The American National Standards Institute has opened a HVAC construction standard from the Air Conditioning Contractors of America for public review.

The standard, "Quality Maintenance of Commercial Refrigeration Systems," covers inspection and maintenance for HVAC market equipment found in supermarkets, convenience stores and refrigerated warehouses.

Comments opened Jan. 2 and run until Feb. 16. Go to www.acca.org/ansifor a copy and to comment.