Chamberlain HD920EV User manual

Model Number:
Serial Number:
Date of Purchase:
CONTENTS
Preparation . . . . . . . . . . . . . . . .2-5
Assembly . . . . . . . . . . . . . . . . 6-10
Installation . . . . . . . . . . . . . . 11-20
Install the Door Control. . . . . . 21-23
Install the Protector System®. . 23-26
Power. . . . . . . . . . . . . . . . . . 27-28
Adjustments . . . . . . . . . . . . . 29-31
Battery Backup. . . . . . . . . . . . 32-33
Operation . . . . . . . . . . . . . . . . . 34
Features . . . . . . . . . . . . . . . . . . 35
Door Control . . . . . . . . . . . . . 36-38
Remote Control . . . . . . . . . . . 39-40
To Erase the Memory . . . . . . . . . 40
To Open the Door Manually . . . . . 41
Maintenance . . . . . . . . . . . . . . . 42
Troubleshooting. . . . . . . . . . . 43-44
Repair Parts . . . . . . . . . . . . . 45-46
Accessories. . . . . . . . . . . . . . . . 47
Warranty. . . . . . . . . . . . . . . . . . 48
Belt Drive Battery Backup Garage Door Opener
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
■ 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 garage door opener are required to ensure safe operation.
■The model number label is located on the left side panel of your garage door opener.
■This garage door opener is compatible with MyQ™and Security✚2.0™ accessories.
■DO NOT enable the Timer-to-Close feature if you are installing the garage door opener
on a one-piece door. The Timer-to-Close is to be used ONLY with sectional doors.
www.chamberlain.com
.
Write down the following information for
future reference:
Models
HD920EV • 349544 • WD962KEV • WD962KPEV
FOR RESIDENTIAL USE ONLY

2
Safety Symbol and Signal
Word Review
Thisgarage door opener hasbeen designed and
tested to offer safe service provided it isinstalled,
operated,maintained and tested in strict
accordance with the instructions and warnings
contained in this manual.
When you see these Safety Symbolsand Signal
Words on the following pages, they will alert you
to the possibilityof serious injury or death if you
do notcomply with the warnings that accompany
them. The hazard maycome from something
mechanical or from electric shock. Read the
warnings carefully.
Mechanical
Electrical
When you see this Signal Word on the following
pages, it will alertyou to the possibilityof damage
to your garage door and/or the garage door
opener if you do notcomply with the cautionary
statements that accompany it. Read them
carefully.
Check the Door
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. Ifyour door binds,
sticks, or is out of balance, call a trained
door systems technician.
4. Check the seal on the bottom of the
door.Anygap between the floor and
the bottom of the door mustnot exceed
1/4 inch (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 ofthe header bracket,itmay
be installed within 4 feet (1.2 m) to the
left or right of the door center.
See page 13.
Torsion Spring Extension Spring
OR
To prevent possible SERIOUS NJURYor
DEATH:
• ALWAYS call a trained door systems
technician if garage door binds, sticks, or
isoutofbalance. 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
installation and operating garage door
opener to avoid entanglement.
To prevent damage to garage door and
opener:
• ALWAYS disable locks BEFORE
installing and operating the opener.
• ONLY operate garage door opener at
120 V,60 Hzto avoid malfunction and
damage.
Preparation

3
üAdditional items you may need:
Survey your garage area to see if you will need
any of the following items:
q(2) 2X4 PIECES OF WOOD
Maybe used to fasten the header bracket to
the structural supports. Also used to position
the garage door opener during installation
and for testing the safetyreversing sensors.
qSUPPORT BRACKET AND FASTENING
HARDWARE
Mustbe used if you have a finished ceiling in
your garage.
qEXTENSION BRACKETS (MODEL
41A5281) OR WOOD BLOCKS
Depending upon garage construction,
extension brackets or wood blocks may be
needed to install the safetyreversing sensor.
qFASTENING HARDWARE
Alternate floor mounting of the safety
reversing sensor will require hardware not
provided.
qOUTSIDEQUICKRELEASE
(MODEL 7702CB)
Required for a garage with NO accessdoor.
qDOOR REINFORCEMENT
Required ifyou have a lightweightsteel,
aluminum, fiberglass or glass panel door.
qRAIL EXTENSION KIT
Required ifyour garage door is more than 7
feet (2.13 m) high.
Tools Needed
2
1
3/16
7/16
1/2
5/32
5/16
5/8 9/16 1/4
7/16
Preparation

4
Carton Inventory
Your garage door opener ispackaged in one carton which containsthe motor unitand all partsillustrated below.Accessoriesvarydepending on the garage door opener model purchased.Depending on your
model, other accessoriesmaybe included with your garage door opener.Instructions for these accessories will be attached to the accessory and are notincluded in this manual. Ifanything ismissing, carefully
check the packing material. Partsmay be stuck in the foam. Hardware for assembly and installation is shown on the nextpage. Save the carton and packing material until the installation and adjustment is
complete. The images throughout this manual are for reference only and your product may look different.
A. Header bracket
B. Pulley
C. Door bracket
D. Curved door arm
E. Straight door arm
(Packaged inside rail section)
F. Trolley
NOTE: Be sure to assemble the trolley
before sliding onto rail.
G. Emergency release rope and handle
H. Rail (1 front and 4 center sections)
I. Hanging brackets (2)
(Packaged inside rail section)
J. Garage door opener
K. Sprocket cover and screws
L. “U” bracket
M. Belt
N. Door control (Motion-Detecting Control
Panel or Smart Control Panel®)
O. Remote control
P. The Protector System®
Safety reversing sensors with 2 conductor
white and white/black wire attached:
Sending Sensor (1), Receiving Sensor (1),
and Safety Sensor Brackets (2)
NOTSHOWN
White and red/white wire
Owner's manual
N
A
B
C
H
K
J
O
I
D
E
F
G
L
M
P
OR
Preparation

5
Carton Inventory
H9
Hex Screw #8x3/8" (3)
(packed with the
sprocket cover)
H2
Bolt
1/4"-20x1-3/4" (2)
H4
Lock Nut 1/4"-20 (2)
H3
Bolt
H6
Nut 3/8" H7
Lock Washer 3/8"
H5
Master Link
H8
Spring
Trolley Nut
H12
Clevis Pin 5/16"x1-1/2"
H19
Ring Fastener (3)
H15
Hex Bolt 5/16"-18x7/8" (4)
H21
Lock Washer 5/16"-18 (7)
H20
Nut 5/16"-18 (8)
H16
Self-Threading Screw
1/4"-14x5/8" (2)
H14
Clevis Pin 5/16"x1"
H13
Clevis Pin 5/16"x1-1/4"
H17
Carriage Bolt 1/4"-20x1/2" (2)
H18
Wing Nut 1/4"-20 (2)
ASSEMBLY HARDWARE INSTALLATION HARDWARE
Screw 6ABx1-1/2" (2)
Drywall Anchors (2)
Screw 6-32x1" (2)
DOOR CONTROL HARDWARE
Insulated
Staples
H11
Lag Screw 5/16"-9x1-5/8" (2)
H10
Lag Screw 5/16"-18x1-7/8" (2)
H1
Threaded
Shaft
with
Preparation

6
To prevent NJURY from pinching, keep hands
and fingers away from the joints while assembling
the rail.
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
1.1 Assemble the trolley by sliding the inner
trolley into the outer trolley.
1.2 Carefully remove the straight door arm
and hanging brackets packaged inside the
front rail.
1.3 Align the railson a flat surface as shown.
The front rail has a cut out window near
the end. Make sure that the larger hole on
the front rail isfacing up.
1.4 Slide the tapered end of each rail section
into the larger end of the rail section in
frontofit. The tabs along the side will lock
in place. All holes in the rail sections
should face up.
1.5 Insert a screwdriver into the hole shown
(this will temporarily keep the trolley from
sliding off the end of the rail).
1.6 Checkto make sure that the 4 plastic wear
padsare inside the inner trolley.Ifthey are
missing check all the packing material and
snap them back into place.
1.7 Slide the trolley along the rail toward the
screwdriver as shown.
Trolley
To garage
door opener
Wear Pads
Inner Trolley
Outer Trolley
Assembly
1 Assemble the rail and trolley

7
2 Fasten the rail to the garage door opener
To avoid SERIOUS damage to garage door
opener, use ONLY those bolts/fasteners
mounted in the top of the opener.
(Mounted in the
garage door opener)
HARDWARE
H2
Bolt 1/4"-20x1-3/4"
H4
Lock Nut 1/4"-20
NOTE: ONLY use the bolts removed from the
garage door opener.Place the garage door
opener on the packing material to prevent
scratching.
2.1 Insert the bolt (H2) into the hole on the
back end of the rail as shown. Tighten
securely with the locknut (H4). Do not
overtighten.
2.2 Remove the two bolts from the top of the
garage door opener.
2.3 Place the “U” bracket, flatside down onto
the garage door opener and align the
bracket hole with the bolt holes.Fasten the
“U” bracketwith the previouslyremoved
bolts.
2.4 Prop up the end of the rail on the carton to
help align it with the “U” bracket.
2.5 Slide the rail onto the “U” bracket, until it
reaches all the stops on the top and sides
of the “U” bracket.
H2
“U” Bracket
Bolts
H4
SLIDE RAIL TO
STOPS ON TOP AND
SIDES
Cover
Protection
Bolt Hole
Carton
Assembly

8
HARDWARE
H3
Bolt H2
Bolt 1/4"-20x1-3/4"
H4
Lock Nut 1/4"-20
H6
Nut 3/8"
H7
Lock Washer 3/8"
3.1 Lay the belt beside the rail, as shown.
Grasp the end with the hooked trolley
connector and pass approximately12" (30
cm) of belt through the window. Keep the
ribbed side toward the rail,and allowit to
hang.
3.2 Remove the tape from the pulley.The
center should be greased, if not, regrease
the center of the pulley.
3.3 Insert the pulley into the window of the
front rail.
3.4 Insert the bolt (H3) into the rail and pulley.
Tighten securely with the lockwasher (H7)
and nut (H6).
3.5 Rotate the pulley to be sure it spins freely.
3.6 Insert the bolt (H2) into the hole shown
and fasten with the lock nut(H4).
H6
H7
H4
Screwdriver
Rail
Pulley
Trolley
Connector
H2
H3
Assembly
3 Install the pulley

9
4.1 Pull the belt around the pulley and toward
the trolley.The ribbed side mustcontact
the pulley.
4.2 Hook the trolley connector into the
retaining slot on the trolley as shown.
4.3 With the trolleyagainst the screwdriver,
dispense the remainder of the belt along
the rail length toward the motor unit and
around the sprocket. The sprocket teeth
must engage the belt.
4.4 Checkto make sure the belt isnot twisted.
Connect the trolley threaded shaft (H1)
with the master link (H5).
• Push pins of master link bar through
holes in end of beltand trolleythreaded
shaft (H1).
• Push master link cap over pins and past
pin notches.
• Slide clip-on spring over cap and onto
pin notches until both pins are securely
locked in place.
4.5 Remove the spring trolley nut (H8) from
the threaded shaft (H1).
4.6 Insert the trolley threaded shaft (H1)
through the hole in the trolley.
HARDWARE
H5
Master Link
H8
Spring
Trolley Nut
H1
Threaded Shaft
with
H5
H1
H5
Sprocket
Assembly
4 Install the belt

10
To avoid possible SERIOUS NJURY to finger from moving garage door opener:
• ALWAYS keep hand clear of sprocket while operating opener.
• Securely attach sprocket cover BEFORE operating.
H8
Spring Trolley Nut H9 (3)
Hex Screw #8x3/8"
(Packed with the
sprocket cover)
HARDWARE
5.1 By hand, thread the spring trolley nut on the
threaded shaft(H8) until itis finger tight
againstthe trolley.Do not use any tools.
Remove the screwdriver.
H8
(to motor unit)
5.2 Insert a flathead screwdriver tip into one
of the nut ring slotsand brace itfirmly
against the trolley.
Nut ring slot
5.3 Tighten the spring trolley nut with an adjustable wrench or a 7/16" open end wrench about a quarter turn until the spring releasesand snapsthe
nut ring againstthe trolley.This sets the spring to optimum belttension.
Nut Ring
BEFORE
1"
(2.5 cm)
Nut Ring
AFTER
1-1/4"
(3.18 cm)
5.4 Position the sprocket cover over the garage
door opener sprocket and attach with hex
screws (H9).
H9
Assembly
5 Tighten the belt and install the sprocket cover