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Packaged rooftop unit with heat pump and evaporative cooling system.
It is estimated that 75% of commercial building floor area in California is conditioned with packaged systems. The emerging technology assessed in this study is the Seeley Climate Wizard (CW) Hybrid, which is a packaged RTU that integrates a heat pump with an indirect-direct evaporative cooling (IDEC) system that is designed as a direct replacement for a traditional RTU.
Refrigerant demonstration unit for R-466A at Western Cooling Efficiency Center.
Refrigerants used in vapor-compression air conditioners and heat pumps have been the subject of environmental regulations requiring the need to develop alternative solutions with lower global warming potential (GWP). In general, there is a trade-off when choosing alternative refrigerants between safety, performance, and GWP.