Mitsubishi Electric MSH15NN Manual de servicio

SERVICE MANUALSPLIT-TYPE, HEAT PUMP AIR CONDITIONERSCONTENTS1. FEATURES·························································32. TECHNICAL CHANGE··

10DATA5MODEL Refrigerant piping length (one way) MSH09NWMSH12NNMSH15NNMSH17NN1.01.01.01.025ft (std)0.9540.9540.9540.95440ft0.9270.9270.9270.92749ftMod

112. PERFORMANCE CURVENOTE : A point on the curve shows the reference point.MSH09NWMUH09NW716763716763657075757065Total power consumption (kW) Total c

12NOTE : A point on the curve shows the reference point.MSH12NNMUH12NN7167637167631614101221Indoor intake air DB temperature (¡F)Indoor intake air DB

13NOTE : A point on the curve shows the reference point.MSH15NNMUH15NN716763716763657075757065Indoor intake air WB temperature (¡F)Cooling capacitySHF

14NOTE : A point on the curve shows the reference point.MSH17NNMUH17NN716763716763657075757065Indoor intake air WB temperature (¡F)Indoor intake air W

15Data is bassed on the condition of indoor humidity 50%.Air flow should be set at Hi.A point on the curve shows the reference point. 3. Condensing pr

16Data is bassed on the condition of indoor humidity 50%.Air flow should be set at Hi.A point on the curve shows the reference point.MSH12NN(Cooling)D

17Data is bassed on the condition of indoor humidity 50%.Air flow should be set at Hi.A point on the curve shows the reference point.MSH15NN(Cooling)D

18Data is bassed on the condition of indoor humidity 50%.Air flow should be set at Hi.A point on the curve shows the reference point.MSH17NN(Cooling)D

19MSH09NWINDOOR UNITOUTDOOR UNIT115V 60Hz, 1[Field installed115V 60Hz, 1[SIGNAL WIRE2 wire 12V DCCapacitySHFInputIndoor unitPower supply (V, phase, Hz

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20Cooling12,600/12,9000.711.28/1.31 1.233/1.2635.61/5.1124682167114511568067575638895–CapacitySHFInputIndoor unitPower supply (V, phase, Hz)InputFan c

21CapacitySHFInputIndoor unitPower supply (V, phase, Hz)InputFan currentAux. heater currentOutdoor unitPower supply (V, phase, Hz)InputComp. currentF

225. OPERATING RANGE(1) POWER SUPPLYMUH09NWMUH12NNMUH15NNMUH17NNIndoor unitOutdoor unitRating115V 60Hz 1[208/230V 60Hz 1[Guaranteed VoltageMin. 103V

236MSH09NWMUH09NWINDOOR UNITOUTDOOR UNIT30-13/1632-1/1610-13/162-3/82-3/166-5/1611/1624-5/85-1/83-5/168-7/88-7/85-1/41-5/87-3/83-5/1612-11/1612-3/83-1

24MSH12NN, MSH15NN, MSH17NNMUH12NN, MUH15NNINDOOR UNITOUTDOOR UNIT2-3/81-9/165-15/167/16 ✕ 13/1625-1/28-9/1611-3/1610-13/1611-11/1613/161/817-11/1617-

25Terminal block for indoor and outdoor unit connectionTerminal block for power lineGroundterminalHandie for movingService panelRefrigerant pipe(Flare

267MSH09NWMUH09NWMODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITTAB12POWERSUPPLY115V1 phase60HzGROUNDCN201CN104RT11RT12CN112111CN121CN

27MSH12NN, MSH15NN, MSH17NNMODEL WIRING DIAGRAMMUH12NN, MUH15NN, MUH17NNMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITBRNGRN/YLWDSARTAB12POWERSUPPLY115V1

28REFRIGERNT SYSTEM DIAGRAM8Unit:inchMSH09NWINDOOR UNITOUTDOOR UNIT(with heat insulator)(with heat insulator)Refrigerant pipe [3/8(Option)Reversingva

29IndoorheatexchangerOutdoorheatexchangerIndoor coilthermistorRT12Room temperaturethermistorRT11Refrigerant pipe [5/8(Option)(with heat insulator)Flar

31FEATURESModels Cooling capacity Heating Capacity SEER HSPFMSH09NW 8,800Btu/h 10,500Btu/h 10.0 6.8MSH12NN 12,900Btu/h 13,500Btu/h 10.2 6.8MSH15NN 14,

309MICROPROCESSOR CONTROLOperation IndicatorWireless remote controllerINDOOR UNIT DISPLAY SECTIONOnce the controls are set, the same operation mode ca

31❈1 After the system restarts by the remote controller, the system operates with the previous set temperature regardless ofthe initial set temperatur

32NOTE : Coil frost prevention during COOL mode of “I FEEL CONTROL”There are two types of controls in coil frost prevention.① Temperature control<M

33— HEAT mode of “I FEEL CONTROL” —1. Indoor fan speed control(1) Followings are the fan speed in AUTO.Set temperature minus room temperature: 4 degre

34NOTE: When the outdoor fan is OFF in heating, the defrosting of outdoor heat exchanger is not detected by the defrost ther-mistor RT61.3. Defrosting

35NOTE ● When the indoor coil thermistor reads above 64˚F, indoor fan operates at VLo for 30 seconds.● When the indoor coil thermistor reads 64˚F or l

369-2. COOL OPERATION(1) Press OPERATE/STOP button.OPERATION INDICATOR of the indoor unit turns on with a beep tone.(2) Select COOL mode.(3) Set the T

379-6. AUTO VANE OPERATION(1) Vane motor driveMSH-N series is equipped with a stepping motor for the vane. The rotating direction, speed, and angle of

38(3) PositioningThe vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle.The positioning

399-7. TIMER OPERATION1. How to set the timer.(1) Press OPERATE/STOP button to start the air conditioner.(2) Check that the current time is set correc

42PART NAMES AND FUNCTIONS3MSH09NW, MSH12NN, MSH15NN, MSH17NNREMOTE CONTROLLERTECHNICAL CHANGESMSH09EW ➔ MSH09NW1. Indoor unit has changed. (Outline d

40Emergency operationswitchEmergency operationswitchMSH09NWMSH12NNMSH15NNMSH17NN9-8. EMERGENCY-TEST OPERATIONWhen the remote controller is missing, ha

4110MSH09NW, MSH12NN, MSH15NN, MSH17NN3. AUTO RESTART FUNCTIONWhen the indoor unit is operated with the remote controller, the signals of the operatio

42The P.C.board has the print “J1” and “J2”. Jumper wires are mounted to each “J1” and “J2”. Cut “J1” and “J2” according tothe number of indoor unit a

4311TROUBLESHOOTING11-1 Cautions on troubleshooting11-1-1 Before troubleshooting, check the followings:1) Check the power supply voltage.2) Check the

4411-2 Instruction of troubleshootingIndoor unit oper-ates. Outdoor unitdoesn’t operate.Outdoor unitoperates inonly TestRun opera-tion.Outdoor unitdoe

4511-2-1 troubleshooting check table❈ Before taking measures, make sure that the symptom reappears, for accurate troubleshooting.Self check tableNO.12

46Measure the resistance between the terminals with a tester.(Coil wiring temperature14°F ~ 104°F)Measure the resistance between the terminals with a

47Check of indoor fan motorAInodoor fan does not operate.Turn OFF power supply.Check connector (Fan motor) visually.Repair indoor fan motor.Disconnect

48YesYesYesNoYesYesYesNoNoCheck of receiver P.C. boardBIndoor unit operates by pressing the emergency ON/OFF switch, but does not operate with the rem

49Check of indoor electronic control P.C. boardCThe unit doesn’t operate with theremote controller.Also, the OPERATION INDICATORlamp doesn’t light up

5INDOOR UNITMSH09NWOUTDOOR UNITMUH12NNMUH15NNMUH09NW(When the front panel is opened)MSH09NWMSH09NWMSH12NN, MSH15NN,MSH17NNMSH12NN, MSH15NN,MSH17NNMSH1

50How to check mis-wiring and serial signal error (when outdoor unit does not work)ETurn off power supply. (indoor/outdoor units)Turn on power supply.

51TEST POINT DIAGRAM AND VOLTAGEMSH09NW Indoor electronic control P.C. boardCN201 No.1Varistor(NR11)Fuse AC250V 3.0ARoom temperature thermistor (RT11)

52TEST POINT DIAGRAM AND VOLTAGEMSH12NN, MSH15NN, MSH17NNIndoor electronic control P.C. boardFuse AC250V 3.0APower supply input AC115V+--}DC5VIndoor c

53MUH09NWMUH12NNMUH15NNMUH17NN˚F-4 14 32 50 68 86 104}Defrostthermistor(RT61)}}}}}}}+--R601DC5~10VDEICER P.C. BOARDFuse2A/250VDefrost i

54RELAY OPERATIONMSH09NWMSH12NNMSH15NNMSH17NNMODETHERMOSTAT52C CONTACTORINDOOR FAN RELAYCOOL &COOL modeof I FEELCONTROLDRY &DRY modeof I FEELC

55DISASSEMBLY INSTRUCTIONS12OPERATING PROCEDURE PHOTOS1. Removing the front panel(1) Remove the screws caps of the front panel.Remove the screws.(2) P

56OPERATING PROCEDURE PHOTOS3. Removing the electrical box(1) Remove the front panel. (Refer to 1)(2) Remove the electrical cover.(3) Remove the elect

57OPERATING PROCEDURE PHOTOS1. Removing the front panel(1) Remove the screws caps of the front panel.Remove the screws.(2) Pull the panel down to your

58OPERATING PROCEDURE PHOTOS3. Removing the indoor fan motor and the line flow fan(1) Remove the front panel.(Refer to 1)(2) Remove the electrical cov

59OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove screws securing the top panel.(2) Remove the screw securing the service panel.(3) Remove

64Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚

60OPERATING PROCEDURE PHOTOS3. Removing the compressor(1) Remove the lead clamps.(2) Remove the screws securing the relay panel.(3) Remove the screw s

61OPERATING PROCEDUREPHOTOS1. Removing the cabinet(1) Remove the screws of the cabinet.(2) Hold the bottom of the cabinet on the both side to removeth

62PHOTOS3. Removing the outdoor fan motor(1) Remove the cabinet. (Refer to 1)(2) Disconnect the connector and remove the clamp of fanmotor lead wire.(

63OPERATING PROCEDURE PHOTOS1. Removing the cabinet and electrical parts(1) Remove the top panel (3 screws in front, 2 screws in rear)(2) Remove the c

64OPERATING PROCEDURE PHOTOS3. Removing the heat exchanger and compressor(1) Remove the rear panel (2 screws in front, 1 screw on the side, 3 screws i

65PARTS LIST13INDOOR UNITSTRUCTURAL PARTSMSH09NW (WH)123456FRONT PANEL(WH)GRILL(WH)AIR FILTERBOX(WH)INSTALLATION PLATESCREW CAP(WH)Symbolin WiringDiag

66INDOOR UNITELECTRICAL PARTSMSH09NW(WH)E02 199 520E02 166 040E02 141 702E02 151 303E02 268 300E02 151 505E02 151 302E02 151 509E02 151 308E02 151 307

67OUTDOOR UNITSTRUCTURAL PARTSMUH09NWE02 096 232E02 085 297E02 199 521E02 085 245E02 289 630E02 289 900E02 047 506E02 289 290E02 096 662E02 096 661E02

68OUTDOOR UNITFUNCTIONAL PARTS AND ELECTRICAL PARTSMUH09NWE02 085 501E02 289 301E02 289 353E02 289 374E02 289 310E02 289 451E02 289 4901234567PROPELLE

69INDOOR UNITSTRUCTURAL PARTSMSH12NN (WH)MSH15NN (WH)MSH17NN (WH)1234567FRONT PANEL(WH)FRONT PANEL(WH)FRONT PANEL(WH)GRILLE(WH)BOX(WH)AIR FILTERINSTAL

7ITEM MODELS MSH12NN MSH15NNCapacityPowerconsumptionEER [SEER]HSPFCOPINDOOR UNIT MODELExternal finishPower supplyMax. fuse size (time delay)Min.

70INDOOR UNITELECTRICAL PARTSMSH12NN (WH)MSH15NN (WH)MSH17NN (WH)E02 138 520E02 143 040E02 141 702E02 270 300E02 272 300E02 001 505E02 268 452E02 282

12958614171941021151631812771E02 141 232E02 141 521E02 270 245E02 139 630E02 283 630E02 139 515E02 271 900E02 282 900E02 156 290E02 270 301E02 141 501

7213 8 11 4213146791017192015165OUTDOOR UNITSTRUCTURAL PARTSMUH17NN18 21OB198--3.qxp 24/6/97 6:30 AM Page 72

73OUTDOOR UNITSTRUCTURAL PARTSMUH17NNE02 214 232E02 214 297E02 214 521E02 214 245E02 284 630E02 272 900E02 075 506E02 284 290E02 284 662E02 010 661E02

742. AIR CLEANING FILTER● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity.● Normal life of AIR CLEANING F

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Issued in Jul. 1997. No.OB198 5042New publication, effective Jul. 1997Specifications subject to change without notice.CCCopyright 1997 MITSUBISHI ELEC

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

8ITEM MODELS MSH17NNCapacityPowerconsumptionEER [SEER]HSPFCOPINDOOR UNIT MODEL External finishPower supplyMax. fuse size (time delay)Min. ampacit

9MAX. HEIGHT DIFFERENCEModelMSH09NWMSH12NNMSH15NNMSH17NNAdditional pipingMax. length : ftA49Gas[ 3/8[ 5/8Piping size O.D. : in. Length of connecting