Riello GI/EMME 1400, Manual

Page: 30 / 80

20162463 28 GB
Start-up, calibration and operation of the burner
6.1 Notes on safety for the first start-up
6.2 Adjustments prior to ignition (light oil)
The optimum calibration of the burner requires an analysis of the
flue gases at the boiler outlet and interventions on the following
points.
6.2.1 Nozzle
See information on page 18.
6.2.2 Combustion head
The adjustment of the combustion head already carried out on
page 19 need not to be altered unless the 2nd stage output of
the burner is changed.
6.2.3 Pump pressure
In order to change pump pressure, act on screw 5) (Fig. 4 on
page 11). See information on page 22.
6.2.4 Fan damper
Refer to the adjustment of the servomotor on page 30.
6.3 Burner ignition (light oil)
Position the selector 11)(Fig. 5 on page 12) on “ OIL ”.
When the limit thermostat (TL) is closed, the “ CALL FOR HEAT ”
3) request is sent.
At first ignition, there is a momentary drop in fuel pressure due to
the filling of the nozzle piping. This lowering of the fuel pressure
can cause the burner to lockout and can sometimes give rise to
pulsations.
If the burner locks out again, refer to chapter "Problems - Causes
- Remedies signalled by LED indicators” on page 43.
Once the following adjustments have been made, the ignition of
the burner must generate a noise similar to the noise generated
during operation.
6 Start-up, calibration and operation of the burner
ATTENTION
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
Check the correct working of the adjustment,
command and safety devices.
ATTENTION
Before starting up the burner, refer to section
"Safety test - with no gas supply” on page 38
ATTENTION
It is recommended to adjust first the light oil burner
and then the gas burner.
Carry out the fuel change with burner off.