GeoComfort ERE rooftop water-to-air units can introduce a fixed amount of outside year-round or a modulating economizer can provide free cooling when outdoor conditions are favorable. These units are designed for an extended range of source water temperatures, which makes them suitable for closed-loop or ground source closed-loop systems. Exceeding ASHRAE 90.1 efficiencies (40 percent better than standard rooftop units), these systems are ideal for large commercial buildings, public institutions, schools, etc.
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