Si12-411A
Check
Service Diagnosis
209
6.1.5
Thermistor Resistance Check
Check No.6
Remove the connectors of the thermistors on the PCB, and measure the resistance of each
thermistor using tester.
The relationship between normal temperature and resistance is shown in the graph and the
table below.
Thermistor R25°C=20k
Ω
B=3950
Temperature (°C)
-20
211.0 (k
Ω
)
-15
150
-10
116.5
-5
88
0
67.2
5
51.9
10
40
15
31.8
20
25
25
20
30
16
35
13
40
10.6
45
8.7
50
7.2
Summary of Contents for FTKE25BVM
Page 1: ...C Series Applied Models zInverter Multi Cooling Only zInverter Multi Heat Pump Si12 411A...
Page 6: ...Si12 411A Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...Si12 411A vi Table of Contents...
Page 67: ...Specifications Si12 411A 56 Specifications...
Page 173: ...Instruction Si12 411A 162 System Configuration...
Page 227: ...Check Si12 411A 216 Service Diagnosis...
Page 295: ...Si12 411A iv Index...
Page 298: ...Si12 411A Printed in Singapore 03 2005 AK COS...
