A Method for controlling the pressure of the heat transfer fluid circulating in a heating system, said system comprising at least:
- a thermo-sanitary appliance, in particular a gas boiler;
- a primary circuit having a primary exchanger for the heating of the water intended to supply the heating bodies for the space heating;
- a secondary circuit having a secondary exchanger for the heating of the domestic water intended for the users;
- a pressure sensor adapted to measure the value of the pressure of said heat transfer fluid;
- a control unit adapted to receive said pressure value of the fluid;
- such method comprising at least the following steps in sequence:
- Step 1:
- extrapolating the minimum values (P.MIN) of the pressure of the fluid from the original minimum values (P.RAW), within a time observation window (T.analysis) corresponding to a given number of previous days;
- Step 2:
- identifying one or more ramps of the minimum values (P.MIN) of the pressure of the fluid, within said time observation window (T.analysis);
- characterized in that such method further comprises in sequence the following steps:
- Step 3:
- calculating a plurality of characteristics relating to the trend of the pressure of the fluid on the basis of said one or more ramps of the minimum values (P.MIN) identified in Step 2;
- Step 4:
- providing said characteristics calculated in Step 3 to a machine learning classification model, previously trained with the history data of a multitude of heating systems, said model producing a three class classification in outlet, each of which is representative of the more or less high probability that in a future time window (T.prox) said thermo-sanitary appliance (1) will block due to an excessively low value of the pressure of said fluid, said three classes comprising:
- green class:
- representative of a high probability that said thermo-sanitary appliance will not incur, in said future time window (T.prox), into any blockage problem caused by an excessive drop in the pressure value of the fluid;
- yellow class:
- representative of the fact that said thermo-sanitary appliance (1) will present, in said future time window (T.prox), a pressure value of the fluid lower than the recommended value, but not an obstacle to the continued operation of said appliance;
- red class:
- representative of a high probability that said thermo-sanitary appliance (1) will incur, in said future time window (T.prox), into any blockage problem caused by an excessive drop in the pressure value of the fluid.