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Mitsubishi Electric MSZ-GA22VA, Руководство по обслуживанию, Страница: 4 / 32

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4

ACCESSORIES

1
2
3
4
5
6
7

Installation plate

Installation plate fixing screw 4 

o

 25 mm

Remote controller holder

Fixing screw for 

3

 3.5 

o

 1.6 mm (Black)

Battery (AAA) for remote controller

Wireless remote controller

Felt tape (Used for left or left-rear piping)

MSZ-GA22VA -

E1

MSZ-GA25VA -

E1

1

5

1

2

2

1

1

MSZ-GA35VA -

E1

INDOOR UNIT

ON-TIMER button

CLOCK SET button

TIME SET buttons
FORWARD button
BACKWARD button

OFF-TIMER button

 

(This diagram shows an overall view.)

Open the front lid.

RESET button

VANE CONTROL button

Signal transmitting section

Operation display section

Temperature buttons

OPERATE/STOP
 (ON/OFF) button

FAN SPEED CONTROL button

OPERATION SELECT button

ECONO COOL button

Indication of 
remote controller
model is on back

MSZ-GA22VA -
MSZ-GA25VA -
MSZ-GA35VA -

E1

E1

E1

OB378_--1qxp  05.1.17 12:55  Page 4

Содержание MSZ-GA22VA

Страница 1: ...7 12 OPTIONAL PARTS 30 Wireless type Models MSZ GA22VA WH MSZ GA25VA WH MSZ GA35VA WH E1 E1 E1 No OB378 SPLIT TYPE HEAT PUMP AIR CONDITIONERS Indication of model name MSZ GA22VA MSZ GA25VA MSZ GA35VA E1 E1 E1 NOTE This service manual describes technical data of the indoor units As for outdoor units MUZ GA25VA MUZ GA35VA MUZ GA25VAH and MUZ GA35VAH refer to service manual OB379 As for outdoor units...

Страница 2: ...ed 7 Indoor fan motor has been changed AC DC 8 Indoor heat exchanger has been changed 9 The horizontal vane motor unit has been changed An external gear is added to the generalized stepping motor The unit is structured so that the driving torque and stopping torque would increase NOTE Do not remove the vane motor from the motor unit Do not disassemble the horizontal vane motor unit Generalized ste...

Страница 3: ...let Display section Front panel Panel Heat exchanger Horizontal vane Operation section When the front panel is opened Remote controller Remote control receiving section Catechin air filter Air cleaning filter Optional parts Anti Allergy Enzyme Filter Blue bellows type Emergency operation switch Fan guard Operation Indicator lamp ...

Страница 4: ...1 1 5 1 2 2 1 1 MSZ GA35VA E1 INDOOR UNIT ON TIMER button CLOCK SET button TIME SET buttons FORWARD button BACKWARD button OFF TIMER button This diagram shows an overall view Open the front lid RESET button VANE CONTROL button Signal transmitting section Operation display section Temperature buttons OPERATE STOP ON OFF button FAN SPEED CONTROL button OPERATION SELECT button ECONO COOL button Indic...

Страница 5: ...otor current 1 Model Dimensions WOHOD Weight Air direction Sound level Super High Sound level HighW Med W LowW Fan speed Super High Fan speed HighW Med W LowW Fan speed regulator Thermistor RT11 at25 Thermistor RT12 at25 Thermistor RT13 at25 Remote controller model K h K h A A W A kW A mm kg dB A dB A rpm rpm k k k Electrical data Fan motor Special remarks Capacity MSZ GA25VA E1 MSZ GA22VA E1 MSZ ...

Страница 6: ...h FAN SPEED HEATING Heating Dry bulb temperature 20 Wet bulb temperature 15 MSZ GA22VA MSZ GA25VA E1 E1 INDOORUNIT WALL MICROPHONE 0 8m 1m 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 Test conditions Cooling Dry bulb temperature 27 Wet bulb temperature 19 APPROXIM...

Страница 7: ...r in Air out Wall hole 65 Indoor unit Installation plate Installation plate 11X20 Oblong hole 11X26 Oblong hole 10 or more 75 or more 66 or more W 75 or more W In case of left left back or left under piping using spacer 115 or more Insulation 28 Drain hose 16 Connected part O D Liquid line 6 35 0 5m Gas line 9 52 0 43m Insulation 35 O D 19 I D Required space Indoor unit MSZ GA35VA E1 MSZ GA22VA E1...

Страница 8: ...R FAN MOTOR VANE MOTOR HORIZONTAL VARISTOR NAME ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR MAIN INDOOR COIL THERMISTOR SUB TRANSFORMER TERMINAL BLOCK NOTE 1 About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector MSZ GA22VA MSZ GA25VA MSZ GA35VA E1 ...

Страница 9: ...ame as at left Solder both J1 and J2 Table 1 How to set the remote controller exclusively for particular indoor unit After you turn the breaker ON the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit The indoor unit will only accept the signal from the remote controller that has been assigned to the indoor unit once they...

Страница 10: ...ontroller before power failure the auto restart function does not work as the power button of the remote controller is off To prevent breaker off due to the rush of starting current systematize other home appliance not to turn on at the same time When some air conditioners are connected to the same supply system if they are operated before power failure the starting current of all the compressors ...

Страница 11: ...ch the front lid If horizontal vane is not installed correctly all of the operation indicator lamps will blink In this case install the horizontal vane correctly by following the procedures 1 to 2 NOTE Before installation of the horizontal vane turn OFF the power supply 5 How to install the horizontal vane In procedure 2 2 lock the stoppers until they click into place INFORMATION FOR MULTI SYSTEM ...

Страница 12: ...e abnormal point 9 2 2 Make sure to check at least two consecutive blinking cycles W2 Turn ON the power supply 1 While pressing both OPERATION SELECT button and TOO COOL button on the remote controller at the same time press RESET button 2 First release RESET button And release the other two buttons since all LCD in operation display section of the remote controller is displayed after 3 seconds De...

Страница 13: ... to the characteristic of the main indoor coil thermistor the sub indoor coil thermistor 9 7 Indoor coil thermistor When the indoor coil thermistor short or open circuit is detected every 8 seconds during operation 3 time flash 2 5 second OFF Refer to 9 6 D How to check miswiring and serial signal error Serial signal error When the serial signal from the outdoor unit is not received for a maximum ...

Страница 14: ...mality Left lamp 6 time flash Cause Outdoor unit Trouble of thermistor in outdoor unit Left lamp 7 time flash Cause Outdoor unit Trouble of outdoor control system Refer to 9 6 D How to check of mis wiring and serial signal error when outdoor unit doesn t work All lamps Flash on and off at 0 5 second intervals Cause Indoor unit The horizontal vane is not installed correctly Refer to 9 6 E Check of ...

Страница 15: ...indoor coil thermistor and the room temperature thermistor Left lamp flashes 3 time flash 2 5 second OFF When the rotational frequency feedback signal is not emitted during the indoor fan operation Refer to 9 6 A Check of indoor fan motor Indoor unit and outdoor unit do not operate Indoor unit and outdoor unit do not operate Left lamp flashes 5 time flash 2 5 second OFF Left lamp flashes 6 time fl...

Страница 16: ... each indoor unit is differently set to COOL includes DRY and HEAT at the same time the operation mode of the indoor unit that has operated at first has the priority Unify the operation mode Refer to service manual OB377 2 5 second OFF Right lamp flash Flashing of OPERATION INDICATOR lamp all lamps indicates abnormality Flashing of OPERATION INDICATOR lamp right hand side lamp indicates abnormalit...

Страница 17: ...RATION switch Measure the supply voltage as follows within 12 seconds after EMERGENCY OPERATION switch is pressed If more than 12 seconds passes by turn OFF the power supply and turn ON it again then measure the voltage 1 Measure the voltage between CN211 1 and 3 2 Measure the voltage between CN211 5 and 3 Is there 311V DC between CN211 1 and 3 and does the voltage between CN211 5 and 3 rise to th...

Страница 18: ...eard from radio Are there any fluorescent lights of inverter or rapid start type within the range of 1m Replace the indoor electronic control P C board Replace the remote controller Reinstall the unit away from lights Attach a filter on receiving part Switch on the remote controller Is LCD display on the the remote controller visible Remove the batteries then set them back and press RESET button R...

Страница 19: ...Measure the resistance between CN211 3 and 4 of the indoor fan motor connector Normal value is approx 30k to 50k Short circuit Replace the indoor fan motor Short circuit Replace the horizontal vane motor and the indoor electronic control P C board Turn OFF the power supply Check both parts side and pattern side of the indoor electronic control P C board visually Replace the varistor NR11 and fuse ...

Страница 20: ...ERATION INDICATOR lamp light up Confirmation of the power to the indoor unit Press EMERGENCY OPERATION switch Check the power supply Is the self check of the indoor unit displayed 6 minutes after The left lamp of OPERATION INDICATOR lamp blinks quickly A Turn OFF the power supply Check once more if the indoor outdoor connecting wire is not mis wiring Short circuit outdoor terminal block S2 and S3 ...

Страница 21: ...0 Relock the stopper of the horizontal vane to the indoor unit Refer to 9 1 5 Yes Are all lamp flashing Yes No No OK Turn ON the power supply To check the continuity of the interlock switch Fan measure the resistance of connector 1 2 connected to CN1R1 on the indoor electronic control P C board Turn OFF the power supply Turn OFF the power supply When All lamps flash ON and OFF every 0 5 second Ind...

Страница 22: ... 4 Layout of indoor outdoor unit of the air conditioner indoor outdoor wiring grounding wire antennas wiring from antennas receiver 5 Electric field intensity of the broadcast station affected by the electromagnetic noise 6 Presence or absence of amplifier such as booster 7 Operation condition of air conditioner when the electromagnetic noise enters in 1 Turn OFF the power supply once and then tur...

Страница 23: ...1 Indoor coil thermistor RT12 MAIN 12 RT13 SUB 34 CN112 Horizontal vane motor CN151 9 7 Test point diagram and voltage SW P C board Power monitor receiver P C board 12V DC 5V DC Interlock switch Fan CN1R1 Power supply input Indoor fan motor CN211 Varistor NR11 Room temperature thermistor RT11 Timer short mode point JPG JPS Refer to 8 1 5 3 6V DC 415V DC 3 Fiducial terminal of cathode side on measu...

Страница 24: ...minal with locking mechanism The terminal without locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching Terminal with locking mechanism Detaching points Connector Sleeve Locking lever MSZ GA22VA MSZ GA25VA MSZ GA35VA INDOOR UNIT E1 E1 E1 OPERATING PROCEDURE PHOTOS Photo 1 1 Removing the panel 1 Remove the horizontal vane 2 Remove the screw caps of the...

Страница 25: ...nected to the heat exchanger from the electrical box See Photo 4 12 Unhook the catches of the electrical box and pull out the electrical box 13 Remove the screws of the terminal block cover and then the terminal block cover and the terminal block holder See Photo 2 14 Remove the terminal block by sliding it OPERATING PROCEDURE PHOTOS Screw of the electrical cover Switch holder Photo 3 3 Removing t...

Страница 26: ...orner box 2 Remove the switch holder and the electrical box Refer to 3 3 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 4 Remove the screws fixing the motor bed See Photo 6 5 Loosen the screw fixing the line flow fan See Photo 7 6 Remove the motor bed together with fan motor and motor band 7 Release the hooks of the motor band and remove the motor band then pull ou...

Страница 27: ...NT PANEL WH CATECHIN AIR FILTER LEFT CATECHIN AIR FILTER RIGHT AIR CLEANING FILTER CORNER BOX RIGHT INSTALLATION PLATE Including No 3 4 2PCS SET MAC 415FT E WH WH 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 E02 897 234 E02 915 000 E02 913 067 E02 915 010 E02 915 100 E02 916 100 E02 913 975 E02 913 970 1 1 E02 915 426 E02 527 083 1 1 2 1 1 1 1 1 1 1 1 1 1 MSZ GA25VA E1 WH 11 1 INDOOR UNIT STRUCTURAL PARTS ...

Страница 28: ...MSZ GA22VA WH MSZ GA25VA WH MSZ GA35VA WH E1 E1 E1 4 2 5 3 9 ROOM TEMPERATURE THERMISTOR VARISTOR 1 6 22 11 4 INDOOR UNIT HEAT EXCHANGER 10 8 7 12 13 14 POWER MONITOR RECEIVER P C BOARD FUSE 15 16 SW P C BOARD 21 INTERLOCK SWITCH FAN 24 23 11 15 15 19 17 18 20 ...

Страница 29: ... 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 INDOOR HEAT EXCHANGER UNION GAS UNION LIQUID 9 52 6 35 E02 751 509 E02 001 504 E02 897 702 E02 915 235 E02 897 303 E02 897 316 E02 913 040 E02 127 382 E02 661 385 E02 915 095 E02 897 784 E02 897 780 E02 897 779 E02 913 375 E02 915 452 E02 916 452 E02 917 452 E02 897 308 E02 913 307 E02 915 782 E02 915 300 E02 897 333 E02 897 302 1 1 1...

Страница 30: ...filter AIR CLEANING FILTER ANTI ALLERGY ENZYME 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 1 year If AIR CLEANING FILTER is to be washed soak AIR CLEANING FILTER in water when showing dirt in lukewarm water and rinse it delicately without removing the filter from the frame about once every 3 months Clogge...

Страница 31: ...31 ...

Страница 32: ... 2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Jan 2005 No OB378 6 Made in Japan New publication effective Jan 2005 Specifications subject to change without notice ...

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