Instructions / Assembly
Smart Garage Opener
Installation Manual
CRITICAL INFORMATION PLEASE
READ BEFORE ASSEMBLY AND
INSTALLATION
Belt Drive Garage
Door Opener
Models B4545 B6765
Go to chamberlain.com/belt-install to see installation videos.
l Fasten the manual near the garage door after installation.
l The door WILL NOT CLOSE unless the Protector System
®
is connected and properly
aligned.
l Periodic checks of the garage door opener are required to ensure safe operation.
l DO NOT INSTALL on one-piece door if using devices or features providing
unattended close. Unattended devices and features are to be used ONLY with
sectional doors.
UNATTENDED OPERATION
The Timer-to-Close (TTC) feature, the myQ
®
App, and myQ
®
Garage Door and Gate Monitor
are examples of unattended close and are to be used ONLY with sectional doors. Any device or
feature that allows the door to close without being in the line of sight of the door is considered
unattended close. The Timer-to-Close (TTC) feature, the myQ
®
App, and any other myQ
®
devices are to be used ONLY with sectional doors.
LEGEND
myQ
®
App Control
Pre-Installation
Assembly Installation
How to Install and Replace
Light Bulbs
Electrical and Wiring
Adjustments Refer to Installation Manual
Two people recommended to
complete step
SAFETY SYMBOL REVIEW 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.
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.
Mechanical
Electrical
WARNING: This product can expose you to chemicals including lead, which are known to the
State of California to cause cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
CHECK THE DOOR
To prevent possible SERIOUSINJURYor DEATH:
l 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.
l NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their
hardware, ALLof which are under EXTREME tension.
l Disable ALLlocks and remove ALLropes connected to garage door BEFORE installation and
operating garage door opener to avoid entanglement.
l DO NOT install on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.
To prevent damage to garage door and opener:
l ALWAYS disable locks BEFORE installing and operating the opener.
l ONLY operate garage door opener at 120V, 60Hz to avoid malfunction and damage.
Before you begin:
1. Disable locks and remove any ropes connected to the garage door.
2. Lift the door halfway up. Release the door. If balanced, it should stay in place, supported
entirely by its springs.
3. Raise and lower the door to check for binding or sticking. If your door binds, sticks, or is out of
balance, call a trained door systems technician.
4. Check the seal on the bottom of the door. Any gap between the floor and the bottom of the
door must not exceed 1/4" (6 mm). Otherwise, the safety reversal system may not work
properly.
5. The opener should be installed above the center of the door. If there is a torsion spring or
center bearing plate in the way of the header bracket, it may be installed within 4feet (1.2 m) to
the left or right of the door center.
myQ
®
APP CONTROL
Open and close your garage door from your smartphone. Get alerted any time your garage opens, closes or is left open. Set a schedule for your garage to close at a certain time. Connected smart garage
door openers also receive software updates to ensure the opener has the latestoperational features.
TEST WI-FI
®
SIGNAL
You will need a router with Wi-Fi and a smartphone or other mobile device. Make sure your mobile
device is connected to your Wi-Fi network.Hold your mobile device in the place where your garage
door opener will be installed and check the Wi-Fi signal strength.
HOW STRONG IS YOUR WI-FI SIGNAL?
Wi-Fi Signal is:
Strong- You’re all set!
Weak- Garage door opener MAY connect
to Wi-Fi. If not, try one of the options below.
No Signal- Try one of the following:
• Move router closer to garage door opener.
• Buy a Wi-Fi range extender.
l Strong - Continue to Check Door.
l Weak - If garage door opener does not connect,try options for no signal.
l No Signal - Move router or install a Wi-Fi range extender.
DOWNLOAD THE myQ
®
APP TO SET UP AN ACCOUNT AND
CONNECT
Open and close your door, get alerts and set schedules from anywhere. Connected smart garage
door openers also receive software updates to ensure the opener has the latestoperational
features.
1. Download the myQ
®
App.
2. Set up an account and connect.
When you have completed the installation in this quickstart, add your garage door opener in the
myQ
®
App.
For more information on connecting your garage door opener, visit support.chamberlaingroup.com.
PRE-INSTALLATION CHECKLIST
CHECK DOOR
Sectional Door
Lift the door halfway up. Release the door. If balanced, it should stay in place. Raise and lower the
door to check for binding or sticking. Is your door balanced and is it free from binding or sticking?
l Yes - Continue to Door Reinforcement.
l No - Contact a trained door systems technician.
DOOR REINFORCEMENT
Horizontal
Reinforcement
Vertical
Reinforcement
Horizontal
Reinforcement
Vertical
Reinforcement
Verify the door has adequate support. Horizontal and vertical reinforcements (not provided) are
needed for lightweight garage doors (fiberglass, aluminum, steel, doors with glass panel, etc.). 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.
Is the garage door reinforced?
l Yes - Continue to Door Height.
l No - Lightweight garage doors REQUIRE reinforcement. Contact the garage door
manufacturer or installing dealer for opener reinforcement instructions or reinforcement
kit.
DOOR HEIGHT
Rail Extension Kits (sold separately)
POWER CONNECTIONS
Greater than
7' (2.1 m)
Is door taller than 7' (2.1 m)?
l Yes - You will need a rail extension
kit.
l No - Continue to Power Connections
10' (3 m) Rail Extension – 8810CB
8' (2.4 m) Rail Extension – 8808CB
Grounded
Outlet
Un-grounded
Outlet
✘
✔
Do you have a grounded outlet?
l Yes - Continue to ASSEMBLY.
l No - Call an electrician. DO NOT use
an extension cord.
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, see the Installation Options in the Owner's
Manual.
TOOLS REQUIRED
6'-7' Step
Ladders
Wire Cutter/
Strippers
5/16"
9/16"
1/2"
7/16"
1/4"
1/4"
5/16"
3/16"
5/32"
Wood 2" x 4"
x2
100W max.
26W max.
OR
ITEMS THAT MAY BE NEEDED
Installation Mounting
Safety Sensor Extension
Extension Brackets –041A5281-1
Lag screws x4
Lag screws x12
Wood Blocks
Support Bracket (s)
Hardware x2 (each)
PACKAGE CONTENTS
J
x2
P
x2
A
B
K
R
C
E
x4
S
x2
D
G
H
O
N
L
I
Q
F
M
T
Model B6765
Model B4545 - Motion Detecting Control Panel
Models B6765 - Smart Control Panel
®
HARDWARE
AA
x1
KK
x3
II
x4
JJ
x1
LL
x4
MM
x6
OO
x2
PP
x1
NN
x6
RR
x2
SS
x2
QQ
x1
TT
x2
VV
x2
WW
x2
UU
x20
BB
x1
CC
x1
DD
x1
EE
x1
HH
x3
GG
x1
Spring Nut
Threaded Shaft
(packed with
sprocket cover [D])
FF
x1
Clip
Cap
Bar
ASSEMBLY
After completion of the following steps, unit should look like this.
To prevent INJURY from pinching, keep hands and fingers away from the joints while
assembling the rail.
NOTE: To avoid installation difficulties, DO NOT run the garage door opener until instructed to do so.
NOTE: The front rail has a cut out “window” at the door end. The rail tab MUST be on top of the rail
when assembled.
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in
the top of the opener.
1
3
4
1
2
UP
E
E
E
E
G
B
B
E
E
G
BB
AA
7/16"
1. Assemble the front rail (B) to center rail (E). Assemble three remaining center rails to railing assembly.It may require some effort (such as rubber mallet) to snap rails into place. 2. Insert a screwdriver into
the hole on second to lastcenter rail (E). This will provide a temporary stop for the trolley (G). 3. Slide the trolley (G) onto the last center rail (E). 4. Insert bolt (AA) into the hole on the last center rail. Using a
7/16" wrench or socket, secure with lock nut (BB).
3
1
2
2
H
C
C
E
E
1/2"
1. Slide "U" bracket (C) into the last center rail (E). "U" bracket will snap into place. 2. Remove the two bolts from the opener (H). Use the opener carton to hold the opener in place. 3. Using a 1/2" wrench or
socket, attach "U" bracket (C) with previously removed bolts.
F
B
A
1
2
3
1. Insert belt (F) through front rail (B) then 2. insert idler pulley (A).
4
3
2
✔ ✘
1
EE
9/16"
DDDD
CC
1. Using a 9/16" wrench or socket, secure idler pulley (A) with bolt (CC), lock washer (DD), and nut
(EE). 2. Insert a flathead screwdriver in the reail tab. 3. Lift the rail tab 90°.
2
5
1
H
F
1. Attach trolley connector on end of belt (F) to the trolley (G). 2. Feed the other end of the belt
around the sprocket on opener (H), making sure the sprocket teeth engage the belt.
2
1
6
3
Flat
side out
GG
GG
1. Remove spring nut from threaded shaft (GG). 2. Insert threaded shaft through the hole in the
trolley (G) and 3. hand tighten spring nut onto threaded shaft only enough to hold the shaft in place.
1
3
1
7
2
4
GG
FF
F
1. Connect the belt (F) to the threaded shaft (GG) with master link (FF) bar. 2. Secure bar with with
master link cap and clip. TIP: Use needle nose pliers to secure the clip onto the bar. 3.Hand tighten
spring nut NOTE: DO NOT use tools to tighten spring nut. 4. Remove screwdriver.
1
2
8
3
GG
Nut Ring SlotNut Ring Slot
7/16"
1. Insert screwdriver into the nut ring slot on spring nut (GG) and brace it firmly against trolley (G).
2. Using a 7/16" wrench, 3. turn spring nut counter-clockwise until spring releases and snaps the
nut ring against the tolley. This will set optimal belt tension.
Before
After
1-1/4"
(3.18 cm)
1"
(2.5 cm)
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
l ALWAYS keep hand clear of sprocket while operating opener.
l Securely attach sprocket cover BEFORE operating.
9
H
D
HH
1/4"
Using a screwdriver or 1/4" wrench or socket, attach sprocket cover (D) to opener (H) using three
screws (HH).
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. Install garage door opener ONLY on properly balanced and lubricated garage door. An
improperly balanced door may NOT reverse when required and could result in SEVERE
INJURY or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware MUST be made by a trained
door systems technician BEFORE installing opener.
4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing
opener to avoid entanglement.
5. Where possible, install the door opener 7 feet (2.13 m) or more above the floor.
6. Mount the emergency release within reach, but at least 6 feet (1.83 m) above the floor and
avoiding contact with vehicles to avoid accidental release.
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:
l within sight of the garage door.
l out of reach of small children at a minimum height of 5feet (1.5m) above floors,
landings, steps or any other adjacent walking surface.
l away from ALL moving parts of the door.
10. Place entrapment warning label on wall next to garage door control in a prominent location.
11. Place emergency 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" (3.8cm) high object (or a 2x4 laid flat) on the floor.
13. DO NOT install on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.
14. SAVE THESE INSTRUCTIONS.
After completion of the following, steps unit should look like this.
To prevent possible SERIOUS INJURY or DEATH:
l 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.
l Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
l NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their
hardware, ALL of which are under EXTREME tension.
l 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.
If you are replacing a LiftMaster
®
, Chamberlain
®
, or Craftsman
®
garage door opener you may use the
existing header bracket. Verify the bracket is in the correct location:
1. The bracket is securely fastened to a structural support.
2. The bracket is centered to the door.
3. The bottom edge of the bracket is 2" above the highestpoint of door travel.
To install the provided header bracket, see Installation step 1 in the User’s Guide.
1
Header Wall
Track
Highest Point
of Travel
Sectional Door
with Curved Track
I
I
2" (5 cm) Above
Highest Point of Travel
2" (5 cm) Above
Highest Point of Travel
2" (5 cm) Above
Highest Point of Travel
2" (5 cm) Above
Highest Point of Travel
Center of Garage Door
2
H
B
KK
JJ
I
Place opener (H) on a protective base (i.e. cardboard, stool, etc.) and lift front rail (B) up towards
header bracket. Attach front rail to header bracket (I) with 1-1/2" clevis pin (JJ). Secure with ring
fastener (KK).
3
Lift garage door opener onto a ladder.