4
PRO-LT medium duty trolley operator is designed for standard lift overhead sectional garage doors
with low duty cycles.
STANDARD OPERATOR \VEIGHT: 40-45 Lbs.
MOTOR: Intermittent duty l 000 RPM motor with high starting torque.
-Thermally protected by a built-in thermostat that cuts power to the motor and control circuit
when overheating.
-Horsepower: l/2HP
-Voltage: I 15V, 220V I-phase
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ThIPORT ANT NOTE
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THIS MEDIUM DUTY OPERATOR IS DESIGNED TO OPERATR
x
A MAXIMUM OF 15 COMPLETE CYCLES PER HOUR.
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•
¾
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REDUCTION: Primary: (4L) V-belt and pulleys (1 .5'' to 7" diameter)
Secondary: #41 chain and sprockets
OUTPUT SHAFT SPEED: 90 RPM
DOOR SPEED: 9"/second
SOLENOID BRAKE (OPTIONAL): Solenoid Brake system available for model PRO-LTB
WIRING TYPE (STANDARD): C-2 Wiring constant pressure on close, momentary contact on open
and stop. Wired to accept reversing edge, radio control, photocells, loops and OPEN/
CLOSE devices.
NOTE: (if momentarv contact on close (B2) wiring is desired:
Re-install
the purple wire onto terminal #5.
TRANSFORMER: 24V AC control circuit, supplies power to drive control relays with 15V A power
available for external devices.
LIMIT ADJUSTMENT: 4 micro switches that control door travel. These lin1it switches are activated by
fully adjustable screw type cams.
EMERGENCY DISCONNECT: Quick release disconnect door arm to allow person to disengage
operator drive chain from door for manual operation.
CLUTCH: Adjustable friction clutch to minimize damage to door operator, door or vehicles.
OPERATOR DIMENSIONS:
0
DOOR HEIGHT PLUS 4 FEET
(MINIMUM)
I
�1---18-1/2'---
' HIGH ARC OF DOOR
7
10·
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11-7 /8'
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