Lock Functions Explained: Passage, Privacy, Storeroom, Classroom, Entrance and Office
Ordering a door lock? Here is what passage, privacy, entrance or office, storeroom and classroom locks do on each side of the door, Sargent and Schlage function codes with the ANSI numbers from their catalogs and manuals, and how the function sits in a Sargent model number.
LCN Door Closer Parts: How to Identify Arms, Covers and Plates
How to identify LCN door closer parts: where to find the series or model on the closer, how LCN numbers arms, covers, plates and shoes, which numbers differ between LCN documents, and how they appear in our product names.
Securitron EPT Template and Electric Power Transfers: EPT, EPTL, EPT-SC and CEPT
Links to the Securitron EPT, EPTL and EPT-SC templates and CEPT instructions, with the printed dimensions, the wire and current ratings from manufacturer documents, the hinges each unit is made for and how a power transfer differs from an electric hinge or door cord.
Door Handing Chart: LH, RH, LHR and RHR - How to Determine the Hand of a Door
Need the hand of a door for a lock, exit device or hinge? How manufacturers define LH, RH, LHR and RHR, what reverse bevel means, the other abbreviations you will see (LHRB, RRB, LR) and where the hand appears in our product names.
ABH Overhead Stop and Holder Templates: 1000, 4000, 9000 and Other Series
Laying out a door for an ABH 4024, 9024 or 1023? Here are ABH's current templates for the 1000, 1000A, 4000, 9000 and 9000A overhead stops and for other ABH series, with the door openings behind the size digit of the 1000, 4000 and 9000.
Von Duprin Chexit CX98/99 Manual: Installation Instructions and Wiring Diagram
A page-by-page guide to the Von Duprin electrical installation instructions for the CX98/99 and CX33A/35A Chexit delayed egress device: wiring diagram wire colors, electrical specifications, option switches, troubleshooting and a link to the full PDF manual.

