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15
Installation
Install the Light Curtain (Not Provided)
7
The following are general instructions for a typical installation, refer to the
complete instructions included with the Light Curtain.
The plug-in power supply accessory (model 100MAPS) is required to power the
Light Curtain. LiftMaster Light Curtain (Model LC-36A) is an ancillary entrapment
protection device designed with 8 optical sensors that form 22 total invisible light
beams which create a cross-pattern or netting effect for maximum protection against
entrapment. If an obstruction breaks any light beam while the door is closing, the
operator will stop and reverse to the full open position. The Light Curtain Transmitter
must be installed facing the Light Curtain Receiver across the entrapment zone, 12"
(30.5 cm) above the primary monitored entrapment protection device. The minimum
installation width is 3 ft. (.91 m) and the maximum width is 33 ft. (10 m).
NOTE: Ensure that no part of the door, door tracks, springs, hinges, rollers, cords or
other hardware interrupts the light beam while the door is closing.
INSTALLATION
1. Fasten the mounting brackets loosely to both Light Curtains with the screws
provided.
2. Measure a minimum of 12" above the safety reversing sensors. Mark this
location. The Light Curtain must be installed above this point.
3. Hold the Light Curtain up to the desired mounting location with the cable end
pointing upward. Secure the bottom mounting bracket to the mounting surface.
The mounting brackets must be securely fastened to a solid surface such as a
wall framing.
4. Make sure the Light Curtain is level and secure the upper mounting bracket to
the mounting surface.
5. Tighten the screws to secure the Light Curtain to the mounting bracket.
6. Secure the other Light Curtain to the opposite side of the door following steps
2 - 5, making sure they are aligned.
WIRING
NOTE: Complete all wiring of the light curtain to the operator BEFORE adding power
to ensure the light curtain is not damaged.
Transmitting Light Curtain:
• White Wire to white terminal on door operator
• Black Wire to gray terminal on door operator
Transmitting and Receiving Light Curtains:
• Brown Wire (+) to White/Black on power supply
• Blue Wire (-) to Black on power supply
Black
White
12" (30.5 cm) minimum above
the safety reversing sensor
Brown (+)
Blue (-) Black
Black/White
Plug-In Power
Supply
Transmitting Light
Curtain
Receiving Light
Curtain
Light
Curtain
Nylon
nut
Mounting
bracket
Screw with
nylon washer
To prevent possible SERIOUS INJURY or
DEATH from a closing door:
• Be sure to DISCONNECT POWER to
the operator BEFORE installing the
Light Curtain.
• The door MUST be in the fully opened
or closed position BEFORE installing
the Light Curtain.
• Correctly connect and align the Light
Curtain transmitter and receiver.
• The Light Curtain is for use with
LiftMaster Commercial Doors. Use
with ANY other product voids the
warranty.
• DO NOT use this product for the
protection of dangerous machinery
or in explosive atmospheres or
radioactive environments. Use ONLY
specific and approved types of devices
for such applications.
• The Light Curtain MUST be installed
ONLY by authorized and fully trained
personnel.
• LiftMaster Monitored Entrapment
Protection devices are required in
addition to the Light Curtain. The Light
Curtain may NOT be used as the sole
entrapment protection device for ANY
entrapment zone.
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