Chapter 1 Smoke control overview

Underground building smoke control

The smoke control objective for underground buildings is to contain and remove smoke from the alarm zone. The smoke control system fully exhausts the alarm zone and provides makeup air to replace the exhausted air.

Setup and zoning of the smoke detectors is part of the fire alarm system engineering effort. The fire alarm system signals the smoke control system to start automatic smoke control operations.

In NFPA 101 (NFPA 2003, Life Safety Code), chapter 11.7 states that an underground building with over 100 occupants must have an automatic smoke venting system. Chapter 14.3, for new educational occupancies, provides smoke zoning requirements. Chapter 12.4.3.3 states that automatic smoke control must be initiated when two smoke detectors in a smoke zone activate. Chapter 12.4.3.3 states that the system must be capable of at least 6 air changes per hour.

Smoke detection and system activation

The appropriate smoke detection and system activation approach depends on the specifics of the smoke control system and on the code requirements. Automatic activation has the advantage over manual activation. Automatic activation provides fast and accurate response. Each smoke control application has detection and activation requirements:

•Zoned smoke control

•Stairwell smoke control

•Elevator smoke control

•Atrium smoke exhaust

Note:

Smoke detectors located in HVAC ducts should not be the primary means of smoke control activation. Duct detectors have long response times and exhibit degraded reliability when clogged by airborne particles. However, a duct detector signal may be used in addition to a primary means of activation. For more information, refer to Tamura, G.T., Smoke Movement & Control in High-Rise Buildings.

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BAS-APG001-EN

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Trane BAS-APG001-EN manual Smoke detection and system activation, Underground building smoke control
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BAS-APG001-EN, Engineered Smoke Control System for Tracer Summit specifications

The Trane Engineered Smoke Control System is an advanced solution designed to enhance safety and efficiency in buildings by effectively managing smoke during emergency situations. Specifically tailored for integration with the Tracer Summit Building Automation System, the Trane Engineered Smoke Control System (BAS-APG001-EN) combines cutting-edge technologies with user-friendly features, empowering facility managers to maintain optimal air quality and ensure occupant safety.

One of the standout features of the system is its programmable logic capabilities, which allow for customized smoke management strategies based on building layout and operations. This flexibility ensures that smoke is effectively controlled, providing clear egress paths for occupants while maintaining a safe environment for emergency responders. The system is engineered to operate seamlessly with other building systems, including HVAC and fire alarm systems, enabling a cohesive response during smoke events.

The Trane Engineered Smoke Control System employs sophisticated detection technologies that monitor air quality and detect smoke in real-time. This proactive approach facilitates early intervention, allowing for rapid activation of smoke control measures. Additionally, the integration of variable speed fans ensures that smoke is moved efficiently out of critical areas, reducing the risk of smoke inhalation for building occupants.

One of the key characteristics of this system is its ability to provide reliable, redundant operation. With engineered backup systems in place, the reliability of smoke control measures is significantly enhanced, ensuring that they will function correctly even in the event of a power failure. This is especially critical in high-rise buildings or complex structures, where smoke control is vital to occupant safety.

User interface features included in the Tracer Summit system offer intuitive controls and monitoring capabilities, simplifying the management of smoke control operations. Facility managers can easily view system status, receive alerts, and make necessary adjustments through the user-friendly dashboard, enhancing operational efficiency.

The Trane Engineered Smoke Control System stands out as a premier solution for smoke management in contemporary building designs. By integrating sophisticated detection technologies, programmable logic, and reliable operation, it provides an essential layer of safety in creating environments that prioritize occupant protection. As buildings continue to evolve, Trane’s commitment to innovation ensures that its Engineered Smoke Control System remains a key component in modern fire safety infrastructure.
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