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“
what is storeroom latch
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Question
Answer
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 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 a lock function?
Resolution:
Apartment Corridor Lock function is defined as a lock where the latch bolt operated by lever from either side, except when outside lever is made inoperative by a stop or mechanical means other than...:
Explain the MA581 function
Resolution:
MA581 operation: Latchbolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Auxiliary latch deadlocks latchbolt when door is locked.:
Explain the ND80 function.
Resolution:
The 80 (Storeroom function) operates as follows: Key retracts latch (entrance by key only):
What locks are always locked on the outside?
Resolution:
The storeroom lock function is described as follows: Latch bolt operated by key from outside or by operating inside lever. Outside lever is always inoperative. The following are storeroom functi...:
What is the difference between the classroom and storeroom functions?
Resolution:
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...: