Chamberlain CPS-OPEN4 Manual

To prevent possible SERIOUS INJURY or DEATH from a closing door:
• Be sure to DISCONNECT POWER to the operator BEFORE installing the photoelectric sensor.
• The door MUST be in the fully opened or closed position BEFORE installing the LiftMaster
• Correctly connect and align the photoelectric sensor.
• Install the photoelectric sensor beam NO HIGHER than 6" (15 cm) above the fl oor.
• LiftMaster ® Monitored Entrapment Protection devices are for use with LiftMaster
warranty.
• Entrapment protection devices MUST be installed per the operator owner's manual for each Entrapment Zone.

APPLICATION

LiftMaster ® Protector System model CPS-OPEN4 is a monitored entrapment protection device for use with sectional and rolling doors. This device is
compatible with LiftMaster Heavy, Standard, and Medium Duty Logic (post 2010), FDC, FCL, FDOA, FDOB, and Egress Commercial Door operators. This
device may be installed in areas exposed to rain or moisture. These images in this document are for reference only and your product may look different.

SPECIFICATIONS

Power Consumption: Max. 50mA
Supply Voltage: 6 to 40 Vdc
Operating Temperature: -13°F to 165°F (-25°C to 73°C)
NEMA4 rating

CARTON INVENTORY

Photoelectric sensors (transmitter and receiver), mounting brackets (2), hardware, and instructions
LIFTMASTER ® PROTECTOR SYSTEM

IMPORTANT INFORMATION ABOUT THE PHOTOELECTRIC SENSOR

Be sure power to the operator is disconnected.
When properly connected and aligned, the photoelectric sensor will detect an obstruction in the path of its beam. If an obstruction breaks the beam while
the door is closing, the operator will stop and typically reverse to the full open position.
The transmitter must be installed so that it faces the receiver across the entrapment zone, no more than 6" (15 cm) above the fl oor for a door. Minimum
Installation width of 3 feet (.91 m) and maximum width of 45 feet (13.7 m).
The brackets must be securely fastened to a solid surface such as the wall framing. If installing in masonry construction, add a piece of wood at each
location to avoid drilling extra holes in masonry if repositioning is necessary.
The invisible light beam path must be unobstructed. No part of the door (or door tracks, springs, hinges, rollers or other hardware) may interrupt the
beam while the door is closing.

ENTRAPMENT ZONES

Make sure the brackets are aligned so the photoelectric sensors will face each other across the entrapment zone as illustrated.
ENTRAPMENT ZONE FOR COMMERCIAL DOOR APPLICATION
6" (15 cm) max. above the
floor and away from the door
Entrapment Zone
Photoelectric
Sensor
Facing the door from inside the building
(Installation procedures are the same for all door types)
LIFTMASTER
® Monitored Entrapment Protection device.
® Commercial Door. Use with ANY other product voids the
Invisible Light Beam
Protection Area
1
®
PROTECTOR SYSTEM
MODEL CPS-OPEN4
Photoelectric
Sensor
6" (15 cm) max. above the
floor and away from the door