Regulation method and refrigeration plant and respective refrigeration plant including such apparatus

A regulation apparatus for a refrigeration plant, wherein a refrigerating fluid path is defined in the refrigeration plant and one or more devices are arranged along said refrigerating fluid path, wherein said regulation apparatus includes

• a first sensor arranged in a first point (P1) along the refrigerating fluid path of the refrigeration plant to detect a first value of a quantity in said first point (P1),
• a second sensor arranged in a second point (P3) along the fluid path of the refrigeration plant to detect a second value of said quantity in said second point (P3),
• a control unit, and
• an actuator to actuate at least one or more devices of the refrigeration plant,
• wherein said control unit controls the first value of said quantity measured by said first sensor and obtains a first request for regulation of said one or more devices of the refrigeration plant deriving from said first measured value
• wherein said control unit controls the second value measured by said second sensor and obtains a second request for regulation of said one or more devices of the refrigeration plant deriving from said second value measured for said second point (P3),
• wherein said control unit compares the first regulation request with the second regulation request and determines an improved safety regulation request that improves safety greater for said refrigeration plant between the first regulation request and the second regulation, and wherein said control unit controls the actuator to actuate the improved safety regulation request for said one or more devices of the refrigeration plant.