LiftMaster GH5HP Owners Manual - Page 2

SPECIFICATIONS MOTOR TYPE AC Synchronous continuous duty brake motor ENCLOSURE ODP NEMA 184TC face mount. HORSEPOWER 5 HP Three phase SPEED 1725 RPM VOLTAGE 208/230 & 460 Three phase OR 575V Three Phase BRAKE HOLDING FORCE 15 Ft-Lbs DRIVE SYSTEM CONTINUOUS POWER RATING 1000 Ft-Lbs/Sec GEAR BOX Worm gear LUBRICATION Oil Bath RATIO 45:1 OUTPUT SPEED 38 rpm DOOR SPEED 5" per sec. depending on door OUTPUT SHAFT 1.5" Dia. with 3/8" keyway OVERHUNG LOAD 1752 Lbs. (1.5" from output bearing face) HOIST WHEEL Standard mounting on left or right side. DISCONNECT Floor level chain hoist with electrical interlock for emergency manual door operation. ELECTRICAL TRANSFORMER 3PH: 208/230/480 VAC 24VAC OR 3PH: 575VAC-24VAC CONTROL STATION: ........NEMA 1 three button station. OPEN/CLOSE/STOP WIRING TYPE Standard C2 Wiring- Standard operators are shipped from the factory set for C2 wiring, which requires momentary contact to open, constant pressure to close, stop on release. Optional B2 Wiring- Which requires momentary contact to open, close and stop. See schematic diagram on page 12 for instructions on how to configure the operator for B2 wiring Wiring for sensing device to reverse and auxiliary devices to open and close with open override. LIMIT ADJUST Rotary driven, fully adjustable screw type cams. Adjustable to 50 feet. (Provides 2 minutes of operator running time). DUTY CYCLE 25 Reversing cycles per hour DELAY ON REVERSE:.......Standard SAFETY REVERSING EDGE:.......(Optional) Electric or pneumatic sensing device attached to the bottom edge of door. A REVERSING EDGE IS STRONGLY RECOMMENDED FOR ALL COMMERCIAL OPERATOR INSTALLATIONS. REQUIRED WHEN THE 3 BUTTON CONTROL STATION IS OUT OF SIGHT OF DOOR OR ANY OTHER CONTROL (AUTOMATIC OR MANUAL) IS USED. SHOULD THE CHAIN OR OPERATOR FAIL AS AN ADDED SAFETY FEATURE, IT IS RECOMMENDED TO USE STOP LOCK BEARINGS ON THE DOOR SHAFT TO PREVENT THE DOOR FROM CRASHING DOWN. WEIGHTS AND DIMENSIONS HANGING WEIGHT:.......300 LBS. 18.00" 40.25" See Note #1 8.50" 2.38" Hand Chain Wheel NOTES: 1) Output Shaft 1.5" Dia. with 3/8" Keyway. 26.38" 2 7.87" 11.61"