<Thermistor feature chart>
Low temperature thermistors
Pipe temperature thermistor <Liquid> (TH3)
Pipe temperature thermistor <cond.> (TH6)
Outdoor temperature thermistor (TH7)
Gas pipe temperature thermistor (TH-A ~ TH-E)···· Branch box
Thermistor R0 = 15k' ± 3%
B constant = 3480 ± 2%
1
=15exp{3480( 273+t – 273 )}
R
t
0:
15k'
30:
10:
9.6k'
40:
20:
6.3k'
25:
5.4k'
Medium temperature thermistor
Heatsink temperature thermistor (TH8)
Thermistor R50 = 17k' ± 2%
B constant = 4170 ± 3%
1
=17exp{4170( 273+t – 323 )}
R
t
0:
180k'
25:
50k'
50:
17k'
70:
8k'
90:
4k'
High temperature thermistor
Discharge temperature thermistor (TH4)
Thermistor R120 = 7.465k' ± 2%
B constant = 4057 ± 2%
1
=7.465exp{4057( 273+t – 393 )}
R
t
20: 250k'
70:
30: 160k'
80:
40: 104k'
90:
50:
70k'
100: 13.0k'
60:
48k'
110:
1
4.3k'
3.0k'
1
1
34k'
24k'
17.5k'
9.8k'
50
40
30
20
10
0
-20 -10
200
150
100
50
0
25
500
400
300
200
100
0
25
55
0
10
20
30
40
50
Temperature (:)
50
75
100110
125
Temperature (:)
50
75
100
Temperature (:)
120