The Von Duprin 1609 cannot be used on a pair of fire rated doors. We recommend using the Von Duprin fire rated mortise exit device in lieu of the rim device such as the Von Duprin 5575-F,...
You should use the LX switch with the Von Duprin surface vertical rod exit device because the rods are exposed and are vulnerable to attack. IE, the top rod can be grasped and forced down to retrac...
Hardware falling off a door is caused by one or all of the following issues:
Field abuse
Improper internal reinforcements in the door
Improper field preparation
The top or bottom rod case can...
To convert the Von Duprin 98/99 Rim or Vertical (Rod or Cable) Exit Device with functional lever (996L-R/V) to act like a rigid lever (996L-NL-R/V) with key over ride follow these steps:
R...