Danfoss’ AK-RC 251 Optyma control is designed to improve room efficiency by up to 30% and reduce installation time by up to 60%. Developed with new and existing systems in mind, the electronic controller eliminates the need for mechanical thermostats in cooling applications, along with defrost timers in freezer applications. The AK-RC 251 Optyma control can control compressors, solenoids, fans, lights, crankcase heaters and up to two defrosts.WWW.DANFOSS.US