Mitsubishi Electric MSZ-HM09NA-U1 Скачать руководство пользователя страница 32 | Manualshive

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OPERATING PROCEDURE

PHOTOS

4. Removing the nozzle assembly

(1) Remove the panel (Refer to 1.) and the corner box.
(2) Remove the indoor/outdoor connecting wire (Refer to

2 (2)-(7).).

(3) Remove the indoor electronic control P.C. board hold-

er.

(4) Pull out the drain hose from the nozzle assembly and

remove the nozzle assembly.

Photo 5

5. Removing the horizontal vane motor

(1) Remove the nozzle assembly. (Refer to 5.)
(2) Remove the screws of the horizontal vane motor unit.
(3) Disconnect the connector from the horizontal vane

motor.

(4) Remove the screws of the horizontal vane motor.
(5) Remove the horizontal vane motor from the horizontal

vane motor unit.

32

Screws of horizontal vane motor unit

OBH746B

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Содержание MSZ-HM09NA-U1

Страница 1: ...A U1 MSZ HM15NA U1 MSZ HM18NA U1 MSZ HM24NA U1 CONTENTS 1 TECHNICAL CHANGES 2 2 PART NAMES AND FUNCTIONS 3 3 SPECIFICATION 5 4 OUTLINES AND DIMENSIONS 7 5 WIRING DIAGRAM 8 6 REFRIGERANT SYSTEM DIAGRAM 9 7 SERVICE FUNCTIONS 10 8 MICROPROCESSOR CONTROL 12 9 TROUBLESHOOTING 16 10 DISASSEMBLY INSTRUCTIONS 30 No OBH746 REVISED EDITION B Please void OBH746 REVISED EDITION A Revision B 3 1 OPERATING RANG...

Страница 2: ...st 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 breakdown or accidents caused by failure to follow the instructions Revision A MSZ HM09 12 15 18NA U1 have been added Revision B 3 1 OPERATING RANG...

Страница 3: ...ntal vane Air outlet Air lter Air inlet Heat exchanger Front panel Air cleaning lter Anti Allergy Enzyme Filter option Display section Remote controller ACCESSORIES Installation plate 1 Attachment screws for the installation plate 4 25 mm 5 Battery AAA for remote controller 2 Wireless remote controller 1 Felt tape For left or left rear piping 1 OBH746B ...

Страница 4: ...ller 1 Felt tape For left or left rear piping 1 Battery AAA for remote controller 2 Remote controller Operation indicator lamp Remote control receiving section Emergency operation switch Horizontal vane Air outlet Air lter Air inlet Heat exchanger Front panel Air cleaning lter Anti Allergy Enzyme Filter option Display section OBH746B ...

Страница 5: ...ntrol voltage by built in transformer 12 24 VDC NOTE Test conditions are based on AHRI 210 240 Indoor model MSZ HM09NA MSZ HM12NA MSZ HM15NA Power supply V phase Hz 208 230 1 60 Max fuse size time delay Disconnect switch A 15 Min circuit ampacity A 1 0 Fan motor F L A 0 76 AirÀow Super High High Med Low COOL Dry Wet CFM 399 321 237 170 364 286 201 134 533 420 335 272 498 385 300 237 HEAT Dry CFM 4...

Страница 6: ... to the position where the air speed is 1 ft s when air is blown out horizontally from the unit properly at the High speed posi tion The coverage should be used only as a general guideline since it varies accord ing to the size of the room and furniture arranged inside the room Model Mode Function AirÀow CFM Air speed ft s Coverage ft MSZ HM09NA HEAT Dry 406 20 6 29 5 COOL Dry 321 16 3 23 5 Wet 28...

Страница 7: ...1 16 5 1 2 2 1 4 2 1 4 2 1 2 9 13 16 3 16 35 13 16 36 5 16 1 4 27 15 16 6 5 16 2 1 16 12 2 9 16 2 13 16 2 1 2 2 9 16 3 11 16 2 1 16 9 7 16 10 5 16 1 8 8 7 8 8 7 8 3 11 16 8 3 4 10 3 8 2 5 16 15 7 8 8 11 16 3 11 16 7 8 1 7 16 Oblong hole 7 16 13 16 Oblong hole Installation plate Indoor unit Wall hole Ø3 Air in Installation plate 8 1 16 15 3 16 1 5 8 8 11 16 3 1 11 16 2 9 16 2 9 16 4 1 2 5 3 4 1 4 A...

Страница 8: ...8 MSZ HM18NA MSZ HM24NA 5 WIRING DIAGRAM MSZ HM09NA MSZ HM12NA MSZ HM15NA OBH746B ...

Страница 9: ...r RT12 main Indoor coil thermistor RT13 sub Refrigerant flow in cooling Refrigerant flow in heating 6 REFRIGERANT SYSTEM DIAGRAM Indoor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø3 8 ø9 52 MSZ HM09 12NA ø1 2 ø12 7 MSZ HM15NA with heat insulator Refrigerant pipe ø1 4 ø6 35 with heat insulator Indoor coil thermistor RT12 main Indoor coil the...

Страница 10: ...M24NA J2 J1 The remote controller P C board has the print J1 and J2 Solder J1 and J2 according to the number of indoor unit as shown in Table 1 After modification press the RESET button NOTE For modification take out the batteries and press the STOP OPERATE OFF ON button 2 or 3 times at first After finish modification put back the batteries then press the RESET button Table 1 1 unit operation 2 un...

Страница 11: ...h of the starting current by adding to the system that allows the units to start one by one 7 3 AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller the operation mode the set temperature and the fan speed are memorized by the indoor electronic control P C board AUTO RESTART FUNCTION automatically starts operation in the same mode just before the shut off of the main...

Страница 12: ... is operating to reach the set temperature About 4 F 2 C or more away from set temperature The room temperature is approaching the set tem perature About 2 to 4 F 1 to 2 C from set temperature Lighted Blinking Not lighted 8 1 COOL OPERATION 1 Press STOP OPERATE OFF ON button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select COOL mode with OPERATION SELECT button 3 Pres...

Страница 13: ...ature 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 once the indoor outdoor fans stop the 4 way valve reverses and ...

Страница 14: ...lso the horizontal vane swings in various cycle SWING operation makes you feel cooler than set temperature So even though the set temperature is higher the air conditioner can keep comfort As a result energy can be saved ECONO COOL operation is cancelled when ECONO COOL button is pressed once again or VANE CONTROL button is pressed or change to other operation mode 8 5 TIMER OPERATION ON OFF TIMER...

Страница 15: ...ncy 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 switch during normal operation Operation mode COOL HEAT Set temperature 75 F 24 C 75 F 24 C Fan speed Med M...

Страница 16: ... starting ser vice work 2 Before servicing check that the 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 9 2 9 3 and 9 4 4 How to replace batteries Weak batteries may cause the remote controller malfunction In this case replace ...

Страница 17: ...ormal point by referring to the indoor unit failure mode table Refer to 9 2 2 Make sure to check at least 2 consecutive blinking cycles 2 Releasing the failure mode recall function Release the failure mode recall function by the following procedures Turn OFF the power supply and turn it ON again Press RESET button of the remote controller The outdoor unit is abnormal Check the blinking pattern and...

Страница 18: ...of the main indoor coil ther mistor the sub indoor coil thermistor 9 7 3 time Àash 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 Àash 2 5 second OFF Indoor fan motor The rotational frequency feedback signal is not emitted for 12 seconds after the indoor fan motor is op...

Страница 19: ...lash ON and OFF at 0 5 second intervals Cause Indoor Outdoor unit Miswiring or trouble of se rial signal Upper lamp 2 time Àash Cause Indoor unit Trouble of room temperature indoor coil thermistor Upper lamp 3 time Àash Cause Indoor unit Trouble of indoor fan motor Upper lamp 4 time Àash Cause Indoor unit Trouble of indoor unit control system Upper lamp 5 time Àash Cause Outdoor unit Outdoor power...

Страница 20: ...ectronic control P C board Replace the indoor electronic control P C board 5 Outdoor power sys tem Upper lamp Àashes 5 time Àash 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 Ou...

Страница 21: ... RT12 RT13 Measure the resistance with a tester Refer to 9 7 Test point diagram and voltage 1 or 2 Indoor electronic control P C board for the chart of thermistor Indoor fan motor MF Check 9 6 Horizontal vane motor MV Measure the resistance between the terminals with a tester Part temperature 50 86 F 10 30 C Color of the lead wire Normal RED BLK 223 268 BLK BLK RED BLK BLK ROTOR ROTOR OBH746B ...

Страница 22: ...C board is normal Does the voltage between CN211 and on the power P C board rise to the range of 3 to 6 VDC 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 Measure the voltage between CN211 and while the fan motor is rotating Rep...

Страница 23: ...rt type within the range of 3 28 ft 1m 2 Yes No Reinstall the unit away from lights Attach a lter 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 section lights up when t...

Страница 24: ...erminal P C board MSZ HM09 12 15NA Replace the indoor electronic control P C board Measure the resistance of the vane motor coil Refer to 9 5 Short open 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...

Страница 25: ...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 VDC between indoor terminal block S2 and S3 Con rmation 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...

Страница 26: ...era tion starts Turn ON the power supply Does the LED on the inverter P C board repeat 3 6 second OFF and 0 8 sec 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 Turn OFF the power supply Remove the bridge between outdoor terminal block S2 and S3 Yes 3 Be s...

Страница 27: ... strength or the installation condition combination of speci c conditions such as antennas or wiring Check the followings 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 28: ...motor CN211 0 6 V 3 6 VDC 15 VDC GND high voltage DC 294 325 VDC Timer short mode point JPG JPS Refer to 7 1 Room temperature thermistor RT11 CN111 Indoor coil thermistor RT12 RT13 CN112 Vane motor CN151 Connector to Indoor power P C board CN10A 12 VDC 5 VDC To disable Auto restart function solder the Jumper wire to JR07 Refer to 7 3 Emergency operation switch SW1 2 Indoor electronic control P C b...

Страница 29: ...r to Indoor fan motor CN211 Resistor R111 Connector to Terminal block CN201 3 6 VDC 15 VDC GND High voltage DC 294 325 VDC 0 or 15 VDC Timer short mode point Refer to 7 1 Room temperature thermistor RT11 CN111 Connector to Indoor coil thermistor RT12 RT13 CN112 Vane motor CN151 Connector to indoor power P C board CN10A 12V DC 5V DC To disable Auto restart function cut the Jumper wire to JR77 Refer...

Страница 30: ...rizontal vanes A 1 Slide the sleeve and check if there is a locking lever or not 2 The terminal with this connector has the locking 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 Terminal with locking mechanism Detaching points The terminal which has the locking mechanism can be detached a...

Страница 31: ...r electronic control P C board Photo 2 Photo 3 Photo 4 3 Removing the indoor power P C board the indoor terminal P C board and the electrical box 1 Remove the panel Refer to 1 and the corner box 2 Remove the indoor outdoor connecting wire and the indoor electric control P C board holder Refer to 2 2 8 3 Remove the screw of the conduit cover and the con duit cover 4 Remove the screw of the conduit ...

Страница 32: ...the drain hose from the nozzle assembly and remove the nozzle assembly Photo 5 5 Removing the horizontal vane motor 1 Remove the nozzle assembly Refer to 5 2 Remove the screws of the horizontal vane motor unit 3 Disconnect the connector from the horizontal vane motor 4 Remove the screws of the horizontal vane motor 5 Remove the horizontal vane motor from the horizontal vane motor unit 32 Screws of...

Страница 33: ...ndoor coil thermistor from the heat exchanger Install the indoor coil thermistor in its former position when assembling it Refer to Photo 9 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 32 inch 4 mm gap is provided between the right end of the l...

Страница 34: ...disassembly OPERATING PROCEDURE PHOTOS 1 Removing the panel 1 Remove the screw caps on the panel and remove the screws of the panel 2 Pull the panel slightly toward you and then remove the panel by pushing it upward 34 Photo 1 Screws of the panel Front panel OBH746B ...

Страница 35: ...cover and remove the water cover 12 Remove the screw of the electrical cover and remove the electrical cover 13 Disconnect the CN211 Indoor fan motor from the indoor power P C board 14 Remove the upper catch of the electrical box and pull out the electrical box To attach the electrical box pass the wires connecting the indoor power P C board and the indoor electronic control P C board through A Pa...

Страница 36: ...k side of the control P C board holder 5 Unhook the catches of the control P C board holder and open the control P C board holder 6 Remove the indoor electronic control P C board from the control P C board holder 4 Removing the vane motor 1 Remove the panel Refer to 1 Remove the corner box 2 Remove the control P C board holder water cover and the electrical box Refer to 2 3 Pull out the drain hose...

Страница 37: ... the motor 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 and upper right 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 ...

Страница 38: ... 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 part About the same length Copyright 2015 MITSUBISHI ELECTRIC CORPORATION Distributed in Mar 2016 No OBH74...

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