Mitsubishi Electronics MSZ-FA25VA manual

SER VICE MANUAL CONTENTS 1. TECHNICAL CHANGES ····································2 2. P ART NAMES AND FUNCTIONS ······················3 3. SPECIFICA TION·················································5 4. NOISE CRITERIA CUR VES ······[...]

2 1 TECHNICAL CHANGES MSZ-A09YV - ➔ MSZ-F A25V A - MSZ-A12YV - ➔ MSZ-F A35V A - E1 E1 E1 E1 12. PLASMA DEODORIZING/AIR PURIFYING filter units have been added. 13. i-see Sensor has been added. (i-see control operation and AREA setting have been added.) 14. Air cleaning filer has been removed. 15. Signal of remote controller has been changed. (It[...]

3 P ART NAMES AND FUNCTIONS 2 INDOOR UNIT MSZ-F A25V A - MSZ-F A35V A - E1 E1 Line flow fan Air outlet Vertical vane Air inlet Display section Front panel PLASMA DEODORIZING filter Panel Heat exchanger Horizontal vane Operation section (When the front panel is opened) Remote controller POWER lamp Remote control receiving section PLASMA AIR PURIFYIN[...]

4 ACCESSORIES 1 2 3 4 5 6 7 Installation plate Installation plate fixing screw 4 o 25 mm Remote controller holder Fixing screw for 3 3.5 o 1.6 mm (Black) Battery (AAA) for remote controller Wireless remote controller Felt tape (Used for left or left-rear piping) MSZ-FA25VA - E1 MSZ-FA35VA - E1 1 5 1 2 2 1 1 ON-TIMER button CLOCK SET button TIME SET[...]

5 SPECIFICA TION 3 T3.15AL250V NSEJ001DA1 12V DC 100 " (at 25˚C) MP20Z 12V DC 300 " (at 25˚C) MSBPC20M16 12V DC 250 " (at 25˚C) MSBPC20M1 1 12V DC 300 " (at 25˚C) ERZV14D471 A2TPMI334F0V50HSOBA060P5L1J4S 5V DC 3P INDOOR UNIT Item Model Fuse Front panel driving motor i-see Sensor motor Horizontal vane motor V ertical vane mot[...]

6 4 NOISE CRITERIA CUR VES 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 APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE COOLING FUNCTION 42 42 SPL(dB(A)) LINE Super High F AN SPEED HEA TING T est conditi[...]

7 OUTLINES AND DIMENSIONS 5 MSZ-F A25V A - E1 Unit : mm INDOOR UNIT 780 155 155 335 320 41.5 215 42.5 214 3 287.5 70 55 55 55 225 225 298 90 106 or more 7 100 198 5 53.5 102 624.5 19 159 58 234 14 273.5 Air in Air out Wall hole [ 65 Indoor unit Installation plate Installation plate 11 o 20 Oblong hole 11 o 26 Oblong hole 10 or more 75 or more 55 or[...]

8 6 WIRING DIAGRAM REFRIGERANT SYSTEM DIAGRAM 7 MSZ-F A25V A - E1 Indoor heat e xchanger Flared connection Room temperature thermistor R T11 Indoor coil thermistor R T13(sub) Flared connection Refrigerant flow in cooling Refrigerant flow in heating Refrigerant pipe [ 9.52 (with heat insulator) Refrigerant pipe [ 6.35 (with heat insulator) Indoor co[...]

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[...]

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 AR T/ST OP timer is active, the timer setting is cancelled. • If the unit has been off with the remote controller before power failur[...]

2 1 Stopper Lock. Left Insert this end first. 11 TROUBLESHOOTING 9 3. T roubleshooting procedure 1) First, check if the OPERA TION INDICA TOR lamp on the indoor unit is flashing on and of f 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 servi[...]

12 If PLASMA/W ASH lamp on the indoor unit blinks, clean the filters as soon as possible. The lamp will start blinking when accumulated operating time exceeds 330 hours. <Remove> (1) Switch the indoor unit OFF with the remote controller and disconnect the power supply plug and/ or turn OFF the breaker . NOTE : Otherwise, you may get injured s[...]

13 INFORMA TION 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. •Unit won’t operate in case the total capacity of indoor units exceeds the capacity of outdoor units. Do not connect indoor units beyond the outdoor unit capacity . Operation indica[...]

14 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 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 . 9-2. F[...]

15 2. Flow chart of PLASMA DEODORIZING/PLASMA AIR PURIFYING power failure mode recall function Operational procedure Note1. 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 memorize[...]

16 4. Indoor unit failure mode table NOTE: Blinking patterns of this mode differs from the ones of Troubleshooting check table(9-4.). 5. PLASMA DEODORIZING/PLASMA AIR PURIFYING power failure mode table 12-time flash 2.5-second OFF Replace the indoor electronic control P.C. board. Indoor control system When it cannot properly read data in the nonvol[...]

17 Start Indoor unit operates. Outdoor unit doesn't operate. Indoor unit doesn't receive the signal from remote controller . OPERA TION INDICA T OR lamp on the indoor unit is flashing on and off. OPERA TION INDICA T OR lamp on the indoor unit stays off. Outdoor unit operates in only T est Run operation. w Outdoor unit doesn't operate[...]

18 NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P .C. board turns OFF the indoor fan motor with OPERA TION INDICA TOR lamp flashing. No. 1 3 5 6 Symptom Operation indicator lamp Detection method Check point POWER l[...]

19 Lighted Blinking Not lighted Lighted Blinking Not lighted Lighted Blinking Not lighted · Flashing of AREA lamp(left-hand side lamp) indicates abnormality . NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P .C. boa[...]

20 9-5. T rouble criterion of main parts MSZ-F A25V A - MSZ-F A35V A - E1 E1 Part name Figure Check method and criterion Measure the resistance with a tester . (Part temperature 10˚C ~ 30˚C) Normal 8 k " ~ 20 k " Abnormal Open or short-circuit Room temperature thermistor(RT1 1) Indoor coil thermistor (RT12(MAIN), R T13(SUB)) Horizontal [...]

21 Check of indoor fan motor A When POWER lamp flashes 3-time. Indoor fan does not operate. w If 12 seconds or more passes after EMERGENCY OPERATION switch is pressed, the voltage mentioned above 2 goes 0V DC although the indoor electric control P.C. board is normal. Indoor electronic control P.C. board Pay careful attention to the high voltage on [...]

22 Check of remote controller and receiver 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 . Y es Replace the batteries. (Refer to 9-1.4.) T urn on a radio to AM and press switch on the remote controll[...]

23 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 electronic control 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[...]

24 How to check mis-wiring and serial signal error D When POWER lamp flashes ON and OFF in every 0.5-second. Outdoor unit does not operate. Is there rated voltage of 230V AC in the power supply? In 3 minutes after turning ON the power supply of the outdoor unit, does the LED on the inverter P.C. board repeat quick blinking "3.6-second-OFF and [...]

25 Check of installation of the horizontal vane E Start 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? Y es No Is there resistance 0 " ? Relock the stopper of the horizontal vane to the indoor unit. Refer to 9-1.5. Y es Are all lam[...]

26 Check of PLASMA DEODORIZING power F When PLASMA/W ASH lamp flashes 2-time. w w The power failure mode for PLASMA DEODORIZING power is memorized when the failure mode is called. After performing the check, make sure to release the failure mode recall function. Make sure that the front panel is firmly closed. 1 During pressing both OPERA TION SELE[...]

27 Check of PLASMA AIR PURIFYING power G When PLASMA/W ASH lamp flashes 2-time. w w The power failure mode for PLASMA AIR PURIFYING power is memorized when the failure mode is called. PLASMA AIR PURIFYING operation Make sure that the front panel is firmly closed. 1 During pressing both OPERA TION SELECT button and TOO COOL button on the remote cont[...]

28 Check of auto front panel H Is the connector of the front panel driving motor unit or the indoor electric control P .C. board unplugged? Front panel is normal. Replace the front panel driving motor unit. Does the front panel automatically open? (Does it start to move?) Y es Is the front panel held 10mm or more upper than the level line of the no[...]

29 Electromagnetic noise enters into TV sets or radios I Replace the antennas. Replace the coaxial cable. No No No Yes Yes No No Yes Yes Yes Is the distance between the antennas and the indoor unit within 3m, or is the distance between the antennas and the outdoor unit within 3m? Is the distance between the TV sets or radios and the indoor unit wit[...]

30 Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT1 1) T emperature ( : ) Resistance (k " ) MSZ-F A25V A - MSZ-F A35V A - Indoor electronic control P .C. board E1 E1 Release of Auto restart function Solder the Jumper wire to JR07. (Refer to 8-3.) 12V DC V aristor (NR1 1) 5V DC Room temperature thermistor (CN1 1[...]

31 DISASSEMBL Y 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. 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[...]

32 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 horizontal vane, the panel (Refer to 1.) and the corner box. (2) Remove the screw of the V .A. clamp, and then the indoor/outdoor connecting wire.(See Photo 3.) (3) Remove the switch holder f[...]

33 OPERA TING PROCEDURE PHOTOS Photo 8 Photo 10 Screws of the left side of the heat exchanger 5. Removing the vertical vane motor unit (1) Remove the horizontal vane, the panel (Refer to 1.) and the corner box. (2) Pull out the drain hose from the nozzle assembly , and remove the nozzle assembly . (See Photo 5.) (3) Remove the crank of the vertical[...]

34 OPERA TING PROCEDURE PHOTOS Photo 13 Photo 1 1 Photo 12 Front panel driving motor Screw of the plasma element holder 7. Removing the plasma power P .C. board (1) Remove the horizontal vane, the panel (Refer to 1.) and the corner box. (2) Remove the switch holder and the electrical cover . (Refer to 3.) (3) Disconnect the connector of the front p[...]

35 P ARTS LIST 1 1 MSZ-F A25V A - (WH) MSZ-F A35V A - (WH) 1 1-1. INDOOR UNIT STRUCTURAL P ARTS E1 E1 No. Part No. Part name Remarks Symbol in Wiring Diagram Q'ty/unit 1 2 3 4 5 6 7 8 MSZ-FA25VA - E1 MSZ-FA35VA - E1 9 10 REMOTE CONTROLLER REMOTE CONTROLLER HOLDER KM05A BOX P ANEL ASSEMBL Y (WH) SCREW CAP FRONT P ANEL (WH) AIR FIL TER (LEFT) AI[...]

36 1 1-3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-F A25V A - (WH) MSZ-F A35V A - (WH) E1 E1 4 2 5 3 9 SLEEVE BEARING ROOM TEMPERA TURE THERMISTOR FUSE V ARISTOR NR1 1 1 6 33 1 1-4. INDOOR UNIT HEA T EXCHANGER 10 8 7 18 1 1 12 13 POWER MONITOR RECEIVER P .C. BOARD POWER MONITOR RECEIVER P .C. BOARD HOLDER i-see Sensor i-see Sensor MO[...]

37 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y V ANE MOT OR UNIT (HORIZONT AL) INTERLOCK SWITCH(F AN) V ANE MOT OR UNIT (VERTICAL) HORIZONT AL V ANE FUSE V ARIST OR POWER MONITOR RECEIVER P .C. BOARD HOLDER i-see Sensor i-see Sensor MOTOR V A CLAMP TERMINAL BLOCK COVER TERMINAL BLOCK HOLDER TERMINAL BLOCK ELECTRONIC CONTROL P .C. BOARD[...]

38 12 OPTIONAL P ARTS DEODORIZING CERAMIC FIL TER Replacement of the deodorizing ceramic filter(about once every 6 years) Deodorizing ceramic filter is installed inside PLASMA DEODORIZING filter unit. The filter is fragile. Handle it with care. NOTE : PLASMA DEODORIZING filter unit may not operate properly if the deodorizing ceramic filter is not i[...]

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HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, T OKYO100-8310, JAP AN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD Distributed in Jan. 2005. No. OB371 6 Made in Japan New publication, effective Jan. 2005 Specifications subject to change without notice. OB371_--2qxp 05.1.17 12:49 Page 40[...]