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How can a ceiling radiation damper be Classified by UL to UL 555C for use on an active blower air handling system? It must be dynamic.
Changes in the international building and mechanical codes have generated the need for safer ceiling radiation damper installations. DynaGuard is the first and only product developed exclusively from Metal-Fab that is able to meet these new code requirements.
In 2015, the International Code Council (ICC) made significant changes to the IMC and IBC, requiring the use of dynamic ceiling radiation dampers for systems where air movement is not effectively stopped in the event of a fire. The temporary solution was accomplished with costly electrical control systems known as micro switches that are unique to each building design. The simpler and more economical solution to the problem is provided by using the “dynamic” ceiling radiation damper or DynaGuard, which is now Classified by UL in accordance with the standard for Ceiling Dampers, UL 555C.
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