Riello P 450 P/G Manuel D'entretien page 51

B - PUMP
Set by the factory at 25 bar.
C - STARTER
The starter is supplied at 230V or 400V according to the feeder line, for the adjustment of the temperature
relay see page 5.
When the burner is going to be put in operation, the installer has to carried out the following settings.
A - Maximum fuel delivery
B - Pressure controller
C - Combustion head
D - Air damper
A - ADJUSTMENT OF THE MAXIMUM FUEL DELIVERY
This adjustment is carried out by choosing the proper nozzle from the table here below.
Nozzle
type
N1 - 50°
450
400
360
330
300
275
250
225
If you desire a max. output intermediate between two values indicated in the table, it is useful to choose the nozzle
with higher delivery.
The output decrease could be obtained later, by acting on the pressure controller, see item B.
5483
ADJUSTMENTS NECESSARY TO THE BURNER
Maximum
delivery
kg/h
448
398
349
326
289
265
239
215
Fuel pressure in the
delivery line
manometer (2) fig.3
bar
25
25
25
25
25
25
25
25
GB
8
Fuel max. pressure in the
return line
manometer (3) fig.3
bar
17,2
18,0
18,0
18,0
18,0
18,0
18,0
18,0