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Содержание MSZ-EF22VEB

Страница 1: ...iant products have G mark on the spec name plate Models MSZ EF22VEW E1 MSZ EF22VEB E1 MSZ EF22VES E1 MSZ EF25VEW E1 MSZ EF25VEB E1 MSZ EF25VES E1 MSZ EF35VEW E1 MSZ EF35VEB E1 MSZ EF35VES E1 MSZ EF42VEW E1 MSZ EF42VEB E1 MSZ EF42VES E1 MSZ EF50VEW E1 MSZ EF50VEB E1 MSZ EF50VES E1 Models MSZ EF22VEW E1 MSZ EF25VEW E1 MSZ EF35VEW E1 MSZ EF42VEW E1 MSZ EF50VEW E1 MSZ EF22VEB E1 MSZ EF25VEB E1 MSZ EF3...

Страница 2: ...e the capacitor before the work involving the electric parts Precautions during the repair service Do not perform the work involving the electric parts with wet hands Do not pour water into the electric parts Do not touch the refrigerant Do not touch the hot or cold areas in the refrigeration cycle When the repair or the inspection of the circuit needs to be done without turning off the power exer...

Страница 3: ... low standby power control Connecting these models to the MUZ EF 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 EF VE H series after once connected to the MXZ VA series and operated for example because of relocation In that case the MUZ EF VE H series outdoor units will...

Страница 4: ...VES MSZ EF35VES MSZ EF42VES MSZ EF50VES Installation plate 1 Installation 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 Soft dry cloth VEB type only 1 Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal va...

Страница 5: ...igh 534 594 666 Med 372 468 540 Low 276 378 438 Silent 240 330 384 Sound level Cooling Super High dB A 42 43 High 36 39 40 Med 29 35 36 Low 23 24 31 33 Silent 21 28 30 Heating Super High dB A 45 46 48 49 High 37 38 41 43 Med 29 30 35 37 Low 24 30 33 Silent 21 28 30 Fan speed Cooling Super High rpm 1 200 1 180 1 240 High 990 1 050 1 080 Med 800 930 950 Low 630 830 850 Silent 570 750 Heating Super H...

Страница 6: ...ED HEATING 42 46 NC 10 MSZ EF35VEW MSZ EF35VEB MSZ EF35VES 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 BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 42 45 NC 10 NOISE CRITERIA CURVES 4 Specifications and rating conditions of main electric parts Fuse...

Страница 7: ...0 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 43 49 NC 10 MSZ EF50VEW MSZ EF50VEB MSZ EF50VES 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 BAND CENTER FREQUENCIES Hz COOLING ...

Страница 8: ...B MSZ EF42VEB MSZ EF50VEB MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES Piping Insulation ø37 O D Liquid line ø6 35 0 5 m Flared connection ø6 35 Gas line ø9 52 0 43 m Flared connection ø9 52 22 25 35 42 ø12 7 50 Drain hose Insulation ø28 O D Connected part ø16 O D OUTLINES AND DIMENSIONS 5 ...

Страница 9: ...Flared connection Refrigerant pipe ø9 52 MSZ EF22 25 35 42 ø12 7 MSZ EF50 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 EF22VEW MSZ EF25VEW MSZ EF35VEW MSZ EF42VEW MSZ EF50VEW MSZ EF22VEB MSZ EF25VEB MSZ EF35VEB MSZ EF42V...

Страница 10: ...on take out the batteries and press the OPERATE STOP ON OFF button twice or 3 times at first After modification put back the batteries then press the RESET button Table 1 1 unit operation 2 units operation 3 units operation 4 units operation No 1 unit No modification Same as at left Same as at left Same as at left No 2 unit Solder J1 Same as at left Same as at left No 3 unit Solder J2 Same as at l...

Страница 11: ...ized when 10 seconds have passed after the indoor unit was operated with the remote controller If main power is turned OFF or a power failure occurs while AUTO START STOP timer is active the timer setting is can celled If the unit has been off with the remote controller before power failure the auto restart function does not work as the power button of the remote controller is OFF To prevent break...

Страница 12: ...ure The room temperature is approaching the set tem perature About 1 to 2 C from set temperature Standby mode Only during multi system operation INDOOR UNIT DISPLAY SECTION Lighted Blinking Not lighted 9 1 COOL OPERATION 1 Press OPERATE STOP ON OFF button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select COOL mode with OPERATION SELECT button 3 Press TEMPERATURE button...

Страница 13: ...e 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 Defrosting Defrosting starts when the temperature of outdoor heat exchang...

Страница 14: ... 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 vane angle to make the optimum room tem perature distribution Horizontal position 5 In COOL and DRY operation Vane angle is fixed to Horizontal position In HEAT operation Vane angle is fixed to Angle 5 AUTO 1 2 3 4 5 SWING...

Страница 15: ...imer setting a Press OFF TIMER button during operation b Set the time of the timer using TIME SET buttons and Each time FORWARD button is pressed the set time increases by 10 minutes each time BACKWARD but ton is pressed the set time decreases by 10 minutes 2 To release the timer To release ON timer press ON TIMER button To release OFF timer press OFF TIMER button TIMER is cancelled and the displa...

Страница 16: ...lable while the weekly timer is on In this case the ON OFF timer has priority over the weekly timer the weekly timer operation will start again after the simple ON OFF timer is complete 1 How to set the weekly timer Press and buttons to continue setting the timer for other days and or numbers 4 Press button to complete and transmit the weekly timer setting which was blink ing goes out and the curr...

Страница 17: ...evention works even in the test run or the emergency operation In the test run or emergency operation the horizontal vane operates in VANE AUTO mode Emergency operation continues until EMERGENCY OPERATION switch is pressed once or twice or the unit receives any signal from the remote controller In case of latter normal operation will start NOTE Do not press EMERGENCY OPERATION switch during nor ma...

Страница 18: ...d terminal are connected properly 3 When the electronic control 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 n...

Страница 19: ...ote controller the set temperature is displayed 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 once it is set ...

Страница 20: ...stics of 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 during the 12 seconds the indoor fan ...

Страница 21: ...ft 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 indoor fan motor Left lamp 4 time flash Cause Indoor unit Trouble of indoor unit control system Left lamp 5 time flash Cause Outdoor unit Outd...

Страница 22: ...ory of the indoor electronic control P C board Replace the indoor electronic control P C board 5 Outdoor power sys tem Left lamp flashes 5 time flash 2 5 second OFF It consecutively occurs 3 times that the com pressor stops for overcurrent 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 Chec...

Страница 23: ...OUBLE CRITERION OF MAIN PARTS MSZ EF22VEW MSZ EF25VEW MSZ EF35VEW MSZ EF42VEW MSZ EF50VEW MSZ EF22VEB MSZ EF25VEB MSZ EF35VEB MSZ EF42VEB MSZ EF50VEB MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES 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 voltag...

Страница 24: ... is 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 st...

Страница 25: ...troller visible Remove the batteries then set them back and press RESET button Refer to 10 1 4 Check if the unit operates with the remote controller Yes No Turn ON a radio to AM and press OP ERATE STOP ON OFF button on the remote controller Is noise heard from radio Yes No Replace the remote controller Are there any fluorescent lights of inverter or rapid start type within the range of 1 m Yes No ...

Страница 26: ...he fuse F11 3 Measure the resistance of reactor L111 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 ...

Страница 27: ... minutes after the main power sup ply is turned ON Touch CN202 and JPG with tester probes and start the emergency operation During the emergency operation does DC 2V or more occur for 2 seconds between CN202 and JPG on the indoor electronic 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 li...

Страница 28: ...quick 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 wir...

Страница 29: ...or the installation condition combination of specific conditions 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 ...

Страница 30: ...ort mode point JPG JPS Refer to 8 1 Release of Auto restart function Solder the Jumper wire to JR07 Refer to 8 3 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 CN152 Indoor power P C board Indoor electronic control P C board Receiver board Display board Swit...

Страница 31: ...ightly toward you and then remove the panel by pushing it upward Photo 1 1 Slide the sleeve and check if there is a locking lever or not 2 The terminal with this 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 te...

Страница 32: ...he 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 block CN202 To the indoor electronic control P C board 6 Remove the indoor power P C board 7 Disconnect the following connectors Indoor electroni...

Страница 33: ... display 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...

Страница 34: ...r and the motor band 7 Release the hooks of the motor band and remove the motor band Pull out the 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 8 10 Lift the heat exchanger and pull ...

Страница 35: ...35 ...

Страница 36: ...G 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2010 MITSUBISHI ELECTRIC CO LTD Distributed in Nov 2010 No OBH589 Made in Japan New publication effective Nov 2010 Specifications subject to change without notice ...

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