Mitsubishi Electric MSZ-EF18VE2B-E1 Service Manual Download Page 18 | Manualshive

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background image

18

Indoor

heat

exchanger

Flared connection

Room temperature
thermistor
RT11

Flared connection

Refrigerant pipe ø9.52 (

MSZ-EF18/22/25/35/42

)

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-EF18VEW MSZ-EF22VEW MSZ-EF25VEW MSZ-EF35VEW MSZ-EF42VEW MSZ-EF50VEW
MSZ-EF18VEB MSZ-EF22VEB MSZ-EF25VEB MSZ-EF35VEB MSZ-EF42VEB MSZ-EF50VEB
MSZ-EF18VES MSZ-EF22VES MSZ-EF25VES MSZ-EF35VES MSZ-EF42VES MSZ-EF50VES
MSZ-EF18VE2W MSZ-EF22VE2W MSZ-EF25VE2W MSZ-EF35VE2W MSZ-EF42VE2W MSZ-EF50VE2W
MSZ-EF18VE2B MSZ-EF22VE2B MSZ-EF25VE2B MSZ-EF35VE2B MSZ-EF42VE2B MSZ-EF50VE2B
MSZ-EF18VE2S MSZ-EF22VE2S MSZ-EF25VE2S MSZ-EF35VE2S MSZ-EF42VE2S MSZ-EF50VE2S

MSZ-EF18VE3W MSZ-EF22VE3W MSZ-EF25VE3W MSZ-EF35VE3W MSZ-EF42VE3W MSZ-EF50VE3W
MSZ-EF18VE3B MSZ-EF22VE3B MSZ-EF25VE3B MSZ-EF35VE3B MSZ-EF42VE3B MSZ-EF50VE3B
MSZ-EF18VE3S MSZ-EF22VE3S MSZ-EF25VE3S MSZ-EF35VE3S MSZ-EF42VE3S MSZ-EF50VE3S

OBH589G

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Summary of Contents for MSZ-EF18VE2B-E1

Page 1: ... EF42VE3W B S E1 E2 MSZ EF50VE3W B S E1 E2 MSZ EF22VE3W B S ER1 ER2 MSZ EF25VE3W B S ER1 ER2 MSZ EF35VE3W B S ER1 ER2 MSZ EF42VE3W B S ER1 ER2 MSZ EF50VE3W B S ER1 ER2 MSZ EF VEW MSZ EF VEB MSZ EF VES PARTS CATALOG OBB589 CONTENTS 1 TECHNICAL CHANGES 3 2 PART NAMES AND FUNCTIONS 6 3 SPECIFICATION 9 4 NOISE CRITERIA CURVES 11 5 OUTLINES AND DIMENSIONS 13 6 WIRING DIAGRAM 16 7 REFRIGERANT SYSTEM DIA...

Page 2: ...will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions Revision A Airflow in the Silent mode in the cooling operation has been changed TROUBLESHOOTING has been corrected 10 2 10 4 Revision B MSZ EF18VEW E1 MSZ EF18VEB E1 and MSZ EF18VES E1 have been added Revision C MSZ EF18 22 25 35 42 50VE2W E1 ER1 MSZ EF18 ...

Page 3: ...F42VES E1 MSZ EF42VE2S E1 MSZ EF50VES E1 MSZ EF50VE2S E1 1 Front panel has been changed 2 Panel assembly has been changed 3 Remote controller has been changed MSZ EF18VE2W ER1 MSZ EF22VE2W ER1 MSZ EF25VE2W ER1 MSZ EF35VE2W ER1 MSZ EF42VE2W ER1 MSZ EF50VE2W ER1 MSZ EF18VE2B ER1 MSZ EF22VE2B ER1 MSZ EF25VE2B ER1 MSZ EF35VE2B ER1 MSZ EF42VE2B ER1 MSZ EF50VE2B ER1 MSZ EF18VE2S ER1 MSZ EF22VE2S ER1 MSZ...

Page 4: ...EF50VE2S E1 MSZ EF50VE3S E1 1 Air filter has been changed 2 Air cleaning filter has been changed MSZ EF22VE2W ER1 MSZ EF22VE3W ER1 MSZ EF25VE2W ER1 MSZ EF25VE3W ER1 MSZ EF35VE2W ER1 MSZ EF35VE3W ER1 MSZ EF42VE2W ER1 MSZ EF42VE3W ER1 MSZ EF50VE2W ER1 MSZ EF50VE3W ER1 MSZ EF18VE2B ER1 MSZ EF18VE3B ER1 MSZ EF22VE2B ER1 MSZ EF22VE3B ER1 MSZ EF25VE2B ER1 MSZ EF25VE3B ER1 MSZ EF35VE2B ER1 MSZ EF35VE3B E...

Page 5: ...5VE3S E1 MSZ EF35VE3S E2 MSZ EF42VE3S E1 MSZ EF42VE3S E2 MSZ EF50VE3S E1 MSZ EF50VE3S E2 MSZ EF22VE3W ER1 MSZ EF22VE3W ER2 MSZ EF25VE3W ER1 MSZ EF25VE3W ER2 MSZ EF35VE3W ER1 MSZ EF35VE3W ER2 MSZ EF42VE3W ER1 MSZ EF42VE3W ER2 MSZ EF50VE3W ER1 MSZ EF50VE3W ER2 MSZ EF22VE3B ER1 MSZ EF22VE3B ER2 MSZ EF25VE3B ER1 MSZ EF25VE3B ER2 MSZ EF35VE3B ER1 MSZ EF35VE3B ER2 MSZ EF42VE3B ER1 MSZ EF42VE3B ER2 MSZ E...

Page 6: ...ote 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 vane Air inlet Air filter Nano platinum filter Air cleaning filter Electrostatic anti allergy enzyme filter option Heat exchanger Front panel Air outlet Remote controller MSZ EF18VEW MSZ...

Page 7: ...less remote controller 1 Felt tape For left or left rear piping 1 Soft dry cloth VEB type only 1 Air cleaning filter 2 Remote controller MSZ EF18VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF35VE2W MSZ EF42VE2W MSZ EF50VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S Operation indicator lamp Remo...

Page 8: ... Wireless remote controller 1 Felt tape For left or left rear piping 1 Soft dry cloth VEB type only 1 Air cleaning filter 2 Remote controller MSZ EF18VE3W MSZ EF22VE3W MSZ EF25VE3W MSZ EF35VE3W MSZ EF42VE3W MSZ EF50VE3W MSZ EF18VE3B MSZ EF22VE3B MSZ EF25VE3B MSZ EF35VE3B MSZ EF42VE3B MSZ EF50VE3B MSZ EF18VE3S MSZ EF22VE3S MSZ EF25VE3S MSZ EF35VE3S MSZ EF42VE3S MSZ EF50VE3S Operation indicator lamp...

Page 9: ... S 885 299 195 EF VE2W B S EF VE3W B S Weight kg 11 5 Special remarks Air direction 5 Airfl ow Cooling Super High m3 h 630 High 498 Med 378 Low 276 Silent 240 Heating Super High m3 h 714 762 High 534 Med 372 Low 276 Silent 240 Sound level Cooling Super High dB A 42 High 36 Med 29 Low 23 24 Silent 21 Heating Super High dB A 45 46 High 37 38 Med 29 30 Low 24 Silent 21 Fan speed Cooling Super High rp...

Page 10: ...s Air direction 5 Airfl ow Cooling Super High m3 h 618 660 High 534 558 Med 462 474 Low 396 408 Silent 348 Heating Super High m3 h 762 792 High 594 666 Med 468 540 Low 378 438 Silent 330 384 Sound level Cooling Super High dB A 42 43 High 39 40 Med 35 36 Low 31 33 Silent 28 30 Heating Super High dB A 48 49 High 41 43 Med 35 37 Low 30 33 Silent 28 30 Fan speed Cooling Super High rpm 1 180 1 240 High...

Page 11: ...ES 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 MSZ EF18VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ...

Page 12: ...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 FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 42 48 NC 10 MSZ EF42VE2W MSZ ...

Page 13: ...52 18 22 25 35 42 ø12 7 50 Drain hose Insulation ø28 O D Connected part ø16 O D OUTLINES AND DIMENSIONS 5 MSZ EF18VEW MSZ EF22VEW MSZ EF25VEW MSZ EF35VEW MSZ EF42VEW MSZ EF50VEW MSZ EF18VEB MSZ EF22VEB MSZ EF25VEB MSZ EF35VEB MSZ EF42VEB MSZ EF50VEB MSZ EF18VES MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES OBH589G ...

Page 14: ...EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S Unit mm 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 18 22 25 35 42 ø12 7 50 Drain hose Insulation ø28 O D Connected part ø16 O D OBH589G ...

Page 15: ...EF35VE3B MSZ EF42VE3B MSZ EF50VE3B MSZ EF18VE3S MSZ EF22VE3S MSZ EF25VE3S MSZ EF35VE3S MSZ EF42VE3S MSZ EF50VE3S Unit mm 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 18 22 25 35 42 ø12 7 50 Drain hose Insulation ø28 O D Connected part ø16 O D OBH589G ...

Page 16: ...B MSZ EF42VEB MSZ EF50VEB MSZ EF18VES MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES MSZ EF18VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF35VE2W MSZ EF42VE2W MSZ EF50VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S OBH589G ...

Page 17: ...SZ EF22VE3S E2 ER2 MSZ EF25VE3S E2 ER2 MSZ EF35VE3S E2 ER2 MSZ EF42VE3S E2 ER2 MSZ EF50VE3S E2 ER2 MSZ EF18VE3W E1 MSZ EF22VE3W E1 ER1 MSZ EF25VE3W E1 ER1 MSZ EF35VE3W E1 ER1 MSZ EF42VE3W E1 ER1 MSZ EF50VE3W E1 ER1 MSZ EF18VE3B E1 MSZ EF22VE3B E1 ER1 MSZ EF25VE3B E1 ER1 MSZ EF35VE3B E1 ER1 MSZ EF42VE3B E1 ER1 MSZ EF50VE3B E1 ER1 MSZ EF18VE3S E1 MSZ EF22VE3S E1 ER1 MSZ EF25VE3S E1 ER1 MSZ EF35VE3S ...

Page 18: ...W MSZ EF50VEW MSZ EF18VEB MSZ EF22VEB MSZ EF25VEB MSZ EF35VEB MSZ EF42VEB MSZ EF50VEB MSZ EF18VES MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES MSZ EF18VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF35VE2W MSZ EF42VE2W MSZ EF50VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S MSZ EF18...

Page 19: ...ion 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 left No 4 unit Solder both J1 and J2 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 ...

Page 20: ...conditioners 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 JR07 IC171 CN104 CN112 BZ Indoor electr...

Page 21: ...0VEW MSZ EF18VEB MSZ EF22VEB MSZ EF25VEB MSZ EF35VEB MSZ EF42VEB MSZ EF50VEB MSZ EF18VES MSZ EF22VES MSZ EF25VES MSZ EF35VES MSZ EF42VES MSZ EF50VES MSZ EF18VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF35VE2W MSZ EF42VE2W MSZ EF50VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S MSZ EF18VEW MSZ E...

Page 22: ...RATE STOP ON OFF button Indication of remote controller 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 STOP OPERATE OFF ON button Indication of rem...

Page 23: ...Z EF VE VE2 STOP OPERATE OFF ON MSZ EF VE3 button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select HEAT mode with OPERATION SELECT button 3 Press TEMPERATURE buttons TEMP or button to select the desired temperature The setting range is 16 31 C 1 Cold air prevention control When the compressor is not operating or is starting and the temperature of indoor heat exchanger...

Page 24: ...e moves 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 t...

Page 25: ...ss ON TIMER button To release OFF timer press OFF TIMER button TIMER is cancelled and the display of set time disappears Example 1 The current time is 8 00 PM The unit turns off at 11 00 PM and on at 6 00 AM OFF timer and ON timer can be used in combination The set time that is reached first will operate first and display shows the order of OFF timer and ON timer operation PROGRAM TIMER Example 2 ...

Page 26: ...ll days can be selected NOTE The simple ON OFF timer setting is available 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 When the weekly timer is set temperature cannot be set to 10 C The weekly timer operation and i save operation cannot be used together 1 How to se...

Page 27: ... or buttons to view the setting of the particular day or number 3 Press button to exit the weekly timer setting NOTE When all days of the week are selected to view the settings and a different setting is included among them will be displayed 4 Press button to complete and transmit the weekly timer setting which was blink ing goes out and the current time will be displayed 9 9 i save OPERATION 1 Ho...

Page 28: ...The coil frost prevention 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 the latter case normal operation will start NOTE Do not press EMERGENCY OPERATION sw...

Page 29: ...tteries Weak batteries may cause the remote controller malfunction In this case replace the batteries to operate the remote controller normally Lead wiring Connector housing Incorrect Correct TROUBLESHOOTING 10 NOTE 1 If RESET button is not pressed the remote controller may not operate correctly 2 This remote controller has a circuit to automatically reset the microcomputer when batteries are repl...

Page 30: ...splayed 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 men tioned 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 p...

Page 31: ...e main indoor coil ther mistor the sub indoor coil thermistor 10 7 3 time blink 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 blink 2 5 second OFF Indoor fan motor The rotational frequency feedback signal is not emitted for the 12 seconds after the indoor fan motor is...

Page 32: ...Run operation means the operation within 30 minutes af ter EMERGENCY OPERATION switch is pressed Refer to outdoor unit service manual Left lamp Blink on and off at 0 5 sec ond intervals Cause Indoor Outdoor unit Miswiring or trouble of serial signal Left lamp 2 time blink Cause Indoor unit Trouble of room temperature indoor coil thermistor Left lamp 3 time blink Cause Indoor unit Trouble of indoor...

Page 33: ...rent 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 blinks 6 time blink 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 manual...

Page 34: ...8VE2W MSZ EF22VE2W MSZ EF25VE2W MSZ EF35VE2W MSZ EF42VE2W MSZ EF50VE2W MSZ EF18VE2B MSZ EF22VE2B MSZ EF25VE2B MSZ EF35VE2B MSZ EF42VE2B MSZ EF50VE2B MSZ EF18VE2S MSZ EF22VE2S MSZ EF25VE2S MSZ EF35VE2S MSZ EF42VE2S MSZ EF50VE2S MSZ EF18VE3W MSZ EF22VE3W MSZ EF25VE3W MSZ EF35VE3W MSZ EF42VE3W MSZ EF50VE3W MSZ EF18VE3B MSZ EF22VE3B MSZ EF25VE3B MSZ EF35VE3B MSZ EF42VE3B MSZ EF50VE3B MSZ EF18VE3S MSZ ...

Page 35: ...ssed the voltage measured at 2 above goes 0 V DC 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 V DC 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 M...

Page 36: ...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 secti...

Page 37: ...1 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 2 Connect ...

Page 38: ...or 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 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 bet...

Page 39: ...k 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 V DC 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 i...

Page 40: ...fic 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 outdoor unit of the air conditioner indoor outdoor...

Page 41: ...esistance kΩ Indoor electronic control P C board Indoor power P C board Fuse F11 Varistor NR11 Indoor fan motor CN211 325 V DC GND high voltage DC 15 V DC 3 6 V DC 0 or 15 V DC Connector to terminal block CN201 Connector to indoor electronic control P C board CN202 Receiver board Display board Switch board Reactor L111 5 V DC 12 V DC GND Timer short mode point JPG JPS Refer to 8 1 To disable Auto ...

Page 42: ...C Connector to terminal block CN201 Connector to indoor electronic control P C board CN202 Receiver board Display board Switch board Reactor L111 5 V DC 12 V DC 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 power P C board CN102 Room temperature ther mistor RT11 CN111 Vane...

Page 43: ...k the lower part of the panel 4 First hold the lower part of the right end of the panel and hold the lower part of the left end of the panel 5 Pull the panel slightly 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 shown below has the locking mechanism Slide the sleeve Pull the term...

Page 44: ...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...

Page 45: ... 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...

Page 46: ...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 out the line flow fan to the lower left When attaching the line flow fan screw the line flow fan s...

Page 47: ...ked position Do not pull the lead wire when removing the indoor coil thermistor Holder shape Clip shape 1 Set the indoor coil thermistor in the center 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 When fixing the indoor coil thermistor to the clip shape holder shape part the lead wire should point dow...

Page 48: ...REVISED EDITION E Issued Mar 2014 No OBH589 REVISED EDITION D Issued Jan 2014 No OBH589 REVISED EDITION C Issued Nov 2012 No OBH589 REVISED EDITION B Issued Mar 2011 No OBH589 REVISED EDITION A Published Nov 2010 No OBH589 Made in Japan Specifications are subject to change without notice HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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