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.
The New Gary Puckett and the Union Gap Album. The New Gary Puckett and the Union Gap Album is the fourth and final studio album by Gary Puckett & The Union Gap that contained all new material. It was released in 1969. Their version of the song Don't Give in to Him was released in March of 1969 and hit No. 15 on the Billboard Hot 100 and No. 13 on the easy listening chart. The song This Girl Is a Woman Now was released in August of 1969 and hit No. 9 on the Billboard Hot 100 and No. 2 on the easy listening chart.