power assist vs door opener

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Locknetics company supplied electro-magnetic locking devices, electronic smart locks, and electronic security components to access control dealers and lock smiths.  Ingersoll-Rand acquired ...
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. &nbs...
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...