11/23/2023 0 Comments Push to talk release delay meaning![]() Current codes require panic hardware to be mounted between 34 inches and 48 inches above the floor.Where panic hardware is required, the actuating portion of the device (touchpad or crossbar) must be at least half the width of the door leaf.As we’ll discuss later in this article, electric latch retraction may be used to electrically dog the latch on fire exit hardware, but the latch must project automatically upon actuation of the fire alarm. The dogging feature, which allows the latch to be manually held retracted, is not supplied on fire exit hardware because fire doors must have an active latchbolt to keep the door closed and latched during a fire. ![]() Fire exit hardware is a type of panic hardware that is tested and listed for use on fire door assemblies, in addition to the UL 305 listing. ![]() Panic hardware is listed in accordance with UL 305 – the standard for panic hardware, and is used on doors that are not fire rated. This does not apply to doors which require panic hardware because of the National Electrical Code, as this code only requires panic hardware on doors within 25 feet of the required working space. Keep in mind that when an application requires panic hardware, all of the doors in the means of egress from that room or area will typically require panic hardware, including the exit access, the exit, and the exit discharge. If a door is not equipped with a latch or lock (push/pull application), the door is not required to have panic hardware. The AHJ may request panic hardware in other instances if he or she believes that a particular hazard exists and panic hardware is required for life safety. The IBC includes requirements for panic hardware on some electrical rooms. Panic hardware or fire exit hardware may also be required for mechanical rooms such as boiler rooms, incinerator rooms, furnace rooms, and refrigeration machinery rooms. Previous editions of NFPA 70 include slightly different requirements for panic hardware on electrical rooms.
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