Chamberlain LiftMaster ATS 2113X User manual

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.■
DO NOT exceed 8 complete cycles of door operation per hour.■
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
COMMERCIAL DOOR OPENER
Model ATS 2113X 1/2 HP
For Residential And Light Duty Commercial Use
Install on Sectional Doors Only
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2
Introduction 2-5
Safety symbol and signal word review . . . . . . . . . . . . . . . . . . . . .2
Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Tools needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hardware inventory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Assembly 6-7
Attach the rail to the motor unit . . . . . . . . . . . . . . . . . . . . . . . . . .6
Attach the chain to the sprocket and
install the rail support bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Tighten the chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation 7-19
Installation safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Determine the header bracket location . . . . . . . . . . . . . . . . . . . . .8
Install the header bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Attach the rail to the header bracket . . . . . . . . . . . . . . . . . . . . . .10
Position the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Hang the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Install the door control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Install the light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Attach the emergency release rope and handle. . . . . . . . . . . . . .13
Electrical requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Install the Protector System®. . . . . . . . . . . . . . . . . . . . . . . . 15-17
Fasten the door bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Connect the door arm to the trolley . . . . . . . . . . . . . . . . . . . . . .19
Adjustment 20-22
Adjust the travel limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Adjust the force. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Test the safety reversal system. . . . . . . . . . . . . . . . . . . . . . . . . .22
Test the Protector System®. . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Operation 23-25
Operation safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Using your garage door opener . . . . . . . . . . . . . . . . . . . . . . . . .23
Using the wall-mounted door control . . . . . . . . . . . . . . . . . . . . .24
To open the door manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Care of your garage door opener . . . . . . . . . . . . . . . . . . . . . . . .24
Having a problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Programming 26-28
3-Button remote controls (Optional). . . . . . . . . . . . . . . . . . . . . .26
To add or change a Keyless Entry PIN (Optional) . . . . . . . . . . . .27
Multi-Function door control (Optional) . . . . . . . . . . . . . . . . . . . .28
Repair Parts 29-32
Rail assembly parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Accessories 31
Repair Parts and Service 32
Warranty 32
TABLE OF CONTENTS
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.
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.
Mechanical
Electrical

3
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:
Lift the door about halfway as shown. Release the door. If1. balanced, it should stay in place, supported entirely by its
springs.
Raise and lower the door to see if there is any binding or2. sticking.
If your door binds, sticks, or is out of balance, call a trained door
systems technician.
Tools needed
During assembly, installation and adjustment of the opener,
instructions will call for hand tools as illustrated below.
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.
This product is for use on sectional garage doors• ONLY.
SERIOUS INJURY could result from the use of this product
on one piece garage doors.
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.
Pliers
Wire Cutters
Claw Hammer
Hack Saw
Screwdriver Adjustable End Wrench
1/2" and 7/16" Sockets
and Wrench
Drill
Tape Measure
2
1
Stepladder
Pencil
3/16", 5/16" and
5/32" Drill Bits
Carpenter’s
Level (Optional)
Sectional Door

4
Safety Reversing Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panels, etc.).
See page 18 for details.
Support bracket &
fastening hardware
is required.
See page 11.
— — — — — — — —
Header Wall
Safety
Reversing
Sensor
Gap between floor and bottom
of door must not exceed 1/4"
FINISHED CEILING
Extension Spring
Torsion Spring
Access Door
OR
Slack in chain tension
is normal when
garage door is closed.
Vertical Centerline
of Garage Door
Wall-
mounted
Door
Control
SECTIONAL DOOR INSTALLATION
Planning
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.
Chain Pulley
Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
Chain
CLOSED POSITION
Rail
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.

5
Straight
Door Arm
Door Bracket Plate
Door Bracket
Safety Labels
and Literature
"C" Wrap (2)
2 -Conductor Bell Wire
White & White/Red
Curved Door Arm
Rail
Styrofoam
Chain
Pulley Bracket
Trolley
Chain
Safety Reversing Sensor
Mounting Bracket
With Slot (2)
Safety Reversing Sensor
Mounting Bracket
With Square Holes (2)
Mounting Hardware
(Rail Support Bracket)
Header Bracket with
Clevis Pin and Fastener
UP
CEILING MOUNT ONLY
Lighted Door
Control Button
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Rail Support
Bracket
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Motor Unit
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
Assembly Hardware
Washered Bolt, 5/16"-18x1/2" (2)
(Mounted in Opener)
Hex Screw 1/4"-20x5/8" (2)
Lock Washer 1/4"-20x5/8" (2)
Screw #8-32x3/8" (1)
Washered Bolt
5/16"-18x1/2" (2)
Installation Hardware
Hex Screw 5/16"-18x7/8" (4)
Nut 5/16"-18 (4)
Lock Washer 5/16" (4)
Rail Grease
Lag Screw 5/16"-9x1-5/8" (2)
Lag Screw 5/16”-18x1-7/8” (2)-
Screw 6ABx1-1/2" (2)
Handle
Ring Fastener (3)
Self-Tapping Screw 1/4"-14x5/8" (2)
Insulated Staples (10)
Drywall Anchors (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1" (2)
Rope
Hardware for Safety
Reversing Sensor
Lag Screw 1/4"x1-1/2" (4)
Carriage Bolt 1/4"-20x1/2" (4)
Lock Nut 1/4"-20 (4)
Wing Nut (2)
Hex Screw 1/4-20x1-1/2" (2)
Screw #10-32x3/8" (4)
Lock Nut #10x32 (4)
Insulated Staples (20)
HARDWARE INVENTORY

6
ASSEMBLY STEP 1
Attach the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door
opener until instructed to do so.
Place the opener on packing material to protect the cover.•
Remove the (2) 5/16"-18x1/2" washered bolts mounted in the• top of the motor unit.
Position rail at a 45˚ angle to opener so one hole in rail and• motor unit line up.
Thread one of the washered bolts part way in.•
Use only these bolts! Use of any other bolts will cause serious
damage to door opener.
Align rail over sprocket. Cut tape from rail.•
Chain
Spreader
Sprocket
Chain
USE ONLY THIS
TYPE AND SIZE
BOLT
Opener
Washered Bolt
5/16"-18x1/2"
Rail
To avoid SERIOUS damage to opener, ONLY use bolts/
fasteners mounted in top of motor unit.
ASSEMBLY STEP 2
Attach the Chain to the Sprocket and Install the Rail
Support Bracket
Guide the chain over chain spreader and opener sprocket. If• necessary, loosen the outer nut on the trolley to obtain more
chain slack. Insert the second washered bolt. Use only the
bolts previously removed from opener.
Tighten both bolts securely through the rail into the opener as• shown.
Position the rail support bracket on the opener.•
Attach the bracket to the rail with 1/4"-20x5/8" hex bolts and• lock washers. DO NOT overtighten.
Attach the bracket to the opener by inserting a 5/16"-18x1/2"• washered bolt through a hole in each side flange and a
matching hole in the bracket. Complete the connection by
inserting the #8-32x3/8" screw through the back flange and
the hole in rail support.
Proceed to Assembly Step 3.
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
ALWAYS keep hand clear of sprocket while operating opener.•
Securely attach rail support bracket BEFORE operating.•
Hex bolts
with Lock Washers
1/4"-20x5/8"
Rail Support
Bracket
Washered Bolt
5/16"-18x1/2"
Washered Bolt
5/16"-18x1/2"
Screw
#8-32x3/8"
Opener
Side Flange
Opener
Back Flange
Washered Bolt
5/16"-18x1/2"
Hex Bolt
1/4"-20x5/8"
Screw
#8-32x3/8"
Lock Washer
HARDWARE SHOWN ACTUAL SIZE

7
ASSEMBLY STEP 3
Tighten the Chain
Spin the inner nut and lock washer down the threaded shaft,• away from the trolley.
To tighten the chain, turn outer nut in the direction shown.• As
you turn the nut, keep the chain from twisting.
When the chain is approximately 1/2" (1.27 cm) 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.
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 Outer Nut
Inner Nut
Lock
Washer
Trolley
Chain
Base of Rail
1/2" (1.27 cm)
Outer Nut
To Tighten Inner Nut
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNINGWARNING
READ AND FOLLOW ALL INSTALLATION WARNINGS AND1. INSTRUCTIONS.
Install garage door opener only on properly balanced and2. lubricated garage door. An improperly balanced door may
not reverse when required and could result in SEVERE
INJURY or DEATH.
ALL3. repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician
BEFORE installing opener.
Disable4. ALL locks and remove ALL ropes connected
to garage door BEFORE installing opener to avoid
entanglement.
Install garage door opener 7 feet (2.13 m) or more above5. floor.
Mount emergency release handle 6 feet (1.83 m) above6. floor.
NEVER connect garage door opener to power source until7. instructed to do so.
NEVER wear watches, rings or loose clothing while installing8. or servicing opener. They could be caught in garage door or
opener mechanisms.
Install wall-mounted garage door control:9.
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.
Install the entrapment warning placard next to the control10. station in a prominent location.
Place manual release/safety reverse test label in plain view11. on inside of garage door.
Upon completion of installation, test safety reversal system.12. Door MUST reverse on contact with a 1-1/2" (3.8 cm) high
object (or a 2x4 laid flat) on the floor.

8
INSTALLATION STEP 1
Determine the Header Bracket Location
Close the door and mark the inside vertical centerline of the1. garage door.
Extend the line onto the header wall above the door.2.
You can fasten the header bracket within 4 feet (1.22 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 9) when clearance is minimal. (It may
be mounted on the wall upside down if necessary, to gain
approximately 1/2" (1.27 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 9.
Open your door to the highest point of travel as shown. Draw3. 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 9.
Header Wall
Ceiling
Track
Highest Point
of Travel
Door
2" (5 cm)
Unfinished
Ceiling OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Header Wall
2x4 Structural
Supports
Vertical Centerline
of Garage Door
Level
(optional)
2x4
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.
SECTIONAL DOOR WITH CURVED TRACK

9
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
Center the bracket on the vertical centerline with the bottom• edge of the bracket on the horizontal line as shown (with the
arrow pointing toward the ceiling).
Mark the vertical set of bracket holes (do not use the holes• designated for ceiling mount). Drill 3/16" pilot holes and fasten
the bracket securely to a structural support with the hardware
provided.
Lag Screw
5/16"x9x1-5/8"
HARDWARE SHOWN ACTUAL SIZE
Lag Screws
5/16"-9x1-5/8"
UP
Optional
UP
CEILING MOUNTONLY
Door Spring
Header
Bracket
2x4
Structural
Support
Vertical
Centerline of
Garage Door
Vertical
Centerline of
Garage Door
Horizontal
Line
Wall Mounting Holes
Highest Point of
Garage Door Travel
Wall Mounting Holes
CEILING MOUNT ONLY
The nail hole is for positioning
only. You must use lag screws to
mount the header bracket.
Header Wall
Garage Door
UP
Ceiling Mounting Holes
CEILING MOUNT ONLY
UP
Lag Screws
5/16"-9x1-5/8"
Garage Door
– Finished Ceiling –
– Hearder Wall –
Header
Bracket
6" (15 cm)
Maximum
Door
Spring
Vertical
Centerline of
Garage Door
Vertical
Centerline of
Garage Door
The nail hole is for positioning
only. You must use lag screws
to mount the header bracket.
CEILING HEADER BRACKET INSTALLATION
Extend the vertical centerline onto the ceiling as shown.•
Center the bracket on the vertical mark, no more than 6"• (15 cm) from the wall. Make sure the arrow is pointing toward
the wall. The bracket can be mounted flush against the ceiling
when clearance is minimal.
Mark the side holes. Drill 3/16" pilot holes and fasten bracket• securely to a structural support with the hardware provided.

10
Clevis Pin
5/16"x2-3/4" Ring Fastener
Header
Bracket
Chain
Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
Rail
Clevis Pin
5/16"x2-3/4"
Ring Fastener
Header Bracket
Chain
Pulley
Bracket
Rail
HARDWARE SHOWN ACTUAL SIZE
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 chain pulley bracket against the header bracket.•
Align the bracket holes and join with a clevis pin as shown.•
Insert a ring fastener to secure.•

11
INSTALLATION STEP 4
Position the Opener
SECTIONAL DOOR ONLY
A 2x4 laid flat is convenient 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.
Trolley
Release Arm
ENGAGED RELEASED
To prevent damage to garage door, rest garage door opener rail
on 2x4 placed on top section of door.
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
toward the motor unit. The trolley can remain disconnected
until Installation Step 12 is completed.
Rail
2x4 is used to determine
the correct mounting height
from the ceiling
Door
INSTALLATION STEP 5
Hang the Opener
Two representative installations are shown. Yours may be
different. Hanging brackets should be angled (Figure 1) to provide
rigid support. On finished ceilings (Figure 2), attach a sturdy metal
bracket to structural supports before installing the opener. This
bracket and fastening hardware are not provided.
Measure the distance from each side of the motor unit to the1. structural support.
Cut both pieces of the hanging bracket to required lengths.2.
Drill 3/16" pilot holes in the structural supports.3.
Attach one end of each bracket to a support with4. 5/16"-18x1-7/8" lag screws.
Fasten the opener to the hanging brackets with 5/16"-18x7/8"5. hex bolts, lock washers and nuts.
Check to make sure the rail is centered over the door (or in line6. with the header bracket if the bracket is not centered above the
door).
Remove the 2x4. Operate the door manually. If the door hits the7. rail, raise the header bracket.
Grease the top and underside of the rail surface where the8. trolley slides with rail grease.
Lag Screw 5/16"-18x1-7/8"
Hex Bolt
5/16"-18x7/8" Nut 5/16"-18 Lock Washer 5/16"
HARDWARE SHOWN ACTUAL SIZE
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Measure
Distance
Lag Screws
5/16"-18x1-7/8"
Structural
Supports
Lag Screws
5/16"-18x1-7/8"
Bracket
(Not Provided)
FINISHED CEILING
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Hidden Support
Figure 1
Figure 2
To avoid possible SERIOUS INJURY from a falling garage door
opener, fasten it SECURELY to structural supports of the garage.
Concrete anchors MUST be used if installing ANY brackets into
masonry.

12
Drywall Anchors
Insulated
Staples
Screw 6ABx1-1/2"
Lighted Door Control Button
HARDWARE SHOWN ACTUAL SIZE
To prevent possible SERIOUS INJURY or DEATH from
electrocution:
Be sure power is not connected BEFORE installing door• control.
Connect ONLY to 24 VOLT low voltage wires.•
To prevent possible SERIOUS INJURY or DEATH from a closing
garage door:
Install door control within sight of garage door, out of reach• of children at a minimum height of 5 feet (1.5 m), and away
from ALL moving parts of door.
NEVER permit children to operate or play with door control• push buttons or remote control transmitters.
Activate door ONLY when it can be seen clearly, is properly• adjusted, and there are no obstructions to door travel.
ALWAYS keep garage door in sight until completely closed.• NEVER permit anyone to cross path of closing garage door.
Lighted
Door Control
Button
2-Conductor
Bell Wire
KG KG
1
3
9
7
5
1
3
9
7
5
23
1
Opener
Terminal
Screws
Antenna
Back Panel
of Opener
Lighted
Door Control
Terminal Screws
2-Conductor
Bell Wire
WHT
RED
-2
-1
INSTALLATION STEP 6
Install the Door Control
Locate the door control within sight of the door at a minimum
height of 5 feet (1.5 m) where small children cannot reach, and
away from all moving parts of the door and door hardware.
Strip 7/16" (11 mm) of insulation from one end of the bell wire.1. Connect it to the two screw terminals on the back of the door
control by color: white wire to 2 and white/red wire to 1.
Fasten the Lighted Door Control Button securely with2. 6ABx1-1/2" screws. If installing into drywall, drill 5/32" holes
and use the anchors provided.
Run the bell wire up the wall and across the ceiling to the3. opener. Use insulated staples to secure the wire in several
places. Be careful not to pierce the wire with a staple, creating a
short or open circuit.
Receiver terminal screws and the antenna are located on the4. back panel of the motor unit. Position the antenna wire as
shown.
Connect the bell wire by color to the opener terminal screws:5. white to 2 and white/red to 1.
Use tacks or staples to permanently attach the entrapment6. warning label to the wall near the door control, and the manual
release/safety reverse test in a prominent location on the inside
of the garage door.
NOTE: DO NOT connect the power and operate the opener at this
time. The trolley will travel 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 15.
TO PREVENT THE MOTOR PROTECTOR FROM
TRIPPING, DO NOT EXCEED 8 DOOR
OPERATIONS PER HOUR.
FASTEN LABEL ADJACENT TO DOOR
POUR ÉVITER QUE LE DISPOSITIF DE
PROTECTION DU MOTEUR NE SE
DÉCLENCHE, NE PAS FAIRE FONCTIONNER
LA PORTE PLUS DE 8 FOIS PAR HEURE.
FIXER L'ÉTIQUETTE PRÈS DE LA PORTE.
132A2112A
WARNING
Keep Door in Sight at all Times When Door is Moving
Moving Door Can Cause
Serious Injury or Death
Keep Clear! Door May Move at any Time
Without Prior Warning
Do Not Let Children Operate the Door or Play
in the Door Area
Outside Keylock Accessory Connections
To opener terminal screws: White to 2 and white/red to 1.

13
INSTALLATION STEP 7
Install the Light
Install a 75 watt maximum light bulb in the socket. The light• will turn ON and remain lit for approximately 4-1/2 minutes
when power is connected. Then the light will turn OFF.
If the bulb burns out prematurely due to vibration, replace with• a “Garage Door Opener” bulb.
NOTE: Use only standard light bulbs. The use of short neck or
specialty light bulbs may overheat the endpanel or light socket.
Trolley
NOTICE
Overhand
Knot
Emergency
Release Handle
Rope
Trolley
Release Arm
To prevent possible SERIOUS 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• becomes untied, you could fall.
Opener
75 Watt Max.
Light Bulb
To prevent possible OVERHEATING of the endpanel or light
socket,
DO NOT use short neck or specialty light bulbs.•
DO NOT use halogen bulbs. Use ONLY incandescent.•
INSTALLATION STEP 8
Attach the Emergency Release Rope and Handle
Thread one end of the rope through the hole in the top of the• red handle so “NOTICE” reads right side up as shown. Secure
with an overhand knot at least 1" (2.54 cm) 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 (1.83 m) 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.

14
INSTALLATION STEP 9
Electrical Requirements
To avoid installation difficulties, do not run the opener at this
time.
To reduce the risk of electric shock, your garage door opener has
a grounding type plug with a third grounding pin. This plug will
only fit into a grounding type outlet. If the plug doesn't fit into the
outlet you have, contact a qualified electrician to install the proper
outlet.
If permanent wiring is required by your local code, refer to the
following procedure.
To make a permanent connection through the 7/8" hole in the top
of the motor unit:
Remove the motor unit cover screws and set the cover aside.•
Remove the attached 3-prong cord.•
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
Ground Tab
Green
Ground Screw
Ground Wire
Black Wire
PERMANENT WIRING
CONNECTION
White Wire
Black
Wire
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fire:
Be sure power is not connected to the opener, and• disconnect power to circuit BEFORE removing cover to
establish permanent wiring connection.
Garage door installation and wiring MUST be in compliance• with ALL local electrical and building codes.
NEVER use an extension cord, 2-wire adapter, or change• plug in ANY way to make it fit outlet. Be sure the opener is
grounded.

15
Invisible Light Beam
Protection Area
Safety Reversing Sensor
6" (15 cm) max. above floor Safety Reversing Sensor
6" (15 cm) max. above floor
Facing the door from inside the garage
INSTALLATION STEP 10
Install The Protector System®
The safety reversing sensor must be connected and aligned
correctly before the garage door opener will move in the down
direction.
IMPORTANT INFORMATION ABOUT
THE SAFETY REVERSING SENSOR
When properly connected and aligned, the sensor will detect
an obstacle in the path of its electronic beam. The sending
eye transmits an invisible light beam to the receiving eye. If an
obstruction breaks the light beam while the door is closing, the
door will stop and reverse to full open position, and the opener
lights will flash 10 times.
The units must be installed inside the garage so that the sending
and receiving eyes face each other across the door, no more than
6" (15 cm) above the floor. 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.
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.
If installing in masonry construction, add a piece of wood at each
location to avoid drilling extra holes in masonry if repositioning is
necessary.
The invisible light beam path must be unobstructed. No part of
the garage door (or door tracks, springs, hinges, rollers or other
hardware) may interrupt the beam while the door is closing.
Be sure power is not connected to the garage door opener
BEFORE installing the safety reversing sensor.
To prevent SERIOUS INJURY or DEATH from a closing garage
door:
Correctly connect and align the safety reversing sensor. This• required safety device MUST NOT be disabled.
Install the safety reversing sensor so beam is NO HIGHER• than 6" (15 cm) above garage floor.

16
Inside
Garage
Wall
“C” Shaped
Wrap
Mounting Bracket
with Square Holes
1/4-20x1/2"
Carriage Bolts
1/4"-20 Lock Nuts
Drill 3/8"
Holes
Garage
Door Track
Figure 3 Garage DOOR Track Installation
Mounting Bracket
With Square Holes
#10-32x3/8"
Screws
“C” Wrap
#10-32
Lock Nuts
Figure 1 Garage WALL or DOOR Track Installation
Mounting Bracket
with Slot
1/4"-20
Lock Nuts
1/4x1-1/2"
Lag Screws 1/4-20x1/2" Carriage Bolts (with square shoulder)
Inside
Garage
Wall
“C” Wrap
Mounting Bracket
with Square Holes
Figure 2 Garage WALL Installation
Lag Screw 1/4x1-1/2"
Screw
#10-32x3/8"
Lock Nut
1/4"-20
Lock Nut
#10x32 Staples
Carriage Bolts
1/4"-20x1/2"
HARDWARE SHOWN ACTUAL SIZE
Figure 4 Alternate Wall Mount
“C” Wrap
Inside
Garage
Wall
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Sensor
with wire
Indicator Light
Garage
Floor
INSTALLING THE BRACKETS
Figure 1, 2 and 3 show recommended assembly of bracket(s) and
“C” wrap based on the wall installation of the sensors on each side
of the garage door as shown on page 15, or on the garage door
tracks themselves.
Figure 4 and 5 are variations which may fit your installation
requirements better. Make sure the wraps and brackets are
aligned so the sensors will face each other across the garage
door.
Garage Wall or Door Track Installation
Fasten the “C” wraps to the mounting brackets having square1. holes, using th hardware shown in Figure 1.
Garage Wall Installation
Connect each assembly to a slotted bracket, using the hardware2. shown on Figure 2. Note alignment of brackets for left and
right sides of door.
Finger tighten the lock nuts.3.
Use bracket mounting holes as a template to locate and drill4. (2) 3/16" diameter pilot holes on both sides of the garage door,
4"-6" (10-15 cm) above the floor but not exceeding 6" (15 cm)
(see warning on page 15).
Attach bracket assembly with 1/4"x1-1/2" lag screws as shown5. in Figure 2.
Adjust right and left bracket assemblies to the same distance6. out from mounting surface. Make sure all door hardware
obstructions are cleared. Tighten the nuts securely.
Garage Door Track Installation
Discard slotted bracket. Drill 3/8" holes in each track and fasten
securely with hardware as shown in Figure 3.
Garage
Floor
Indicator Light
Inside
Garage
Wall
Mounting Bracket
with Slot
Attach with
concrete
anchors
(not provided)
Mounting Bracket
with Square Holes
“C” Wrap
Sensor with wire
Figure 5 Alternate Floor Mount
Figure 3
Figure 1
Figure 2
Figure 4 Figure 5

17
Hex Bolt
1/4-20 x 1-1/2"
"C" Wrap
Sensor
with Wire
Wing
Nut
Indicator
Light
Figure 6
Invisible Light Beam
Protection Area
Safety Reversing
Sensor
Safety Reversing
Sensor
Connect Wire to
Opener Terminals
Bell Wire
Bell Wire
Finished
Ceiling
Sensor
Connections
Wall Control
Connections
(dotted line)
OPENER TERMINAL SCREWS
12
3
Figure 7
MOUNTING AND WIRING THE SAFETY SENSORS
Center each sensor unit in a “C” wrap with lenses pointing• toward each other across the door (see Figure 6).
Secure sensors with the hardware shown. Finger tighten the• wing nut on the receiving eye to allow for final adjustment.
Securely tighten the sending eye wing nut.
Run the wires from both sensors to the opener (see Figure 7).• Use insulated staples to secure the wire to wall and ceiling.
Strip 1/4" (6 mm) of insulation from each set of wires. Separate• white and white/black wires sufficiently to connect to the
opener terminal screws: white to 2 and white/black to 3.
ALIGNING THE SAFETY SENSORS
Plug in the opener. The indicator lights in both the• sending
and receiving eyes will glow steadily if wiring connections and
alignment are correct.
The sending eye indicator light will glow regardless of alignment
or obstruction. If the indicator light in the receiving eye is off, dim,
or flickering (and the invisible light beam path is not obstructed),
alignment is required.
Loosen 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
If the1. sending eye indicator light does not glow steadily after
installation, check for:
Electric power to the opener.•
A short in the white or white/black wires. These can occur at• staples, or at opener connections.
Incorrect wiring between sensors and opener.•
A broken wire.•
If the2. sending eye indicator light glows steadily but the
receiving eye indicator light doesn't:
Check alignment.•
Check for an open wire to the• receiving eye.
If the3. receiving eye indicator light is dim, realign either sensor.
NOTE: When the invisible beam path is obstructed or misaligned
while the door is closing, the door will reverse. If the door is
already open, it will not close. The opener lights will blink 10
times. (If bulbs are not installed, 10 clicks can be heard.) See
page 15.

18
HARDWARE SHOWN ACTUAL SIZE
Figure 2
Figure 1
Fiberglass, aluminum or lightweight steel garage doors WILL
REQUIRE reinforcement BEFORE installation of door bracket.
Contact your door manufacturer for reinforcement kit.
INSTALLATION STEP 11
Fasten the Door Bracket
A horizontal brace should be long enough to be secured to 2
vertical supports. A vertical brace should cover the height of the
top panel.
The illustration shows one piece of angle iron as the horizontal
brace. For the vertical brace, 2 pieces of angle iron are used to
create a "U"-shaped support. The best solution is to check with
your garage door manufacturer for an opener installation door
reinforcement kit.
Center the door bracket on the previously marked vertical• guideline used for the header bracket installation.
Position the bracket on the face of the door within the following• limits:
The top edge of the bracket 2"-4" (5-10 cm) below the topA) edge of the door.
The top edge of the bracket directly below any structuralB) support across the top of the door.
Mark and drill 5/16" left and right fastening holes. Secure the• bracket as shown in Figure 1 if there is vertical reinforcement.
If your installation doesn't require vertical reinforcement but does
need top and bottom fastening holes for the door bracket, fasten
as shown in Figure 2.
Vertical
Reinforcement
Self-Tapping Screw
1/4"-14x5/8"
Header
Bracket
Door Bracket
Location
Vertical
Centerline
of Garage
Door
Self-Tapping Screw
1/4"-14x5/8"
Self-Tapping Screw
1/4"-14x5/8"
Inside Edge of Door or
Reinforcement Board
Door
Bracket
Plate
Door
Bracket
Door
Bracket
Vertical
Centerline of
Garage Door
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, aluminum, steel doors with
glass panel, etc.). (Not Provided)

19
INSTALLATION STEP 12
Connect Door Arm to Trolley
SECTIONAL DOORS ONLY
Make sure garage door is fully closed. Pull the emergency• release handle to disconnect the outer trolley from the inner
trolley. Slide the outer trolley back (away from the door) about
2" (5 cm) as shown in Figures 1, 2 and 3.
Figure 1:•
Fasten straight door arm section to outer trolley with the– 5/16"x1" clevis pin. Secure the connection with a ring
fastener.
Fasten curved section to the door bracket in the same way,– using the 5/16"x1" clevis pin.
Figure 2:•
Bring arm sections together. Find two pairs of holes that line– up and join sections. Select holes as far 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" (15 cm) 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 bolts, lock– washers and nuts.
Proceed to Adjustment Step 1, page 20. Trolley will re-engage• automatically when opener is operated.
Ring
Fastener
Door
Bracket
Clevis Pin
5/16"x1-1/4"
Curved
Door Arm
Straight
Door Arm
Clevis Pin
5/16"x1"
Inner Trolley
Outer Trolley
Lock
Washers
5/16"
Nuts
5/16"-18
Door Bracket
Bolts
5/16"-18x7/8"
Emergency
Release
Handle
Lock
Washers
5/16"
Nuts
5/16"-18
Bolts
5/16"-18x7/8"
Cut This End
Figure 1
Figure 2
Figure 3
Rondelle-frein
de 5/16 po
Écrou de
5/16 po-18
Anneau
d'arrêt
Boulon hexagonal de
5/16 po-18 x 7/8 po
Axe de chape de
5/16 po x 1 po (Chariot)
Axe de chape de
5/16 po x 1-1/4 po
(Support de la porte)
Clevis Pin 5/16"x1"
Hex Bolt
5/16"-18x7/8"
Lock Washer 5/16" Nut 5/16"-18
Clevis Pin 5/16"x1-1/4" Ring
Fastener
HARDWARE SHOWN ACTUAL SIZE

20
ADJUSTMENT STEP 1
Adjust the UP and DOWN Travel Limits
Limit adjustment settings regulate the points at which the door
will stop when moving up or down.
To operate the opener, press the Door Control push bar. Run the
opener through a complete travel cycle.
Does the door open and close completely?•
Does the door stay closed and not reverse unintentionally when• fully closed?
If your door passes both of these tests, no limit adjustments are
necessary unless the reversing test fails (Adjustment Step 3,
page 22).
Adjustment procedures are outlined below. Read the procedures
carefully before proceeding to Adjustment Step 2. Use a
screwdriver to make limit adjustments. Run the opener through a
complete travel cycle after each adjustment.
NOTE: Repeated operation of the opener during adjustment
procedures may cause the motor to overheat and shut off. Simply
wait 15 minutes and try again.
NOTE: If anything interferes with the door’s upward travel, it will
stop. If anything interferes with the door’s downward travel
(including binding or unbalanced doors), it will reverse.
HOW AND WHEN TO ADJUST THE LIMITS
If the door does not open completely but opens at least 5 feet• (1.5 m):
Increase up travel. Turn the UP limit adjustment screw
clockwise. One turn equals 2" (5 cm) of travel.
NOTE: To prevent the trolley from hitting the cover protection
bolt, keep a minimum distance of 2-4" (5-10 cm) between the
trolley and the bolt.
If door does not open at least 5 feet (1.5 m):•
Adjust the UP (open) force as explained in Adjustment Step 2.
If the door does not close completely:•
Increase down travel. Turn the down limit adjustment screw
counterclockwise. One turn equals 2" (5 cm) of travel.
If door still won't close completely and the trolley bumps
into the pulley bracket (page 4), try lengthening the door arm
(page 19) and decreasing the down limit.
If the opener reverses in fully closed position:•
Decrease down travel. Turn the down limit adjustment screw
clockwise. One turn equals 2" (5 cm) of travel.
If the door reverses when closing and there is no visible• interference to travel cycle:
If the opener lights are flashing, the Safety Reversing Sensors
are either not installed, misaligned, or obstructed. See
Troubleshooting, page 17.
Test the door for binding: Pull the emergency release handle.
Manually open and close the door. If the door is binding or
unbalanced, call for a trained door systems technician. If the
door is balanced and not binding, adjust the DOWN (close)
force. See Adjustment Step 2.
Limit
Adjustment
Screws
Adjustment Label
Left Side
Panel
Cover
Protection
Bolt
2-4"
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
Incorrect adjustment of garage door travel limits will• interfere with proper operation of safety reversal system.
If one control (force or travel limits) is adjusted, the other• control may also need adjustment.
After ANY adjustments are made, the safety reversal system• MUST be tested. Door MUST reverse on contact with 1-1/2"
(3.8 cm) high object (or 2x4 laid flat) on floor.
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.