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“
rehand classroom thumbturn
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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...:
What is the part number for a mortise thumbturn for rose trim?
Resolution:
The thumbturn for rose trim is specified by 09-509 and the Dim, see table below. Dimension Chart: 09-509 Thumbturn Part Number Door Range Dim 09-509 1 3/8" ...:
B663 only throws bolt and wont retract it.
Resolution:
After installing a classroom deadbolt, there is potential for the thumbturn to project the bolt only, get stuck in one position, or move both directions but not move the bolt. These are caused fro...:
Does Von Duprin offer a classroom security option with visual status indication?
Resolution:
Von Duprin offers two options: The CDSI/HDSI Dogging Indicator provides an at-a-glance verification of the status of the door from inside of the room. Visible “LOCKED” and “UNLO...:
How does a classroom deadbolt lock operate?
Resolution:
Classroom Deadbolt Lock (ANSI Function: E0171 for B663/763/863 and D111, E0172 for B563 and D211 )Deadbolt thrown or retracted by key outside. Inside turn unit will retract bolt only. Bolt au...: