RCI Makes Delayed Egress Simple
It is universally against code to prevent free egress. However, under special arrangements and conditions, it may be allowable to delay egress a little bit. RCI’s new DE 8310 delayed egress system can do the job.
Delayed Egress locking systems are special locking arrangements used for applications where security requirements must be mitigated with life safety concerns, not where life safety requirements must be mitigated with security concerns. They are used for loss prevention applications to...
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HOW DELAYED EGRESS WORKS
Someone attempts to egress through the door. In the case of the DE 8310, it is triggered by an integral sensor when pressure is applied to the door.
If enabled, the pressure must persist beyond a pre-programmed nuisance delay time. A local alarm may sound to warn persons who try to open a door that is not meant to be used except for emergency. If the person stops pushing before the nuisance delay expires, then the exit sequence is cancelled. If the pressure persists beyond the nuisance delay, then the exit sequence is initiated.
If connected, a remote alarm results, and the system starts to countdown. The countdown is either 15 or 30 seconds. The DE 8310 permits the connection of an optional voice module which announces the various levels of alarm. An integral LED indicates what state of alarm the lock is in as well. At the end of the delay, the door unlocks.
What happens next depends upon the particular building code. Remember, there may be more than one LAHJ you need to contact. He, she or they have the final word.
1. STANDARD BUILDING CODE
Nuisance Delay: Not allowed.
Release Delay: 15 seconds or extended to 30 seconds with local approval.
Relocking: Actuates after door opens and closes, using a door switch rather than a key switch. Please connect normal open door switch to system Reset Switch Input (RSI).
2. NFPA 101
Nuisance Delay: Permitted up to 3 seconds.
Release Delay: 15 seconds or extended to 30 seconds. with local approval.
Relocking: To be done manually by a key switch. A door switch cannot be used for relock. Connect a momentary spring loaded normal close key switch to system RSI.
3. UNIFORM BUILDING CODE
Nuisance Delay: Required to be set at 2 seconds.
Release Delay: Required to be set at 15 seconds.
Relocking: To be done manually by a key switch and must be located at the door. A door switch cannot be used for relocking. Connect a momentary spring loaded normal close key switch to system RSI.
4. BOCA
Nuisance Delay: Required to be set at 1 second.
Release Delay: 15 seconds or extended to 30 seconds with local approval.
Relocking: Dip switch 4 must be in the OFF position to activate the relocking system. After the Release Delay expires, the door unlocks and opens; the door switch changes state and remains open. When the door recloses, a relock delay of 30 seconds begins. If the door hasn’t been disturbed or open again during these 30 seconds, it will relock. If it has been opened again, a 30-second relock will start all over again. The relock time count will not start until the door is closed.
5. NATIONAL BUILDING CODE OF CANADA
Nuisance Delay: Not allowed.
Release Delay: Required to be set at 15 seconds.
Relocking: To be done manually by a key switch. A door switch cannot be used for relock. Connect a momentary spring loaded normal close key switch to system RSI.
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