EWC Controls 12" X 8" ND-RSD NO Normally Open Motorized Zone Damper

  • Description
  • Specifications
  • Heavy Duty Frame
  • Nylon Bushings for Quieter Operation
  • Revolutionary Motor with greater Reliability
  • LED’s to Show Damper Operation
  • Low Leakage
  • Simple 2-wire Hook-up
  • Easier Ordering
  • Motor is always mounted on second dimension specified
The ND series of Ultra-Zone dampers was designed with the installer and homeowner in mind. This damper is easy to install and easy to checkout. The LED display allows the installer to visually check the damper operation. With a sturdier frame, the damper installs in the duct much faster and easier and the nylon bushings insure quieter operation. This is a feature that homeowners will never hear about. Quieter operation and a longer life motor equals No call backs. For added flexibility, ND dampers can also be provided with a spring return style motor , Model ND-RSD. The ND-RSD does not have LEDs. Please specify the unpowered state of ND-RSD dampers as “normally closed” or “normally open” when ordering.