62
9. How to check the parts
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(RT1)
Pipe temperature thermistor(RT2)
Thermistor R
0
=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
1
273+t
1
273
1
1
2
2
3
3
Red
White
Black
Relay connector
Protector
Parts name
Check points
Measure the resistance between the terminals using a tester.
(Winding temperature 20
:
)
Fan motor (MF)
Abnormal
Open or short
Red–Black
White–Black
Motor terminal
or
Relay connector
PKH-2FKA
3
154.3
"
162.0
"
PKH-2.5, 3FKA
2/3
99.5
"
103.9
"
PKH-4FKSA
2/3
62.6
"
74.0
"
Normal
Open or short
Abnormal
Brown–Yellow
Brown–Blue
Red–Orange
Red–Pink
Connector
Normal
186~214
"
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20
:
~30
:
)
Vane motor (MV)
Room temperature
thermistor (RT1)
Pipe temperature
thermistor (RT2)
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10
:
~30
:
)
Normal
4.3k
"
~9.6k
"
Abnormal
Open or short
Protector
OFF : 120
i
5
:
ON : OFF–15
:
OFF:130
i
5
:
ON :80
i
20
:
OC132--3.qxp 1.11.8 10:43 AM Page 62
Содержание Mr.SLIM PKH-2.5FKA
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