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for applications requiring a NEMA 4X rating
allowing for seamless field modification from natural gas without sourcing secondary springs
5 Cv flow factor
specifically optimized for high-pressure CO2 and refrigeration applications
EWC Controls ND-RSD-8X30 Damper Freon for applications requiring a NEMAAs a direct replacement for the legacy ZoneFirst ZDB 8X30, the EWC Controls ND RSD 8X30 is a professional grade motorized rectangular zone damper engineered for high static residential and light commercial HVAC systems. This 8" High x 30" Wide parallel blade unit features a 24Vac synchronous motor mounted on the 30" dimension to ensure high torque and reliable operation. Designed for power open, spring return closed applications, it provides a fail