Hitachi RAS-H(V)RNME-AF Service Manual page 239

9 Electrical checks of
the main parts

Thermistor for outdoor ambient temperature
The thermistor resistance characteristics are shown in the next figure.
Thermistor resis-
tance (KΩ)

Thermistor for evaporating temperature of outdoor unit in heating operation (for defrosting)
Thermistor resis-
tance (KΩ)
229
SMGB0070 rev. 1 - 08/2011
Thermistor characteristics
90
80
70
60
50
40
30
20
10
0
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Ambient temperature (ºC)
Thermistor characteristics
90
80
70
60
50
40
30
20
10
0
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Ambient temperature (ºC)
9