Chamberlain 2500B User Manual

Owner’s Manual

■ Please read this manual and the enclosed safety materials carefully!

■ Fasten the manual near the garage door after installation.

■ The door WILL NOT CLOSE unless The Protector System

is connected

and properly aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located on the front of your opener.

GARAGE DOOR OPENER Model 2500B

For Residential Use Only

The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196

www.liftmaster.com

New!

Optional Accessory

Available

See Page 35 for the New

Introduction 2-5

Safety symbol review and signal word review ............2

Preparing your garage door ........................................3

Tools ............................................................................3

Planning .....................................................................4

Carton inventory ..........................................................5

Hardware inventory .....................................................5

Assembly 6-7

Fasten rail to the motor unit ........................................6

Set the belt tension .....................................................6

Attach the belt cap retainer .........................................7

Installation 7-23

Installation safety instructions .....................................7

Determine the header bracket location....................8-9

Install the header bracket..........................................10

Attach the rail to the header bracket .........................11

Position the opener ...................................................12

Hang the opener .......................................................13

Install the door control...............................................14

Install the lights and lens...........................................15

Attach the emergency release rope and handle .......15

Electrical requirements..............................................16

Install The Protector System®..............................17-19

Fasten the door bracket .......................................20-21

Connect the door arm to the trolley .....................22-23

Adjustment 24-26

Program the travel limits ...........................................24

Setting the force ........................................................25

Test the safety reversal system.................................26

Test The Protector System®......................................26

Operation 27-30

Operation safety instructions.....................................27

Using your garage door opener ................................27

Using the door control ...............................................28

To open the door manually........................................28

Care of your garage door opener..............................29

Having a problem?...............................................29-30

Programming 31-32

To add or reprogram a hand-held remote control .....31

To erase all codes .....................................................31

3-Button Remotes .....................................................31

To add, reprogram or change

a Keyless Entry PIN ..................................................32

Repair Parts 33-34

Rail assembly parts...................................................33

Installation parts ........................................................33

Motor unit assembly parts .........................................34

Accessories 35

Repair Parts and Service 36

Warranty 36

INTRODUCTION

Safety Symbol Review

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.

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

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.

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.

WARNING

Tools needed

During assembly, installation and adjustment of the opener, instructions will call for hand tools as illustrated below.

Sectional Door

One-Piece Door

WARNING

CAUTION

Carpenter’s Level (Optional)

Drill

Tape Measure

3/16", 5/16" and 5/32" Drill Bits

Pencil

Hack Saw

Wire Cutters

Claw Hammer

Pliers

Stepladder

1/2" and 7/16" Sockets and Wrench

Screwdriver

Adjustable End Wrench

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 as you proceed with the installation of your opener.

ONE-PIECE DOOR WITHOUT TRACK

ONE-PIECE DOOR WITH TRACK

Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 20 for details.

Header Wall

Vertical Centerline of Garage Door

Safety Reversing Sensor

Gap between floor and bottom of door must not exceed 1/4".

Rail

Extension Spring OR Torsion Spring

Safety Reversing Sensor

FINISHED CEILING

Support bracket & fastening hardware is required. See page 13.

Wall-mounted

Access Door

Door Control

Motor unit

Header Wall

Safety Reversing Sensor

Gap between floor and bottom of door must not exceed 1/4".

Rail

Wall-mounted Door Control

Access Door

FINISHED CEILING

Support bracket & fastening hardware is required. See page 13.

Gap between floor

Safety Reversing Sensor

and bottom of door must not exceed 1/4".

Motor unit

Access Door

Safety Reversing Sensor

Your garage door opener is packaged in two cartons which contain the motor unit and the parts illustrated below. Note that accessories will depend on the

model purchased. If anything is missing, carefully check the packing material. Parts may be stuck in the foam. KEEP THE FOAM INTACT (see page 6.)

Carton Inventory

Hardware Inventory

INSTALLATION HARDWARE

Hex Screw #8x3/8" (3) Hex Bolt 5/16"-18x7/8" (4) Lag Screw 5/16"-9x1-5/8" (2) Lag Screw 5/16"-18x1-7/8" (2) Self-Threading Screw 1/4"-14x5/8" (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) Insulated Staples (30) Ring Fastener (3) Handle Drywall Anchors (2) Rope Carriage Bolts 1/4"-20x1/2" (2) Wing Nut 1/4"x20 (2)

Remote Control

LIGHT

Multi-Function Door Control Panel

Header Bracket

Transmitter Visor Clip

Motor Unit with Light Lens

One-Piece T-rail

SECURITY✚ 3-Button Remote Control

2-Conductor Bell Wire White & White/Red

Belt Cap Retainer

Styrofoam

Belt

Door Bracket

Curved Door Arm Section

Belt Pulley Bracket

Trolley

Safety Sensor Bracket (2)

(2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached

Safety Labels and Literature

Straight Door Arm Section

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 two washered bolts mounted in top of motor unit.

• Align rail and styrofoam over sprocket. Cut tape from rail, belt and styrofoam.

• REMOVE STYROFOAM.

• Insert both washered bolts through the rail into the motor unit. Tighten bolts securely.

Use only these bolts! Use of any other bolts will cause serious damage to door opener.

• Position belt over the motor unit sprocket.

Motor Unit Sprocket

Foam Packaging

Washered Bolts 5/16"-18x1/2"

ASSEMBLY STEP 2

Set the Belt Tension

• By hand, thread the spring trolley nut on the threaded

shaft until it is finger tight against the trolley (Figure 1). Do not use any tools.

• Insert a screwdriver tip into one of the nut ring slots and

brace it firmly against the trolley (Figure 2).

• Place a 7/16" open end wrench on the square

end. Rotate about 1/4 turn until the spring releases and snaps the nut ring against the trolley (Figure 3).

This extends the spring for optimum belt tension.

Figure 1

Figure 2

Figure 3

To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.

WARNING

CAUTION

Trolley

Spring Trolley Nut

Trolley Threaded Shaft

Trolley

Square End

Trolley

Nut Ring Trolley

Nut Ring

Trolley Threaded Shaft

Nut Ring Slots

Nut Ring

BEFORE AFTER RELEASE

1" 1-1/4"

ASSEMBLY STEP 3

Attach the Belt Cap Retainer

• Position the belt cap retainer over the opener

sprocket so the two holes in cap align with the two holes in mounting plate. Attach with #8x3/8" hex screws provided.

You have now finished assembling your garage door opener. Please read the following warnings before proceeding to the installation section.

IMPORTANT INSTALLATION INSTRUCTIONS

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 or more above floor.

6. Mount emergency release handle 6 feet 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.

• 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" high object (or a 2x4 laid flat) on the floor.

To reduce the risk of severe injury or death:

INSTALLATION

HARDWARE SHOWN ACTUAL SIZE

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

Hex Screw #8x3/8"

WARNING

Hex Screws #8x3/8"

Belt Cap Retainer

Opener Sprocket

Mounting Plate

WARNING

INSTALLATION STEP 1

Determine the Header Bracket Location

Installation procedures vary according to garage door types. Follow the instructions which apply to your door.

SECTIONAL DOOR AND ONE-PIECE DOOR WITH TRACK

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 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 10) when clearance is minimal. (It may be mounted on the wall upside down if necessary, to gain approximately 1/2".)

If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports as shown here and on page 10.

3. Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header wall 2" above the high point. This height will provide travel clearance for the top edge of the door.

Proceed to Step 2, page 10.

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.

WARNING

One-piece

door with

horizontal

track

Sectional door with curved track

WARNING

Header Wall

Unfinished Ceiling

Vertical Centerline of Garage Door

Level (optional)

Ceiling

2x4

OPTIONAL CEILING MOUNT FOR HEADER BRACKET

Structural Supports

Header Wall

Highest Point of Travel

Door

Track

Header Wall

Highest Point of Travel

Track

ONE-PIECE DOOR WITHOUT TRACK

1. Close the door and mark the inside vertical centerline of your garage door. Extend the line onto the header wall above door, as shown.

If headroom clearance is minimal, you can install the header bracket on the ceiling. See page 10.

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. If installing into masonry, use concrete anchors (not provided).

2. Open your door to the highest point of travel as shown. Measure the distance from the top of the door to the floor. Subtract the actual height of the door. Add 8" to the remainder. (See Example).

3. Close the door and draw an intersecting horizontal line on the header wall at the determined height.

NOTE: If the total number of inches exceeds the height available in your garage, use the maximum height possible, or refer to page 10 for ceiling installation.

EXAMPLE

Distance from top of door

(at highest point of travel) to floor ...................... 92"

Actual height of door .......................................... -88"

Remainder.......................................................... 4"

Add..................................................................... +8"

Bracket height on header wall............................ =12"

(Measure UP from top of CLOSED door.)

Proceed to Step 2, page 10.

One-piece door without track: pivot hardware

One-piece door without track: jamb hardware

Header Wall

Jamb Hardware

Door

Unfinished Ceiling

2x4

Vertical Centerline of Garage Door

Header Wall

Highest Point of Travel

Distance

Structural Supports

2x4

OPTIONAL CEILING MOUNT FOR HEADER BRACKET

Door

Floor

Header Wall

Pivot

Highest Point of Travel

Distance

Floor

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.

CEILING MOUNT ONLY

Ceiling Mounting Holes

The nail hole is for positioning only. You must use lag screws to mount the header bracket.

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

Garage Door

Header Wall

— Finished Ceiling —

Header Bracket

6" Maximum

Door Spring

Vertical Centerline of Garage Door

CEILING HEADER BRACKET INSTALLATION

• Extend the vertical centerline onto the ceiling as

shown.

• Center the bracket on the vertical mark, no more

than 6" from the wall. Make sure the arrow is pointing toward the wall. The bracket can be mounted flush against the ceiling when clearance is minimal.

• Mark the side holes. Drill 3/16" pilot holes and

fasten bracket securely to a structural support with the hardware provided.

HARDWARE SHOWN ACTUAL SIZE

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

2x4 Structural Support

Horizontal Line

Highest Point of Garage Door Travel

Wall Mounting Holes

CEILING MOUNT ONLY

Optional Wall Mounting Holes

Header Wall

Header Bracket

The nail hole is for positioning only. You must use lag screws to mount the header bracket.

Vertical Centerline of Garage Door

Door Spring

Garage Door

Vertical Centerline of Garage Door

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

Header Wall

HARDWARE SHOWN ACTUAL SIZE

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

Belt Pulley Bracket

Torsion Spring

Garage Door

Rail

Foam Packaging

Header Bracket

Clevis Pin 5/16"x2-3/4"

Ring Fastener

Belt Pulley Bracket

Opener Carton or Temporary Support

Rail

Clevis Pin 5/16"x2-3/4"

Ring Fastener

+ 25 hidden pages

Chamberlain 2500B User Manual

GARAGE DOOR OPENER Model 2500B

TABLE OF CONTENTS

INTRODUCTION

Preparing your garage door

Tools needed

Planning

Carton Inventory

Hardware Inventory

INSTALLATION

ONE-PIECE DOOR WITHOUT TRACK