Chamberlain LGJ Owner's Manual
Chamberlain LGJ Owner's Manual

Chamberlain LGJ Owner's Manual

Industrial duty door operator

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OWNER'S MANUAL
MODELS:
LGJ & MGJ
INDUSTRIAL DUTY DOOR OPERATOR
NOT FOR RESIDENTIAL USE
2 YEAR WARRANTY
41B6
Serial #
(located on electrical box cover)
Installation Date
Wiring Type
LISTED DOOR OPERATOR

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Summary of Contents for Chamberlain LGJ

  • Page 1 OWNER'S MANUAL MODELS: LGJ & MGJ INDUSTRIAL DUTY DOOR OPERATOR NOT FOR RESIDENTIAL USE 2 YEAR WARRANTY 41B6 Serial # (located on electrical box cover) Installation Date Wiring Type LISTED DOOR OPERATOR...
  • Page 2: Specifications

    SPECIFICATIONS MOTOR ELECTRICAL TYPE: .........Intermittent Duty RANSFORMER:.....24VAC HORSEPOWER: ....MGJ: 1/2Hp 1 or 3 Phase CONTROL STATION: ..NEMA 1 three button station. LGJ: 1/4 Hp 1 Phase OPEN/CLOSE/STOP SPEED:.......MGJ: 1050 RPM WIRING TYPE: MGJ: B2-C2 (Factory Shipped) LGJ: 1725 RPM LGJ: G2 (Factory Shipped) VOLTAGE: ......MGJ: 115, 60HZ, 1Ph...
  • Page 3: Important Safety Notes

    The safety and wear of the operator will be adversely affected if any of the above requirements are not met. 2.75 for MGJ, butt together for LGJ 2-1/4" For metal buildings, fasten 2” x 2” x 3/16” (or larger) angle FIGURE 1 iron frames to the building purlins.
  • Page 4 LGJ LEFT HAND MOUNTING PREPARATIONS LGJ Operators are assembled at the factory to be installed in a right hand (motor side up) configuration. To install an LGJ Operator on the left hand side of your door (motor side down), complete the three steps described below.
  • Page 5 SUPPORT BRACKET RELEASE CABLE SLOT HOUR GLASS CABLE SLEEVE KEY RING FIGURE 2 SASH CHAIN Disconnect Cable Re-routed for Left Hand Mounting LABEL SILK SCREEN FIGURE 3...
  • Page 6: Operator Mounting

    12” - 15”. between 12” - 15”. Refer to Figure 4. Refer to Figure 3. OPTIONAL (LGJ) Mounting Bracket OPTIONAL (MGJ) Mounting Bracket P/N 10-9098...
  • Page 7: Emergency Manual Operation

    Keyhole Bracket 6. Mount Chain Keeper / Keyhole Bracket Using suitable hardware mount the chain keeper approximately 4 feet above the floor, near the free hanging chain. Remove disconnect sash chain from bag and place the end through the keyhole in the the chain keeper.
  • Page 8 ENTRAPMENT PROTECTION ACCESSORIES (OPTIONAL) SENSING EDGES IT IS STRONGLY RECOMMENDED THAT A All types of sensing edges with an isolated normally SENSING EDGE OR OTHER ENTRAPMENT open (N.O.) output are compatible with your operator. PROTECTION DEVICE USED This includes pneumatic and electric edges. If your CONJUNCTION WITH THIS OPERATOR.
  • Page 9 LGJ LIMIT SWITCH ADJUSTMENT IMPORTANT NOTE: To avoid danger of possible damage to the door and operator, limit switches must be adjusted to their approximate positions before applying power to the operator. Auxiliary limit switches to control other functions are...
  • Page 10: 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 11: Control Wiring

    Standard C2 or B2 Wiring Standard G2 Wiring Model MGJ operators are shipped from the factory Model LGJ operators are supplied with type G2 control with jumper set for C2 wiring, which requires constant wiring. Study the control features list below to pressure on button to close the door.
  • Page 12 SINGLE PHASE SCHEMATIC DIAGRAM for MGJ 1754 (OPTIONAL) (OPTIONAL) BIMETAL LIGHT RELAY MAX. 100W WIRE NUT CLOSE-B N.O. RES. MOTOR * L1 (N) (HOT) L2 OPEN-A CAPACITOR WIRE NUT PR1. STOP 10VA. Y/BK 24VAC. SEC. MOVE JUMPER WIRE TO TERMINAL #2 FOR MOMENTARY CONTACT ON CLOSE CLOSE-A N.O.
  • Page 13 THREE PHASE SCHEMATIC DIAGRAM for MGJ 1819 BL/BK BL/BK BL/BK BL/BK 230 VOLT - 3 PHASE 460 VOLT - 3 PHASE MOTOR CONNECTION MOTOR CONNECTION (GY) (BK) 3 PHASE (BK) POWER IN TO MOTOR (BK) (PUR) (YEL) (BK) (BK) (BR) PRI.
  • Page 14 SINGLE PHASE SCHEMATIC DIAGRAM for LGJ 1666...
  • Page 15 LGJ CONTROL CONNECTION DIAGRAM 41B6 LISTED DOOR OPERATOR NUMBERED BOXES CORRESPOND WITH TERMINALS ON J1 CONNECTOR STRIP If Neccessary, Remove The Connector Block From The Board To Secure Each Wire Connection Connect field wires to any terminal number shown in the respective column. See control options below for explanation of how field control will function for each terminal number.
  • Page 16 REPLACEMENT PART KITS LGJ Below are replacement kits available for your operator. Optional modifications and/or accessories included with your operator may add or remove certain components from these lists. Please consult a parts and service representative regarding availability of individual components of kits specified below. Refer to page 10 for all repair part ordering information.
  • Page 17 LGJ ELECTRICAL BOX - ILLUSTRATED PARTS WARNING WARNING...
  • Page 18 REPLACEMENT PART LISTS – MODEL Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or accessories are included with your operator, certain components may be added or removed from these lists. Individual components of each kit may not be available. Please consult a parts and service representative regarding availability of individual components.
  • Page 19 LGJ ILLUSTRATED PARTS...
  • Page 20: Replacement Part Kits Mgj

    REPLACEMENT PART KITS MGJ 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 21 MGJ ELECTRICAL BOX - ILLUSTRATED PARTS...
  • Page 22 REPLACEMENT PART LISTS – MODEL Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or accessories are included with your operator, certain components may be added or removed from these lists. Individual components of each kit may not be available. Please consult a parts and service representative regarding availability of individual components.
  • Page 23 ILLUSTRATED PARTS – MODEL...
  • Page 24 MGJ CONTROL CONNECTION DIAGRAM (Refer to page 15 for model LGJ control connections) 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.

This manual is also suitable for:

Mgj

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