Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Burner Calibration; Adjustments Before First Firing - Riello 1301 T 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

Burner calibration

It is advisable to first set the burner for operating on oil and then
for gas.
Execute the fuel exchange when the burner is
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:
• Nozzles
See the information listed on page 18.
6.3

Adjustments before first firing

Adjustment of the combustion head has been illustrated on
page 19.
In addition, the following adjustments must also be made:
– Slowly open the manual valves situated upstream of the gas
train.
– Adjust the minimum gas pressure switch to the start of the
scale.
– Adjust the maximum gas pressure switch to the start of the
scale.
– Adjust the air pressure switch to the zero position of the
scale.
– Purge the air from the gas line.
Continue to purge the air (we recommend using a plastic tube
routed outside the building) until gas is smelt.
– Fit a U-type manometer or a differential pressure gauge
(Fig. 32), with the (+) fitting on the header gas pressure tap
and (-) fitting in the combustion chamber.
The manometer readings are used to calculate MAX. burner
power using the table on page 24.
– Connect two lamps or testers to the two gas line solenoid
valves to check the exact moment at which voltage is sup-
plied. This operation is unnecessary if each of the two sole-
noid 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-
CAUTION ery at the minimum.
20010305
Start-up, calibration and operation of the burner
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
• Combustion head
The adjustment of the combustion head already carried out
(page 19) need not be altered unless the 2nd stage delivery
of the burner is changed.
• Pump pressure:
In order to adjust pump pressure, use the relevant screw
5) (Fig. 22). See the information listed on page 18.
• Fan air gate valve
See adjustments page 32 (Servomotor).
D8367
28 GB
+
Fig. 32