ACCA makes available products based on our industry-standard procedures from software vendors which meet our high quality standards to ensure accuracy and consistency. Learn more below about the quality products available from these companies through ACCA with substantial member discounts.

Remember, only these companies are authorized to display the "Powered by ACCA Manual J" logo and only their products meet the standards of Manual J residential load calculation.

• Elite RHVAC
• Wrightsoft Right-J8
• Nitek HVAC Wizard
• Adtek AccuLoads

Note: the Florida Solar Energy Center's EnergyGauge software is also approved by ACCA for Florida-only applications.

The following software has been approved by ACCA as meeting the requirements of Manual D for duct sizing and design. Only those companies authorized to display the "Powered by ACCA Manual D" logo meet the standards of Manual D.

• Elite DUCTSIZE
• Wrightsoft Right-D