ACCA Manuals J, S, and D are referenced and required across America. This form provides a quick and easy review the HVAC system design. This review gives an objective indication whether required processes were followed.
- Manual J Load Calculations: Estimates are correct for the amount of heating and cooling required for a residence.
- Manual S Equipment Selection: The selection of equipment 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 very simple; it is neither exhaustive nor exclusive. There are hundreds of elements in the load calculation, equipment selection, or duct design that could be verified. This form seeks to examine only a few very simple items, in each design stage, that have a direct impact health and safety of the occupants. 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 form, completed by the contractor, 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, though they have examined the form and are investigating the development of simple print commands that facilitate its completion and supplemental documentation.