Description
Series RA-500 retrofit assemblies are customized retrofit valves designed to slip into existing mechanically regulated single or dual duct terminals. The units allow the conversion of constant volume systems to more energy efficient, variable volume systems. RA-500 assemblies are currently available to fit most brands of terminals manufactured from the 1960s to the 1980s. The RA-500 valves can be installed, in most applications, without disrupting existing ductwork. Units are installed by removing existing volume regulators and inserting the RA valve. One or two valves in a single panel may be controlled by a single actuator.
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