Process of controlling an air-conditioning and/or heating plant and related air-conditioning and/or heating plant

A process of controlling a plant for air conditioning and/or heating, said plant comprising

• at least one circuit for distributing a carrier fluid, said at least one circuit including at least one delivery line for the carrier fluid, and at least one return line for the carrier fluid, and
• at least one central thermal treatment group placed on said at least one circuit;
• two or more channels, each of which is hydraulically interposed between said delivery line, and said return line in order to serve respective environments to be air conditioned and/or heated,
• for each of said channels, the plant also comprising:
• at least one respective thermal exchange unit operating on each of said channels to serve a respective environment to be air conditioned and/or heated,
• at least one flow regulator operating on each of said channels and configured to regulate a flow of carrier fluid crossing the respective channel,
• at least one ambient temperature detector for each channel, said at least one ambient temperature detector being configured for detecting an ambient temperature relative to the environment to be air conditioned and/or heated served by said channel,
• at least one temperature detector for the carrier fluid operating on each of said channels, said at least one temperature detector for the carrier fluid being configured for detecting a delivery temperature of the carrier fluid in each channel, said delivery temperature being detected in an upstream section of the channel placed upstream with respect to all the thermal exchange units of said channel, and a return temperature of the carrier fluid in each channel, said return temperature being detected in a downstream section of the channel placed downstream with respect to all the thermal exchange units of said channel, said process including a thermal optimization comprising:
• calculating, for each channel, a respective environmental differential index representative of a difference between:
• a parameter representative of said delivery temperature and/or return temperature of the carrier fluid of the respective channel, and said ambient temperature relative to the environment served by the respective channel,
• comparing, for each channel (5), said respective environmental differential index with a respective environmental threshold parameter, so that if said environmental differential index is, in absolute value, lower than said environmental threshold parameter, the process comprises the step of driving the opening of the flow regulator of the respective channel;
• and/or
• wherein the thermal optimization procedure comprises the steps of:
• calculating, for each channel, a respective differential fluid index representative of a difference between the delivery temperature and return temperature of the carrier fluid;
• comparing, for each channel, said differential fluid index with a respective threshold fluid parameter, so that if said differential fluid index is, in absolute value, lower than said threshold fluid parameter, the process comprises the step of driving the closing of the flow regulator of the respective channel.

A plant for air conditioning and/or heating comprising:

• a circuit for distributing a carrier fluid including a delivery line of the carrier fluid, and a return line of the carrier fluid,
• a central thermal treatment group placed on said at least one circuit,
• channels each of which are hydraulically interposed between said delivery line and said return line and configured to serve respective environments to be air conditioned and/or heated,
• wherein, for each of said channels, the plant further comprises:
• a respective thermal exchange unit operating on each of said channels configured to serve a respective environment to be air conditioned and/or heated,
• a flow regulator operating on each of said channels and configured to regulate a flow of carrier fluid traversing the at least one respective thermal exchange unit,
• an ambient temperature detector for each channel, said at least one ambient temperature detector being configured for detecting an ambient temperature relative to the environment to be air conditioned and/or heated served by said channel,
• a temperature detector of the carrier fluid operating on each of said channels, said at least one temperature detector of the carrier fluid being configured for detecting a delivery temperature of the carrier fluid in each channel, said delivery temperature being detected in an upstream section of the channel placed upstream with respect to all the thermal exchange units of said channel, and/or a return temperature of the carrier fluid in each channel, said return temperature being detected in a downstream section of the channel placed downstream with respect to all the thermal exchange units of said channel,
• a control unit operatively connected to said temperature detector of the carrier fluid, to said ambient temperature detector, to said flow regulator and optionally to the central thermal treatment group, said control unit configured to execute a thermal optimization procedure comprising:
• calculating, for each channel, a respective environmental differential index representative of a difference between a parameter representative of said delivery temperature and/or return temperature of the carrier fluid of the respective channel, and said ambient temperature relative to the environment of the respective channel,
• calculating, for each channel, a respective differential fluid index representative of a difference between the delivery temperature and return temperature of the carrier fluid;
• comparing, for each channel, said respective environmental differential index with a respective environmental threshold parameter, so that if said environmental differential index is, in absolute value, lower than said environmental threshold parameter, the process comprises the step of driving the opening of the flow regulator of the respective channel;
• comparing, for each channel, said differential fluid index with a respective threshold fluid parameter, so that if said differential fluid index is, in absolute value, lower than said threshold fluid parameter, the process comprises the step of driving the closing of the flow regulator of the respective channel.