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...
No, the back plate for 880K-knob trim is the same as for 373L-lever trim. Since 373L is a narrow style trim it require to use the 889 cover plate with this trim.
The 510L can be converted to a nightlatch 510L-NL by changing out a few parts to the trim. See 510L to 510L-NL conversion instructions for required parts that will need to be added/r...
The 912L trims produced after 2/28/2011can be re-handed in the field. See appropriate 912L instructions at 912L instructions for trims after 2/28/2011For 912L instructions on trims prior ...
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...