How do you change the Von Duprin 990TP trim to NL function?

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 master cam if you have a rim, surface or concealed vertical rod exit device or reset the drive screw in the mortise lock body if you mortise lock exit device.

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