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0006081544_201907
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 installation site are effected properly as illustrated
in our wiring diagram.
•
Make sure that the combustion products may be freely vented
through 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 equipment.
•
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.
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 / 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
predefined program activating the burner devices.The
equipment will start operation as described in the Chapter
“DESCRIPTION OF OPERATION”.
•
When the burner is operating in the 1st stage, adjust the amount
of air necessary to ensure an efficient combustion, see “AIR
ADJUSTMENT ON THE BURNER HEAD” and 0002938170 for
the gas- diesel 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 according 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
•
During burner ignition, when it passes to the first stage, the air/
gas servomotor takes for a few seconds the burner to a delivery
higher than the first stage.
•
During this transition phase check that the cam (IV) for actuating
the servomotor second stage does not activate.
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.
Summary of Contents for TBML 200 MC
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