These are classified into more than 20 types using codes developed by door hardware group bhma.
Classroom function door hardware.
However it does have the ability to be left unlock but only with a key.
Classroom functions in detail.
The function or mechanical behavior of a lock especially a mortise or cylindrical lever lock should be specified for an opening.
Classroom function is used for exactly what you would think a classroom.
Much like to the storeroom function lockset this lock does not have a button on the inside.
How functions are typically specified.
There is no button on the inside like there is for the entrance lock function.
Different lock functions.
Classroom lock vs office lock function.
What does classroom functions mean.
Door hardware function the following list shows different door lockset functions.
Classroom lockset the latchbolt is retracted by the grip on either side unless the outside grip is locked by the outside key.
This is something i don t see covered much on this blog i mainly see the classroom function levers but when you have high occupancy or hazard rooms you need panics.
Classroom doors during a lockdown event.
Different lock functions.
Class room lock unlock key unlocks the outside lever and stays unlocked until you relock the lever with the key.
54 may 2015 doors hardware.
The inside lever is always free to operate the latch bolt for egress.
The lock can be left in the locked or unlocked state by using the key and there is no means of locking or unlocking the door from the inside.
When key is removed the latch will extend and locks the door momentary unlock.
A classroom function deadlock is often used with push pull hardware on entrance doors to multi stall bathrooms and i ve had several code officials question their use over the years.
Manufacturers may use various terminology but these are standard terms.
Fortunately the vast majority of locks specified.
Night latch nl key retracts the latch momentarily to allow entry.
Understanding lock functions determining which lock function is appropriate for which door can.
Refer to specific manufacture data prior to specifying types.
The outside lever is locked or unlocked with a key.
On doors with panic hardware there is a turn knob on the inside to lock or unlock the outside handle or dog undog the latch.
Are storeroom function locks allowed on fire exit doors.
In all cases once i explained how the lock worked the code official allowed the application.
A classroom lock function is obviously used most often on classroom doors.
Or in the case of a classroom function deadbolt the thumbturn will retract the.