The Model CLBD bypass damper is an easy and economical way to manage system static pressure, in a zoned HVAC system. Damper adjustment is easily achieved by increasing or decreasing the force applied to the bypass damper blade, until the desired static pressure is achieved. Due to the constant load applied to the damper blade and the unique magnetic latch, the CLBD bypass damper can be installed in any position on your bypass duct work, to manage the HVAC system's static pressure during zoned operations. The CLBD minimizes bypass volume, while still preventing the HVAC system static pressure from rising above the selected static pressure set point. The CLBD is a basic, cost effective bypass solution for constant speed or variable speed zoned HVAC systems.