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38

D How to check miswiring and serial signal error

Turn OFF the power supply.

Is there rated voltage in the power supply?

Is serial signal error indicated 6 minutes later?

Yes

No

No

Check for incorrect indoor-outdoor connecting wiring.

Check the power supply.

• Turn OFF inverter-controlled lighting equipment.
• Turn OFF the power supply and then turn ON again.
• Press EMERGENCY OPERATION switch.

Is there rated voltage between outdoor terminal block S1 and S2?

No

Yes

Yes

Check for miswiring, broken wires, and loose wire
connection between the power supply and outdoor
terminal block S1 and between the power supply and
outdoor terminal block S2.

• Reinstall either the unit or the light away from each other.
•

Attach a filter on remote control receiving section of the

indoor unit.

Wait for 2 or more minutes after the power supply is turned on.
Touch S2 and S3 with tester probes and start the emergency operation.

When the emergency operation starts, does the rated voltage occur for 2
seconds between indoor terminal block S2 and S3?

Turn the power supply OFF.

Turn the power supply ON.

Wait for 2 or more minutes after the
power supply is turned ON. Touch
CN202 and GND with tester probes
and start the emergency operation.

During the emergency opera-
tion, does DC (2V or less) occur
for 2 seconds between CN202

and GND on the indoor power

P.C. board?

No

Does the indoor POWER lamp
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

Yes

Does the outdoor LED blink 6
times?

Yes

Confirm that the thermostat is OFF

and wiring is not loose.

No

Does DC (6 V or more) occur
between indoor terminal block S2
and S3?

Yes

Replace the outdoor inverter P.C. board.

*1

No

Turn the power supply OFF.
Replace the indoor power P.C.
board.

Start the emergency operation.

No

Yes

Repair completed.

Does DC (20 V or more) occur
between indoor terminal block S2
and S3?

No

Yes

Replace the outdoor inverter P.C. board.*1

Replace the indoor electronic
control P.C. board.

*1

Electric charge may remain immediately

after the power supply is turned OFF.

Perform the procedure after 3 minutes.

Replace the outdoor inverter P.C. board.

*1

Turn the power supply ON.

Turn the power supply ON.

Does the indoor POWER lamp
blink continuously 6 minutes after
the emergency operation starts?

Yes

No

No

No

Was the indoor unit ever connected to
the Multi (MXZ) series and operated
(turned on)?

The connection information to the Multi series is stored
in the indoor unit. Refer to “Deleting the memorized
abnormal condition” described in 10-2.1 to clear the error
history. When the error history is being cleared, the con-
nection information also will be initialized. The indoor unit
will be compatible with a low-standby-power model after
initialization.

OK

Yes

MUZ Type

OBH766C

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Содержание MSZ-LN18VG2B

Страница 1: ...nd MSZ LN60VG2W V B R E1 ET1 have been added Models MSZ LN18VGW E1 MSZ LN50VGW E1 ER1 MSZ LN18VGV E1 MSZ LN50VGV E1 ER1 MSZ LN18VGB E1 MSZ LN50VGB E1 ER1 MSZ LN18VGR E1 MSZ LN50VGR E1 ER1 MSZ LN18VG2W E1 EN1 ET1 MSZ LN50VG2W E1 EN1 ET1 MSZ LN18VG2V E1 EN1 ET1 MSZ LN50VG2V E1 EN1 ET1 MSZ LN18VG2B E1 EN1 ET1 MSZ LN50VG2B E1 EN1 ET1 MSZ LN18VG2R E1 EN1 ET1 MSZ LN50VG2R E1 EN1 ET1 MSZ LN25VGW E1 ER1 M...

Страница 2: ... LN50VG2W E1 MSZ LN50VGV E1 MSZ LN50VG2V E1 MSZ LN50VGB E1 MSZ LN50VG2B E1 MSZ LN50VGR E1 MSZ LN50VG2R E1 MSZ LN60VGW E1 MSZ LN60VG2W E1 MSZ LN60VGV E1 MSZ LN60VG2V E1 MSZ LN60VGB E1 MSZ LN60VG2B E1 MSZ LN60VGR E1 MSZ LN60VG2R E1 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 service...

Страница 3: ... 1 Felt tape For left or left rear piping 1 Corner box R 4 Corner box L 4 Battery AAA for remote controller 2 Air cleaning filter Deodorizing filter black 1 Air purifying device 1 MSZ LN18VGW MSZ LN25VGW MSZ LN35VGW MSZ LN50VGW MSZ LN60VGW MSZ LN18VGV MSZ LN25VGV MSZ LN35VGV MSZ LN50VGV MSZ LN60VGV MSZ LN18VGB MSZ LN25VGB MSZ LN35VGB MSZ LN50VGB MSZ LN60VGB MSZ LN18VGR MSZ LN25VGR MSZ LN35VGR MSZ ...

Страница 4: ... Cooling Super High dB A 42 43 46 49 High 36 39 45 Med 29 35 41 Low 23 24 31 37 Silent 19 27 29 Heating Super High dB A 45 47 49 High 36 39 45 Med 29 34 41 Low 24 29 37 Silent 19 25 29 Fan speed Cooling Super High rpm 1 030 1 090 1 160 1 280 High 820 940 1 080 Med 700 820 940 Low 610 730 820 Silent 500 600 700 Heating Super High rpm 1 190 1 150 1 280 1 280 High 800 950 1 140 Med 700 800 1 000 Low ...

Страница 5: ...vel Cooling Super High dB A 42 43 46 49 High 36 39 45 Med 29 35 41 Low 23 24 31 37 Silent 19 27 29 Heating Super High dB A 45 47 49 High 38 39 45 Med 29 34 41 Low 24 29 37 Silent 19 25 29 Fan speed Cooling Super High rpm 1 040 1 080 1 160 1 280 High 820 940 1 080 Med 670 820 940 Low 580 730 820 Silent 500 600 700 Heating Super High rpm 1 140 1 280 1 280 High 940 950 1 140 Med 700 800 1 000 Low 630...

Страница 6: ...ION SPL dB A LINE Super High FAN SPEED HEATING 42 45 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 NC 10 COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 42 45 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...

Страница 7: ...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 NC 10 COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 43 45 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 NC 10 MSZ LN35VGW MSZ LN35VG...

Страница 8: ... NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz NC 10 MSZ LN60VGW MSZ LN60VGB MSZ LN60VGV MSZ LN60VGR Test conditions Cooling Dry bulb temperature 27 C Wet bulb temperature 19 C Heating Dry bulb temperature 20 C INDOOR UNIT WALL MICROPHONE 0 8m 1m MSZ LN60VG2W MSZ LN60VG2B MSZ LN60VG2V MSZ LN60VG2R OBH766C ...

Страница 9: ...N60VG2W MSZ LN18VG2V MSZ LN25VG2V MSZ LN35VG2V MSZ LN50VG2V MSZ LN60VG2V MSZ LN18VG2B MSZ LN25VG2B MSZ LN35VG2B MSZ LN50VG2B MSZ LN60VG2B MSZ LN18VG2R MSZ LN25VG2R MSZ LN35VG2R MSZ LN50VG2R MSZ LN60VG2R MSZ LN18 25 35VGW VGV VGB VGR MSZ LN60VGW VGV VGB VGR PIPING INSULATION ø35 O D LIQUID LINE ø6 35 0 5m FLARED CONNECTION ø6 35 GAS LINE ø9 52 0 45m FLARED CONNECTION ø9 52 DRAIN HOSE INSULATION ø28...

Страница 10: ...GB MSZ LN18VGR MSZ LN25VGR MSZ LN35VGR MSZ LN60VGR MSZ LN18VG2W E1 EN1 MSZ LN25VG2W E1 EN1 MSZ LN35VG2W E1 EN1 MSZ LN60VG2W E1 MSZ LN18VG2V E1 EN1 MSZ LN25VG2V E1 EN1 MSZ LN35VG2V E1 EN1 MSZ LN60VG2V E1 MSZ LN18VG2B E1 EN1 MSZ LN25VG2B E1 EN1 MSZ LN35VG2B E1 EN1 MSZ LN60VG2B E1 MSZ LN18VG2R E1 EN1 MSZ LN25VG2R E1 EN1 MSZ LN35VG2R E1 EN1 MSZ LN60VG2R E1 OBH766C ...

Страница 11: ...I RÖLE DIŞ ÜNİTEYE Wİ Fİ ARAYÜZÜ EKRAN KAYDEDİCİ DEVRE KARTI NOTLAR 1 Dış ünite elektronik kablolaması için dış ünite elektronik kablo devre şemasını referans alınız 2 Sadece bakır besleme kablosu kullanın 3 Sembolleri gösterir KANAT MOTORU YATAY MSZ LN18VG2W ET1 MSZ LN25VG2W ET1 MSZ LN35VG2W ET1 MSZ LN60VG2W ET1 MSZ LN18VG2V ET1 MSZ LN25VG2V ET1 MSZ LN35VG2V ET1 MSZ LN60VG2V ET1 MSZ LN18VG2B ET1 ...

Страница 12: ...SİGORTA T3 15AL250V FAN MOTORU VARİSTÖR ODA SICAKLIK TERMİSTÖRÜ BORU SICAKLIK TERMİSTÖRÜ ANA BORU SICAKLIK TERMİSTÖRÜ YARDIMCI TERMİNAL BLOĞU İÇ ÜNİTE GÜÇ KARTI İÇ ÜNİTE ELEKTRONİK KONTROL KARTI KİLİTLEME ANAHTARI HAVA TEMİZLEME CİHAZI RÖLE DIŞ ÜNİTEYE Wİ Fİ ARAYÜZÜ EKRAN KAYDEDİCİ DEVRE KARTI NOTLAR 1 Dış ünite elektronik kablolaması için dış ünite elektronik kablo devre şemasını referans alınız ...

Страница 13: ...nsulator 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 MSZ LN18VGW MSZ LN25VGW MSZ LN35VGW MSZ LN18VGV MSZ LN25VGV MSZ LN35VGV MSZ LN18VGB MSZ LN25VGB MSZ LN35VGB MSZ LN18VGR MSZ LN25VGR MSZ LN35VGR MSZ LN18VG2W MSZ LN25VG2W MSZ LN35VG2W MSZ LN18VG2V MSZ LN25VG2V MSZ LN35VG2V MSZ L...

Страница 14: ...re set the indoor unit will only receive the signal from the assigned remote controller afterwards SERVICE FUNCTIONS 8 8 3 SETTING THE INSTALLATION POSITION Be sure to set the remote controller according to the installed position of the indoor unit Installation position Left Distance to objects wall cabinet etc is less than 50 cm to the left Center Distance to objects wall cabinet etc is more than...

Страница 15: ...f any operational data from the system until the End user registers and accepts the terms and con ditions of the Wi Fi service This Wi Fi interface should not be installed and connected to any Mitsubishi Electric system which is to provide application critical cooling or heating At the time of relocation or disposal reset the Wi Fi interface to the factory default This Wi Fi interface communicates...

Страница 16: ...he indication Indication Operation state Room temperature Standby mode Only during multi system operation Lit Blinking Not lit MSZ LN18VGW MSZ LN25VGW MSZ LN35VGW MSZ LN50VGW MSZ LN60VGW MSZ LN18VGV MSZ LN25VGV MSZ LN35VGV MSZ LN50VGV MSZ LN60VGV MSZ LN18VGB MSZ LN25VGB MSZ LN35VGB MSZ LN50VGB MSZ LN60VGB MSZ LN18VGR MSZ LN25VGR MSZ LN35VGR MSZ LN50VGR MSZ LN60VGR MSZ LN18VG2W E1 ET1 MSZ LN25VG2W ...

Страница 17: ... further to get to the weekly timer buttons WEEKLY TIMER set buttons TIME TIMER set buttons FORWARD button BACKWARD button RESET button i save button NIGHT MODE button SENSOR i see button VANE CONTROL button WIDE VANE button INDOOR UNIT DISPLAY SECTION Operation Indicator lamp The operation indicator at the right side of the indoor unit indicates the operation state The following indication applie...

Страница 18: ...outdoor heat exchanger becomes too low The compressor stops once the indoor outdoor fans stop the 4 way valve reverses and the compressor re starts This mode continues until the temperature of outdoor heat exchanger rises or the fixed time passes 9 5 AUTO CHANGE OVER AUTO MODE OPERATION Once desired temperature is set unit operation is switched automatically between COOL and HEAT operation Mode se...

Страница 19: ...pping motors for the horizontal vanes The rotating direction speed and angle of the motor are controlled by pulse signals approximately 12 V transmitted from indoor microprocessor 2 The horizontal vane angle and mode change as follows by pressing VANE CONTROL button Horizontal position 4 In COOL and DRY operation Vane angle is fixed to Horizontal position In HEAT operation Vane angle is fixed to A...

Страница 20: ...he set temperature and operates the POWERFUL mode The POWERFUL mode is cancelled automatically 15 minutes after operation starts or when POWERFUL button is pressed once again within 15 minutes after operation starts The operation mode returns to the mode prior to POWERFUL operation To cancel this operation manually select a different mode or press one of the following but tons within 15 minutes af...

Страница 21: ...er 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 display ...

Страница 22: ...sing adjusts the tem perature Hold down the button to change the time quickly The temperature can be set between 16 C and 31 C at COOL operation The temperature can be set between 10 C and 31 C at HEAT operation blinks Pressing selects the day of the week to be set Pressing selects the setting number E g Mon Tue Sun and 1 are selected All days can be selected NOTE The simple ON OFF timer setting i...

Страница 23: ... starts to operate in summer When occupants are in blanket or wear heavily When there is an object whose temperature changes rapidly in a short time When windows and doors are small or they are far from the air conditioner When the sensor cannot detect the heat source such as of small kids or pets When using a floor heating or an electric carpet When occupants do not move after the air conditioner...

Страница 24: ...tion automatically changes the operation to No occupancy energy saving mode or No occupancy Auto OFF mode when nobody is in the room 9 10 AIRFLOW CONTROL MODE AIRFLOW CONTROL mode offers air conditioning according to a location of an occupant in a room detected by i see SENSOR 1 Press DIRECTION button during COOL DRY HEAT or AUTO mode to activate the AIRFLOW CONTROL mode This mode is only availabl...

Страница 25: ... HEAT mode i save operation is 10 31 C 2 groups of setting can be saved One for COOL ECONO COOL CIRCULATOR one for HEAT 2 How to cancel operation Press i save button again i save operation can also be cancelled by pressing POWERFUL button or OPERATION SELECT button to change the operation mode The same setting is select from the next time by simply pressing i save button 9 11 NIGHT MODE OPERATION ...

Страница 26: ...o circulate the indoor air The setting of fan speed and airflow direction can be changed The outdoor unit starts operation automatically when the indoor temperature drops below the setting temperature 1 Press CIRCULATOR button during HEAT mode to enable CIRCULATOR operation The unit performs FAN operation in case the indoor temperature reaches the setting temperature 2 Set the fan speed and airflo...

Страница 27: ...ing 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 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 remo...

Страница 28: ...s 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 properly 2 If the abnormal condition is not deleted from the memory the...

Страница 29: ...ote controller is set to the failure mode recall function The air purifying device or i see SENSOR might be abnormal Check if the air purifying device or i see SENSOR is abnormal according to the following procedures ON OFF Beeps Repeated cycle Repeated cycle 2 5 second OFF Blinking at 0 5 second interval Beeps Repeated cycle 2 5 second OFF Blinking at 0 5 second interval Beeps After repairing the...

Страница 30: ...etween CN1T1 and GND on the electronic P C board falls significantly 0 4V 0 5ms 3 time blink Refer to 10 6 Check of AIR PURIFYING power Abnormal electric discharge error 1 When the voltage between CN1T1 and GND on the electronic P C board falls by 1 2V below the normal voltage value 2 5V 2 time blink Electrode Spark discharge Electrode Electrode 1 time blink AIR PURIFYING power control When the vo...

Страница 31: ...ls Cause Indoor Outdoor unit Miswiring or trouble of se rial signal POWER lamp 2 time blink Cause Indoor unit Trouble of room temperature indoor coil thermistor POWER lamp 3 time blink Cause Indoor unit Trouble of indoor fan motor POWER lamp 4 time blink Cause Indoor unit Trouble of indoor unit control system POWER lamp 5 time blink Cause Outdoor unit Outdoor power sys tem abnor mality POWER lamp ...

Страница 32: ...nstruction manuals for the router and the device such as a smartphone and enable the Internet access There is a problem in communication between the air conditioner and the Wi Fi interface Check whether the air conditioner can be oper ated with a remote controller If the air conditioner does not operate Check indoor outdoor connect ing wire and the power supply Check the indoor power P C board and...

Страница 33: ...tup failure protection within 1 minute after startup Refer to How to check of in verter compressor Refer to outdoor unit service manual Check the stop valve 6 Outdoor thermistors POWER 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 7 Outdoor control sys t...

Страница 34: ...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 control P C board for the chart of thermistor Indoor fan motor MF Check 10 6 Check of indoor fan motor Vane motor MV1 HORIZONTAL Measure the resistance between the terminals with a tester Temperature 10 30 C Color of ...

Страница 35: ...ressed 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...

Страница 36: ... controller Refer to 8 2 Check if the unit operates with the remote controller Does the unit operate with the remote controller Yes No OK Measure the voltage between display and receiver P C board connector CN301 No 1 and No 2 when the remote controller button is pressed Is the voltage approximately 4 V DC 5 V DC No Yes Replace the indoor electronic control P C board 1 Look at the image of the sig...

Страница 37: ... 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 fan motor connector s lead wire and to lead wire otherwise the resistance cannot be measured properly 3 Please replace the fuse after removing the indoor power...

Страница 38: ...or power P C board No Does the indoor POWER lamp 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 Yes Does the outdoor LED blink 6 times Yes Confirm that the thermostat is OFF and wiring is not loose No Does DC 6 V or more occur between indoor terminal block ...

Страница 39: ...ter controlled lighting equipment Turn OFF the power supply and then turn ON again Press EMERGENCY OPERATION switch Turn OFF the power supply Check once more if the indoor outdoor connecting wire is not miswiring Remove the indoor outdoor connecting wire from outdoor terminal block S3 Short circuit outdoor terminal block S2 and S3 1 1 Miswiring may damage indoor electronic control P C board during...

Страница 40: ...1 on the indoor electronic control P C board High voltage approximately 5 8kV is generated during AIR PURIFYING power operation Pay careful attention and never touch the air purifying device and the high voltage lead part Yes No OFF Continuously blinking OFF Continuously blinking Does AIR PURIFYING lamp blink 2 time with unit stopping Turn ON the power supply Replace the indoor electronic control ...

Страница 41: ...e 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 outdo...

Страница 42: ...wer P C board Indoor electronic control P C board Display and receiver P C board Switch buzzer P C board 10 7 TEST POINT DIAGRAM AND VOLTAGE 5 V DC Interlock switch CN2T1 Air purifying device CN1T1 12 V DC 5 V DC Display and receiver P C board Room temperature thermistor RT11 Indoor coil thermistor RT12 RT13 Temperature C Resistance kΩ pin pin i see SENSOR motor MT pin i see SENSOR pin Vane motor ...

Страница 43: ... The terminal without locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching DISASSEMBLY INSTRUCTIONS 11 DISASSEMBLY INSTRUCTIONS Photo 1 Outer vane L horizontal Outer vane R horizontal Panel U Screw of the left side of the panel U Screw of the right side of the panel U Front panel Catch Enlarged view of the front panel stopper Photo 2 Insert a screwdr...

Страница 44: ...front panel and the outer vanes R L horizontal 2 Remove the panel U 3 Remove the 2 screws of the panel R and pull the top of the panel R toward you to remove How to install the panel R Photos 1 2 3 1 Install the panel R from the bottom to the top 2 Install the 2 screws in the panel R Removing the panel L Photos 1 2 3 1 Remove the front panel and the outer vanes R L horizontal 2 Remove the panel U ...

Страница 45: ...i Fi interface before installing the panel R 1 Install the panel F 2 Fasten the cable of Wi Fi interface to the part of the panel F with a cable tie 3 Stow the cable of Wi Fi interface in the area 4 Attach the Wi Fi interface so its cable side faces away from you 5 Fasten the cable of Wi Fi interface to the water cover 6 Connect the connector of Wi Fi interface CN110 to the indoor electronic contr...

Страница 46: ...electronic control P C board CN1J1 DISPLAY AND i see SENSOR ASSEMBLY CN2T1 Limit switch 9 Remove the DISPLAY AND i see SENSOR ASSEMBLY Photo 7 10 Disconnect the following connector Photo 8 Indoor electronic control P C board CN110 Wi Fi interface 11 Remove the Wi Fi interface refer to section 2 12 Remove the screw of the electrical box Photo 7 13 Disconnect the following connectors Photo 8 Indoor ...

Страница 47: ...sconnect the earth wire LD104 from the erth plate Removing the indoor electronic control P C board and the indoor power P C board Photo 8 2 Disconnect all the connectors on the indoor electronic control P C board and the indoor power P C board 3 Remove the indoor electronic control P C board and the indoor power P C board Removing the room temperature thermistor Photo 8 2 Disconnect the following ...

Страница 48: ...ard and the interlock switch from the hook Remove the switch buzzer P C board the dis play and receiver P C board and the interlock switch Photo 9 4 Photo 9 Details of the display DISPLAY AND i see SENSOR ASSEMBLY and board in the switch holder 48 Display cover Exploded view of display cover and DISPLAY AND i see SENSOR ASSEMBLY Switch buzzer P C board display and receiver P C board Right side vie...

Страница 49: ...lu minum tape on the front of the nozzle assembly Photo 11 Removing outer vane motor R horizontal Photo 12 7 Loosen the lead wires and disconnect the connector of the outer vane motor R horizontal 8 Remove the 2 screws of the outer vane motor R horizontal 9 Remove the outer vane motor R horizontal Removing outer vane motor L horizontal Photo 13 10 Loosen the lead wires and disconnect the connector...

Страница 50: ... screws of the vane motor horizontal from the backside of the vane motor unit R horizon tal and remove the vane motor horizontal Removing the vane motor unit R vertical Photo 15 10 Disengage the link of the vane motor unit R vertical 11 Remove the screw indicated in and remove the vane motor unit R vertical Removing the vane motor L horizontal Photo 16 12 Disengage the link of the vane motor unit ...

Страница 51: ...s of the fan motor assembly Pull the fan motor assembly slightly toward you and remove it by pulling to the right Photo 20 4 Remove the indoor coil thermistor from the heat exchanger 5 Remove the 2 screws of the hairpin holder on the left side of the heat exchanger Raise the left side of the heat exchanger and pull the line flow fan to the lower left to remove Photo 21 6 Disengage the 2 catches on...

Страница 52: ...rt 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 down About the same length HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2016 MITSUBISHI ELECTRIC CORPORATION Issued Dec 2019 No OBH76...

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