Chamberlain LiftMaster Professional ATS 211R User manual

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The Chamberlain Group, Inc.
845 Larch Avenue,
Elmhurst, Illinois 60126
MODEL ATS 211R
COMMERCIAL DOOR OPENER
For Residential and Light Duty Commercial Use
Install on Sectional Doors Only
OWNER'S MANUAL
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless the Protector System®is connected
and properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located on the operator cover.
®

Start by reviewing these important safety alert symbols
2
CONTENTS PAGE
A review of safety alert symbols..............................2
You'll need tools ......................................................3
Illustration of door installation .................................4
Opener carton inventory..........................................5
Hardware inventory .................................................5
Assembly Section – Pages 6 - 7
Fasten the rail to the opener..................................6
Attach the chain to the sprocket............................6
Install the rail support bracket................................6
Tighten the chain...................................................7
Installation Section – Pages 8 - 20
Installation instruction warnings.............................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..................................................12
Install the door control.........................................13
Install the light......................................................14
Attach manual release handle.............................14
Electrical requirements........................................15
The Protector System®.........................................16
Install the safety reversing sensor..................17,18
Fasten the door bracket and plate ......................19
CONTENTS PAGE
Connect the door arm to the trolley ....................20
Adjustment Section – Pages 21 - 23
Travel limit adjustments.......................................21
Force adjustments...............................................22
Test the Protector System®..................................23
Test the safety reverse system............................23
Operation safety instructions.................................24
Care of your opener...............................................24
Maintenance schedule...........................................24
Operation of your opener.......................................25
Operation of Optional Accessories:
Model 96LM Remote Control..............................26
Model 58LM Door Control...................................27
Model 68LM Door Control...................................28
Model 67LM Keyless Entry.................................29
Having a problem?..........................................30, 31
Repair parts, rail assembly ...................................32
Repair parts, installation .......................................32
Repair parts, opener assembly.............................33
Accessories ..........................................................34
Index.....................................................................35
How to order repair parts......................................36
Warranty ...............................................................36
When you see these Safety Symbols on the following pages, they will alert you to the possibility of
serious injuries or death if you do not comply with the corresponding instructions. The hazard may
come from something mechanical or from electric shock. Read the instructions carefully.
When you see this Safety Symbol 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 corresponding
instructions. Read the instructions carefully.
This garage door opener is designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the safety instructions contained in this manual.
Mechanical Electrical
WARNING
WARNING
CAUTION

3
An unbalanced garage door might not reverse
when required and someone under the door
could be seriously injured or killed.
If your garage door binds, sticks or is out of
balance, call for professional garage door
service. Garage doors, door springs, cables,
pulleys, brackets and their hardware, are
under extreme tension and can cause serious
injury or death. Do not try to loosen, move or
adjust them yourself!
Ropes left on a garage door could cause
someone to become entangled and killed.
Remove all ropes connected to the door before
installing and operating the opener.
This product is for use on sectional garage
doors only. Serious personal injury could
result from the use of this product on one-
piece garage doors.
To avoid damage to the garage door and
opener, disable locks before installing and
operating the opener. Use a wood screw or nail
to hold locks in the "open" (unlocked)
position.
Operation at other than 120V 60 Hz will cause
opener malfunction and damage.
Before you begin, complete the following test to
make sure your door is balanced and is not
sticking or binding:
• Lift the door about halfway as shown. Release the
door. It should stay in place, supported entirely by
its springs.
• Raise and lower the door to see if there is any
binding or sticking.
Identify the type and height of your door, any special
conditions that exist, and any additional materials
that may be required by referring to the lists on
page 4.
WARNING
CAUTION
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
You'll Need Tools
During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.

4
Safety Reversing Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with glass panels, etc.).
See page 19 for details.
Support bracket &
fastening hardware
is required.
See page 12.
— — — — — — — —
Door Center
Header Wall
Safety
Reversing
Sensor
Floor must be level
across width of door
FINISHED CEILING
Extension Spring
Torsion Spring
Access Door
OR
Slack in chain tension
is normal when
garage door is closed.
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the carton.
• Step 1, page 8 - Look at the wall or ceiling above
the garage door. The header bracket must be
securely fastened to structural supports.
• Step 5, page 12 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware may be required.
• Safety reversing sensor, page 16 - Depending
upon garage construction, wood blocks may need
to be fastened to mounting locations before
sensors are installed.
• Step 10, page 17 - Alternate floor mounting of the
safety reversing sensor will require hardware not
provided.
• Step 11, page 19 - Do you have a steel, aluminum,
fiberglass or glass panel door? If so, horizontal
and vertical reinforcement is required.
• Look at the garage door where it meets the floor.
It must close on the floor all the way across. Other-
wise, the safety reverse system may not work
properly. Floor or door should be repaired. See
page 23.
• If your door is more than 7 feet high, see longer
rails available on page 34.
Chain Pulley
Bracket
Header
Bracket Trolley
Straight
Door
Arm
Manual
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
Chain
Closed Position
Rail
• The opener can be installed within 2 feet to the left or
right of the door center if there is a torsion spring or
center bearing plate in the way of the header bracket
or door bracket area. If your door has extension
springs, the opener must be installed in the center of
the door. See pages 8 and 19.
Do you have an access door in addition to the garage
door? If not, Model 1702 Outside Quick Release is
required. See page 34.
You may find it helpful to refer back to this page as
you proceed with the installation of your opener.
Before you begin, survey your garage area. Do any of the following conditions apply to you?

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
Opener Carton Inventory
Your garage door opener is packaged in two cartons which contain all parts illustrated below. If anything is
missing, carefully check the packing material. Parts may be "stuck" in the foam. Hardware for assembly and
installation is listed below.
Assembly Hardware
5/16"-18x1/2" Washered Screw,
(2) (Mounted in Opener)
1/4"-20x5/8" Hex Screw (2)
1/4"-20x5/8" Lock Washer (2)
#8-32x3/8" Screw (1)
5/16"-18x1/2" Washered Screw (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-Threading Screw 1/4"-14x5/8"
Insulated Staples (10)
Dry Wall Anchors (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1" (2)
Rope
Hardware for Safety Reversing
Sensor
Lag Screw 1/4x1-1/2" (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

Chain
Spreader
Sprocket
Chain
USE ONLY THIS
TYPE AND SIZE
SCREW
Washered Screw
5/16"-18x1/2"
Opener
6
• 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 screw. CAUTION! Use only the
screw previously removed from opener.
• Tighten both screws securely through the rail into
the opener as shown.
1/4"-20x5/8" Hex Screws
with Lock Washers
Rail Support
Bracket
5/16"-18x1/2"
Washered Screw
5/16"-18x1/2"
Washered Screw
#8-32x3/8"
Screw
Opener
Side Flange
Opener
Back Flange
Washered Screw
5/16"-18x1/2"
Hex Screw
1/4"-20x5/8"
Screw
#8-32x3/8"
Lock Washer
Hardware Shown Actual Size
Assembly Section: Pages 6 – 7
• Place the opener on packing material to protect
the cover.
• Remove the (2) 5/16"-18x1/2" washered screws
mounted in the top of the opener.
• Align rail at an angle with opener so one hole in
rail and opener line up.
• Thread one of the washered screws part way in.
Use only these screws! Use of any other screws
will cause serious damage to door opener.
• Cut tape from rail, chain and styrofoam.
• REMOVE STYROFOAM.
Assembly Step 1
Attach the Rail to the Opener
Assembly Step 2
Attach the Chain to the Sprocket
& Install the Rail Support Bracket
Chain
Rail
Styrofoam
Packaging
USE ONLY THIS
TYPE AND SIZE
SCREW
Washered Screw
5/16"-18x1/2"
Rail
Hole
Opener
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.
CAUTION
• Position the rail support bracket on the opener.
• Attach the bracket to the rail with 1/4"-20x5/8" hex
screws and lock washers.
• Attach the bracket to the opener by inserting a
5/16"-18x1/2" washered screw 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.
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
rail support bracket securely. Never operate
opener while you hand is near the opener
sprocket.
WARNING

• 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" 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 manual release handle to disconnect trolley
before adjusting chain.
Lock
Washer
To Tighten Outer Nut Inner Nut
Trolley
Chain
Base of rail
1/2"
To Tighten
Inner Nut
Outer Nut
Assembly Step 3
Tighten the Chain
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of severe injury or death to persons:
1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
2. Install only on a properly balanced and lubricated garage door. An improperly balanced door may
not reverse and could result in severe injury or death. Repairs to cables, spring assemblies and
other hardware must be made by a professional service person before installing opener.
3. Disable all locks and remove all ropes connected to the garage door before installing the opener.
Ropes connected to a garage door can cause entanglement and death.
4. If possible, install door opener 7 feet or more above floor with the manual release handle
mounted 6 feet above the floor.
5. Do not connect the opener to power source until instructed to do so.
6. Locate the Door Control within sight of the door at a minimum height of 5 feet where small
children cannot reach and away from all moving parts of the door.
7. Install the User Safety Instruction Label on the wall adjacent to the control button and the
Maintenance Instruction Label in a prominent location on the inside of the garage door.
8. Upon completion of the installation, the door must reverse when it comes in contact with a
one-inch high object or a 2x4 laid flat on the floor.
9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or
loose clothing can be caught in the mechanism of the garage door or the opener.
7
You have now finished assembling your garage door opener. Please read the following
warnings before proceeding to the installation section:
WARNING
WARNING

• Open your door to the highest
point 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.
Header
Wall
Ceiling
Track
Highest Point
of Travel
Door
2"
8
Proceed to Step 2, page 9.
Vertical
Guideline
Finished
Ceiling
Vertical
Guideline
Header
Wall 2x4 Structural
Supports
• Close the door and mark the inside
vertical centerline of the garage door.
• Extend the line onto the header wall
above the door.
Remember, you can fasten the
header bracket within 2 feet to 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 (refer to page 9) when
clearance is minimal. (It may be
mounted on the wall upside down if
necessary, to gain approximately
1/2".)
If you need to install the header bracket
on a 2x4 (on wall or ceiling), use lag
screws (not supplied) to securely fasten
the 2x4 to structural supports as shown
here.
Installation Section: Pages 8 – 20
Installation Step 1
Determine Header Bracket Location
If the header bracket is not rigidly fastened to
a structural support on the header wall or
ceiling, the safety reverse system may not
work properly (see page 23). The door might
not reverse when required, and could cause
serious injury or death.
The garage door springs, cables, pulleys,
brackets and their hardware are under extreme
tension. Do not attempt to loosen, move or
adjust them yourself. Serious personal injury
or death could result. Call for professional
garage door service.
WARNING

Lag Screws
5/16"-9x1-5/8"
Highest
Point of Travel
(of Garage Door)
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
9
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.
Fasten the Header Bracket to the Wall
• Center the bracket on the vertical guideline with
the bottom edge of the bracket on the horizontal
line as shown (with the arrow pointing toward the
ceiling).
• Mark either 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.
Fasten the Header Bracket to the Ceiling
Installation Step 2
Install the Header Bracket
Lag Screw
5/16"-9x1-5/8"
Hardware Shown Actual Size
UP
Lag Screws
5/16"-9x1-5/8"
Garage
Door
Vertical
Center Line
Header
Wall
Finished
Ceiling
Header
Bracket
6" Maximum
Vertical
Center Line
Door
Spring
UP
CEILING MOUNT ONLY
Ceiling Mounting Holes
The nail hole is for positioning only.
You must use lag screws to mount
the header bracket.
• Extend the vertical guideline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more
than 6" 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 holes designated for ceiling mount only. Drill
3/16" pilot holes and fasten the bracket securely to
a structural support with the hardware provided.

Header
Bracket
Chain
Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
Clevis Pin
5/16"x2-3/4 "
Ring Fastener
Header Bracket
Chain
Pulley
Bracket
Rail
Rail
• Position the opener on the garage floor below the
header bracket. Use packing material as a
protective base.
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.
10
Installation Step 3
Attach the Rail to the Header Bracket
Clevis Pin
5/16" x 2-3/4" Ring Fastener
Hardware Shown Actual Size

Installation Step 4
Position the Opener
To prevent damage to steel, aluminum,
fiberglass or glass panel doors, do not rest the
opener on the door without using a 2x4.
11
CAUTION
Trolley
Trolley
Release Arm
• If the top panel hits the trolley when you raise
the door, pull down on the trolley release arm
to disconnect the inner and outer sections. The
trolley can remain disconnected until Step 12
is completed.
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.
Rail 2x4
Door
Stepladder

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 in ceiling before
installing the opener. The bracket and fastening
hardware are not supplied.
• Measure the distance from each side of the opener
to the structural support.
• Cut both pieces of the hanging bracket to required
lengths.
• Drill 3/16" pilot holes in the structural supports.
• Attach one end of each bracket to a support with
5/16"x1-7/8" lag screws.
• Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex screws, lock washers and nuts.
• Check to make sure the rail is centered over the
door (or in line with the header bracket if the
bracket is not centered above the door).
• Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
Grease the top and
underside of the rail surface
where the trolley slides. A
tube of grease is supplied.
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
Measure
Distance
Lag Screws
5/16"x1-7/8"
Structural
Supports
Lag Screws
5/16"x1-7/8"
Bracket
(Not Supplied)
FINISHED CEILING
Hidden
Support
(Not Supplied)
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
5/16"-18x7/8" Screw
5/16" Lock Washer
5/16"-18 Nut
12
The opener could fall and injure someone if it
is not properly secured. Fasten the opener
securely to structural supports of the garage.
Lag Screw
5/16"-18x1-7/8"
Hex Screw
5/16"-18x7/8" Nut 5/16"-18 Lock Washer 5/16"
Hardware Shown Actual Size
WARNING
Figure 1
Figure 2
RAIL GREASE
NO. 83A4

Installation Step 6
Install the Door Control
13
Children operating or playing with a garage
door opener can injure themselves or others.
The garage door could close and cause serious
injury or death.
Install the Door Control (or any additional push
buttons) out of the reach of children and away
from all moving parts of the door and door
hardware, but where the garage door is visible.
Do not allow children to operate the push
button(s) or the remote control transmitter(s).
A moving garage door could injure someone
under it. Activate the opener only when the
door is properly adjusted, you can see it clearly,
and there are no obstructions to door travel.
• Strip 1/4" of insulation from one end of the bell
wire; connect the wire to the two screw terminals
on the back of the Door Control: white to 2 and
white/red to 1.
• Locate the door control within sight of the door
at a minimum height of 5 feet where small
children cannot reach, and away from all
moving parts of the door and door hardware.
Fasten the Door Control Button securely with
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 the opener. Use insulated staples to secure the
wire in several places. Be careful not to pierce the
wire with a staple, thereby resulting in a short.
• Receiver terminal screws and the antenna are
located on the back panel of the opener. Position
the antenna wire as shown.
• Then connect the bell wire by color to the opener
terminal screws: white to 2 and white/red to 1.
• Remember to affix the User Safety Instruction
label to the wall near the door control, and the
Maintenance Instruction Label in a prominent
location on the inside of the garage door.
If the label adhesive will not adhere to your garage
wall surface (or becomes loose with time), use tacks
to secure the label alongside the door control.
Page 25 explains how to operate the opener using
the door control.
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 beginnning on page 16.
Outside Keylock Accessory Connections
To opener terminal screws:
White to 2 and white//red to 1
WARNING
2-Conductor
Bell Wire
Door Control
Push Bar
LIGHT
LOCK
Multi-Function
Door Control Panel
Light Button
Lock Button
-2
-1
Multi-Function
Door Control Panel
Terminal Screws 2-Conductor
Bell Wire
KG KG
1
3
9
75
1
3
9
75
23
1
Opener
Terminal
Screws
Antenna
Back Panel
of Opener
RED-1 WHT-2 BLK-3
Dry Wall Anchors Insulated
Staples
6ABx1-1/2" Screw
Lighted Door Control Button
Hardware Shown Actual Size

Opener
75 Watt Max.
Light Bulb
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.
Installation Step 7
Install the Light
Installation Step 8
Attach the Manual Release
Rope and Handle
Do not use the red handle to pull the door
open or closed. The rope knot could become
untied and you could fall. Use the manual
release only to disengage the trolley and, if
possible, only when the door is closed.
Garage doors are heavy. If the door is open
when the handle is pulled, the door could
close inadvertently if it is not properly
balanced. Serious injury may result to persons
under the door. Make sure the doorway is clear
of persons and obstructions before pulling
handle when door is open.
• 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.
The knot should be 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.
If it is necessary to cut the rope, heat seal the cut
end with a match or lighter to prevent unraveling.
Trolley
NOTICE
Overhand
Knot
Manual
Release Handle
Rope
Overhand
Knot
Trolley
Release Arm
14
WARNING

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.
Installation Step 9
Electrical Requirements
Ground Tab
Green
Ground
Screw
Ground Wire
Black
Wire
Permanent wiring
connection
White Wire
Black
Wire
To make a permanent connection through the 7/8"
diameter hole in the top of the opener (according
to local code):
• Remove the opener 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.
15
To prevent electrocution or fire, installation
and wiring must be in compliance with local
electrical and building codes.
Do NOT use an extension cord, 2-wire adapter,
or change the plug in any way to make it fit
your outlet.
Right Wrong
To avoid installation difficulties,
do not run the opener at this time.
To avoid installation difficulties,
do not run the opener at this time.
If permanent wiring is required by your local code, refer to the following procedure:
WARNING
WARNING
To prevent electrocution, remove power from
the garage door opener and from the circuit
you plan to use for the permanent
connection.

Without a properly working safety reversing
sensor, persons (particularly children) could
be injured or killed by a closing garage door.
Read and follow all instructions.
To protect small children, install the safety
reversing sensor so that the beam will be no
higher than 4-6" above the garage floor.
Disconnect power to the garage door opener
before installing the safety reversing sensor.
Invisible Light Beam
Protection Area
Sensor Beam
4-6" max.
above floor
Sensor Beam
4-6" max.
above floor
Facing the door from inside the garage
16
The Protector System®
Information you'll need before you begin the installation of the safety reversing sensor.
The safety reversing sensor must be connected
and aligned correctly before the garage door
opener will move in the down direction. This is a
required safety device and cannot be disabled.
Be sure power to the opener is disconnected.
The sending eye transmits an invisible light beam to
the receiving eye. The units can be installed on
either side of the garage door as long as the sun
never shines directly into the receiving eye lens.
Look at the label on the connector end of each case
to identify the sensors.
The brackets must be connected and fastened so
that the sending and receiving eyes face each other
as shown.
If an obstruction breaks the light beam while the
garage door is closing, the door will stop and
reverse to full open position and the opener light will
flash for 5 seconds.
The brackets must be securely fastened to a solid
surface such as the studs on either side of the door,
or add a piece of wood at each location if installing
in masonry construction.
The invisible light beam path must be unobstructed.
No part of the garage door (or door tracks, springs,
hinges, rollers or other hardware) can interrupt the
beam while the door is closing. If it does, use a
piece of wood to build out each sensor mounting
location to the minimum depth required for light
beam clearance.
WARNING

1/4x1-1/2"
Lag Screw
#10-32x3/8"
Screw 1/4"-20
Lock Nut
#10x32
Lock Nut Staples 1/4"-20x1/2"
Carriage Bolts
Installation Step 10
Install the Safety Reversing Sensor
(Receiving and Sending Eyes)
Inside
Garage
Wall
"C" Shaped
Wrap
Mounting Bracket
with Square Holes
1/4-20x1/2"
Carriage Bolts
1/4 " Lock Nuts
Drill 3/8"
Holes
Garage
Door Track
Garage DOOR Track Installation
Mounting Bracket
With Square Holes
#10-32x3/8"
Screws
"C" Wrap
#10-32
Lock Nuts
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
Garage WALL Installation
Figures 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 16, or on the
garage door tracks themselves.
Figures 4 amd 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
1. Fasten the "C" wraps to the mounting brackets having
square holes, using the hardware shown in Figure 1.
Garage Wall Installation
2. Connect each assembly to a slotted bracket, using
the hardware shown in Figure 2. Note alignment of
brackets for left and right sides of the door.
3. Finger tighten the lock nuts.
4. Use bracket mounting holes as a template to locate
and drill (2) 3/16" diameter pilot holes on both sides
of the garage door, 4"-6" above the floor
but not
exceeding 6"
(see warning on page 16).
5. Attach bracket assemblies with 1/4"x1-1/2" lag screws
as shown in Figure 2.
6. Adjust right and left side bracket assemblies to the
same distance 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.
"C" Wrap
Inside
Garage
Wall
Mounting Bracket
with Square Holes
Garage
Floor
Mounting Bracket
with Slot
Alternate Wall Mount
Sensor
with wire
Indicator Light
Indicator Light
Inside
Garage
Wall
Alternate Floor Mount
Mounting Bracket
with Slot
Attach with
concrete anchors
(not provided)
Mounting Bracket
with Square Holes
"C" Wrap
Sensor with wire
Garage
Floor
17
Hardware Shown Actual Size
Figure 1
Figure 2
Figure 3
Figure 5
Figure 4

Invisible Light Beam
Protection Area
Sensor
Sensor
Connect Wire to
Opener Terminals
Bell Wire
Bell Wire Finished Ceiling
Sensor
Connections
Wall Control
Connections
(dotted line)
OPENER TERMINAL SCREWS
123
18
1/4-20 x 1-1/2"
Hex Bolt
"C" Wrap
Sensor
with Wire
Wing
Nut
Indicator
Light
1/4-20x1-1/2"
Hex Bolt Wing Nut
Hardware Shown Actual Size
Figure 6
Figure 7
• 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" 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. Green 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 is
off, dim, or flickering in the receiving eye (and the
invisible light beam path is not obstructed),
alignment is required.
• Loosen the sending eye wing nut and re-adjust,
aiming directly at the receiving eye. Lock in place.
• Loosen the receiving eye wing nut and adjust
sensor vertically and/or horizontally until it receives
the sender’s beam. When the green indicator light
glows steadily, tighten the wing nut.
Trouble Shooting
1. If the 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 under staples or at screw terminal
connections.
• Incorrect wiring between sensors and opener.
• An open wire (wire break).
2. If the 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.
3.If the 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 light will flash 10 times. (If bulb is not
installed, 10 clicks are audible.) See page 16.

Installation Step 11
Fasten Door Bracket & Plate To prevent damage to steel, aluminum,
fiberglass or glass panel doors, always
reinforce the inside of the door both vertically
and horizontally with an angle iron.
INSTALLATION STEP 11
Fasten the Door Bracket
A horizontal reinforcement brace should be long
enough to be secured to two or three vertical
supports. A vertical reinforcement brace should
cover the height of the top panel.
Figure 1 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.
NOTE: Many door reinforcement kits provide for
direct attachment of the clevis pin and door arm. In
this case you will not need the door bracket; proceed
to Step 12.
SECTIONAL DOORS
1.Center the door bracket on the previously marked
vertical centerline used for the header bracket
installation. Note correct UP placement, as
stamped inside the bracket.
2. Position the top edge of the bracket 2"-4" below
the top edge of the door, OR directly below any
structural support across the top of the door.
3.Mark, drill holes and install as follows, depending
on your door’s construction:
Metal or light weight doors using a vertical angle
iron brace 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:
• Use top and bottom or side to side door bracket
holes. Drill 5/16" holes through the door and secure
bracket with 5/16"x2" carriage bolt, lock washer and
nuts (not provided). (Figure 4)
NOTE: The 1/4"-14x5/8" self-
threading screws are not
intended for use on wood doors.
19
WARNING
CAUTION
WARNING
WARNING
AVERTISSEMENT
ATTENTION
AVERTISSEMENT
Vertical
Centerline
Door
Bracket
Location
Header
Bracket
HORIZONTAL AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC).
(NOT PROVIDED)
Door
Bracket
Vertical
Centerline
UP
Vertical
Reinforcement
Self-Threading
Screw
1/4"-14x5/8"
Door
Bracket
Nut
5/16"-18
Bolt
5/16"-18x2"
Lock Washer
5/16"
Vertical
Centerline
UP
Vertical
Reinforcement
(Not Provided)
UP
Vertical
Centerline
Self-Threading
Screw
1/4"-14x5/8"
UP
Inside Edge
of Door or
Reinforcement Board
Bolt
5/16"x2"
Vertical
Centerline
(Not Provided)
Figure 1
Figure 2A
Figure 2B
Figure 3
Figure 4
Self-Threading Screw
1/4"-14x5/8"
HARDWARE SHOWN
ACTUAL SIZE

Installation Step 12
Connect Door Arm to Trolley
Make sure garage door is fully closed. Pull the manual release handle to disconnect the outer trolley
from the inner trolley. Slide the outer trolley back (away from the door) about 2” as shown in Figures 1,
2 and 3.
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.
Ring
Fastener
Door
Bracket
Clevis Pin Curved
Door Arm
Straight
Door Arm
Clevis
Pin Lock
Washers
5/16"
Nuts
5/16"-18
Door Bracket
Screws
5/16"-18x7/8"
Manual
Release
Handle
Rope
Inner Trolley
Outer Trolley
Lock
Washers
5/16"
Nuts
5/16"-18
Screws
5/16"-18x7/8"
Cut This End
Figure 3:
• 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 21. Trolley will re-engage automatically when the opener is operated.
20
Figure 1:
• Fasten straight door arm section to outer trolley
with a clevis pin. Secure the connection with a ring
fastener.
• Fasten curved section to the door bracket in the
same way as shown.
Lockwasher 5/16"
Nut 5/16"-18 Ring Fastener
Hex Screw
5/16"-18x7/8" Clevis Pin
5/16" x1"
Hardware Shown Actual Size
Figure 1 Figure 2
Figure 3
Hole Alignment Alternative