DeDietrich NeOvo EcoNox EFU 22 User Manual page 18

5 Utilisation with the control panel B-Control
18 EFU
1. Put the boiler in frost protection mode. The standby function will be
deactivated.
The boiler will then only start up to protect itself from frost.
Note
To prevent the radiators and the installation from freezing in pla­
ces where that risk exists (e.g. in a garage or an equipment room),
we recommend the connection of an outside temperature sensor
to the boiler.
If the temperature of the water in the boiler falls too much, the integrated
protection device switches itself on. This device functions as follows:
If the water temperature is lower than 7°C, the circulation pump starts
up.
If the water temperature is lower than 4°C, the boiler starts up.
If the water temperature is higher than 10°C, the boiler shuts down and
the circulation pump continues to run for a short time.
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