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4840 Series
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The 4840 Auto Equalizer™ is LCN’s pneumatically powered Multi-Door solution. This lowenergy automatic operator provides easy access for people with disabilities, the elderly, or the frail. Designed primarily for manual opening applications that occasionally require automatic opening.
 
Features & Benefits
  • Multi-Door Solution
  • Utilizes a 10,000,000 Cycle Heavy
  • Duty Door Closer
  • Quiet, Efficient & Reliable
  • Requires Control Boxes with integral compressor or control box using auxiliary air supply.
  • No Guard Rails/Safety Mats Required

The 4840 Series is UL and cUL listed and meets the provisions of ANSI Standards A117.1,A156.19, and the Americans with Disabilities Act.

Specifications

  • 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
Mounting
Mounting Available
Parallel Arm x
 
See catalog for additional details.
 
Arms
Arm Function* Available
Extra Duty 90°
Cush-N-Stop 90°
Spring Cush 90°
 
*See individual series for maximum manual opening.

Extra Duty Arm, 4840-3077EDA
Standard, non-handed parallel arm features forged solid steel main arm and forearm for potentially abusive installations.

CUSH-N-STOP Arm, 4840-3077CNS
Optional, non-handed parallel arm features forged solid steel main arm and forearm with stop in soffit shoe.

Spring CUSH Arm, 4840-3077SCNS
Optional, non-handed parallel arm for abusive applications features forged solid steel main arm and forearm with spring loaded stop in soffit shoe.
Finishes
  • Powder Coat
  • Plated
Cylinders
Cylinder Available
Non-Handed x
Non-Sized x
Power Operator x
 
Cylinder Only, 4841-3971
Standard, non-handed, cast iron cylinder.
 
Cylinder Assembly, 4841-3071
Standard, non-handed, cast iron cylinder and mounting plate.
 
Covers
  • Metal

Cover, 4840-72MC
Standard, non-handed metal cover with black end caps.

Installation Accessories
CUSH Shoe Support, 4840-30
Provides anchorage for fifth screw used with EDA and CUSH arms, where reveal is less than 3 1/16” (78 mm).
 
Blade Stop Spacer, 4840-61
Required to lower parallel arm shoe to clear 1/2” (13 mm) blade stop.
 
PA Shoe Adapter, 4840-418
Provides horizontal mounting surface for parallel arm shoe on single rabetted or flush frame.
 
CUSH Flush Panel Adapter, 4840-419
Provides horizontal mounting surface for parallel arm shoe on single rabetted or flush frame.
 
Door Loop Kit, 4840-459
Surface mounted, flexible metal loop transfers pressurized air via pneumatic tubing from frame to closer end cap. Extra caps allow tubing to run on frame surface or concealed in the frame.
 
Pneumatic Transger Hinge, 4840-460
Transfers pressurized air via pneumatic tubing from frame to door leaf for fully concealed installations. Preparation of a raceway is required from the hinge stile of the door to the top rail for concealment of the pneumatic tubing within the door leaf.