Mitsubishi-electric MSH-07NV Bedienungsanleitung

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SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································6
4. OUTLINES AND DIMENSIONS ······················ 11
5. WIRING DIAGRAM ··········································15
6. REFRIGERANT SYSTEM DIAGRAM··············24
7. PERFORMANCE CURVES······························29
8. MICROPROCESSOR CONTROL ····················33
9. SERVICE FUNCTIONS ····································44
10. TROUBLESHOOTING······································47
11. DISASSEMBLY INSTRUCTIONS·····················60
12. PARTS LIST······················································70
13. OPTIONAL PARTS ····································BACK
Wireless type
Models
MSH-07NV -
(
WH
)
· MUH-07NV -
MSH-09NV -
(
WH
)
· MUH-09NV -
MSH-12NV -
(
WH
)
· MUH-12NV -
MSH-18NV -
(
WH
)
· MUH-18NV -
MSH-24NV -
(
WH
)
· MUH-24NV -
MSH-07NV -
(
WH
)
· MUH-07NV -
MSH-09NV -
(
WH
)
· MUH-09NV -
MSH-12NV -
(
WH
)
· MUH-12NV -
MSH-18NV -
(
WH
)
· MUH-18NV -
MSH-24NV -
(
WH
)
· MUH-24NV -
MSH-18NV -
(
WH
)
· MUH-18NV -
E3E3
E2E2
E2E2
E2E2
E2E2
E2E2
E1E1
E1E1
E1E1
E1E1
E1E1
No. OB207
MSH-18NV -
MSH-18NV -
MSH-18NV -
E3
E2
E1
This Servise Manual OB207 deals with MSH-07/09/12/18/24NV-E1,
MUH-07/09/12/18/24NV-E1, MSH-18NV-E2, and MUH-18NV-E2 in
OB176 REVISED EDITION-A issued in July in1997.
Therefore, please refer to OB207, not to OB176 REVISED
EDITION-A, for the above models.
Refer to the Service Manual OB185 when MSH-07/09/12NV- , MSH-07/09/12/18NV- , and MSH-18NV-
are connected with MXZ-32NV- as multi system units.
E1
E3E2E1
OB207t-1qxp 25/9/97 8:51 PM Page 1
Seitenansicht 0
1 2 3 4 5 6 ... 79 80

Inhaltsverzeichnis

Seite 1 - SERVICE MANUAL

SERVICE MANUALSPLIT-TYPE,HEAT PUMP AIR CONDITIONERSCONTENTS1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS·····

Seite 2 - TECHNICAL CHANGES

10CapacityElectrical dataCompressorIndoorfan motorOutdoorfan motorDimensionsWeightSpecial remarksModelFunctionPower supplyCoefficient of performance(C

Seite 3 - PART NAMES AND FUNCTIONS

11OUTLINES AND DIMENSIONS4MSH-07NV - MSH-09NV - MSH-07NV - MSH-09NV -E2E2E1E1MUH-07NV - MUH-09NV - MUH-07NV - MUH-09NV -E2E2E1E1INDOOR UNITOUT

Seite 4 - REMOTE CONTROLLER

12MSH-12NV - MSH-12NV -E2E1MUH-12NV - MUH-12NV -E2E1INDOOR UNITOUTDOOR UNIT9.52If the right/left sides or back side is vacant,thefront has only to

Seite 5

OUTDOOR UNIT13MSH-18NV - MSH-24NV - MSH-18NV - MSH-24NV - MSH-18NV -E3E2E2E1E1MUH-18NV - MUH-18NV - MUH-18NV -E3E2E1INDOOR UNIT33 297297450450

Seite 6 - SPECIFICATION

14MUH-24NV- MUH-24NV- Unit : mm (inch)E2E1100 101000For 10 units or less200Outdoor Unit-Necessary surrounding clearance(Concentrated installation)The

Seite 7 - E1 E2

15WIRING DIAGRAM5NOTE:1. For the outdoor electric wiring refer to the outdoor unit electric wiring diagram for servicing.2. Use copper conductors only

Seite 8 - E1 E2

16MSH-12NV -E1MUH-12NV -E1MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNIT❈❈❈❈❈❈~/N~TO OUTDOORUNITCONNECTING12VDCL32N;FOR MULTI SYSTE

Seite 9 - E1 E2 E1 E2

17MSH-18NV -E1MUH-18NV -E1MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNIT❈❈❈❈❈❈SYMBOLTBDSARHIC1SYMBOLNR11RT11RT12IC14152CSYMBOLC11F1

Seite 10 - E1 E2 E2 E3

18MSH-24NV -E1MUH-24NV -E1MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITNFWHTBLUBLU4312111CN52CCIRCUIT BREAKERRT12IC141112CNHIC1NR1

Seite 11 - OUTLINES AND DIMENSIONS

19MSH-07NV - MSH-09NV - MSH-12NV -E2E2E2MUH-07NV - MUH-09NV -E2E2MODELS WIRING DIAGRAMMODELS WIRING DIAGRAMINDOOR UNITOUTDOOR UNITCIRCUIT BREAKER

Seite 12 - OUTDOOR UNIT

2TECHNICAL CHANGESMSH-17NV - ➔MSH-07NV -1. Indoor electronic control P.C.board has changed.However, it is compatible between and models.2. Auto r

Seite 13

20MUH-12NV -E2MODEL WIRING DIAGRAMOUTDOOR UNIT21S4SR61CN661 CN721X62MCMF52C43WHTREDBLUBLUBLKWHTORNREDBLKWHTREDTRANSRSCC1REDBLK12VDCGRN/YLWTOINDOOR UN

Seite 14 - Unit : mm (inch)

21MSH-18NV -E2MUH-18NV -E2MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNIT~/NTO OUTDOORUNITCONNECTING12VDCL32NFOR MULTI SYSTEM;SYMBOL

Seite 15 - WIRING DIAGRAM

22MSH-24NV -E2MUH-24NV -E2MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITNFWHTBLUBLU431111CN52CCIRCUIT BREAKERRT12IC141112CNHIC1NR11

Seite 16 - FOR MULTI SYSTEM

23MSH-18NV -E3MUH-18NV -E3MODEL WIRING DIAGRAMMODEL WIRING DIAGRAMINDOOR UNITOUTDOOR UNITCIRCUIT BREAKERN212VDCL50HzCORDPOWERSUPPLY~/N 220-240VF11NR

Seite 17

24REFRIGERANT SYSTEM DIAGRAM6MSH-07NV -MSH-07NV -E2E1MUH-07NV -MUH-07NV -E2E1INDOOR UNITOUTDOOR UNITIndoorheatexchangerRoom temperaturethermistorR

Seite 18 - ELECTRONIC CONTROL P.C BOARD

25Unit:mmMSH-12NV -MSH-12NV -E2E1MUH-12NV -MUH-12NV -E2E1INDOOR UNITOUTDOOR UNIT(with heat insulator)(with heat insulator)Refrigerant pipe [12.7(

Seite 19

26MSH-24NV -MSH-24NV -E2E1MUH-24NV -MUH-24NV -E2E1INDOOR UNITOUTDOOR UNITIndoorheatexchangerRoom temperaturethermistorRT11Refrigerant pipe [15.88

Seite 20 - MODEL WIRING DIAGRAM

27Models Piping size O.D : mm Length of connecting pipe : mRefrigerant pipingMax. length : m A1015Indoor unit0.43Gas9.5212.715.88Liquid6.359.52Outdoor

Seite 21

28EVACUATION PROCEDURES(AIR PURGE)Pipe length :7m maximumNo gas chargeis neededPipe lengthexceeding 7mCharge the prescribedamount of gasTighten the ca

Seite 22 - CONTROLLER

297The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions,since operating cond

Seite 23

3PART NAMES AND FUNCTIONS2INDOOR UNITMSH-07NV - MSH-07NV -MSH-09NV - MSH-09NV -MSH-12NV - MSH-12NV -E2E1E2E1E2E1OUTDOOR UNITMUH-12NV -MUH-18NV

Seite 24 - REFRIGERANT SYSTEM DIAGRAM

300.70.60.50.40.376543Outdoor low pressureAmbient temperature(˚C)Ambient humidity(%)Ambient temperature(˚C)Ambient humidity(%)MUH-07NV -E2E1MUH-07NV

Seite 25 - MSH-12NV

310.70.60.50.40.376543MUH-12NV -E2E1MUH-12NV -E2E1Outdoor low pressureAmbient temperature(˚C)Ambient humidity(%)Ambient temperature(˚C)Ambient humid

Seite 26

32HEAT operationCondition indoor:Dry bulb temperature 20.0°CWet bulb temperature 14.5°COutdoor:Dry bulb temperature 7,15,20°CWet bulb temperature 6,12

Seite 27 - MAX. HEIGHT DIFFERENCE

33MICROPROCESSOR CONTROL8Once the controls are set, the same operation mode can berepeated by simply turning the OPERATE/STOP button ON.Indoor unit re

Seite 28

34ModelCOOL mode of"I FEEL CONTROL"DRY mode of"I FEEL CONTROL"HEAT mode of"I FEEL CONTROL"Initial room temperature In

Seite 29 - PERFORMANCE CURVES

35NOTE : Coil frost prevention during COOL mode of “I FEEL CONTROL”There are two types of controls in coil frost prevention.① Temperature control<M

Seite 30 - COOL operation

36— HEAT mode of “I FEEL CONTROL” —1. Indoor fan speed control(1) Followings are the fan speed in AUTO.Set temperature minus room temperature: 2 degre

Seite 31 - (kgf/F•G)(MPa•G)

37NOTE 1 :When the outdoor fan is OFF in heating, defrosting of outdoor heat exchanger is not detected by the defrost thermis-tor RT61.NOTE 2 :When co

Seite 32 - Wet bulb temperature 14.5°C

38NOTE1 ● When the indoor coil thermistor reads above 18°C, indoor fan operates at VLo for 30 seconds.● When the indoor coil thermistor reads 18°C or

Seite 33 - MICROPROCESSOR CONTROL

398-2. 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 t

Seite 34 - ● Fuzzy control

4REMOTE CONTROLLERMSH-07NV - MSH-09NV - MSH-12NV - MSH-18NV - MSH-18NV -E2E1E1E1E1OB207t-1qxp 25/9/97 8:51 PM Page 4

Seite 35 - 1.66 deg

40SLEEP8-6. AUTO VANE OPERATION(1) Vane motor driveMSH-N series is equipped with a stepping motor for the vane. The rotating direction, speed, and ang

Seite 36

41(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

Seite 37 - , MSH-07/09/12/18NV- and

428-8. 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 correct

Seite 38

438-9. EMERGENCY-TEST OPERATIONWhen the remote controller is missing, has failed or the batteries run down, press the EMERGENCY OPERATION switchon the

Seite 39 - 8-4. HEAT ( ) OPERATION

449SERVICE FUNCTIONS1. COMPULSORY DEFROSTING MODE FOR SERVICEBy short circuit of the connector JP607 and R853 on the outdoor deicer P.C. board, defros

Seite 40 - 8-6. AUTO VANE OPERATION

45How to modify the remote controller P.C. boardRemove batteries before modification.The board has a print as shown below :The P.C.board has the print

Seite 41

46When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed arememorized by the indoor ele

Seite 42 - PROGRAM TIMER

4710 TROUBLESHOOTING10-1 Cautions on troubleshooting10-1-1 Before troubleshooting, check the followings:1) Check the power supply voltage.2) Check the

Seite 43 - Emergency operation

4810-2 Instruction of troubleshootingIndoor unit oper-ates. Outdoor unitdoesn’t operate.Outdoor unitoperates inonly TestRun opera-tion.Outdoor unitdoe

Seite 44 - SERVICE FUNCTIONS

4910-2-1 troubleshooting check table❈ Before taking measures, make sure that the symptom reappears, for accurate troubleshooting.Self check tableNO.12

Seite 45 - MSH-24NV - MSH-18NV

5MSH-07NV - (Serial number 7000201T~) MSH-09NV - (Serial number 7000201T~)MSH-12NV - (Serial number 7000001T~) MSH-24NV -MSH-07NV - MSH-09NV -MS

Seite 46 - MSH-18NV

50Measure the resistance between the terminals with a tester.(Coil wiring temperature10°C ~ 30°C)CompressorRoom temperaturethermistor10-2-2 Trouble cr

Seite 47 - 10 TROUBLESHOOTING

51YesYesCheck of indoor fan motorACheck of receiver P.C. boardBInodoor fan does not operate.Repair the indoor fan motor.Disconnect lead wires from con

Seite 48

52Check both “parts side”and “patternside”of indoor electronic control P.C.board visually.Check of indoor electronic control P.C. boardCThe unit doesn

Seite 49 - Self check table

53YesYesHow to check mis-wiring and serial signal error (when outdoor unit does not work)E1. Turn OFF power supply.2. Turn ON power supply.3. Press EM

Seite 50 - (Approx.)

54YesYesHow to check mis-wiring and serial signal error (when outdoor unit does not work)E1. Turn OFF power supply.2. Turn ON power supply.3. Press EM

Seite 51 - Check of receiver P.C. board

55TEST POINT DIAGRAM AND VOLTAGEMSH-18NV -Indoor electric control P.C.boardE1}}}}}Fan motor power supplyFuse AC250V 3.15APower supply inputAC 220-240

Seite 52 - Check of outdoor unit

56MUH-18NV -Outdoor deicer P.C. boardE1}Defrostthermistor(RT61)}}}}}}}+--Outdoor fan motorAC 220-240VReversing valve coilAC 220-240VR601DC5~10VINPUTA

Seite 53 - MSH-18NV

57TEST POINT DIAGRAM AND VOLTAGEMSH-07NV - MSH-09NV - MSH-12NV -MSH-07NV - MSH-09NV - MSH-12NV -Indoor electronic control P.C. boardE2E2E2E1E1E1CN201

Seite 54 - MSH-24NV

58TEST POINT DIAGRAM AND VOLTAGEMSH-24NV - MSH-18NV -MSH-24NV - MSH-18NV -E3E2E2E1Fan motor power supplyFuse AC 250V 3.15A}Power supply inputAC 22

Seite 55

59MUH-07NV - MUH-09NV - MUH-12NV -MUH-24NV - MUH-07NV - MUH-09NV -MUH-12NV - MUH-18NV - MUH-24NV -MUH-18NV -Outdoor deicer P.C. boardE3E2E2E

Seite 56

6SPECIFICATION3CapacityElectrical dataCompressorIndoorfan motorOutdoorfan motorDimensionsWeightSpecial remarksModelFunctionPower supplyCoefficient of

Seite 57

6011DISASSEMBLY INSTRUCTIONS2. Removing the electronic control P.C. board and thedisplay P.C. board.(1) Remove the front panel. (Refer to 1)(2) Remove

Seite 58

61OPERATING PROCEDURE PHOTOS3. Removing the electrical box(1) Remove the front panel. (Refer to 1)(2) Remove the electrical cover.(3) Disconnect the c

Seite 59

62OPERATING PROCEDURE PHOTOS1. Removing the front panel(1) Remove the screw caps at the down of the front panel.Remove the screws.(2) Pull the panel d

Seite 60 - DISASSEMBLY INSTRUCTIONS

63OPERATING PROCEDUREPHOTOS3. Removing the electrical box(1) Remove the front panel. (Refer to 1)(2) Remove the electrical cover.(3) Disconnect the co

Seite 61 - OPERATING PROCEDURE PHOTOS

6411-3 MUH-07NV - MUH-09NV - MUH-07NV - MUH-09NV -OUTDOOR UNITE2E2E1E1OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the top panel.(2

Seite 62

65OPERATING PROCEDURE PHOTOS4. Removing the outdoor fan motor(1) Remove the screws securing the outdoor fan motor.(2) Remove the lead clamps.(3) Disco

Seite 63 - OPERATING PROCEDURE

66OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the screws of the cabinet.(2) Hold the down of the cabinet on the both side to removethe

Seite 64

67OPERATING PROCEDURE PHOTOS3. Removing the outdoor fan motor(1) Remove the cabinet. (Refer to 1)(2) Disconnect the connector remove the clamp of fan

Seite 65

68OPERATING PROCEDURE PHOTOS1. Removing the electrical parts(1)Remove the screws and the top panel.(2)Remove the screw of the cover panel. To remove

Seite 66 - MUH-18NV

69OPERATING PROCEDURE PHOTOS3. Removing the heat exchanger and the compressor(1)Remove the rear panel.Remove the valve bed, andopen the rear panel to

Seite 67

7CapacityElectrical dataCompressorIndoorfan motorOutdoorfan motorDimensionsWeightSpecial remarksModelFunctionPower supplyCoefficient of performance(C.

Seite 68 - 11-5 MUH-24NV- MUH-24NV

7012 PARTS LIST123456E02 154 000E02 157 000E02 199 000E02 151 010E02 164 100E02 151 234E02 166 234E02 151 970E02 166 067FRONT PANEL(WH)FRONT PANEL(WH)

Seite 69

71Symbolin WiringDiagramQ'ty/unitRemarksPart No.NO. Part NameMSH-07NV- (WH)E1 E2MSH-09NV- (WH)E1 E2MSH-12NV-

Seite 70 - 12 PARTS LIST

72E02 096 232E02 085 297E02 199 521E02 085 245E02 096 630E02 128 900E02 164 900E02 047 506E02 096 290E02 096 662E02 096 661E02 085 515E02 154 642E02 0

Seite 71

731234567PROPELLER FANOUTDOOR FAN MOTORCOMPRESSOR CAPACITORTERMINAL BLOCKDEFROST THERMISTORDEICER P.C. BOARDREVERSING VALVE COILRA6V29-25+/440VACMFC1T

Seite 72

74Part number that are circled is not shown in the illustration.123456789101112131415161718192021GRILLCABINET ASSEMBLYBACK PANELSERVICE PANELCOMPRESSO

Seite 73

75Symbolin WiringDiagramQ'ty/unit1PC/SET3PCS/SETRemarksPart No.NO.Part NameMSH-18NV- MSH-24NV- 1234567FRONT PANEL(WH)GRILLE(WH)BOX(WH)AIR FILTER

Seite 74 - STRUCTURAL PARTS

7612345678910111213141516171819NO.E02 143 235E02 143 040E02 141 702E02 141 300E02 213 300E02 001 505E02 138 395E02 320 395E02 139 450E02 198 450E02 21

Seite 75

77Symbolin WiringDiagramQ'ty/unitMUH-18NV-RemarksPart No.NO. Part NameE3E2E1E02 141 232E02 141 521E02 141 245E02 139 630E02 139 515E02 139 900E02

Seite 76 - MSH-18NV- MSH-24NV

7817137 5 312222048961412 15 1611181019OUTDOOR UNITSTRUCTURAL PARTSMUH-24NV-MUH-24NV-E2E12423OB207t-3qxp 25/9/97 9:11 PM Page 78

Seite 77

79OUTDOOR UNITSTRUCTURAL PARTSMUH-24NV-MUH-24NV-E2E1Symbolin WiringDiagramQ'ty/unitMUH-24NV-RemarksPart No.NO. Part NameE1MUH-24NV-E2E02 214 232E

Seite 78

8CapacityElectrical dataCompressorIndoorfan motorOutdoorfan motorDimensionsWeightSpecial remarksModelFunctionPower supplyCoefficient of performance(C.

Seite 79

New publication, effective Sep. 1997Specifications subject to change without notice.CCCopyright 1997 MITSUBISHI ELECTRIC ENGINIEERING CO.,LTDIssued in

Seite 80 - 13 OPTIONAL PARTS

9CapacityElectrical dataCompressorIndoorfan motorOutdoorfan motorDimensionsWeightSpecial remarksModelFunctionPower supplyCoefficient of performance(C.

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