power assist vs door opener


The programming processes for Allegion devices can be both product and features specific.  Some products programming processes are electronic in nature, others are physical in nature. &nb...
The 4630/4640 Series operator is designed/recommended for a door that will see mostly manual traffic with the occasion automatic/ handicap operation.
A 4040SE would not hold the door open if it has : No Voltage or Improper Voltage. Check that the track has proper voltage going to it (24V AC/DC or 120V AC). If 120 volts is supplied...