the vane motor 5 Remo...

Страница 43: ...indoor fan motor 8 Remove the indoor coil thermistor from the heat exchanger Install the indoor coil thermistor in its former position when assembling it Photo 5 9 Remove the screws fixing the left side and the upper right side of the heat exchanger Photo 7 Photo 5 10 Lift the heat exchanger and pull out the line flow fan to the lower left When attaching the line flow fan screw the line flow fan s...

Страница 44: ... of the clip shape part 2 Check the marked mounting position 3 Mount the clip shape part Position and procedure for mounting the clip shape part About the same length HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2011 MITSUBISHI ELECTRIC CORPORATION Distributed in Jan 2016 No OBH600 REVISED EDITION E Distributed in Nov 2014 No OBH600 REVISED EDITION D Distribute...

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