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NATURAL GAS IGNITION AND REGULATION
• Turn the switch on the control panel to the "O" position (open).
• Turn the fuel change-over switch to the "GAS" position.
• Check that there is water in the boiler and that the gate valves of
the system are open.
• Check that the discharge of combustion products through the boiler
gate and flue gate take places freely.
• Check that thee voltage on the mains meets the manufacturer
requirements and that all electrical connections made at the
installation site are performed properly as illustrated in our wiring
diagram.
• Bleed out the air contained in the gas piping, with due precautions
and with doors and windows open.
• Open the union on the pipe near the burner and then open the
shut-off valves a little.
• Wait the time necessary for the gas in the room to disperse outside.
Re-connect the burner to the gas pipeline.
• Make sure that the combustion head is long enough to enter the
furnace following the measure specified by the boiler manufacturer.
• Apply a pressure gauge of appropriate scale to the pressure intake
on the gas pressure switch. If the foreseen amount of pressure
allows it, it is better to use a water column instrument. Do not use
dial instruments for average pressures.
• With the switch on the burner panel at the position "0" and the main
switch on, check, closing the contactor manually, that the motor
rotates in the right direction. If necessary, swap the two power
cables for the motor around to change the direction of rotation.
• If using the inverter, see the specific instructions in the quick guide.
• Connect (pos. I) the main switch (1) on the control panel to power
the equipment and close the thermostat line turning the selector (2)
in the "closed" position. If thermostats or pressure switches (safety
and boiler) are closed as well, the operating cycle will start. The
equipment turns on. For the regulation of the burner, see "RAPID
GUIDE TO PROGRAMMING" and the specific instruction manual
for the electronic cam supplied with the burner.
• In burners whose flame sensor is constituted by a IRD photocell,
check that the photocell trips while the burner is in operation by
removing it from its seat and checking that it stops, i.e. a ";lock-out";
situation occurs.
• Check for the efficiency of the thermostats or boiler pressure
switches (they should shut down the burner when triggered).
• The flame detection is carried out by IRD photocell sensitive to
infrared floating radiation. The possible presence of a slight
amount of grease may strongly compromise the passage of the
light radiations, preventing the internal sensitive element from
receiving the quantity of radiations required for proper operation.
Even the simple contact with your fingers can leave a slight
amount of grease that is enough to compromise the operation of
the photocell. Properly clean the bulb before placing it in its seat.
The photocell does not "detect" daylight or the light from a common
lamp. Its sensitivity can be tested using a flame of a lighter, or of a
candle. To ensure a proper operation, the photocell voltage value
must be sufficiently stable and not go below the minimum value
required for the specific equipment. The check is performed by
measuring the voltage values at the terminals of the panel shown
in the wiring diagram.
• When the burner is working at its "minimum" output, adjust the air
and liquid fuel in the proper quantities to ensure a good combustion.
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1)
Main switch ON - OFF
2)
Thermostatic line switch
3)
display
4)
Appliance shutdown indicator light
5)
Power LED
6)
Fan lock-out if present
7)
Gas operation light
8)
Liquid fuel operation indicator light
9)
Pump motor lock
10)
Fuel switch (gas/liquid fuel)
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