Centinel improves refrigeration systems’ energy efficiency, eliminates icing and fogging, and reduces operating costs. The intelligent defrost control system consists of a microprocessor-driven controller, four temperature sensors and a suction transducer. The defrost control reduces the energy used by the system by precisely controlling superheat and fans, reducing compressor run time and implementing demand defrosts. It uses a self-learning algorithm that allows the defrost control system to automatically adjust to changing system conditions.

RAE Corp., Century