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<Thermistor Characteristic graph>
•Room temperature thermistor (RT11)
Thermistor for
•Pipe temperature thermistor/liquid (RT12)
lower temperature
•Condenser/evaporator temperature
thermistor (RT13)
Thermistor R
=15k' ± 3%
0
Fixed number of B=3480K ± 2%
1
Rt=15exp { 3480(
273+t
0:
15k'
10:
9.6k'
20:
6.3k'
25:
5.2k'
30:
4.3k'
40:
3.0k'
Thermistor for
drain sensor
Thermistor R
=6.0k' ±5%
0
Fixed number of B=3390K ± 2%
1
Rt=6exp { 3390(
273+t
0:
6.0k'
10:
3.9k'
20:
2.6k'
25:
2.2k'
30:
1.8k'
40:
1.3k'
1
) }
273
1
) }
273
15
< Thermistor for lower temperature >
50
40
30
20
10
0
-20 -10 0
10 20 30 40 50
Temperature (:)
< Thermistor for drain sensor >
10
9
8
7
6
5
4
3
2
1
0
-20
0
20
40
Temperature (:)
60
80
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