20141254
14
GB
Installation
5.8
Hydraulic systems
5.8.1
Pump
The pump is designed to allow working with two pipes.
In order to obtain one pipe working it is necessary to unscrew the
return plug 2)(Fig. 8), remove the by-pass screw 3) and then
screw again the plug 2).
Key (Fig. 8)
1
Gas oil suction line
2
Return line plug
3
By-pass screws
4
Manometer connection
5
Pressure adjuster
6
Vacumeter connection
7
Gas oil solenoid
8
Auxiliary pressure test points
Explosion danger due to fuel leaks in the pres-
ence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel interception tap is closed be-
fore performing any operation on the burner.
WARNING
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
WARNING
Before starting the burner, make sure that the tank
return line is not clogged.
Obstructions in the line could cause the sealing
organ located on the pump shaft to break.
WARNING
The suction plug 1) is made of plastic. Once
removed, it must not be used again.
In single-pipe installations, the plug in the re-
turn line 2) must be totally in steel.
WARNING
Where light oil containing bio diesel is in use, it is
recommended to avoid over oxygenation of the
blended fuels.
Where at all possible avoid the use of two-pipe
systems where the circulated fuel is returned to
the tank.
If this cannot be avoided make sure that the return
pipe is normally below the surface of the fuel level
within the storage tank.
WARNING
In case of use with light oil containing up to 10%
bio blend, it will be essential to use flexible oil lines
suitable for biofuel use.
Please contact the manufacturer for further infor-
mation.
WARNING
Check periodically the flexible pipes conditions.
If necessary, install a filter on the fuel supply line.
WARNING
In case of use with light oil containing bio blend, it
will be essential to use flexible oil lines suitable for
biofuel use.
Please contact the manufacturer for further infor-
mation.
Fig. 8
7
6
5
4
3
2
1
D9630
8
