pneumatic latch retraction

RELATED FAQS

Question
Answer
The Von Duprin Pneumatic PN98/99 series exit devices feature provides remote latch bolt retraction in hazardous areas where electrically operated devices would not be permitted.
The Von Duprin Pneumatic or "PN" device was designed for Intrinsically Safe Class 1, Division 1 applications.
  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...
The resistance readings for a Falcon 24 or 25 Series EL solenoid should read;Green to Yellow = Pull Coil, should measure between 1 and 2 ohms of resistance. Green to Orange = Hold Coil, s...
The latch bolt on an XP98/99 exit device does not retract. The latch bolt will release and pivot out of the way when push bar is depressed or out side trim is activated.
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 Von Duprin PS914 power supply must be used on the EL devices with either the 900-2RS or 900-4RL option board since the EL devices requires power supplies set at 24VDC to be able to provide the ...
  You can use a Von Duprin PS914 power supply with any of the following option boards depending on the application. 900-2RS board  will power 1 or 2 devices that do not require timing from pow...
The Von Duprin EL option can be added to any existing 33A/35A, 98/99 series exit devices. 
There is no EL conversion kit for a 2390, the device will need to be replaced.
- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device.  Be sure this screw is installed- Exit hardware and strike must be properly mounted ...