Mitsubishi Mr.Slim MS09NW Service Manual Download Page 33

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

Measure the resistance between the terminals with a tester.
(Coil wiring temperature50°F ~ 86°F)

Compressor

Room
temperature
thermistor

MS09NW, MS12NN, MS15NN, MS17NN
11-2-2 Trouble criterion of main parts

Part name

Indoor coil
thermistor

Indoor fan
motor

Motor part

Sensor part

Motor part

Outdoor fan
motor

Vane motor

Check method and criterion

Measure the resistance with a tester.
(Part temperature 50°F ~ 86°F)

Measure the voltage Power ON.

Measure the resistance between the terminals with a tester.
(Part temperature 50°F ~ 86°F)

Figure

09NW

12/15/17 NN

09NW

RED

ORN

BLK

BLU

BLK

WHT

YLW

GRY

BRN

WHITE

Normal

Ω

~ 20k

Ω

Abnormal

Opened or short-circuited

Normal

09NW

0.8~1.1

Ω

1.9~2.4

Ω

1.9~2.4

Ω

1.4~1.9

Ω

2.4~3.0

Ω

1.4~1.8

Ω

2.3~2.9

Ω

12NN

15NN

17NN

C-R

C-S

Normal

09NW

Abnormal

Opened or

short-circuited

76~83

Ω

WHT-BLK

BLK-RED

BRN-YLW

YLW-GRY

Normal

09NW

4.5 ~ 5.5V

Abnormal

Remain 0V or 5V

(When fan revolved one time)

➔

0V (Approx.)

Normal

Abnormal

Opened or short-circuited

09NW

282 ~ 305

Ω

12/15/17NN

358 ~ 387

Ω

Abnormal

Opened or

short-circuited

70~76

Ω

2.7~3.4

Ω

Normal

12/15NN

67~73

Ω

9~9.8

Ω

53~59

Ω

10~12

Ω

17NN

WHT-BLK

BLK-YLW

4.9~5.5

Ω

5.8~6.4

Ω

4.6~5.0

Ω

5.4~6.0

Ω

YLW-BLU

BLU-BRN

28~32

Ω

36~40

Ω

BRN-RED

Abnormal

Opened or

short-circuited

Normal

09NW

55~68

Ω

114~141

Ω

102~126

Ω

97~120

Ω

12/15/17NN

WHT-BLK

BLK-YLW

Abnormal

Opened or

short-circuited

12/15/17 NN

RED

ORN

BLK

WHT

OB192--2.qxp 23/6/97 11:50 PM Page 33

Summary of Contents for Mr.Slim MS09NW

Page 1: ...UNCTIONS 30 11 TROUBLESHOOTING 31 12 DISASSEMBLY INSTRUCTIONS 39 13 PARTS LIST 47 14 OPTIONAL PARTS 55 Wireless type Models MS09NW WH MU09NW MS12NN WH MU12NN MS15NN WH MU15NN MS17NN WH MU17NN No OB192...

Page 2: ......

Page 3: ...perature set this way is then memorized for immediate recall whenever the air conditioner is used again And what s more the new controller has been made more redesigned and easier to handle than befor...

Page 4: ...er has changed The timer function was changed to the clock timer function 4 Indoor auto vane has been adopted MS12EN MS15EN MS12NN MS15NN 1 Indoor unit has changed Outline dimension changes 39 3 8 o7...

Page 5: ...ration section MS12NN Emergency operation switch Emergency operation switch OUTDOOR UNIT MU12NN MU15NN MU17NN MU09NW When the front panel is opened MS09NW MS09NW MS12NN MS15NN MS17NN MS12NN MS15NN MS1...

Page 6: ...ength Btu h W V phase Hz A A F L A CFM CFM Pints h dB A in in in in lbs V phase Hz A A F L A R L A L R A dB A in in in lbs in in ft ft 8 500 840 10 1 10 2 MS09NW 0 5 0 37 208 265 328 177 226 279 2 3 3...

Page 7: ...r Outdoor Height difference Piping length Btu h W V phase Hz A A F L A CFM CFM Pints h dB A in in in in lbs V phase Hz A A F L A R L A L R A dB A in in in lbs in in ft ft 14 300 14 600 1 370 1 400 10...

Page 8: ...FFERENCE Models MS09NW MS12NN MS15NN MS17NN Additional piping Max length ft A 49 Gas 3 8 5 8 Piping size O D in Length of connecting pipe in Liquid 1 4 Indoor unit 16 15 16 Outdoor unit 0 MAX REFRIGER...

Page 9: ...3 TC 8 5 7 9 7 3 12 6 11 7 10 8 14 6 13 6 12 5 16 1 15 0 13 8 SHC 4 8 5 5 6 1 7 3 8 3 9 1 7 5 8 8 9 8 8 3 9 7 10 8 TPC 0 93 0 89 0 86 1 25 1 20 1 15 1 55 1 48 1 43 1 77 1 70 1 63 TC 7 8 7 3 6 6 11 6 1...

Page 10: ...71 392CFM 0 17 Airflow Bypass Factor 12 10 8 6 1 2 65 75 85 95 105 115 67 75 85 95 105 115 0 8 0 6 Total power consumption kW Total capacity o 10 Bw h 16 14 12 10 8 2 1 71 67 63 71 67 63 71 67 63 71...

Page 11: ...the curve shows the reference point MU09NW MU09NW 86 F 80 75 70 86 F 80 75 70 300 PSIG 280 260 240 220 200 180 170 68 70 75 80 85 90 95 100 104 F Condensing pressure Outdoor ambient temperature Indoo...

Page 12: ...reference point MU12NN MU12NN 86 F 80 75 70 86 F 80 75 70 300 PSIG 280 260 240 220 200 180 160 68 70 75 80 85 90 95 100 104 F Condensing pressure Outdoor ambient temperature Indoor DB temperature Indo...

Page 13: ...sure Outdoor ambient temperature Indoor DB temperature Indoor DB temperature PSIG 40 50 60 70 80 90 68 70 75 80 85 90 95 100 104 F Suction pressure Outdoor ambient temperature Data is based on the con...

Page 14: ...re Indoor DB temperature Indoor DB temperature PSIG 40 50 60 70 80 90 68 20 70 75 80 85 90 95 100 104 F Suction pressure Outdoor ambient temperature 86 F 80 75 70 86 F 80 75 70 Data is based on the co...

Page 15: ...e Intake air temperature Discharge air temperature Fan speed Airflow Hi Intake air temperature Fan speed High Low Airflow Unit Btu h kW kW A kW A A psi G psi G F F F F ft F F F F rpm CFM F F rpm CFM M...

Page 16: ...MS09NW MU09NW MS12NN MU12NN MS15NN MU15NN MS17NN MU17NN Outdoor unit precharged up to 25ft 2 lbs 2 oz 2 lbs 14 oz 2 lbs 14 oz 25ft 0 30ft 1 33ft 1 Refrigerant piping length one way 40ft 2 45ft 2 49ft...

Page 17: ...4 19 11 16 5 8 1 1 8 3 15 16 1 4 3 9 16 2 13 16 3 16 7 3 16 3 8 16 15 16 1 3 8 O D 3 4 I D 7 8 12 5 8 12 5 16 11 16 3 9 16 4 3 16 7 16 5 16 o 7 8 2 3 8 1 4 4 3 8 16 11 16 4 13 16 1 1 16 2 9 16 13 1 2...

Page 18: ...11 16 17 11 16 17 1 4 13 7 8 39 15 16 2 15 16 12 5 8 1 15 16 2 3 16 30 1 2 7 1 2 6 5 16 11 16 7 1 2 3 16 5 16 19 11 16 1 2 16 15 16 1 15 16 O D 1 1 8 O D 5 8 1 1 8 9 3 4 1 3 8 5 8 13 12 16 13 16 1 15...

Page 19: ...electric wiring diagram 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector NOTE 1 Use copper conductors only For field wiring 2 w show the terminals with a...

Page 20: ...c wiring refer to the outdoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector NOTE 1 Use copper conductors on...

Page 21: ...Accumulator Accumulator Compresser Muffler Muffler Room temperature thermistor RT11 Room temperature thermistor RT11 Distributor Indoor coil thermistor RT12 Fusible plug MU12NN OD 0 12 o ID 0 071 o 31...

Page 22: ...L CONTROL or COOL mode Once the mode is fixed the mode will not change by room temperature afterwards Under the ON TIMER operation the mode is determined according to the room temperature when the ope...

Page 23: ...control When the TOO COOL or TOO WARM button is pressed the microprocessor changes the set temperature considering the room temperature the frequency of pressing TOO COOL or TOO WARM button and the us...

Page 24: ...r fan operates at the set speed by FAN SPEED CONTROL button Followings are the fan speed in AUTO Initial temperature difference Room temperature minus set temperature 4 degrees or more Hi Room tempera...

Page 25: ...tinues to operate regardless of thermostat s OFF ON w Coil frost prevention is as same as COOL mode of I FEEL CONTROL 3 DRY OPERATION 1 Press OPERATE STOP button OPERATION INDICATOR of the indoor unit...

Page 26: ...1 and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency With this control when the fan speed is switched the rotational frequency cha...

Page 27: ...rmines the vane angle and operation to make the optimum room temperature distribution 5 Dew prevention During COOL or DRY operation with the vane angle at Angle 4 or 5 when the compressor cumulative o...

Page 28: ...E1 Be sure to place the remote controller at the position where its signal can reach the air conditioner even during TIMER operation or the set time may deviate within the range of about 10 minutes NO...

Page 29: ...mal After 30 minutes of test run operation the system shifts to EMERGENCY COOL MODE with a set temperature of 75 F The fan shifts to MED speed This operation continues until the EMERGENCY OPERATION sw...

Page 30: ...own below 1 AUTO RESTART FUNCTION When the indoor unit is operated with the remote controller the signals of the operation mode the set temperature and the fan speed are sent from the indoor electroni...

Page 31: ...p on the indoor unit is flashing to indicate an abnormality To make sure check the abnormality indication for 2 or 3 times before starting service work 2 If the P C board is supposed to be defective c...

Page 32: ...econd OFF Start C A 11 2 1 troubleshooting check table Operation Indicator w Before taking measures make sure that the symptom reappears for accurate troubleshooting Self check table NO 1 2 Abnormal p...

Page 33: ...ter Part temperature 50 F 86 F Figure 1 2 3 09NW 12 15 17 NN 09NW RED RED RED ORN BLK BLU BLK BLK WHT WHT YLW YLW GRY BRN BRN WHITE 1 2 3 P F Normal 8k 20k Abnormal Opened or short circuited Normal 09...

Page 34: ...d then No 2 and No 3 09NW Are lead wires connected Reconnect lead wires Is soldered point nomal Replace indoor electronic control P C board Resolder it Is resistance 0 short circuit or open circuit Ye...

Page 35: ...Operate ON OFF with remote controller and emits a beep tone Replace remote controller Re install the unit away from lights Attach a filter on receiving part Check the model name of remote controller...

Page 36: ...ually No Be sure to check both fuse and varistor in any case Is varistor NR11 burnt Yes Is fuse F11 blown Check of outdoor unit D Compressor and outdoor fan do not operate Only indoor fan operates Che...

Page 37: ...ntrol P C board CN201 No 1 Varistor NR11 Fuse AC250V 3 0A Room temperature thermistor RT11 Indoor coil thermistor RT12 Timer short mode point 32 F 50 68 86 104 122 140 Room temperature thermistor RT11...

Page 38: ...wer supply input AC115V DC5V Indoor coil thermistor RT12 Time short mode point Room temperaure thermistor RT11 DC12V 32 F 50 68 86 104 122 140 Room temperature thermistor RT11 Indoor coil thermistor R...

Page 39: ...e terminal block 5 Disconnect all the connectors on the electronic control P C board 6 Disconnect the white lead wire and the black lead wire from 52C relay 7 Remove the electronic control P C board a...

Page 40: ...ove the front panel 2 Remove the screw of the vane motor disconnect the con nector 3 Remove the vane motor 5 Removing the line flow fan and the indoor fan motor 1 Remove the front panel Refer to 1 2 D...

Page 41: ...o 1 2 Remove the screw remove the electrical cover 3 Remove the elect cover 4 Remove the screw on the terminal block 5 Unhook the catch of the lamp holder 6 Remove the receiver holder 7 Disconnect the...

Page 42: ...crews of the bearing support 6 Remove the screw of the heat exchanger and unhook the catch 7 Lifting the heat exchanger remove the bearing support 8 Remove the motor support 9 Loose the screw fixing t...

Page 43: ...oose the propeller fan in the rotating direction for removal When attaching the propeller fan align the mark on the pro peller fan and the motor shaft cut section Set the fan in position by using the...

Page 44: ...ve the overcurrent relay 7 Remove the compressor nuts 8 Detach the suction pipe welded section and discharge pipe welded section NOTE Before using a torch reclaim gas from the pipes until the pres sur...

Page 45: ...on the both side to remove the cabinet 2 Removing the electrical parts 1 Remove the service panel and the cabinet 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Termina...

Page 46: ...terminal cover on the compressor 4 Disconnect lead wires from the glass terminal of the com pressor Refer to 2 5 Release gas from the refrigerant circuit 6 Disconnect the welded part of the discharge...

Page 47: ...PLATE SCREW CAP WH 1 1 2 1 1 2 1PC SET 2PCS SET E02 268 000 E02 151 010 E02 164 100 E02 166 234 E02 151 970 E02 166 067 OPTIONAL PARTS See page 55 PARTS LIST INDOOR UNIT HEAT EXCHANGER MS09NW WH No Pa...

Page 48: ...NTROL P C BOARD SLEEVE BEARING FUSE ELECTRICAL BOX INDOOR FAN CAPACITOR VARISTOR RECEIVER AUTO RESTART 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 RC 4W19 2PCS SET 250V 3 0A 5 0 F 250VAC MV MF RT11 RT12 TB...

Page 49: ...FAN GUARD SERVICE PANEL OUTDOOR HEAT EXCHANGER COMPRESSOR COMPRESSOR RUBBER SET STOP VALVE LIQUID STOP VALVE GAS MOTOR SUPPORT BASE CAPILLARY TUBE MUFFLER CONTACTOR 1 1 1 1 1 1 3 1 1 1 1 1 1 1 KH122WE...

Page 50: ...Symbol in Wiring Diagram MU09NW Remarks Drawing No Q ty set 1 2 3 4 5 PROPELLER FAN OUTDOOR FAN MOTOR COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR TERMINAL BLOCK 1 1 1 1 1 RA6W23 55 F 220VAC 5 0 F 250VA...

Page 51: ...17NN WH 12NN WH MS 1PC SET 3PCS SET E02 270 000 E02 271 000 E02 272 000 E02 138 010 E02 143 234 E02 141 100 E02 141 970 E02 143 067 E02 270 007 E02 271 007 E02 272 007 Part number that is circled is...

Page 52: ...RATURE THERMISTOR 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 FAN GUARD RA4W18 RA4W23 2PCS SET 6 0 F 250V 250V 3 0A MF MF MV...

Page 53: ...1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 RH167NHDT RH207NHDT RH231NHDT 25 F 370V 30 F 370V 35 F 370V 3 0 F 440V 0 12 o 0 071 o 31 1 2 0 12 o 0 079 o 27 9 16...

Page 54: ...R PARTS MS09NW WH MS12NN WH MS15NN WH MS17NN WH 1 2 No Parts No Parts Name Symbol in Wiring Diagram MS09NW MS12NN MS15NN MS17NN WH Remarks Drawing No Q ty set 1 2 REMOTE CONTROLLER REMOTE CONTROLLER H...

Page 55: ...Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet DO NOT reuse AIR CLEANING FILTER even if it is washed DO NOT remove or attach AIR CLEANING FILTER...

Page 57: ...3400 Lawrenceville Suwanee Road Suwanee Georgia 30024 Toll Free 800 433 4822 Toll Free Fax 800 889 9904 www mrslim com Specifications are subject to change without notice...

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