5829
3
GB
3.
INSTALLATION
3.1
FUEL OIL GRAVITY FEED SYSTEMS
GRAVITY SYSTEM
SUCTION SYSTEM
RING SUPPLY
H
meters
L meters
ø 1”
ø 1 1/4”
0
6
10
0.5
11
17
1
16
24
1.5
21
31
2
26
38
Priming pump:
loose the tap of the vacuometer plug (5,
fig. 1) and wait for the fuel flow.
H
: Difference in the pipes height
L
: Length of the suction pipe
For fuel oil with viscosity max. 7°E at 50°C.
D2687
H
meters
L meters
ø 1 1/4”
ø 1 1/2”
0
22
45
0.5
19
39
1
16
33
1.5
13
27
2
10
21
2.5
7
15
3
0
8
Not advised, to be used only in
case of previously existing sys-
tem.
Never overcome the max. depres-
sion of 0.5 bar (38 cm Hg).
With higher values the fuel emanates
gas. The pipes shall be perfectly
sealead. When the tank is placed be-
low of the burner level, the return
pipe should reach the same level of
the suction pipe. In this case the foot
valve is not required.
For fuel oil with viscosity max. 7°E at 50°C.
D2688
1
- Tank (properly heated for heavy oil)
5
- Forwarding pump
2
- Filter (with resistance for oil > 7°E / 50°C)
6
- Manometer
3
- Burner (with kit for heavy oil)
7
- Burner pump
4
- Couple of cocks (excluding the burner)
8
- Pressure adjuster
For heavy oil with viscosity up to 65°E / 50°C.
Notice
: all the pipes have to be properly seized, sealed and heated (elec. resistance or hot steam or water) to let
the fuel flow.
Warning
: before to put the burner in operation verify that no obstruction exists into the pipes, any obstruction
may damage the sealing of the pump.
D2689
