Aprilaire 6616w3 Zone Damper Power Open Power Closed 16 Inches 3 Wire

Product Description

The Aprilaire 6616w3 is a 16-inch round zone damper designed for use in residential and commercial HVAC zoning systems. It operates on a power open and power closed configuration with a 3-wire control setup. This means the damper requires a powered signal to both open and close the blade, giving the zone controller precise and reliable command over airflow in each zone. HVAC technicians and contractors trust this type of damper when installing multi-zone forced-air systems where independent temperature control is needed in different areas of a building. The 6616w3 fits into 16-inch round ductwork, making it suitable for larger main trunk lines or high-volume branch runs that serve multiple rooms or large open spaces. Zone dampers like this one are a core component in zoned HVAC systems, working alongside a zone control board, thermostats, and bypass dampers to balance air distribution and improve comfort and energy efficiency. The power open and power closed design provides a failsafe advantage over spring-return models in applications where the system needs to maintain the last commanded position during a power interruption. The 3-wire wiring configuration connects to most standard zoning control panels and is compatible with common residential and light commercial zoning boards. The silver finish and durable construction make it a professional-grade solution built for long-term installation in concealed duct systems. HVAC installers working on new construction, HVAC retrofits, or zoning upgrades will find the 6616w3 a reliable and straightforward component for controlling airflow in forced-air systems. It supports efficient zone control, reduced energy waste, and improved occupant comfort throughout the conditioned space.

• 16-inch round zone damper with power open and power closed operation for precise zone airflow control
• 3-wire control configuration compatible with standard residential and commercial zoning control boards
• Designed for installation in forced-air duct systems requiring multi-zone temperature management

Product Highlights

The Aprilaire 6616w3 delivers reliable powered zone damper control in 16-inch ductwork, supporting accurate airflow management in multi-zone HVAC systems with a straightforward 3-wire hookup.

Product Information

Standard Information

• Brand: APRILAIRE
• Manufacturer Part Number: 6616w3

Technical Specifications

• Size: 16 inches
• Operation Type: Power Open / Power Closed
• Wiring Configuration: 3 Wire
• Color: Silver
• Product Type: Zone Damper
• Category: HVAC Zoning Controls
• UPC: 68672006616