22
9-6. HOW TO CHECK THE PARTS
PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH
Parts name
Check points
Disconnect the connector then measure the resistance using a tester.
(At the ambient temperature 10
~30
)
Vane motor (MV)
Refer to the thermistor.
Room temperature
thermistor (TH1)
Liquid pipe temperature
thermistor (TH2)
Condenser / Evaporator
temperature thermistor
(TH5)
Normal
4.3k
~9.6k
Abnormal
Open or short
Measure the resistance between the terminals using a tester. (Coil temperature 20
)
Normal
250
± 7%
Abnormal
-
Brown-Red
-
Brown-Orange
-
Brown-Yellow
-
Brown-Green
Open or short
Fan motor (MF)
Red
Yellow
Brown
Orange
Green
Connect pin No.
M
Refer to 9-6-2.
0
10
20
30
40
50
-20 -10
0
10 20 30 40 50
< Thermistor for lower temperature >
Temperature (
)
Resistance (k
)
<Thermistor Characteristic graph>
Room temperature thermistor(TH1)
Pipe temperature thermistor/liquid(TH2)
Condenser/evaporator temperature
thermistor(TH5)
Thermistor R
0
=15k
'
± 3%
Fixed number of B=3480
± 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
1
273+t
1
273
9-6-1. Thermistor
