Thermistor - Mitsubishi Electric TRANE NTXAMT12A112AA Service Manual

12.7. Thermistor

<Thermistor Characteristic graph>
Room temperature thermistor (TH1)
Thermistor for
Pipe temperature thermistor (TH2)
lower temperature
Condenser/evaporator temperature
thermistor (TH5)
Thermistor R = 15 k" ± 3%
0
Fixed number of B = 3480 k" ± 2%
1
Rt = 15exp { 3480(
273+t
0°C (32°F) 15 k"
10°C (50°F) 9.6 k"
20°C (68°F) 6.3 k"
25°C (77°F) 5.2 k"
30°C (86°F) 4.3 k"
40°C (104°F) 3.0 k"
Specifications are subject to change without notice.
NTXAMT12, 18, 24, 30, 36A112AA
1
) }
273
54
< Thermistor for lower temperature >
50
40
30
20
10
0
-20 -10 0 10 20 30 40 50
-4 14 32 50 68 86 104 122
Temperature
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(˚C)
˚F