The ASHRAE Epidemic Task Force has updated its reopening guidance for HVAC systems to help mitigate the transmission of the COVID-19 virus.
“The Building Readiness Guide includes additional information and clarifications to assist designers and commissioning providers in performing pre- or post-occupancy flush calculations to reduce the time and energy to clear spaces of contaminants between occupancy periods,” said Wade Conlan, ASHRAE Epidemic Task Force Building Readiness team lead, in a news release. “New information includes the theory behind the use of equivalent outdoor air supply, method for calculating the performance of filters and air cleaners in series, and filter droplet nuclei efficiency that help evaluate the systems’ ability to flush the building.”
There is now a link to a view-only Google Sheet that can be downloaded for use. This will help determine the available equivalent outdoor air changes and time to perform the flush.
The guide now also includes data to consider for heating of outdoor air and the potential impact on pre-heat coils in systems.
Related Stories
Codes and Standards | May 20, 2019
Property lenders shouldn’t invest for 30 years in most of Florida, expert warns
Climate ignorance driving some ‘insane’ deals.
Codes and Standards | May 17, 2019
NIMBYism is the biggest multifamily construction barrier
National Apartment Assn. report assesses reasons for difficulty in creating more apartments.
Codes and Standards | May 17, 2019
Dept. of Energy to award up to $33.5 million for advanced construction R&D
Focus is on techniques to reduce energy bills.
Codes and Standards | May 16, 2019
Mixed reviews on targeted tax break for San Francisco neighborhood
“Twitter tax break” may have worsened some of the area’s problems.
Codes and Standards | May 15, 2019
OSHA inspections to increase, says Secretary of Labor
Newly hired inspectors getting up to speed.
Codes and Standards | May 14, 2019
Database records more than 1,360 K-12 school shooting incidents since 1970
Naval Postgraduate School program maps locations nationwide.
Codes and Standards | May 13, 2019
In many cities, downtown housing comes with a hefty premium
Urban core living costs hundreds of thousands more in largest U.S. cities.
Codes and Standards | May 7, 2019
San Francisco plan would require largest commercial buildings to use 100% renewable electricity
First in the U.S. mandate would be phased in from 2022 to 2030.
Codes and Standards | May 7, 2019
ABC says best practices can improve construction companies’ safety by 680%
Daily ‘toolbox safety talks’ were most effective safety measures.
Codes and Standards | May 7, 2019
Office noise significantly reducing employee concentration, productivity, and creativity
Workplace distractions cause some to choose to work remotely.
