22
CONTROLS IN CASE OF OPERATION PROBLEMS
LIGHT OIL BURNER
MODEL OR3/B
Extraneous light / advanced ignition
During the pre-ventilation and/or pre-starting
phase there shall be no flame signal. Should the
signal be present, for example for advanced
ignition due to bad tightness of the electrovalve,
external lighting, short-circuit in the photo-
resistance or in the connecting cable, a breakdown
in the flame signal amplifier, and so on., when the
pre-ventilation and safety time has elapsed, the
control-box brings the burner to the emergency
stop and cuts off fuel inflow even during the safety
time.
No flame
If there is no flame at the end of the safety time,
the control-box stops the burner immediately.
No flame during operation
If there is no flame during operation, the control-
box cuts off fuel and automatically repeats a new
starting program.
Every safety stop of less than 1 second switches
off voltage to terminals 4 - 5 and 7: in the same,
by means of terminal 10, it is possible to provide
a remote signal of emergency stop. Resetting of
the control-box is possible after approx. 3 seconds
of emergency stop.
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Legend
OR 3/B
