Standard Features:
Motor: Powerful 1/2 HP, single phase
motor with instant reverse and internal automatic reset thermal overload. Removable without affecting limit switch settings.
Auxiliary
Reversal System: Designed to protect the door and door operator from damage; if a closing door strikes an obstruction, the Auxiliary
Reversal System will detect the slip of the clutch and reverse the door to the full open position. This system is not a substitute
for a safety sensing device such as a photo cell or reversing edge.
Wiring Type: All operators are factory preset to C2 wiring providing
momentary contact to open and stop, with constant contact to close. Momentary contact to close (B2 wiring) can be easily set. The
operator is pre-wired to accept a sensing device, photoelectric control, radio controls and most types of access control equipment.
Rail
Assembly: High strength dual L-rail track with exclusive nylon quiet gliding chain guides on rail spacers for quiet, smooth operation.
Includes quick-mount header bracket which provides fast, swing-up installation.
Operator/Motor Control: Dependable dual relay system
(NEMA 1 enclosure).
Control Circuit: 24V NEC Class 2.
Drive Reduction: First stage heavy-duty 4L V-belt; second and third stages #48
chain; output on trolley #48 chain.
Emergency Disconnect: Spring-loaded disconnect for emergency manual operation.
Pushbutton Station:
3-button station for OPEN/CLOSE/STOP functions is standard for all operators. Controls with one, two and three buttons are available.
Construction: NEMA
1 type electrical box, heavy-duty 11-gauge steel frame with baked-on powder coat finish, all reduction sprockets drilled and pinned
to shafts.
Bearings: Heavy-duty, oil filled bearings.
External Radio Control Terminal: External terminals provide quick, convenient
connections for universal radio controls.
Friction Clutch: Adjustable friction clutch helps protect against damage to the door and
operator should the door meet an obstruction. Works in conjunction with the Auxiliary Reversal System.
Control Accessories and Options:
Solenoid
Brake: Solenoid actuated brake prevents coasting. Order operator BMT. Standard on 3/4 HP and higher.
Auto-Reconnect Trolley Assembly: Spring-loaded
trolley features nylon inserts for quiet operation and auto-reconnect feature eliminating the need to manually reattach the door arm
to the trolley after emergency disconnect.
Sensing Edge: (Recommended) Designed to sense an obstruction and signal door operator to
stop or reverse as desired. Either an electric or pneumatic sensing device can be added to bottom edge of door.
Radio Control: Universal
transmitters and receivers are available to signal the operator to open and/or close.
Key Switch: Designed to restrict operation of
door to authorized personnel only. Various types available.
Interlock Switch: Prevents accidental operation of the door by interrupting
the control circuit.
Commercial Protector SystemTM (Recommended): An inexpensive "non-contact" photo safety sensor designed to
sense an obstruction and signal the door operator to reverse to open.
