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night latch video
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RELATED FAQS
Question
Answer
Explain the holdback feature for the B250.
Resolution:
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...:
How do I convert the Von Duprin 360L control from nightlatch to classroom function?
Resolution:
To convert the Von Duprin 360L/TL from nightlatch to classroom or from classroom to nightlatch invert mortise cylinder cam.:
How do you change the Von Duprin 990TP trim to NL function?
Resolution:
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...:
How can the Von Duprin 98/9975-L with 996L classroom trim function be converted as a night latch function in field?
Resolution:
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 se...:
Can an 18-R-L be converted to L-NL function in the field?
Resolution:
Follow step 6 of the 18-R instructions to convert trim function to Night Latch(L-NL).:
How do I change the function of the Von Duprin 7500 mortise lock from Lever ( classroom ) to NL ( night latch )?
Resolution:
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...:
Why would the 996L trim not lock or unlock when installed with 98 or 99EO?
Resolution:
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...: