The update to the Brazilian Standard NBR 16.401 brought significant changes to air conditioning systems, covering thermal comfort, Indoor Air Quality (IAQ), and energy efficiency. Experts highlight that the new version establishes stricter requirements for system planning, sizing, and operation, aiming for greater safety and performance.
Among the main changes are the definition of ideal temperature parameters (22.5 °C to 25.5 °C), more precise air velocity control, and more detailed standards to prevent duct leaks. Additionally, the standard reinforces air renewal and filtration patterns, ensuring healthier environments, with minimum airflows of 27 m³/h per person in offices and 40 m³/h in hospitals.
ASBRAV and ABRAVA support the implementation of the standard, offering technical support and training. The sector celebrates the regulatory advancement, highlighting the introduction of a minimum Coefficient of Performance (COP) for systems, which helps reduce energy consumption.
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