To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory):
Turn the NL ...
To convert the Von Duprin 9975L to 9975NL exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory):
Turn the NL screw on 7500 mortise lock counter clo...
* NOTE: the AD300/400 devices simply communicate the change in Deadbolt Position status to the Host software. The software then decides what action should or should not be taken at the device.
To convert a Schlage mortise L9080 function to a L9070 function purchase and replace the following:
L283-133, L9070 lock case
L283-040, spring cage (for outside lever)
You must have the Von Duprin NL Cylinder plate part number 967484-89 to convert the 370 series controls from classroom function to night latch function. If new installation, use the NL cylinde...
ANSI F84 Classroom Lock
Outside lever locked and unlocked by key. Inside lever always unlocked for immediate egress.
ANSI F86 Storeroom Lock
Outside lever fixed. Entra...
Remove the NL spring and add the locking spring 661567. For reference, do the reverse of what is shown in this instruction:
https://us.allegion.com/content/dam/allegion-us-2/web-documen...