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Mitsubishi Electric MSXY-FN07VE-R1, Руководство по обслуживанию

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Mitsubishi Electric MSXY-FN07VE-R1 Скачать руководство пользователя страница 36

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MSXY-FN07VE  MSXY-FN10VE  MSXY-FN13VE MSXY-FN18VE

1. Indoor power P.C. board

10-7. TEST POINT DIAGRAM AND VOLTAGE

Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)

Temperature (°C)

Resistance (kΩ)

Fuse (F11)
T3.15AL250V

Varistor (NR11)

Connector to indoor electronic 
control P.C. board (CN20A)

5 V DC

12 V DC

GND

Connector to 
Indoor fan motor
(CN211)

Resistor (R111)

Connector to
Terminal block (CN201)

(+)3-6 V DC

15 V DC

(-) GND

(High voltage DC)

325 V DC

(+)0 or 15 V DC

Timer short mode point
(Refer to 8-1.)

Room temperature thermistor RT11 (CN111)

Connector to 
Indoor coil 
thermistor 
RT12, RT13 
(CN112)

Vane motor 
(CN151)

Connector to indoor 
power P.C. board 
(CN10A)

12 V DC

5 V DC

To disable "Auto restart function",
cut the Jumper wire to JR77.
(Refer to 8-3.)

Emergency 
operation
switch (E.O. 
SW) (SW1)

2. Indoor electronic control P.C. board

GND

Interlock 
switch (FAN) 
(CN1R1)

OBH779C

Содержание MSXY-FN07VE-R1

Страница 1: ...R CONTROL 15 10 TROUBLESHOOTING 21 11 DISASSEMBLY INSTRUCTIONS 38 No OBH779 REVISED EDITION C MSXY FN20VE MSXY FN24VE OBH779 REVISED EDITION B is void Models MSXY FN07VE R1 R2 MSXY FN10VE R1 R2 MSXY FN13VE R1 R2 MSXY FN18VE R1 R2 MSXY FN20VE R1 R2 MSXY FN24VE R1 R2 Revision C The drawing of the printed circuit board of the remote controller for MSXY FN07 10 13 18 20 24VE R2 have been corrected in ...

Страница 2: ...cts We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions Revision A Model names of the outdoor units have been added to 10 6 How to check miswiring and serial signal error Revision B MSXY FN07 10 13 18 20 24VE R2 have been added Revision C The drawing of the printed circuit board of the remote controller ...

Страница 3: ... compatible with the outdoor units with low standby power control Connecting the following models to the MXY series with the low standby power control enables the low standby power control The following models may be connected to the MXY series with the low standby power control after once connected to the MXY series without the low standby power control and operated for example because of relocat...

Страница 4: ...emote control receiving section Emergency operation switch Display section Horizontal vane Vertical vane Fan guard Air outlet Fan Air filter Nano platinum filter Air inlet Heat exchanger Front panel Remote controller Air cleaning filter Microparticle catching filter Anti Allergy Enzyme Filter option OBH779C ...

Страница 5: ...ing filter Microparticle catching filter Anti Allergy Enzyme Filter option ACCESSORIES Model MSXY FN07VE MSXY FN10VE MSXY FN13VE MSXY FN18VE MSXY FN20VE MSXY FN24VE Installation plate 1 Installation plate fixing screw 4 25 mm 5 Wireless remote controller 1 Felt tape Used for left or left rear piping 1 Battery AAA for remote controller 2 Remote controller holder 1 Fixing screw for 3 5 16 mm Black 2 ...

Страница 6: ...gh 546 726 960 Med 378 570 810 Low 246 372 546 Sound level Super High dB A 42 45 47 49 50 High 36 44 45 Med 29 30 38 41 Low 19 28 30 Fan speed Super High rpm 1 000 1 120 1 200 1 250 High 860 1 070 1 050 Med 660 890 920 Low 500 650 680 Fan speed regulator 4 Remote controller model KM15D NOTE Test conditions are based on ISO 5151 Cooling Indoor Dry bulb temperature 27 C Wet bulb temperature 19 C Out...

Страница 7: ...ow 306 462 648 SLow 246 372 546 Sound level Super High dB A 42 45 47 49 50 High 36 44 45 Med 29 30 38 41 Low 24 33 35 SLow 19 28 30 Fan speed Super High rpm 1 000 1 120 1 200 1 250 High 860 1 070 1 050 Med 660 890 920 Low 570 760 780 SLow 500 650 680 Fan speed regulator 5 Remote controller model KH18A NOTE Test conditions are based on ISO 5151 Cooling Indoor Dry bulb temperature 27 C Wet bulb temp...

Страница 8: ...EVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED 47 MSXY FN13VE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 NC 10 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 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 45 MSXY FN18VE NC 60 NC 50 NC 40 NC 30 ...

Страница 9: ... 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED 50 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 50 NC 10 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MI...

Страница 10: ...g hole Installation plate Indoor unit Wall hole ø65 Piping Insulation ø37 O D Liquid line ø7 0 39m Flared connection ø6 35 Gas line ø9 52 0 34m Flared connection ø9 52 MSXY FN07 10 13VE ø12 7 MSXY FN18VE Drain hose Insulation ø28 Connected part ø16 O D 19 159 58 MSXY FN20VE MSXY FN24VE 19 159 58 Piping Insulation ø50 O D Liquid line ø8 0 39m Flared connection ø6 53 MSXY FN20VE ø9 52 MSXY FN24VE Ga...

Страница 11: ...11 WIRING DIAGRAM 6 MSXY FN07VE MSXY FN10VE MSXY FN13VE MSXY FN18VE MSXY FN20VE MSXY FN24VE OBH779C ...

Страница 12: ... Indoor coil thermistor RT13 sub Refrigerant flow in cooling Unit mm MSXY FN07VE MSXY FN10VE MSXY FN13VE MSXY FN18VE MSXY FN20VE MSXY FN24VE Indoor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø12 7 MSXY FN20VE ø15 88 MSXY FN24VE with heat insulator Refrigerant pipe ø6 35 MSXY FN20VE ø9 52 MSXY FN24VE with heat insulator Indoor coil thermisto...

Страница 13: ...ck the batteries then press the RESET button MSXY FN07VE MSXY FN10VE MSXY FN13VE MSXY FN18VE MSXY FN20VE MSXY FN24VE J2 J1 Table 1 1 unit operation 2 units operation 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 SJ1 J1 Same as at left Same as at left No 3 unit Solder SJ2 J2 Same as at left No 4 unit Solder both SJ1 J1...

Страница 14: ...main voltage drop or the rush of the starting current by adding to the system that allows the units to start one by one 8 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 bef...

Страница 15: ... COOL button Distance of signal About 6 m Beep s is are heard from the indoor unit when the signal is received ON TIMER button CLOCK SET button TIME SET buttons FORWARD button BACKWARD button OFF TIMER button RESET button VANE CONTROL button SMART SET button Signal transmitting section Operation display section TEMPERATURE buttons STOP OPERATE OFF ON button Battery replacement indicator FAN SPEED ...

Страница 16: ...e indoor fan operates at the set speed and the compressor stops This mode continues until the temperature of indoor heat exchanger rises 2 Low outside temperature operation When the outside temperature is lower low outside temperature operation starts and the outdoor fan slows or stops Lit Blinking Not lit Operation Indicator lamp The operation indicator at the right side of the indoor unit indica...

Страница 17: ...does not change by room temperature afterwards Under the ON TIMER operation mode is determined according to the room temperature at the startup of operation 4 The initial set temperature is decided by the initial room temperature Initial room temperature Model Initial set temperature 26 С or more COOL mode of I FEEL CONTROL 24 С 25 to 26 С Initial room temperature minus 2 С Less than 25 С DRY mode...

Страница 18: ...le 4 or 5 when the compressor cumulative operation time exceeds 1 hour the vane angle automatically changes to Angle 3 for dew prevention 7 SWING mode By selecting SWING mode with VANE CONTROL button the horizontal vane swings vertically 8 POWERFUL COOL mode When POWERFUL COOL button is pressed in COOL mode the fan speed and the set temperature are automati cally adjusted Operation becomes POWERFU...

Страница 19: ...e ON timer press 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 TI...

Страница 20: ...rvicing 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 MODE with a set temperature of 24 C The fan speed shifts to Medium The coil frost prevention works even in the test run or the emergency operation In the test run or the emergency operation the horizontal vane oper ates in VANE AUTO mode Em...

Страница 21: ...omponents 4 When connecting or disconnecting the connectors hold the connector housing DO NOT pull the lead wires Lead wiring Connector housing Incorrect Correct 3 Troubleshooting procedure 1 Check if the OPERATION INDICATOR lamp on the indoor unit is blinking ON and OFF to indicate an abnormality To make sure check how many times the OPERATION INDICATOR lamp is blinking ON and OFF before starting...

Страница 22: ...of the operation indicator lamps will blink In this case install the horizontal vane correctly by following the procedures to NOTE Before installation of the horizontal vane turn OFF the power supply Install the horizontal vane Slide the stoppers until they click into place Vane Lock OBH779C ...

Страница 23: ...nsecutive 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 identify the abnormal point by referring to the table of outdoor unit failure mode recall function Refer to o...

Страница 24: ... to the characteristics of the indoor coil thermistor 10 7 2 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 12 seconds after the indoor fan motor is operated ...

Страница 25: ...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 Trouble of indoor unit control system Upper lamp 5 time blink Cause Outdoor unit Outdoor power sys tem abnor mal...

Страница 26: ...ction 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 manual 7 Outdoor control sys tem Upper lamp bl...

Страница 27: ...r fan motor Vane motor MV Measure the resistance between the terminals with a tester Part temperature 10 30 C Color of the lead wire Normal RED BLK 219 273 Ω BLK BLK RED BLK BLK ROTOR OPERATION INDICATOR No Abnormal point Operation indicator lamp Symptom Condition Remedy 1 Attachment of the hori zontal vane All lamps blink at the same time 0 5 second ON 0 5 second OFF Indoor unit and outdoor unit ...

Страница 28: ...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 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 stop...

Страница 29: ...tart 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 section lights up when the ...

Страница 30: ... Replace the indoor power P C board the indoor terminal 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 of the tester to fan motor connector s lead wire...

Страница 31: ...ck for incorrect indoor outdoor connecting wiring Is serial signal error indicated 6 minutes later Refer to MXY 2G20VA MXY 2G20VA2 Yes Reinstall either the unit or the light away from each other Attach a filter on remote control receiving section of the indoor unit No Turn OFF inverter controlled light ing equipment Turn OFF the power supply and then turn ON again Press EMERGENCY OPERATION switch ...

Страница 32: ...connecting wire Check for intermediate connection of the indoor outdoor connecting wire loose connection to the terminal block and cut wire inside the cable If any of them is found correct the problem s Effects of the inverter lighting on the indoor unit If the trouble occurs or does not occur depending on whether the light is on or off distance the lighting from the indoor unit or apply the glass...

Страница 33: ...or power P C board Yes Yes Confirm that the thermostat is OFF and wiring is not loose Does DC 6V or more occur between indoor terminal block S2 and S3 Yes Replace the outdoor control P C board 2 No Turn the power supply OFF Replace the indoor power P C board Start the emergency operation No Yes Repair completed Does DC 20V or more occur between indoor terminal block S2 and S3 No Yes Replace the ou...

Страница 34: ...Refer to 10 1 5 Turn ON the power supply Are all lamps blinking Yes No Turn OFF the power supply To check the continuity of the interlock switch Fan measure the resistance of connector connected to CN1R1 on the indoor electronic control P C board Is there resistance 0 Ω Yes No Replace the interlock switch Fan Replace the indoor electronic control P C board OK Turn OFF the power supply OBH779C ...

Страница 35: ...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 36: ...r to Indoor fan motor CN211 Resistor R111 Connector to Terminal block CN201 3 6 V DC 15 V DC GND High voltage DC 325 V DC 0 or 15 V DC Timer short mode point Refer to 8 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 12 V DC 5 V DC To disable Auto restart function cut the Jumper wire to JR77 Ref...

Страница 37: ... DC 0 or 15 V DC Timer short mode point Refer to 8 1 Room temperature thermistor RT11 CN111 Interlock switch FAN CN1R1 Connector to Indoor coil ther mistor RT12 RT13 CN112 Vane motor CN151 Connector to indoor power P C board CN10A 5V DC To disable Auto restart function cut the Jumper wire to JR77 Refer to 8 3 Emergency operation switch E O SW SW1 GND 2 Indoor electronic control P C board Room temp...

Страница 38: ... locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching Screws of the panel Horizontal vane Front panel 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 terminal while pushing the locking lever Hold the sleeve and pull out the terminal slow...

Страница 39: ... screw of the electrical cover and remove the electrical cover 8 Disconnect the following connectors Indoor power P C board CN211 Indoor fan motor CN201 Terminal block CN20A To the indoor electronic control P C board 9 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 electro...

Страница 40: ...l Refer to section 1 and the corner box 2 Remove the V A clamp and then the indoor outdoor connecting wire Photo 2 3 Remove the electrical cover Photo 2 4 Disconnect the following connectors on the electronic control P C board CN151 Vane motor CN1R1 Interlock switch 5 Remove the control P C board holder Photo 4 6 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 7 Rem...

Страница 41: ...d 9 Disconnect the lead wire of the fan motor from the motor band 10 Disengage the hooks of the motor band and remove the motor band Pull out the indoor fan motor 11 Remove the indoor coil thermistor from the heat exchanger Install the indoor coil thermistor in its former position when assembling it 12 Remove the screws fixing the left side of the heat exchanger 13 Lift the heat exchanger and pull...

Страница 42: ...crew 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 42 11 2 MSXY FN20VE MSXY FN24VE NOTE Turn OFF the power supply before disassembly Photo 1 Screws of the panel Front panel OBH779C ...

Страница 43: ...rical cover and remove the electrical cover 10 Disconnect the CN211 Indoor fan motor from the indoor power P C board 11 Remove the upper catch of the electrical box and pull out the electrical box 12 Disconnect the following connectors Indoor power P C board CN201 Terminal block CN20A To the indoor electronic control P C board To attach the electrical box pass the wires connecting the indoor power...

Страница 44: ... 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 nozzle assembly 1 Remove the panel Refer to section 1 and the right corner box 2 Remove the indoor outdoor connecting wire Refer to section 2 3 Remove the indoor electronic control P C board holder...

Страница 45: ...2 Remove the control P C board holder water cover and the electrical box Refer to section 2 3 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 4 Remove the screws of the vane motor and remove the vane motor 5 Disconnect the connector from the vane motor 45 Photo 6 Screws of the vane motor OBH779C ...

Страница 46: ... motor band and remove 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 sc...

Страница 47: ...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 48: ...REVISED EDITION C Issued May 2018 No OBH779 REVISED EDITION B Issued Sep 2017 No OBH779 REVISED EDITION A Published Jul 2017 No OBH779 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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