35
6 Commissioning
Potentiometer adjustment values (approximate)
6.5 Programming of Curves
6.5.1 Programming of Fuel/Air Ratio Control
NOTICE
Final programming of the unit with the burner stationary can only be done when it is certain
that all feedback signals are present in the same way as when the burner is in operation (e.g.
not temperature-dependent or active speed feedback). Otherwise programme when burner is
in operation.
NOTICE
Programming can only be performed with specified modes. Otherwise the unit registers a fault
and will accept no inputs. It may be necessary to wait for the automatic combustion sequence
control to release the control before programming when the burner is in operation (via mode
’EV’, ’EZ’, ’EG’).
If burner locks out whilst programming in process e.g. owing to control shut-off
see chapter 8.1.4 Proceed with Programming
If FMS skips to ’ES’ mode whilst programming is in progress
see chapter 8.1.4 Proceed with Programming
Pot Lower stop
*
* provided that potentiometer r.p.m. range is fully utilised
Upper stop *
5 k 80 920
1 k 200 800
Select fuel
either with stationary burner
Signal on terminal 2 (BURNER ON)
or
with burner in operation:
Signal on terminal 2 (boiler thermo-
stat)
Wait until burner is on
= 0 Display AU
= 1