Chamberlain Security+ 1245GMR-1/3HP Owner'S Manual Download Page 1

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GARAGE DOOR OPENER

Model 1255GMR – 1/2HP
Model 1245GMR – 1/3HP

For Residential Use Only

Complies with UL 325
regulations effective
January 1, 1993

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 label is located on the front panel of your opener.

The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126

Summary of Contents for Security+ 1245GMR-1/3HP

Page 1: ... 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 label is located on the front panel of your opener The Chamberlain Group Inc A DUCHOSSOIS ENTERPRISE 845 Larch Avenue Elmhurst Illinois 60126 ...

Page 2: ... Care of your garage door opener 29 Having a problem 29 30 Programming Pages 31 32 To add a hand held remote control 31 To erase all codes 31 3 channel remotes 31 To add or change a Keyless Entry PIN 32 Repair Parts Pages 33 34 Rail assembly parts 33 Installation parts 33 Motor unit assembly parts 34 Accessories 35 Repair Parts and Service 36 Warranty 36 TABLE OF CONTENTS When you see these Safety...

Page 3: ...ckets or their hardware all of which are under EXTREME tension Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement Preparing your garage door Before you begin Disable locks Remove any ropes connected to garage door Complete the following test to make sure your garage door is balanced and is not sticking or binding...

Page 4: ...rvey your garage area to see if any of the conditions below apply to your installation Additional materials may be required You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener FINISHED CEILING Support bracket fastening hardware is required See page 13 Slack in chain tension is normal when garage door is closed Sa...

Page 5: ... Cable Pulley Bracket Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below Accessories will depend on the model purchased If anything is missing carefully check the packing material Parts may be stuck in the foam Hardware for installation is also listed below Carton Inventory INSTALLATION HARDWARE Hex Screw 5 16 18x7 8 4 Lag Screw 5 16 9x1...

Page 6: ...p of motor unit CAUTION ASSEMBLY STEP 2 Attach the Chain to the Sprocket and Install the Sprocket Cover Position chain over the sprocket If necessary loosen the outer nut on the trolley to obtain more chain slack Insert the second washered screw CAUTION Use only the screw previously removed from motor unit Tighten both screws securely through the T rail into the motor unit as shown Install the spr...

Page 7: ...nstall garage door opener only on properly balanced and lubricated garage door An improperly balanced door may not reverse when required and could result in severe injury or death 3 All repairs to cables spring assemblies and other hardware MUST be made by a trained door systems technician before installing opener 4 Disable all locks and remove all ropes connected to garage door before installing ...

Page 8: ...of travel as shown Draw an intersecting horizontal line on the header wall 2 above the high point This height will provide travel clearance for the top edge of the door Proceed to Step 2 page 10 One piece door with horizontal track To prevent possible SERIOUS INJURY or DEATH Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling otherwise garage door might not reve...

Page 9: ...shown Measure the distance from the top of the door to the floor Subtract the actual height of the door Add 8 to the remainder See Example 3 Close the door and draw an intersecting horizontal line on the header wall at the determined height NOTE If the total number of inches exceeds the height available in your garage use the maximum height possible or refer to page 10 for ceiling installation Doo...

Page 10: ...Garage Door Travel Vertical Center Line Header Wall Garage Door UP CEILING MOUNT ONLY Wall Mounting Holes Optional Wall Mounting Holes The nail hole is for positioning only You must use lag screws to mount the header bracket UP CEILING MOUNT ONLY Door Spring Header Bracket 2x4 Structural Support Vertical Center Line UP CEILING MOUNT ONLY Ceiling Mounting Holes The nail hole is for positioning only...

Page 11: ...e hold the opener securely on a temporary support to allow the rail to clear the spring Position the rail bracket against the header bracket Align the bracket holes and join with a clevis pin as shown Insert a ring fastener to secure IN C R E A S E T R A V E L D O W N U P Header Bracket Temporary Support Header Wall Garage Door T rail Cable Pulley Bracket Clevis Pin 5 16 x2 3 4 Ring Fastener Heade...

Page 12: ...for setting an ideal door to rail distance Raise the opener onto a stepladder You will need help at this point if the ladder is not tall enough Open the door all the way and place a 2x4 laid flat on the top section beneath the rail If the top section or panel hits the trolley when you raise the door pull down on the trolley release arm to disconnect inner and outer sections Slide the outer trolley...

Page 13: ... sure the rail is centered over the door or in line with the header bracket if the bracket is not centered above the door 7 Remove the 2x4 Operate the door manually If the door hits the rail raise the header bracket 8 Grease the top and underside of the rail surface where the trolley slides with rail grease To avoid possible SERIOUS INJURY from a falling garage door opener fasten it SECURELY to st...

Page 14: ... to the full open position but will not return to the close position until the sensor beam is connected and properly aligned See Safety Reversing Sensor Instructions beginning on page 17 Dry Wall Anchors Insulated Staples 6ABx1 1 2 Screw Lighted Door Control Button HARDWARE SHOWN ACTUAL SIZE To prevent possible serious injury or death from electrocution Be sure power is not connected before instal...

Page 15: ... up as shown Secure with an overhand knot at least 1 from the end of the rope to prevent slipping Thread the other end of the rope through the hole in the release arm of the outer trolley Adjust rope length so the handle is 6 feet above the floor Secure with an overhand knot NOTE If it is necessary to cut the rope heat seal the cut end with a match or lighter to prevent unraveling To prevent possi...

Page 16: ...ord Connect the black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded Reinstall the cover To avoid installation difficulties do not run the opener at this time RIGHT WRONG To prevent possible SERIOUS INJURY or DEATH from electrocution or fire Be sure power is not connec...

Page 17: ...r Either can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens The mounting brackets are designed to clip onto the track of sectional garage doors without additional hardware If it is necessary to mount the units on the wall the brackets must be securely fastened to a solid surface such as the wall framing Extension brackets see acce...

Page 18: ...edge of the track as shown in Figure 1 If your door track will not support the bracket securely wall installation is recommended Wall installation Place the bracket against the wall with curved arms facing the door Be sure there is enough clearance for the sensor beam to be unobstructed If additional depth is needed an extension bracket see Accessories or wood blocks can be used Use bracket mounti...

Page 19: ... the sending eye wing nut and readjust aiming directly at the receiving eye Lock in place Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam When the green indicator light glows steadily tighten the wing nut TROUBLESHOOTING THE SAFETY SENSORS 1 If the sending eye indicator light does not glow steadily after installation check for Electric power to the opener A ...

Page 20: ...ace between the door panel support and the door bracket Drill 3 16 fastening holes Secure the door bracket using the two 1 4 14x5 8 self threading screws Figure 2A Alternately use two 5 16 bolts lock washers and nuts not provided Figure 2B Metal insulated or light weight factory reinforced doors Drill 3 16 fastening holes Secure the door bracket using the self threading screws Figure 3 Wood Doors ...

Page 21: ...MINUM STEEL DOORS WITH GLASS PANEL ETC NOT PROVIDED 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 Metal Doors Drill 3 16 pilot holes and fasten the bracket...

Page 22: ...ar apart as possible to increase door arm rigidity Figure 3 Hole alignment alternative If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Reconnect to trolley with cut end down as shown Bring arm sections together Find two pairs of holes that line up and join with screws lock washers and nuts Proceed to Adjustment Step 1 page 24 Trolley wi...

Page 23: ...uals 2 of trolley travel Closed door adjustment decrease DOWN travel limit Turn the DOWN limit adjustment screw clockwise 5 complete turns 23 Nuts 5 16 18 Lock Washers 5 16 Ring Fastener Straight Arm Screws 5 16 18x7 8 Door Bracket Clevis Pin 5 16 x1 1 4 Curved Door Arm Door Arm Fully Open Trolley Door Arm Connector Hole Closed Door Open Door Door with Backward Slant Door Arm Connector Hole Fully ...

Page 24: ... 2 If the door does not close completely Increase down travel Turn the down limit adjustment screw counterclockwise One turn equals 2 of travel If door still won t close completely and the trolley bumps into the pulley bracket see page 4 or 5 try lengthening the door arm page 22 and decreasing the down limit If the opener reverses in fully closed position Decrease down travel Turn the down limit a...

Page 25: ...ntrol clockwise Make small adjustments until the door completes a close cycle After each adjustment run the opener through a complete travel cycle Do not increase the force beyond the minimum amount required to close the door 2 Test the UP open force Grasp the door bottom when the door is about halfway through UP open travel The door should stop If the door is hard to hold or doesn t stop DECREASE...

Page 26: ...reverses on the one inch board remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment IMPORTANT SAFETY CHECK Repeat Adjustment Steps 1 2 and 3 after Each adjustment of door arm length limits or force controls Any repair to or adjustment of the garage door including springs and hardware Any repair to or buckling of the garage floor Any repair to or adjust...

Page 27: ... controls and one Keyless Entry System If you purchase a new remote or if you wish to deactivate any remote follow the instructions in the Programming section Activate your opener with any of the following The hand held Remote Control Hold the large push button down until the door starts to move The wall mounted Door Control Hold the push button or bar down until the door starts to move The Keyles...

Page 28: ...IOUS INJURY or DEATH from a falling garage door If possible use emergency release handle to disengage trolley ONLY when garage door is CLOSED Weak or broken springs or unbalanced door could result in an open door falling rapidly and or unexpectedly NEVER use emergency release handle unless garage doorway is clear of persons and obstructions NEVER use handle to pull door open or closed If rope knot...

Page 29: ...doesn t operate from either the Door Control or the remote control Does the opener have electric power Plug a lamp into the outlet If it doesn t light check the fuse box or the circuit breaker Some outlets are controlled by a wall switch Have you disabled all door locks Review installation instruction warnings on page 7 Is there a build up of ice or snow under the door The door may be frozen to th...

Page 30: ...djustments to force or travel limits The need for occasional adjustment of the force and limit settings is normal Weather conditions in particular can affect door travel 11 The door reverses for no apparent reason and opener lights blink for 5 seconds after reversing Check the safety reversing sensor Remove any obstruction or align the receiving eye See Installation Step 10 12 The opener lights do...

Page 31: ...Door Control all three buttons are held 4 Release buttons when the motor unit lights blink It has learned the code If light bulbs are not installed two clicks will be heard KG KG 1 3 9 7 5 1 3 9 7 5 1 2 3 1 2 1 Press and release the learn button on the motor unit The learn indicator light will glow steadily for 30 seconds 2 Within 30 seconds press and hold the button on the hand held remote that y...

Page 32: ...r the present PIN then press and hold the button The opener light will blink twice Release the button 2 Press the new 4 digit PIN you have chosen then press Enter The motor unit lights will blink once when the PIN has been learned Test by pressing the new PIN then press Enter The door should move To set a temporary PIN You may authorize access by visitors or service people with a temporary 4 digit...

Page 33: ...056 1GM Single function remote control case no circuit board 3 10A20 3V2032 Lithium battery 4 29B137 Remote control visor clip 5 41A2828 Manual rope handle assy 6 217A238 2 Conductor bell wire white white red 7 41A4353 Header bracket w clevis pin fastener 8 41A5047 Door bracket w clevis pin fastener 9 41A5034 Safety sensor kit receiving and sending eyes with 3 2 connector bell wire attached 10 178...

Page 34: ...36 Lens 8 30B363 Capacitor 1 2HP 30B387 Capacitor 1 3HP 9 12A373 Capacitor bracket 10 41A3150 Terminal block w screws 11 41D3058 Universal replacement motor bracket assembly Complete with Motor worm bracket bearing assembly RPM sensor KEY PART NO NO DESCRIPTION 12 41A3666 8 Cover Model 1255 41A3666 9 Cover Model 1245 13 41A2818 Limit switch drive retainer 14 41D3452 Limit switch assembly 15 41C439...

Page 35: ... turns opener lights on for 5 minutes when it detects a person entering the garage Sensor can be easily deactivated when desired Model 976LG SECURITY 2 Channel Remote Control Includes visor clip Outside Keylock Opens the garage door automatically from outside when remote control is not handy Outside Quick Release Required for a garage with NO access door 10 foot Complete Rail To allow a 10 foot do...

Page 36: ...a brief description of the problem and a dated proof of purchase receipt with any product that is returned for warranty repair Products returned to Seller for warranty repair which upon receipt by Seller are confirmed to be defective and covered by this limited warranty will be repaired or replaced at Seller s sole option at no cost to you and returned pre paid Defective parts will be repaired or ...

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