DESCRIPTION
The 501 EFD automatic direct burner
ignition (DBI) unit has been designed for
atmospheric and fan assisted burners
which require non volatile lock-out.
This SIT Flame Failure Device is a solid
state controller based on the well known
and proven rectification effect of flame
ionization.
A suitable design and a special compo-
nents selection has allowed SIT to obtain
a wide temperature range from -20 to +
80 °C.
Applications
The 501 EFD provides automatic ignition
control with non volatile lock-out for
intermittent operation in accordance
with EN 298 for:
- Atmospheric burners
- Fan-assisted boilers,
including dynamic air check
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