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“ Night latch in conjunction with chexit ”

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...:

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...:

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...:

How do you convert the Von Duprin 370 series controls to NL or night latch function?

Resolution: 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...:

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 the Von Duprin WS98/9927 exit device be operated as Night Latch function?

Resolution: We do not offer a true night latch, storeroom or ANSI "03" function with this device. (Entrance by trim when latchbolt is retracted by key. Key removable only when locked.) This function would da...:

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...:

What is the difference between Night Latch (NL) and Class Room function?

Resolution: Night Latch (NL)= key retracts the latch momentarily to allow entry. When key is removed, the latch will extend and locks the door (momentary unlock). Class Room (Lock/ Unlock)= key unlocks...:

Can the Von Duprin 230L trim be converted to a Night Latch function?

Resolution: We do not offer the 230L with night latch function. There is no conversion available. :

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“ Night latch in conjunction with chexit ”

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