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 City is a small city located in the northwest corner of Tennessee, United States. The 2010 census reported the population of the town to be 10,895. Union City is the principal city of the surrounding micropolitan area, which includes, Obion County, Tennessee and Fulton County, Kentucky. The city name, Union City, was derived from its location at the junction of two railroads with one running roughly east-west and the other roughly north-south.