Evaluation of the Freus Residential Evaporative Condenser System in PG&E Service Territory

Residential evaporative condensers offer effiency advantages over conventional air-cooled conditioners by utilizing evaporative cooling to improve condensing unit performance. The evaporative cooling process results in a 30-40F reduction in peak refrigerant condensing temperatures relative to conventional air-cooled system, contributing to increasing demand savings as outdoor temperatures rise, as well as increased cooling capacity and efficiency without effecting indoor conditions. Simulation projections, based on project monitoring results, suggest cooling energy savings of 21-31% for typical Central Valley applications relative to conventional 13SEER air conditioning.

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