Mitsubishi Electric PKFY-P50VGM-A Service Manual download pdf (Page 13)

TROUBLESHOOTING

REFRIGERANT SYSTEM DIAGRAM

8-1. HOW TO CHECK THE PARTS

PKFY-P32, 40, 50VHM-E PKFY-P32, 40, 50VHM-ER1

PKFY-P32, 40, 50VHM-E

PKFY-P32, 40, 50VHM-ER1

Parts name Check points

Disconnect the connector then measure the resistance using a tester.

(At the ambient temperature 10~30)

Disconnect the connector then measure the resistance value using a tester.

(Coil temperature 20)

Vane motor (MV)

Linear expansion

valve (LEV)

Refer to the next page for the details.

Room temperature

thermistor (TH21)

Liquid pipe temperature

thermistor (TH22)

Gas

pipe temperature

thermistor (TH23 ,24)

Normal

4.3k~9.6k

Abnormal

Open or short

Normal

200 ± 10%

Abnormal

(1)-(5)

White-Red

(2)-(6)

Yellow-Brown

(3)-(5)

Orange-Red

(4)-(6)

Blue-Brown

Open or short

Measure the resistance between the terminals using a tester. (Coil temperature 25)

Normal

350 ± 7%

Abnormal

-

Brown-Red

-

Brown-Orange

-

Brown-Yellow

-

Brown-Green

Open or short

Fan motor (MF)



Red



Yellow



Brown

Orange



Green

Connect pin No.

LEV

White

Yellow

Orange

Blue

Red

Brown

CN60

Refer to 8-1-3.

Strainer (#50mesh)

Strainer (#100mesh)

Strainer1 (#50mesh)

Strainer2 (#100mesh)

Heat exchanger

Room temparature thermistor TH21

Gas pipe thermistor TH23

Liquid pipe thermistor TH22

Linear expansion valve

Gas pipe

Liquid pipe

Flare connection

Gas pipe

Liquid pipe

PKFY-P32VHM-E(R1)

PKFY-P40VHM-E(R1)

:12.7(1/2)

:6.35(1/4)

PKFY-P50VHM-ER1

:12.7(1/2)

:6.35(1/4)

Item

Service Ref.

Unit : mm (inch)

Gas pipe thermistor TH24

PKFY-P50VHM-E

:12.7(1/2)/:15.88(5/8)

:6.35(1/4)/:9.52(3/8)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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Mitsubishi Electric PKFY-P50VGM-A Service Manual Page 13

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