Table of Contents
Advertisement
4.12.3 Priming pump (example)
Before starting the burner, make sure that the tank
return line is not clogged.
Obstructions in the line could cause the sealing
ATTENTION
organ located on the pump shaft to break.
In order for the pump (Fig. 23) to be able to self-prime, the
screw 4) must be loosened to purge the air in the suction
line.
Start the burner by closing the remote controls. As soon as
the burner starts, check the direction of rotation of the fan
blade.
The pump can be considered to be primed when the light oil
starts coming out of the screw 4).
Close the burner and undo the screws 4).
The time required for this operation depends upon the diameter
and length of the suction tubing.
If the pump fails to prime at first start-up and the burner locks out,
wait approx. 15 seconds, reset the burner, and then repeat the
start-up operation. And so on.
After 5 or 6 starting operations allow 2 or 3 minutes for the
transformer to cool.
Do not light the flame sensor in order to prevent the burner
lockout; the burner locks out in any case about ten second after
its start.
The above-mentioned operation is possible
because the pump is already full of fuel when it
leaves the factory.
ATTENTION
If the pump has been drained, fill it with fuel
through
the
3)(Fig. 23) prior to starting; otherwise, the pump
will seize.
Whenever the length of the suction piping
exceeds 20-30 meters, the supply line must be
filled using a separate pump.
opening
on
the
vacuometer
Installation
D11321
Key (Fig. 23)
1
Suction line
2
Return line
3
Vacuometer connection
4
Pressure gauge connection
5
Pressure adjuster
21
GB
Fig. 23
20184914
Advertisement
Table of Contents
