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Инструкция обслуживания Mitsubishi Electronics MSZ-FD25VAS

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  • Mitsubishi Electronics MSZ-FD25VAS - page 1

    CONTENTS 1. TECHNICAL CHANGES ····································3 2. P ART NAMES AND FUNCTIONS ······················4 3. SPECIFICA TION ·················································5 4. NOISE CRITERIA CUR VES ·············? ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 2

    2 OBH488-1.qxp 07.8.9 11:47 AM Page 2 ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 3

    3 1 TECHNICAL CHANGES MSZ-FD25V A - MSZ-FD25V AS - MSZ-FD35V A - MSZ-FD35V AS - E1 E1 E1 E1 1. New model OBH488-1.qxp 07.8.21 9:41 AM Page 3 ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 4

    4 2 P ART NAMES AND FUNCTIONS MSZ-FD25V A MSZ-FD25V AS MSZ-FD35V A MSZ-FD35V AS Air outlet Vertical vane Air filter Front panel Horizontal vane Remote controller AREA lamp indicate 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 temperatur ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 5

    5 SPECIFICA TION 3 Specifications and rating conditions of main electric parts NOTE : T est conditions are based on ISO 5151 Cooling : Indoor Dry-bulb temperature 27 : Wet-bulb temperature 19 : Outdoor Dry-bulb temperature 35 : Heating : Indoor Dry-bulb temperature 20 : Outdoor Dry-bulb temperature 7 : Wet-bulb temperature 6 : Refrigerant piping le ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 6

    6 4 NOISE CRITERIA CUR VES MSZ-FD25V A MSZ-FD25V AS INDOOR UNIT WA LL MICROPHONE 0.8 m 1 m 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 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz COOLING FUNCTION SPL(dB(A)) LINE Super High F AN SPEED HEA TING T est cond ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 7

    225 225 64 64 155 155 345 54 330 69 42 21 1.5 3 253 231.5 41 212.5 254 43 69 7 43 85 97 295 21.5 56 55 55 688 100 785 798 6.5 47 Wall hole [ 65 11 X 26 Oblong hole 11 X 20 Oblong hole Indoor unit Installation plate 5 257 Installation plate Piping Drain hose Air in Air out 19 159 58 Piping Insulation [ 35 O.D Liquid line [ 6.35 - 0.5 m (Flared conne ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 8

    8 7 REFRIGERANT SYSTEM DIAGRAM MSZ-FD25V A MSZ-FD25V AS MSZ-FD35V A MSZ-FD35V AS Indoor heat exchanger Flared connection Room temperature thermistor RT1 1 Flared connection Refrigerant pipe [ 9.52 (with heat insulator) Refrigerant pipe [ 6.35 (with heat insulator) Indoor coil thermistor RT12 (main) Indoor coil thermistor RT13 (sub) Refrigerant flow ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 9

    9 SER VICE FUNCTIONS 8 8-2. P .C. BOARD MODIFICA TION FOR INDIVIDUAL OPERA TION A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller , P .C. boards of remote controller must be modified according to the number of the indoor unit. 8-1. TIM ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 10

    10 NOTE : • The operation settings are memorized when 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 AUT O ST ART/STOP timer is active, the timer setting is can- celled. • If the unit has been OFF with the remote controller before power failu ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 11

    11 MICROPROCESSOR CONTROL 9 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. WIRELESS REMOTE CONTROLLER The lamps at the center of the indoor unit indicates the operation state. INDOOR UNIT LAMP Operation state Lamp Refer to 9-7. Lamp lig ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 12

    12 1. Coil frost prevention Coil frost prevention is as same as COOL mode. (9-1.1.) 2. Low outside temperature operation Low outside temperature operation is as same as COOL mode. (9-1.2.) 1. Cold air prevention control When the compressor is not operating or is starting, and the temperature of indoor heat exchanger and/or the room tem- perature is ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 13

    NOTE 2 FOR MUL TI 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 two or more indoor units with one outdoor unit simultaneously , one for the cooling and the others for heating, the operation mode of the indoor unit that operates ea ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 14

    14 To change the air flow direction When to use this function? Use this function if you don ’ t want the air from the indoor unit to blow directly onto your body. • Depending on the shape of the room, the air may blow directly onto your body. • Press VANE CONTROL button again to return the v ane to the previously- set position. Pressing and h ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 15

    15 9-6. i-see CONTROL OPERA TION The sensors constantly measure the room and floor/wall temperatures to automatically adjust to the set temperature by esti- mating the temperature actually perceived by a person inside the room ( “ sensory temperature ” ). Advantages · The air inside the room is conditioned quickly to a comfortable condition. ? ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 16

    16 ● Indoor unit installation location and air-conditioning area · Be sure to set the slide switch inside the remote controller to an appropriate position in accordance with the installed position of the indoor unit. If the switch is not set correctly, the air conditioner may not function properly. (Refer to "Remote controller in SERVICE FU ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 17

    Operation and operating range i-see sensor moves 30 degrees from the center in both right and left side. i-see Sensor operates as follows in accordance with AREA setting made with the remote controller . “ AUTO ” in AREA setting; first turning to the LEFT for adjusting the position then..... CENTER RIGHT CENTER LEFT CENTER...... (The sensor tur ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 18

    18 9-10. TIMER OPERA TION 1. How to set the time (1) Check that the current time is set correctly . NOTE : T imer operation will not work without setting the current time. Initially “ 0:00 ” blinks at the current time display of TIME MONITOR, so set the current time correctly with CLOCK SET button. How to set the current time (a) Press the CLOC ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 19

    19 EMERGENCY OPERA TION switch (E.O.SW) Not lighted Lighted The operation mode is indicated by the AREA lamp as following AREA lamp EMERGENCY HEAT EMERGENCY COOL STOP Operation mode COOL HEA T Set temperature 24 : 24 : F an speed Med. Med. Horizontal vane Auto A uto V er tical vane Straight Straight NOTE: This is the indication of EMERGENCY OPERATI ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 20

    20 10 TROUBLESHOOTING 3. T roubleshooting procedure 1) First, check if the OPERA TION INDICA TOR lamp on the indoor unit is flashing on and off to indicate an abnormality . T o make sure, check how many times the abnormality indication is flashing on and off before starting service work. 2) Before servicing, check that the connector and terminal ar ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 21

    21 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (10-4.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be repaired for the abnormality which doesn't recur ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 22

    22 2. Flow chart of PLASMA operation failure mode recall function Operational procedure NOTE 1. Make sure to release the failure mode recall function once it's set up, otherwise the unit cannot operate properly. 2. If the abnormal condition is not deleted from the memory, the last abnormal condition is kept memorized. W 2.Blinking pattern when ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 23

    23 4. Indoor unit failure mode table NOTE : Blinking patterns of this mode dif fer from the ones of TROUBLESHOOTING CHECK T ABLE (10-4.). 12-time flash 2.5-second OFF Replace the indoor electronic control P.C. board. Indoor control system It cannot properly read data in the nonvolatile memory of the indoor electronic control P.C. board. 11-time fla ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 24

    24 Start Indoor unit operates. Outdoor unit doesn't operate. Indoor unit doesn't receive the signal from remote controller . OPERA TION INDICA TOR lamp on the indoor unit is flashing on and off. Outdoor unit operates only in T est Run operation. w Outdoor unit doesn't operate even in T est Run operation. w Indoor unit operates, when ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 25

    25 No. 1 2 5 6 Symptom Operation indicator lamp Condition Correspondence POWER lamp flashes. 0.5-second ON 0.5-second OFF Miswiring or serial signal Outdoor power system Outdoor thermistors Outdoor control system Indoor coil thermistor The serial signal from the outdoor unit is not received for 6 minutes. It consecutively occurs 3 times that the co ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 26

    26 AREA R POWER CLEAN PLASMA L AREA R POWER CLEAN PLASMA L No. 1 Symptom Operation indicator lamp Condition Correspondence Abnormal point 0.5-second ON 0.5-second OFF The electricity is not conducted to the interlock switch (Fan) of the horizontal vane. • Refer to 10-6. E "Check of installation of the horizontal vane". Indoor unit and o ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 27

    27 10-5. TROUBLE CRITERION OF MAIN P ARTS MSZ-FD25V A MSZ-FD25V AS MSZ-FD35V A MSZ-FD35V AS Part name Figure Check method and criterion Measure the resistance with a tester . Refer to 10-7. "T est point diagram and voltage", "Indoor electronic control P .C. board", the chart of thermistor . Room temperature thermistor(RT1 1) Ind ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 28

    28 10-6. TROUBLESHOOTING FLOW Check of indoor fan motor A POWER lamp flashes 3-time. Indoor fan does not operate. w If more than 12 seconds passes after EMERGENCY OPERATION switch is pressed, the voltage mentioned above 2 goes 0 VDC although the indoor electric control P.C. board is normal. Indoor electronic control P.C. board Pay careful attention ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 29

    29 Check of remote controller and indoor electronic control P .C. board B Indoor unit operates by pressing EMERGENCY OPERA TION switch, but does not operate with the remote controller . w Check if the remote controller is exclusive for this air conditioner . Ye s Replace the batteries. (Refer to 10-1.4.) Is noise heard from radio? Are there any flu ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 30

    30 The unit does not operate with the remote controller . Also, POWER lamp does not light up by pressing EMERGENCY OPERA TION switch. Check of indoor P .C. board and indoor fan motor C Yes No w 1. The fan motor connector's 1 lead wire is red, whereas 3 is black. w 2. Connect "+" of the tester to fan motor connector's 1 lead wire ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 31

    31 How to check miswiring and serial signal error D • Unit cannot operate neither by the remote controller nor by EMERGENCY OPERA TION switch. Indoor unit does not operate. • POWER lamp flashes ON and OFF every 0.5-seconds. Outdoor unit does not operate. Is there rated voltage in the power supply? Is there any miswiring, poor contact, or wire d ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 32

    32 Check of installation of the horizontal vane E Replace the indoor electronic control P .C. board. Replace the interlock switch(Fan). Is the stopper of the horizontal vane locked to the indoor unit correctly? Ye s No Is there resistance 0 " ? Relock the stopper of the horizontal vane to the indoor unit. (Refer to 10-1.5.) Ye s Are all lamps ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 33

    33 Electromagnetic noise enters into TV sets or radios G Replace or repair the antenna. Replace or repair the coaxial cable. No No No Yes Yes No No Yes Yes Yes Is the distance between the antennas and the indoor unit within 3 m, or is the distance between the antennas and the outdoor unit within 3 m? Is the distance between the TV sets or radios an ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 34

    34 MSZ-FD25V A MSZ-FD25V AS MSZ-FD35V A MSZ-FD35V AS 1. Indoor electronic control P .C. board. 10-7. TEST POINT DIAGRAM AND VOL T AGE Room temperature thermistor (RT1 1) Indoor coil thermistor (RT12, RT13) T emperature ( : ) Resistance (k " ) Release of Auto restart function Solder the Jumper wire to JR07 (Refer to 8-3.) 12 VDC V aristor (NR1 ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 35

    2. Power monitor receiver P .C. board 35 3 DC 2.5 V during PLASMA DEODORIZING operation 1 DC 12.5 V during PLASMA DEODORIZING operation 2 GND CN1 4. Plasma power P .C. board 3. Monitor P .C. board OBH488-2.qxp 07.8.9 11:49 AM Page 35 ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 36

    36 11 DISASSEMBL Y INSTRUCTIONS (1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the locking mechanism. 1 Slide the sleeve. 2 Pull the terminal while pushing the locking lever . 1 Hold the sleeve, and pull out the terminal slowly . The terminal which has the locking mechanism can be detache ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 37

    37 OPERA TING PROCEDURE PHOTOS Photo 3 2. Removing the electronic control P .C. board, the power monitor receiver P .C. board, i-see Sensor , SW P .C. board and the terminal block (1) Remove the panel (Refer to 1.) and the corner box. (2) Remove the screw of the V .A. clamp. Remove the V .A. clamp and then the indoor/outdoor connecting wire. (See P ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 38

    38 OPERA TING PROCEDURE PHOTOS 3. Removing the electrical box (1) Remove the panel (Refer to 1.) and the corner box. (2) Remove the indoor/outdoor connecting wire, the sensor holder , the electrical cover and the earth wire. (Refer to 2.) (3) Disconnect the following connectors on the electronic con- trol P .C. board; fan motor <CN21 1>, indo ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 39

    39 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. (4) Remove the screws of the horizontal vane motor unit cover . (5) Remove the horizontal vane motor from the horizontal vane motor unit. (3) Disconnect the conn ...

  • Mitsubishi Electronics MSZ-FD25VAS - page 40

    HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAP AN C C Copyright 2007 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD Distributed in Aug. 2007. No. OBH488 6 Made in Japan New publication, ef fective Aug. 2007 Specifications subject to change without notice. OBH488-2.qxp 07.8.9 11:49 AM Page 40 ...

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