The Chamberlain Group, Inc. 845 Larch Avenue
Elmhurst, Illinois 60126-1196 www.liftmaster.com
®
®
GARAGE DOOR OPENER
Model Series 1200
For Residential Use Only
Model 1256R - 1/2HP |
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Model 1255R - 1/2HP |
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Model 1246R - 1/3HP |
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Model 1245R - 1/3HP |
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Model 1240R - 1/4HP
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 SystemÆ 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.
TABLE OF CONTENTS |
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Introduction |
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2-7 |
Safety symbol and signal word review........................ |
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2 |
Preparing your garage door ........................................ |
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3 |
Tools needed ............................................................... |
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3 |
Planning .................................................................. |
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4-5 |
Carton inventory .......................................................... |
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6 |
Hardware inventory ..................................................... |
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7 |
Assembly |
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8-11 |
Fasten the rail to the motor unit .............................. |
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8, 9 |
Install the chain and the sprocket cover ..................... |
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8 |
Install the chain spreader and the chain ................... |
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10 |
Tighten the chain ....................................................... |
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11 |
Installation |
11-27 |
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Installation safety instructions.................................... |
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11 |
Determine the header bracket location................ |
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12-13 |
Install the header bracket.......................................... |
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14 |
Attach the rail to the header bracket......................... |
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15 |
Position the opener ................................................... |
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16 |
Hang the opener ....................................................... |
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17 |
Install the door control............................................... |
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18 |
Install the light and lens ............................................ |
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19 |
Attach the emergency release rope and handle |
.......19 |
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Electrical requirements.............................................. |
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20 |
Install the Protector SystemÆ................................ |
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21-23 |
Fasten the door bracket ....................................... |
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24-25 |
Connect the door arm to the trolley ..................... |
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26-27 |
Adjustment |
28-30 |
Adjust the travel limits ............................................... |
28 |
Adjust the force ......................................................... |
29 |
Test the safety reversal system................................. |
30 |
Test the Protector SystemÆ........................................ |
30 |
Operation |
31-34 |
Operation safety instructions..................................... |
31 |
Using your garage door opener ................................ |
31 |
Using the wall-mounted door control ........................ |
32 |
To open the door manually........................................ |
32 |
Care of your garage door opener.............................. |
33 |
Having a problem? .................................................... |
34 |
Programming |
35-36 |
To add or reprogram a hand-held remote control .....35 |
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To erase all codes ..................................................... |
35 |
3-Button remotes....................................................... |
35 |
To add, reprogram or change |
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a Keyless Entry PIN .................................................. |
36 |
Repair Parts |
37-38 |
Rail assembly parts................................................... |
37 |
Installation parts ........................................................ |
37 |
Motor unit assembly parts ......................................... |
38 |
Accessories |
39 |
Repair Parts and Service |
40 |
Warranty |
40 |
INTRODUCTION
Safety Symbol
and Signal Word Review
This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual.
WARNING
Mechanical
WARNING
Electrical
CAUTION
When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will alert you to the possibility of damage to your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany it. Read them carefully.
2
Before you begin:
ïDisable locks.
ïRemove any ropes connected to garage door.
ïComplete the following test to make sure your garage door is balanced and is not sticking or binding:
1.Lift the door about halfway as shown. Release the door. If balanced, it should stay in place, supported entirely by its springs.
2.Raise and lower the door to see if there is any binding or sticking.
If your door binds, sticks, or is out of balance, call a trained door systems technician.
Sectional Door
One-Piece Door
WARNING
To prevent possible SERIOUS INJURY OR DEATH:
•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when required.
•NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets 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.
CAUTION
To prevent damage to garage door and opener:
•ALWAYS disable locks BEFORE installing and operating the opener.
•ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage.
Tools needed
During assembly, installation and adjustment of the opener, instructions will call for hand tools as illustrated below.
Carpenter's
Level (Optional)
Pencil
1 |
2 |
Hack Saw
Tape Measure
Wire Cutters
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Drill |
3/16", 5/16" and |
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Claw Hammer |
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5/32" Drill Bits |
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Pliers |
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Stepladder |
1/2" and 7/16" Sockets |
Screwdriver |
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and Wrench |
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Adjustable End Wrench |
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3
Identify the type and height of your garage door. Survey 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.
Depending on your requirements, there are several installation steps which may call for materials or hardware not included in the carton.
ïInstallation Step 1 ñ Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.
ïInstallation Step 5 ñ Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware may be required.
ïInstallation Step 10 ñ Depending upon garage construction, extension brackets or wood blocks may be needed to install sensors.
ïInstallation Step 10 ñ Alternate floor mounting of the safety reversing sensor will require hardware not provided.
ïDo you have an access door in addition to the garage door? If not, Model 1702 Outside Quick Release is required. See Accessories page.
ïLook at the garage door where it meets the floor. Any gap between the floor and the bottom of the door must not exceed 1/4" (6 mm). Otherwise, the safety reversal system may not work properly. See Adjustment Step 3. Floor or door should be repaired.
SECTIONAL DOOR INSTALLATIONS
ïDo you have a steel, aluminum, fiberglass or glass panel door? If so, horizontal and vertical reinforcement is required (Installation Step 11).
ïThe opener should be installed above the center of the door. If there is a torsion spring or center bearing plate in the way of the header bracket, it may be installed within 4 feet (1.22 m) to the left or right of the door center. See Installation Steps 1 and 11.
ïIf your door is more than 7 feet (2.13 m) high, see rail extension kits listed on Accessories page.
SECTIONAL DOOR INSTALLATION |
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FINISHED CEILING |
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Support bracket & |
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fastening hardware |
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is required. |
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Horizontal and vertical reinforcement |
Slack in chain tension |
See page 17. |
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is needed for lightweight garage doors |
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is normal when |
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(fiberglass, steel, aluminum, door with |
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garage door is closed |
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glass panels, etc.). See page 24 for details. |
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Header Wall |
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Motor unit |
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Extension |
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Torsion OR |
Spring |
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Spring |
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Wall- |
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mounted Access |
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Door |
Door |
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Control |
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— |
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Vertical |
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— |
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CLOSED POSITION |
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Centerline of |
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Header |
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Garage Door |
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Chain Pulley |
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Bracket |
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Bracket |
Trolley |
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— — — |
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Garage |
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Door |
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— — |
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Spring |
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Straight |
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Emergency |
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Safety |
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Door |
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Arm |
Release |
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Gap between floor |
Reversing |
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Rope & Handle |
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Safety Reversing Sensor |
and bottom of door must |
Sensor |
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Curved |
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not exceed 1/4" (6 mm) |
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Door |
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Header |
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Arm |
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Wall |
Door Bracket |
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Garage |
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Door |
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4
Planning (Continued)
ONE-PIECE DOOR INSTALLATIONS
ïGenerally, a one-piece door does not require reinforcement. If your door is lightweight, refer to the information relating to sectional doors in Installation Step 11.
ïDepending on your doorís construction, you may need additional mounting hardware for the door bracket (Step 11).
ONE-PIECE DOOR WITHOUT TRACK
Slack in chain tension is normal when
garage door is closed. Header
Wall
WARNING
Without a properly working safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
•The gap between the bottom of the garage door and the floor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety reversal system may not work properly.
•The floor or the garage door MUST be repaired to eliminate the gap.
FINISHED CEILING Support bracket & fastening hardware is required. See page 17.
Motor Unit
Gap between floor
and bottom of door must Safety Reversing not exceed 1/4" (6 mm) Sensor
Wall-mounted |
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Door Control |
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Access |
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Door |
CLOSED POSITION |
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Chain |
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Pulley Bracket |
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Trolley |
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Header |
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Bracket |
Rail |
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Door |
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Bracket |
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Safety Reversing |
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Emergency |
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Release |
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Sensor |
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Straight |
Curved |
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Rope |
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Door |
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Door |
& Handle |
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Arm |
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Header |
Garage |
Arm |
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Wall |
Door |
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ONE-PIECE DOOR WITH TRACK
Safety
Reversing
Sensor
Gap between floor and bottom of door must not exceed 1/4" (6 mm)
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CLOSED POSITION |
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Chain |
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Chain |
Trolley |
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Header |
Pulley Bracket |
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Wall |
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Access |
Header |
Curved |
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Door |
Bracket |
Door Arm |
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Rail |
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Door |
Straight |
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Garage |
Bracket |
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Door |
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Door |
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Arm |
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Emergency Release |
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Rope & Handle |
Safety |
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Reversing |
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Sensor |
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5
Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below. Note that 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 assembly and installation is shown on the next page. Save the carton and packing material until installation and adjustment is complete.
All Models except 1256R & 1246R
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SECURITY ® |
Sprocket Cover |
Styrofoam |
Lighted Door Control Button |
Single-Button Remote Control (1) |
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w/6ABx1-1/2" screws |
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Chain |
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Remote Control
Transmitter Visor Clip
Models 1256R, 1255R, 1246R, & 1245R
Models 1256R & 1246R only
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2-Conductor Bell Wire |
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White & White/Red |
One-Piece |
Light Lens (1) |
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Rail |
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Chain Spreader with
Screws and Washers
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ON |
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MOU |
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ILIN |
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UP |
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Trolley
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Chain |
Header Bracket |
Pulley Bracket |
Curved Door Arm Section
Straight Door
Arm Section
Door Bracket
Safety Sensor
Bracket (2)
Safety Labels and Literature
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached
6
Separate all hardware and group as shown below for the assembly and installation procedures.
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INSTALLATION HARDWARE |
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Lag Screw |
Hex Bolt |
Lock Washer 5/16" (4) |
Rail Grease |
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5/16"-9 x1-5/8" (2) |
5/16"-18x7/8" (4) |
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NOTICE |
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Lag Screw |
Handle |
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5/16"-18x1-7/8" (2) |
Nut 5/16"-18 (4) |
Ring Fastener (3) |
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Rope |
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Self-Threading Screw |
Dry Wall |
Carriage Bolts |
Wing Nut |
Staples (30) |
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1/4"-14x5/8" (2) |
Anchors (2) |
1/4"-20x1/2" (2) |
1/4"-20 (2) |
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Clevis Pin |
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Clevis Pin |
Clevis Pin |
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5/16"x2-3/4" (1) |
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5/16"x1" (1) |
5/16"x1-1/4" (1) |
7
ASSEMBLY STEP 1
Fasten the Rail to the Motor Unit
MODELS 1255R 1245R, and 1240R
(For Models 1256R and 1246R see page 9)
ïRemove the two washered bolts mounted in top of motor unit.
ïPosition rail at an angle to opener so one hole in rail and motor unit line up.
ïThread one of the washered bolts part way in.
Use only these bolts! Use of any other bolts will cause serious damage to door opener.
ïAlign rail and styrofoam over sprocket. Cut tape from rail, chain and styrofoam.
ïREMOVE STYROFOAM.
ASSEMBLY STEP 2
Attach the Chain to the Sprocket and Install the Sprocket Cover
MODELS 1255R 1245R, and 1240R
ïPosition chain over the sprocket. If necessary, loosen the outer nut on the trolley to obtain more chain slack.
ïInsert the second washered bolt. CAUTION: Use only the bolt previously removed from motor unit!
ïTighten both screws securely through the rail into the motor unit as shown.
ïInstall the sprocket cover: Insert the back tab in the slot. Squeeze the cover slightly and insert the front tab in the slot on the mounting plate.
Proceed to Assembly Step 3.
CAUTION
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.
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Washered Bolt |
USE ONLY THIS |
5/16"-18x1/2" |
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TYPE AND SIZE |
Styrofoam |
BOLT |
Rail |
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Hole |
Washered Bolt |
Motor Unit |
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Sprocket |
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USE ONLY THIS
TYPE AND SIZE
BOLT
Sprocket Cover
Back Tab Slot
Front Tab Slot
Mounting
Plate
8
ASSEMBLY STEP 1
Fasten the Rail to the Motor Unit
MODELS 1256R and 1246R ONLY
ïRemove the two washered bolts mounted in top of motor unit.
ïAlign rail and styrofoam over sprocket.
ïCut tape from rail, chain and styrofoam. Remove styrofoam and pull the chain back (away from the mounting plate).
ïFasten the rail with the two washered bolts previously removed. Tighten securely.
Use only these bolts! Use of any other bolts will cause serious damage to door opener.
CAUTION
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.
Styrofoam
Packaging
Chain |
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Rail |
USE ONLY THIS |
Washered |
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Bolts |
TYPE AND SIZE |
5/16"-18x1/2" |
BOLT |
Motor
Unit
Sprocket
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Washered Bolts |
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5/16"-18x1/2" |
USE ONLY THIS |
Mounting |
Plate |
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TYPE AND SIZE |
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BOLT |
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Styrofoam
Packaging
9
ASSEMBLY STEP 2
Attach the Chain Spreader
and Re-install the Chain
MODELS 1256R AND 1246R ONLY
ïLine up the holes in the chain spreader with the holes in the motor unit as shown. The slot in the chain spreader must fit over the Rail flange (Figure 1).
ïSecurely fasten the chain spreader with the hardware provided.
ïRemove the trolley threaded shaft from the trolley by loosening the inner nut and lock washer (Figure 2).
ïGuide the chain around the selected groove in the chain spreader (to engage either the 8-tooth sprocket or the 6-tooth sprocket) as shown (Figure 3).
ïContinue dispensing the chain forward to the trolley (Figure 4). Reconnect the trolley to the trolley threaded shaft. Proceed to Assembly Step 3 for chain tightening instructions.
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Outer |
Inner Nut |
Trolley |
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Nut |
and Washer |
Threaded Shaft |
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Rail
Trolley
Figure 2
WARNING
To avoid possible SERIOUS INJURY to fingers from moving garage door opener:
•ALWAYS keep hand clear of sprocket while operating opener.
•Securely attach sprocket cover BEFORE operating.
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#8x1" |
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Hex Screw |
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USE ONLY |
Washers |
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Chain |
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THIS TYPE |
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Spreader |
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AND SIZE |
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Slot |
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SCREW |
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Rail
Flange
Figure 1
Chain |
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Spreader |
8-Tooth |
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Sprocket |
Motor Unit
Mounting Plate
Chain
Spreader 6-Tooth
Sprocket
Motor Unit
Mounting Plate
Figure 3
Install Chain
In This Direction
Chain |
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Spreader |
Sprocket |
Figure 4
10
ASSEMBLY STEP 5
Tighten the Chain
ALL MODELS
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Lock |
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Outer Nut |
Washer |
Inner Nut |
To Tighten Outer Nut |
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ïSpin the inner nut and lock washer down the trolley threaded shaft, away from the trolley.
ïTo tighten the chain, turn outer nut in the direction shown. AS YOU TURN THE NUT, KEEP THE CHAIN FROM TWISTING.
ïWhen the chain is approximately 1/2" (13 mm) above the base of the rail at its midpoint, re-tighten the inner nut to secure the adjustment.
Sprocket noise can result if chain is either too loose or too tight.
NOTE: When installation is complete, you may notice some chain droop with the door closed. This is normal. If the chain returns to the position shown when the door is open, do not re-adjust the chain.
NOTE: During future maintenance, ALWAYS pull the emergency release handle to disconnect trolley before adjusting chain.
You have now finished assembling your garage door opener. Please read the following warnings before proceeding to the installation section.
To Tighten
Inner Nut
Trolley
Chain
1/2" (13 mm)
Base of Rail Mid Length of Rail
IMPORTANT INSTALLATION INSTRUCTIONS
WARNING
To reduce the risk of SEVERE INJURY or DEATH:
1.READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2.Install 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 opener to avoid entanglement.
5.Install garage door opener 7 feet (2.13 m) or more above floor.
6.Mount emergency release handle 6 feet (1.83 m) above floor.
7.NEVER connect garage door opener to power source until instructed to do so.
8.NEVER wear watches, rings or loose clothing while installing or servicing opener. They could be caught in garage door or opener mechanisms.
9.Install wall-mounted garage door control:
•within sight of the garage door.
•out of reach of children at minimum height of 5 feet (1.5 m).
•away from all moving parts of the door.
10.Place entrapment warning label on wall next to garage door control.
11.Place manual release/safety reverse test label in plain view on inside of garage door.
12.Upon completion of installation, test safety reversal system. Door MUST reverse on contact with a 1-1/2” (3.8 cm) high object (or a 2x4 laid flat) on the floor.
11
Determine the Header Bracket
Location
WARNING
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 reverse when required. DO NOT install header bracket over drywall.
•Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
•NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, all of which are under EXTREME tension.
•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door might not reverse when required.
Finished
Ceiling
Header |
2x4 |
Structural |
Wall |
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Supports |
Vertical
Centerline
of Garage Door
Installation procedures vary according to garage door types. Follow the instructions which apply to your door.
SECTIONAL DOOR
AND ONE-PIECE DOOR WITH TRACK
1.Close the door and mark the inside vertical centerline of the garage door.
2.Extend the line onto the header wall above the door.
You can fasten the header bracket within 4 feet (1.2 m) of the left or right of the door center only if a torsion spring or center bearing plate is in the way; or you can attach it to the ceiling (see page 10) when clearance is minimal. (It may be mounted on the wall upside down if necessary, to gain approximately 1/2" (1 cm).)
If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports as shown here and on page 13.
3.Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header wall 2" (5 cm) above the high point. This height will provide travel clearance for the top edge of the door.
Proceed to Step 2, page 14.
Ceiling |
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Header Wall |
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2" (5 cm) |
Track |
Highest Point |
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of Travel |
Sectional door |
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with curved |
Door |
track |
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Header Wall |
2" (5 cm) Track
One-piece |
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Highest Point |
door with |
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of Travel |
Door |
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horizontal |
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track |
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