Water Cooled Condenser Evaluation

Residential sized water cooled condenser air conditioning technology has been available for several years. Laboratory and field testing of several generations documented the efficiency potential of this technology. Water Cooled condenser technology offer significant electric demand reduction potential up to 46% at 1100F and 32-34% energy savings; but, have suffered from reliability issues, limited product line and a week distribution network. The manufacturer of this technology, Freus, appears to have recently resolved several of these issues. Their product is carried by at least 2 mid-sizes HVAC distributors, they have introduced several new models including a gas and electric package unit. Freus also offers a Demand Response option with a claimed 65% reduction in peak electric demand. Because of technology changes it is time to determine if the energy and demand savings potential of the new models meets manufacturer’s claims.

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