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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
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GARAGE DOOR OPENER
Model WD822KD 1/2 HP
For Residential Use Only
Owner’s Manual
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Please read this manual and the enclosed safety materials carefully!
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Fasten the manual near the garage door after installation.
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The door WILL NOT CLOSE unless The Protector System is connected and properly aligned.
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Periodic checks of the opener are required to ensure safe operation.
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The model number la
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TABLE OF CONTENTS Introduction 2-7Adjustment 27-29 Safety symbol and signal word review . . . . . . . . . . . . . . . 2 Adjust the travel limits . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3 Adjust the force. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Tools needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Test the safety reversal system. . . . . . . . . . . .
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Preparing your garage door Before you begin: • Disable locks. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if • Remove any ropes connected to garage door. garage door binds, sticks or is out of balance. An • Complete the following test to make sure your garage unbalanced garage door may NOT reverse when door is balanced and is not sticking or binding: required. 1. Lift the door about halfway as shown. Release the • NEVER try to loosen,
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Planning Identify the type and height of your garage door. Survey • Do you have an access door in addition to the garage your garage area to see if any of the conditions below door? If not, Model 7702CB Emergency Key Release is apply to your installation. Additional materials may be required. See Accessories page. required. You may fi nd it helpful to refer back to this page • Look at the garage door where it meets the fl oor. Any and the accompanying illustrations as you proceed with gap
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Planning (Continued) ONE-PIECE DOOR INSTALLATIONS • Generally, a one-piece door does not require Without a properly working safety reversal system, persons (particularly small children) could be reinforcement. If your door is lightweight, refer to the SERIOUSLY INJURED or KILLED by a closing garage information relating to sectional doors in Installation door. Step 11. • The gap between the bottom of the garage door and • Depending on your door’s construction, you may need the fl oor MUS
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Carton Inventory Your garage door opener is packaged in one carton which Parts may be stuck in the foam. Hardware for assembly contains the motor unit and all parts illustrated below. and installation is shown on the next page. Save the carton Accessories will depend on the model purchased. If and packing material until installation and adjustment is anything is missing, carefully check the packing material. complete. Idler Pulley ® SECURITY✚ ® 3-Button Remote Control (2) SECURITY✚ Keyless e
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Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Spring/Trolley Nut (1) Nut Lock Nut Lock Washer 3/8" (1) 1/4"-20 (2) 3/8" (1) Bolt 1/4"-20x1-3/4" (2) Master Link (2) Idler Bolt (1) Trolley Threaded Shaft (1) INSTALLATION HARDWARE Carriage Bolt Wing Nut Ring Nut 1/4"-20x1/2" (2) 1/4"-20 (2) Fastener (3) 5/16"-18 (8) Lag Screw Hex Bolt Insulated Lock Washer 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4) Staples (30) 5/16"
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ASSEMBLY STEP 1 Assemble the Rail & Install the Trolley To prevent INJURY from pinching, keep hands and fi ngers away from the joints while assembling the rail. To avoid installation diffi culties, do not run the garage door opener until instructed to do so. The front rail has a cut out “window” at the door end 3. Place the motor unit on packing material to protect (see illustration). The hole above this window is larger on the cover, and rest the back end of the rail on top. the top of the rai
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ASSEMBLY STEP 2 Fasten the Rail to the Motor Unit To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of • Insert a 1/4"-20x1-3/4" bolt into the cover protection the opener. bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. Do NOT overtighten. • Remove the two bolts from the top of the motor unit. Motor Unit Bolts • Place the “U” bracket, fl at side down, on the motor unit Sprocket and align the bracket
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ASSEMBLY STEP 4 Install the Belt and Attach the Belt Cap To avoid possible SERIOUS INJURY to fi ngers from Retainer moving garage door opener: • ALWAYS keep hand clear of sprocket while operating 1. Pull the belt around the idler pulley and toward the opener. trolley. The ribbed side must contact the pulley. • Securely attach sprocket cover BEFORE operating. 2. Hook the trolley connector into the retaining slot on the trolley as shown. 3. With the trolley against the screwdriver, dispens
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ASSEMBLY STEP 5 Set the Tension • Insert a screwdriver tip into one of the nut ring slots and brace it fi rmly against the trolley. • Place a 7/16" open end wrench on the square end. Nut Ring Slot Rotate the nut about 1/4 turn until the spring releases Square End and snaps the nut ring against the trolley. This sets the spring to optimum belt tension. Trolley You have now fi nished assembling your garage door Square Nut Ring Nut Ring opener. Please read the following warnings before End pr
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INSTALLATION STEP 1 Unfi nished OPTIONAL Ceiling CEILING Determine the Header Bracket Location MOUNT FOR HEADER Header Wall 2x4 BRACKET Vertical Centerline To prevent possible SERIOUS INJURY or DEATH: of Garage Door 2x4 Structural • Header bracket MUST be RIGIDLY fastened to Supports structural support on header wall or ceiling, otherwise garage door might NOT reverse when required. DO NOT install header bracket over drywall. • Concrete anchors MUST be used if mounting header bracket or 2x4
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Wall Mount INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not provided). WALL HEADER BRACKET INSTALLATION Optional • Center the bracket on the vertical centerline with the Mounting Holes bottom edge of the bracket on the
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INSTALLATION STEP 3 Header Wall Header Bracket Attach the Rail to the Header Bracket Idler Pulley Header Bracket NOTE: (Optional) With some existing installations, you may re-use the old header bracket with the two plastic spacers included in the hardware bag. Place the spacers inside the bracket on each side of the rail, as illustrated. Mounting • Position the opener on the garage fl oor below the Hole Existing header bracket. Use packing material as a protective Header base. NOTE: If
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INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling Three representative installations are shown. Yours may garage door opener, fasten it SECURELY to structural supports of the garage. Concrete anchors MUST be be different. Hanging brackets should be angled used if installing ANY brackets into masonry. (Figure 1) to provide rigid support. On fi nished ceilings (Figures 2 and 3), attach a sturdy metal bracket to structural supports before installing the opener
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INSTALLATION STEP 6 Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of door at a minimum height of 5 feet (1.5 m) where small children cannot • Be sure power is NOT connected BEFORE installing reach, and away from moving parts of door and door door control. hardware. The installation surface must be smooth and • Connect ONLY to 24 VOLT low voltage wires. fl at. If installing into drywall (Figure 1), drill 5/32" holes
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INSTALLATION STEP 7 Install the Lights To prevent possible OVERHEATING of the endpanel or light socket: • Press the release tabs on both sides of lens. Gently rotate lens back and downward until the lens hinge is in • DO NOT use short neck or specialty light bulbs. the fully open position. Do not remove the lens. • DO NOT use halogen bulbs. Use ONLY incandescent. • Install a 100 watt maximum light bulb in each socket. To prevent damage to the opener: Light bulb size should be A19, standa
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INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from To avoid installation diffi culties, do not run the opener electrocution or fi re: at this time. • Be sure power is NOT connected to the opener, and disconnect power to circuit BEFORE removing cover To reduce the risk of electric shock, your garage door to establish permanent wiring connection. opener has a grounding type plug with a third grounding • Garage door installation and wiring MUST be in
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INSTALLATION STEP 10 ® Install The Protector System Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected and To prevent SERIOUS INJURY or DEATH from a closing aligned correctly before the garage door opener will garage door: move in the down direction. • Correctly connect and align the safety reversing IMPORTANT INFORMATION ABOUT THE SAFETY sensor. This required safety device MUST NOT be REV
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DOOR TRACK MOUNT (RIGHT SIDE) INSTALLING THE BRACKETS Figure 1 Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other across the garage door, with the beam no higher than Door Track 6" (15 cm) above the fl oor. They may be installed in one of three ways, as follows. Lip Indicator Garage door track installation (preferred): Light • Slip the curved arms over the rounded edge of each door track, with the curved arms facing the door. Snap
