Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Burner Ignition; Operation - Riello RL 190/M Installation, Use And Maintenance Instructions

6

Start-up, calibration and operation of the burner

6.1

Notes on safety for the first start-up

The first start-up of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and
regulations of the laws in force.
ATTENTION
6.2

Burner ignition

Before starting the burner, make sure that air and fuel adjustment
devices can be activated; loosen screws 4) of cam 2)(Fig. 31 on
page 27), loosen nut and lock nut 5)(Fig. 31 on page 27) and the
two screw 8)(Fig. 31 on page 27) of the pressure variator unit and
eccentric (Fig. 30 on page 27).
Turn off the remote controls and set the switch 1)(Fig. 27) to
"MAN".
The burner starts up and, after the pre-purging phase, the flame
ignites.
6.3

Operation

The optimum adjustment of the burner requires an analysis of
flue gases at the boiler outlet.
The adjustments that have already been performed and
generally do not need variations are:
 Combustion head
 Servomotor, cams I - II - III - IV - V
Whereas the following must be adjusted one after the other:
1 MAX burner output;
2 MIN burner output;
3 Intermediate outputs between the two.
Using the pressure-output diagram relating to the nozzles with
return lines, see Fig. 28 and Fig. 29, it is possible to define the
size of the nozzle to be used based on the maximum output of the
fuel to be burnt and, consequently, the fuel minimum and
maximum pressure can be defined on the return line of the nozzle
based on the corresponding modulation minimum and maximum
output.
20166451
Start-up, calibration and operation of the burner
Check the correct working of the adjustment,
command and safety devices.
ATTENTION
Bergonzo nozzle type A3 (45°)
Return line pressure bar
Bergonzo nozzle type A4 (45°)
Return line pressure bar
26 GB
1 2
D791
Fig. 27
D1982
Fig. 28
D1983
Fig. 29