Chamberlain 2595C 3/4 HP User manual

The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
GARAGE DOOR OPENER
Model 2595C 3/4 HP
For Residential Use
Install on Sectional Doors ONLY
THIS OPERATOR IS INTENDED FOR USE ONLY WITH I-BEAM RAILS.
®
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 under the light lens on the left side
panel of your opener.
®

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 spreader ...........................................6
Attach chassis 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 ...................................................10
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 23-27
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..............................25
Having a problem?...............................................25-26
Programming 27-28
To add or reprogram a hand-held remote control .....27
To erase all codes .....................................................27
3-Button remotes.......................................................27
To add, reprogram or change
a Keyless Entry PIN ..................................................28
Repair Parts 29-30
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
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING

3
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.
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.
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:
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.
Tools needed
During assembly, installation and adjustment of the
opener, instructions will call for hand tools as
illustrated below.
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING
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
One-Piece Door

4
Safety Reversing Sensor
Support bracket &
fastening hardware
is required.
See page 11.
— — — — — — — —
Header Wall
FINISHED CEILING
Torsion
Spring
Extension
Spring
OR
Safety Reversing
Sensor
Gap between floor and
bottom of door must
not exceed 1/4" (6 mm)
Access
Door
Wall-
mounted
Door
Control
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 18 for details.
Motor Unit
Slack in chain tension
is normal when
garage door is closed.
Vertical
Centerline of
Garage Door
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.
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.
WARNING
CAUTION WARNING
WARNING

5
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
LOCKLIGHT
Chassis
Support
Bracket
Chain Spreader
Extension Bracket (2)
Rail
Chain Pulley Bracket
Chain
SECURITY✚®
3-Button
Remote Control
Straight Door
Arm Section
Curved Door
Arm Section
Safety Labels
and
Literature
2 Conductor Bell Wire
White & White/Red
Remote Control
Transmitter
Visor Clip
Motion Detecting
Door Control Panel
Trolley
UP
CEILINGMOUNTONLY
Header Bracket
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conduction White &
White/Black Bell Wire attached
Door Bracket
Safety Sensor
Bracket (2)
Motor Unit With Light Lenses
INSTALLATION HARDWARE
Hex Bolt 5/16"-18x7/8" (4)
Lag Screw 5/16"-9x1-5/8" (2)
Lag Screw 5/16"-18x1-7/8" (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1-1/4" (1)
Clevis Pin 5/16"x1" (1)
Nut 5/16"-18 (4)
Lock Washer 5/16" (4)
Screw 6ABx1-1/4" (2)
Screw 6-32x1" (2)
Self-Threading Screw 1/4"-14x5/8" (2)
Washered Bolt 5/16"-18x1/2" (2)
Hex Bolt 1/4"-20x5/8" (4)
Hex Screws 8-32x1" (2)
Screw #8-32x3/8"
Insulated Staples (30)
Ring Fastener (3)
Drywall Anchors (2)
Rail Grease
Carriage Bolt 1/4"-20x1/2" (2)
Wing Nut 1/4"-20 (2)
Lock Nut 1/4"-20
Lag Screw 1/4x1-1/2" (4)
Rope
Handle

Washered Bolt
5/16"-18x1/2"
Lock Nut
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.
• Remove the bolt and lock nut from the top of the
motor unit.
• Place rail onto the bolt mounted on the motor unit
and align the back hole with the hole in the top of
the unit.
• Fasten rail with the washered bolt and lock nut
previously removed. Tighten securely. (Figure 1)
Remember to use only these bolts/fasteners!
Any other bolts/fasteners will cause serious
damage to the opener.
Hex Screws
8-32x1"
Chain
Spreader
Motor Unit
Sprocket
Washers
ASSEMBLY STEP 3
Attach the Chassis Support Bracket
• Position the rail support bracket on the unit.
• Attach the bracket to the rail with 1/4"-20x5/8" hex
bolts 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 (Figure 4).
Proceed to Assembly Step 4.
Hex Bolts 1/4"-20x5/8"
w/Lock Washers
Chassis
Support
Bracket
Washered Bolt
5/16"-18x1/2"
Washered Bolt
5/16"-18x1/2"
Screw
#8-32x3/8"
Opener
Back Flange
Opener
Side Flange
6-Tooth
Sprocket
Chain Spreader
Motor Unit
Mounting Plate
Figure 1
Figure 2
Figure 4
8-Tooth
Sprocket
Chain Spreader
Motor Unit
Mounting Plate
Figure 3
6
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.
WARNING
CAUTION WARNING
WARNING
To avoid SERIOUS damage to garage door opener,
use ONLY those bolts/fasteners mounted in the top of
the opener.
WARNING
CAUTION
WARNING
WARNING
ASSEMBLY STEP 2
Attach the Chain Spreader
• Attach chain spreader to the motor unit with two
screws (Figure 2).
• Guide the chain around the selected groove in the
chain spreader, to engage either the 8-tooth
sprocket or the 6-tooth sprocket (Figure 3).
NOTE: The 6-tooth sprocket is for use with
Carriage House Doors and the 8-tooth sprocket is
for use with Regular Doors.

7
Lock
Washer
To Tighten Outer Nut
Inner Nut
Trolley
Chain
Base of rail
1/2” (13 mm)
To Tighten
Inner Nut
Outer Nut
INSTALLATION
ASSEMBLY STEP 4
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" (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.
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.
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING
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.

8
INSTALLATION STEP 1
Determine the Header Bracket
Location
SECTIONAL DOOR ONLY
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
(1.22 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 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.
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.
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.
Unfinished
Ceiling
2x4
OPTIONAL
CEILING
MOUNT
FOR
HEADER
BRACKET
Header Wall
2x4 Structural
Supports
Vertical Centerline
of Garage Door
Level
(optional)
WARNING
CAUTION WARNING
WARNING
Header Wall
Ceiling
Track
Highest Point
of Travel
Door
2" (5 cm)
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"-9x1-5/8"
HARDWARE SHOWN ACTUAL SIZE
Lag Screws
5/16"x9x1-5/8"
Highest Point of
Garage Door Travel
Vertical
Centerline of
Garage Door
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
CEILINGMOUNT ONLY
Door Spring
Header
Bracket
2x4
Structural
Support
Vertical
Centerline of
Garage Door
Horizontal
Line
UP
CEILING MOUNT ONLY
Ceiling Mounting Holes
The nail hole is for
positioning only.
You must use lag screws
to mount the header bracket.
UP
Lag Screws
5/16"-9x1-5/8"
Garage Door
Vertical
Centerline
of Garage Door
Header Wall
– Finished Ceiling –
Header
Bracket
6" (15 cm)
Maximum
Vertical
Centerline
of Garage Door
Door
Spring
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.

To prevent damage to garage door, rest garage door
opener rail on 2x4 placed on top section of door.
WARNING
CAUTION
WARNING
WARNING
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.
• 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.
10
Trolley
Release Arm
ENGAGED RELEASED
Clevis Pin 5/16"x2-3/4"
Ring Fastener
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 rail bracket against the header
bracket.
• Align the bracket holes and join with a clevis pin
as shown.
• Insert a ring fastener to secure.
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
HARDWARE SHOWN
ACTUAL SIZE
Rail
Door 2x4 is used to determine
the correct mounting height
from ceiling.

11
INSTALLATION STEP 5
Hang the Opener
Three representative installations are shown. Yours
may be different. Hanging brackets should be angled
(Figure 1) to provide rigid support. On finished
ceilings (Figure 2 and Figure 3), attach a sturdy
metal bracket to structural supports before installing
the opener. This bracket and fastening hardware are
not provided.
1. Measure the distance from each side of the motor
unit to the structural support.
2. Cut both pieces of the hanging bracket to required
lengths.
3. Drill 3/16" pilot holes in the structural supports.
4. Attach one end of each bracket to a support with
5/16"-18x1-7/8" lag screws.
5. Fasten the opener to the hanging brackets with
5/16"-18x7/8" hex bolts, lock washers and nuts.
6. 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).
7. Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
8. Grease the top and underside of the rail surface
where the trolley slides with rail grease.
NOTE: DO NOT connect power to opener at this
time.
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.
WARNING
CAUTION WARNING
WARNING
Measure
Distance
Lag Screws
5/16"-18x1-7/8"
Structural
Supports
Bracket
(Not Provided)
Lag Screws
5/16"-18x1-7/8"
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
FINISHED CEILING
Hidden
Support
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
Lag Screws
5/16"-18x1-7/8"
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
FINISHED CEILING
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Lock Washer 5/16"
Nut 5/16"-18
Lock Washer 5/16"
Nut 5/16"-18
Lock Washer 5/16"
Nut 5/16"-18
Bolt 5/16"-18x7/8"
Bolt 5/16"-18x7/8"
Bolt 5/16"-18x7/8"
Figure 1
Figure 2
Figure 3
Lag Screw5/16"-18x1-7/8"
Hex Bolt
5/16"-18x7/8"Nut 5/16"-18Lock Washer 5/16"
HARDWARE SHOWN ACTUAL SIZE

KG
1
3
9
7
5
KG
1
3
9
7
5
12
INSTALLATION STEP 6
Install the Door Control
Locate 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 moving parts of the door
and door hardware. The installation surface must be
smooth and flat. If installing into drywall (Figure 1),
drill 5/32" holes and use anchors provided. For
pre-wired installations (as in new home construction),
it may be mounted to a single gang box (Figure 2).
NOTE: After installation, a green indicator light behind
the cover will indicate proper connection. If not lit, the
Lock and Light features will not function (reverse
wires to correct).
1. Strip 7/16" (11 mm) of insulation from one end of
bell wire and connect to the two screw terminals on
back of door control by color: white wire to 2 and
white/red wire to the 1 (Figure 3).
2. Remove white cover by gently prying at slot in top
of the cover with a small flat head screwdriver.
Fasten with 6ABx1-1/4"self-tapping screws (drywall
installation) or 6-32x1" machine screws (into gang
box) as follows:
• Drill and install bottom screw, allowing 1/8" (3 mm)
to protrude above wall surface.
• Position bottom of door control on screw head and
slide down to secure. Adjust screw for snug fit.
• Install top screw with care to avoid cracking plastic
housing. Do not overtighten.
• Insert top tabs and snap on cover.
NOTE: The push bar may stick if the door control is
not mounted on a smooth surface. If a click is not
heard when pressing the push bar, loosen the two
mounting screws or relocate the door control to a
smoother surface.
3. (Standard installation only) Run bell wire up wall
and across ceiling to motor unit. Use insulated
staples to secure wire in several places. Do not
pierce wire with a staple, creating a short or open
circuit.
4. Strip 7/16" (11 mm) of insulation from end of bell
wire. Connect bell wire to the quick-connect
terminals as follows: white to white and white/red to
red.
NOTE: When connecting multiple door controls to the
opener, twist same color wires together. Insert wires
into quick-connect holes: white to white and red/white
to red.
5. Use tacks or staples to permanently attach
entrapment warning label to wall near door control,
and manual release/safety reverse test label in a
prominent location on inside of 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 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.
WARNING
CAUTION
WARNING
WARNING
To release wire, push in tab
with screwdriver tip
Door Control
Connections
7/16" (11 mm)
Strip wire 7/16" (11 mm)
Red Grey
White
Drywall Anchors
Insulated
Staples
Screw6ABx1-1/4"
(std installation)
Screw6-32x1"
(pre-wired installation)
HARDWARE SHOWN ACTUAL SIZE
Figure 2
LOCKLIGHT
To Replace
Insert Top
Tabs First
STANDARD WALL MOUNT
Detector
Switch
Push Bar Cover
ON
OFF
Figure 1
24 Volt Bell Wire
PRE-WIRED INSTALLATION
LOCKLIGHT
To Replace
Insert Top
Tabs First
Detector
Switch
Push Bar Cover ON
OFF
1
RED
2
WHITE
Door
Control
Terminal
Screws
24 Volt
Bell Wire
(BACK VIEW)
Bottom
Mounting
Hole
Top
Mounting
Hole
Figure 3

Trolley
NOTICE
Overhand
Knot
Emergency
Release Handle
Rope
Trolley
Release Arm
13
INSTALLATION STEP 7
Install the Light
• Press the release tabs on both sides of lens.
Gently rotate lens back and downward until the
lens hinge is in the fully open position. Do not
remove the lens.
• Install up to a 100 watt maximum light bulb in each
socket. The light will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the lights will turn OFF.
• Reverse the procedure to close the lens.
• If the bulbs burn out prematurely due to vibration,
replace with a Garage Door Opener bulb.
NOTE: Use only standard light bulbs. The use of
short neck or speciality light bulbs may overheat the
endpanel or light socket.
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" (2.5 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.
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.
WARNING
CAUTION
WARNING
WARNING
Lens
Hinge
100 Watt (Max)
Standard Light Bulb
Release Tab
100 Watt (Max)
Standard Light Bulb
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.
WARNING
CAUTION WARNING
WARNING

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
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.
Ground Tab
Green
Ground Screw
Ground Wire
Black Wire
PERMANENT WIRING
CONNECTION
White Wire
Black
Wire
WARNING
CAUTION WARNING
WARNING

15
Invisible Light Beam
Protection Area
Sensor Beam
6" (15 cm) max.
above floor
Sensor Beam
6" (15 cm) max.
above floor
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 (with an amber indicator
light) transmits an invisible light beam to the
receiving eye (with a green indicator light). 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.
The mounting brackets are designed to clip onto the
track of sectional garage doors without additional
hardware.
If it is necessary to mount the units on the wall, the
brackets must be securely fastened to a solid surface
such as the wall framing. Extension brackets (see
accessories) are available if needed. 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.
WARNING
CAUTION WARNING
WARNING
Facing the door from inside the garage

16
FLOOR MOUNT (RIGHT SIDE)
WALL MOUNT (RIGHT SIDE)
DOOR TRACK MOUNT (RIGHT SIDE)
Indicator
light
Lens
Lip
Sensor
Bracket
Door
Track
Sensor
Bracket
Extension
Bracket
Lens
Indicator
light
Lag Screw
1/4x1-1/2"
Inside
Garage
Wall
Indicator
light
Sensor
Bracket
Lens
Extension
Bracket
Inside
Garage
Wall
Lock Nut
1/4"-20
Lock Nut
1/4"-20
Hex Bolt
1/4"-20x5/8"
Hex Bolt
1/4"-20x5/8"
Lag Screw
1/4x1-1/2"
Figure 3
Figure 1
Figure 2
INSTALLING THE BRACKETS
Be sure power to the opener is disconnected.
Install and align the brackets so the sensors will face
each other across the garage door, with the beam no
higher than 6" (15 cm) above the floor. They may be
installed in one of three ways, as follows.
Garage door track installation (preferred):
• Slip the curved arms over the rounded edge of
each door track, with the curved arms facing the
door. Snap into place against the side of the track.
It should lie flush, with the lip hugging the back
edge of the track, as shown in Figure 1.
If your door track will not support the bracket
securely, wall installation is recommended.
Wall installation:
• Place the bracket against the wall with curved
arms facing the door. Be sure there is enough
clearance for the sensor beam to be unobstructed.
• If additional depth is needed, an extension bracket
or wood blocks can be used.
• Use bracket mounting holes as a template to
locate and drill (2) 3/16" diameter pilot holes on
the wall at each side of the door, no higher than 6"
(15 cm) above the floor.
• Attach brackets to wall with lag screws.
• If using extension brackets or wood blocks, adjust
right and left assemblies to the same distance out
from the mounting surface. Make sure all door
hardware obstructions are cleared.
Floor installation:
• Use wood blocks or extension brackets to elevate
sensor brackets so the lenses will be no higher
than 6" (15 cm) above the floor.
• Carefully measure and place right and left
assemblies at the same distance out from the wall.
Be sure all door hardware obstructions are
cleared.
• Fasten to the floor with concrete anchors as
shown.
Lag Screw
1/4x1-1/2" (4)
Lock Nut
1/4"-20 (2)
Hex Bolt
1/4"-20x5/8" (2)
Wing Nut
1/4"-20
Staples
Carriage Bolt
1/4"-20x1/2"
HARDWARE SHOWN ACTUAL SIZE

Invisible Light Beam
Protection Area
Sensor
Sensor
Connect Wire to
Opener Quick-Connect Terminals
Bell Wire
Bell Wire Finished
Ceiling
Quick-Connect Terminals
3. Insert into
appropriate terminals
1. Strip wire 7/16"
(11 mm)
2. Twist like colored
wires together
7/16"
(11mm)
Red Grey
White
17
Carriage Bolt
1/4"-20x1/2" Lens
Wing Nut
Figure 4
MOUNTING AND WIRING THE SAFETY SENSORS
• Slide a 1/4"-20x1/2" carriage bolt head into the slot
on each sensor. Use wing nuts to fasten sensors to
brackets, with lenses pointing toward each other
across the door. Be sure the lens is not obstructed
by a bracket extension (Figure 4).
• Finger tighten the wing nuts.
•Run the wires from both sensors to the opener. Use
insulated staples to secure wire to wall and ceiling.
• Strip 7/16" (11 mm) of insulation from each set of
wires. Separate white and white/black wires
sufficiently to connect to the opener quick-connect
terminals. Twist like colored wires together. Insert
wires into quick-connect holes: white to white and
white/black to grey (Figure 5).
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 amber indicator light will glow
regardless of alignment or obstruction. If the green
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
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 at staples, or at opener connections.
• Incorrect wiring between sensors and opener.
• A broken wire.
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 lights will blink 10 times. (If bulbs are not
installed, 10 clicks can be heard.) See page 15 .
Figure 5

18
Fiberglass, aluminum or lightweight steel garage doors
WILL REQUIRE reinforcement BEFORE installation of
door bracket. Contact your door manufacturer for
reinforcement kit.
WARNING
CAUTION
WARNING
WARNING
INSTALLATION STEP 11
Fasten the Door Bracket
Follow instructions which apply to your door type as
illustrated below or on the following page.
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"
(5-10 cm) 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 bolts, lock
washers and nuts (not provided). (Figure 4)
NOTE: The 1/4"-14x5/8"
self-threading screws are
not intended for use on
wood doors.
Vertical
Centerline
of Garage
Door
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
of Garage Door
UP
Vertical
Reinforcement
Self-Threading
Screw
1/4"-14x5/8"
Self-Threading
Screw
1/4"-14x5/8"
Door
Bracket
Nut
5/16"-18
Bolt
5/16"-18x2"
Lock Washer
5/16"
UP
Vertical
Reinforcement
(Not Provided)
Vertical
Centerline
of Garage Door
UP
Self-Threading
Screw
1/4"-14x5/8"
Vertical
Centerline
of Garage Door
UP
Inside Edge
of Door or
Reinforcement Board
Bolt
5/16"x2"
(Not Provided)
Vertical
Centerline
of Garage
Door
Figure 1
Figure 2A
Figure 3
Figure 4
Figure 2B
HARDWARE
SHOWN
ACTUAL SIZE

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"x1-1/4" 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
Lock Washer 5/16"
Nut 5/16"-18Ring Fastener
Hex Bolt
5/16"-18x7/8"
Clevis Pin
5/16"x1" (Trolley)
Clevis Pin
5/16"x1-1/4" (Door Bracket)
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 3" (7.5 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 3" (7.5 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 3"
(7.5 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.
ADJUSTMENT LABEL
Left Side Panel
Cover
Protection
Bolt
2-4"
(5-10 cm)
Limit Adjustment Screws
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.
WARNING
CAUTION WARNING
WARNING
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.
WARNING
CAUTION
WARNING
WARNING