LCN 3133SE Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm - Plated Finish

LCN 3133SE Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm - Plated 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 and cast iron construction for reliable performance in interior door applications up to 4'0". The unit functions as a full rack-and-pinion closer when hold-open is not engaged or electrical current is interrupted, and is UL listed for smoke barrier or labeled fire doors meeting ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards.

Professional Features & Benefits

• Door Size Compatibility: Designed for interior doors up to 4'0" with concealed-in-door mounting for clean aesthetics.
• Heavy-Duty Construction: Cast iron body design with 1-1/8" diameter piston provides exceptional durability for commercial applications.
• Fire Safety Integration: UL listed for smoke barrier or labeled fire doors with interface capability for fire alarm systems.
• 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.
• Professional Installation Features: Field-replaceable design with wood and machine screw pack for versatile mounting options.
• Code Compliance: Meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards for professional fire safety applications.
• Manufacturer Warranty: 2-year limited warranty provides added confidence and protection.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Verify electrical requirements and confirm door preparation meets manufacturer specifications for concealed-in-door mounting with track concealed in frame.
2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
3. Mount the closer body concealed in the door and install track concealed in the frame ensuring proper alignment and clearance.
4. Route and connect wiring according to manufacturer wiring diagrams for fire alarm system integration. Use appropriate wire gauge and connectors.
5. Configure hold-open force adjustment and operational settings per application requirements and door weight.
6. Restore power and test all functions including hold-open operation, current interruption release, and integration with fire alarm systems.
7. Complete final inspection using momentary on/off switch board assembly for testing door release function. Refer to manufacturer documentation for complete wiring diagrams and programming instructions.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Government and Municipal Buildings
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Fire and Smoke Barrier Door Systems

Why Choose LCN Quality?

LCN 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 designed to meet ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. Engineered for commercial applications where dependable fire safety performance and code compliance are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog