Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Adjustments Prior To Ignition (Heavy Oil); Nozzle - Riello ENNE/EMME 1400 Manual

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
regulations of the laws in force.
ATTENTION
6.2

Adjustments prior to ignition (heavy oil)

It is recommended to adjust first the heavy oil
burner and then the gas burner.
Carry out the fuel change with burner off.
ATTENTION
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 20 need not to be altered unless the 2nd stage output of
the burner is changed.
6.3

Burner ignition (oil fuel)

Position the selector 16)(Fig. 5 on page 12) on "OIL".
When the limit thermostat (TL) is closed, the request is sent and
the burner begins the starting cycle.
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.
Start-up, calibration and operation of the burner
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 37.
ATTENTION
6.2.3

Pump pressure

Factory-set at 25 bar. See information on page 23.
6.2.4

Air damper

Refer to the adjustment of the air damper on page 18.
6.2.5

Timer

Sets pre-wash stage duration and is factory-set between 15 and
20 seconds (For heavy oil, see conversion kit).
6.2.6

Servomotor

Refer to the adjustment of the servomotor on page 31.
29 GB
20176605