20
Period of regulation
Imposes the duration of the regulation cycle (period on + period off) when the proportional
temperature regulation mode is chosen. Select 5 minutes for low inertia plants (such as fan
coils), 10 minutes for medium inertia plants (such as aluminium radiators), 20 minutes for
high inertia plant (such as cast iron radiators).
Configuration of the separate temperature probe
It is possible to connect a separate temperature probe to the chronothermostat; its
functioning is determined by this parameter.
•
Probe excluded
(---): even if the probe is connected, the temperature value it detects is
not utilised.
•
Floor probe
(FLO): when the temperature detected by the probe reaches the value
imposed in the parameter
Floor temperature limit
the plant is switched off independently
of the temperature detected by the chronothermostat.
•
Ambient probe
(In): regulation of the plant is based on the temperature value detected
by the separate probe. This temperature appears on the display in place of that detected
by the internal probe within the chronothermostat. The separate ambient probe is used
when the chronothermostat is necessarily situated in a position other than that whose
temperature one wants to control;
•
External probe
(Out): does not influence regulation of the plant and serves simply to
provide information on a second temperature, for example the outside temperature.
Floor temperature limit
Imposes the limit value for the temperature read by the separate probe which switches off
the plant when the floor probe is used (for underfloor heating plant).
Correction of the ambient temperature
Makes it possible to add or subtract an offset from the temperature measured by the
chronothermostat.
Optimisation
Calculates the advance switch-on time necessary to achieve the desired temperature at
the time of day set, taking account of the thermal inertia of the plant. This optimisation is
applied only to the first switch-on of the day, that is on the first programmed step from one
temperature to a higher one.
Maximum duration of optimisation
Imposes the maximum duration (expressed in hours) for the advance switch-on calculated
by the optimisation.
Pump gripping prevention
Switches the plant on for 1 minute a day (at h 23.58), making the water circulation pump
rotate, with the aim of preventing it from gripping. It comes into operation only if the plant
has never been switched on during the day.
