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Dedicated​ L864​ Active Compensated Stairwell
Pressurization Controller​ UL864​ Listed to​
 MORE INFO FSCS I/O​ 7” Color​
Touchscreen
 ABOUT The ACSP Active Compensated Stairwell Pressurization System from LFSystems changes how you control stairwell pressure. The L864 is designed to maintain a positive pressure in a high-rise building stairwell in the event of a fire. The L864 compares pressures in multiple zones and controls a listed stairwell pressurization fan as well as a relief damper to maintain the user determined range. The ACSP is designed to handle up to 12 floors on a single controller.​

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