Mitsubishi MSZ-EF09NAB Скачать руководство пользователя страница 1 | Manualshive

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CONTENTS

1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ·····················6
5. WIRING DIAGRAM ·····································7
6. REFRIGERANT SYSTEM DIAGRAM ·············8
7. SERVICE FUNCTIONS ································9
8. MICROPROCESSOR CONTROL ················ 11
9. TROUBLESHOOTING ······························· 19

10. DISASSEMBLY INSTRUCTIONS ················· 31

SERVICE MANUAL

INDOOR UNIT

PARTS CATALOG (OBB736)

No. OBH736

REVISED EDITION-A

Models

MSZ-EF09NAW -

U1

MSZ-EF12NAW -

U1

MSZ-EF15NAW -

U1

MSZ-EF18NAW -

U1

MSZ-EF09NAB -

U1

MSZ-EF12NAB -

U1

MSZ-EF15NAB -

U1

MSZ-EF18NAB -

U1

MSZ-EF09NAS -

U1

MSZ-EF12NAS -

U1

MSZ-EF15NAS -

U1

MSZ-EF18NAS -

U1

Outdoor unit service manual
MXZ-

∙

C

∙

NA(HZ) Series (OCH573)

OBH736 is void.

Revision A:

• 4. OUTLINES AND DIMENTIONS has been

modified.

• Some descriptions have been modified.

1
2
3
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Содержание MSZ-EF09NAB

Страница 1: ...Y INSTRUCTIONS 31 SERVICE MANUAL INDOOR UNIT PARTS CATALOG OBB736 No OBH736 REVISED EDITION A Models MSZ EF09NAW U1 MSZ EF12NAW U1 MSZ EF15NAW U1 MSZ EF18NAW U1 MSZ EF09NAB U1 MSZ EF12NAB U1 MSZ EF15NAB U1 MSZ EF18NAB U1 MSZ EF09NAS U1 MSZ EF12NAS U1 MSZ EF15NAS U1 MSZ EF18NAS U1 Outdoor unit service manual MXZ C NA HZ Series OCH573 OBH736 is void Revision A 4 OUTLINES AND DIMENTIONS has been modi...

Страница 2: ... labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions MSZ EF09NAW U1 MSZ EF12NAW U1 MSZ EF15NAW U1 MSZ EF18NAW U1 MSZ EF09NAB U1 MSZ EF12NAB U1 MSZ EF15NAB U1 MSZ EF18NAB U1 MSZ EF09NAS U1 MSZ EF12NAS U1 MSZ EF15NAS U1 MSZ EF18NAS U1 1 New model Revision A 4 OUTLINES AND ...

Страница 3: ...tallation 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 NAB type only 1 Air cleaning filter 2 Remote controller Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal vane ...

Страница 4: ...ampacity A 1 0 Fan motor F L A 0 67 Airflow Super high High Med Low Quiet COOL Dry Wet CFM 371 293 222 162 141 319 252 191 140 121 371 293 222 162 141 319 252 191 140 121 364 314 272 233 205 313 270 234 200 176 388 328 279 240 205 334 282 240 206 176 HEAT Dry CFM 420 314 219 162 141 448 314 219 162 141 448 350 275 222 194 466 392 318 258 226 Moisture removal pt h 0 6 2 1 3 6 4 4 Sound level Super ...

Страница 5: ...m and furniture arranged inside the room Model Mode Function Airflow CFM Air speed ft s Coverage ft MSZ EF09NAW MSZ EF09NAB MSZ EF09NAS HEAT Dry 420 19 5 29 2 COOL Dry 371 17 2 25 8 Wet 319 15 5 23 3 MSZ EF12NAW MSZ EF12NAB MSZ EF12NAS HEAT Dry 448 20 8 31 1 COOL Dry 371 17 2 25 8 Wet 319 15 5 23 3 MSZ EF15NAW MSZ EF15NAB MSZ EF15NAS HEAT Dry 448 20 8 31 1 COOL Dry 364 16 8 25 4 Wet 313 15 2 22 9 ...

Страница 6: ...8 7 8 1 3 4 1 4 9 3 16 1 3 4 2 7 16 2 15 16 14 15 16 14 1 2 34 13 16 34 7 16 3 16 9 13 16 7 11 16 3 16 2 13 16 1 7 8 26 11 16 6 8 0 1 4 3 15 16 4 5 16 3 11 16 2 3 16 2 5 16 11 3 4 2 1 8 Air out Installation plate Piping Drain hose 7 16 1 Oblong hole 7 16 13 16 Oblong hole Installation plate Indoor unit Wall hole ĭ2 15 16 Air in In case of left left back or left under piping using spacer 4 3 8 or m...

Страница 7: ...7 WIRING DIAGRAM 5 MSZ EF09NAW MSZ EF12NAW MSZ EF15NAW MSZ EF18NAW MSZ EF09NAB MSZ EF12NAB MSZ EF15NAB MSZ EF18NAB MSZ EF09NAS MSZ EF12NAS MSZ EF15NAS MSZ EF18NAS OBH736A ...

Страница 8: ...EF15NAS MSZ EF18NAS Indoor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø3 8 ø9 52 MSZ EF09 12 ø1 2 ø12 7 MSZ EF15 18 with heat insulator Refrigerant pipe ø1 4 ø6 35 with heat insulator Indoor coil thermistor RT12 main Indoor coil thermistor RT13 sub Refrigerant flow in cooling Refrigerant flow in heating OBH736A ...

Страница 9: ...he 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 followi...

Страница 10: ...hen 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 breaker OFF...

Страница 11: ...s regardless of shape of the indication Indication Operation state Room temperature The unit is operating to reach the set temperature About 4 F 2 C or more away from set tempera ture The room temperature is approaching the set tem perature About 2 to 4 F 1 to 2 C from set temperature Standby mode Only during multi system operation Lighted Blinking Not lighted Signal transmitting section Operation...

Страница 12: ...on 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 exchanger becomes too low The compressor stops ...

Страница 13: ...essor 2 The horizontal vane angle and mode change as follows by pressing VANE CONTROL button NOTE 2 FOR MULTI SYSTEM AIR CONDITIONER OUTDOOR UNIT MXZ series Multi system air conditioner can connect two or more indoor units with one outdoor unit When you try to operate 2 or more indoor units with one outdoor unit simultaneously one for the cooling and the others for heating the operation mode of th...

Страница 14: ...emperature is higher the air conditioner can keep comfort As a result energy can be saved To cancel this operation select a different mode or press one of the following buttons in ECONO COOL operation ECONO COOL or 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 Angle 4 5 STOP operation OFF and ...

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: ...temperature can not be set to 50 F 10 C The weekly timer operation and SMART SET operation cannot be used together 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 3 Press and buttons to set ON OFF time and temperature E g ON AM 6 00 and 75 F 24 C are selected Pressing selects ON OFF...

Страница 17: ... complete and transmit the weekly timer setting which was blink ing goes out and the current time will be displayed 2 Checking weekly timer setting 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 setting NOTE When all days of the week are selec...

Страница 18: ...N INDICATOR lamp will light up The first 30 minutes of operation is the test run operation This opera tion is for servicing The indoor fan runs at High speed and the tem perature control does not work After 30 minutes of test run operation the system shifts to EMERGENCY COOL HEAT MODE with a set temperature of 75 F 24 C The fan speed shifts to Medium The coil frost prevention works even in the tes...

Страница 19: ...ctor and 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 9 2 9 3 and 9 4 4 How to replace batteries Weak batteries may cause the remote controller malfunction In this case replace the batteries to operate the remote controll...

Страница 20: ...lure mode recall function mentioned above Press STOP OPERATE OFF ON button of the remote 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 Release the failure mode recall function according to Releasing the failure mode recall function mentioned above Yes Blinks ...

Страница 21: ...s of the main indoor coil ther mistor the sub indoor coil thermistor 9 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 9 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 12 seconds after the indoor fan motor i...

Страница 22: ...ink 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 fan motor Left lamp 4 time blink Cause Indoor unit Trouble of indoor unit control system Left lamp 5 time blink Cause Outdoor unit Outdoor power ...

Страница 23: ...he indoor electronic control P C board 5 Outdoor power sys tem Left lamp blinks 5 time blink 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 Check the stop valve 6 Outdoor thermistors Left lamp blinks 6...

Страница 24: ... manual 9 5 TROUBLE CRITERION OF MAIN PARTS MSZ EF09NAW MSZ EF12NAW MSZ EF15NAW MSZ EF18NAW MSZ EF09NAB MSZ EF12NAB MSZ EF15NAB MSZ EF18NAB MSZ EF09NAS MSZ EF12NAS MSZ EF15NAS MSZ EF18NAS Part name Check method and criterion Figure Room temperature thermistor RT11 Indoor coil thermistor RT12 RT13 Measure the resistance with a tester Refer to 9 7 Test point diagram and voltage Indoor electronic con...

Страница 25: ...ed 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 Mea...

Страница 26: ...tach a filter on receiving part Assign a number of remote controller Refer to 7 2 Check if the unit operates with the remote controller Does the unit operate with the remote controller Yes No OK 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 ph...

Страница 27: ...F11 3 Measure the resistance of resistor R111 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 9 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 Connec...

Страница 28: ...ond ON 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 V DC between the indoor terminal block S2 and S3 Confirmation of serial signal Yes Check the wiring If there are any errors of the indoor outdoor connecting wire such as the dama...

Страница 29: ... strength 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 ...

Страница 30: ... 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 motor CN151 Indoor coil ther mistor RT12 RT13 CN112 9 7 TEST POINT DIAGRAM AND VOLTAGE MSZ EF09NAW MSZ EF12NAW MSZ EF15NAW MSZ EF18NAW MSZ EF09NAB MSZ EF12NAB MSZ EF15NAB MSZ EF18NAB MSZ EF09NAS...

Страница 31: ...g DISASSEMBLY INSTRUCTIONS 10 10 1 MSZ EF09NAW MSZ EF12NAW MSZ EF15NAW MSZ EF18NAW MSZ EF09NAB MSZ EF12NAB MSZ EF15NAB MSZ EF18NAB MSZ EF09NAS MSZ EF12NAS MSZ EF15NAS MSZ EF18NAS NOTE Turn OFF power supply before disassembly OPERATING PROCEDURE PHOTOS FIGURES 1 Removing the panel 1 Remove the horizontal vanes 2 Remove the screw caps of the panel Remove the screws of the panel 3 Unhook the lower pa...

Страница 32: ...he screw of the conduit plate and the con duit plate Photo 4 5 Remove the screw fixing the electrical box 6 Remove the indoor electrical box Refer to section 2 7 Remove the ground wire connected to the electrical box from the indoor power P C board 8 Disconnect the following connectors Indoor electronic power P C board CN201 Terminal block CN202 To the indoor electronic control P C board 9 Remove ...

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 section 5 Photo 5 5 Removing the horizontal vane motor 1 Remove the nozzle assembly Refer to section 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 fro...

Страница 34: ...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 6 9 Remove the screws fixing the left side and the upper right side of the heat exchanger Photo 8 Photo 9 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 f...

Страница 35: ...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 36: ... OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2015 MITSUBISHI ELECTRIC CORPORATION Issued Oct 2018 No OBH736 REVISED EDITION A Published Oct 2015 No OBH736 Made in Japan ...

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