Chamberlain HD920EV User manual

Brand: Chamberlain

Model: HD920EV

Category: Garage Door Opener

Type: 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

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 instructionsand warnings

contained in thismanual.

When you see these SafetySymbols 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 warningsthataccompany

them. The hazard may come from something

mechanical or from electric shock. Read the

warningscarefully.

Mechanical

Electrical

When you see this Signal Word on the following

pages, itwill alertyou to the possibility of damage

to your garage door and/or the garage door

opener ifyou do not comply with the cautionary

statementsthataccompanyit. Read them

carefully.

Check the Door

1. Disable locks and remove anyropes

connected to the garage door.

2. Liftthe door halfway up.Release the

door.If balanced,it should stay in

place, supported entirely by itssprings.

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 must not exceed

1/4 inch (6 mm).Otherwise, the safety

reversal systemmay notwork properly.

5. The opener should be installed above

the center of the door. Ifthere is a

torsion spring or center bearing plate

in the way of the header bracket, it may

be installed within 4 feet (1.2 m) to the

leftor rightofthe door center.

See page 13.

Torsion Spring

Extensi

on Spring

To preventpossible SERIOUS NJURYor

DEATH:

• ALWAYS call a trained door systems

technician if garage door binds, sticks,or

is outof balance. An unbalanced garage

door mayNOT reverse when required.

• NEVER try to loosen, move or adjust

garage door, door springs,cables,

pulleys,bracketsor 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 preventdamage to garage door and

opener:

• ALWAYS disable locks BEFORE

installing and operating the opener.

• ONLY operate garage door opener at

120 V, 60 Hz to avoid malfunction and

damage.

Preparation

üAdditional items you may need:

Survey your garage area to see if you will need

any of the following items:

(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.

SUPPORT BRACKET AND FASTENING

HARDWARE

Must be used if you have a finished ceiling in

your garage.

EXTENSION BRACKETS (MODEL

41A5281) OR WOOD BLOCKS

Depending upon garage construction,

extension brackets or wood blocksmay be

needed to install the safetyreversing sensor.

FASTENING HARDWARE

Alternate floor mounting ofthe safety

reversing sensor will require hardware not

provided.

OUTSIDEQUICKRELEASE

(MODEL 7702CB)

Required for a garage with NO access door.

DOOR REINFORCEMENT

Required if you have a lightweightsteel,

aluminum, fiberglassor glass panel door.

RAIL EXTENSION KIT

Required if your garage door is more than 7

feet(2.13 m) high.

Tools Needed

3/16

7/16

1/2

5/32

5/16

5/8

9/16

1/4

7/16

Preparation

Carton Inventory

Your garage door opener is packaged in one carton which contains the motor unitand all partsillustrated below.Accessories vary depending on the garage door opener model purchased.Depending on your

model, other accessoriesmaybe included with your garage door opener. Instructionsfor these accessories will be attached to the accessory and are notincluded in thismanual.Ifanything is missing, carefully

check the packing material. Parts maybe stuckin the foam.Hardware for assembly and installation is shown on the nextpage. Save the carton and packing material until the installation and adjustmentis

complete. The images throughout thismanual are for reference only and your productmay 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

Preparation

Carton Inventory

Hex Screw #8x3/8" (3)

(packed with the

sprocket cover)

Bolt

1/4"-20x1-3/4" (2)

Lock Nut 1/4"-20 (2)

Bolt

Nut 3/8"

Lock Washer 3/8"

Master Link

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)

Threaded

Shaft

with

Preparation

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 flatsurface as shown.

The front rail has a cut outwindow near

the end.Make sure thatthe larger hole on

the front rail is facing up.

1.4 Slide the tapered end of each rail section

into the larger end ofthe rail section in

front of it. 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 Check to make sure thatthe 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

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

Bolt 1/4"-20x1-3/4"

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

backend of the rail as shown. Tighten

securely with the lock nut (H4). Do not

overtighten.

2.2 Remove the two bolts from the top of the

garage door opener.

2.3 Place the “U” bracket, flat side down onto

the garage door opener and align the

brackethole with the boltholes.Fasten the

“U” bracket with the previously removed

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

reachesall the stops on the top and sides

of the “U” bracket.

“U” Bracket

Bolts

SLIDE RAIL TO

STOPS ON TOP AND

SIDES

Cover

Protection

Bolt Hole

Carton

Assembly

HARDWARE

Bolt

Bolt 1/4"-20x1-3/4"

Lock Nut 1/4"-20

Nut 3/8"

Lock Washer 3/8"

3.1 Lay the beltbeside the rail, as shown.

Grasp the end with the hooked trolley

connector and pass approximately 12" (30

cm) of belt through the window.Keep the

ribbed side toward the rail,and allow itto

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 lock washer (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).

Screwdriver

Rail

Pulley

Trolley

Connector

Assembly

3 Install the pulley

4.1 Pull the beltaround the pulley and toward

the trolley.The ribbed side must contact

the pulley.

4.2 Hook the trolley connector into the

retaining sloton the trolley asshown.

4.3 With the trolley against the screwdriver,

dispense the remainder of the beltalong

the rail length toward the motor unitand

around the sprocket.The sprocket teeth

must engage the belt.

4.4 Check to make sure the beltis not twisted.

Connectthe trolley threaded shaft (H1)

with the master link (H5).

• Push pins of master link bar through

holes in end of belt and trolley threaded

shaft (H1).

• Push master linkcap over pinsand past

pin notches.

• Slide clip-on spring over cap and onto

pin notchesuntil both pinsare 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

Master Link

Spring

Trolley Nut

Threaded Shaft

with

Sprocket

Assembly

4 Install the belt

To avoid possible SERIOUS NJURY to finger from moving garage door opener:

• ALWAYS keep hand clear of sprocket while operating opener.

• Securelyattach sprocketcover BEFORE operating.

Spring Trolley Nut

H9 (3)

Hex Screw #8x3/8"

(Packed with the

sprocket cover)

HARDWARE

5.1 By hand,thread the spring trolleynut on the

threaded shaft (H8) until it is finger tight

againstthe trolley.Do notuse any tools.

Remove the screwdriver.

(to motor unit)

5.2 Insert a flathead screwdriver tip into one

of the nutring slots and brace it firmly

againstthe trolley.

Nut ring slot

5.3 Tighten the spring trolley nut with an adjustable wrench or a 7/16" open end wrench abouta quarter turn until the spring releasesand snaps the

nut ring againstthe trolley.This sets the spring to optimumbelttension.

Nut Ring

BEFORE

(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).

Assembly

5 Tighten the belt and install the sprocket cover

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 resultin SEVERE

INJURY or DEATH.

3. ALL repairs to cables, spring assembliesand 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 the emergencyrelease within reach, but at least6 feet (1.83 m) above the floor and

avoiding contact with vehicles to avoid accidental release.

7. NEVER connectgarage 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 of5 feet (1.5 m).

• away from ALL moving parts ofthe door.

10. Place entrapment warning label on wall nextto garage door control.

11. Place manual release/safetyreverse test label in plain view on inside ofgarage 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.

13. To avoid SERIOUS PERSONAL NJURY or DEATHfrom electrocution,disconnectALL

electricand batterypower BEFORE performing any service or maintenance.

14. DO NOT enable the Timer-to-Close functionality if operating either one-piece or swinging

garage doors.To be enabled ONLY when operating a sectional door.

Installation

1 Determine the header bracket

location

To preventpossible SERIOUS INJURY or

DEATH:

• Header bracketMUSTbe RIGIDLY

fastened to structural supporton header

wall or ceiling, otherwise garage door might

NOTreverse when required. DO NOT

install header bracket over drywall.

• Concrete anchors MUSTbe used if

mounting header bracketor 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.

Installation

Installation procedures varyaccording to garage door types. Follow the instructionswhich applyto your

door.

1.1 Close the door and mark the inside vertical centerline ofthe garage door.

1.2 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 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 securelyfasten the 2x4 to structural supports.

1.3 Open your door to the highestpoint oftravel as shown. Draw an intersecting horizontal line on

the header wall 2" (5 cm) above the high point.

• 2" (5 cm) above the high pointfor sectional door and one-piece door with track.

• 8" (20 cm) above the high point for one-piece door withouttrack.This heightwill provide travel

clearance for the top edge of the door.NOTE:If the total number of inches exceeds the height

available in your garage, use the maximum height possible, or refer to page 13 for ceiling

installation.

Sectional door with

curved track

Header Wall

Track

2" (5 cm)

Highest Point

of Travel

Door

One-piece door with

horizontal track

Header Wall

Track

2" (5 cm)

Highest Point

of Travel

Door

One-piece door without track:

jamb hardware

Header Wall

8" (20 cm)

Highest

Point of

Travel

Door

Jamb

Hardware

Header Wall

Unfinished

Ceiling

Vertical Centerline

of Garage Door

2x4

Structural

Supports

Level

(Optional)

OPTIONAL

CEILING

MOUNT FOR

HEADER

BRACKET

One-piece door without track:

pivot hardware

Header Wall

8" (20 cm)

Highest

Point of

Travel

Door

Pivot

You can attach the header bracketeither to the

wall above the garage door, or to the ceiling.

Follow the instructionswhich will workbest for

your particular requirements.Do not install the

header bracket over drywall. If installing into

masonry, use concrete anchors (not provided).

HARDWARE

H11 (2)

Lag Screw

5/16"-9x1-5/8"

OPTION A WALL INSTALLATION

2.1A Center the bracketon the vertical

centerline with the bottom edge of the

bracketon the horizontal line as shown

(with the arrow pointing toward the

ceiling).

2.2A Markthe vertical setofbracket holes (do

not use the holes designated for ceiling

mount).Drill 3/16" pilot holes and fasten

the bracketsecurely to a structural

supportwith the hardware provided

(H11).

OPTION B CEILING INSTALLATION

2.1B Extend the vertical centerline onto the

ceiling as shown.

2.2B Center the bracketon the vertical mark,

no more than 6" (15 cm) from the wall.

Make sure the arrow is pointing away

from the wall. The bracketcan be

mounted flush against the ceiling when

clearance isminimal.

2.3B Markthe side holes. Drill 3/16" pilotholes

and fasten bracketsecurely to a structural

supportwith the hardware

provided (H11).

Wall Mount

Optional

Mounting

Holes

H11

Vertical

Centerline of

Garage Door

(Header Wall)

Header

Bracket

2x4 Structural

Support

Door Spring

(Garage Door)

Highest Point of

Garage Door

Travel

Horizontal

Line

(Header Wall)

Ceiling Mounting Holes

(Finished Ceiling)

Vertical

Centerline of

Garage Door

Header

Bracket

6" (15 cm)

Maximum

Door Spring

(Garage Door)

H11

Installation

2 Install the Header Bracket

3.1 Align the rail with the header

bracket. Insert the clevis pin

(H12) through the holes in the

header bracket and rail.Secure

with the ring fastener (H19).

NOTE: Use the packing material as a

protective base for the garage door

opener.

H12

H19

HARDWARE

H12

Clevis Pin 5/16"x1-1/2"

H19

Ring Fastener

4 Position the garage door opener

To preventdamage to garage door, rest garage

door opener rail on 2x4 placed on top section of

door.

4.1 Remove the packing material and liftthe

garage door opener onto a ladder.

NOTE: A 2x4 is ideal for setting the distance

between the rail and the door. If the ladder is

not tall enough you will need help at this point.

4.2 Fullyopen the door and place a 2x4 (laid flat) under the rail.For one-piece doors without

tracks, lay the 2x4 on it'sside.

NOTE: If the door hits the trolley when it is raised, pull the trolley release arm down to

disconnectthe inner and outer trolley. Slide the outer trolley toward the garage door opener.

The trolley can remain disconnected until instructed.

Connected Disconnected

One-piece

door

without

tracks

All other

door types

Installation

3 Attach the rail to the header bracket

To avoid possible SERIOUS NJURY from a

falling garage door opener, fasten it SECURELY to

structural supportsof the garage.Concrete anchors MUST

be used if installing ANY brackets into masonry.

HARDWARE

H10 (2)

Lag Screw 5/16"- 18x1-7/8"

H15 (2)

Hex Bolt 5/16"- 18x7/8"

H21 (2)

Nut 5/16"-18

H20 (2)

Lock Washer

5/16"-18

Hanging the garage door opener will vary

depending on your garage. Below are three

example installations. Your installation may be

different. For ALL installations the garage door

opener MUSTbe connected to structural

supports. The instructions illustrate one of the

examples below.

Finished Ceiling

Unfinished Ceiling

5.1 On finished ceilings, use the lag screws

(H10) to attach a support bracket(not

provided) to the structural supports

before installing the garage door opener.

Finished

Ceiling

H10

(not provided)

H10

5.2 Make sure the garage door opener is

aligned with the header bracket.Measure

the distance from each side of the garage

door opener to the support bracket.

5.3 Cut both pieces ofthe hanging bracket

(notprovided) to required lengths.

5.4 Attach the end of each hanging bracketto

the support bracketwith appropriate

hardware (notprovided).

(not provided)

5.5 Attach the garage door opener to the

hanging brackets with the bolts (H21),

lockwashers(H15) and nuts (H20).

H15

H20

H21

5.6 Remove the 2x4 and manuallyclose the

door.If the door hitsthe rail, raise the

header bracket.

Installation

5 Hang the garage door opener

To preventpossible OVERHEAT NG of the end panel or lightsocket:

• Use ONLY A19 incandescent or compact fluorescent lightbulbs.

• DO NOT use incandescent bulbs larger than 100W.

• DO NOT use compact fluorescent lightbulbs larger than 26W (100W) equivalent.

• DO NOT use halogen bulbs.

• DO NOT use short neck or specialty light bulbs.

6.1 Pull on the top sides ofthe light lens and

rotate the light lens down.

6.2 Insert an A19 incandescent or compact

fluorescentlight bulb (100 watt maximum),

into the lightsocket.

6.3 Rotate the lensup to close.

NOTE: The use of short neck or speciality light

bulbs may overheat the end panel or light socket.

7 Attach the emergency release rope and handle

To preventpossible 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 doorwayis clear of persons and

obstructions.

• NEVER use handle to pull door open or closed.Ifrope knotbecomesuntied,you could fall.

7.1 Insert one end of the emergency release

rope through the handle. Make sure that

“NOTICE” is right side up. Tie a knot at

least 1 inch (2.5 cm) from the end of the

emergency release rope.

7.2 Insert the other end of the emergency

release rope through the hole in the

trolley release arm. Make sure the

handle is 6 feet (1.83 m) above the floor

and secure with a knot.

NOTE: If it is necessary to cut the emergency

release rope, seal the cut end with a match or

lighter to prevent unraveling. Ensure the

emergency release rope and handle are

above the top of all vehicles to avoid

entanglement.

NOT CE

Installation

6 Install the light bulbs

Fiberglass,aluminum or lightweightsteel garage doors WILLREQUIRE reinforcement BEFORE

installation of door bracket.Contactyour door manufacturer for reinforcement kit.

Figure 1 showsone 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 the next step.

H16 (2)

Self-Threading Screw

1/4˝-14x5/8˝

HARDWARE

OPTION A SECTIONALDOORS

8.1A Center the door bracketon the previously marked vertical centerline used for the header bracket

installation.Note correctUP placement,asstamped inside the bracket.

8.2A Position the top edge of the bracket2"-4" (5-10 cm) below the top edge ofthe door, ORdirectly

below anystructural support across the top of the door.

8.3A 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 bracketusing the two self threading screws (H16).

(Figure 2)

• Alternately,use two 5/16" bolts,lock washers and nuts (not provided). (Figure 3)

Metal, insulated or light weight factory reinforced doors:

• Drill 3/16" fastening holes.Secure the door bracketusing the self-threading screws (H16).

(Figure 4)

Wood Doors:

• Use top and bottom or side to side door bracketholes. Drill 5/16” holes through the door and

secure bracketwith 5/16"x2" carriage bolts, lockwashers and nuts (not provided). (Figure 5)

NOTE: The 1/4"-14x5/8" self-threading screws are not intended for use on wood doors.

8 Install the door bracket

A horizontal and vertical reinforcement

is needed for lightweight garage doors

(ﬁ berglass, aluminum, steel, doors

with glass panel, etc.) (not provided).

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

FIGURE 2

FIGURE 4

FIGURE 5

FIGURE 3

Vertical Reinforcement

Vertical Centerline

of Garage Door

Door Bracket

H16

Vertical Reinforcement

Vertical Centerline

of Garage Door

Bolt 5/16"-18x2"

(not provided)

Lock Washer 5/16"

Nut 5/16"-18

Door Bracket

Vertical Centerline

of Garage Door

H16

Vertical

Centerline of

Garage Door

Bolt 5/16"-18x2"

(not provided)

Inside Edge of Door or

Reinforcement Board

Installation

OPTION B ONE-PIECEDOORS

8.1B Center the door bracketon the top of the

door,in line with the header bracketas

shown.

8.2B Mark either the leftand right, or the top

and bottomholes.

Metal Doors:

• Drill 3/16" pilotholes and fasten the bracket

with the self-threading screws (H16)

provided.

Wood Doors:

• Drill 5/16" holesand use 5/16"x2" carriage

bolts, lockwashers and nuts (not provided)

or 5/16"x1-1/2" lag screws(not provided)

depending on your installation needs.

NOTE: The door bracket may be installed on the

top edge of the door if required for your

installation. (Refer to the dotted line optional

placement drawing.)

For a door with no exposed framing, or for the

optional installation, use lag screws 5/16"x1-1/2"

(not provided) to fasten the door bracket.

Vertical

Centerline

of Garage

Door

Optional

Placement

of Door

Bracket

Door Bracket

Header Bracket

Header Wall

2x4 Support

(Finished Ceiling)

H16

Door

Bracket

Top of Door

(Inside Garage)

Top Edge of

Door

Optional

Placement

Optional

Placement

Top Edge

of Door

Top of Door

(Inside Garage)

Door

Bracket

Carriage Bolt 5/16"x2"

(not provided)

Nut 5/16"-18

Lock Washer 5/16"

Metal Door

Wood Door

Installation

8 Install the door bracket

9 Connect the door arm to the trolley

Installation will vary according to the garage door type. Follow the instructionswhich apply to your door.

IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm (Figure 1).

OPTION A ONE-PIECE DOORS

9.1A Close the door. Disconnectthe trolley

by pulling the emergencyrelease

handle.

9.2A Fasten the straightdoor arm and the

curved door armtogether to the

longestpossible length (with a 2 or 3

hole overlap) using the bolts (H15),

nuts(H20) and lock washers (H21).

9.3A Attach the straight door arm to the door

bracketusing the clevis pin (H13).

Secure with the ring fastener (H19).

9.4A Attach the curved door arm to the

trolley using the clevis pin (H14).

Secure with the ring fastener (H19).

9.5A Pull the emergency release handle

toward the garage door opener until

the trolley release armis horizontal.

H20

H21

H15

H13

H19

H14

H20

H13

H19

H15

H21

H14

H19

One-Piece Door without Track

One-Piece Door with Track

Straight

Door Arm

Curved

Door

Arm

(Groove

facing out)

CORRECT

FIGURE 1

INCORRECT

Straight

Door

Arm

Curved

Door

Arm

HARDWARE

H15

Hex Bolt 5/16"-18x7/8"

H20

Nut

5/16"-18

H21

Lock

Washer

5/16" -18

H14

Clevis Pin 5/16"x1"

H13

Clevis Pin 5/16"x1-1/4"

H19

Ring Fastener

Installation

9 Connect the door arm to the trolley

OPTION B SECTIONAL DOORS

IMPORTANT: The groove on the straight door arm

MUST face away from the curved door arm (Figure 1).

9.1B Close the door. Disconnectthe trolley by

pulling the emergencyrelease handle.

9.2B Attach the straight door arm to the outer

trolley using the clevis pin (H14).Secure with

the ring fastener (H19).

9.3B Attach the curved door arm to the door

bracketusing the clevis pin (H13). Secure

with the ring fastener (H19).

9.4B Bring arm sections together.Find two pairs of

holes thatline up and join sections.Select

holes as far apartas possible to increase

door arm rigidity and attach using the bolts

(H15), nuts (H20) and lockwashers (H21).

9.5B Pull the emergency release handle toward

the garage door opener until the trolley

release arm is horizontal.The trolley will re-

engage automaticallywhen the garage door

opener isactivated.

NOTE: If the holes in the curved door arm and the

straight door arm do not align, reverse the straight

door arm, select two holes (as far apart as possible)

and attach using bolts (H15), nuts (H20), and lock

washers (H21). If the straight door arm is hanging

down too far, you may cut 6 inches (15 cm) from the

solid end.

H14

H13

H19

H15

H20

H21

Straight

Door Arm

Curved

Door

Arm

(Groove

facing out)

CORRECT INCORRECT

FIGURE 1

Straight

Door

Arm

Curved

Door

Arm

HARDWARE

H15

Hex Bolt 5/16"-18x7/8"

H20

Nut

5/16"-18

H21

Lock

Washer

5/16" -18

H14

Clevis Pin 5/16"x1"

H13

Clevis Pin 5/16"x1-1/4"

H19

Ring Fastener

Installation

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Chamberlain HD920EV User manual

Brand: Chamberlain

Model: HD920EV

Category: Garage Door Opener

Type: User manual

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Chamberlain HD920EV User manual

Chamberlain HD920EV User manual

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