A heat pump has a reversing valve, two metering devices and two bypass valves. This allows the unit to provide both A/C and Heat. The diagram above shows a HP (heat pump) in cool mode. The cycle goes like this; 1  The compressor (1) pumps the refrigerant to the reversing valve (2).
Union Gap, Washington. Union Gap redirects here. For the music group, see Gary Puckett & The Union Gap. Union Gap is a city in Yakima County, Washington, United States. As of the 2010 census, the city population was 6,047. Union Gap has a storied history and in recent years has become the retail hub for the entire Yakima Valley as a result of Valley Mall and other thriving businesses being located here.
Union Gap Clerk 102 West Ahtanum Road Union Gap WA 98903 509-576-8911. Yakima County Clerk 128 North 2nd Street Yakima WA 98901 3.5 miles from Union Gap 509-574-1430. Selah City Clerk 115 West Naches Avenue Selah WA 98942 7.2 miles from Union Gap 509-698-7328.