User manual CHAMBERLAIN 771E INSTALLATION

[. . . ] When the light beam is interrupted during the closing process, the door stops and re-opens completely. This installation method is the same for vertically opening sectional doors and canopy doors. The CB3 control unit permits the connection of two pairs of light barriers (opening & closing). [. . . ] When the light beam is interrupted during the opening process, the door stops completely or stops until such time as the beam is no longer interrupted (depending on the given control unit and adjustment settings). The control units permit the connection of several pairs of light barriers. The sensors must be mounted securely to a solid surface and be located exactly opposite each other. Very important to note in this connection is that the slope or inclination of entrances be given due consideration. cable lengths in excess of 10m should be avoided. Light from a low sun or excessively thin cable can seriously restrict the range available. If two pairs of light barriers are mounted closely together (sliding door), the receiver/transmitter may not be located on the same side of the entrance as otherwise one transmitter lens would influence the two receiver lens. For the protection of infants and small children, the safety light barrier should not be installed higher than 200mm-250mm above the garage floor. ASSEMBLY/MOUNTING The power supply must be disconnected prior to assembling/mounting the safety light barrier. Align sensor such that the lens are located laterally to the door and point exactly at each other. Inside the garage, use insulated staples to fasten the cable to the wall and ceiling. Outdoors, only use cable approved for such applications and, if necessary, run it through an empty tube. High voltage and low voltage may not be run together through one cable as this may disrupt the sensors. Ensure that the sensors are sufficiently watertight and that the rubber gasket is used for cable connections. 5mm²) to the terminals as shown depending on the given control unit (figs a-h). Garage door openers: Select the model of your choice from the figs (a, b, c, d, e). [. . . ] Press the key on the remote control or the switch for opening the door. The garage door opener/door does not close when activated via the remote control if the light indicator in one of the sensors is flashing (which means that the sensor is incorrectly aligned or blocked by an obstacle). Consult a specialist in cases where the opener closes the door despite its path being blocked by an obstacle. [. . . ]