l vs nl

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The E7500 electric mortise lock body supplied on E98/9975 devices require active trims (L, L-BE, TP, TP-BE, K, or K-BE) to retract the latch after the electronic lock body unlocks.
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...
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: Remove ...
To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL ...
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...
To convert a 98TP to a 98L-NL you must purchase the 996L-NL trim and an NL drive screw (090074) to install in the master cam.
To change the function from TL to NL on 360L trim, invert the cam on the mortise cylinder.  See attached instruction 360L trim instruction.