LCN 3134SE Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm - Plated Finish

LCN 3134SE Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm - Plated Finish

Professional Fire and Smoke Barrier Door Control Solution

The LCN 3134SE Sentronic is a concealed-in-door closer/holder designed to provide single-point hold-open functionality for fire and smoke barrier doors. This professional-grade door closer features a 1-1/8" diameter piston, cast iron construction, and UL listing for smoke barrier or labeled fire doors. The single lever arm track design is specifically engineered for interior doors up to 4'0" and integrates seamlessly with existing fire and life safety systems while meeting ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards.

Professional Features & Benefits

• Door Compatibility: Designed for interior doors up to 4'0" with concealed-in-door mounting and track concealed in frame for clean aesthetics.
• Heavy-Duty Construction: Cast iron body design with 1-1/8" diameter piston provides reliable operation and long-term durability in commercial applications.
• Fire Safety Integration: UL listed for smoke barrier or labeled fire doors with automatic release when current is interrupted, ensuring compliance with fire safety protocols.
• Adjustable Hold-Open Force: Field-adjustable hold-open mechanism allows customization for specific door weight and application requirements.
• All-Weather Performance: All-weather fluid ensures consistent operation across temperature variations and environmental conditions.
• Professional Installation Features: Field-replaceable design with wood and machine screw pack included for versatile mounting options.
• Code Compliance: Meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards with cUL listing for self-closing doors without hold-open.
• Manufacturer Warranty: 2-year limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as this product is handed for right- or left-swinging doors.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for concealed installation.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for concealed mounting.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications using provided wood and machine screw pack.
5. Connect wiring to fire alarm system interface according to manufacturer wiring diagrams and local electrical codes.
6. Adjust hold-open force and operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
7. Test device operation including hold-open function, automatic release, and momentary on/off switch board assembly to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose LCN Quality?

LCN 3134SE Sentronic door closers deliver professional-grade reliability with cast iron construction and UL listing for demanding fire safety applications. Backed by a 2-year limited warranty and engineered to meet ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. Designed for commercial applications where dependable fire safety compliance and smooth door operation are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog