IF EL DEVICE RETRACTS AND LETS GO WITH NO TIME DELAY

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Answer
The capabilities of the auto operator and the required operation of the opening will affect the selection of a power supply.
The 900-4RL has two out put for EL devices and signals to the auto operators to open the doors. PS914 power supply is required with 900-4RL option board to operate the EL device and auto operato...
Von Duprin PS914 x 900-4RL supports two EL with two auto operator.
Chexit devices shipped prior to 8-24-2015 with solenoid driven could cause the Von Duprin CX solenoid to pull and drop and sound the alarm with solid LED or no LED light after the rear...
You can not use these options together on the same device per the following reasons: QEL/EL device retracts the latch bolt of the exit device allowing entry. CX (Chexit) device locks the p...
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.
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 ...
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...
The release delay time for the Chexit is programmed into the Chexit module and cannot be changed in the field. The Chexit module would need to be replaced to reduce the release time of the Che...
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...