The Northwest Energy Efficiency Alliance (NEEA) contracted with Underwriters Laboratory (UL) to better characterize the duration and test parameters of the 2019 version of the Canadian Standards Association (CSA) EXP07 load-based test procedure for heat pumps. Key objectives included establishing a baseline understanding of the 2019 EXP07 test procedure and identifying if there are potential opportunities for reducing the test burden without undermining the representative accuracy of the overall rating it develops.
The memo provides high-level observations and indications that the test burden of EXP07 can be similar to that of the Air-Conditioning, Heating, and Refrigeration Institute’s (AHRI) 210/240 as executed in a third-party laboratory. In addition, the memo and PowerPoint deck suggest opportunities for streamlining the test procedure and rating without compromising the additional information gained through a load-based test procedure.
Data referred to in this memo and accompanying PowerPoint deck was part of lab testing of 15 different variable speed heat pumps by UL on behalf of NEEA and Natural Resources Canada (NRCan) during 2020.