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FIRST FILLING OF HYDRAULIC CIRCUIT
After checking that the protective plastic caps on the pump fittings
have been removed, proceed as follows:
• Turn the switch on the burner to the “O” position to avoid the burner
automatic activation.
• Make sure, in case of a three-phase burner, that the motor revolves
anti-clockwise when watching it from the pump side. The rotation
direction can be determined also looking at the direction of fan
rotation through the inspection window on the back of the scroll.
To start up the motor, close the remote control switch manually
(by pressing on the mobile part) for a few seconds and watch the
sense of rotation of the fan. If it is necessary to change the direction
of rotation, invert two phases of the line input terminals (L1_L2_L3)
• Of it is necessary to reserve the direction of rotation, reverse two
phases on line input terminals contactor motor K1.
DANGER / CAUTION
To positively determine the direction of rotation, wait until the
fan turns very slowly because it is quite easy to misinterpret the
direction of rotation.
• Detach, if already attached, the flexible hoses from the intake and
return pipes.
• Dip the end of the suction hose into a vessel containing either
lubrication oil or diesel (do not use low viscosity products such as
petrol, kerosene, etc.).
• With fuel switch set to "OIL", move the on/off switch to position "I":
the programmer will thus start the burner.
• Wait until the pump has sucked an amount of lubricant equal to 1
or 2 glasses, then stop.
• This operation will prevent the pump from operating dry and will
increase the suction power.
DANGER / CAUTION
Pump operating at 2800 r.p.m. must not work dry otherwise
they will jam (seizure) within a very short time.
• Attach the flexible hose to the intake pipe and open any gate valves
fitted on this pipe and any other shut-off element on the fuel pipes.
• Return the on-off switch to position "I" to operate the burner and,
consequently, the pump will suck fuel from the tank. When fuel is
seen coming out of the return line (not yet connected), stop.
DANGER / CAUTION
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 cap, remove the
pressure gauge connector cap.
• Connect the return flexible hose to the return pipe and open the
gates fitted on this pipe. Now the burner is ready for lighting up.
STARTING UP AND REGULATION
Before starting up, make sure that:
• The correct type of fuel has been selected.
• Connections to the supply line, to thermostats or pressure
switches, have been made according to the electrical diagram of
the equipment.
• Check if there is fuel in the tank and water in the boiler.
• All the gate valves fitted on the fuel oil intake and return pipes are
open, as well as any other shut-off element on the fuel pipes.
• Make sure that discharge of combustion products takes place
freely (boiler and flue shutter open).
• Check that combustion head penetrates the combustion chamber
by the measure requested by the manufacturer of the boiler.
Check that the air closure device on the combustion head is in the
right position to guarantee a correct combustion, the air passage
between disk and head must be slightly reduced if a relatively small
amount of fuel is supplied. When the fuel supply is abundant the air
passage must be increased, see chapter "COMBUSTION HEAD
ADJUSTMENT”.
• Check that the nozzles fitted on the burner are suitable for the
boiler capacity. If necessary, replace them with suitable ones. In
no case should the quantity of fuel delivered exceed the maximum
amount required by the boiler and the maximum amount allowed
for the burner.
To start the burner proceed as follows:
DANGER / CAUTION
Prevent operation of the second flame avoiding to connect the
4-pin connector (2nd stage).
• Adjust the air in the amount presumed to be necessary for the
1st stage ignition using the special cam of the air adjustment
servomotor (indicative value 15° - 20°)
• Turn on the main switch and the one on the control panel.
• The programmer is activated and it starts carrying out the
predefined program activating the burner devices.The equipment
will start operation as described in the Chapter “DESCRIPTION
OF OPERATION”.
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