The Fifth Edition of Manual N Commercial Load Calculation for Small Commercial Buildings is the Air Conditioning Contractors of America procedure for commercial heating and cooling load calculations for buildings three stories or less. This procedure uses the CLF/CLTD method for cooling load calculations The attributes, capabilities and sensitivities of this procedure fully comply with the requirements of the ANSI-recognized ASHRAE/ACCA Standard 183-2007 — Peak Cooling and Heating Load Calculations, in Buildings Except Low-Rise Residential Buildings.
The full version of Edition Five of Manual N (N5) profoundly upgrades the capabilities and sensitivities of the previous edition and provides an abridged version (N5AE that supports hand calculations for a subset of N5 applications and procedures.
The New Fifth Edition of Manual N details the load calculation procedure that addresses the advances in the commercial construction industry: new materials, methods of assembly, and operational requirements. It provides instruction to help contractors and designers satisfy new, and often conflicting, energy, ventilation, and comfort requirements. The new Manual N is divided into four sections providing both a quick and comprehensive procedure for commercial load calculation.