LCN 3133SE Sentronic Concealed Door Closer with Single Lever Arm Track - Powder Coat Finish

LCN 3133SE Sentronic Concealed Door Closer with Single Lever Arm Track - Powder Coat Finish

Professional Fire and Smoke Barrier Door Control Solution

The LCN 3133SE 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 with cast iron construction and is specifically designed for interior doors up to 4'0". The unit is UL listed for metal smoke barrier or labeled fire doors and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards.

Professional Features & Benefits

• Door Width Compatibility: Designed for interior doors up to 4'0" with concealed-in-door mounting configuration.
• Heavy-Duty Construction: Cast iron body design with 1-1/8" diameter piston provides exceptional durability for commercial fire door applications.
• UL Listed Fire Safety: UL listed for metal smoke barrier or labeled fire doors with ANSI/BHMA A156.15 and NFPA 101 Life Safety Code compliance.
• Dual-Function Operation: Functions as full rack-and-pinion door closer when hold-open is not engaged or electrical current is interrupted.
• Adjustable Hold-Open Force: Hold-open force is field-adjustable to accommodate various door weights and application requirements.
• All-Weather Reliability: All-weather fluid ensures consistent operation across temperature variations in commercial environments.
• Fire System Integration: Interfaces directly with fire alarm systems for automatic door release during emergency conditions.
• 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 electrical wiring to fire alarm system interface following manufacturer wiring diagrams and local electrical codes.
6. Adjust operational components including hold-open force for proper alignment, latching, and smooth operation throughout the full range of motion.
7. Test device operation including hold-open function and fire alarm release to verify proper function. Use momentary on/off switch board assembly for testing door release. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings with Fire Doors
• Educational Facilities Fire Safety Systems
• Healthcare Institutions Smoke Barrier Doors
• Multi-Tenant Residential Fire Doors
• Government and Municipal Buildings
• Industrial Facilities Fire Protection
• Hotels and Hospitality Fire Safety

Fire Safety Integration

The 3133SE Sentronic integrates seamlessly with existing fire and life safety systems, providing automatic door closure when electrical current is interrupted during fire conditions. The momentary on/off switch board assembly enables testing of door release function while providing over-voltage protection for system reliability.

Why Choose LCN Quality?

LCN Sentronic door closers deliver professional-grade reliability with cast iron construction and all-weather fluid rated for demanding commercial fire door applications. Backed by a 2-year limited warranty and UL listing for fire doors, these closers meet stringent NFPA 101 Life Safety Code requirements. Engineered for critical fire safety applications where dependable performance protects life and property.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog