Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Adjustments Prior To Ignition; Nozzle - Riello DB 12 LM C10 Installation, Use And Maintenance Instructions

5

Start-up, calibration and operation of the burner

5.1

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 regula-
tions of the laws in force.
WARNING
5.2

Adjustments prior to ignition

Carry out the fuel change with burner off.
WARNING
The optimum calibration of the burner requires an analysis of the
flue gases at the boiler outlet and interventions on the following
points.
5.3

Servomotor adjustment (SQM 40)

The servomotor (Fig. 23) adjusts at the same time by means of
returns, flow and air pressure, and the fuel flow in use. Completes
a rotation of 90° in 30 s. After the adjustment made in the factory
to its 6 cams to allow an initial ignition. Check that they are as
shown below. In the event of a modification, follow what is de-
scribed below for each cam:
Cam I (RED): 135° (The same for all models)
Limits the rotation towards the maximum.
Do not make any adjustments.
DANGER
Cam II (BLUE): 0° (The same for all models)
Limits the rotation towards the minimum.
With the burner switched off, the air damper is com-
pletely closed: 0 °
It is recommended that no adjustments are made.
WARNING
Cam III (ORANGE): not used
Cam IV (YELLOW): not used
Cam V (BLACK): 20° (The same for all models)
Adjusts the position of ignition and minimum output of
fuel
Cam VI (GREEN): 130° (The same for all models)
Adjusts the position of maximum output of fuel
Start-up, calibration and operation of the burner
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
5.2.1

Nozzle

See information on page 17.
5.2.2

Combustion head adjustment

See information on page 16.
20074577
21 GB
Fig. 23
20198588