A refrigeration system in a retail store, such as, for instance, a supermarket or grocery store, may include a large number of refrigeration circuits, such as, for instance, refrigeration and freezer display cases and walk-in coolers. A refrigeration system may also include one or more rooms, commonly referred to as refrigeration racks, which may contain compressors, fans, refrigerant tanks, and/or associated control circuitry, to centrally manage the temperature of the refrigeration circuits (e.g., keep the refrigeration circuits at the correct temperature). For example, the refrigeration system may use refrigerant held in the refrigerant tanks to transfer heat from one location to another in the refrigeration system.
A refrigerant leak may occur in a refrigeration system at some point during operation of the system. If the refrigerant leak is not quickly detected, an unplanned loss of refrigerant will occur, which may result in a refrigeration rack failure and/or emergency situation in the retail store.