Sound attenuator designed for air handling units

January 15, 2019 | Johnson Controls

This innovative, patent-pending silencer delivers comparable performance levels in half the space of a traditional three-foot duct silencer. The product is optimized to target specific frequencies of sound generated by air handling units (AHUs).

This is the first silencer developed specifically for AHUs. These devices are exclusive to YORK AHUs and can be validated to meet the performance claims of Air Conditioning Heating and Refrigeration Institute (AHRI) Standard 260.

“This groundbreaking product gives our customers a competitive level of sound attenuation while significantly reducing the AHU footprint,” said Paul Bauch, acoustics engineer, Johnson Controls. “It’s ideal for installations where sound intrusion could be an issue, such as schools, hospitals and offices.”

The bidirectional silencer offers superior sound insertion loss both upstream and downstream of the fan while minimizing flow noise. The device also produces minimal pressure drop to improve overall system efficiency by reducing energy consumption and lowering total cost of ownership (TCO). The device can be further optimized when paired with other YORK AHU sound attenuation technologies.

About Johnson Controls

Johnson Controls is a global diversified technology and multi-industrial leader serving a wide range of customers in more than 150 countries. Our 120,000 employees create intelligent buildings, efficient energy solutions, integrated infrastructure and next generation transportation systems that work seamlessly together to deliver on the promise of smart cities and communities. Our commitment to sustainability dates back to our roots in 1885, with the invention of the first electric room thermostat. We are committed to helping our customers win and creating greater value for all of our stakeholders through strategic focus on our buildings and energy growth platforms. For additional information, please visit or follow us @johnsoncontrols on Twitter.

About Johnson Controls Building Technologies & Solutions

Johnson Controls Building Technologies & Solutions is making the world safer, smarter and more sustainable – one building at a time. Our technology portfolio integrates every aspect of a building – whether security systems, energy management, fire protection or HVACR – to ensure that we exceed customer expectations at all times. We operate in more than 150 countries through our unmatched network of branches and distribution channels, helping building owners, operators, engineers and contractors enhance the full lifecycle of any facility. Our arsenal of brands includes some of the most trusted names in the industry, such as Tyco, YORK, Metasys, Ruskin, Titus, Frick, PENN, Sabroe, Simplex and Grinnell. For more information, visit or follow @JCI_Buildings on Twitter.

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