For the protection of vehicles doors and safety of people.
Any upward-acting door may be fitted at the leading edge with an electro-mechanical safety weatherstrip.
This mechanism consists of a formed galvanized steel section covered with vinyl impregnated rubber hinged along the full width of the leading door edge.
Can be adjusted to approximately 2½" (63.5mm) to form a tight weather seal.
The hinge linkage is arranged that minimum pressure is required to activate the electrical control switch causing door to reverse direction of travel to the fully Open position.
Reverse switch is enclosed in a galvanized housing with a sliding plunger to assure positive actuation every time.
For doors up to 14 ft. wide one switch is required. Over 14 ft. two switches are required.
Die cast metal enclosure with BEST cylinder (construction core included)
OPEN/CLOSE spring return to center (OFF) key removable in center position only. Should only be used on operators wired for constant pressure to open and close (all LiftMaster industrial operators with type D control wiring).
May be used in two different ways: as an OPEN only control (all LiftMaster operators) or as an OPEN/CLOSE control (only LiftMaster operators with types B2 and S2 control wiring).
In the latter case pulling the cord will open a fully closed door close a fully opened door and reverse a closing door.
Pulling the cord whlie the door is opening will either have no effect (type B2 wiring) or will stop the door (Solid State Logic Control Board).
Die cast metal enclosure with standard key cylinder
OPEN/CLOSE spring return to center (OFF) key removable in center position only. Should only be used on operators wired for constant pressure to open and close (all LiftMaster industrial operators with type D control wiring).