RM Manifold

Parent Company for US Draft, LF Systems and KW Draft

[SLTNS Engineered Systems® @SLTNSengsys]

New York City permits buildings with only one exit stairway but does not mandate that these stairways be pressurized for smoke control. The DoB (@NYC_Buildings) should update the building code to include this life safety feature in future revisions. #SingleEgressSafety

[SLTNS Engineered Systems® @SLTNSengsys]

As smoke control systems, the controllers making decisions for stairway and elevator pressurization systems must be listed to UL 864. (IBC 909.12) 3/3

[SLTNS Engineered Systems® @SLTNSengsys]

Since the publication of the 2015 International Building Code, both stairway and elevator hoistway pressurization systems have been defined as smoke control systems and are required to comply with Section 909. (IBC 909.6.3) 2/3

[SLTNS Engineered Systems® @SLTNSengsys]

Regarding stairway and elevation hoistway pressurization systems, did you know that using a pressure transducer wired to a "smart" VFD is a code violation in almost every jurisdiction in the United States? 1/3

[RM Manifold @RMManifold]

A short educational video from @LFSystemsNet