View Case Study as a PDF (1.6MB) View Case Study in a slider   FIELD RESULTS: DUAL-EVAPORATIVE PRE-COOLING RETROFIT HVAC Energy Efficiency Case Study The Western Cooling Efficiency Center tested the DualCool®, dual evaporative pre-cooler retrofit for rooftop units (RTUs). 13 RTUs on a big box store in Palmdale CA were retrofitted with the...

The Western Cooling Efficiency Center tested a new hybrid rooftop unit technology that employs dual evaporative pre-cooling to increase the cooling capacity and efficiency of vapor compression cooling. Three 12.5 ton Trane Voyager units with the DualCool, manufactured by Integrated Comfort, were installed at two different sites in Ontario, CA. This case study highlights the research and observation of this new HVAC system observed over a 14 month period from August 2014-October 2014. The
results presented in this case study reflect real world operation for California Climate Zone 10 in September and October 2014.