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OWNER'S MANUAL MODEL GH F A C T O R Y S E T C2 Wiring LOGIC CONTROL (VER. 2.0) See pages 14 and 15 INDUSTRIAL DUTY DOOR OPERATOR for other wiring configurations PATENT PENDING The Maintenance Alert System allows the installer to set an internal Maintenance Cycle Counter.
Mounting Instructions ......9 PACKING LIST Before beginning your installation check that all components were supplied and received undamaged. PACKING LIST K77-14334 PART # DESCRIPTION GH PARTS BOX 14-10896 19-10929-29 29 FT HAND CHAIN GH PARTS BAG 77-11090...
SPECIFICATIONS MOTOR ELECTRICAL TYPE: .........Continuous duty TRANSFORMER:.....24VAC Secondary HORSEPOWER: ....1/2, 3/4, 1, 1-1/2 Hp CONTROL STATION: ..NEMA 1 three button station 2, 3 HP OPEN/CLOSE/STOP W/ LED SPEED:.......1725 RPM WIRING TYPE:....C2 (Standard) Momentary contact to OPEN & STOP, constant pres- VOLTAGE: ......115, 220, 230 Single phase sure to close, plus wiring for sensing device to reverse 230, 380, 460, 575 Three phase...
WARNING The GH operator may be mounted on either the right (standard) or left side of door, and in either a vertical (stan- dard) or horizontal mounting position. Refer to the steps below if you require the hand chain and/or disconnect chain to be on the opposite side of the operator;...
OPERATOR MOUNTING Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The oper- ator may be wall mounted or mounted on a bracket or shelf. If necessary, refer to the operator preparations on page 3.
This operator has provisions for manually operating the door in case of emergency or power failure. Refer to the appropriate instructions below for your model operator. CAUTION CAUTION Model GH These operators are equipped with a manual hoist. An TURN OFF POWER TO THE OPERATOR BEFORE electrical interlock will disable the electrical controls MANUALLY OPERATING YOUR DOOR.
WIRING: For wiring of your sensing device to the ty device to your application, please contact your local operator, refer to the wiring diagram on pages 11-13. LiftMaster Authorized Dealer. See field connection terminals identified as Reversing Device. If not pre-installed by the door manufacturer, mount the sensing edge on the door according to the instructions pro- TAKE-UP REEL: Take-up reel should be installed 12"...
Failure to do so may result in severe injury to persons and/or damage to operator. The operator electrical box is only to be accessed by trained “LIFTMASTER” technicians. If service is required contact your local LIFTMASTER dealer.
On all models with B2 control wiring, a terminal bracket marked R1 R2 R3 is located on the outside of the electri- cal enclosure. Any commercial type LiftMaster brand receiver may be mounted to this bracket. The operator will then open a fully closed door, close a fully open door, stop an opening door, and reverse a closing door from the radio transmitter.
ADJUST TORQUE LIMITER CLUTCH (OPTIONAL MODIFICATION) 1. Loosen set screws on clutch nut. 2. Back off clutch nut until there is very little tension on the clutch spring. Tighten clutch nut gradually until there is just enough tension to permit the operator to move the (3) Set door smoothly but to allow the clutch to slip if the door Screws...
LOGIC CONTROL (VER. 2.0) 1 PHASE WIRING DIAGRAM 1837-1 230 VOLT MOTOR CONNECTION 115 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 VOLTS: ALWAYS EXCHANGE PURPLE &...
LOGIC CONTROL (VER. 2.0) 3 PHASE WIRING DIAGRAM 1837-3 380/460 VOLT MOTOR CONNECTION NOTE: 230 VOLT MOTOR CONNECTION Contactor 1 PH / 3 PH jumper should be in 3 PH position. Notes: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION: INTERCHANGE ANY 2 OF THE 3 POWER WIRES AT L1, L2 &...
LOGIC CONTROL (VER. 2.0) 1 PH WIRING DIAGRAM W/ CONTACTOR 1842-1 NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 &...
Refer to printed circuit board illustration on page 19 for all component locations. Before Programming the logic board, set the operators open and close limits. LEDs on the logic board are provided to assist setting the limits. As each limit is activated the corresponding LED will light up.
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See Self Monitoring Safety Device Options below. SELF MONITORING SAFETY DEVICE OPTIONS To use the operator in any of the Failsafe wiring modes, or Timer To Close wiring modes (TS, T, FSTS), a LiftMaster self monitoring safety device must be installed.
The auxiliary reversing benefits of the RPM sensor are designed to prevent excessive door and operator damage upon hitting a solid obstruction. LiftMaster recommends the use of safety devices for primary safety protection. To Program: 1. The open and close limits must be set before setting the RPM sensor.
STANDARD PROGRAMMING FEATURES CONT’D MAS (Maintenance Alert System) Press This To Get This Feature: An internal cycle counter will activate a flashing LED on the three- Adds 5,000 cycles to button control station when the preset number of cycles is reached. Setting this Maintenance Alert feature is optional.
OPTIONAL PROGRAMMING FEATURES CONT’D Timer To Close Feature: Installer can set a timer to automatically close after a preset amount of time once all safety devices are unobstructed. TIMER TO CLOSE Benefits: Door will automatically close after being used. Extremely conven- ient where users may not be concerned with closing the door.
TROUBLE SHOOTING Troubleshooting Guide SYMPTOM PROBABLE CAUSE RESOLUTION Each open command will open RPM sensor is not adjusted Reset the RPM sensor. Also the door about a foot and a half correctly. verify that the software is then stop, after reaching the open version 260 or better.
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TROUBLE SHOOTING STEP 2: To "unlearn" the photo eyes. The latest software automatically learns if direct connect photo eyes (CPS-L or CPS-LN4) are attached during the first open cycle of operation. If they are disconnected at some point after this, they must be unlearned. 1.
ARE AVAILABLE 6 DAYS A WEEK CALL OUR TOLL FREE NUMBER - 1-800-528-2806 MONDAY THROUGH FRIDAY 5 AM TO 6 PM (MST) SATURDAY 7 AM TO 3:30 PM (MST) WWW.LIFTMASTER.COM WHEN ORDERING REPAIR PARTS PLEASE SUPPLY THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER...
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REPAIR PARTS KITS – ELECTRICAL BOX LOGIC CONTROL (VER. 2.0) Below are replacement kits available for your operator. For replacement of electrical box, motor or brake components be sure to match model number of your unit to kit number below to ensure proper voltage requirements. Optional modifications and/or acces- sories included with your operator may add or remove certain components from these lists.
Close 1 BUTTON STATION OR ANY AUXILIARY DEVICE RADIO CONTROLS OPEN / CLOSE OPEN / CLOSE MODE ONLY LiftMaster Brand Receiver See Note SENSING DEVICE TO REVERSE OR STOP EXTERNAL INTERLOCK Either is acceptable When Interlock is Used Sensing Device...