Thank you for purchasing an ND damper from EWC Controls. Tech support is available at 800-446-3110.
Here are some useful documents:
ND
Submittal Sheet – ND w/ Current Version Motor MA-ND5
Special Situation Wiring Instructions:
Damper Model ND/URD – Used with a Steve Co relay and thermostat
Damper Model ND/URD – Multiple dampers wired to one zone
Damper Model ND/URD – Used with an auto-changeover thermostat
Damper Model ND/URD – Wired with an SPDT switch
Damper Model ND/URD – Wired as fresh air intake
Damper Model ND/URD – Wired with an EWT and TSB
Damper Model ND/URD – Wired as fresh air intake — restricted
Damper Model ND/URD – Wired with a model SMD style damper
Damper Model ND/URD – Used with a Steve Co relay and thermostat
Damper Model ND/URD Dampers used w/ CO2 Monitor
Damper Model ND/URD – Multiple system & Damper Combustion Air Set-up
Damper Model ND/URD – Additional Damper wired for Zones 2 & 3
Damper Model ND/URD – Wired to “OPEN” on Cool Operation Only
AN-141 URD or ND Type Dampers Any Heat/Cool Thermostat w/ Sub-base Recommended Configuration