Another ZoneFirst innovation to the industry, the Static Pressure Adjustable Damper, Model SPAD, is a single blade, counter-balanced spring damper that operates on air pressure in order to control the flow of by-pass air on a zoned system. The SPAD utilizes an adjustable knob/blade to maintain the correct amount of pressure in the duct system. The SPAD allows for setpoints between 0.2 inches W.C. of pressure to 1.inch W.C.
- Available in round dampers only: 8″, 10″, 12″, 14″.
SPAD Install Instructions
SPAD Installation (Spanish)