Performance Evaulation Data for Dual-Evaporative Precooling Retrofit

Category: 
Commercial
Project Number: 
ET13SCE1040
Start Year: 
2013
End Year: 
2015
Markets Segments: 
Commercial
Project Type: 
Electric Energy Savings
Type of Technology: 
HVAC, Commercial
Organization: 
Southern California Edison (SCE)
Project Status: 
Completed
Savings Type: 
Industry

Packaged rooftop air conditioning units (RTUs), the predominant equipment for space conditioning of small and medium-size commercial buildings, are used in an estimated 70% of space conditioning in commercial buildings. Because RTUs can last for roughly 15-20 years in California, many companies are entering the market with retrofit products designed to improve the energy efficiency of existing RTUs.

To evaluate one of those retrofit products, this project gathered field data to demonstrate and understand the performance improvement associated with adding an evaporative pre-cooler for condenser inlet air and ventilation air to conventional RTUs.

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