The pandemic has caused IAQ to become a big concern, which has led industry experts to recommend increasing ventilation and upgrading filtration for commercial buildings.
Recently, the Underwriters Laboratory (UL) has approved the second edition of its UL 60335-2-89 standard, which includes higher R-290 charge limits that would expand its potential uses in commercial refrigeration.
This award recognizes members of ASHRAE who have served The Society faithfully and with distinction on committees or otherwise given freely of their time and talent on behalf of The Society.
Two very different standards have recently been introduced that offer HVAC professionals the ability to demonstrate the performance of the systems they install.