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User questions
- What is the difference between Von Duprin LX and/or RX switches and the Signal Switch SS option?
- What ligature resistant trim is available on the ND or L9000?
- What types of steel are used in commercial steel doors?
- Is there a test to determine if a door or frame is galvannealed (galvanized) steel or cold rolled steel?
- Are there MSDS sheets for the batteries in the 900-BB?
- Why does my key cylinder spin and not lock or unlock the ND?
- Why does my key cylinder spin and not lock or unlock the ND?
- What is the most common practice for running electric power from a frame to the door and hardware?
- What is the part number for the SFIC tail piece for a W lock?
- What is the part number for T lock tailpiece used with a conventional cylinder?
- Which way is the tail piece of the rim cylinder is inserting into the Von Duprin 98/99 rim device from 996L trim?
- Reinstalling an AD-993 Tailpiece Holder Assembly
- Why will 912L not retract the latch bolt all the way?
- How do I wire an EL device to normally hold open the latch and release it during a fire alarm?
- What would cause an EL device to pull and release?
- How to adjust the 9847/9947 or 9848/9948 rod adjustment?
- What would keep the vertical rod exit devices top latch from being held retracted in the open position?
- Why would bottom latch on 98/9927 drop when top latch stays retracted?
- What is the part number for the former F588 from Monarch?
- What is the part number for 98/9927-F top latch less cover?
- Will the 18-V top latch work with a 25-V device?
- Can the old style 3327 top latches and rods still be purchased?
- Why is the 2390 top latch not staying retracted when dogged?
- Why will my EL 1490 fire my latches but not hold?
- What wire gauge and run is recommended for Von Duprin electric latch retraction EL device?
- What is in a 23538838 Tamper Torx Screw Pack for AD-Series Exit Trim?
- Can I cut an L or LP section blank in the field?