74
Internal unit: Viessmann Pt500A (green ID label)
460
20
540
100
Resistance
in Ω
Temperature in °C
60
140
180
620
700
780
860
-20
Fig. 64
External unit: NTC 10 k
Ω
(without ID)
0.1
1
10
100
1000
Resistance
in kΩ
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
Temperature in °C
Fig. 65
Maintenance
Checking the sensors
(cont.)
5700 582 GB
Maintenance
