Durozone 8 inch Round HVAC motorized air control damper 3 wire 24V AC

Description

Durozone 8 Inch round damper with 24volts AC, 3 wire power close/power open damper. One of the oldest and most proven designs in the motorized damper business, the Durozone RD damper is an outstanding value and features a 3 wire, power open, power close motor.  Unlike spring return dampers, the  3 wire design only uses power when the damper is moving.
Still, the Durozone RD damper series can be controlled by a standard thermostat with no extra relay needed, as is common with some 3 wire dampers.  Check our pictures: blades riveted (not spot welded) with heavy duty construction throughout.  Compatible with virtually any 24vac Zone control system or thermostat.
*Seven second actuation time and uses power only when moving-unlike spring return dampers, one 40VA transformer will power up to 8 of these dampers.
*24vac powered and works with almost all zone control systems and thermostats, no matter what brand.
*Heavy duty galvanized metal can.
*Reinforcing beads on heavy duty galvanized can.
*Blade is riveted on, not cheap spot welded!
*Direct drive quality, no cheap gears or springs.
*Outstanding long time USA manufacturer with great reputation.
PLEASE NOTE:  These dampers are manufactured without polyurethane seals,
therefore some
air can travel around the vent even when it is closed. Polyurethane seals can be added Duro Dyne631-249-9000
Buggay Air llc,
Danielsville Ga.7067893486