On May 26, 2016 at 00:26, hdsystems said...
UL 325 added 3 requirements, in 2009, for remote operation.
The feature must be utilized only on an operator equipped with a secondary entrapment protection system such as a photoelectric sensor.
With the 8500 series they have both the photoelectric sensors as well as a force switch that must be installed and working. The force switch must be set and tested by the garage door installer. If you want to confirm the force switch is set properly, throw a 2x4 or similar device that will not block the sensors under the door (when open) and close the door. If the door returns to the open position then the force switch is installed and working properly, if the motor keeps trying to push down then call the door installer and tell him to come set the force switch.
The feature must be activated only when the operator is installed on a sectional door.
The only non-sectional doors I have seen are on huge agricultural drive sheds where they either install sliding doors or large hanger style doors that open out and up.
The operator must be equipped with an audible and visual warning system indicating a pending motion for 5 seconds before the door starts moving.
Install a small security siren and a 12v light connected to a relay on your automation system. When Garage Door button pressed close relay 1 for 5 seconds (triggers siren and light) after 5 seconds trigger relay 2 to control door. You are at maybe $20 for parts and maybe 1hour labour to install and test.
