Mitsubishi MS-18RV Wartungshandbuch

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS······················23. SPECIFICATION···

10Previous operationCOOL mode of “I FEEL CONTROL”or COOL mode• Once the mode is fixed, the mode does not change by room temperature afterwards.•

112. The operation of the compressor and indoor/ outdoor fanCompressor operates by room temperature control and time control.Set temperature is contro

128-2. COOL ( ) OPERATION(1) Press OPERATE/STOP (ON/OFF) button.OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.(2) Select COOL

13HighRotational frequencyHightimeMed.Low8-5. INDOOR FAN MOTOR CONTROL(1) Rotational frequency feedback controlThe indoor fan motor is equipped with a

14(9) LONG MODE ( )By pressing the LONG button indoor fan speed becomes faster than setting fan speed on the remote controller, and thehorizontal vane

15612345SWING2. Vertical vane(1) Vane motor driveThese models are equipped with a stepping motor for the vertical vane. The rotating direction, speed,

16EMERGENCY OPERATION switchPress once <Cool>Press again <Stop>OPERATION INDICATOR lamp• The following indication applies regard

17SERVICE FUNCTIONS99-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATIONA maximum of 4 indoor units with wireless remote controllers can be used in a

18How to release “AUTO RESTART FUNCTION”1Turn off the main power for the unit.2Pull out the electronic control P.C. board, the receiver P.C.board and

19TROUBLESHOOTING1010-1. Cautions on troubleshooting1. Before troubleshooting, check the following:(1) Check the power supply voltage.(2) Check the in

TECHNICAL CHANGES21PART NAMES AND FUNCTIONS2INDOOR UNITGrille(When the grille is opened)Remote controllerOperation sectionDisplay sectionOperation Ind

20StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.Indoor unit operates

211. Troubleshooting check table• The following indication applies regardless of shape of the indicator.Operation IndicatorflashingBefore taking measu

22MS-A18WV -MS-A24WV -MS-A30WV -E1E1E1Part nameFigureCheck method and criterionIndoor fan motor(MF)MS-A18/A24WVINNER FUSE145: CUT OFFMS-A30WVINNER PRO

23YesYesCheck of indoor fan motorACheck of remote controller and receiver P.C. boardBWhen OPERATION INDICATOR lamp flashes 3-time.Indoor fan motor doe

24Check of indoor electronic control P.C. boardCCheck the both “parts side” and “pattern side” of indoor electronic control P.C. board visually.Replac

25How to check mis-wiringD1. Turn OFF the power supply (indoor/ outdoor unit) and disconnect indoor and outdoor connecting wire at the terminal bl

26TEST POINT DIAGRAM AND VOLTAGEMS-A18WV - MS-A24WV - MS-A30WV -Indoor electronic control P.C. boardE1E1E1Fan motor power supplyFuse (F11) 250V AC

27DISASSEMBLY INSTRUCTIONS11MS-A18WV - MS-A24WV - MS-A30WV -INDOOR UNITE1E1E1(1) Slide the sleeve and check if there is a locking lever or not. (2

28OPERATING PROCEDUREPHOTOSPhoto 4Photo 6Vane motorsIndoorcoilthermistorPhoto 33. Removing the electrical box(1) Remove the front panel. (Refer to 1.)

29PARTS LIST12MS-A18WV - (WH)MS-A24WV - (WH)MS-A30WV - (WH)12-1. INDOOR UNIT STRUCTURAL PARTSE1E1E1MS-A18 WV - (WH) E1MS-A24

REMOTE CONTROLLERMS-A18WV -MS-A24WV -MS-A30WV -E1E1E13ON/OFFTOOCOOL PMAMTOOWARMON/OFFFANTOOWARMTOOCOOLVANEMODEECONO COOL STOP STARTHR.MIN.W

30E02 527 302E02 408 509E02 001 504E02 408 702E02 527 235E02 527 040E02 527 041E02 127 382E02 817 385E02 527 034E02 817 300E02

31OPTIONAL PARTS13Air cleanig filter (White bellows type)AIR CLEANING FILTER● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means o

New publication, effective Dec. 2003Specifications subject to change without notice.CCCopyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistribute

SPECIFICATION43Indoor modelFunctionPower supplyAir flow(High/Med. /Low ) Power outletRunning currentPower inputAuxiliary heaterPower factorFan motor

5NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BARBAND CENTER FREQUEN

OUTLINES AND DIMENSIONS651621958477.5315255.5472.598 17398 173414.5 414.552252537915610681100325Air outAir inInsulation [ 28Drain hose [ 16(Connected

MODELS WIRING DIAGRAMMODEL WIRING DIAGRAM7WIRING DIAGRAM6MS-A18WV -MS-A24WV -E1E1INDOOR UNIT12VBLKGRYYLWBRNWHTRED3SR141431CN121C11HIC1TRANSMV121CN11

REFRIGERANT SYSTEM DIAGRAM87MS-A30WV -E1INDOOR UNITIndoorheatexchangerFlared connectionRoom temperaturethermistorRT11Indoor coil thermistorRT13(sub)F

9MICROPROCESSOR CONTROL8WIRELESS REMOTE CONTROLLERModeCOOL mode of"I FEEL CONTROL" DRY mode of"I FEEL CONTROL"Initial room tempe