Resideo RRD8/U 8 in Retrofit Round Damper

Product Description

The RESIDEO RRD8/U is an 8-inch retrofit zone damper designed for easy installation into rigid round ductwork, ideal for retrofit zoning applications. It features a visual position indicator and a 2.5 VA 90-second actuator, operating at 24 Vac with 50/60 Hz frequency and 1.5 watts running power consumption. Constructed from durable galvanized steel for both the blade and damper, it ensures low internal leakage at 3.4% at 0.5 in WC and is compatible with Honeywell Home zoning panels.

• Easy slide-in installation
• Quiet, long life motor automatically shuts itself off in full open and closed positions
• Gaskets around blade and under motor housing for low internal leakage and very low external leakage

Product Highlights

Retrofit zoning simplified with durable galvanized steel construction and compatibility with Honeywell Home zoning panels.

Product Information

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: RRD8/U
• Country of Origin: N/A

Technical Specifications

• Leakage: 3.4% at 0.5 in WC
• Application: Retrofit Zone Damper
• Damper Type: Retrofit
• For Use With: Honeywell Home TrueZONE panels and similar zone control systems
• Blade Material: Galvanized Steel
• Actuator Torque: 45 in. lb, 5 Nm
• Damper Material: Galvanized Steel
• Approvals and Standards: NEMA 1, UL listed
• Actuator Power Consumption: 1.5 watts running
• Damper Duct Shape Type: Round
• Height: 3.18 in
• Length: 10.75 in, 273 mm
• Width: 2.63 in, 67 mm
• Actuator Closing Time: 90 sec
• Actuator Frequency: 50 Hz, 60 Hz
• Actuator Mounting Location: Direct Couple
• Actuator Open Action: Counter Clockwise
• Actuator Opening Time: 90 sec
• Actuator Voltage: 24 Vac
• Ambient Operating Temperature Max: 122 °F, 50 °C
• Ambient Operating Temperature Min: -40 °F, -40 °C
• Blade Gauge: 20 gauge
• Damper Gauge: 18 gauge
• Electrical Connection Type: Screw terminals for 14 to 26 gauge wire
• Number of Wiring Terminals: 3
• Pressure Drop Max: < .05 in W.C.
• Diameter: 8 in