TM
Universal Radio Control
OWNERS MANUAL
Model 520LM
Receiver Only
Model 520-1LM
(With 1 Remote Control)
Model 520-2LM
(With 2 Remote Controls)
To comply with FCC/IC rules, adjustment or modification of receiver and/or
transmitter is prohibited, except for changing the code setting and replacing
the transmitter battery. THERE ARE NO USER SERVICEABLE PARTS.
NOTICE TO U. S. CONSUMERS:
Some states prohibit the service or repair of garage door
openers whch cannot be made to comply with the safety
standards contained in UL 325 (1988 revision). In order to
comply with both the letter and the spirit of these laws, this
universal radio control should not be used with any Lift-Master®,
Chamberlain®, or Sears Craftsman® garage door opener
manufactured prior to April 1, 1982. To find out if your
Chamberlain-made garage door opener was manufactured prior
to or after April 1, 1982, please call 1-800-528-9131 before
installing this universal radio control.
G
WARNING
Disconnect power to the garage door opener
before installing the receiver.
Transformer Model 85 may be required if your
garage door opener is a brand other than Lift-Master,
Chamberlain or Sears.
WARNING
NOTE: Models 520-1LM and 520-2LM are factory pre-
set with matching receiver and remote control
codes. If you purchase additional remote controls,
the receiver may be programmed to match the new
remote control code (up to 4 “smart” remotes and
one Keyless Entry Transmitter).
Children operating or playing with a garage door
opener can injure themselves and others. The
garage door could close and cause serious injury
or death. Do not allow children to operate the
push buttons or the remote control transmitters.
Install the receiver (and any additional push
buttons) out of the reach of children and away
from all moving parts of the door and door
hardware, but where the garage door is visible.
THE RECEIVER MAY BE INSTALLED IN ONE OF TWO
WAYS:
1. Mounted directly on the door opener with clips
provided as shown on page one.
A moving garage door could injure someone
under it. Activate the opener only when the door
is properly adjusted, you can see it clearly, and
there are no obstructions to door travel.
2. Attached to an inside wall of the garage with connecting
bell wire (not supplied) as shown on page two.
When installing two or more receivers in a garage,
position them at least 10 feet apart to prevent electronic
interference.
MOUNTING RECEIVER ON A COMMERCIAL OPENER
Fully extend antenna wire below bottom of case as shown.
OPENER
TERMINALS
Loosen the three terminal screws on the receiver
(labeled 1, 2 and 3). Insert one end of a mounting clip
under each terminal. Make sure the clips are positioned
to clear the receiver flange, as shown. Do not retighten
at this time.
To Outlet
Receiver
Terminals
Mounting
Clip #2
Mounting
Clip #3
Flange
Mounting
Clip #1
Loosen the three terminal screws on the opener used for
push button controls and radio power.
©
Leaving the push button bell wire in place, insert the
other ends of the mounting clips under the opener
terminal screws.
NOTE: If the number sequence of opener terminals
doesn't match the receiver, turn the receiver around
(so back is facing out) and complete the connection.
Retighten the terminal screws on opener and receiver.
Reconnect power to the opener. The receiver push bar
should light. If it does not, use Transformer Model 85.
Model 85
Transformer
Antenna Wire Fully Extended
MOUNTING ON RESIDENTIAL OPENERS
Use a 2 wire connection only. Attach mounting clips
to receiver terminals 1 and 2, and to the opener
terminals used for push button controls. Plug the
transformer into the receiver as shown, and into a
120 Volt outlet.
Page two contains wall mounting instructions and
service information as well as code setting
instructions.
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