Today’s Fixed-it Friday photos remind me of a problem that I had on a university project many years ago. The plans indicated that the doors would have credential readers, so I specified Von Duprin QEL (quiet electric latch retraction) panic hardware. The problem was that the access control system was planned to be installed at a future date TBD, and the hardware I specified had no means of being left unlocked while the building was open during the day. If I had known, I would have specified the “SD” special dogging feature, which goes on the center case assembly of the panic hardware to avoid conflicting with the QEL components in the mechanism case.
It’s a good question to ask during a project meeting…when will the access control system go live?
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A building I used to work in had an office that had card access during construction, but immediately following construction, it was removed. Electric mortise locks replaced with the normal kind, and a blank one-gang plate where the card reader used to be. One employee refused to get an employee ID card or use the card access system, and her boss was more than happy to accommodate her.
I always specify QEL devices with “HD” for hex dogging – no additional cost and the function is there is they need it.
Looks like a Fire Corridor can’t have Dogging.
Use a Classroom function Trim. Key can lock or unlock the Lever Trim.
996L-M x 98/9975 (Mortise) x 98/9947 (CVR) or 98/9927 (SVR) not the best setup requires Door Coordinator, Carry Bar & Open Back Strike.
Maybe it’s a Mortise Lock x Automatic Flush Bolts?
Why does this opening have Maglocks?
Use 2 SVR or CVR each door can open and close independent from the other door.
(No Door Coordinator, Carry Bar & Open Back Strike Needed).
Even Better use a Key Removable Mullion with 2) 99 Rim Exit.
More Secure, Less Adjustments.
This is likely for a server room given the fire suppression system referenced on the signs.
PS: Separately from this I’ve seen an installation (exterior door at a university) where the panic hardware was ziptied to keep the door unlocked when the access control system wasn’t live yet.