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Mitsubishi MSZ-CB25VA manual

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Table of contents for the manual

  • Page 1

    CONTENTS 1. TECHNICAL CHANGES ····································2 2. P ART NAMES AND FUNCTIONS ······················3 3. SPECIFICA TION ·················································5 4. NOISE CRITERIA CURVES ··············[...]

  • Page 2

    2 1 TECHNICAL CHANGES MSZ-GA22V A- ➔ MSZ-CB22V A- MSZ-GA25V A- ➔ MSZ-CB25V A- MSZ-GA35V A- ➔ MSZ-CB35V A- E1 E1 E1 E1 E1 E1 1. Color of BOX and CORNER BOX has been changed to white. Revision:A • model has been added. •9-2. Failure mode recall function has been changed. •RoHS P ARTS LIST has been added. E2 MSZ-CB22V A- ➔ MSZ-CB22V A- M[...]

  • Page 3

    3 P ART NAMES AND FUNCTIONS 2 MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A Line flow fan Air outlet Vertical vane Air inlet Display section Front panel Panel Heat exchanger Horizontal vane Operation section (When the front panel is opened) Remote controller Remote control receiving section Catechin air filter Air cleaning filter (Optional parts,Anti- Allerg[...]

  • Page 4

    4 ACCESSORIES REMOTE CONTROLLER 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) 1 5 1 2 2 1 1 MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A ON-TIMER button CLO[...]

  • Page 5

    5 SPECIFICA TION 3 T3.15AL 250V MSBPC20M16 12V DC 250 " (at 25 ˚ C) ERZV14D471 3P INDOOR UNIT Fuse Horizontal vane motor V aristor T erminal block (F1 1) (MV) (NR1 1) (TB) 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[...]

  • Page 6

    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 T est conditions Cooling : Dry-bulb temperature 27 : Wet-bulb temperature 19 : APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE COOL[...]

  • Page 7

    7 OUTLINES AND DIMENSIONS 5 MSZ-CB25V A Unit : mm 155 155 335 320 41.5 215 42.5 214 3 287.5 70 55 55 55 225 225 or more 7 100 90 106 298 102 624.5 780 210 5 53.5 19 159 58 14 273.5 234 Air in Air out Wall hole [ 65 Indoor unit Installation plate Installation plate 11X20 Oblong hole 11X26 Oblong hole 10 or more 75 or more 66 or more W 75 or more W I[...]

  • Page 8

    8 6 WIRING DIAGRAM REFRIGERANT SYSTEM DIAGRAM 7 MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A Indoor heat e xchanger Flared connection Room temperature thermistor RT 1 1 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 i[...]

  • 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[...]

  • Page 10

    10 TROUBLESHOOTING 9 9-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 2. T ake care of the following during servicing 1) Before servicing the air conditioner , be sure to turn OFF the main unit first with the remote control[...]

  • Page 11

    11 2 1 Stopper Lock. Left Insert this end first. 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 th[...]

  • Page 12

    12 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 (9-4.) 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 .[...]

  • Page 13

    13 2. Indoor unit failure mode table NOTE : Blinking patterns of this mode differ from the ones of T roubleshooting check table(9-4.). 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 nonvolatile memory of the indoor electronic control P.C. board. 11-time f[...]

  • Page 14

    14 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 [...]

  • Page 15

    15 No. 1 3 6 7 Symptom Operation indicator lamp Condition Correspondence Left lamp flashes. 0.5-second ON 0.5-second OFF Mis-Wiring or serial signal Outdoor power system Outdoor thermistors Outdoor control system Indoor coil thermistor When the serial signal from the outdoor unit is not received for a maximum of 6 minutes. When it consecutively occ[...]

  • Page 16

    16 OPERA TION INDICA TOR Not lighted Blinking Lighted OPERA TION INDICA TOR Not lighted Blinking Lighted No. 1 Symptom Operation indicator lamp Condition Correspondence Abnormal point 0.5-second ON 0.5-second OFF When the electricity is not conducted to the interlock switch (Fan) of the horizontal vane. • Refer to 9-6. E "Check of installati[...]

  • Page 17

    17 Check of indoor fan motor A When OPERA TION INDICA TOR lamp flashes 3-time. Indoor fan does not operate. w If more than 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 attenti[...]

  • Page 18

    18 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 . Ye s Replace the batteries. (Refer to 9-1.4.) Is noise heard from radio? Are there any fluorescent lights of[...]

  • Page 19

    19 The unit does not operate with the remote controller . Also, OPERA TION INDICA TOR 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[...]

  • Page 20

    20 How to check mis-wiring and serial signal error D Is there rated voltage in the power supply? Is there any mis-wiring, poor contact, or wire disconnection of the indoor/outdoor connecting wire? W 1. Mis-wiring may damage indoor electronic control P.C. board during the operation. Be sure to confirm the wiring is correct before the operation start[...]

  • Page 21

    21 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 9-1.5. Ye s Are all lamps fla[...]

  • Page 22

    22 Electromagnetic noise enters into TV sets or radios F 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 3m, or is the distance between the antennas and the outdoor unit within 3m? Is the distance between the TV sets or radios and [...]

  • Page 23

    23 Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT1 1) T emperature ( : ) Resistance (k " ) MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A Indoor electronic control P .C. board Release of Auto restart function Solder the Jumper wire to JR07 (Refer to 8-3.) 230V AC Fuse(F1 1) Indoor coil thermistor RT12(MAIN) 12 RT13(SUB) [...]

  • Page 24

    24 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[...]

  • Page 25

    25 2. Removing the electronic control P .C. board, the power monitor receiver P .C. board, 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 V .A. clamp, and then the indoor/outdoor connecting wire. (See Photo 2.) (3) Remove the switch holder from the electrical[...]

  • Page 26

    26 OPERA TING PROCEDURE PHOTOS Photo 6 Photo 8 Screws of the left side of the heat exchanger 4. Removing the horizontal vane motor unit (1) Remove the horizontal vane and the panel. (Refer to 1.) (2) Remove the screws of the horizontal vane motor unit, and pull out the horizontal vane motor unit. (See Photo 5.) (3) Disconnect the connector from the[...]

  • Page 27

    27 P ARTS LIST (non-RoHS compliant) 11 MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A 1 1-1. INDOOR UNIT STRUCTURAL P ARTS No. Part No. Part name Remarks Symbol in Wiring Diagram Q'ty/unit 1 2 3 4 5 6 7 8 9 MSZ-CB22VA - E1 MSZ-CB35VA - E1 10 11 REMOTE CONTROLLER REMOTE CONTROLLER HOLDER KM05B BOX P ANEL ASSEMBL Y SCREW CAP FRONT P ANEL CA TECHIN AIR FIL [...]

  • Page 28

    28 1 1-3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A 4 2 5 3 9 1 6 22 1 1-4. INDOOR UNIT HEA T EXCHANGER 10 8 7 12 13 14 15 16 21 24 23 11 15 15 19 17 18 20 P ARTS LIST (non-RoHS compliant) OB441--1.qxp 06.12.25 2:49 PM Page 28[...]

  • Page 29

    29 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y V ANE MOTOR UNIT (HORIZONT AL) INTERLOCK SWITCH(F AN) HORIZONT AL V ANE FUSE V ARISTOR POWER MONITOR RECEIVER P .C. BOARD HOLDER V .A. CLAMP TERMINAL BLOCK COVER TERMINAL BLOCK HOLDER TERMINAL BLOCK ELECTRONIC CONTROL P .C. BOARD W 1 ELECTRONIC CONTROL P .C. BOARD W 1 ELECTRONIC CONTROL P [...]

  • Page 30

    30 OB441--1.qxp 06.12.25 2:49 PM Page 30[...]

  • Page 31

    31 RoHS P ARTS LIST (RoHS compliant) 12 MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A 12-1. INDOOR UNIT STRUCTURAL P ARTS No. Part No. Part name Remarks Symbol in Wiring Diagram Q'ty/unit 1 2 3 4 5 6 7 8 9 G G G G G G G G G MSZ-CB22VA - MSZ-CB35VA - 10 11 G G REMOTE CONTROLLER REMOTE CONTROLLER HOLDER KM05B BOX P ANEL ASSEMBL Y SCREW CAP FRONT P ANEL CA[...]

  • Page 32

    32 12-3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A 4 2 5 3 9 1 6 22 12-4. INDOOR UNIT HEA T EXCHANGER 10 8 7 12 13 14 15 16 21 24 23 11 15 15 19 17 18 20 RoHS P ARTS LIST (RoHS compliant) OB441--2.qxp 06.12.25 2:51 PM Page 32[...]

  • Page 33

    33 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y V ANE MOTOR UNIT (HORIZONT AL) INTERLOCK SWITCH(F AN) HORIZONT AL V ANE FUSE V ARISTOR POWER MONITOR RECEIVER P .C. BOARD HOLDER V .A. CLAMP TERMINAL BLOCK COVER TERMINAL BLOCK HOLDER TERMINAL BLOCK ELECTRONIC CONTROL P .C. BOARD W 1 ELECTRONIC CONTROL P .C. BOARD W 1 ELECTRONIC CONTROL P [...]

  • Page 34

    MAC-093SS-E Model Part No. MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A 13-2. QUICK CLEAN KIT ● Y ou can sweep the surface of heat exchanger if you install the special-made brush to your vacuum cleaner . Heat exchanger 34 13 OPTIONAL P ARTS Model Part No. MAC-415FT -E MSZ-CB22V A MSZ-CB25V A MSZ-CB35V A Air cleaning filter (Blue bellows type) (1) Remove t[...]

  • Page 35

    35 OB441--2.qxp 06.12.25 2:51 PM Page 35[...]

  • Page 36

    HEAD OFFICE: TOKYO BLDG, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAP AN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD Distributed in Jan. 2007. No. OB441 REVISED EDITION-A 6 Distributed in Dec. 2005. No. OB441 6 Made in Japan New publication, effective Jan. 2007 Specifications subject to change without notice. OB441--2.qxp 06.1[...]