BOILER PROTECTION DEVICES
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NOTE - ERROR 804:
TO CONNECT THE BOILER TO ELECTRONIC
SOLUTIONS FOR SOLAR MANAGEMENT OR
IBRID SYSTEMS (ONLY FOR COMBINATIONS NOT
ADMITTED), IT’S NECESSARY TO INSTALL A CLIPIN
SUPPLIED AS ACCESSORY CODE 3319171.
Anti-frost Device
The anti-frost function acts on the central heating 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 (xed) the boiler will check
the following:
a) if the central heating ow temperature is > 8°C, the pump
stops;
b) if the central heating ow temperature is between 4 and 8°C,
the pump will run for another two minutes;
c) if the central heating ow temperature is < 4°C, the burner
will re (heating position) at minimum power until the
temperature reaches 33°C, the burner will go out and the
pump will continue to run for two minutes.
The anti-frost device activates only when (with the boiler
operating correctly):
- the system pressure is correct;
- the boiler is electrically powered;
- there is a supply of gas.
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