Chamberlain 550TV, TRUE, 450-9, 450GM, 550-6 User Manual

THE CHAMBERLAIN GROUP, INC.

A Unit of Duchossois Industries, Inc.

845 Larch Ave., Elmhurst, Ill. 60126

Owners Manual

Garage Door Opener

ALL MODELS IN ARE BOLD ARE DELUXE (2 LIGHTS)

MODEL NUMBERS

550 550-9 550-6

450 450-9 450-6 140GM

350 350-9 350-6

240 240-9 240-6 500TV
150 150-9 150-6 250TV
140 140-9 140-6 140TV

250-9TV 140-6TV
140-9TV

550-9TV

500-9TV 250-6TV

450GM

550TV

550-6TV

500-6TV

FEATURES OF YOUR OPENER

1. Opener Lights: Turn on and off automatically with 4-1/2

minute illumination for your safety and convenience. Provide
constant LIGHT when Light Switch is ON.

2. Safety System: Independent up and down force adjustment.
The door REVERSES automatically when obstructed in DOWN
direction. The door STOPS when obstructed in UP direction.

3. Emergency Disconnect: Pull cord disconnect permits manual
door operation.

4. Automatic Reconnect: Trolley halves reconnect for automatic
operation when opener is energized after emergency disconnect.

SPECIFICATIONS

MOTOR

Type........................................Permanent split capacitor

Speed......................................1500 rpm

Volts........................................120 Volts AC - 60 Hz. Only

Current....................................4.5 amperes

DRIVE MECHANISM

Gears......................................16:1 worm gear reduction

Drive........................................Roller chain with two-piece trolley on

steel Tee-rail.

Length of travel........................Adjustable to 7 1/2 feet

Travel rate ..............................6 to 8 inches per second

Lamp.......................................On when door starts to travel, off 4 1/2

minutes after stop. Also separate
LIGHT Switch.

Door linkage............................Adjustable door arm. Pull cord

trolley release.

5. Motor Power: Permanently lubricated motor with automatic
reset.

6. Digital Radio Controls: Codes can be easily changed by the
owner.

7. Easy Limit Adjustment: Limits of door opening and closing
adjusted by turning screws without removing chassis cover.

8. Lock Switch: Prevents operation of opener from transmitter.
When LOCK Switch is ON, the opener can be operated in the
UP direction ONLY, from the Wall Control or optional Key
Switch and Keyless Entry accessories, (See below).

SAFETY

Personal..................................Push button and automatic reversal in

down direction. Push button and
Automatic stop in UP direction.

Electronic................................Independent UP and DOWN force

adjustment screws.

Electrical.................................Motor overload protector & low voltage

push button wiring.

Limit device.............................Circuit actuated by limit nut

Limit Adjustment.....................Screwdriver adjustment on side panel

Start circuit .............................Low voltage push button or radio

control.

DIMENSIONS

Length (overall).......................128 inches

Headroom required.................2 inches

Hanging weight.......................32 pounds

4

Adjustment

STEP 1

LIMIT ADJUSTMENT settings regulate the points at which the
door will stop when moving up or down.

NOTE: Door STOPS in the UP direction if anything interferes
with door travel. Door REVERSES in the DOWN direction if
anything interferes with the door travel (including binding or
unbalanced doors).

PROCEDURE: To operate opener, press wall push button. Run
the opener through a COMPLETE TRAVEL CYCLE. Limi
adjustments are not necessary when the door opens and closes
completely and doesn't reverse unintentionally in the fully closed
position.

The following chart outlines adjustment procedures. Run the opener through a COMPLETE TRAVEL CYCLE AFTER EACH
ADJUSTMENT. NOTE: REPEATED OPERATION OF THE OPENER DURING ADJUSTMENT PROCEDURES MAY CAUSE MOTOR
TO OVERHEAT AND SHUT OFF. SIMPLY WAIT 15 MINUTES AND TRY AGAIN. Read chart carefully before proceeding to Step 2. Use a

screwdriver to make limit adjustments.

Adjust UP and DOWN Limits

Left Side

Panel

Limit

Adjustment

Screws

Adjustment Label

LIMIT ADJUSTMENT CHART

IF DOOR DOES NOT OPEN COMPLETELY

BUT IT OPENS AT LEAST FIVE FEET

Increase UP travel. Turn the UP LIMIT adjustment screw

clockwise. One turn equals 2" of travel.

If door does not open at least 5 feet: adjust OPEN FORCE as
explained in Step 2.

IF SECTIONAL DOOR DOES NOT CLOSE COMPLETELY

Increase DOWN travel. Turn down limit adjustment screw
counterclockwise. One turn equals 2" of travel.
If the door still will not close completely, the header bracket is
positioned too high. Repeat Step 1, page 7.

IF ONE-PIECE DOOR DOES NOT CLOSE COMPLETELY

Increase DOWN travel. Turn down limit adjustment screw
COUNTERCLOCKWISE One turn equals 2 inches of travel.

IF OPENER REVERSES IN FULLY CLOSED POSITION

Decrease DOWN travel. Turn down limit adjustment screw
clockwise. One turn equals 2" of travel.

IF DOOR REVERSES WHEN CLOSING AND THERE

IS NO INTERFERENCE TO TRAVEL CYCLE

Test door for binding: Pull emergency release handle. Manually

open and close door. If door is binding, call a door serviceman. If
door is not binding or unbalanced, adjust CLOSE FORCE. See
Step 2.

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