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.
Classroom function door hardware.
Class room lock unlock key unlocks the outside lever and stays unlocked until you relock the lever with the key.
Classroom lock vs office lock function.
Different lock functions.
Difference between ansi and bhma.
Refer to specific manufacture data prior to specifying types.
Classroom doors during a lockdown event.
Fortunately the vast majority of locks specified.
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.
When key is removed the latch will extend and locks the door momentary unlock.
How functions are typically specified.
What does classroom functions mean.
Door hardware function the following list shows different door lockset functions.
This function was originally designed for schools to prevent students from tampering with the lock but most new schools have classroom security locks office function locks or electrified locks.
The function or mechanical behavior of a lock especially a mortise or cylindrical lever lock should be specified for an opening.
In all cases once i explained how the lock worked the code official allowed the application.
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.
There is no button on the inside like there is for the entrance lock function.
54 may 2015 doors hardware.
Or in the case of a classroom function deadbolt the thumbturn will retract the.
The inside lever is always free to operate the latch bolt for egress.
Manufacturers may use various terminology but these are standard terms.
However it does have the ability to be left unlock but only with a key.
A classroom lock function is obviously used most often on classroom doors.
Different lock functions.
Classroom lockset the latchbolt is retracted by the grip on either side unless the outside grip is locked by the outside key.
Classroom function acts like vestibule.
Night latch nl key retracts the latch momentarily to allow entry.
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.
Classroom function is used for exactly what you would think a classroom.
The outside lever is locked or unlocked with a key.
These are classified into more than 20 types using codes developed by door hardware group bhma.
Much like to the storeroom function lockset this lock does not have a button on the inside.