Building system performance analysis

A method for improving system performance in a building environment including a refrigeration system controlled by a refrigeration controller, the refrigeration system including at least one refrigeration case in each of a plurality of circuits, a rack having a plurality of compressors, an unloader for each compressor, a rack controller, a suction header disposed upstream of the rack, a discharge header disposed downstream of the rack, a condenser, a condenser fan, and at least one pressure sensor and at least one temperature sensor, said method comprising:

• (A) installing a temperature monitoring system for the refrigeration system;
• (B) performing a temperature audit on the at least one refrigeration case;
• (C) calibrating the at least one temperature sensor and the at least one pressure sensor;
• (D) obtaining operating parameters of the refrigeration system;
• (E) testing multiple components of the refrigeration system;
• (F) adjusting at least one of operating pressure and operating temperature of the at least one component of said multiple components;
• and
• (G) tracking resulting system stability.