Reversing valve

What it is

During the defrost cycle, the reversing valve switches the heat pump from heating mode to cooling mode temporarily.

Source: U.S. Department of Energy

Its parts

Related pages

• Glossary: Reversing valve

  Its entry, and the guide's pages that use it.

Sources

1. U.S. Department of Energy. Decarbonizing Building Thermal Systems: A How-to Guide for Heat Pump Systems and Beyond.