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12. Air vent and release of
the pump
12.1. Air vent (only for Fi models)
The first time you fill the Central Heating system it is necessary to let
the air going out from the pipes and boiler. To achieve this operation it
is necessary to proceed as follows:
•
Shut off the gas
• Open the front door of the boiler.
• With the system circulation pump running, loosen the plug screwed
onto the pump shaft so as to let the air out.
• Screw the pump plug back on.
If necessary, repeat the above described procedure many times.
We recommend to collect the water coming out during the above
mentioned operations.
12.2. Release of the pump
The PCB of the boiler includes a pump anti-blocking function: in
case there is no heating demand for 24 hours consecutively, the pump
automatically activates for a minute. The anti-blocking function is
operating only if the boiler is electrically supplied and the selector (1)
is not in position (0).
Anyhow, after a non- working period or at the first lighting of the boiler,
a manual release of the pump could be necessary, it is enough to take off
the tap screwed on the pump axis, put in a screwdriver and let the rotor
turn to release it and help its functioning.
010706_1000
010706_1
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13. Regulation on the
electronic card (PCB)
With the switches in OFF position:
T.RISC.
Central Heating water temperature range 30÷85°C
GPL
Operation with Natural Gas
T-off
3-minute of stand-by time in Heating mode
POMPA
3 minutes of pump post-circulation after room thermostat
switch-off.
D.POMPA
T
his switch must always be in ON position
NB. Make sure that these regulations are done when the boiler is not
electrically supplied.
With the switches in ON position:
T.RISC.
Central Heating water temperature range 30÷45°C
GPL
Operation with L.P.G.
T-off
10-seconds of stand-by time in Heating mode
POMPA
Continuous operation of the pump during heating func-
tion