Which NFPA standard specifically deals with air conditioning and ventilating systems?

The NFPA standard that specifically addresses air conditioning and ventilating systems is NFPA 90A. This standard outlines the requirements for the installation of air conditioning and ventilation systems to ensure the safety and performance of these systems in various buildings. It focuses on aspects such as duct design, materials, and installation practices to prevent fire and smoke spread, thereby enhancing occupant safety and improving air quality.

Understanding NFPA 90A is crucial for professionals working in mechanical and HVAC engineering as it provides guidelines on how to handle ductwork and related components to minimize fire hazards. It also deals with how to integrate these systems with fire protection features in buildings, which is essential for compliance with safety regulations.

The other NFPA standards mentioned serve different purposes; for instance, NFPA 70 pertains to electrical installations, NFPA 75 addresses the protection of sensitive electronic equipment, and NFPA 101 focuses on life safety in building design and occupancy. These distinctions clarify why NFPA 90A is the correct choice for matters related to air conditioning and ventilating systems.