ENTRAPMENT PROTECTION
LIFTMASTER MONITORED
ENTRAPMENT PROTECTION (LMEP)
IMPORTANT INFORMATION ABOUT THE LIFTMASTER
MONITORED ENTRAPMENT PROTECTION DEVICES
A LiftMaster Monitored Entrapment Protection (LMEP) device is
required for most wiring types (refer to page 28). If a LiftMaster
Monitored Entrapment Protection device is not installed, constant
pressure to close will be required from the control station.
Refer to Accessories page for a complete list of LMEP devices.
Monitored Edge Sensor
mounted to the bottom
of door.
Monitored Photoelectric
Sensor 6" (15 cm) max.
above floor and from
the door.
Entrapment Protection
TYPICAL ENTRAPMENT PROTECTION DEVICE(S) OVERVIEW
20
WARNING
WARNING
To prevent possible SERIOUS INJURY or DEATH from a closing
door:
• Be sure power is NOT connected to the door operator BEFORE
installing the photoelectric sensor.
• The door MUST be in the fully opened or closed position
BEFORE installing the LiftMaster Monitored Entrapment
Protection device.
To prevent SERIOUS INJURY, DEATH, ENTRAPMENT, or
PROPERTY DAMAGE:
• Correctly connect and align the photoelectric sensor.
• Install the photoelectric sensor beam NO HIGHER than
6" (15 cm) above the floor.
AVER
• This is a required LMEP device for B2, TS, T, and FSTS wiring
types and MUST NOT be disabled. For D1, C2, and E2 wiring
the installation of an entrapment protection device is
A ERT SSEME
recommended.
• LiftMaster Monitored Entrapment Protection devices are for
use with LiftMaster Commercial Door Operators ONLY. Use
with ANY other product voids the warranty.
• If an edge sensor is being used on a horizontal slide door,
then place one or more edge sensors on both the leading and
trailing edge.
• If an edge sensor is being used on a vertically moving door,
then place edge sensors on the bottom edge of the door.
Invisible Light Beam
Protection Area
Monitored Photoelectric
Sensor 6" (15 cm) max.
above floor and from
the door.