93
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance
in kΩ
Fig. 59
Sensor type: NTC 10 k
Ω
2.
Check the sensor resistance and compare it with
the curve.
3.
In the event of severe deviation replace the sensor.
Danger
The boiler water temperature sensor is
directly immersed in the heating water (risk of
scalding).
Drain the boiler on the heating water side
before replacing the sensor.
Checking the outlet temperature sensor
Fig. 60
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance
in kΩ
Fig. 61
Sensor type: NTC 10 k
Ω
1.
Pull leads from outlet temperature sensor
A
.
2.
Check the sensor resistance and compare it to the
curve.
3.
In the event of severe deviation replace the sensor.
Danger
The outlet temperature sensor is directly
immersed in the DHW (risk of scalding).
Drain the DHW side of the boiler before
replacing the sensor.
Troubleshooting
Maintenance
(cont.)
5773 216 GB
Diagnosis
Summary of Contents for B2TA
Page 101: ...101 Parts lists Overview of assemblies 5773 216 GB Components ...
Page 107: ...107 Parts lists Hydraulics 5773 216 GB Components ...
Page 118: ...118 0004 0002 0005 0006 0001 0003 Fig 77 Parts lists Miscellaneous 5773 216 GB Components ...
Page 142: ...142 5773 216 GB ...
Page 143: ...143 5773 216 GB ...
