Several requirements from ASHRAE HVAC inspection/maintenance and building energy standards were approved by the International Code Council (ICC) to appear in the 2012 I-Codes, said ASHRAE.
Inspection and maintenance of HVAC systems will be required in the International Mechanical Code (IMC) as outlined in ANSI/ASHRAE/ACCA 180-2008 – Standard Practice for Inspection and Maintenance of Commercial Building HVAC Systems. The requirement is viewed as a step toward safer and more energy-efficient commercial buildings.
The ASHRAE 180 requirements help ensure proper functionality, saving energy and preventing potential accidents by failing systems, according to ASHRAE.
Building energy use
Proposed changes to the upcoming version of I-Codes were also approved regarding energy use, based on requirements in ANSI/ASHRAE/IES Standard 90.1-2010 – Energy Standard for Buildings Except Low-Rise Residential Buildings.
The changes include:
- Adding requirements for areas under skylights, including lighting controls in areas where skylights are used, thereby utilizing natural light in conditioned spaces.
- Modifying equipment efficiency requirements for heat rejection and heat transfer equipment including open- and closed-circuit cooling towers, chillers, unitary air-conditioning and condensing units, unitary and applied heat pumps, single-package vertical air conditioners, and packaged terminal air conditioners.
- Modified piping insulation requirements
IECC commercial building requirements
Additionally, a proposal that rewrote most of the commercial chapter of the International Energy Conservation Code (IECC), maintaining the reference to the prescriptive requirements of ASHRAE 90.1, was approved by ICC, said ASHRAE.
The following requirements consistent with ASHRAE 90.1-2010 gained approval:
- Fenestration leakage
- Demand control ventilation
- Energy recovery
- Economizer efficiency
- Lighting controls, including daylight zone controls and manual lighting controls
- Lighting system functional testing
- Building area and space-by-space lighting power densities
An additional path of compliance for water-cooled chillers was also approved, said ASHRAE.