Adams Rite 8420MLR-37248 Mortise Exit Device

Adams Rite 8420MLR-37248 Mortise Exit Device offers a Grade 1 Life Safety solution designed specifically for narrow stile aluminum applications. This exit device features motor latch retraction and electric dogging, ensuring seamless operation for high-traffic environments. With a sleek, unobtrusive design, the 8420MLR is easy to install, making it an ideal choice for both commercial and residential settings. The patented "Starwheel" bolt interlocks the door to the frame, enhancing security when the door is closed. This innovative feature, combined with a pushbar made from durable extruded aluminum, provides reliable functionality and longevity. The device accommodates openings of 48 inches and is adjustable in height, ensuring versatility for various door sizes. Non-handed and field-reversible, the 8420MLR simplifies installation while supporting standard door thicknesses of 1-3/4 inches up to 2-1/4 inches. The projection measures 2-15/16 inches when fully extended, and it offers electric dogging options for added convenience. Designed to meet ANSI/BHMA standards, this exit device is backed by a five-year limited warranty, ensuring peace of mind for building professionals and homeowners alike. Choose the Adams Rite 8420MLR-37248 for a dependable exit solution that prioritizes safety and efficiency.

Mortise Exit Device

Grade 1 Life Safety Narrow Stile Mortise Exit Device, Motor Latch Retraction, Electric Dogging, Narrow Stile Pushpad , For Aluminum Applications, 48 In., 1-1/8 In. Backset, Dark Bronze Anodized Aluminum Finish

The 8400 Series is designed for narrow stile aluminum applications that require a life-safety exit device with mortise locking solution.

Clean, unobtrusive design. Easy to install.

Patented "Starwheel" bolt interlocks door to frame, which is a unique feature for exit devices. The "Starwheel" bolt comes into play when the door closes. The interlocking noseguard and starwheel bolt close around the strike. The deadlocking slide springs over, locking the starwheel bolt to the strike. When the pushbar is depressed, the deadlocking slide moves back, allowing the door to unlock from the strike. 

• Materials: Pushbar made of extruded aluminum, clad or anodized in a variety of finishes.
• Handing: Device is non-handed. Lever Entry Trim is field reversible.
• Pushbar Length: Standard sizes: dimensioned for 30”, 36”, 42”, and 48” openings. Standard width bars can be field cut to the next smallest opening width.
• Bar Height: Standard model adjusts from 30” to 44”.
• Door Height: Standard model fits up to 8 ft door, with bar height at 40”– 44”. For doors up to 10 ft. Tall Door Kit available separately: 8055 Tall Door Kit for 8100 or 3055 Tall Door Kit for 3100.
• Door Thickness: Suits 1-3/4” standard, up to 2-1/4”.
• Stile Width: 3100 – Minimum 3-3/4”. Door construction may require additional stile width to meet fire ratings and provide adequate strength. 8100 – Minimum 3-3/4”.
• Projection: 2-15/16” when fully projected, 1-15/16”when dogged.
• Dogging: Standard dogging with hex key or optional cylinder dogging for 8100 Series only. Electric dogging also available for 3100 and 8100 Series.
• Fasteners: Standard self-tapping screws. Optional Sex Bolt Kits 26-0584 (two required per device). Specify finish.
• Cylinders (available separately): See CYLINDERS for cylinder make, thumbturn and trim ring information.
• Cylinder x Fixed Pull: (ANSI/BHMA Function 03): Accepts any standard Rim cylinder.
• 3080 Entry Trim (ANSI/BHMA Functions 08, 09): Accepts any standard diameter Mortise cylinder with MS cam. Accommodates cylinder lengths from 1” to 1-1/4”. (Available separately)
• Warranty: Five year limited.

Resources

• 8000 Series Exit Device Dogging Retrofit Kit Assembly Installation Instruction
• 8000 Series Exit Devices Cut Sheet
• 8000 Series Exit Devices;3000 Series Exit Devices Cut Sheet
• 8000/3000 Series Exit Devices Catalog
• 8000A, 3000A Alarm Exit (Hardware Power Version) Operating Installation Instructions
• 8066 Entry Function Installation Instructions
• 8099M Dummy Push Bar for Aluminum & Glass Door Installation Instructions
• 8100 Exit Device Wood or Hollow Metal Door with Hollow Metal Frame Installation Instructions
• 8100 Exit Device for Wood Door and Wood Frame Installation Instructions
• 8200 Exit Device for Narrow Stile Glass Door Installation Instructions
• 8400 Mortise Exit Device Installation Instructions
• 8500 Exit Device for Hollow Metal Door & Frame Installation Instructions
• 8600 Exit Device Installation Instructions
• 8700 Rim Exit Device for Wood or Hollow Metal Door Installation Instructions
• 8800 Rim Exit Device for Aluminum Door Installation Instructions