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von duprin night latch
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RELATED FAQS
Question
Answer
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...:
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...:
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 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...:
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. :
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...:
Is there a Von Duprin conversion kit to change mechanical to electric latch retraction EL in the field?
Resolution:
Followings are the list of the electric latch retraction EL/HDEL (hex dogging), QEL (quiet) kits: 114317-00 QELA Mod. Conv. Kit 040061-00 QELA Mod. Conv. Kit...:
What is the difference between LR and PL latches on Von Duprin 8827 exit devices?
Resolution:
ES (electric strike) latch is only used with the 8827 less bottom rod on a non fire rated exit device with a 6111 electric strike.:
What is the difference between Von Duprin 98/9947 and 98/9948 concealed vertical rod devices?
Resolution:
They both use Template # 10320_c:
Is a Von Duprin or Falcon EL device available in 12V?
Resolution:
Electric latch retraction, EL, devices are only available in 24VDC. (Note: The EL option for 24/25 series and related service parts have been discontinued as of 7/25/2022):
Can the Von Duprin EL option be added to any existing 98/99 device?
Resolution:
The Von Duprin EL option can be added to any existing 33A/35A, 98/99 series exit devices. :
Can Von Duprin QEL/EL and CX be in the same device?
Resolution:
You can not use these options together on the same device per the following reasons: QEL/EL device retracts the latch bolt of the exit device allowing entry. CX (Chexit) device ...:
Why doesn't full rotation of the AD or CO Series Exit Trim (993) outside lever fully retract the Von Duprin 98/99 Exit Device latch?
Resolution:
- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device. Be sure this screw is installed- Exit hardware and strike must be properly mounted ...:
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.:
What are the differences between the Von Duprin 47 and 48 latch assemblies?
Resolution:
The following list explains the differences between the Von Duprin 47 and 48 latch assemblies.The 47 top latche has 5/8" throw latchbolt.The 48 top latch had 3/4" throw latchbolt for devices shippe...:
Does Von Duprin have a fire latch that will go into the floor?
Resolution:
Auxiliary fire latch is tested only from door to door latching by Von Duprin. Some door manufacturers have tested our devices LBR and use additional fire latches to pass the fire test. Contact the ...:
How does the latch bolt retract on the Von Duprin XP device?
Resolution:
The latch bolt on an XP98/99 exit device does not retract. The latch bolt will release and pivot out of the way when push bar is depressed or out side trim is activated.:
How do I wire an EL device to normally hold open the latch and release it during a fire alarm?
Resolution:
Use a normally closed fire alarm as the input to the power supply option board (PS873-2 or PS914-2RS), this will hold the latch retracted. During a fire alarm, the contact will open, dropping...: