Rooftop cooling and heating unit efficiencies are based on direct expansion air conditioning and furnace efficiencies. For added efficiency, install enthalpy-based economizers, heat recovery units-such as enthalpy wheels or air-to-air heat exchangers. Occupancy control, dual-speed compressors, and NEMA PremiumTM ventilation fan motors will also increase efficiency. As another option, "demand-controlled ventilation" uses a carbon dioxide sensor to determine the occupancy of the conditioned space so that outlet dampers, inlet vanes, or variable speed drives can be used to reduce the amount of ventilation air provided to the space.
Calculate how much you can save by using an energy-efficient air conditioning system.
About Us
Building Efficiently