Glossary of Terms

Glossary of Terms

Term	Definition
Bearing Plate	The Bearing Plate acts as a support for the torsion bar. The bearing and mounting plate are typically located above the garage door.
Cable Tension Monitor	Cable Tension Monitor detects any slack in the garage door cables. Failure to properly install the cable tension monitor may cause the cables to be thrown and may result in a hazardous situation.
Door Seal	The door seal is located at the bottom of the door and helps to keep outdoor elements from entering the garage.
Drum	Drums are round, grooved spools on the torsion bar that keep door cables orderly.
Extension Springs	Extension springs are typically mounted along the horizontal section of the track and extend from the front of the door opening to the back hang. The springs are intended to make a door lighter so you can easily open and close the door by hand.
Force Adjustment	The force setting measures the amount of force required to open and close a garage door; it is set using the button on the motor unit’s back panel.
High Lift Sectional Door	A type of garage door constructed with multiple panels that slide along a track inside the garage. The track runs vertically up the wall beyond the top of the door opening several inches before encountering the curve in the track. The extended distance above the top of the garage door determines the amount of a high lift.
LED	Light Emitted Diodes (LED) are the light indicators found on some products such as the garage door opener and door controls. LEDs typically indicate a status or help to diagnosis an issue.
LEARN button	The LEARN button is used to program a product. The LEARN button is found on some products such as the garage door opener and door controls.
PIR	Passive Infrared Sensor (PIR). Some of our products use a PIR sensor.
Polarity	Polarity is the state either positive or negative (two poles) with reference to electrification.
RPM	RPM Revolutions Per Minute (RPM). Some of our products use an RPM sensor.
Roller	Rollers are small wheels which allow the door to move up and down the track.
Safety Reversing Sensor	The safety reversing sensors are a set of sensors that detect obstructions in the path of the garage door. If an obstruction is found, the sensors tell the opener to reverse direction.
Torsion Springs	A torsion bar is a horizontal metal bar mounted above the garage door. The torsion springs are located on the torsion bar. Most torsion bars are hollow, while some are solid. Some solid torsion bars may have a groove called a keyway that runs the length of the bar.
Travel Limits or Limit Switch	Regulates the points at which a garage door will stop when moving up or down and are should be set when the garage door opener is installed.