Von Duprin troubleshoot top latch

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Answer
The part number for 98/9927/F top latch less cover is 050400.
Check the adjustment and if this does not resolve then you may possibly have a defective center case or bottom latch.
Use a normally closed fire alarm as the input to the power supply option board (PS873-2 or PS914-2RS), this will hold the latch retracted.  During a fire alarm, the contact will open, dropping...
The following items may cause the exit devices top latch from being held in the retracted position. 1. The top or bottom rods are out of adjustment. 2. The top latch hold back...
Following exit devices 2227/F, 33/3527A/F, 33/3547A/48A/F, 98/9927/F and 98/9947/48/F have similar rod adjustment procedures. All top latches control the bottom latch assemblies. When do...
The old style Von Duprin 3327 top latch and rod is longer available.  The part number for old 3327 top latch was 105339.