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52
AST 14 C 257/00
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.
THERMOREGULATION WITH AN EXTERNAL PROBE
An external temperature probe automatically modifies the heating water flow temperature
based on:
-
the
outdoor temperature measured
-
the thermoregulation curve selected
-
the fictitious amb ient temperature set
The thermoregulation curve is selected via parameter P10 (0 to 3), and the fictitious
ambient temperature via the heating buttons.
The control board autonomously recognises the presence of the outside temperature
probe and activates the thermoregulation function, keeping the flow temperature within the
heating temperature pre-selection range (20-78°C or 20-45°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 outside temperature value to the remote control, and if the heating request is
determined by the same control, this will determine the flow temperature based on its
thermoregulation curve and the previously set ambient temperature.
If the heat request arrives simultaneously from the remote control and from the closure of
the ambient T. contact on the board, both the remote control and the modulation board
independently calculate the flow temperature on the basis of the set reciprocal
thermoregulation and ambient temperature curves; the higher of the two flow temperature
values will be used.
