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3.
INSTALLATION
3.1
FUEL OIL SUPPLY SYSTEMS
GRAVITY SYSTEM
For fuel oil with viscosity max. 7°E at 50°C.
SUCTION SYSTEM
For light fuel oil with viscosity max. 7°E at 50°C.
LOOP SYSTEM (max loop system 3 bar)
For heavy oil with viscosity up to 50°E/50°C.
1 - Tank (properly heated for heavy oil)
2 - Filter (with resistor for oil > 7°E / 50°C)
3 - Burner
4 - Air dampers for excluding burner (coupled)
Notice: to ensure proper fuel flow all the pipes have to be properly sized, insulated and heated. (elec. re-
sistor or steam or hot water).
Warning: before starting up the burner make sure that there is no obstruction in the pipes,
any obstruction may damage the sealing of the pump.
6202
Pump priming:
loosen the cap of the vacuometer fitting
(5, fig. 1) and wait for the fuel flow.
H: Difference in height
L: Length of the suction tube
D2720
Not advised, to be used only if there is a
previously existing system.
Never exceed the max. vacuum 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 of the suction pipe.
In this case the foot valve is not required.
5 - Transfer pump
6 - Manometer
7 - Burner pump
8 - Pressure adjuster
GB
3
L metres
H
diam.
diam. 1
metres
1" gas
1/4" gas
0
6
10
0.5
11
17
1
16
24
1.5
21
31
2
26
38
L metres
H
diam. 1
diam. 1
metres
1/2"
1/4" gas
0
22
45
0.5
19
39
1
16
33
1.5
13
27
2
10
21
2.5
7
15
3
0
8
D2631
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