EL wont hold

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If mechanism cover plate causes the EL solenoid to drop when slid over the solenoid, the solenoid plunger requires adjustment.  You must lengthen the rod by turning the hex nut in front of the plun...
To keep the Von Duprin electric latch retraction EL or QELA exit device dogged (retracted) all day, have your access control, Key pad, key switch, fire alarm contact or any other signals ...
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 Falcon EL devices can be operated in a continuous duty cycle.
(For best viewing, use Chrome or Firefox browser.)ALLEGION EL SOLENOID ELECTRIC LATCH RETRACTION TROUBLESHOOTING GUIDE IF DEVICE LATCH IS NOT RETRACTING PROPERLY WHEN POWERED, FOLLOW THESE STEPS I...
Some transformers in the power supplies provide a little humming noise and that is normal. If the humming in Von Duprin PS873 power supply is loud follow these steps. Remove the load from the outp...