4 Troubleshooting
Thermistor characteristics
SMGB0120 rev.0 - 11/2017
127
4
4.10
Thermistor characteristics
The thermistor is installed in this product to detect the cycle temperature such as water temperature (inlet-outlet of water
side heat exchanger), and outlet liquid refrigerant temperature from the heat exchanger.
The thermistor temperature characteristics are shown in the below figures:
4.10.1
Thermistor temperature characteristics (All temperature except discharge gas)
17B18890
Temperature (ºC)
Thermistor
resistance
(kΩ)
19,3
14,4
10,9
8,3
6,4
5,0
3,9
3,1 2,5
2,0 1,6 1,3 1,1 0,9 0,7 0,6
0,5 0,4 0,4 0,3 0,3
0
5
10
15
20
25
-20 -15 -10 -5 0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
4.10.2
Thermistor temperature characteristics for discharge gas temperature
1072,0
640,4
394,2
249,2
161,5
107,0 72,3
50,0 35,1 25,1 18,2 13,4 9,9 7,5
6,5
0
200
400
600
800
1000
1200
-10 0
10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (ºC)
Thermistor
resistance
(kΩ)
17B24597