Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Adjustments Prior To Ignition; Positioning The Pilot Electrode - Riello DB 9 SM C03 TC A0 FS1 T250 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

Adjustments prior to ignition

In addition, the following adjustments must also be made:
➤ Slowly open the manual valves situated upstream from the
gas train.
➤ Adjust the minimum gas pressure switch (Fig. 31) to the start
of the scale.
➤ Adjust the maximum gas pressure switch (Fig. 30) to the end
of the scale.
➤ Adjust the air pressure switch (Fig. 29) to the start of the
scale.
➤ Purge the air from the gas line.
We recommend using a plastic tube routed outside the build-
ing and to purge air until gas is smelt.
➤ Fit a U-type pressure gauge or a differential pressure gauge
(Fig. 23), with socket (+) on the gas pressure of the pipe
coupling and (-) in the combustion chamber. The manometer
6.3

Positioning the pilot electrode

Position the electrode as shown in Fig. 24.
WARNING
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Start-up, calibration and operation of the burner
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
readings are used to calculate MAX burner output.
➤ Connect two lamps or testers to the two gas line solenoids to
check the exact moment in which voltage is supplied. This
operation is unnecessary if each of the two solenoid valves
is equipped with a pilot light that signals voltage passing
through.
Before starting up the burner, it is good practice to
adjust the gas train so that ignition takes place in
conditions of maximum safety, i.e. with gas deliv-
ery at the minimum.
CAUTION
20127018
D3899
24 GB
Fig. 23
Fig. 24