Mitsubishi Electric MSZ-FE18NA Скачать руководство пользователя страница 20 | Manualshive

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20

8-11. Changing temperature indication (°F/°C)

8-10. 3-MINUTE TIME DELAY OPERATION

When the system turns OFF, compressor will not restart for 3 minutes as 3-minute time delay function operates to protect
compressor from overload.

The preset unit is °F.

°F

→

°C: Press RESET button while the

temperature buttons are pressed.

°C

→

°F: Press RESET button or remove

the batteries .

•

•

•

Press RESET button gently using

a thin instrument.

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Содержание MSZ-FE18NA

Страница 1: ...1 9 TROUBLESHOOTING 21 10 DISASSEMBLY INSTRUCTIONS 35 MSZ FE09NA MSZ FE12NA MSZ FE18NA SPLIT TYPE AIR CONDITIONERS INDOOR UNIT Outdoor unit service manual MUZ FE NA Series OBH543 MXZ A NA Series OB444 MXZ B NA Series OB560 NOTE RoHS compliant products have G mark on the spec name plate PARTS CATALOG OBB542 Models No OBH542 REVISED EDITION A Revision A MSZ FE18NA has been added Please void OBH542 M...

Страница 2: ...2 1 TECHNICAL CHANGES MSZ FE09NA MSZ FE12NA MSZ FE18NA 1 New model Revision A MSZ FE18NA has been added ...

Страница 3: ...p POWER lamp Fan Remote controller Display section AREA lamp indicates AREA setting In AREA setting the horizontal air flow direction changes automatically according to the detection of i see Sensor which detects the floor wall temperature to air condition the room evenly i see control operation i see Sensor constantly measure floor wall temperature to automatically adjust to the set temperature b...

Страница 4: ...t Horizontal vane Heat exchanger MSZ FE18NA ACCESSORIES Models MSZ FE09 12NA MSZ FE18NA Installation plate 1 1 Installation plate fixing screw 4 25 mm 5 7 Remote controller holder 1 1 Fixing screw for 3 5 1 6 mm Black 2 2 Battery AAA for remote controller 2 2 Wireless remote controller 1 1 Felt tape Used for left or left rear piping 1 1 Air cleaning filter 2 ...

Страница 5: ...OUTLET AIR SPEED AND COVERAGE The air coverage is the figure up 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 position The coverage should be used only as a general guideline since it varies according to the size of the room and furniture arranged inside the room 2 OPERATION Mode Condition Intake air temperature F Indoor O...

Страница 6: ...n ø3 8 Insulation ø1 1 8 O D Connected part ø5 8 O D Air in Piping Insulation Liquid line Gas line Drain hose MSZ FE18NA 42 7 8 3 16 43 5 16 1 3 4 9 3 8 10 3 16 1 8 11 8 7 8 8 7 8 5 1 16 9 7 16 11 1 16 1 3 4 1 15 16 19 3 4 17 5 16 7 27 32 7 27 32 4 3 8 2 9 16 2 1 2 3 33 1 8 7 1 8 2 9 16 2 9 16 1 3 16 2 1 2 2 9 16 2 5 8 2 1 2 12 13 16 1 8 3 15 16 4 7 8 6 5 16 4 5 16 70 9 3 8 3 16 8 1 4 27 32 7 1 4 ...

Страница 7: ...7 5 WIRING DIAGRAM MSZ FE09NA MSZ FE12NA MSZ FE18NA ...

Страница 8: ...with heat insulator Refrigerant pipe 1 4 with heat insulator Indoor coil thermistor RT12 main Indoor coil thermistor RT13 sub MSZ FE18NA Indoor heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø5 8 with heat insulator Refrigerant pipe ø3 8 with heat insulator Indoor coil thermistor RT12 main Indoor coil thermistor RT13 sub Refrigerant flow in coo...

Страница 9: ...able 1 After modification press the RESET button NOTE For modification take out the batteries and press the OPERATE STOP ON OFF but ton twice or 3 times at first After finish modification put back the bat teries then press the RESET button J2 J1 MSZ FE09NA MSZ FE12NA MSZ FE18NA Table 1 1 unit operation 2 units operation 3 units operation 4 units operation No 1 unit No modification Same as at left ...

Страница 10: ... mode just before the shutoff of the main power Operation If the main power has been cut the operation settings remain After the power is restored the unit restarts automatically according to the memory However it takes at least 3 minutes for the compressor to start running How to release AUTO RESTART FUNCTION Turn off the main power of the unit Solder the Jumper wire JR07 on the indoor electronic...

Страница 11: ...L WIRELESS REMOTE CONTROLLER MSZ FE09NA MSZ FE12NA MSZ FE18NA NOTE Last setting will be stored after the unit is turned OFF with the remote controller Indoor unit receives the signal of the remote controller with beeps MSZ FE09NA MSZ FE12NA MSZ FE18NA Signal transmitting section Operation display section ON OFF operate stop button FAN SPEED CONTROL button OPERATION SELECT button POWERFUL button In...

Страница 12: ...lamp MSZ FE09 12NA OPERATION INDICATOR lamp MSZ FE18NA 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 is as same as COOL mode 8 1 1 2 Low outside temperature operation Low outside temperature operation is as same as COOL mode 8 1 2 Operati...

Страница 13: ...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 2 F 1 C below the set temperature HEAT mode changes to COOL mode when about 15 min...

Страница 14: ... 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 ON TIMER standby In the following cases the horizontal vane returns to the closed position a When OPERATE STOP ON OFF 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 MSZ FE0...

Страница 15: ...el this operation select a different mode or press POWERFUL or ECONO COOL MSZ FE18NA button 2 Vertical vane 1 Vane motor drive These models are equipped with a stepping motor for the vertical vane The rotating direction speed and angle of the motor are controlled by pulse signals approx 12 V transmitted from microprocessor 2 The vertical vane angle and mode change as follows by pressing WIDE VANE ...

Страница 16: ...the indoor unit is moved with the stepping motor and it detects the floor wall temperature i see Sensor is installed here Enlarged view of i see Sensor i see Sensor When AREA setting is not activated the sensing range of i see Sensor differs depending on the installation location of the air conditioner Refer to Remote controller in SERVICE FUNCTIONS Install the front panel correctly after being re...

Страница 17: ...the remote controller The horizontal air flow direction is controlled in this range Installed at center Installed at left Installed at right Indoor unit display AREA Remote controller display or or Lighted Not lighted L R L R L R L R L R Ex In COOL mode Moving of horizontal air flow direction Indoor unit display NOTE Indication of AREA setting Lighted Not lighted The horizontal air flow direction ...

Страница 18: ...ation will not work without setting the current time Initially 0 00 AM blinks at the current time dis play of TIME MONITOR so set the current time correctly with CLOCK SET button How to set the current time a Press the CLOCK set button b Press the TIME SET buttons and to set the current time Each time FORWARD button is pressed the set time increases by 1 minute and each time BACKWARD button is pre...

Страница 19: ...is the test run operation This operation is for servicing The indoor fan runs at High speed and temperature 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 Med All protective operations such as the coil frost prevention works even in the test run or the emergency operation In the ...

Страница 20: ...FF compressor will not restart for 3 minutes as 3 minute time delay function operates to protect compressor from overload The preset unit is F F C Press RESET button while the temperature buttons are pressed C F Press RESET button or remove the batteries Press RESET button gently using a thin instrument ...

Страница 21: ...d off before starting service 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 ca...

Страница 22: ... is abnormal The indoor unit is abnormal Check the blinking pattern and confirm the abnormal point with the indoor unit failure mode table Refer to 9 2 2 Make sure to check at least two 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...

Страница 23: ...istor the sub indoor coil thermistor 9 7 3 time flash 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 flash 2 5 second OFF Indoor fan motor The rotational frequency feedback signal is not emitted for 12 seconds after the indoor fan mo tor is operated Refer to 9 6 Check o...

Страница 24: ... or trouble of serial signal POWER lamp Upper lamp 2 time flash Cause Indoor unit Trouble of room tem perature indoor coil thermistor POWER lamp Upper lamp 3 time flash Cause Indoor unit Trouble of indoor fan motor POWER lamp Upper lamp 4 time flash Cause Indoor unit Trouble of indoor unit control system POWER lamp Upper lamp 5 time flash Cause Outdoor unit Outdoor power system abnormality POWER l...

Страница 25: ... nonvolatile memory of the indoor electronic control P C board Replace the indoor electronic control P C board 5 Outdoor power sys tem POWER lamp Upper lamp flashes 5 time flash 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 outd...

Страница 26: ...t of thermistor Indoor fan motor MF Check 9 6 Horizontal vane motor MV1 Vertical vane motor MV2 i see Sensor motor MT MSZ FE09 12NA Measure the resistance between the terminals with a tester Part temperature 50 86 F 10 30 C Color of the lead wire Normal Horizontal vane motor MV1 MSZ FE09 12NA BRN other one MSZ FE18NA RED BLK 313 375 Ω Vertical vane motor MV2 268 322 Ω i see Sensor motor MT MSZ FE0...

Страница 27: ...etween 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 VDC 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 VDC within 12 seconds after EMERGENCY OPERATION switch is pressed Replace the i...

Страница 28: ...door electronic control P C board Including the receiver MSZ FE09NA MSZ FE12NA MSZ FE18NA Does the unit operate with the remote controller OK Yes No Not clear Replace the batteries Refer to 9 1 4 Press OPERATE STOP ON OFF button on the remote controller Is LCD display on the remote controller visible Remove the batteries then set them back and press RESET button Refer to 9 1 4 Check if the unit op...

Страница 29: ...and fuse F11 Are the varistor NR11 burnt and the fuse F11 blown No No Yes Yes Be sure to check both the fuse and the varistor in any case Is the fuse F11 blown only Measure the resistance between and of the indoor fan motor connector 1 2 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...

Страница 30: ...9 5 Measure the resistance between CN211 and of the indoor fan motor connector Short circuit Replace the indoor fan motor Short 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 3 Are the varistor NR11 burnt ...

Страница 31: ...door connecting wire is not miswiring Short circuit outdoor terminal block S2 and S3 1 B 1 Miswiring may damage indoor electronic control P C board during the operation Be sure to confirm the wiring is correct before the opera tion starts Turn ON the power supply Does the LED on the inverter P C board or the outdoor electronic control P C board repeat 3 6 second OFF and 0 8 second ON quick blinkin...

Страница 32: ...ength or the installation condition combination of specific 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 of ...

Страница 33: ... coil thermistor RT12 RT13 CN112 Timer short mode point JPG JPS Refer to 7 1 SW P C Board i see Sensor CN110 Fuse F11 Vertical vanes CN151 CN201 Used for check of con ducting of thermal fuse 0 or 15 VDC 3 6 VDC 15 VDC Fiducial terminal of cathode side on measur ing high voltage DC 294 325 VDC Cement resistor R111 Indoor fan motor CN211 Emergency operation switch SW1 208 230 VAC Power supply input ...

Страница 34: ...tor receiver SW P C board Fuse F11 Varistor NR11 Terminal block Indoor fan motor CN211 294 325 VDC GND high voltage DC 15 VDC 3 6 VDC 0 or 15 VDC Resistor R111 Emergency operation switch E O SW SW1 Release of Auto restart function Solder the Jumper wire to JR07 Refer to 7 3 MSZ FE18NA Please replace the fuse after removing the indoor terminal P C board from the electrical box Timer short mode poin...

Страница 35: ...ushing it upward DISASSEMBLY INSTRUCTIONS 10 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 Photo 1 Screws of the panel Front panel Horizontal vane Terminal with locking mecha...

Страница 36: ...or receiver P C board holder and pull out the power monitor receiver P C board 9 Open the sensor holder and pull out the SW P C board 10 Pull the electronic control P C board slightly toward you from the electrical box and disconnect TAB3 and all the connectors on the electronic control P C board 11 Pull out the electronic control P C board from the electrical box 12 Remove the ground wire connect...

Страница 37: ...ceiver P C board holder and the holder Photo 4 6 Pull out the drain hose from the nozzle assembly and remove the nozzle assembly 5 Removing the vertical vane motor unit 1 Remove the nozzle assembly Refer to 4 2 Remove the crank of the vertical vane motor unit 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 scre...

Страница 38: ...r to 4 3 Remove the screws fixing the motor bed Photo 9 4 Loosen the screw fixing the line flow fan Photo 10 5 Remove the motor bed together with fan motor and motor band 6 Release the hooks of the motor band Remove the motor band Pull out the indoor fan motor 7 Remove the indoor coil thermistor from the heat exchanger Install the indoor coil thermistor RT12 in its former posi tion when assembling...

Страница 39: ...Photo 3 4 Remove the screw of the conduit plate the conduit plate and the indoor outdoor connecting wire 5 Remove the screw of the electrical cover and then the electrical cover 6 Remove the ground wire connected to the indoor electronic control P C board from the electrical box Photo 3 7 Remove the power monitor receiver holder 8 Open the rear cover of the power monitor receiver holder and pull o...

Страница 40: ...ox Photo 3 Photo 4 4 Removing the nozzle assembly 1 Remove the panel Refer to 1 and the corner box 2 Remove the V A clamp and then the indoor outdoor connecting wire Refer to 2 2 4 3 Remove the electrical cover Photo 2 4 Disconnect the following connectors on the electronic control P C board CN151 Horizontal vane motor CN152 Vertical vane motor 5 Remove the power monitor receiver holder Photo 2 6 ...

Страница 41: ...rtical vane motor from the vertical vane motor unit 7 Disconnect the connector of vertical vane motor from the vertical vane motor Photo 5 Photo 6 6 Removing the horizontal vane motor 1 Remove the nozzle assembly Refer to 4 2 Remove the screws of the horizontal vane motor unit and pull out the horizontal vane motor unit 3 Disconnect the connector from the horizontal vane motor 4 Remove the screws ...

Страница 42: ...or band 8 Release the hooks of the motor band Remove the motor band Pull out the indoor fan motor 9 Remove the indoor coil thermistor from the heat exchanger Install the indoor coil thermistor in its former position when assembling it Photo 9 10 Remove the screws fixing the left side of the heat exchanger 11 Lift the heat exchanger and pull out the line flow fan to the lower left Photo 8 Photo 9 P...

Страница 43: ...43 ...

Страница 44: ...U TOKYO 100 8310 JAPAN Copyright 2009 MITSUBISHI ELECTRIC CO LTD Distributed in Sep 2010 No OBH542 REVISED EDITION A 5 Distributed in Jul 2009 No OBH542 5 Made in Japan New publication effective Sep 2010 Specifications subject to change without notice ...

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