The new RSI Nesbitt (Cleveland, OH) high-efficiency rooftop systems are designed for retrofit and new construction applications. RSI is producing the original Nesbitt rooftop multizone units with an improved galvanized casing, designed with a three-break sloped roof. Cooling capacities range from 17 to 32 nominal tons.
The units are said to weigh no more than their original aluminum counterparts and will mount on an existing roof curb without structural modification. Existing control zones and duct connections can be maintained with little or no modification. Units are available for use with natural gas, propane, steam, or electric heating elements.