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INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3.19 CHIMNEY SWEEP
is function, when activated, forces the boiler to a settable power for 15 minutes.
In this state all adjustments are excluded and only the safety thermostat and the limit thermostat remain active.
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To activate the chimney sweep function, press the "RESET" but-
ton for 5 seconds if there are no DHW requests.
is function allows the technician to check the combustion parameters.
Once the function is activated, it is possible to select whether to make the check in CH status or DHW status by opening any hot water
valve.
If the function is active in CH mode, the +/- buttons (7-8) for CH temperature control (
) can be used to select the power from Mini-
mum Power (0%) to Maximum Heating Power (99%) in 1% intervals. If the function is active in DHW mode, the +/- buttons (7-8) for
heating temperature control ( ) can be used to select the power from minimum power (0%) to maximum DHW power (99%) in 1% in-
tervals.
Functioning in CH or DHW mode is visualised by the relative ashing symbols "
" or " ".
To exit, press the RESET button.
3.20 PUMP ANTIBLOCK
e 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.
When "OFF" operating status is selected, this function can be deactivated by means of the parameter P.8.
3.21 THREEWAY ANTIBLOCK
e appliance has a function that activates the motorised 3-way unit 24 hours aer the last time it operated by running a complete cycle in
order to reduce the risk of the 3-way blocking due to prolonged inactivity.
When "OFF" operating status is selected, this function can be deactivated by means of the parameter P.8.
3.22 RADIATOR ANTIFREEZE
If the system return water is below 4°C, the appliance starts up until reaching 42°C.
When "OFF" operating status is selected, this function can be deactivated by means of the parameter P.8.
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