Chamberlain Whisper Drive WD922KC User manual

GARAGE DOOR OPENER
Model WD922KC - 1/2 HP
For Residential Use Only
®
Owner’s Manual
■Please read this manual and the enclosed safety materials carefully!
■asten 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 left side panel of your opener.
®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 6 126-1196
www.chamberlain.com

2
Introduction Pages 2-7
Safety symbol and signal word review ........................2
Preparing your garage door ........................................3
Tools needed...............................................................3
Planning ..................................................................4-5
Carton inventory..........................................................6
Hardware inventory .....................................................7
Assembly Pages 8-11
Assemble T-rail & attach the belt pulley bracket..........8
Install the trolley ..........................................................9
Fasten T-rail to motor unit............................................9
Install the belt and set the tension ............................1
Attach the belt cap retainer .......................................11
Installation Pages 11-27
Installation safety instructions ...................................11
Determine the header bracket location................12-13
Install the header bracket..........................................14
Attach the T-rail to the header bracket ......................15
Position the opener ...................................................16
Hang the opener .......................................................17
Install the door control...............................................18
Install the light bulbs..................................................19
Attach the emergency release rope and handle .......19
Electrical requirements..............................................2
Install the Protector System®................................21-23
Fasten the door bracket .......................................24-25
Connect the door arm to the trolley .....................26-27
Adjustment Pages 28-30
Adjust the travel limits ...............................................28
Adjust the force .........................................................29
Test the safety reversal system .................................3
Test the Protector System®........................................3
Operation Pages 31-34
Operation safety instructions.....................................31
Using your garage door opener ................................31
Using the wall-mounted door control ........................32
To open the door manually........................................32
Care of your garage door opener..............................33
Having a problem? ....................................................34
Programming Pages 35-36
To add a hand-held remote control ...........................35
To erase all codes .....................................................35
Multi-function remotes...............................................35
To add or change a Keyless Entry PIN .....................36
Repair Parts Pages 37-38
Rail assembly parts...................................................37
Installation parts ........................................................37
Motor unit assembly parts.........................................38
Accessories 39
Repair Parts and Service 40
Warranty 40
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.
Electrical
Mechanical
WARNING
CAUTION
WARNING
WARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
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.

3
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
To prevent damage to garage door and opener:
• ALWAYS disable locks before installing and operating
the opener.
• ONLY operate garage door opener at 20V, 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
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
Sectional Door
One-Piece Door

Safety Reversing Sensor
Support bracket &
fastening hardware
is required.
See page 17.
— — — — — — — —
Door Center
Header Wall
FINISHED CEILING
Torsion
Spring
Extension
Spring
OR
Safety
Reversing
Sensor
Gap between floor
and bottom of door
must not exceed 1/4"
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 24 for details.
Motor unit
4
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.
Depending on your requirements, there are several
installation steps which may call for materials or
hardware not included in the carton.
• Installation Step 1 – Look at the wall or ceiling
above the garage door. The header bracket must
be securely fastened to structural supports.
• Installation Step 5 – Do you have a finished ceiling
in your garage? If so, a support bracket and
additional fastening hardware may be required.
• Installation Step 1 – Depending upon garage
construction, extension brackets or wood blocks
may be needed to install sensors.
• Installation Step 1 – Alternate floor mounting of
the safety reversing sensor will require hardware
not provided.
• Do you have an access door in addition to the
garage door? If not, Model 77 2C Outside Quick
Release is required. See Accessories page.
• Look at the garage door where it meets the floor.
Any gap between the floor and the bottom of the
door must not exceed 1/4". Otherwise, the safety
reversal system may not work properly. See
Adjustment Step 3. Floor or door should be
repaired.
SECTIONAL DOOR INSTALLATIONS
• Do you have a steel, aluminum, fiberglass or glass
panel door? If so, horizontal and vertical reinforce-
ment is required (Installation Step 11).
• 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 4 feet to the left or right of
the door center. See Installation Steps 1 and 11.
• If your door is more than 7 feet high, see rail
extension kits listed on Accessories page.
Belt Pulley
Bracket
Header
Bracket Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket
Garage
Door
Curved
Door
Arm
Garage
Door
Spring
Header
Wall
CLOSED POSITION

Access
Door
Gap between floor and
bottom of door must
not exceed 1/4"Safety
Reversing Sensor
Safety
Reversing
Sensor
CLOSED POSITION
Header
Bracket
Belt
Pulley Bracket
Door
Bracket Straight
Door
Arm
Curved
Door Arm
Trolley
Emergency Release
Rope & Handle
T-rail
Garage
Door
Belt
Header
Wall
5
Planning (Continued)
ONE-PIECE DOOR INSTALLATIONS
• Generally, a one-piece door does not require
reinforcement. If your door is lightweight, refer to
the information relating to sectional doors in
Installation Step 11.
• Depending on your door’s construction, you may
need additional mounting hardware for the door
bracket (Step 11).
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 17.
Safety Reversing
Sensor
Header
Wall
Safety
Reversing Sensor
Gap between floor
and bottom of door
must not exceed 1/4"
Access
Door
Wall-
mounted
Door
Control
Belt
Pulley Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope
& Handle
Door
Bracket
Curved
Door
Arm
Header
Wall
T-rail
Garage
Door
Belt
CLOSED POSITION
Motor Unit
ONE-PIECE DOOR WITHOUT TRACK
ONE-PIECE DOOR WITH TRACK
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 /4". 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
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT

6
SECURITY✚
Multi-Function
Remote Control Transmitter (2)
2-Conductor Bell Wire
White & White/Red
Trolley
Header Bracket
Belt
Curved Door
Arm Section
Safety Labels
and
Literature
Rail Brace (3)
T-rail
Center Section (2)
T-rail
End Section (2)
Straight Door
Arm Section
Hanging Brackets
UP
CEILING MOUNT ONLY
Multi-Function
Door Control Panel
Belt Cap Retainer
SECURITY✚
Keyless Entry
Door Bracket
Belt Pulley
Bracket
LOCK
LIGHT
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Safety Sensor
Bracket (2)
Model WD822KC only
Light Lens (2)
Your garage door opener is packaged in one carton
which contains 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. Hardware for assembly and installation is
shown on the next page. Save the carton and
packing material until installation and adjustment is
complete.
Carton Inventory

Hardware Inventory
Separate all hardware and group as shown below for the assembly and installation procedures.
7
Lock Washer
5/16" (4) Trolley Clip (1)
Lock Nut
1/4"-2 x7/16" (12)
Nut
5/16"-18 (4)
Washered Bolt
5/16"-18x1/2" (2)
(mounted in motor unit)
Carriage Bolt
1/4"-2 x1/2" (12) Master Link (2)
Trolley
Threaded Shaft (1)
Wing Nut
14"-2 (2)
Hex Bolt
5/16"-18x7/8" (4)
Carriage Bolt
1/4"-2 x1/2" (2)
Spring /Trolley Nut (1)
Nut 5/16"-18 (4)
Clevis Pin
5/16"x2-3/4" (1)
NOTICE
Handle
Insulated
Staples (3 )
Clevis Pin
5/16"x1" (1)
Dry Wall Anchors (2)
Hex Bolt
5/16"-18x7/8" (4)
Rope
Ring
Fastener (3) Lock Washer 5/16" (4)
Lag Screw
5/16"-9x1-5/8" (2) Rail Grease
Lag Screw
5/16"-18x1-7/8" (2)
Clevis Pin
5/16"x1-1/4" (1)
Screw
6ABx1-1/4" (2)
Screw 6-32x1" (2)
Self-Threading Screw
1/4"-14x5/8"
ASSEMBLY HARDWARE
INSTALLATION HARDWARE

8
ASSEMBLY STEP 1
Assemble the T-Rail and
Attach the Belt Pulley Bracket
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
1. Align the four T-rail sections on a flat surface
exactly as shown.Center sections are
interchangeable. Front and back sections are also
interchangeable for ease of assembly.
2. Insert the carriage bolts so the square
bolt necks seat in the square holes
in the T-rail sections and pass
through the round holes in the rail
braces. Make sure bolt necks are
seated in the square holes and rails
are aligned before you tighten lock
nuts. Improper assembly can cause
jerky trolley operation, noise and/or
nuisance door reversals.
3. Assemble lock nuts, ensure alignment
and tighten.
NOTE: If T-rail is not assembled exactly as shown,
trolley will not travel smoothly along length of rail or
it will hit against nuts.
4. Position the belt pulley bracket on the front end of
the T-rail as shown. Fasten securely with the
hardware shown.
NOTE: When tightening the bolts, be sure to keep
bracket parallel to the rail. Otherwise, the rail may
bow when the opener is operated.
T-RAIL BACK
(TO MOTOR UNIT)
T-RAIL RONT
(TO DOOR)
Belt pulley bracket
attaches to FRONT
END of T-rail T-rail
(End Section)
T-rail
(Center Section)
Carriage Bolt
1/4"-2 x1/2"
T-rail
(End Section)
Square Carriage
Bolt Hole
1/4" Lock Nut
Hex Bolts
5/16"-18x7/8"
Belt Pulley
Bracket
Bracket & Rail Must Be Aligned
Lock Washer
5/16"
Nut
5/16"-18
Lock Nut
1/4"-2
Carriage Bolts
1/4"-2 x1/2"
Hex Bolt
5/16"-18x7/8" Nut
5/16"-18
Lock Washer
5/16"
HARDWARE
SHOWN ACTUAL SIZE

9
ASSEMBLY STEP 2
Install the Trolley
• As a temporary stop, insert a screwdriver into the
hole in the front end of the T-rail.
• Slide the trolley assembly along the rail to the
screwdriver stop. NOTE: If trolley hits against any
nuts on the T-rail, the bolts and nuts were attached
from the wrong side and must be repositioned.
Review Assembly Step 1.
• Insert a 5/16"-18x7/8" hex bolt into the trolley stop
hole in the T-rail as shown. Tighten securely with a
5/16" lock washer and nut. This screw limits trolley
travel in the DOWN direction.
Trolley
Temporary Stop
Screwdriver
Hex Bolt
5/16"-18x7/8"
Trolley
Stop Hole
Lock Washer
5/16"
Nut
5/16"-18
ASSEMBLY STEP 3
Fasten the T-Rail to the Motor Unit
• Place the opener on packing material to protect
the cover. For convenience, put a support under
the belt pulley bracket.
• Remove the two 5/16"-18x1/2" washered bolts
mounted in the top of the motor unit.
• Align the holes in the back section of the T-rail
with the holes in the motor unit.
• Fasten the rail with the two washered bolts
previously removed. Tighten securely. Remember
to use only these bolts! Any other bolts will
cause serious damage to the opener.
• Insert a 5/16"-18x7/8" hex bolt into the cover
protection bolt hole in the T-rail as shown. Tighten
securely with a 5/16" lock washer and nut.
NOTE: This bolt prevents trolley over-travel. Keep a
2" minimum between the trolley and this bolt when
adjusting travel limits (see page 28).
USE ONLY THIS
TYPE AND SIZE
BOLT
Washered Bolts
5/16"-18x1/2"
T-Rail
(Back
Section)
Cover Protection
Bolt Hole
Nut
5/16"-18
Hex Bolt
5/16"-18x7/8"
Lock Washer
5/16"
Nut
5/16"-18
Lock Washer
5/16"
Hex Bolt
5/16"-18x7/8"
HARDWARE SHOWN ACTUAL SIZE
To avoid serious damage to opener, ONLY use bolts
mounted in top of motor unit.
WARNING
CAUTION
WARNING
WARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT

ASSEMBLY STEP 4
Install the Belt and Set the Tension
INSTALLING THE BELT
1. Drop the notched side of the trolley clip into the
retaining slot on top of the trolley (Figure 1).
2. Grasp the clip connector at the end
of the belt and slip it through the belt
pulley bracket from behind, around
the pulley and toward the trolley.
3. Fasten the belt clip connector to the
trolley clip with a master link:
• Push pins of master link bar
through holes in trolley clip and belt
clip connector.
• 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. With the trolley against the screwdriver,
dispense the belt along the rail and around
the motor unit sprocket. The sprocket teeth
must engage the belt (Figure 2).
5. Use the second master link to connect the belt
to the flat end of the trolley threaded shaft
(Figure 1). Check to make sure the belt is not
twisted.
6. Remove the screwdriver.
SETTING THE TENSION
1. Insert the trolley threaded shaft through the hole in
the trolley.
2. Hold the belt at the trolley shaft to avoid twisting as
you thread the spring/trolley nut by hand on the
shaft until finger tight against the trolley (Figure 3).
Do not use any tools.
3. Insert a screwdriver tip into one of the nut ring
slots and brace it firmly against the trolley.
(Figure 4).
4. 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 5).
This extends the spring for optimum belt tension.
1
Nut
Ring
Trolley
Threaded
Shaft
Nut Ring
Slots
Square
End
Motor unit
Sprocket
Belt
Pulley
Slip Belt Clip
Connector around
Pulley Bracket
from this direction
and attach to trolley clip
Trolley
Clip
Master Link
Clip-On Spring Master Link Cap
Trolley
Threaded Shaft
Master
Link Bar
Master
Link Bar
Pin Notch
Pin Notch
Belt
Clip Connector
igure 2
igure 4
Belt Clip
Connector
Trolley
Threaded
Shaft
Spring/Trolley Nut
Nut Ring Trolley Nut Ring Trolley
1" 1-1/4"
BE ORE A TER RELEASE
igure 5
igure 3
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
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
igure 1