Hitachi UTOPIA RAS-4HVRP2E - Thermistor; Thermistors for RAS-3 HVRC2

8 Electrical checks of main parts
Thermistor
SMGB0136 rev.0 - 07/2021
165
8
8.2 Thermistor
8.2.1 Thermistors for RAS-3HVRC2
Thermistor for
discharge gas
temperature
(THM9)
Thermistor for
evaporating
temperature
(THM8)
Thermistor for
condensing
temperature
(THM10)
Thermistor for outdoor
ambient temperature
(THM7)

Thermistor for discharge gas temperature (THM9)
For prevention of discharge gas overheating
7,47
5,76
9.93
13.4
35.1
72.3
18.7
25.1
49.9
Thermistor resistance characteristics
Temperature (ºC)
Thermistor resistance (kΩ)

Thermistor for outdoor ambient temperature (THM7)
80
70
60
50
40
30
20
10
0
-15 -10 -5 0510 15 20 25 30 35 40 45 50 55 60
26.0
20.2
15.9
12.6
10.0
8.05
5.31
3.60
2.49
33.7
44.0
58.3
78.0
6.52
4.36
2.99
Thermistor resistance characteristics
Ambient temperature (ºC)
Thermistor resistance (kΩ)