6/7/2023 0 Comments Ashrae 90.1It includes significant changes affecting the built environment, including the requirement of system commissioning and limits on heated and cooled vestibules. On the other hand, the most recent version of the IECC was published last year (International Code Council, 2018). Next year, a new edition of ASHRAE 90.1 will be published, and the design community will again scramble to adapt to any changes. Within the mechanical section, changes include a mandate for monitoring of large, electric-driven chilled water plants for energy use and efficiency efficiency and rating requirements for dedicated outdoor air systems (DOAS) and performance monitoring for air economizers for air-cooled DX cooling units. This edition includes revisions to the building envelope, lighting, and mechanical directives. ![]() The most recent version of ASHRAE 90.1 was published in 2016 (ASHRAE, 2016).
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