Failure Signals Via The Celcia 20 Display; Failure Signals Via The Failure Relay - REMEHA Celcia MC4 Manuel D'installation Et D'utilisation

Failure code Description
The installation flow temperature is
210
below 0°C or above 100°C.
No communication between Celcia MC4
211
and one or more boilers.
212 Boiler is not suited for Celcia MC4 control.
Outside temperature sensor measuring value no
213
longer within the limits.
See the manual of the Celcia 20, the boiler or of
Other numbers
other connected components.

3.1.2 Failure signals via the Celcia 20 display

If the regulator is controlled via the Celcia 20, the code of any
failure occurring can be read from the Celcia 20 display. Any
boiler failures are also transmitted.
Check / solution
Check if the common flow
temperature sensor is properly
connected.
Measure the sensor resistance
value, see table 04.
Check the wiring.
Is one of the boilers off?
Contact Remeha.
Check the wiring.
Measure the sensor resistance
value, see table 04.
table 05 Failure signals via the Celcia 20 display
The Celcia 15 regulator can only display failure codes up till
99. In case a higher code occurs, a flashing f will be dis-
played.

3.1.3 Failure signals via the failure relay

If a failure occurs or if there is a failure in the power supply to
the Celcia MC4, connect the fault contact between terminals
17 and 19 (with a 1 minute time delay and directly in case of
failure in the power supply). This contact can be used to con-
trol such things as a light, a buzzer or a failure signal.
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