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ACCA Manuals J, S, and D are referenced and required across America. This form provides a quick and easy review of the HVAC system design. This review gives an objective indication of whether the required processes were followed.

• Manual J Load Calculations: Estimates for the heating and cooling required for a residence are correct.
• Manual S Equipment Selection: Equipment selection was based on the heating and cooling loads and OEM performance data; the equipment is within the maximum sizing requirements.
• Manual D Duct Systems: The duct sizes were based on the equipment selected, duct system geometry, fittings, and duct materials used.

The form is meant to be simple; it is neither exhaustive nor exclusive. Hundreds of elements in the load calculation, equipment selection, or duct design could be verified. This form seeks to examine only a few very simple items, in each design stage that directly impact the occupants' health and safety. The form is meant to stand alone and be enforced immediately. However, it could serve as the basis for an expanded form when the code officials have an increased understanding of the processes, or it may be modified to address regional concerns.

The contractor's completed form may be supported with copies of standard load calculation forms, OEM performance data, and other worksheets. This form is impartial to any particular software developer. However, they have examined the form and are investigating the development of simple print commands that facilitate its completion and supplemental documentation.

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