Research Products 6606 Round Zone Damper with Motor

Product Description

The RESEARCH PRODUCTS 6606 is a round zone damper with an integrated synchronous motor, designed for use in residential and light commercial HVAC zoning systems. The damper operates on a power-closed, spring-open actuation sequence, which means the motor drives the blade to the closed position and the spring returns it to open on power loss — a fail-safe configuration common in zoned forced-air systems. The motor runs on 24 volts AC at 60 Hz, drawing 6 watts and 10 VA. The galvanized steel construction provides corrosion resistance suited to ductwork environments. Licensed HVAC technicians install this damper as part of a zone control system to regulate airflow to individual areas of a building.

The 6606 is part of the Aprilaire 6600 Series of zone dampers and is sized for round duct applications. It is compatible with both rigid metal duct and flexible duct installations. The adjustable blade positioning and integrated foam seal allow for flexible installation across a variety of round duct zone jobs, whether new construction or retrofit. It is rated for duct static pressure up to 1 inch water column, which covers typical residential forced-air system operating conditions. The 10.75-inch body length should be factored into available duct run clearances during layout.

Key Features

• Power-closed, spring-open operation provides fail-safe airflow on power loss
• Synchronous motor rated at 24 volts AC, 60 Hz, 6 watts, 10 VA
• Galvanized steel construction resists corrosion in ductwork environments
• Adjustable blade positioning accommodates varying zone control requirements
• Integrated foam seal reduces air bypass around the damper blade
• Compatible with rigid metal and flexible round duct

Compatibility

Part of the Aprilaire 6600 Series. Designed for round duct zoning applications compatible with rigid metal or flex duct. Suitable for use in residential and light commercial forced-air HVAC zoning systems rated up to 1 inch water column static pressure.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning controls. Disconnect power to the air handler and zone control board before installing or wiring the damper motor. Verify available duct run clearance against the 10.75-inch body length prior to installation. Wire the 24-volt motor leads to the zone control panel according to the panel manufacturer's wiring diagram and applicable local mechanical codes.

Technical Specifications

• Series: 6600 Series
• Shape: Round
• Motor Type: Power Closed, Spring Open, Synchronous
• Motor Voltage: 24 volts AC at 60 Hz
• Motor Power Draw: 6 watts, 10 VA
• Pressure Rating: 1 inch water column
• Length: 10.75 inches
• Material: Steel
• Finish: Galvanized

Standard Information

• Brand: RESEARCH PRODUCTS
• Manufacturer Part Number: 6606