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The independent control of these grilles makes it possible, in short, that a sole machine with a
unique setpoint temperature controls each of the zones as convenient, no matter if their own
setpoint temperatures are different.
Controlling the central machine is made by taking into account the number of the zones to be
acclimatized, as well as their own setpoints:
The IRSC-Zone application program calculates the setpoint temperature that the central
machine needs to be sent depending on what the desired temperatures for the different zones
are.
It is optionally possible to make this calculation also depend on an additional external
temperature, provided by a KNX sensor located next to the a/c machine, thus making it
possible to correct undesired turn-offs or adjustments made by the machine itself when it
detects that the ambient temperature of its actual location (which may be subject to punctual
heat or cold sources) is similar to the setpoint, although the ambient temperatures of the
zones are not.
Moreover, this calculation will also consider any “addition temperature” other than zero
that may have been parameterized (see section 3.5).
Apart from sending temperature setpoints and other orders to the air machine, IRSC is, as already
stated, responsible for controlling the air grilles of the zones, which implies selecting and applying
an algorithm which, depending on the setpoint and reference temperatures of every zone, will
continously determine whether the grille of each zone must stay open or not.
All the concepts mentioned so far are explained in detail in section 3.
ETS Parameterization.
Moreover
,
for further details and for a complete application example, please refer to the Annexes of
this manual.
