Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Combustion Adjustment; Combustion Head Setting - Riello BS2F 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 regula-
WARNING tions of the laws in force.
6.2

Combustion adjustment

The application of the burner to the heat generator, adjustment
and testing must be carried out observing the instruction manual
of the boiler, including verification of the CO and CO
tion in the flue gases, their temperatures and the average temper-
ature of the water in the generator.
6.3

Combustion head setting

The combustion head leaves the factory set at set point 4.
Setting depends on the output of the burner.
➤ Rotate the setting screw 6)(Fig. 12) in a clockwise or anti-
clockwise direction until set point marked on the regulating
rod 2) is level with the outside plane of the head
assembly 1).
➤ Fig. 12 shows the head regulating rod set on set point 3.
Example:
The burner is installed in a 85 kW heat generator.
Taking an efficiency level of 90% the burner should give an out-
put of app. 94 kW with the regulating rod set at set point 4 as
shown in the diagram.
The diagram is for indication purposes: to assure good working
from the burner we suggest adjusting the combustion head ac-
cording to the heat generator.
6.3.1

Removing the head assembly

Proceed as follows to remove the head assembly:
➤ Disconnect the connections 3) and 5)(Fig. 12) and loosen
the screws 10).
➤ Unscrew and remove the screws 7), pull out the head
assembly support 1) turning it slightly to the right.
➤ Take care not to change the setting position on the elbow-
bracket 2) during dismantling.
6.3.2

Reassembling the head assembly

Follow the above instructions in reverse, returning the head as-
sembly 1)(Fig. 12) to its original position.
Tighten the screws (7) completely (without locking
them); then lock them with a torque wrench setting
of 3 - 4 Nm.
WARNING
Check there are no gas leaks from the screws dur-
ing these operations.
20071805
Start-up, calibration and operation of the burner
concentra-
2
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
To suit the required appliance output, choose the proper setting
of the combustion head, and the air damper opening.
20075623
Kcal/h kW
15 GB
Fig. 12
20073327
Set point
Fig. 13