why does el device misfire?

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The 900-2RS option board is used with PS914 power supply to isolate the inputs such as key pads or card readers from the outputs for EL electric exit devices.  The EL draws 16 amp inrush that needs...
Since most wire transfer devices such as an EPT or electric hinges cannot provide large gauge wires, we take the small gauge wire into account when determining the overall wire size for the device....
  For Product Shipped Prior to August 2012 using the old (black) potted module: a.       0-100 ft 14 gauge wire b.      0-200 ft 12...
 
Products shipped on or after August 8, 2012 no longer require the EL wiring adaptor. The ELK Wiring Adaptor (900ELK) was used only when using the PS914 power supply with either the 900-2RS or 900-...
The potted circuit breaker for the Von Duprin EL device does the switching from the 16 amp pull coil on the solenoid to the .33 amp holding coil of the solenoid.
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...
  Pushing on the push  bar or activating the EL/QEL or the trim on Von Duprin XP98/99 exit device does not retract the latch, it releases the latch only. Door must be pushed or pulled when device o...
Following could cause the fuse to blow in Von Duprin PS873 power supply. PS873 power supply provides 2AMP at 24VDC or 4AMP at 12VDC. If this limit is exceeded the fuse will blow in the power sup...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...