Lift-master 98LM User Manual

Model 98LM

Motion Detecting Door Control Panel

OWNERS INSTRUCTIONS

FOR USE WITH GARAGE DOOR OPENERS
MANUFACTURED AFTER JANUARY 1, 1995.
This door control contains a motion detector
that will automatically turn on the light when
it detects a person entering the garage. This
feature can be easily turned off for extended
work light use.

Locate the door control within sight of the door at a minimum
height of 5 feet where small children cannot reach, and
away from all moving parts of the door and door hardware.

INSTALLATION

The door control is typically attached directly to the wall. For
pre-wired installations (as in new home construction) it can
be mounted to a standard single gang box. If installing the
door control adjacent to existing door controls be sure the
detector switch is accessible.

1. Disconnect power to the garage door opener.

2. Strip 1/4" (6 mm) of insulation from one end of the bell
wire and connect to the two screw terminals on the back
of the door control as follows: red/white wire to 1 and
white wire to 2.

NOTE: After installation, the green indicator light behind
the push bar cover will indicate proper connection.

3. Remove the push bar cover by gently prying off the top
edge with a screwdriver. Fasten with 6ABx1-1/4"
self-tapping screws (standard installation) or 6-32x1"
machine screws (pre-wired installation) as follows:

• (Standard Installation ONLY) Drill pilot holes and install

bottom screw, allowing 1/8" (3 mm) to protrude above
the wall surface.

• Position bottom of door control on screw head and slide

down to secure. Adjust screw for snug fit.

• Install top screw. Do NOT overtighten, you may damage

the plastic housing.

4. (Standard Installations ONLY) Run bell wire up wall and
across ceiling to motor unit. Use insulated staples to
secure wire to wall and ceiling in several places. Do NOT
pierce wire with a staple, this will create a short or open
circuit.

5. Strip 7/16" (11 mm) of insulation from the end of the bell
wire.

6. Connect bell wire to terminals as follows:

• Quick Connect Terminals: Red/white wire to red

terminal and white wire to white (Figure 1).

• Screw Terminals: Red/white to 1 and white to 2

(Figure 2).

7. Reconnect power to the garage door opener.

8. Replace the cover by inserting the top tabs and snapping
it into place. Test the wall control to ensure proper
operation.

NOTE: The automatic light feature will become functional
6-1/2 minutes after power is restored.

To prevent possible SERIOUS INJURY or DEATH from
electrocution:

• Be sure power is not connected BEFORE installing door control.

• Connect ONLY to 24 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing

garage door:

• Install door control within sight of garage door, out of reach of
children at a minimum height of 5 feet (1.52 m), and away from
all moving parts of door.

• NEVER permit children to operate or play with door control
push buttons or remote control transmitters.

• Activate door ONLY when it can be seen clearly, is properly
adjusted, and there are no obstructions to door travel.

• ALWAYS keep garage door in sight until completely closed.
NEVER permit anyone to cross path of closing garage door.

WARNING

OR

Figure 2

Figure 1

L

O

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K

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WARNING

STANDARD WALL MOUNT

To Replace
Insert Top
Tabs First

LOCK

Push Bar Cover

LIGHT

2-Conductor
Bell Wire

2

T

H

W

Door

1

ED

R

Control
Terminal
Screws

Door Control
Connections

Strip wire 7/16"

7/16" (11 mm)

2-Conductor
Bell Wire

2

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H

W

Door

1

D

E

R

Control
Terminal
Screws

LOCK

Lock
Button

Detector
Switch

Push Bar

LIGHT

Light Button

PRE-WIRED INSTALLATION

To Replace
Insert Top
Tabs First

ON
OFF

Push Bar
Cover

Push Bar

L

O

C

K

Lock

Button

Red GreyWhite

Light
Button

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H

T

To release wire, push in
tab with screwdriver tip

Opener Terminal Screws

24 Volt
2-Conductor
Bell Wire

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H

T

Quick-Connect
Terminals

Detector
Switch

Antenna

ON
OFF

AntennaOpener Panel

OPERATION

Door Control Push Bar: Press to open or close the door.

Press again to reverse the door during the closing cycle, or
to stop the door while it is opening.

Light Feature: Press the Light button to switch the opener
light on or off. When the door is opened or closed, the light
will remain on for 4-1/2 minutes. Press the Light button to
turn it off sooner. The Light button will not control the
opener light when the door is in motion. When using the
opener lights as working lights, we recommend that you
first disable the motion sensor. See Automatic Light
Override Feature, below.

When used with openers manufactured after
December 1, 1999, (check the date on the opener panel)
the 4-1/2 minute interval can be changed to 1-1/2, 2-1/2, or
3-1/2 minutes as follows: Press and hold the Lock button
until the light blinks (about 10 seconds). A single blink
indicates that the timer is reset to 1-1/2 minutes. Repeat
the procedure and the light will blink twice, resetting the
timer to 2-1/2 minutes. Repeat again for a 3-1/2 minute
interval, etc., up to a maximum of four blinks and 4-1/2
minutes.

Automatic Light Feature: The opener light will turn on
automatically when a person enters the garage. When a
person walks in front of the door control, the opener light
will come on for five minutes, then shut off. This feature
works by detecting body heat. It is more sensitive in front
of the door control than at its sides, and works better as a
person moves closer. It may not work in temperatures
around 100˚F.

To disable this feature, slide the Detector Switch on the
right side of the door control down (off).

Special note for older garage door openers: If this door
control is installed on an opener manufactured from
January 1, 1995 to December 1, 1999, the following
difference may apply: If the light is on when the opener is
actuated, the light may go off for a moment, then turn on
again as the detector senses you.

Automatic Light Override Feature: We recommend that you disable the motion sensor when using the opener lights as working lights. Otherwise, they will turn off automatically if you are working beyond the sensor’s range. Slide the Detector Switch on the right side of the door control down (off), then press the light button to control the lights.

© 2006, The Chamberlain Group, Inc.

114A2396D All Rights Reserved

Energy Saving Feature: This door control senses the
brightness inside the garage, and will not turn the light on if
it is already bright enough. If the light sensor turns on the
light when it is not needed or does not turn it on when it is
dark, the sensitivity can be adjusted. Remove the push bar
cover by gently prying off the top edge with a coin or
screwdriver. Underneath there is a dial below the green
light on the right side. Use a small screwdriver to turn the
dial by 1/4 turns: counterclockwise to make the light come
on, or clockwise to make the light go off. Replace the cover
by inserting top tabs and snapping into place.

Lock Feature: Designed to prevent operation of the door
from portable remote controls. However, the door will open
and close from the Door Control push bar and from the
Keylock and Keyless Entry accessories.

To activate: Press and hold the Lock button for 2 seconds.
The push button indicator light will flash as long as the lock
is on.

To turn off: Press and hold the Lock button again for
2 seconds. The indicator light will stop flashing. Normal
operation will resume. The Lock feature will also turn off
whenever the Smart button on the opener end panel is
activated.

This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.

FOR SERVICE DIAL OUR TOLL FREE NUMBER:
1-800-528-2817