The REG System divides the management of the system into several subsystems, represented in this diagram to be kept in mind while programming the controller:
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Zones can combine several factors (room temperature, an external enable signal, current Working Mode, determined by the Timetable associated with the zone, and others) to determine whether a particular part of the system requires to be heated, cooled or dehumidified at a given time.
DHW (Domestic Hot Water)
Il sottosistema ACS si occupa di gestire la produzione di Acqua Calda Sanitaria (vedere ABILITAZIONE ACS).
Lo si può considerare come una Zona con alcune caratteristiche e funzioni particolari, create specificatamente per controllare la produzione di acqua calda; come le altre Zone dell'impianto è "alimentata" da un Orologio, che determina il Modo di Lavoro corrente, e "alimenta" a sua volta un Circuito.
Nel sistema è presente un unico sottosistema ACS; è però possibile far sì che ognuna delle 32 Zone del sistema si comporti con le medesime peculiarità del sottosistema ACS, per cui di fatto è possibile avere fino a 33 sottosistemi di tipo ACS nel sistemaThe DHW subsystem is responsible to manage the production of Domestic Hot Water (see DHW ENABLE).
It can be considered as a Zone with special features and functions, specifically created to control hot water production; as the other Zones in the system, it is “powered” by a Timetable, that determines the current Working Mode, that “powers” in turn a Circuit.
In the System there is only one DHW subsystem; however, it is possible to make each of the 32 Zones of the system behave with the same peculiarities of the DHW subsystem, so in fact it is possible to have up to 33 DHW-type subsystems in the system!
Dehumidifiers
Dehumidifiers type subsystems deal with air dehumidification, with CMV system, and mainly with air-based heating/cooling integration system, such as fancoil.
Note
In fact, the name Dehumidifier assigned to this subsystem, is very limiting and it is a inheritance of the early versions of the REG System, when it “only” handled dehumidifiers; with the evolution of the REG System this subsystem has acquired many new functions and can be used to perform various tasks, but for simplicity and consistency it continues to be called “only” Dehumidifier.
Most of the Dehumidifier functions are carried out in conjunction with the Zones (which, as explained before, are responsible for determining the system’s requirements), but some basic functions for CMV management can also be managed independently by a Dehumidifiers, so there is a direct connection with the Timetables.
Circuits
La funzione principale dei sottosistemi di tipo Circuito è gestire l'apporto di energia all'impianto.
I Circuiti si occupano di vari aspetti che collegano le Zone (che deteminano il fabbisogno dell'impianto) con le Sorgenti (che producono l'energia per soddisfare questo fabbisogno), tra i quali:
Il controllo delle pompe di circolazione
La determinazione delle temperature richieste (IMPOSTAZIONE SENSORI E SET POINT)
Il controllo delle valvole miscelatrici (IMPOSTAZIONE VALVOLA MISCELATRICE E CIRCOLATORE/I)
E' importante sottolineare che i Circuiti non si attivano autonomamente, ma sono sempre attivati da un sottosistema a monte; nello specifico i circuiti possono essere attivati da una Zona, da un Deumidificatore o dall'ACS.
E' anche possibile gestire situazioni complesse con distribuzioni su più livelli, in cui un circuito attiva a sua volta altri circuiti (vedere CIRCUITO PADRE E CIRCUITI INTERBLOCCATIThe main function of Circuit-type subsystem is to manage the supply of energy to the system.
Circuits deal with various aspects that connect the Zones (that determine the system’s requirement) with the Sources (which produce the energy to satisfy this requirement), including:
The control of water pumps;
The determination of the temperatures set point (SET POINT AND SENSORS SETTINGS)
The control of the mixing valves (WATER PUMPS AND MIXING VALVES SETTINGS)
It is important to emphasize that the Circuits are not activated independently, but they are always activated by an upstream subsystem; specifically, circuits can be activated by a Zone, by a Dehumidifiers, or by DHW.
It is also possible to manage complex situation with distributions on several levels, where a circuit in turn actives other circuits (see FATHER CIRCUIT AND INTERLOCKED CIRCUIT).
Sources
Source-type subsystems manage the last link in the control chain, that is the production of the energy needed to heat, cool, and/or dehumidify the system.
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