IGNITION AND ADJUSTMENT WITH LIQUID
FUEL
Before starting up, make sure that:
• Make sure that the mains voltage corresponds to the manufacturer's
requirements and that all electrical connections made at the instal-
lation site are effected properly as illustrated in our wiring diagram.
•
Make sure that the combustion products may be freely vented throu-
gh the boiler and flue dampers.
•
Check that there is water in the boiler and that the gate valves of the
system are open.
•
Check that all the gate valves fitted on the fuel suction and return
pipes are open; the same applies to any other fuel shut-off devices.
•
Adjust the air for the ignition flame:
It is recommended to first make the ignition with the liquid fuel as the
delivery is conditioned by the nozzle.
Then to regulate the gas operate the pressure regulator on the gas
train.
In burners with mechanical cam, after adjusting the gas, it is necessary
to re-check the liquid fuel calibration.
•
Connections to the supply line, to thermostats or pressure switches,
have been made according to the electrical diagram of the equip-
ment.
•
There is fuel oil in the tank and water in the boiler.
•
Make sure that the combustion head penetrates into the furnace to
the extent requested by the boiler manufacturer. 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”.
•
The right type of fuel has been selected.
•
Check that the nozzles fitted on the burner are suitable for the boiler
capacity. If necessary, replace them with suitable ones.
To start the burner proceed as follows:
DANGER / ATTENTION
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 predefi-
ned program activating the burner devices.The equipment will start
operation as described in the Chapter “DESCRIPTION OF OPERA-
TION”.
•
When the burner is operating in the 1st stage, adjust the amount of
air necessary to ensure an efficient combustion, see “AIR ADJUST-
MENT ON THE BURNER HEAD” and 0002938170 for the gas- die-
sel 1st stage cam adjustment.
•
After adjusting the 1st stage air the burner stops disconnecting the
current from the main switch, the electric circuit commanding the
second stage activation closes connecting the 4-pole connector ac-
cording to the wiring diagram.
•
Adjust the quantity of air necessary for the maximum flow rate (2nd
stage) through the screw/s at the bearing (12).
- in a clockwise direction the air flow increases
- in an anti-clockwise direction the air flow decreases
TBML_ACC_REG_001
THERMAL RELAY CALIBRATION
The thermal relay prevents motor failure due to a large increase in
electric absorption, or the lack of single-stage.
For calibrating, please refer to the nominal value of the motor current.
To reset the burner, if the thermal relay trips, press the reset button
(RESET).
DANGER / ATTENTION
The automatic reset may be dangerous thus, when possible, do
not set this function on the thermal relay.
ENGLISH
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