Operation; Choice Of Nozzles; Pump Pressure; Adjustment Of The Air Damper Motor - Riello PRESS 100 N/ECO Manuel D'entretien

4.

OPERATION

4.1

CHOICE OF NOZZLES

Recommended nozzle:
- Monarch F 80 H0.
4.2

PUMP PRESSURE

Recommended pressure:
- Fluid oil: 20 bar
- Heavy oil: 25 bar
The flow rated of the nozzles indicated on the tables are
nominal, and are obtained for a light fuel oil having viscosity
from 3 to 5°E at 50° C pre-heated at 100°C. The actual flow
rate may vary by ± 5% of the nominal flow rate.
if flow rate values between those indicated in the table are
required, it is possible to vary the pump pressure or arrange
the nozzles differently.
The pump leaves the factory set at 20 bar.
4.3 COMBUSTION HEAD ADJUSTMENT
Turn the screw A, fig. 2 till the set-point, shown in the diagram,
is in line with the sleeve B, fig. 2.
Fig. 2
D2637
4.4

ADJUSTMENT OF THE AIR DAMPER MOTOR

PARKING - Blue lever
This lever leaves the factory vertically positioned and corre-
sponds to the complete closure of the air damper.
A partial opening of the air damper might be obtained by
moving this lever leftwards (+ on the plate).
The new position of the air damper is detectable when the
burner is off.
Do not exceed the position of the orange 1
st
1 STAGE - Orange lever
The orange lever controls the air damper position for the first
flame, it is adjustable both for opening and closing.
nd
2 STAGE - Red and black levers
The red lever controls the air damper position for the second
flame, it is adjustable both for closing and opening.
The black lever controls the opening of the second oil valve
and it must always be slightly earlier than the red lever, but
never the orange one.
6195
B
Set-point 4
A
st
stage lever.
7
Nozzle
GPH (45° - 60°)
3.50 + 3.50
4.00 + 4.00
4.50 + 4.50
5.00 + 5.00
5.50 + 5.50
6.00 + 6.00
6.50 + 6.50
7.00 + 7.00
7.50 + 7.50
8.00 + 8.00
8.50 + 8.50
kg/h
Black lever
Red lever
Orange lever
Blue lever
Opening +
GB
20 bar 25 bar
kg/h kg/h
42.00 47.40
48.00 54,20
54.00 61.00
60.00 67,80
66.10 74.50
72.10 81.40
78.10 88.10
84.10 95.00
90.10 101.60
96.10 –
100.00 –
D2712
Set-points
D2638
– Closure