March 27, 2017

UL Approved for NOx Testing

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

March 22, 2017

UL Publishes White Paper on Cybersecurity & Connected Devices

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

January 5, 2017

HVAC UV Germicidal Irradiation UV-C Fixtures

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

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January 5, 2017

Environmentally Unfriendly Refrigerants Get the Freeze

November 8, 2016

UL and CNCA Sign Cooperation Agreement