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47
AST 14 C 258/00
Heating modulation temperature - reduced range (P10<1):
Heating temperature setting reduced range: 20-45°C
Reduced heating thermostat intervention temperature: OFF = set-point + 2°C
Reduced heating thermostat intervention temperature: ON = set-point - 2°C
Heating thermostat timer (anti-fast) via parameter P11: 0-10 min, default 4 min with Tflow >
P27
Heating thermostat timer reset temperature via parameter P27: 20-40°C, default 20°C
Heating output ascent ramp time via parameter P12: 0-10 min, default 1 min
The set-point depends on the heating temperature set via the boiler buttons, or the
temperature set on the remote control.
WITH EXTERNAL THERMOREGULATION
One external temperature probe automatically modifies the heating flow temperature
according to:
- the outdoor temperature measured;
- the thermoregulation curve selected;
- the selected fictitious room temperature.
The thermoregulation curve is selected by means of parameter P10 (value from 0 to 3),
whereas the fictitious room temperature is selected with the “heating” keys.
The board independently acknowledges the presence of the external temperature probe
and activates the thermoregulation function, by keeping the flow temperature inside the
heating temperature pre-selection range (20 °C ÷ 78 °C o 20 °C ÷ 45 °C).
If both the external probe and the remote control are present, assuming that the remote
control is able to set and carry out its own thermoregulation, the modulation board sends
the external temperature value to the remote control, and if the heating request is
determined by the same control, this will determine the flow temperature according to its
thermoregulation curve and the room temperature it has previously set.
Otherwise, if the heating request comes contemporaneously from the remote control and
the room T. contact closure (on the board), both the remote control and the modulation
board calculate independently the flow temperature according to reciprocal
thermoregulation curves and set room temperatures; the highest value of the two will be
used.
