PFU 780 · Edition 02.12l 26
Parameters
Interrupted pilot burner
t
1
2
ϑ1
ϑ2
88 02–04 06–08 02–04 06–08
The pilot burner is switched off during the main burner
safety time t
SA2
. This type of flame control is required if
no distinction can be made between the flame signals
of the pilot and main burners (e.g. if both burners can
be monitored with a single UV sensor). If the start-up
signal for the pilot burner is applied continually, the
pilot burner restarts immediately after the main burner
has been switched off.
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