Riello PRESS 140 P/N, Installation, Use And Maintenance Instructions

Page: 29 / 68

27 20170392 GB
Start-up, calibration and operation of the burner
7.1 Notes on safety for the first start-up
7.2 Adjustments prior to ignition
The optimum calibration of the burner requires an analysis of the
flue gases at the boiler outlet and interventions on the following
points.
7.2.1 Nozzle
See information on page 19.
7.2.2 Pump pressure
The pump leaves the factory set at 25 bar. It is activated by
loosening the vacuometer connection plug. See information on
page 24.
7.3 Maximum fuel flow rate adjustment
It is carried out by choosing the right nozzle in Tab. K:
Tab. K
NOTE:
25 bar for fluid oil - up to 30 bar for thick oil (viscosity

20°E
at 50°C).
If you want a maximum flow rate somewhere between the two
values shown in the table, select a nozzle with a higher flow rate.
Flow rate can be decreased at a later time by acting on the
pressure variator, as specified in
page 28.
7 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.
Model
Nozzle
BERGONZO
B5
Output
Maximum flow
rate
kg/h
Fuel pressure
at pressure gauge delivery
bar
Fuel maximum pressure at
pressure gauge return
bar
14
0
150 150 25 24.5
125 125 25 24.8
100 100 25 24
90 90 25 21
80 80 25 22.5
200
200 200 25 24
175 175 25 24.5
150 150 25 24.5
125 125 25 24.8
100 100 25 24
300
300 300 25 24
275 275 25 23.5
250 250 25 25
225 225 25 24
200 200 25 24
175 175 25 24.5
150 150 25 24.5
450
450 450 25 22.5
400 400 25 23.5
350 350 25 23.5
325 325 25 24
300 300 25 24
275 275 25 23.5
250 250 25 25
225 225 25 24
ATTENTION
To prevent clogging, remove the filter from the
nozzle.