When the defrost cycle energizes the reversing valve switches mode to the air conditioning mode switching the whole heat pump system into an air conditioner in the cooling mode. This is necessary to defrost the condenser coils but it is counteracted through the defrost control by the defrost control.
Unified Grocers. Unified Grocers, originally Unified Western Grocers, is a retailer-owned wholesale grocery cooperative that supplies independent supermarkets in the Western United States. It was formed in 1999 as the merger of United Grocers of Oregon (founded 1915) and Certified Grocers of California (founded 1922). In 2007 it acquired Associated Grocers of Seattle, Washington, and changed its name to Unified Grocers. The company has its headquarters in Commerce, California.
The Grocers Supply Co., Inc. is a wholesale grocery distributor with its headquarters in the Southeast Houston district, Houston, Texas. As of 2011, it is the largest grocery wholesale company in the Southwest United States. Grocers Supply has enjoyed 90 years of success in serving and partnering with independent grocers in order to provide quality products to communities in Texas and surrounding states.