Variable Speed Drives Help U.S. Foodservice Distributor Slash Energy Bills
Variable speed drives from Control Techniques, an Eden Prairie, Minn.-based manufacturer of AC and DC variable speed drives, servos and power conversion technologies and division of Emerson Industrial Automation, helped a U.S. foodservice distributor slash energy bills by more than $2,000 a month, reduce downtime and extend equipment life.
The facility stores massive quantities of foodstuffs in freezers and cooler boxes ready for regional distribution. Prior to Emerson’s upgrade work, each freezer and cooler box was controlled by a circuit with its own compressor, condenser and evaporator. These were in turn controlled by individual mechanical thermostats and defrost time clocks.