user's manual
Anti-frost Device.
The anti-frost function acts on the central
heating fl ow temperature probe, independently
from other regulations, when the electrical
supply is turned on.
If the primary circuit temperature falls below
8°C the pump will run for 2 minutes.
After the two minutes of circulation (fi xed) the
boiler will check the following:
a) if the central heating fl ow temperature is >
8°C, the pump stops;
b) if the central heating fl ow temperature
is between 4 and 8°C, the pump will run
for another two minutes, (maximum 20
minuts);
c) if the central heating fl ow temperature is <
4°C, the burner will fi re (heating position)
at minimum power until the temperature
reaches 30°C, after 5 seconds of postv.
The anti-frost device activates only when (with
the boiler operating correctly):
- the system pressure is correct;
- the boiler is electrically powered,
the green led is illuminated;
- there is a supply of gas.
Change of gas type
Our boilers are designed to function either with
Natural Gas (methane) or L.P.G. gas. If you need
to change from one gas to the other, one of our
Authorised Service Centres must be contacted
to convert the appliance.
Maintenance
Schedule an annual maintenance check-up for
the boiler with a competent person.
Correct maintenance always results in savings
in the cost of running the system.
Failure to arrange an annual service for the
appliance will invalidate the second year of the
manufacturers guarantee.
