APRIL 2018
High-Performing Commercial Rooftop Units

GPG, working with Pacific Northwest National Laboratory (PNNL) researchers, evaluated the first RTU that met the Department of Energy’s High Performance RTU Challenge.

Results from a warehouse in Fort Worth, Texas showed energy savings of 26%. Another PNNL study of high-performance RTUs at two Florida supermarkets found payback of 3.8 years.

Download Findings

• 1-page infographic

• 4-page brief

• PNNL full report

View Webinar

• On-demand video

• Slides

• Q&A

Additional Resources

• Field Evaluation of the Performance of the RTU Challenge Unit (PNNL March 2015)

• Part-Load Performance Characterization and Energy Savings Potential of the RTU Challenge Unit (PNNL September 2013)

• RTU Comparison Calculator (PNNL)

• Advanced Rooftop Control Retrofit: Field-Test Results (PNNL June 2013)

• High-Performing RTU Requirements: CEE Tier 2

• CEE directory

• Find a qualifying RTU < 5.5 tons, go to the CEE directory. Select the product type (Split or Packaged Air Conditioners), then select the appropriate filters, including Phase (Commercial) and CEE Tier (CEE Tier 2).

• Find a qualifying RTU >= 5.5 tons, go to the AHRI directory. Search the Commercial database under “Unitary Large Equipment” and “AHRI Rating Conditions.” Select “Conduct Advanced Search” and then enter the desired EER and IEER efficiency levels. There are 1000s of products in the database because even a minor variation in a product number results in a separate entry, so the more filters you can apply the better.