Mitsubishi Electric MR-385CL Manual de servicio

SERVICE MANUALSPLIT-TYPE AIR CONDITIONERSCONTENTS1. FEATURES ············································OB274-22. TECHNICAL CHANGES ·················

OB274-10DATA5ModelIndoor air Outdoor intake air DB temperature (˚F)716763716763716763TC15.114.313.417.516.615.619.518.417.3SHC8.710.111.39.110.812.210

OB274-115-2. PERFORMANCE CURVENOTE : A point on the curve shows the reference point.Curves in graph of MS(MU)12/15/17TN shows curves under 230V AC.As

OB274-125-3. Condensing pressureData is based on the condition of indoor humidity 50%.Air flow should be set at High.A point on the curve shows the re

OB274-13300320(PSIG)28026024022020018016068 70 75 80 85 90 95 100 104( F)Condensing pressureOutdoor ambient temperatureIndoor DB temperatureIndoor DB

OB274-14✻ Control voltagePower supply voltage to serial signal circuit is 12V DC. Voltage between 1+ and 2-- on in-out terminal block will be 12V DC

OB274-155-5. OPERATING RANGE(1) POWER SUPPLYModelMS09TWMS12TNMS15TNMS17TNMU09TWMU12TNMU15TNMU17TNIndoor unitOutdoor unitRating115V 60Hz 1[208/230V 60H

OUTLINES AND DIMENSIONSOB274-166MS09TWMU09TW MU12TNINDOOR UNITOUTDOOR UNIT6-3/83/42-5/164-5/83-1/42-5/83-1/1632-3/1633-1/26-1/224-3/42-1/41/4 or more

OB274-17MS12TN MS15TN MS17TNMU15TN MU17TNINDOOR UNITOUTDOOR UNIT6-3/83/42-5/161/8 11-11/1617-11/1617-11/1613-7/817-1/41010-13/1613/162-3/81-9/165-7

OB274-187MS09TWMU09TWMODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITVLT2 -1 +TBNL1BLKYLWREDPOWERFROM OUTDOORUNITCONNECTINGWIRESTO OUTD

OB274-19MS12TN MS15TN MS17TNMODELS WIRING DIAGRAMMU12TNMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITMFORNBLKREDC11NR11ELECTRONIC CONTROL P.C. BOARD732

FEATURESOB274-21MS12TN MS15TN MS17TN MS09TWMU09TWMU12TN MU15TN MU17TNLCD wirelessremote controllerModels Cooling capacity SEERMS09TW 8,500Btu/h 10.2M

OB274-20MU15TN MU17TNMODELS WIRING DIAGRAMOUTDOOR UNITGROUNDGRN/YLWFROM INDOOR UNITCONNECTING WIRES115V1 Phase 60HzTB2TB1FROM INDOOR UNITCONNECTING

OB274-21REFRIGERANT SYSTEM DIAGRAM8Indoor heatexchangerIndoor heatexchangerRefrigerant pipe 3/8(option)(with heat insulator)Refrigerant pipe

OB274-22Indoor heatexchangerRefrigerant pipe 5/8(option)(with heat insulator)Refrigerant pipe 1/4(option)(with heat insulator)Stop valvewith s

ON/OFFFANTOOWARMTOOCOOLVANEMODE STOP STARTHR.MIN.I FEELCOOLDRY PMCLOCKAMRESETCLOCKFANOPERATION SELECT buttonFAN SPEED CONTROL buttonOFF-TIME

OB274-24(4) The initial set temperature is decided by the initial room temperature.w 1COOL mode of“I FEEL CONTROL”DRY mode of“I FEEL CONTROL”ModeIniti

OB274-25(5) TEMPERATURE buttonsIn “I FEEL CONTROL” mode, set temperature is decided by the microprocessor based on the room temperature.In addition, s

OB274-26Operation time chartExampleThermostatIndoor fanOutdoor fan CompressorON8 min.1 min.4 min.3 min.ONOFFOFFOFFOFFOFFONONONONONONOFFOFFOFF3. Coil f

OB274-279-3. DRY OPERATION(1) Press OPERATE/STOP(ON/OFF) button.OPERATION INDICATOR lamp of the indoor unit turns onwith a beep tone.(2) Select DRY mo

OB274-281In COOL and DRY operation2In FAN operationVane angle is fixed to Angle 1.Vane angle is fixed to Angle 4.(3) PositioningThe vane is once press

OB274-299-7. TIMER OPERATION1. How to set the timer.(1) Press OPERATE/STOP(ON/OFF) button to start the air conditioner.(2) Check that the current time

OB274-3TECHNICAL CHANGES2MS09NW2 ➔ MS09TW1. Indoor unit has changed2. Remote controller has changed.MS12NN2 ➔ MS12TN1. Remote controller has changed.2

OB274-30Press once <Cool>Press once again <Stop>• The following indication applies regardless of shape of the indicator.EMERGENCY OPERAT

OB274-3110SERVICE FUNCTIONS10-1. TIMER SHORT MODEFor service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. bo

OB274-32How to release “AUTO RESTART FUNCTION”1Turn off the main power for the unit.2 Pull out the indoor electronic control P.C. board and the displa

OB274-33TROUBLESHOOTING11MS09TW MS12TN MS15TN MS17TN MU09TW MU12TN MU15TN MU17TNLead wiringHousing point11-1. Cautions on troubleshooting1. Bef

OB274-3411-2. Instruction of troubleshootingIndoor unit oper-ates. Outdoor unitdoesn’t operate.Outdoor unitoperates inonly TestRun mode.Outdoor unitdo

OB274-35Measure the resistance between the terminals with a tester.(Part temperature14°F ~ 104°F)Measure the resistance between the terminals with a t

OB274-36Check of indoor fan motorAIndoor fan does not operate.Turn OFF the power supply.Check connector (Fan motor) visually.Repair or replace the ind

OB274-37Ye sYe sYe sNoYe sYe sYe sNoNoCheck of remote controller and receiver P.C. boardBIndoor unit operates by pressing the EMERGENCY OPERATION swit

OB274-38Check of indoor electronic control P.C. boardCCheck of outdoor unitDCompressor and / or outdoor fan doesn’t operate.(Only indoor fan operates.

OB274-39TEST POINT DIAGRAM AND VOLTAGEMS09TWIndoor electronic control P.C. boardVaristor(NR11)Fuse 250V AC 3ARoom temperature thermistor (RT11)Indoor

PART NAMES AND FUNCTIONSOB274-43INDOOR UNITMS09TWOperation sectionEmergency operation switchHorizontal vaneAir filterDeodorizing filter(option)(gray s

OB274-40TEST POINT DIAGRAM AND VOLTAGEMS12TN MS15TN MS17TNIndoor electronic control P.C. boardFuse 250V AC 3.0APower supply input 115V AC+--}5V DCIn

OB274-41MODETHERMOSTAT52C CONTACTORINDOOR FAN SPEEDCOOL & COOL modeof I FEEL CONTROLDRY & DRY modeof I FEEL CONTROLFANONOFFONOFFOFFONOFFOFFOFF

DISASSEMBLY INSTRUCTIONSOB274-4212OPERATING PROCEDURE PHOTOSPhoto 1Photo 2ScrewsFront panel12-1. MS09TWINDOOR UNIT(1) Slide the sleeve and check if t

OB274-43OPERATING PROCEDURE PHOTOSPhoto 5Screws ofthe vanemotorVane motorConduit coverScrews of theconduit platePhoto 3Photo 43. Removing the electric

OB274-44OPERATING PROCEDURE PHOTOSPhoto 6Photo 7Screws of the fan motorIndoor coilthermistorScrews fix-ing the leftside of theheatexchanger5. Removing

OB274-45OPERATING PROCEDURE PHOTOS12-2. MS12TN MS15TN MS17TNINDOOR UNITPhoto 1Front panelScrews1. Removing the front panel(1) Remove the screw caps

OB274-46OPERATING PROCEDURE PHOTOSPhoto 4Photo 5Heat exchangerscrewCatchScrews of thebearing supportHeat exchangerIndoor fan motorLine flow fanScrews

OB274-4712-3. MU09TW MU12TNOUTDOOR UNITOPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the screws of the top panel.(2) Remove the screws

OB274-48OPERATING PROCEDURE PHOTOSPhoto 6CompressorTerminal cover3. Removing the propeller fan and the outdoor fanmotor(1) Remove the cabinet. (Refer

OB274-49OPERATING PROCEDUREPHOTOS1. Removing the cabinet(1) Remove the screws of the cabinet.(2) Hold the bottom of the cabinet on the both side to re

OB274-5Air inlet (back and side)Air outletAir inletPipingDrain hoseAir outletDrain outlet(back and side)OUTDOOR UNITMU15TNMU17TNMU09TW MU12TN

OB274-50PHOTOS3. Removing the outdoor fan motor(1) Remove the cabinet. (Refer to 1)(2) Disconnect the connector and remove the hooked lead wirefrom fa

OB274-51PARTS LIST13No.Parts No. Parts NameSymbol in Wiring DiagramMS09TW(W)RemarksQ'ty / set123456789INSTALLATION PLATEBOX(W)CORNER BOX LEFT (W)

OB274-52No.Parts No. Parts NameSymbol in Wiring DiagramMS09TW(W)RemarksQ'ty / set123456789101112131415161718LINE FLOW FANBEARING MOUNTSLEEVE BEAR

OB274-53MU09TW MU12TN13-5. OUTDOOR UNIT STRUCTURAL PARTS,FUNCTIONAL PARTS AND ELECTRICAL PARTSNo.Parts No. Parts NameSymbol in Wiring DiagramMU09TWRe

OB274-54MS12TN (W)MS15TN (W)MS17TN (W)13-6. INDOOR UNIT STRUCTURAL PARTSNo.Parts No. Parts NameSymbol in Wiring DiagramRemarksQ'ty / set1234567IN

OB274-55No.Parts No. Parts NameSymbol in Wiring DiagramRemarksQ'ty / set12345678910111213141516171819202122LINE FLOW FANSLEEVE BEARINGBEARING MOU

OB274-56No.Parts No. Parts NameSymbol in Wiring DiagramRemarksQ'ty / set1234567891011121314151617181920BACK PANELCABINETGRILLEPROPELLER FANMOTOR

OB274-57OPTIONAL PARTS14Pipe lengthCross-sectionPart No.ModelA-Gas(in.)B-Liquid(in.)Pipe sizeInsulation(in.)AdditionalrefrigerantchargeR22(oz.)Outside

New publication, effective May 2001.Specifications subject to change without notice.CCopyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD.Distribute

3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications ar

OB274-6MS09TWMS12TNMS15TNMS17TNREMOTE CONTROLLERON/OFFTOOCOOL PMAMTOOWARMON/OFFFANTOOWARMTOOCOOLVANEMODE STOP STARTHR.MIN.I FEELCOOLDRY

OB274-74Notes : Test conditions are based on ARI 210/240❈1 : Rating conditions (cooling) — Indoor : 80-FDB, 67-FWB, Outdoor : 95-FDB, (75-FWB)❈2 : Rat

OB274-8Item ModelCooling capacity Power consumption EER [SEER]INDOOR UNIT MODELExternal finishPower supplyMax. fuse size (time delay)/Disconnect s

OB274-9w Height difference should be within 25ft regardless of which unit, indoor or outdoor position is high.w Max. Height difference 25ftAdditional