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®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
®
GARAGE DOOR OPENER
Models 7902 • 7902K 1/2 HP
For Residential Use Only
Owner’s Manual
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
®
■ The door WILL NOT CLOSE unless the Protector System is connected and
properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number l
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TABLE OF CONTENTS Introduction 2-5 Adjustment 28-30 Safety symbol and signal word review........................2 Adjust the up and down travel limits .........................28 Preparing your garage door ........................................3 Adjust the force .........................................................29 Tools needed...............................................................3 Test the safety reversal system.................................30 ® Planning ....................
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1 Preparing your garage door WARNING WARNING Before you begin: To prevent possible SERIOUS INJURY OR DEATH: • Disable locks. • ALWAYS call a trained door systems technician if CAUTION WARNING • Remove any ropes connected to garage door. garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when • Complete the following test to make sure your required. garage door is balanced and is not sticking or binding: • NEVER try to loosen, move or adjust garage door, d
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— — — — — — — — • Do you have an access door in addition to the Planning garage door? If not, Model 7702CB Outside Quick Identify the type and height of your garage door. Release is required. See Accessories page. Survey your garage area to see if any of the • Look at the garage door where it meets the floor. conditions below apply to your installation. Additional Any gap between the floor and the bottom of the materials may be required. You may find it helpful to door must not ex
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Planning (Continued) WARNING WARNING ONE-PIECE DOOR INSTALLATIONS Without a properly working safety reversal system, persons (particularly small children) could be • Generally, a one-piece door does not require CAUTION SERIOUSLY INJURED or KILLED by a closing garage WARNING reinforcement. If your door is lightweight, refer to door. the information relating to sectional doors in • The gap between the bottom of the garage door and Installation Step 12. the floor MUST NOT exceed 1/4". Otherwise, th
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Carton Inventory Your garage door opener is packaged in one carton purchased. If anything is missing, carefully check the which contains the motor unit and all parts illustrated packing material. Parts may be stuck in the foam. below. Accessories will depend on the model Hardware for installation is also listed below. Model 7902K only Sprocket 3-Button SECURITY✚ Coupling Remote Control (2) SECURITY✚ Multi-Function Keyless Entry Remote Control Door Control Panel Transmitter Visor Clip Rail Suppo
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NOTICE Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Bolt Lock Nut Hex Bolt 1/4"-20x1-3/4" (8) 1/4"-20 (12) Sprocket Coupling Sleeve 1/4" -20x5/8" (4) INSTALLATION HARDWARE Ring Handle Carriage Bolt Wing Nut Nut 5/16"-18 (4) 1/4"-20x1/2" (2) 1/4"-20 (2) Fastener (3) Lag Screw Hex Bolt Insulated 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4) Staples (30) Lock Washer 5/16" (4) Lag Screw Screw Screw 6-32x1" (2) 5/16"-18x1
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ASSEMBLY STEP 1 Assemble the Rail To avoid installation difficulties, do not run the garage door opener until instructed to do so. 1. Turn the opened rail carton upside down and empty its contents onto a level work surface. 2. Unfold the rails, taking care to avoid kinking the screw rod joint. 3. Rotate the rail sections so that the flat side is down and the screw side is up for all three lengths. Keep it clean and free of debris while you are working. Straight Door Arm Remove Extend Cardboard
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Assemble the Rail (Continued) 4. Beginning with the sprocket end, straighten the two rail sections so that the screw rod is in a straight line at the joint. (Avoid handling the joint, which may have sharp edges.) 5. Carefully slide the pins at the top edge of the rail into the openings on the adjacent rail. It is essential that the rail assembly be on a level surface to achieve proper alignment and to avoid damage to the pins. 6. Insert two 1/4"-20x1-3/4" bolts through the center holes of a bra
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ASSEMBLY STEP 2 HARDWARE SHOWN ACTUAL SIZE Fasten the Rail to the Motor Unit Hex Bolt Lock Nut 1/4" - 20 and Install the Trolley 1/4" - 20 x 5/8" To aid in assembly and installation, replace the foam packing around the motor unit. Remove it after Installation Step 5. •Working on a level surface, align the rail assembly with the motor unit, as shown. • Slip the coupling over the rail sprocket. • Slide the rail through the motor unit bracket until the coupling fits securely over the motor unit spr
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ASSEMBLY STEP 3 Lock Nuts Attach the Rail Brackets 1/4"-20 Rail Brackets • Align rail brackets to end of rail assembly, as shown. • Insert two 1/4"-20 x 5/8" hex bolts and lock nuts. Tighten securely with a 7/16" socket. Hex Bolts Rail You have now finished assembling your garage 1/4"-20x5/8 door opener. Please read the following warnings before proceeding to the installation section. HARDWARE SHOWN ACTUAL SIZE Hex Bolt Lock Nut 1/4" - 20 1/4" - 20 x 5/8" INSTALLATION IMPORTANT INSTALLATION IN
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INSTALLATION STEP 1 Finished Determine the Header Bracket Vertical Ceiling Centerline Location Header Structural 2x4 Wall Supports WARNING WARNING To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to CAUTION WARNING 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 Vertical bracket or 2x4 into masonry. Centerline •
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ONE-PIECE DOOR WITHOUT TRACK Unfinished Ceiling 1. Close the door and mark the inside vertical centerline of your garage door. Extend the line Structural onto the header wall above door, as shown. Supports Header Wall Vertical If headroom clearance is minimal, you can install Centerline 2x4 the header bracket on the ceiling. See page 14. 2x4 If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) OPTIONAL to securely fasten the 2x4 to structural sup
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INSTALLATION STEP 2 Install the Header Bracket Wall Mounting Holes You can attach the header bracket either to the wall CEILING MOUNT ONLY above the garage door, or to the ceiling. Follow the The nail hole is for positioning only. instructions which will work best for your particular You must use lag screws UP requirements. Do not install the header bracket to mount the header bracket. over drywall. If installing into masonry, use concrete anchors (not provided). Optional WALL HEADER BRACKET
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INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. • Position the rail bracket against the header bracket. Header Wall • Align the bracket holes and join with a clevis pin as shown. Header Bracket • Insert a ring fastener to
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INSTALLATION STEP 4 WARNING WARNING ® 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 CAUTION WARNING • To prevent SERIOUS INJURY or DEATH from a closing and aligned correctly before the garage door garage door: opener will move in the down direction. – Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be IMPORTANT INFOR
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INSTALLING THE BRACKETS Figure 1 Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face DOOR TRACK MOUNT (RIGHT SIDE) each other across the garage door, with the beam no higher than 6" above the floor. They may be installed Door in one of three ways, as follows: Track Garage door track installation (preferred): Lip Indicator • Slip the curved arms over the rounded edge of light each door track, with the curved arms facing the door. Snap into place a
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MOUNTING AND WIRING THE SAFETY Figure 4 SENSORS Wing nut • Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not Carriage bolt obstructed by a bracket extension (Figure 4). 1/4"-20x1/2" Lens • Finger tighten the wing nuts. Recommended Wire Routing HARDWARE SHOWN ACTUAL SIZE 1. Using insulated staples, run the wires from both sensors to the rail at the doo
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WARNING WARNING INSTALLATION STEP 5 CAUTION WARNING Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to-rail distance. 2x4 • Raise the opener onto a stepladder. You will need Header laid flat Bracket help at this point if the ladder is not tall enough. • Open
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INSTALLATION STEP 6 WARNING WARNING Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Two representative installations are shown. Yours CAUTION supports of the garage. Concrete anchors MUST be used WARNING may be different. Hanging brackets should be angled if installing any brackets into masonry. (Figure 1) to provide rigid support. On finished ceilings (Figure 2), attach a sturdy metal bracket to structural supports before inst
