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Mitsubishi Electric Mr.Slim PKFY-P32VGM, Technical & Service Manual

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Mitsubishi Electric Mr.Slim PKFY-P32VGM Technical & Service Manual Download Page 11

11

7

TROUBLE SHOOTING

7-1. How to check PKFY-P32VGM , PKFY-P40VGM , PKFY-P50VGM

Room temperature 
thermistor (TH21)

Liquid pipe
thermistor (TH22) 

Gas pipe thermistor 
(TH23)

Trans

Vane motor

Fan motor

Linear expansion 
valve

Disconnect the connector then measure the resistance with a tester. 
(Surrounding temperature 10°C~30°C)

Disconnect the connector then measure the resistance with a tester.

Measure the resistance between the terminals with a tester.
(Surrounding temperature 20°C~30°C)

Disconnect the connector then measure the resistance with a tester.

(Surrounding temperature 20°C) 

Normal

4.3k

'

~9.6k

'

Abnormal

Open or short

CNT(1)-(3)

CN3T(1)-(3)

             Normal                    Abnormal

 Open or short

Motor terminal or 

relay connector

Normal

Abnormal

Red - Black

141.2

Ω

Open or short

White - Black

131.5

Ω

Normal

(1)-(5)

White-Red

150

Ω

  ±10%

Abnormal

Open or short

(2)-(6)

Yellow-Blown

(3)-(5)

Orange-Red

(4)-(6)

Blue-Brown

1

2

3

1

2

3

CNT

T

CN3T

Red

Blue

Blue

White

1

1

2

2

3

3

Red

White

Black

Relay connector

Protector

1
2
3
4
5
6

LEV

White

Yellow
Orange

Blue
Red

Brown

CN60

Parts name

Check method

Measure the resistance between the terminals with a tester.

(Surrounding temperature 20°C) 

M

Blue

Brown

Yellow

Orange

Red

Pink

Normal

Abnormal

186

Ω

 ~ 214

Ω

Open or short

Red - Pink

Connector

Brown - Yellow

Brown - Blue

Red - Orange

About 70

Ω

About 1

Ω

OC179B

Summary of Contents for Mr.Slim PKFY-P32VGM

Page 1: ... 7 TROUBLE SHOOTING 11 8 DISASSEMBLY PROCEDURE 16 9 PARTS LIST 19 Indoor unit PKFY P32VGM PKFY P40VGM PKFY P50VGM No OC179 REVISED EDITION B Model names Indoor unit Service Ref PKFY P32VGM PKFY P40VGM PKFY P50VGM February 2012 Revision The indicated No of CORNER COVER page 19 in the illus tration have been corrected in REVISED EDITION B Some descriptions have been modified Please void OC179 REVISE...

Page 2: ...ant R22 etc is used the chlorine in the refrigerant may cause the lubricant deterioration Use a vacuum pump with a reverse flow check valve The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricant deterioration Store the piping to be used indoors during installation and both ends sealed until just before brazing Store elbows and other joints in a plastic bag If dust dir...

Page 3: ...ls for R407C refrigerant No Tool name Specifications 1 Gauge manifold Only for R407C Use the existing fitting SPECIFICATIONS UNF7 16 Use high tension side pressure of 3 43MPa G or over 2 Charge hose Only for R407C Use pressure performance of 5 10MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R134a or R407C 5 Adapter for reverse flow check Attach on vacuum pump 6 Refriger...

Page 4: ...sets the room temperature The temperature setting can be per formed in 1 C units Setting range Cooler 19 C to 30 C Heater 17 C to 28 C CHECK TEST RUN button Only press this button to perform an inspection check or test operation Do not use it for normal operation FILTER button This resets the filter service indica tion display AIR DIRECTION button This adjusts the vertical angle of the ventilation...

Page 5: ...ion mode STANDBY display This indicates when the standby mode is set from the time the sleep operation starts until the heating air is discharged DEFROST display This indicates when the defrost operation is performed CHECK display This indicates when a malfunction has occurred in the unit which should be checked POWER display This display lights when the filter need to be cleaned SET TEMPERATURE d...

Page 6: ...ng Heating Cooling Heating Height Width Depth Gas side Liquid side PKFY P32VGM 3150 3550 PKFY P40VGM 4000 4500 Single phase 220 240V 50Hz 220V 60Hz 0 07 0 07 0 32 0 32 Plastic white 0 70Y 8 59 0 97 340 990 235 Cross fin Aluminum plate fin and copper tube Lineflow fan 1 0 0 03 PP Honey comb Outer diameter 20 PVC pipe VP 20 connectable 16 Electric characteristic PKFY P50VGM 5000 5600 11 5 10 5 9 5 8...

Page 7: ...nal block Transmission terminal block Symbol T TH21 TH22 TH23 FUSE MF C1 MV LEV TB2 TB5 PKFY P32VGM PKFY P40VGM Primary 50 60Hz 220 240V Secondary 18 4V 1 7A Resistance 0C 15k 10C 9 6k 20C 6 3k 25C 5 4k 30C 4 3k 40C 3 0k 250V 6 3A PM4V30 K 220 240V 220V 50 60Hz 4 pole Output 30W OFF 125 5 2 0F 440V MP 35 EA DC12V DC12V Stepping motor drive Port dimension 3 2 0 2000pulse L N 330V 30A M1 M2 S 250V 2...

Page 8: ... 205 260 320 345 495 20 75 135 190 245 300 360 405 495 32 0 Knockout hole for right piping Refrigerant pipe Drain pipe Wiring hole Gas pipe Liquid pipe Address board Terminal block for power supply Terminal block for remote control Filter grip 21 21 Knockout hole for under piping Refrigerant piping Drain pipe Wiring hole Service panel Power supply access 5 8F Gas pipe 1 2F Liquid pipe 3 8F 1 4F 50...

Page 9: ...nit always follow the wiring diagram of outdoor unit 2 Symbol S of TB5 is the shield wire connection 3 Symbols used in wiring diagram above are terminal block connecter 4 The setting of the SW2 dip switches differs in the capacity for the detail see the table below 5 Please set the switch SW5 according to the power supply voltare Set SW5 to 240V side when the power supply is 230 and 240 volts When...

Page 10: ...hermistor TH21 Gas pipe thermistor TH23 Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Flare connection PKFY P32VGM PKFY P40VGM PKFY P50VGM Gas pipe PKFY P32VGM PKFY P40VGM 12 7 1 2F Liquid pipe 6 35 1 4F Capacity Item Refrigeration pipe size Flare connection size PKFY P50VGM 15 88 5 8F 9 52 3 8F OC179B ...

Page 11: ...er Surrounding temperature 20 C Normal 4 3k 9 6k Abnormal Open or short CNT 1 3 CN3T 1 3 Normal Abnormal Open or short Motor terminal or relay connector Normal Abnormal Red Black 141 2Ω Open or short White Black 131 5Ω Normal 1 5 White Red 150Ω 10 Abnormal Open or short 2 6 Yellow Blown 3 5 Orange Red 4 6 Blue Brown 1 2 3 1 2 3 CNT T CN3T Red Blue Blue White 1 1 2 2 3 3 Red White Black Relay conne...

Page 12: ... thermistor TH22 Gas pipe thermistor TH23 Drain sensor THD Thermistor R0 15k 3 Fixed number of B 3480k 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 2k 30 4 3k 40 3 0k Thermistor for lower temperature Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the indoor controller board Valve ...

Page 13: ...d all the way It is not necessary to exchange the linear expansion valve if the leakage is small and not making any trouble Liquid pipe thermistor Linear expansion valve Motor will idle and make ticking noise when motor is operated while the linear expansion valve is locked This ticking sound is the sign of the abnormality Check the color of lead wire and missing terminal of the con nector Exchang...

Page 14: ...e Not effective Heater 4 deg up Not effective Effective Target Superheat setting w5 9 degrees 6 degrees Target Subcool setting 15 degrees 10 degrees ON OFF 1 2 3 4 ON OFF 1 2 3 4 5 6 7 8 9 10 ON OFF 1 2 3 4 5 6 MODELS SW2 MODELS SW2 MODELS SW2 PKFY P32VGM PKFY P40VGM Address board Initial setting Indoor controller board Indoor controller board Indoor controller board Initial setting SW4 Unit Selec...

Page 15: ...tary switch SW14 Connection No setting Rotary switch Address setting should be done when network remote controller PAR F25MA is being used This is the switch to be used when the indoor unit is operated with R2 R3 series outdoor unit as a set 220V 240V 220V 240V Address board Initial setting 2 SW 5 Voltage Selection If the unit is used at the 230V or 240V area set the voltage to 240V If the unit is...

Page 16: ...e set 3 screws 4 After removing the lower side of the front panel a little remove it as pulling toward upper 3 REMOVING THE INDOOR CONTROLLER BOARD 1 Remove the terminal block cover 2 Remove the front panel See Photo 1 3 Remove the electrical parts box 2 screws 4 Remove the electrical parts box cover 1 screw 5 Disconnect the connector on the indoor controller board and remove the controller board ...

Page 17: ...oving the gas pipe thermistor TH23 1 Disconnect the connector CN29 blak on the indoor controller board 2 Remove the gas pipe thermistor with set to the pipe Electrical parts box Liquid thermistor Room thermistor Gas pipe thermistor 6 REMOVING THE NOZZLE ASSEMBLY 1 Disconnect the connector CN6V on the indoor controller board 2 Disconnect the lead wire of the vane motor 3 Remove the corner cover 4 P...

Page 18: ...ou remove the fixture fixing bearing w When the fan is hard to remove remove the fan motor first w When resetting the fan to the fan motor locate and fix the shaft after installing the fan Photo 10 Heat exchanger Set screws Fixture fixing bearing 10 REMOVING THE HEAT EXCHANGER 1 Remove the terminal block cover 2 Remove the front panel See Photo 1 3 Remove the electrical parts box See Photo 7 4 Rem...

Page 19: ...RESS CABLE VANE SLEEVE AUTO VANE 1 2 3 1 1 1 1 1 1 1 1 1 1 No Parts No Parts Name Specifications PKFY P32VGM PKFY P40VGM PKFY P50VGM Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty R01 89Y 651 R01 A16 500 R01 07Y 096 R01 10Y 658 R01 08Y 658 R01 07Y 635 R01 07Y 808 R01 07Y 623 R01 07Y 691 T7W B01 294 T7W 85Y 304 R01 07Y 092 R01 07Y 002 PARTS LIST non RoHs compliant 9 9 3 5 2 11 8 4 7 6 1...

Page 20: ... 28 29 FAN MOTOR LINE FLOW FAN RUBBER MOUNT BEARING SUPPORT SLEEVE BEARING BEALING MOUNT MOTOR SUPPORT NOZZLE ASSY GAS PIPE THERMISTOR GUIDE VANE VANE MOTOR DRAIN HOSE CONTROLLER BOARD FUSE DRAIN PLAG TERMINAL BLOCK TERMINAL BLOCK RUN CAPACITOR 2 LIQUID PIPE THERMISTOR POWER TRANS HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER REMOTE CONTROLLER CORD REMOTE CONTROLLER MOTOR COVER GUIDE VANE ARM ROOM ...

Page 21: ...21 OC179B ...

Page 22: ...VISED EDITION A 200 Distributed in Dec 1999 No OC179 50 Distributed in Nov 1999 No OC179 300 Distributed in Dec 1998 No OC179 1 Distributed in Dec 1998 No OC179 357 Made in Japan New publication effective Feb 2012 Specifications are subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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