Research Products 6818 Rectangular Zone Damper with Motor

Product Description

The RESEARCH PRODUCTS 6818 is a rectangular zone damper with an integrated synchronous motor, designed for use in residential and light commercial HVAC zoning systems. It operates on a power-closed, spring-open actuation cycle driven by a 24 VAC, 60 Hz synchronous motor rated at 6 watts and 12 VA. The galvanized steel construction provides corrosion resistance in ductwork environments. Measuring 21-7/8 inches wide by 7.813 inches in height, the 6818 uses bottom mounting and carries a pressure rating of 1 inch water column (in-WC). Licensed HVAC technicians install this damper as part of a multi-zone forced-air system to independently regulate airflow to individual zones.

The 6818 is suited for residential zoning applications and light commercial forced-air systems where rectangular duct configurations are standard. Its spring-open failsafe design ensures that a loss of power defaults the damper blade to the open position, maintaining airflow to the zone. Bottom mounting accommodates typical horizontal and vertical duct installations. The synchronous motor delivers consistent, repeatable blade positioning when controlled by a compatible zoning panel or zone controller operating at 24 VAC.

Key Features

• Power-closed, spring-open actuation provides failsafe open operation on power loss
• Synchronous motor rated at 24 VAC, 60 Hz, 6 W, 12 VA for reliable zone control
• Galvanized steel construction resists corrosion in ductwork environments
• Rectangular profile at 21-7/8 inches wide by 7.813 inches in height fits standard rectangular duct openings
• Bottom mounting design for straightforward installation in horizontal and vertical duct runs
• Rated to 1 in-WC static pressure for residential and light commercial system pressure ranges

Compatibility

Designed as an OEM-style rectangular zone damper for residential and light commercial forced-air HVAC zoning systems requiring a 24 VAC synchronous motor-driven damper with bottom mounting.

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 panel before beginning installation. Verify the duct opening matches the damper dimensions before securing, and confirm the zone controller output is rated for 24 VAC synchronous motor loads. Follow applicable mechanical codes and manufacturer wiring guidelines when connecting the low-voltage motor leads to the zone panel.

Technical Specifications

• Shape: Rectangular
• Width: 21-7/8 inches
• Height: 7.813 inches
• Motor Voltage: 24 VAC at 60 Hz
• Motor Wattage: 6 W
• Motor VA Rating: 12 VA
• Motor Type: Power Closed, Spring Open, Synchronous
• Pressure Rating: 1 in-WC
• Material: Steel
• Finish: Galvanized
• Mounting Type: Bottom

Standard Information

• Brand: RESEARCH PRODUCTS
• Manufacturer Part Number: 6818