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A2.5-3.2.4 Acoustic considerations for outdoor mechanical equipment. Outdoor mechanical equipment includes cooling towers, rooftop air handlers, exhaust fans, fans located inside buildings with openings on the outside of the building, and other equipment. Special acoustic considerations for the building envelope in residential health, care, or support facility areas near such equipment may be required to mitigate noise. The effects of mechanical equipment noise on adjacent properties should also be considered, with attention to adjacent land uses and jurisdictional noise limits.
For requirements for outdoor mechanical equipment and noise and vibration mitigation, see Section 2.5-8.2 (Site Exterior Noise) and Section 2.5-8.7 (Design Criteria for Building Vibration).
Outdoor mechanical equipment shall not produce sound that exceeds daytime and nighttime noise limits at neighboring properties as required by local ordinance.

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