Installation; Fuel Oil Supply Systems - Riello PRESS 30 N/ECO Instrucciones De Instalación, Uso Y Mantenimiento

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3.

INSTALLATION

3.1

FUEL OIL SUPPLY SYSTEMS

GRAVITY SYSTEM
For light oil with max. viscosity 7°E at 50°C.
SUCTION SYSTEM
For light oil with max viscosity 7°E at 50°C.
LOOP SYSTEM (max loop system pressure 3 bar)
For heavy oil with viscosity up to 20°E / 50°C.
1 - Tank (heated for heavy oil)
2 - Filter (with resistor for oil > 7°E / 50°C)
3 - Burner
4 - Burner cut-out gate valves (coupled)
Important note: to allow the fuel to flow properly, all the pipes have to be properly sized, insulated and heat-
ed (electrically or by means of steam or hot water).
Warning: before using the burner, make sure that there is no obstruction in the return pipe,
any obstruction may damage the sealing of the pump.
6200
Pump priming:
loosen the tap from the vacuometer fitting
(5, fig. 1) and wait for the fuel to flow out.
H: Difference in height
L: Length of the suction tube
D2720
Not advised. To be used only in case of
previously existing system.
Never exceed the max. vaccum of 0.5 bar
(38 cm Hg) measured at the vacuometer
fitting (5, fig. 1).
The pipes should be perfectly airtight.
When the tank is placed below of the burn-
D2721
er level, the return pipe should arrive at the
same level as the suction pipe.
In this case the foot valve is not required.
5 - Transfer pump
6 - Control manometer
7 - Burner pump
8 - Pressure adjuster
3
GB
L metres
H
Diam.
Diam.
metres
3/4"
1" gas
0
5
10
0.5
8
15
1
11
20
1.5
14
25
2
17
30
L metres
H
diam. 1
diam.
metres
1/4"
1" gas
0
24
45
0.5
21
40
1
18
35
1.5
15
30
2
12
25
2.5
9
20
3
6
15
D2631

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