troubleshooting el device

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Question
Answer
The Von Duprin EL devices are rated for continuous duty.
The old MPB842 power supply will power up to two EL electric panic bars but will not power the QEL devices.  A defective potted module inside the electric panic bar or defective power supply coul...
 HD-EL (Hex Dogging Electric Latch Retraction) solenoid and plunger can be replaced with standard EL solenoid and plunger on non fire rated exit devices, but this should not be used on a daily basi...
The PS914 x 900-2RS option board doesn't have time delay. If time delay is required specify PS914 x 900-4RL. 900-4RL provides up to 75 seconds, 5 second  increment unlock time.
EL98/99-4 ft rim device required minimum of 35.2" with 5/8" stop height door opening on single door and 35.56" with 4954/9954 mullion.
 Electric latch retraction, EL, devices are only available in 24VDC.
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 900-2RS is recommended to be used with EL devices but if you have a 900-2Q with PS914 power supply it can be used to operate up to two EL or one EL and one QEL devices .
This is not possible as an EL device is an electric latch retraction and requires power to unlock the door thus only available in Fail Secure.
  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...
 
The new motor driven ND electrified locks shipped after March 14, 2016 do not require a solenoid. The Schlage ND-Series electrified locks shipped prior to March 14, 2016 would have used a...