Lamtec ETAMATIC, Quick Reference, Page: 15 / 26

14
7 Internal Burner Firing Rate Controller
7.4 Manual Control
It is also possible to switch the ETAMATIC to "Manual Control" with the terminals. By short-
circuiting the Pt100 signal (e.g. bridge terminal 19 and 20) the burner firing rate controller is
switched off. The fuel/air ratio controller then directly follows the input at the default firing rate
input. The display shows LE instead of HA.
NOTICE
Only use manual control while monitoring the system.
7.5 Meaning of the Display
Press key MANUAL to move the regular firing rate input of the firing rate controller.
Press the keys 2 and 3 to variegate the burner firing rate.
Press key MANUAL again to cancel firing rate controller.
Display in "FIRING RATE" switch position
setpoint actual value regular firing
rate input internal

firing rate
Display in mode "MANUAL"
regular firing
rate input

(via channel 1)
internal firing

rate
actual value