LCN 4021-FL LH 689 Heavy Duty Top Jamb Door Closer AL

LCN 4021-FL LH 689 Heavy Duty Top Jamb Closer AL is engineered for robust performance in high-traffic environments. Designed specifically for institutional use, this fusible link arm door closer is left-handed and crafted from durable aluminum, ensuring longevity and reliability. The 4020 Series is recognized for its quick installation and impressive functionality, making it the ideal choice for both commercial and residential applications. This closer accommodates interior doors up to 4’6" and exterior doors to 3’6" with a non-sized cylinder. Its top jamb mounting on the push side allows for efficient use in various door configurations. Meeting ADA requirements, it promotes accessibility while maintaining a sleek, matte silver finish (689/US28) that complements any aesthetic. Additional features include a full plastic cover, a hold open function at 140 degrees, and optional custom powder coat finishes for those in corrosive environments. With a 30-year limited warranty, this Grade 1 closer is UL and cUL listed, ensuring compliance with ANSI Standard A156.4. The LCN 4021-FL is not just a door closer; it’s a commitment to quality and performance in every installation.

Heavy Duty Top Jamb Closer AL

Fusible Link Arm Door Closer, Left Hand, Aluminum

The 4020 is LCN's best performing top jamb mounted heavy duty surface door closer designed for institutional and other high traffic applications.

The 4020 Series is designed specifically for high traffic applications.

LCN's 4020 Series is their best performing heavy duty closer that is known for its fast and accurate installation.

• Standard 4020 series closer is shipped with regular arm, standard plastic cover, and self reaming and tapping screws. See the Options tab for options.
• Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”.
• Non-sized cylinder (4021) adjustable for interior doors to 4’6” and exterior doors to 3’6”.
• Closer mounts top jamb (push side), specify right or left swinging door.
• 4021 cylinder meets ADA requirements.
• Standard or optional custom powder coat finish.
• Optional plated finish on metal cover, arm and fasteners.
• Optional SRI primer for installations in corrosive conditions is available with powder coat only.
• The 4020 Series is UL and cUL listed with regular or fusible link arms for self-closing doors.
• Tested and certified under ANSI Standard A156.4, grade one.

Resources

• 4020 Series Surface Mounted Closers Cut Sheet
• LCN 4000 Series Catalog
• LCN 4010, 4020 & 4110 Door Closer w/ Fusible Link Arm Installation Guide
• LCN 4020 Series Cut Sheet
• LCN 4020 Series Installation Instructions
• LCN Closers & Auto Operators Installation Guide
• Von Duprin Finishes Chart