Carrier DAMPBAR12INC Round Barometric Zone Damper 12"

Carrier DAMPBAR12INC Round Barometric Zone Damper 12"

Description:

• The Round Barometric Bypass Damper is used to limit air pressure in a zoning installation while closed zones would otherwise overly restrict the airflow, allowing pressure to build.
• Air is taken from the supply plenum to relieve pressure buildup.
• The reason for limiting pressure is only to limit air noise to a level acceptable to the homeowner.
• If noise is never objectionable, the damper will never need to open and could be eliminated.
• However, since many factors influence air noise, it is good practice to install a bypass unless the designer is certain that it is not needed.

General Features:

• Carrier zone dampers are the latest in design and were developed to fit field requirements for a variety of duct work shapes and sizes.
• These dampers use 24 VAC direct drive actuators for smooth, quiet performance.
• There is a 1/2--in. Direct--drive mounting hub for securing the damper blade and shaft to the actuator housing.
• A position indicator and angular rotation stop for viewing or manually setting minimum maximum damper positions facilitate ease of installation.
• A spring loaded disengagement button to momentarily release main gear and damper blade allows for manual positioning of installed dampers.
• The damper motor and terminal block wiring are protected by a plastic cover with a removable door.
• Permanently lubricated bushings, with a split shaft design for round and rectangular style dampers, secure the damper blade to the shaft for efficient reliable service.