qel and chexit

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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...
SD is Special cylinder dogging in the center case of 98/99 rim and vertical rod non fire rated devices and is available with standard, EL, QEL, CX and ALK.
You may have a defective motor bracket, defective base plate or vertical rod could be out of adjustment.
The following could cause the QEL device to retract and release repeatedly: If this is a vertical rod type device, the vertical rods could be adjusted too short. Check rods for dead locking, ...
Applies only to Von Duprin QEL exit devices shipped after December 11th, 2014.1.0 amp inrush and a 0.14 amp holding current.