LCN 4840-3077EDA 689 Heavy-Duty AL Arm

LCN 4840-3077EDA 689 Extra Duty Arm AL offers a robust solution for accessible door operations, particularly in multi-door configurations. This aluminum extra duty arm is part of the 4840 Series, designed for manual opening applications, providing quiet, efficient, and reliable performance. The system is compatible with control boxes featuring an integral compressor or those utilizing an auxiliary air supply, ensuring flexibility in installation. This door operator is ideal for commercial settings, as it significantly reduces the cost per door leaf when multiple doors are involved. The standard package includes a plate-mounted closer, an extra duty arm, a metal cover, and a comprehensive wood and machine screw pack. Meeting ADA requirements in power mode, the LCN 4840 is non-handed and suitable for interior doors up to 4’6" and exterior doors up to 3’6". Installation requires either Door Loop-459 or Transfer Hinge-460 and includes options for standard or custom powder-coated finishes, with black end caps. Additionally, an optional plated finish for the cover, arm, and fasteners is available, enhancing durability and aesthetic appeal. With its commercial-grade design and features, the LCN 4840-3077EDA is a smart choice for enhancing accessibility in any building environment.

Extra Duty Arm AL

Extra Duty Arm, Aluminum

The 4840 Series is a pneumatic multi-door solution operator that provides easy access for people with disabilities.

Designed primarily for manual opening applications, the LCN 4840 Series is quiet, efficient and reliable. It requires control boxes with intregral compressor or control box using auxillary air supply. 

• Ideal for multi-door applications since cost per door leaf decrease significantly as the number of door leaves increases.
• Standard, plate mounted 4840 series closer shipped with extra duty arm, metal cover and a wood and machine screw pack.
• Meets ADA requirements (power mode).
• Installation requires use of either Door Loop-459 or Transfer Hinge- 460
• Non-sized cylinders for interior doors to 4’6” and exterior doors to 3’6”.
• Non-Handed
• Requires additional system components
• Standard or optional custom powder coated finish, end caps are black
• Optional plated finish on cover, arm, and fasteners

Resources

• 4840 Series Pneumatic Operators Cut Sheet
• Choosing the Right LCN Auto Operator
• LCN 4840 Series Installation Guide
• LCN 4840 Series Product Guide - Automatic Operators
• LCN Auto Operators Catalog
• LCN Closers & Auto Operators Installation Guide
• LCN Closers & Automatic Operators Parts Manual
• Von Duprin Finishes Chart