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GARAGE DOOR OPENER
Model PD300DM • 1/2 HP
For Residential Use Only
Owner's Manual
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
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properly aligned.
Periodic checks of the opener are required to ensure safe operation.
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The model number label is located on the front panel of your opener.
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®
®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
is connected and
®
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Summary of Contents for Chamberlain PD300DM 1/2 HP
- Page 1 The Chamberlain Group, Inc. 845 Larch Avenue ® Elmhurst, Illinois 60126-1196 www.chamberlain.com ® GARAGE DOOR OPENER Model PD300DM • 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS Introduction Adjustment 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 ........ 29 Planning .............. -
Page 3: Preparing Your Garage Door
Preparing your garage door Before you begin: To prevent possible SERIOUS INJURY or DEATH: • Disable locks. • 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 unbalanced garage door may not reverse when •... -
Page 4: Planning
Planning • Do you have an access door in addition to the Identify the type and height of your garage door. garage door? If not, Model 7702CB Emergency Survey your garage area to see if any of the Key Release is required. See Accessories page. conditions below apply to your installation. - Page 5 Planning (Continued) 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 SERIOUSLY INJURED or KILLED by a closing garage reinforcement. If your door is lightweight, refer to door.
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Page 6: Carton Inventory
Carton Inventory Your garage door opener is packaged in one carton packing material. PARTS MAY BE STUCK IN THE which contains the motor unit and all parts illustrated FOAM. Hardware for assembly and installation is below. Accessories will depend on the model shown on the next page. -
Page 7: Hardware Inventory
Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE 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... -
Page 8: Assemble The Rail And Install The Trolley
ASSEMBLY STEP 1 Assemble the Rail & Install the To prevent INJURY from pinching, keep hands and Trolley fingers away from the joints while assembling the rail. To avoid installation difficulties, do not run the garage door opener until instructed to do so. The front rail has a cut out “window”... -
Page 9: Fasten The Rail To The Motor Unit And Install The Idler Pulley
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. -
Page 10: Install The Chain/Cable
ASSEMBLY STEP 4 Install the Chain/Cable To avoid possible SERIOUS INJURY to fingers from moving garage door opener: 1. Pull the cable around the idler pulley and toward the trolley. • ALWAYS keep hand clear of sprocket while operating opener. 2. -
Page 11: Tighten The Chain
ASSEMBLY STEP 5 Tighten the Chain Figure 1 Trolley • Spin the inner nut and lock washer down the Outer Lock Threaded Washer Shaft trolley threaded shaft, away from the trolley. To Tighten Outer Nut • To tighten the chain, turn outer nut in the direction shown (Figure 1). -
Page 12: Determine The Header Bracket Location
INSTALLATION STEP 1 Unfinished Determine the Header Bracket Ceiling OPTIONAL Location CEILING MOUNT HEADER BRACKET Header Wall To prevent possible SERIOUS INJURY or DEATH: Vertical Centerline of Garage Door • Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise Structural Supports garage door might not reverse when required. -
Page 13: Install The Header Bracket
INSTALLATION STEP 2 Wall Mount 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. -
Page 14: Attach The Rail To The Header Bracket
INSTALLATION STEP 3 Attach the Rail to the 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. -
Page 15: Position The Opener
INSTALLATION STEP 4 Position the Opener To prevent damage to garage door, rest garage door Follow instructions which apply to your door type as opener rail on 2x4 placed on top section of door. illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to-rail distance. -
Page 16: Hang The Opener
INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Three representative installations are shown. Yours supports of the garage. Concrete anchors MUST be used may be different. Hanging brackets should be angled if installing any brackets into masonry. -
Page 17: Install The Door Control
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 door reach, and away from moving parts of door and door control. -
Page 18: Install The Light
INSTALLATION STEP 7 Install the Light To prevent possible OVERHEATING of the endpanel or light socket: • Press the release tabs on both sides of lens. • DO NOT use short neck or specialty light bulbs. Gently rotate lens back and downward until the lens hinge is in the fully open position. -
Page 19: Electrical Requirements
INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: To avoid installation difficulties, do not run the opener at this time. • Be sure power is not connected to the opener, and disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection. -
Page 20: Install The Protector System
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 aligned correctly before the garage door To prevent SERIOUS INJURY or DEATH from a closing opener will move in the down direction. - Page 21 INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Figure 1 DOOR TRACK MOUNT (RIGHT SIDE) Install and align the brackets so the sensors will face each other across the garage door, with the beam no Door higher than 6" (15 cm) above the floor. They may be Track installed in one of three ways, as follows.
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Page 22: Mounting And Wiring
MOUNTING AND WIRING THE SAFETY Figure 5 REVERSING SENSORS Wing Nut 1/4"-20 • 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 obstructed Carriage Bolt by a bracket extension (Figure 5). -
Page 23: Fasten The Door Bracket
INSTALLATION STEP 11 Fasten the Door Bracket Fiberglass, aluminum or lightweight steel garage doors Follow instructions which apply to your door type WILL REQUIRE reinforcement BEFORE installation of door bracket. Contact your door manufacturer for as illustrated below or on the following page. reinforcement kit. - Page 24 ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.
- Page 25 INSTALLATION STEP 12 Connect Door Arm to Trolley Pulley Follow instructions which apply to your door type as illustrated below and on the following page. Trolley SECTIONAL DOORS ONLY Outer Stop Bolt Inner Trolley Trolley • Make sure garage door is fully closed. Pull the Ring Clevis Pin emergency release handle to disconnect the outer...
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Page 26: Connect The Door Arm To The Trolley
ALL ONE-PIECE DOORS Door Bracket Ring 1. Assemble the door arm, Figure 4: Fastener Nuts Lock • Fasten the straight and curved door arm sections 5/16"-18 Washers together to the longest possible length (with a 2 5/16" Clevis Pin or 3 hole overlap). Straight 5/16"x1-1/4"... -
Page 27: Adjust The Travel Limits
ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Without a properly installed safety reversal system, Limits persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage Limit adjustment settings regulate the points at which door. the door will stop when moving up or down. -
Page 28: Adjustment
ADJUSTMENT STEP 2 Adjust the Force Without a properly installed safety reversal system, Force adjustment controls are located on the back persons (particularly small children) could be panel of the motor unit. Force adjustment settings SERIOUSLY INJURED or KILLED by a closing garage regulate the amount of power required to open and door. -
Page 29: Test The Safety Reversal System
ADJUSTMENT STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be TEST SERIOUSLY INJURED or KILLED by a closing garage • With the door fully open, place a 1-1/2" (3.8 cm) door. -
Page 30: Operation
WARNING OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND 9. If one control (force or travel limits) is adjusted, the INSTRUCTIONS. other control may also need adjustment. 2. -
Page 31: Using The Wall-Mounted Door Control
Using the Wall-Mounted To Open the Door Manually Door Control Press the lighted push button to open or close the door. Press again to To prevent possible SERIOUS INJURY or DEATH from a reverse the door during the closing falling garage door: cycle or to stop the door while it's •... -
Page 32: Care Of Your Garage Door Opener
CARE OF YOUR OPENER THE REMOTE CONTROL BATTERY LIMIT AND FORCE ADJUSTMENTS: Weather conditions may FORCE CONTROLS cause some minor changes To prevent possible SERIOUS INJURY or DEATH: in door operation requiring • NEVER allow small children near batteries. some re-adjustments, •... -
Page 33: Having A Problem
HAVING A PROBLEM? (TROUBLESHOOTING) 1. My door will not close and the light bulbs blink Bell Wire on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. •... -
Page 34: Diagnostic Chart
Bell Wire Diagnostics Installed Located On Safety Reversing Sensor Motor Unit LED or Your garage door opener is programmed with Diagnostic self-diagnostic capabilities. The “Learn” button/diagnostic "Learn" LED will flash a number of times then pause signifying it Button Safety Reversing Sensor has found a potential issue. -
Page 35: Programming
PROGRAMMING NOTICE: If this Security✚ garage door opener is operated with a non-rolling code transmitter, the technical ® measure in the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented. The owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code transmitter to circumvent that technical measure. -
Page 36: To Add, Reprogram Or Change A Keyless Entry Pin
To Add, Reprogram or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be programmed to operate your garage door opener. USING THE “LEARN” BUTTON To change an existing, known PIN If the existing PIN is known, it may be changed by one person without using a ladder. -
Page 37: Repair Parts
REPAIR PARTS Rail Assembly Parts PART DESCRIPTION 4A1008 Master link kit 41C5141-1 Complete trolley assembly 41A5665-2 Complete rail 144C56 Idler pulley 41A5807 Chain and cable 12D598-1 “U” bracket NOT SHOWN 183A163 Wear pads Installation Parts KEY PART DESCRIPTION 41A4166 Lighted door control button 950D Single-Button remote control 10A20... -
Page 38: Motor Unit Assembly Parts
Motor Unit Assembly Parts (Down) LIMIT SWITCH Brown Contact ASSEMBLY Wire Grey Wire Drive Gear Center Limit (Up) Yellow Contact Contact Wire PART PART DESCRIPTION DESCRIPTION 41A5615 Chain Spreader 41A5525-5 Cover 41C4220A Gear and sprocket assembly. 41A2818 Limit switch drive & retainer Complete with: Spring washer, 41D3452 Limit switch assembly... -
Page 39: Accessories
Monitors the status of your garage Enables homeowner to turn on a door from inside your home. lamp, television or other appliance from their car with their garage door opener remote or from anywhere in their home with an additional Chamberlain Security✚ remote. ®... -
Page 40: Repair Parts And Service
SIX-YEAR MOTOR LIMITED WARRANTY The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase [and that the motor is free from defect in materials and/or workmanship for a period of six years from the date of purchase].