baltur BT 75 DSNM-D, Instructions For Use Manual

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98323_201501
ENGLISH
REGULATION DEVICE HEAVY OIL BT...DSNM-D IDENTIFICATION DIAGRAM
IGNITION AND REGULATION
WITH COMBUSTIBLE OIL
• Check that the nozzle characteristics (output and
spray angle) are suitable for the combustion chamber
(see 9353/1). Otherwise, replace the nozzle, fitting one of the
right type.
• Check that there is fuel in the main tank and that fuel is suitable
for the burner, to judge by its appearance at least.
• Check there is water in the boiler and that the plant gates are
open.
• Make absolutely sure that discharge of combustion waste cannot
occur without hindrance (boiler gates and chimney open).
• Check that the operating voltage of the electric line corresponds
to what the burner requires and that electrical connections of
the motors and resistances are correct for the available voltage
level. Also check that all electrical connections carried out locally
have been done properly according to our electrical diagram.
• Make sure that the combustion head penetrates into the
combustion chamber to the extent specified by the boiler
manufacturer. Check that the combustion head is in the position
considered suitable for supplying the desired quantity of fuel (for
relatively low fuel supply the air passage between disk and head
must be considerably reduced; for fairly high nozzle output the
passage between disk and head must be relatively open) - see
the chapter “Combustion head regulation”.
• Remove the cover of the air damper motor. Following the specific
instructions (see BT 8655/1), put the 1st flame air regulation
cam in the position considered suitable for supplying sufficient
air to the 1st flame. In the same way, set the position of the
second flame air regulation cam. You then set the solenoid valve
cutting-in cam (to cut-in the 2nd flame) in an intermediate position
between the cam positions mentioned above.
Backnozzle thermostat (TRU)
10 ÷ 12 bar
1st flame pressure regulator
2nd flame udually opened
electrovalve =
Opened = 1st flame switched
on regolator
Closed
= 1st flame switched
off regulator
Pump heating resistance
Enter plug to the 20 ÷ 22 bar
regulation pressure pump screw
1st flame pressure regulator
heating resistance
18 ÷ 20 bar
Flame backpressure regulator
(almost less 2 bar than the
pump pressure)
Enter plugs to the regulation screw