Lamtec ETAMATIC - Minimum Running Time of the Fuel;Air Ratio Control; Post-Purge Time; Delaytime of the Air Dampers During Pre-Purge

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5 Commissioning
5.1.12 Minimum Running Time of the Fuel/Air Ratio Control
Select parameter no. 729
5.1.13 Post-purge Time
Select parameter 758
5.1.14 Delaytime of the Air Dampers During Pre-purge
Select parameter no. 768.
Nr. FMS ETA Short Text Description Min Max Default
729 1 2 stopVERB Minimum running time of fuel/air ratio control 10 999 10
Minimum running time of the fuel/air ratio control (in
seconds)
Set the minimum running time of the fuel/air ratio control
in seconds. This parameter slows down the ramp-up
time or ramp-down time of the burner from base firing
rate to high firing rate.
Nr. FMS ETA Short Text Description Min Max Default
758 1 1 ZEIT NA Post-purge time 0 1000 0
Post-purge time (in seconds)
0 = no post-purge
1000 = continuous purge (from 5.0 on)
Set the duration, how long the VMS/FMS/ETAMATIC
purges after a switch OFF. The air flaps were open for
this purpose. A fan output runs to 20mA. The FMS/ETA-
MATIC holds the release signal of the fan.
No post purge occurs if the parameter content is 0 and
in the case of a fault shutdown.
The actuators are not monitored in post purge mode!
The actuators only open when the flame is extin-
guished. The time begins to run immediately with clos-
ing of the magnetic valves. It may be necessary to add
this post burn time to the required post purge time
Nr. FMS ETA Short Text Description Min Max Default
768 1 2 KverznLE Damper delay after fan ON in seconds 0 15 5
Delay time for flaps after switching ON the fan in sec-
onds (only for FAT)
Enter a delay time for opening of the flaps with respect
to the ventilator release. This prevents from increasing
the power consumption of the purge motor in the star/
delta starting phase (only effective for FMS and ETAMA-
TIC).
(from 5.4 / 52201 on)
This parameter affects even with continuous purge.