62
0
10
20
30
40
50
-20 -10
0
10 20 30 40 50
< Thermistor for lower temperature >
Temperature (
:
)
Resistance (K
"
)
<Thermistor Characteristic graph>
Room temperature thermistor(RT11)
Indoor coil thermistor(RT12)
Thermistor R
0
=15k
'
± 3%
Fixed number of B=3480k
'
± 2%
Rt=15exp { 3480( ) }
0
:
15k
'
10
:
9.6k
'
20
:
6.3k
'
25
:
5.2k
'
30
:
4.3k
'
40
:
3.0k
'
Thermistor R
0
=6.0k
'
±5%
Fixed number of B=3390k
'
±2%
Rt=15exp { 3390( ) }
0
:
6.0k
'
10
:
3.9k
'
20
:
2.6k
'
25
:
2.2k
'
30
:
1.8k
'
40
:
1.3k
'
Thermistor for
lower temperature
1
273+t
1
273
1
273+t
1
273
-20
0
20
40
60
80
< Thermistor for drain sensor >
Temperature (
:
)
0
1
2
3
4
5
6
7
8
9
10
Resistance (K
"
)
Thermistor for
drain sensor
OC280-B-3.qxp 03.5.23 1:06 PM Page 62