Sec-1.5Section 1: Critical Installation InformationENTRAPMENT PROTECTION:The installation of a monitored fail safe external reversing device is required on all momentary contactelectronically operated commercial doors. If such a reversing device is not installed, the operator willrevert to a constant contact control switch for operation (Closing only).The Reversing Devices currently UL Approved are:• MillerEdge® ME and MT series monitored edge sensors used in combination with Timer-Close Module (TCM) expansion board. P/NOPABTCGX.• MillerEdge® ME and MT series monitored edge sensors used in combination with MillerEdge Interface Module OPAKMEIGX.S.(Direct connect through STB inputs.)• MillerEdge® Wireless (MEL) monitored edge sensor OPAKMMWE2.S. (Direct connect through STB inputs.)• ASO Sentir GF Series Monitored Sensing Edges used in combination with Edge Expansion Module (ESM) expansion board. P/N OPABESX.S• Residential Safe-T-Beam® Monitored Photocells - P/N 37220R (GST B-BX) and 38176R.S (includes extension brackets).• Series II Commercial Safe-T-Beam® Monitored Photocells - P/N OPAKPE2.S and OPAKPEN4GX.S (NEMA 4).• Monitored Retro-Reflective Photoeye - P/N OPGAKRPEN4X.S• Monitored MillerEdge Light Curtain -P/N OPAKMLC3.S & OPAKMLC6.SMonitored Sensing Edges are available in any door width.NOTE: DO NOT use take up reels in conjunction with the Monitored Sensing Edge system. Use Coil Cords Only.IMPORTANT INSTALLATION INFORMATION