ARLINGTON, Va. — The Air Conditioning Contractors of America (ACCA) has announced that Manual J®, its residential load calculation procedure for HVAC systems, has been enhanced again for 2003.
In 2002, ACCA published the eighth edition of the manual. Updated and rewritten, the latest edition of Manual J significantly enhances the abilities of contractors to determine the appropriate sizing of HVAC systems for residential dwellings, says the association. It includes greater sensitivities to new construction materials and improved calculations for a wider variety of architectural features.