Chamberlain LiftMaster Professional 78LM Owner's Manual

WARNING
FOR USE WITH GARAGE DOOR OPENERS MANUFACTURED
CAUTION
AFTER JANUARY 1, 1995. To ensure proper functioning of
your opener, remove all old or previous push buttons/wall
control panels. Use only the enclosed door control for proper
operation.
Locate the door control within sight of the door at a minimum
height of 5 feet (1.5 m) 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.
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 indicator light behind the push
button cover will indicate proper connection.
3. Remove the push button 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 bottom tabs and snapping it
into place. Test the wall control to ensure proper operation.
Door Control Push Button: 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.
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 Learn button on
the opener end panel is activated.
114A2380E
OPERATION
© 2006, The Chamberlain Group, Inc.
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 (1.5 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.
Figure 1
Terminal
Screws
RED WHT
Bell Wire
Strip wire 7/16" (11 mm)
7/16" (11 mm)
Figure 2
Terminal
Screws
RED WHT
Bell Wire
FOR SERVICE DIAL OUR TOLL FREE NUMBER:
1-800-528-2817
All Rights Reserved
Models 78LM and 78LMC
WARNING
Multi-Function Door Control
OWNERS INSTRUCTIONS
WARNING
Push Button
Light
Button
Lock
Button
Door Control To release wire, push in
Connections tab with screwdriver tip
Red White Grey
OR
Opener Terminal Screws
Push Button
Lock Light
Opener Panel
Button Button
Quick-Connect
Terminals
Antenna
Antenna