Hydraulic Diagram; Control Box Specifications - First Filling Up Of Pipelines - baltur BT 250 DSG Betriebsanleitung

1 Valve normally open
2 Valve normally open
3 Return
4 Suction
5 Foot valve
6 Pump (16 bar)
7 1st flame pressure
regulator (10 bar)
8 Regulating screw
9 Air regulation servomotor
10 2nd flame Valve 13 bar
11 1st flame Valve 7 bar
12 nozzle
Safety time
Control box
in seconds
e relative
programmer
LAL 1.25
Cyclic relay
FIRST FILLING UP OF PIPELINES
After having checked that the protective plastic caps inside the pump fittings have been removed, proceed as
follows:
1) Put the switch on the burner in the "0" position. This operation prevents the automatic connection of the
burner.
2) If the burner is there-phase, make sure that the motor rotates in an anti-clockwise direction, by observing the
burner from the pump side. This can be controlled by looking at the sense of rotation of the fan through the
spy hole situated on the back of the scroll. To start up the motor, close manually the relay (by pressing on the
mobile part) for a few seconds and watch the sense of rotation of the fan. It is necessary to change the sense
of rotation, invert two phases of the line input terminals (L1 - L2 - L3).
Note: Wait until the fan is moving very slowly before trying to ascertain the sense of direction; it is possible to
misinterpret it.
3) Detach, if already attached, the flexible pipes from the suction and return pipelines.
4) Emerge the end of the flexible suction pipe in a tin containing either lubrification oil or fuel oil (do not use low
viscosity products such as light oil, crude oil, petrol, kerosene, etc.).
5) Now press on the mobile part of the motor's relay in order to start up the motor and thereby the pump.
Wait until the pump has sucked in an amount of lubrificant equal to 1 or 2 glassfuls. This operation will
prevent the pump from operating dry and will increase the suction power.
Note: Pumps operating at 2800 RPM must not work dry otherwise they will jam (seizure) within a short time.
6) Now attach the flexible pipe to the suction pipeline and open any gate valves or any other type of fuel cut-off
device fitted on this pipeline.
7) Press again on the mobile part of the motor's relay to start the pump which will suck fuel from the cistern.
When fuel is seen coming out of the return pipe (not yet connected), stop.
Note: If the pipeline is long, it may be necessary to bleed air from the air bleed plug. If the pump is not fitted
with one, remove the plug from the manometer connection point and bleed air through it.
8) Connect the flexible return pipe to the pipeline and open any gate valves fitted on this pipeline. The burner is
now ready to start up.

HYDRAULIC DIAGRAM

CONTROL BOX SPECIFICATIONS
Pre-ventilation &
pre-washing time
in seconds
5
22,5
28
Time between 1st
Post-ignition time
in seconds and 2nd flame
15
N° 0002900600
REV.: 27-11-02
in seconds
7,5