Riello P 140 P/G Installation, Use And Maintenance Instructions page 47

B - PUMP
Set by the factory at 25 bar.
C - MOTOR OVER LOAD RELAY
Set by the factory for the three-phase electric supply 400V. Should the electric supply be three-phase 230V the
setting has to be modified as indicated at 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°
145
130
115
100
90
80
70
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.
5480
ADJUSTMENTS NECESSARY TO THE BURNER
Maximum
delivery
kg/h
140
130
115
100
90
80
70
Fuel pressure in the
delivery line
manometer (2) fig.3
bar
25
25
25
25
25
25
25
7
GB
Fuel max. pressure in
the return line
manometer (3) fig.3
bar
17,5
18
18
18
18
18
18