LiftMaster HCT HCT501130 Manual - Page 21

SECONDARY ENTRAPMENT PROTECTION Secondary Entrapment Protection (Non-Contact Sensor) Mount Photo Beam Sensor at Recommended Height and Align Properly If an obstruction breaks the light beam while the door is OmniControl Surge S closing, the door will stop and reverse to full open position. Patent Pending Center Loop Safety Loop Exit F Loop Ke - + Strike Open Push Button Radio Receiver ® OmniControl Surge Suppressor P/N Q410 Patent Pending (LiftMaster Commercial Protector System shown) 3 4 GBA M/S Link Center Loop Safety Loop - Exit Fire Dept Strike Open Loop Key Switch Push Button + Radio Receiver Class 2 Supply 24 Volts DC 13 +24V 11 COMMON SENSING EDGE INPUT INFRARED BLACK or BROWN Emitter INFRARED WHITE or BLUE Receiver ® If you are going to use a non-contact sensor as a secondary entrapment protection, you should use a recognized component to comply with the revised UL325 intended to be used in class I or class II gate operator. See Accessories page for acceptable non-contact safety devices. 19