OC292-34
PKFY-12NGMU-A
Parts name
Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 50
_
F~86
_
F)
Disconnect the connector then measure the resistance with the tester.
(Surrounding temperature 68
_
F)
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68
_
F~86
_
F)
Vane motor
Linear expansion
valve
(Refer to page OC292-36 for details.)
Room temperature
thermistor (TH21)
Liquid pipe thermistor
thermistor (TH22)
Gas pipe thermistor
thermistor (TH23)
Normal
4.3k
"
~9.6k
"
Abnormal
Open or short
Abnormal
Open or short
Normal
150
"
i
10%
1
-
5
White-Red
2
-
6
Yellow-Brown
3
-
5
Orange-Red
4
-
6
Blue-Brown
Normal
Connector
Abnormal
186
"
~214
"
Open or short
Orange
Red
White
Blue
Brown
Yellow
3
6
1
5
4
2
M
Orange
Red
White
Red — Yellow
Red — Blue
Red — Orange
Red — White
Blue
Yellow
3
5
1
2
4
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68
_
F)
Fan motor
1
3
3
2
5
1
Red
White
Black
Relay connector
Protector
141.2
"
131.5
"
Abnormal
Open or short
Red-Black
White-Black
Motor terminal
or
Relay connector
Normal
M
(Refer to page
OC292-36 for details.)
OPEN : 257
I
9
°
F
CLOSE : 174
I
27
°
F
OC292--2.qxp 02.9.26 4:52 PM Page 34