And, it has a peak power demand of only 400 Watts compared to about 3,000W for a three-ton air conditioner. Smart Cool uses only fresh air and water, no CFCs, HCFCs or refrigerants of any kind. Instead of recirculating air within the house, the unit provides 100-percent, filtered outdoor air. In most installations, air is delivered directly through the wall, or it can be ducted to one or two central locations.
Air exits the home through vents to the attic, which cools the attic and further reduces heat gain.
In the first stage, incoming air passes through a water-filled heat exchanger that cools without adding moisture. In the second stage, air passes through a water-soaked pad where the temperature drops more and the air picks up water, which increases the humidity. Most residential evaporative coolers use only the direct cooling method, which can keep the relative humidity around 70 percent. Compared to typical residential coolers, the two-stage approach increases the overall cooling capacity and keeps the relative humidity between 50 and 65 percent. Smart Cool is designed to operate with wet bulb temperatures of 70 degrees F. Smart Cool also can be connected to a hydronic heating system to add cooling capabilities to radiant floor heating systems.