Mitsubishi Electric PKFY-P32VGM-E Technical & Service Manual Download Page 1

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TECHNICAL & SERVICE MANUAL

CONTENTS

1. SAFETY PRECAUTION ···························2

2. PART NAMES AND FUNCTIONS············6

3. SPECIFICATIONS ····································8

4. OUTLINES AND DIMENSIONS ·············10

5. WIRING DIAGRAM·································11

6. REFRIGERANT SYSTEM DIAGRAM····12

7. TROUBLE SHOOTING ··························13

8. DISASSEMBLY PROCEDURE ··············20

9. PARTS LIST ···········································23

10. RoHS PARTS LIST ································25

<Indoor unit>
[Model names]

[Service Ref.]

PKFY-P32VGM-E

PKFY-P40VGM-E

PKFY-P50VGM-E

No. OC310

REVISED EDITION-A

Wall Mounted

Series PKFY

Indoor unit

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

R407C

R22

R410A

Note:
• This manual describes only

service data of the indoor
units.

• RoHS compliant products

have <G> mark on the spec
name plate.

• For servicing of RoHS com-

pliant products, refer to the
RoHS Parts List.

Revision:
• RoHS PARTS LIST is added.
• Some descriptions have

been modified.

• Please void OC310.

July 2006

OC310A---1.qxp 06.7.7 3:48 PM Page 1

Summary of Contents for PKFY-P32VGM-E

Page 1: ...ce Ref PKFY P32VGM E PKFY P32VGM E PKFY P40VGM E PKFY P40VGM E PKFY P50VGM E PKFY P50VGM E No OC310 REVISED EDITION A Wall Mounted Series PKFY Indoor unit SPLIT TYPE HEAT PUMP AIR CONDITIONERS R407C R22 R410A Note This manual describes only service data of the indoor units RoHS compliant products have G mark on the spec name plate For servicing of RoHS com pliant products refer to the RoHS Parts L...

Page 2: ...low residual oil piping If there is a large amount of residual oil hydraulic oil etc inside the piping and joints deterioration of the lubricant will result Use ESTR ETHER or HAB as the lubricant to coat flares and flange connection parts If large amount of mineral oil enter that can cause deterioration of refrigerant oil etc Use liquid refrigerant to seal the system If gas refrigerant is used to ...

Page 3: ...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 Refrigerant charge base 7 Refrigerant cylinder For R407C Top of cylinder Brown Cylinder with syphon 8 Refrigerant recovery equipment ...

Page 4: ...ols with care If dirt dust or moisture enter into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylinder If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered Flare tool Electronic refrigerant charging scale Vacuum pump adaptor Size adjustment gauge Gauge manifold Torque ...

Page 5: ...rmed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase Gravimeter Unit 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3MPa G or over 2 Charge hose Only for R410A Use pressure performance of 5 0...

Page 6: ...enu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the door ON OFF button Fan Speed button Filter button Enter button Test Run button Check button Clear button Airflow Up Down button Louver button Operation button To preceding operation number Ventilation button Operation button To next operation number On the controls are...

Page 7: ...ponding timer is set Up Down Air Direction indica tor The indicator shows the direc tion of the outcoming airflow One Hour Only indicator Displayed if the airflow is set to weak and downward during COOL or DRY mode Operation varies according to model The indicator goes off after one hour at which time the airflow di rection also changes Room Temperature display Shows the room temperature Louver di...

Page 8: ...ng Heating Current PKFY P32VGM E PKFY P40VGM E PKFY P50VGM E Single phase 220V 230V 240V 50Hz 220V 60Hz 3 6 4 0 4 5 5 0 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 Linflow fan 1 0 0 03 Polyethylene sheet PP honey comb O D 20 PVC pipe VP 20 connectable 16 5 6 6 3 12 11 10 9 12 7 1 2 15 88 5 8 6 35 1 4 9 52 3 8 43 40 37 34 11 5 10 5 9 5 ...

Page 9: ...ol TH21 TH22 TH23 FUSE MF C1 MV LEV TB2 TB5 TB15 PKFY P32VGM E PKFY P40VGM E Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ 250V 6 3A PM4V30 K 220 240V 220V 50 60Hz 4 pole Output 30W OFF 125 5 2 0µF 440V MP 35 EA DC12V DC1...

Page 10: ... 60 70 245 50 395 400 190 60 70 35 160 40 705 235 Less than 15 198 70 245 60 235 53 340 715 225 340 80 280 233 990 79 Unit mm PKFY P32VGM E PKFY P40VGM E PKFY P50VGM E Installation plate balance point hole 49 5 hole for tapping screw Knock out hole for right rear piping Right rear piping hole Necessary clearance for Unit installation R 5 2 5 R52 5 R5 2 5 R5 2 5 Unit center Right side Allowing clea...

Page 11: ...CONTROLLER TO OUTDOOR UNIT TB5 3RD DIGIT 2ND DIGIT 1ST DIGIT 0 SW14 CONNECTION NO SWC RED ADDRESS CN82 RED ADDRESS CN43 RED BLU N TB2 L GRN YLW Power supply for MA Remote controller 3 2 1 Thermistor TH23 0ºC 15k 25ºC 5 4k Pipe temperature detection Gas Indoor power board P B MA Remote Controller TB15 1 2 1 2 2 1 4 3 2 1 8 7 6 5 4 3 2 1 2 1 3 2 1 1 3 2 1 3 1 2 3 1 1 2 1 2 3 4 5 6 5 1 3 1 3 2 MF 1 2...

Page 12: ...r TH21 Gas pipe temperature thermistor TH23 Liquid pipe temperature thermistor TH22 Linear expansion valve Gas pipe Liquid pipe Flare connection PKFY P32VGM E PKFY P40VGM E PKFY P50VGM E Gas pipe PKFY P32VGM E PKFY P40VGM E 12 7 1 2 Liquid pipe 6 35 1 4 Capacity Item PKFY P50VGM E 12 7 1 2 or 15 88 5 8 6 35 1 4 or 9 52 3 8 ...

Page 13: ...tester Surrounding temperature 20 C Normal 4 3k 9 6k Abnormal Open or short Normal Abnormal 186 214 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 150 10 Abnormal Open or short 2 6 Yellow Brown 3 5 Orange Red 4 6 Blue Brown 1 3 2 2 3 1 Red White Black Fan Protector Orange Red White Blue Brown Yellow 3 6 1 5 4 2...

Page 14: ...e temperature thermistor TH22 Gas pipe temperature thermistor TH23 Thermistor R0 15k 3 Fixed number of B 3480K 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 4k 30 4 3k 40 3 0k Thermistor for lower temperature Linear expansion valve 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 ...

Page 15: ...sed 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 Excha...

Page 16: ...ooling limit angle setting w4 Horizontal angle Down B C Effective Not effective Heater 4deg up Not effective Effective Target Superheat setting w5 9degrees 6degrees Target Sub cool setting 15degrees 10degrees ON OFF 1 2 3 4 5 ON OFF 1 2 3 4 5 6 7 8 9 10 ON OFF 1 2 3 4 5 6 Capacity SW2 Capacity SW2 Capacity SW2 P32 P40 Address board At delivery Indoor controller board Indoor controller board Indoor...

Page 17: ...12 2nd digit address setting Rotary switch SW14 Connect ion No setting Rotary switch Address setting should be done when M NET remote controller is being used This is the switch to be used when the indoor unit is operated with R2 series outdoor unit as a set 220V 240V 220V 240V Address board At delivery 2 SW5 Voltage Selection If the unit is used at the 230V or 240V area set the voltage to 240V If...

Page 18: ...board CN2S 12 5 13 7V DC Pin1 1 CN2M Connect to the terminal block TB5 M NET transmission connecting wire 24 30V DC non polar CN3A Connect to the terminal block TB15 MA Remote controller connecting wire Between 1 1 to 3 3 8 7 13V DC Pin1 1 CN29 Pipe temperature thermistor Gas TH23 CN21 Pipe temperature thermistor Liquid TH22 LED2 Power supply for MA Remote controller CN32 Connector Remote switch S...

Page 19: ...power board PKFY P32VGM E PKFY P40VGM E PKFY P50VGM E CNSK Connect to the indoor controller board CNDK Between 1 1 to 3 3 220 240V AC CN2S Connect to the indoor power board CN2D Between 1 1 to 3 3 12 6 13 7V DC Pin1 1 ...

Page 20: ...move the set 3screws 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 the photo 1 3 Remove the electrical parts box 2screws 4 Remove the electrical parts box cover 1 screw 5 Disconnect the connector on the indoor controller board and remove the controll...

Page 21: ...emoving the gas pipe thermistor TH23 1Disconnect the connector CN29 black on indoor controller board 2Remove the gas pipe thermistor with set to the pipe Electrical parts box Liquid thermistor Room thermistor Gas pipe thermistor 6 REMOVING THE NOZZLE ASSEMBLE 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 Pull...

Page 22: ...fixture fixing bearing w The fan motor is removable first when the fan removing is hard w When resetting the fan to the fan motor Locate and fix the shaft after installing the fan Photo10 Heat exchanger Set screws Fixture fixing bearing 10 REMOVING THE HEAT EXCHANGER 1 Remove the terminal block cover 2 Remove the front panel See the photo 1 3 Remove the electrical parts box See the photo 7 4 Remov...

Page 23: ...s Drawing No Wiring Diagram Symbol Recom mended Q ty Unit Amount Price R01 89Y 651 R01 07Y 092 R01 07Y 691 R01 A16 500 R01 07Y 002 R01 07Y 096 R01 85Y 304 T7W B01 294 R01 07Y 658 R01 07Y 635 R01 07Y 808 R01 07Y 623 R01 09Y 658 FRONT PANEL VANE SLEEVE FRONT GRILLE AIR FILTER AUTO VANE SCREW CAP ADDRESS CABLE ADDRESS BOARD CORNER COVER BOX ASSEMBLY BACK PLATE UNDER COVER CORNER COVER A B 3 6 13 4 7 ...

Page 24: ... 480 R01 H57 480 R01 07Y 114 R01 005 103 R01 07Y 102 R01 07Y 106 T7W A00 675 R01 07Y 524 R01 07Y 530 R01 07Y 059 R01 07Y 038 R01 09Y 038 R01 E04 223 R01 07Y 527 R01 07Y 135 R01 07Y 105 T7W 512 716 T7W E00 716 T7W A14 716 R01 588 255 R01 E02 313 T7W E34 310 T7W 520 239 R01 E26 202 R01 E28 202 R01 E34 202 R01 07Y 130 R01 E63 401 FAN MOTOR HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER LINE FLOW FAN SL...

Page 25: ... E Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty Unit Amount Price R01 E05 651 R01 08Y 092 R01 08Y 691 R01 A32 500 R01 08Y 002 R01 08Y 096 R01 A00 304 T7W E01 294 R01 08Y 658 R01 08Y 635 R01 08Y 808 R01 08Y 623 R01 10Y 658 FRONT PANEL VANE SLEEVE FRONT GRILLE AIR FILTER AUTO VANE SCREW CAP ADDRESS CABLE ADDRESS BOARD CORNER COVER BOX ASSEMBLY BACK PLATE UNDER COVER CORNER COVER A B 3 ...

Page 26: ...A T7W A02 762 R01 J34 480 R01 J35 480 R01 J36 480 R01 E22 114 R01 E04 103 R01 08Y 102 R01 08Y 106 T7W A01 675 R01 08Y 524 R01 08Y 530 R01 08Y 059 R01 08Y 038 R01 10Y 038 R01 E14 223 R01 08Y 527 R01 08Y 135 R01 08Y 105 T7W E33 716 R01 E27 246 T7W E32 716 R01 E13 255 R01 E38 313 T7W E53 310 R01 E06 239 R01 H08 202 R01 H07 202 R01 H13 202 R01 08Y 130 R01 H05 401 FAN MOTOR HEAT EXCHANGER HEAT EXCHANGE...

Page 27: ...27 ...

Page 28: ...0 8310 JAPAN cCopyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Jul 2006 No OC310 REVISED EDITION A PDF 8 Distributed in Apr 2004 No OC310 PDF 9 Made in Japan New publication effective Jul 2006 Specifications subject to change without notice ...

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