Page 1
Chamberlain
Built for Good
“THE PROTECTOR” SYSTEM
MODEL G70 OBSTRUCTION SENSOR
INSTRUCTIONS
“The Protector” is the latest addition to the safety features already built into the Chamberlain line of garage
door openers. An invisible light beam passes between the detector and emitter. A signal will be transmitted to
the opener if an obstruction breaks the beam. Upon receiving this signal, the opener will respond by causing a
closing door to open or by preventing an open door from closing. “The Protector has no effect on a door
that is closed or is opening.
Install the Protector after the garage door opener installation has been completed.
THIS SAFETY ALERT SYMBOL MEANS CAUTION PERSONAL SAFETY OR
PROPERTY DAMAGE INSTRUCTION. READ THESE INSTRUCTIONS
CAREFULLY.”
THE PROTECTOR MUST BE INSTALLED AND OPERATED IN STRICT
ACCORDANCE WITH THE FOLLOWING INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY OR PROPERTY DAMAGE.
BEFORE INSTALLING THE PROTECTOR, BE SURE TO COMPLY WITH ALL GARAGE
DOOR OPENER INSTALLATION AND ADJUSTMENT REQUIREMENTS AS PROVIDED IN
YOUR OWNERS MANUAL.
DISCONNECT POWER TO GARAGE DOOR OPENER BEFORE INSTALLING THE
PROTECTOR
TO PROTECT SMALL CHILDREN, INSTALL THE PROTECTOR NO HIGHER THAN 4 TO 6
INCHES ABOVE GARAGE FLOOR
FASTEN HANDY HINTS TO WALL AT EYE LEVEL ABOVE ONE OF THE BRACKETS.
DISCONNECT POWER TO GARAGE DOOR OPENER
(Figure 2.) The Protector must be installed so the path of the light beam is not
obstructed by the garage door, door tracks, springs, hinges, rollers or any other part
of the door mechanism. It may be necessary to add a piece of wood to the wall at
mounting locations to insure proper clearance (or to install sensors on masonry
wall construction).
STEP 1
PROCEDURE: (Figures 1 & 2). Install emitter and detector inside garage on each
side of garage door. Sensors must be positioned at the same height
(approximately 4” to 6” above the floor). Directional arrows on the sensor labels
must point toward each other and be horizontal to the floor.
NOTE: Detector should be installed on the “shade” side of the garage, away from
the sun’s direct rays.
(Figure 2). Drill 3/16” pilot holes. Fasten brackets to walls with 1/4”x1-1/4” lag
screws.
BEFORE INSTALLING THE PROTECTOR.
TO PROTECT SMALL CHILDREN INSTALL PROTECTOR NO
HIGHER THAN 4 TO 6 INCHES ABOVE FLOOR
NOTE: Slotted holes in bracket allow for positioning. Be sure label
arrows are horizontal with the floor before tightening screws
Run the yellow/yellow-green striped wires attached to the detector up and over the
door to the terminals on the emitter. Attach wires to emitter terminals by color as
shown on the label. Use insulated staples to fasten wires to walls surrounding
garage door.
Page 2
STEP 2
(Figure 3). Run the black/white 2-conductor wires attached to the detector
up the wall and across the ceiling to opener terminals. Connect wires to
terminals by color as shown on the label.
NOTE: If your opener is equipped with a Lock Switch, be sure it is
OFF before proceeding to Step 3.
STEP 3
(Figure 4). Plug in the garage door opener to restore electric power.
Small red lamp in detector should GLOW.
If red lamp FLASHES after installation, check bracket position (see Step
1). Arrows should be horizontal to the floor. If brackets are installed
correctly, position of detector within mounting bracket may require
adjustment. Loosen detector case mounting screw and rotate detector. If
red lamp GLOWS, retighten mounting screw. Alignment is correct. If light
continues flashing after adjustment, check for:
1. Dirt on the detector lens or sunlight shining directly into the lens,
causing interference.
2. Shorts in yellow/yellow-green striped wires. These can occur under
staples or at screw terminals.
3. Incorrect wiring of detector to emitter.
If no light glows in the detector lamp after installation, check for:
1. Electric power to the opener.
2. Shorts in the black/white wires. These can occur under staples or at
screw terminal connections.
3. Incorrect wiring between detector and opener.
STEP 4
TEST THE PROTECTOR OBSTRUCTION SENSOR:
Place an obstacle in the path of the invisible light beam between detector
and emitter as the garage door is closing. The door must reverse and
return to full open position. NOTE: The garage door opener will not
respond to a CLOSE command if the red light in the detector is
flashing.
The garage door opener can be closed manually by pulling down on the
emergency release rope and handle connected to the trolley. (See the
Protector Handy Hints Label).
FASTEN THE HANDY HINTS TO WALL AT EYE LEVEL
ABOVE A SENSOR.
CHAMBERLAIN SERVICE IS ON CALL
OUR LARGE SERVICE ORGANIZATION SPANS AMERICA.
INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE NUMBER: 1-800-528-9131
HOURS: 7:00 a.m. to 3:30 p.m. (Mountain Std. Time)
MONDAY through Saturday
For professional installation, parts, and service; contact your local CHAMBERLAIN/LIFTMASTER dealer. Look for him in
the Yellow Pages or call our Toll Free number for a list of dealers in your area.
114A801
Loading...