Intro to Door Hardware: Von Duprin Exit Device Trims

[@ParkerHoar]

The visuals for this introduction to exit hardware do not support or enhance the concepts being addressed. Why not create visuals that ILLUSTRATE the functionality of each exit hardware configuration? Instead we are looking at someone's back of head and feel-good ambiance sketches which are distracting because we're all looking and waiting for and illustration of the various hardware types. Hope your technical support is more helpful in person. Please update. Thank you!

[@chadrowland5234]

I typically like to use NL (night latch) trims and cylinder dogging on classrooms because it is the simplest. The night latch trim unlocks the classroom door momentarily so the teacher can pull it open and to allow students to enter the room, the teacher can use the dogging feature. If there is an emergency or when it's time to lock up, the teacher can simply undog the device. The cylinder dogging prevents unauthorized lockdown. One variation is where I use QEL with a card reader on both sides of the classroom door...outside is set up for momentary and the inside is maintained. The momentary outside card reader activates the QEL momentarily so the teacher can pull the door open and the inside maintained card reader activates and maintains operation of the QEL so students can come and go. When the time comes to relock the door, the teacher can simply swipe the key card inside to de-activate the QEL. The card reader also prevents unauthorized lockdown.