Mitsubishi Electric WSH-AP42WI Скачать руководство пользователя страница 1 | Manualshive

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SERVICE MANUAL

INDOOR UNIT

PARTS CATALOG (OBB788)

No. OBH788

REVISED EDITION-C

Outdoor unit service manual

MUZ-AP∙VG/VGH Series (OBH789)

MXZ-D∙VA/VAH Series (OBH626)

MXZ-E∙VA/VAH Series (OBH723)

MXZ-F∙VF/VFH Series (OBH790)

CONTENTS

1. TECHNICAL CHANGES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3
2. PART NAMES AND FUNCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4
3. SPECIFICATION ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6
4. NOISE CRITERIA CURVES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9
5. OUTLINES AND DIMENSIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙11
6. WIRING DIAGRAM ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 12
7. REFRIGERANT SYSTEM DIAGRAM ∙∙∙∙∙∙∙∙∙∙∙∙∙ 18
8. SERVICE FUNCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 19
9. MICROPROCESSOR CONTROL ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 21

10. TROUBLESHOOTING ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 29
11. DISASSEMBLY INSTRUCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 45

OBH788 REVISED EDITION-B is void.

MSZ-AP25VG

MSZ-AP35VG

MSZ-AP42VG

MSZ-AP50VG

MSZ-AP25VGK

MSZ-AP35VGK

MSZ-AP42VGK

MSZ-AP50VGK

Revision C:

• MSZ-AP25/35/42VG-

E2

,

EN2

,

ET2

,

MSZ-AP25/35/42VGK-

E2

,

EN2

,

ET2

,

MSZ-AP50VG-

ER1

,

E2

,

EN2

,

ET2

,

MSZ-AP50VGK-

ER1

,

E2

,

EN2

,

ET2

,

MSZ-AP60/71VG-

ER1

,

E2

,

ET2

,

MSZ-AP60/71VGK-

ER1

,

E2

,

ET2

,

have been added.

Models
MSZ-AP25VG

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP25VGK

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP35VG

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP35VGK

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP42VG

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP42VGK

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP50VG

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP50VGK

-

E1

,

EN1

,

ET1

,

ER1

,

E2

,

EN2

,

ET2

MSZ-AP60VG

-

E1

,

ET1

,

ER1

,

E2

,

ET2

MSZ-AP60VGK

-

E1

,

ET1

,

ER1

,

E2

,

ET2

MSZ-AP71VG

-

E1

,

ET1

,

ER1

,

E2

,

ET2

MSZ-AP71VGK

-

E1

,

ET1

,

ER1

,

E2

,

ET2

1
2
3
...
»

Содержание WSH-AP42WI

Страница 1: ...DITION B is void MSZ AP25VG MSZ AP35VG MSZ AP42VG MSZ AP50VG MSZ AP25VGK MSZ AP35VGK MSZ AP42VGK MSZ AP50VGK Revision C MSZ AP25 35 42VG E2 EN2 ET2 MSZ AP25 35 42VGK E2 EN2 ET2 MSZ AP50VG ER1 E2 EN2 ET2 MSZ AP50VGK ER1 E2 EN2 ET2 MSZ AP60 71VG ER1 E2 ET2 MSZ AP60 71VGK ER1 E2 ET2 have been added Models MSZ AP25VG E1 EN1 ET1 ER1 E2 EN2 ET2 MSZ AP25VGK E1 EN1 ET1 ER1 E2 EN2 ET2 MSZ AP35VG E1 EN1 ET1...

Страница 2: ...ution not to touch 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 br...

Страница 3: ...VGK E1 EN1 ET1 E2 EN2 ET2 MSZ AP50VGK E1 EN1 ET1 E2 EN2 ET2 MSZ AP60VG E1 ET1 E2 ET2 MSZ AP71VG E1 ET1 E2 ET2 MSZ AP60VGK E1 ET1 E2 ET2 MSZ AP71VGK E1 ET1 E2 ET2 1 Remote controller has been changed TECHNICAL CHANGES These models are compatible with the outdoor units with low standby power control Connecting these models to the MUZ AP VG VGH series outdoor units enables the low standby power contr...

Страница 4: ...e fixing screw 4 25 mm 5 Wireless remote controller 1 Felt tape For left or left rear piping 1 Battery AAA for remote controller 2 Operation indicator lamp Remote control receiving section Heat exchanger Air inlet Front panel Air outlet Spec name plate Air ﬁlter Air cleaning ﬁlter Silver ionized air puriﬁer ﬁlter option Horizontal vane Emergency operation switch Wi Fi interface MSZ AP VGK Remote c...

Страница 5: ...4 25 mm 7 Wireless remote controller 1 Felt tape For left or left rear piping 1 Battery AAA for remote controller 2 Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal vane Air inlet Front panel Air outlet Wi Fi interface MSZ AP VGK Heat exchanger Air cleaning ﬁlter Silver ionized air puriﬁer ﬁlter option Spec name plate Air ﬁlter OBH788C ...

Страница 6: ...Super High m3 h 774 840 High 534 564 600 Med 438 462 492 Low 354 366 390 Silent 294 318 336 Sound level Cooling Super High dB A 42 44 High 36 38 40 Med 30 34 36 Low 24 29 33 Silent 19 21 28 Heating Super High dB A 45 48 High 39 38 40 43 Med 34 31 35 38 Low 24 29 33 Silent 19 21 28 Fan speed Cooling Super High rpm 970 1 050 High 790 830 880 Med 670 720 770 Low 580 630 680 Silent 500 540 590 Heating...

Страница 7: ... 924 792 Low 804 690 Quiet 648 612 Sound level Cooling Super High dB A 48 49 High 45 Med 41 Low 37 Quiet 29 30 Heating Super High dB A 48 51 High 45 Med 41 Low 37 Quiet 30 Fan speed Cooling Super High rpm 1 100 1 140 High 960 970 Med 820 860 Low 710 770 Quiet 630 670 Heating Super High rpm 1 170 High 1 030 970 Med 930 860 Low 830 770 Quiet 700 Fan speed regulator 5 Remote controller model SG18D NO...

Страница 8: ...8 Specifications and rated conditions of main electric parts Fuse F11 T3 15AL250V Horizontal vane motor MV1 12 VDC Vertical vane motor MV2 12 VDC Varistor NR11 470 V Terminal block TB 3P OBH788C ...

Страница 9: ... 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 INDOOR UNIT WALL MICROPHONE 0 8m 1m MSZ AP42VG MSZ AP42VGK 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 FUNCT...

Страница 10: ...SPEED HEATING 49 51 NC 10 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR 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 BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 48 48 NC 10 MSZ AP60VG MSZ AP60VGK Test conditions Cooling Dry bulb temperature 27 C Wet bulb temperature 19 C Heating Dry bulb tempe...

Страница 11: ...AP25 35 42 50VG EN1 EN2 MSZ AP25 35 42 50VGK PIPING INSULATION LIQUID LINE GAS LINE DRAIN HOSE PIPING INSULATION LIQUID LINE GAS LINE DRAIN HOSE Ø37 O D Ø6 35 0 39m FLARED CONNECTION Ø6 35 Ø9 52 0 34m FLARED CONNECTION Ø9 52 INSULATION Ø29 CONNECTED PART Ø16 O D Ø37 O D Ø6 35 0 5m FLARED CONNECTION Ø6 35 Ø9 52 0 45m FLARED CONNECTION Ø9 52 INSULATION Ø29 CONNECTED PART Ø16 O D MSZ AP25 35 42 50VGK...

Страница 12: ...12 MSZ AP25VG E1 EN1 ER1 E2 EN2 MSZ AP35VG E1 EN1 ER1 E2 EN2 MSZ AP42VG E1 EN1 ER1 E2 EN2 MSZ AP25VG ET1 ET2 MSZ AP35VG ET1 ET2 MSZ AP42VG ET1 ET2 WIRING DIAGRAM 6 OBH788C ...

Страница 13: ...13 MSZ AP50VG E1 EN1 ER1 E2 EN2 MSZ AP50VG ET1 ET2 OBH788C ...

Страница 14: ...14 MSZ AP60VG E1 ER1 E2 MSZ AP71VG E1 ER1 E2 MSZ AP60VG ET1 ET2 MSZ AP71VG ET1 ET2 OBH788C ...

Страница 15: ...15 MSZ AP25VGK E1 EN1 ER1 E2 EN2 MSZ AP35VGK E1 EN1 ER1 E2 EN2 MSZ AP42VGK E1 EN1 ER1 E2 EN2 MSZ AP25VGK ET1 ET2 MSZ AP35VGK ET1 ET2 MSZ AP42VGK ET1 ET2 OBH788C ...

Страница 16: ...16 MSZ AP50VGK E1 EN1 ER1 E2 EN2 MSZ AP50VGK ET1 ET2 OBH788C ...

Страница 17: ...17 MSZ AP60VGK E1 ER1 E2 MSZ AP71VGK E1 ER1 E2 MSZ AP60VGK ET1 ET2 MSZ AP71VGK ET1 ET2 OBH788C ...

Страница 18: ...ant flow in cooling Refrigerant flow in heating Indoor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø9 52 MSZ AP42 50VG MSZ AP42 50VGK ø12 7 MSZ AP71VG MSZ AP71VGK 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 heat...

Страница 19: ...o the number of the indoor unit This setting can be set only when all the following conditions are met The remote controller is powered OFF Weekly timer is not set Weekly timer is not being edited 1 Hold down button on the remote controller for 2 seconds to enter the pairing mode 2 Press button again and assign a number to each remote controller Each press of button advances the number in the foll...

Страница 20: ...unication to Mit subishi Electric s MELCloud Wi Fi service Third party Wi Fi interfaces cannot be connected to MELCloud Mitsubishi Electric is not responsible for any i under performance of a sys tem or any product ii system or product fault or iii loss or damage to any system or product which is caused by or arises from connection to and or use of any third party Wi Fi interface or any third part...

Страница 21: ...te controller with beeps Signal transmitting section Operation display section TEMPERATURE buttons STOP OPERATE OFF ON button Lid Slide the lid down to open the remote controller Slide it down further to get to the weekly timer buttons FAN SPEED CONTROL button OPERATION SELECT button ECONO COOL button CLOCK button WIDE VANE CONTROL button LONG button WEEKLY TIMER set button TIME TIMER set buttons ...

Страница 22: ...ngs on the remote controller 9 2 DRY OPERATION 1 Press STOP OPERATE OFF ON button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select DRY mode with OPERATION SELECT button 3 The set temperature is determined from the initial room temperature 1 Coil frost prevention Coil frost prevention works the same way as that in COOL mode 9 1 1 2 Low outside temperature operation Low...

Страница 23: ...operation with AUTO operation from OFF If the room temperature is higher than the set temperature operation starts in COOL mode If the room temperature is equal to or lower than the set temperature operation starts in HEAT mode 2 Mode change COOL mode changes to HEAT mode when about 15 minutes have passed with the room temperature 1 C below the set temperature HEAT mode changes to COOL mode when a...

Страница 24: ...en STOP OPERATE OFF ON button is pressed POWER OFF b When the operation is stopped by the emergency operation c When ON TIMER is ON standby 6 Dew prevention During COOL or DRY operation with the vane angle at Angle 5 MSZ AP25 35 42 50VG MSZ AP25 35 42 50VGK Angle 4 or 5 MSZ AP60 71VG MSZ AP60 71VGK when the compressor cumulative operation time exceeds 1 hour the vane angle automatically changes to...

Страница 25: ...lay of set time disappears To confirm the standard position the vane moves until it touches the vane stopper Then the vane is set to the select ed angle Confirmation of standard position is performed in the following cases a STOP OPERATE OFF ON button is pressed POWER ON 2 Vertical vane 1 Vane motor drive These models are equipped with a stepping motor for the vertical vane The rotating direction ...

Страница 26: ...ith 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 blinks Pressing selects the day of ...

Страница 27: ...ay of the week whose timer setting is complete will light Press button again to turn the weekly timer OFF goes out NOTE The saved settings will not be cleared when the weekly timer is turned OFF 2 Checking weekly timer setting 1 Press button to enter the weekly timer setting mode blinks 2 Press or buttons to view the setting of the particular day or number 3 Press button to exit the weekly timer s...

Страница 28: ...ow to set i save operation 1 Press STOP OPERATE OFF ON button 2 Select COOL ECONO COOL HEAT or NIGHT mode 3 Press i save button 4 Set the temperature fan speed and airflow direction for i save operation NOTE i save operation cannot be selected during DRY or AUTO mode operation The setting range of HEAT mode i save operation is 10 31 C 2 groups of setting can be saved One for COOL ECONO COOL one fo...

Страница 29: ...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 30: ...he 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 If the abnormal condition is not deleted f...

Страница 31: ...or short or open circuit is detected every 8 seconds during operation Refer to the characteristics of the 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 ...

Страница 32: ...RGENCY OPERATION switch is pressed Refer to outdoor unit service manual Upper lamp Blink on and off at 0 5 sec ond intervals Cause Indoor Outdoor unit Miswiring or trouble of se rial signal Upper lamp 2 time blink Cause Indoor unit Trouble of room temperature indoor coil thermistor Upper lamp 3 time blink Cause Indoor unit Trouble of indoor fan motor Upper lamp 4 time blink Cause Indoor unit Troub...

Страница 33: ...ioner is normal if the UNIT lamp starts blinking It may take a few minutes to blinking If the problem persists check the cable and the connector of Wi Fi interface If all else failed replace the Wi Fi interface If not improve it even if replace the Wi Fi interface replace the indoor electronic control P C board Start Is the UNIT lamp on the Wi Fi interface blinking Can the device such as a smartph...

Страница 34: ...rrent 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 Upper 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 manu...

Страница 35: ... of thermistor Indoor fan motor MF Check 10 6 Check of indoor fan motor MSZ AP25 35 42 50VG MSZ AP25 35 42 50VGK Horizontal vane motor upper MV1 Measure the resistance between the terminals with a tester Temperature 10 30 C Color of the lead wire Normal RED SKY 262 328 Ω SKY SKY RED SKY SKY ROTOR MSZ AP25 35 42 50VG MSZ AP25 35 42 50VGK Horizontal vane motor lower MV2 Measure the resistance betwee...

Страница 36: ...the voltage between CN211 and 2 Measure the voltage between CN211 and If more than 12 seconds passes after EMERGENCY OPERATION switch is pressed 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 indoor electronic control P C board rise to the range of 3 to 6 V DC within 12 seconds after EMERGENCY OPERATION switch is presse...

Страница 37: ... 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 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 section lights up when the STOP OPERATE...

Страница 38: ...MΩ or more Replace the fuse F11 and the indoor fan motor 3 No Replace the fuse F11 3 Measure the resistance of resistor R111 MSZ AP25 35 42VG AP25 35 42VGK reactor L112 MSZ AP50VG AP50VGK on the indoor electronic control P C board No Replace the indoor electronic control P C board and the indoor fan motor Replace the indoor electronic control P C board Measure the resistance of the vane motor coil...

Страница 39: ...ndoor fan motor Short open 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 F11 Are the varistor NR11 burnt and the fuse F11 blown Be sure to check both the fuse and the varistor in any case No Yes No Is the fus...

Страница 40: ...Y OPERATION switch A Is serial signal error indicated 6 minutes later B Yes Reinstall either the unit or the light away from each other Attach a filter on remote control receiv ing section of the indoor unit No When the emergency operation starts does the rated voltage occur for 2 seconds between indoor terminal block S2 and S3 Yes Does the indoor upper lamp of OPERATION INDICATOR lamp blink conti...

Страница 41: ...indoor terminal block S1 and S2 Confirmation of power voltage Replace the indoor electronic control P C board 2 Be careful of the residual voltage of smoothing capacitor Replace the outdoor control P C board 2 Is there any error of the indoor outdoor connecting wire such as the damage of the wire intermediate connection poor contact to the terminal block Replace the indoor outdoor connecting wire ...

Страница 42: ...he 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 outd...

Страница 43: ...SZ AP25 35 42VG MSZ AP25 35 42VGK Reactor L112 MSZ AP50VG MSZ AP50VGK Indoor fan motor CN211 325 V DC GND high voltage DC 15 V DC 3 6 V DC 0 or 15 V DC Indoor electronic control P C board Display P C board Switch buzzer P C board Fuse F11 Varistor NR11 12 V DC GND To disable Auto restart function cut the Jumper wire to JR77 Refer to 8 3 Emergencyoperation switch E O SW SW1 Room temperature thermis...

Страница 44: ...o Indoor fan motor CN211 Resistor R111 Vane motor CN151 12 V DC 5 V DC GND To disable Auto restart function cut the Jumper wire to JR77 Refer to 8 3 Indoor electronic control P C board Fuse F11 T3 15AL250V Varistor NR11 Indoor terminal P C board Receiver P C board Display P C board 3 6 VDC 15 VDC GND High voltage DC 325 VDC 0 or 15 VDC Switch buzzer P C board Please replace the fuse after removing...

Страница 45: ...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 Detaching method of the terminal with locking mechanism The terminal which has the locking mechanism can be detached as shown below There are 2 types of the terminal with locking mechanism The terminal without locking mechanism can be detached...

Страница 46: ...the panel L toward you to remove Removing the panel F Photos 1 2 3 Figure 1 1 Remove the front panel and the horizontal vanes U L 2 Remove the panels R L 3 Remove the Wi Fi interface on the right side of the panel F Pull out its cable and remove the cable tie Refer to section 2 MSZ AP VGK 4 Remove the panel F from the bottom to the top Removing the panel U Photo 2 Figure 1 1 Remove the front panel...

Страница 47: ... Photo 3 Note Install the Wi Fi interface before installing the panel R 1 Install the panel F 2 Fasten the cable of the Wi Fi interface to the part of the panel F with a cable tie 3 Stow the cable of the Wi Fi interface in the area 4 Attach the Wi Fi interface so that its cable is facing away from you on the right side 5 Fasten the cable of the Wi Fi interface to the water cover 6 Attach the lead ...

Страница 48: ...to 5 Indoor electronic control P C board CN151 Vane motors CN211 Indoor fan motor CN112 Indoor coil thermistors 13 Remove the electrical box Photo 4 Photo 5 4 Removing the indoor terminal P C board the switch board the display board the receiver board and the indoor electronic control P C board 1 Remove the indoor electrical box Refer to section 3 2 Remove the screw of the terminal block Photo 5 3...

Страница 49: ...the following connector Photo 5 Indoor electronic control P C board CN151 Vane motors 4 Pull out the drain hose from the nozzle assembly Pull and remove the nozzle assembly refer to section 5 Removing the vane motors U L horizontal Photo 6 5 Remove the 2 screws of the vane motor unit U L and remove the lead wires of the vane motors U L horizontal 6 Remove the screw of the vane motor unit L horizon...

Страница 50: ... it by pulling to the right Photo 10 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 11 1 When attaching the line flow fan screw the line flow fan so 4 mm gap is provided between the right end of the li...

Страница 51: ... electronic control P C board CN110 Wi Fi interface 6 Remove the cable of the Wi Fi interface from the water cover 7 Remove the lead wire of the Wi Fi interface from the hook of the cable guide How to install the Wi Fi interface Photo 3 Note Install the Wi Fi interface before installing the panel 1 Install the panel F 2 Fasten the cable of the Wi Fi interface to the part of the panel with a cable ...

Страница 52: ...tronic control P C board and unhook all lead wires 9 Remove the screw of the terminal block on the indoor terminal P C board 10 Remove the indoor terminal P C board and the indoor electronic control P C board Photo 3 Photo 4 4 Removing the indoor electrical box 1 Remove the panel Refer to section 1 and the right corner box 2 Remove the cable of the Wi Fi interface MSZ AP VGK from the water cover R...

Страница 53: ... from the arm of the vertical vane 3 Remove the screw of the vertical vane motor unit and pull the vertical vane motor unit 4 Remove the screws of the vertical vane motor unit cover 5 Remove the crank of the vertical vane motor unit from the shaft of the vane motor 6 Remove the vertical vane motor from the vertical vane motor unit 7 Disconnect the connector of vertical vane motor from the vertical...

Страница 54: ...or 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 9 Remove the screws fixing the left side of the heat exchanger 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 so 5 mm gap is provided betwe...

Страница 55: ...ked position Do not pull the lead wire when removing the indoor coil thermistor Holder shape Clip shape When fixing the indoor coil thermistor to the clip shape holder shape part the lead wire should point down 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 par...

Страница 56: ...N Copyright 2017 MITSUBISHI ELECTRIC CORPORATION Issued Dec 2019 No OBH788 REVISED EDITION C Issued Mar 2019 No OBH788 REVISED EDITION B Issued May 2018 No OBH788 REVISED EDITION A Published Dec 2017 No OBH788 Made in Japan Specifications are subject to change without notice ...

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