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3.19 PUMP ANTI-BLOCK
The appliance has a function that starts up the pump at least once every 24 hours for 30 seconds in order to reduce the risk of the pump
locking up due to prolonged inactivity.
3.20 THREE-WAY ANTI-BLOCK
In both phase "DHW", and "DHW - Central heating" (when combined with a storage tank unit) the appliance has a function that activates
the motorised three-way unit 24 hours after the last time it operated by running a complete cycle in order to reduce the risk of the three-
way blocking due to prolonged inactivity.
3.21 RADIATOR ANTIFREEZE
If the system return water is below 4°C, the appliance starts up until reaching 42°C.
3.22 AMBIENT ANTIFREEZE
When the room temperature drops below 5°C (adjustable, see special functions chapter) a central heating request is made at minimum of
the power programmed.
This situation remains active until there is a variation in room temperature of 0.6°C equal to 5.6°C measured in the room where the con-
trol panel is positioned. The function is only active when the room control interface is set as Remote Panel (P. Rem.).
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