Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Working; Choice Of Nozzles - Riello PRESS 30 N Installation, Use And Maintenance Instructions

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
WARNING regulations of the laws in force.
6.2

Working

6.2.1

Choice of nozzles

Nozzle
GPH (45° - 60°)
1,25 + 1,25
1,50 + 1,50
1,75 + 1,75
2,00 + 2,00
2,25 + 2,25
2,50 + 2,50
In case of very heavy oil it is advised to use high wear resistance
nozzles (for instance Monarch F 80 H0).
6.3

Combustion head adjustment

Turn the screw A, Fig. 11 till the set-point, detected from the
diagram, is on the line with the washer B, Fig. 11.
D2637
kg/h
20132157
Start-up, calibration and operation of the burner
20 bar 25 bar
kg/h kg/h
15,00 17,00
18,00 20,30
21,00 23,80
24,00 27,10
27,00 30,50
30,00 –
B
Set-point 4
A
Fig. 11
D2636
Set-point
Fig. 12
Check the correct working of the adjustment,
command and safety devices.
WARNING
6.2.2

Pump pressure

Advised pressure:
– Light oil: 20 bar
– Heavy oil: 25 bar (see modification kit)
Rated deliveries of the nozzles are indicated on the above list and
refer to a light oil having viscosity from 3 to 5°E at 50° C pre-
heated at 100°C.
The effective delivery may vary of ± 5% against the rated one. In
case of requirement of intermediate values, the pump pressure or
the nozzles match could be changed.
The pump is set by the factory set at 20 bar.
14 GB