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ENGLISH
FIRST FILLING UP OF PIPELINES
After making sure that protective plastic caps inside the pump fittings have been removed, proceed as follows :
1) Set the burner switch on “0”.This operation prevents automatic connection of the burner.
2) With a three-phase burner make sure that the motor rotates counter-clockwise, looking at the burner from the
pump end.The direction of rotation can be determined by observing the direction of rotation of the fan through
the port-hole on rear of the fan scroll. To start the motor, close the remote control switch manually (pressing on
the mobile part) for a few seconds and watch the direction of the rotation of the fan. Of it is necessary to reserve
the direction of rotation, invert two phases on line input terminals ( L1 - L2 - L3 ).
Remark :To positively determine the direction of rotation, wait until the fan turns very slowly because it is quite
possible to misinterpret direction of rotation.
3) Disconnected, if already connected, the flexible pipes from both suction and return lines.
4) Dip the end of the suction flexible pipe into a vessel containing either lubrification oil or fuel oil (do not use low
viscosity products such as gas-oil, light oil, kerosene. etc).
5) Now press on the mobile part of the motor remote control switch to start up the motor and the pump. Wait until
the pump has sucked in an amount of lubrificant equal 1 or 2 glasses, then stop. This operation will prevent the
pump from operating dry and will increase the suction power.
Remarks: Pump operating at 2800 r.p.m. must not work dry otherwise they will jam (seizure) within a very short
time.
6) Now connect the flexible pipes to the suction line and open all the gate valves fitted on this line and any other
similar fuel cut-off device.
7) Now press again on the mobile part of the motor remote control switch to start up the pump which will suck fuel
from the tank. When fuel is seen coming out of the return line (not yet connected), stop.
Remarks: If the pipe is long, it may be necessary to bleed the air out through the cap; if the pump is not fitted with
a breather cap, remove the cap from the pressure test point.
8) Connect the return flexible pipe to the return line and open the valves fitted in this pipe. Now the burner is ready
for lighting up.
STARTING UP AND REGULATION
(see BT 8614 - BT 8711/1 - Bt 8653/1)
Before starting up the burner make sure that :
a) Feeding line connections to thermostats or pressure switches are made exactly according to electric diagram of
the control box.
b) Check if there is fuel in the tank and water in the boiler.
c) All the gate valves fitted on the fuel oil suction and return pipes should be open; the same thing applies to any
other fuel cut-off device.
d) Make sure that discharge of combustion products takes place freely (boiler and chimney gate valves open).
e) Make sure that burner head project into the combustion chamber according to the manufacturer’s directives.
For compliance with this requirement, the burner is equipped with a boiler mounting flange, which slides in
respect to the combustion head.
f) The nozzles fitted on the burner should match the boiler capacity but, if necessary, replace them with others.
Under no circumstances should the amount of delivered fuel be higher than the maximum amount required by
the boiler and the max. amount permitted for the burner. Remember that the combustion head is designed for
nozzles with a 45° spray angle.
Remarks: For efficient starting up and good combustion with the 1st flame alone, fuel delivery rate should not be
considerably lower than the minimum delivery rate (shown on the name-plate) for each specific burner.
To start the burner proceed as follows:
Note: The burner in D.A.C.A. version are provided with switch to change from 1st to 2nd stage.
1) Disconnect, where fitted, the thermostat connection to prevent the 2nd flame from igniting.
2) Slightly open the air shutter and let in an amount of air deemed to be necessary for burner operation with the 1st
flame and fix it in this position; set the air control device in an intermediate position on the combustion head (see
the chapter “Air control on the combustion head”).
3) Close the isolating switch and control box switch.
