Dormakaba QDC111-689 Door Closer Grade 1 Adjustable

Product Description

The DORMAKABA QDC111-689 is a Grade 1 surface-mount door closer from the QDC100 series, built for commercial and heavy-use door applications. Constructed of cast aluminum, it delivers reliable controlled closing across a wide range of door weights and sizes thanks to its adjustable spring sizes 1 through 6. The unit ships with a Tri-Pack arm, giving installers flexibility to mount the closer in standard parallel arm, top jamb, or other configurations from a single package. The rounded cover carries a 689 painted aluminum finish. This closer is suited for both new construction and retrofit installations where a surface-mount, ADA-compliant solution is required.

The QDC111-689 is intended for commercial interior and exterior doors in residential, light commercial, and heavy commercial settings. Its broad spring size range makes it adaptable to a wide variety of door widths and weights without requiring a different closer body. The Tri-Pack arm arrangement reduces the need to stock multiple arm kits on the service van, making it a practical choice for service contractors and facilities maintenance teams who work across mixed door hardware environments.

Key Features

• Adjustable spring sizes 1-6 accommodate a wide range of door weights and widths
• Tri-Pack arm included supports multiple mounting configurations from one unit
• Cast aluminum body construction for durability in demanding applications
• Grade 1 BHMA rating — highest commercially recognized performance grade for door closers
• 689 painted aluminum finish for a clean, low-profile appearance
• Certifications include ANSI, BHMA, A156.4, A117.1, UL 10B, UL 10C, and UL/cUL Listed 3-Hour fire rating
• Surface-mount design supports retrofit applications without structural modification

Compatibility

Designed as a surface-mount replacement or new-installation closer compatible with standard commercial door frames. Accepts machine screws, self-reaming and tapping screws, sex bolts, and wood screws for broad substrate compatibility across wood, hollow metal, and aluminum door and frame types.

Installation Notes

Installation is typically performed by a licensed door hardware technician or general contractor familiar with ANSI/BHMA hardware standards. Power the door open-and-close cycle should be verified against local accessibility codes, including ADA requirements, before finalizing spring size adjustment. Confirm door and frame substrate type before selecting the appropriate fastener from the included hardware pack. Do not adjust hydraulic valves beyond the marked stops, as over-adjustment can void certifications and impair fire-rated door assembly performance.

Technical Specifications

• Spring Size Range: 1-6 (adjustable)
• Grade: Grade 1
• Mounting Type: Surface
• Arm Type: Tri-Pack
• Material: Cast Aluminum
• Finish: 689 Painted Aluminum (Aluminum Powder Coated)
• Certifications: ANSI, BHMA, A156.4, A117.1, UL 10B, UL 10C, UL/cUL Listed 3-Hour
• Fasteners Included: Machine Screws, Self-Reaming and Tapping Screws, Sex Bolts, Wood Screws

Standard Information

• Brand: DORMAKABA
• Manufacturer Part Number: QDC111-689