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-20 -10 0 10 20 30 40 50
-4 -14 32 50 68 86 104 122
:
°F
Temperature
Resistance (k")
<Thermistor for lower temperature>
<Thermistor Characteristic graph>
Room temperature thermistor(TH1)
Pipe temperature thermistor/liquid(TH2)
Condenser/evaporator temperature
thermistor(TH5)
Thermistor R0=15k' ±3%
Fixed number of B=3480 ± 2%
t(:):Rt=15exp { 3480( ) }
T(˚F):Rt=15exp { 3480( ) }
0: (32˚F) 15k'
10: (50˚F) 9.6k'
20: (68˚F) 6.3k'
25: (77˚F) 5.4k'
30: (86˚F) 4.3k'
40:(104˚F) 3.0k'
Thermistor R0=6.0k' ±5%
Fixed number of B=3390 ±2%
t(:)Rt= 6 exp { 3390( ) }
T(˚F):Rt=6exp { 3390( ) }
0: (32˚F) 6.0k'
10: (50˚F) 3.9k'
20: (68˚F) 2.6k'
25: (77˚F) 2.2k'
30: (86˚F) 1.8k'
40:(104˚F) 1.3k'
60:(140˚F) 0.6k'
Thermistor for
lower temperature
1
273+t
1
273
1
273+t
1
273
< Thermistor for drain sensor >
0
1
2
3
4
5
6
7
8
9
10
Resistance (k")
60 80
140
176
-20 0 20 40
-4 32 68 104
:
°F
Temperature
Thermistor for
drain sensor
1
273+
1
273
T-32
1.8
1
273+
1
273
T-32
1.8
OC370B--1.qxp 07.6.20 2:42 PM Page 26