ASHRAE 206P:2013

The test procedure discussed in this standard was developed to provide a uniform method of testing for rating the seasonal efficiency of multi-purpose heat pumps, referred to herein as combined appliances, which perform space conditioning and water heating in residential applications. The heat pumps may also provide additional functions, such as ventilation and/or dehumidification. This procedure pulls together past test procedures and U.S. Department of Energy waivers dealing with special design equipment into a single comprehensive procedure covering all existing and anticipated multi-purpose heat pumps.