NIGHT LATCH CYLINDER

RELATED FAQS

Question
Answer
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...
The B250 Night Latch is a single cylinder deadlocking latchbolt where the latch is retracted by a key from the outside or by the inside thumbturn. Rotating the thumbturn and activating the hol...
NL-OP, Night Latch Cylinder Assembly - Optional Pull, Optional Pull
To convert the Von Duprin 360L/TL from nightlatch to classroom or from classroom to nightlatch invert mortise cylinder cam.
The 98/99 rim and vertical rod exit devices are shipped with NL drive screw to function as a Night Latch. To convert the device to Class Room, remove the NL Drive Screw on 98/99 center case ass...
Recommend to order a new 990NL-R/V or M trim to change from TP/Classroom function to NL/Storeroom function. You will also need to reinstall the NL drive screw back into into the mast...
The following steps are required to convert the Von Duprin 98/9975L from classroom to night latch function: Order new 996L-NL-M trim and reset NL drive screw in mortise lockbody as set from...