BCU 480 · Edition 03.16l
35
Parameters
4 .2 .6 UVS check
Parameter 35
An automatic restart of the burner control unit can be
activated every 24 hours via this parameter. The time
starts each time the start-up signal (
ϑ
) is applied.
Parameter 35 = 0: Unlimited burner operation.
Parameter 35 = 1: An automatic restart is activated
once every 24 hours.
It must be ensured in this case that the program se-
quence started matches the application. This param-
eter may be set in this way only if the burner can restart
as intended in all operating phases.
UV sensor for intermittent operation
For intermittent operation, the operating state of the
complete system is limited to 24 h pursuant to EN 298.
To meet the requirement for intermittent operation, the
burner is shut down and restarted automatically after
an operating time of 24 hours. The restart does not
meet the requirements of EN 298 for UV sensor con-
tinuous operation because the required self-test (at
least once per hour) is not performed while the burner is
operating.
This shut-down and subsequent restart are performed
in the same way as a normal controlled shut-down. This
process is controlled independently by the BCU and
therefore it must be checked whether the industrial
process permits the pause in heat supply it creates.