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  1. KNOWLEDGE BASE
  2. BEST Exits, Closers, and Hinges
  3. Exit Device FAQs

Exit Device FAQs

  • What is the part number for the dorma MLR Kit?
  • Can the MLR options be installed on Dorma 9000 series exit devices with cylinder dogging?
  • What should I do if my BEST/PHI/Precision Series 2000 MLR is beeping 4 times?
  • What should I do if my BEST/PHI/Precision 2000 Series MLR is beeping 2 or 3 times?
  • Did my BEST/PHI/Precision 2000 Series MLR calibration work?
  • What should I do if my BEST/PHI/Precision 2000 Series MLR is beeping 5 or 7 times?
  • Is Motorized Latch Retraction available on Apex 2000 Series Exit Devices that have Cylinder Dogging?
  • Cylinders Required for the 2110VI 4908 Device
  • Power Supplies That can be used with the MLR - motorized latch retraction
  • Strike Template Reference Table
  • Electrical Product Conversion Kits
  • Electrical Products Installation Instructions
  • MLR Retrofit Compatibility with 1000 Series PHI Devices
  • MLR - Motorized Latch Retraction FAQ's
  • MLR Mounting Screws - Part Number Reference
  • MLR Retrofit Compatibility by Device
  • ELR Humming Instead of Retracting - Troubleshooting Guide
  • Olympian FAQ's
  • Reliant 5000 FAQ's
  • Apex 2000 FAQ's
  • Door Prep For ELR Wiring
  • Fire alarm contact will not turn power supply on and off.
  • What is the part number for the backup battery for the PS161 and ELR150?
  • How do I convert a 4900 trim from 03 (night latch/storeroom) function to 08 (classroom) function?
  • Why is the touch bar not fully retracting the latch on the 2300 when it is depressed?
  • How do I determine what cylinder is needed with the PHI products.
  • What are the four wires on the ELR Power Supply?
  • Are there any directions on how to adjust the Precision surface vertical rods?
  • Is there a parts catalog for the Apex 2000?
  • Is there a wood template for the Apex 2000?
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BEST Exits Closers Hinges Commercial Hardware CONTACT
Switch™ Tech Precision 2000 Commercial Door Hardware Corporate Headquarters
6161 East 75th Street
Indianapolis, IN 46250 USA
Phone 855-365-2407
BEST Mechanical Precision 5000 Multifamily
BEST Electromechanical Precision Crossbar
BEST Software D4990
Omnilock Commerical Door Hinges
Non-Standard Product Request Form
BEST Door Closers


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