107
For connecting temperature sensors to the Vitotronic
control unit and the process control unit, see from
page 151.
For the installation position of the temperature sensors
in the appliance, see diagram on page 103.
Temperature sensors NTC 10 k
Ω
1.
Pull the leads from the relevant temperature sen-
sor.
2.
Check the temperature sensor resistance and
compare it with the curve on page 108.
3.
In the event of severe deviation, replace the tem-
perature sensor.
4. Flue gas temperature sensor
The flue gas temperature sensor locks out the
appliance when the permissible flue gas tempera-
ture is exceeded. Cancel the lock after the flue sys-
tem has cooled down: Press reset button
R
.
Pt500A temperature sensors
1.
Replace temperature sensors if a corresponding
fault message shown.
2.
Start manual calibration of the temperature sen-
sors with code "16:1".
Temperature sensor overview
Sensor
Control unit
Test element
■
Outside temperature sensor (
!
or X3.1/X3.2)
■
Secondary circuit flow temperature sensor (
aL
)
■
Cylinder temperature sensor (
%
)
■
Flue gas temperature sensor (
aG
)
■
Flow temperature sensor, low loss header (
?
)
Vitotronic control unit
NTC 10 k
Ω
■
Evaporator inlet temperature sensor (
aS
)
■
Evaporator outlet temperature sensor (
aD
)
■
"Burner heat exchanger" temperature sensor (
§
)
Process control unit
NTC 10 k
Ω
■
Room temperature sensors
Remote control
NTC 10 k
Ω
■
Sorber outlet temperature sensor (TSA)
■
Process circuit flow temperature sensor (TPVL)
■
Process circuit return temperature sensor (TPRL)
Process control unit
Pt500
Cylinder temperature sensor
5
Fig. 62
Outside temperature sensor
X3
Fig. 63
Maintenance
Checking the temperature sensors
5678 044 GB
Maintenance
Summary of Contents for D2RA
Page 113: ...113 Maintenance Checking the Vitotronic 200 H accessories cont 5678 044 GB Maintenance ...
Page 133: ...133 Parts lists Sorption module hydraulics cont 5678 044 GB Components ...
Page 136: ...136 0001 0002 0003 0004 0005 Fig 83 Parts lists Miscellaneous 5678 044 GB Components ...
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