Chamberlain GH Owner's Manual
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Chamberlain GH Owner's Manual

Chamberlain GH Owner's Manual

Industrial duty door operator
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See also: Owner's Manual , User Manual
INDUSTRIAL DUTY DOOR OPERATOR
2 YEAR WARRANTY
Serial #
(located on electrical box cover)
Installation Date
Wiring Type
OWNER'S MANUAL
MODEL GH
F A C T O R Y S E T
C2 Wiring
See page 8 for
other wiring
configurations
NOT FOR RESIDENTIAL USE
41B6
LISTED DOOR OPERATOR

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Summary of Contents for Chamberlain GH

  • Page 1 F A C T O R Y S E T C2 Wiring See page 8 for other wiring configurations OWNER'S MANUAL MODEL GH INDUSTRIAL DUTY DOOR OPERATOR 2 YEAR WARRANTY NOT FOR RESIDENTIAL USE 41B6 Serial # (located on electrical box cover)

  • Page 2: Specifications

    SPECIFICATIONS MOTOR ELECTRICAL TYPE: .........Continuous duty TRANSFORMER:.....24VAC HORSEPOWER:....1/2, 3/4, 1 & 1-1/2 Hp CONTROL STATION: ..NEMA 1 three button station. Single or Three phase OPEN/CLOSE/STOP 2 HP Three phase WIRING TYPE: ....C2 (Standard) SPEED:.......1725 RPM Momentary contact to OPEN/CLOSE/STOP plus wiring for sensing device to reverse and auxiliary devices to VOLTAGE: ......115, 220, 230 Single phase open and close with open override.

  • Page 3: Important Safety Notes

    OPERATOR PREPARATION The GH operator may be mounted on either the right (standard) or left side of door, and in either a vertical (standard) 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;...

  • Page 4: Operator Mounting

    OPERATOR MOUNTING Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The operator may be wall mounted or mounted on a bracket or shelf. If necessary, refer to the operator preparations on page 3. Refer to the illustration and instructions below that suits your application. 1a.

  • Page 5: Emergency Manual Operation

    EMERGENCY MANUAL OPERATION 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. Model GH CAUTION CAUTION These operators are equipped with a manual hoist. An...

  • Page 6: Entrapment Protection Accessories (Optional)

    If your door does not have a bottom sensing edge or safety photo eyes and you wish to add a safety device to WIRING: your application, please contact your local LiftMaster Authorized Dealer. For wiring of your sensing device to the operator, refer to the wiring diagram supplied with your opera- tor.

  • Page 7: Power Wiring Connections

    POWER WIRING CONNECTIONS Remove the cover from the electrical enclosure. Inside this enclosure you will find the wiring diagram(s) for your unit. Refer to the diagram (glued on the inside of the cover) for all connections described below. If this diagram is missing, call the number on the back of this manual. DO NOT INSTALL ANY WIRING OR ATTEMPT TO RUN THIS OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.

  • Page 8: Control Wiring

    CONTROL WIRING DETERMINE WIRING TYPE Refer to the wiring diagram located on the inside cover the electrical box to determine the type of control wiring. SPECIAL CONTROL Standard C2 or B2 Wiring WIRING DIAG Standard operators are shipped from the factory with WIRING DATA jumper set for C2 wiring, which requires constant This Operator has...
  • Page 9 CONTROL WIRING (con’t) Radio Controls WARNING On all models with type B2 control wiring, a terminal bracket marked R1 R2 R3 is located on the outside of the electrical enclosure. All standard radio control DO NOT USE RADIO CONTROLS WITH YOUR receivers (single channel residential type) may be OPERATOR UNLESS YOU HAVE INSTALLED SOME TYPE OF ENTRAPMENT PROTECTION...

  • Page 10: Connect Reversing Edge Device (Optional)

    CONNECT REVERSING EDGE DEVICE (OPTIONAL) The operator has been pre-wired to accept connection of a reversing edge device. Connect the WARNING WARNING normally open contacts to terminals T4 and T8 on the low voltage terminal block. A cut-off switch will de- IF CONTROL STATION CANNOT BE INSTALLED WHERE activate the safety device during the last few inches of DOOR IS VISIBLE, OR IF ANY DEVICE OTHER THAN...

  • Page 11: Maintenance Schedule

    MAINTENANCE SCHEDULE Check at the intervals listed in the following chart. EVERY EVERY EVERY ITEM PROCEDURE 3 MONTHS 6 MONTHS 12 MONTHS Drive Chain Check for excessive slack. Check & adjust as required. Lubricate.* Sprockets Check set screw tightness Fasteners Check &...
  • Page 12 SINGLE PHASE SCHEMATIC DIAGRAM 1742-1 BL/BK BL/BK BL/BK BL/BK 115 VOLT - 1 PHASE 230 VOLT - 1 PHASE MOTOR CONNECTION MOTOR CONNECTION (YE) (BK) OVERLOAD 1 PHASE (BK) (GY) POWER IN TO MOTOR (BK) (PUR) (BK) (SEE NOTE #1) 230V MODELS (BL) 115V MODELS...

  • Page 13: Single Phase Wiring Diagram

    SINGLE PHASE WIRING DIAGRAM 1742-1 TO TERMINAL #2 ORANGE PURPLE PURPLE RADIO YELLOW TIMER RECEIVER PURPLE TO TERMINAL #3 AUX.TERMINAL ( OPTIONAL ) BLOCK FOR RADIO YELLOW GREY PURPLE GREY SAFETY AUX.OPEN ORANGE OPEN CLOSE LIMIT SWITCHES LIMIT SWITCHES CLOSE OPEN ORANGE PURPLE...
  • Page 14 THREE PHASE SCHEMATIC DIAGRAM 1742-3 BL/BK BL/BK BL/BK BL/BK BL/BK BL/BK - SEE NOTE #2 575 VOLT - 3 PHASE 230 VOLT - 3 PHASE 460 VOLT - 3 PHASE MOTOR CONNECTION MOTOR CONNECTION MOTOR CONNECTION OVERLOAD (SEE NOTE #2) (GY) (BK) 3 PHASE...

  • Page 15: Three Phase Wiring Diagram

    THREE PHASE WIRING DIAGRAM 1742-3 TO TERMINAL #2 ORANGE PURPLE RADIO TIMER YELLOW ( OPTIONAL ) RECEIVER PURPLE TO TERMINAL #3 AUX.TERMINAL BLOCK FOR RADIO YELLOW GREY PURPLE GREY SAFETY AUX.OPEN ORANGE OPEN CLOSE LIMIT SWITCHES LIMIT SWITCHES CLOSE OPEN ORANGE PURPLE ORANGE...
  • Page 16 REPAIR PARTS KITS – ELECTRICAL BOX 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 accessories included with your operator may add or remove certain components from these lists.
  • Page 17 ILLUSTRATED PARTS – ELECTRICAL BOX...
  • Page 18 Bevel Gear, 3/4” ID 24 Tooth (3HP) See Page 16 Electrical Box 10-10882 Hand Chain Guide See Page 16 Motor 11-11105 Hand Chain Shaft, GH See Var. Comp. Gear Reducer 12-10029 Bearing, 3/4” I.D. 12-10883 Nyliner Bearing K75-12783 DISCONNECT ASSEMBLY KIT...
  • Page 19 ILLUSTRATED PARTS – MODEL...

  • Page 20: Control Connection Diagram

    CONTROL CONNECTION DIAGRAM IMPORTANT NOTES: ATTENTION ELECTRICIAN: 1) The 3-Button Control Station provided must be connected for operation. USE 16 GAUGE OR HEAVIER WIRE 2) If a STOP button is not used, a jumper must be placed between termianls 3 and 4. FOR ALL CONTROL CIRCUIT WIRING.

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