ASHRAE has released the 2013 version of its indoor air quality standard, which according to the association, contains several revisions that will help users better meet its requirements.
Available in the 15- to 25-tonnage range, the new Trane® Foundation™ light-commercial rooftop units feature a dual-footprint design that can directly replace up to two-thirds of existing units without adaptor curbs.
Major changes to requirements regarding building envelope, lighting, mechanical, and energy cost budgets are contained in the newly published energy standard from ASHRAE and IES.