Recently, UL was approved for NOx testing under the South Coast Air Quality Management District’s Laboratory Approval Program (SCAQMD LAP) for SCAQMD Rules 1111, 1121, and 1146.1 protocols for gas furnaces, water heaters, and boilers respectively. UL’s Toronto, Canada combustion lab is the primary facility for this testing. For more information, please contact Peter Nguyen… read more
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Cybersecurity Considerations for Connected Smart Home Systems and Devices This UL white paper explores the issue of cyber threats originating from or impacting connected smart home systems and devices, and discusses the steps that smart home device manufacturers can take to reduce the risk to both device users and others. Beginning with a brief overview… read more
New Requirements for Worker Safety By Brian Rodgers: Dean Saputa, Associate Member ASHRAE Since the 1990s, ultraviolet germicidal irradiation (UVGI), or light in the UV-C wavelength (specifically 253.7 nm), has been used in HVAC&R equipment to maintain or return cooling capacity to as-built conditions by maximizing heat exchange efficiency. The technology deactivates biological growth on… read more