LiftMaster H J LOGIC VERSION 1 Manual - Page 2

SPECIFICATIONS MOTOR TYPE Continuous duty HORSEPOWER 1/3, 1/2, 3/4 & 1 Hp Single or Three phase SPEED 1725 RPM VOLTAGE 115, 220, 230 Single phase 208, 230, 460, 575 Three phase CURRENT See motor nameplate ELECTRICAL TRANSFORMER 24VAC CONTROL STATION: ......NEMA 1 three button station. OPEN/CLOSE/STOP WIRING TYPE C2 (Factory Shipped) Momentary contact to OPEN & STOP, constant pressure to CLOSE, open override plus wiring for sensing device to reverse. See pages 13 and 14 for optional control settings and operating modes. LIMIT ADJUST Linear driven, fully adjustable screw type cams. Adjustable to 24 feet. MECHANICAL DRIVE REDUCTION:...Primary: Heavy duty (5L) V-Belt. Secondary: #48 chain/sprocket Output: #50 chain OUTPUT SHAFT SPEED: .....36 R.P.M. DOOR SPEED 6 - 7" per sec. depending on door BRAKE: (Optional Solenoid actuated disc brake BEARINGS Output Shaft: Shielded Ball Bearing. Clutch Shaft: IronCopper sintered and oil impregnated. HAND CHAIN WHEEL: .........Left or right handing Models H and HJ only. SAFETY DISCONNECT : Model J: Floor level disconnect for emergency manual door operation. Model H: Floor level chain hoist with electrical interlock for emergency manual door operation. Model HJ: Includes both floor level disconnect systems stated above. 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. WEIGHTS AND DIMENSIONS HANGING WEIGHT: .........80-110 LBS. 14.50" 7.25" 20.91" 8.00" 7.50" 13.00" 4.63 4.41" MOUNTING DIMENSIONS A - Wall Mounting B - Bracket Mounting (rolling door) 7.50" 6.63" A B 5.50" B 1.50" A B 13.75" B 16.50" Hand Chain Wheel present with Models H and HJ only. A A 4.75" 2