Manual S, "Residential Equipment Selection," a guide for selecting residential heating-and-cooling equipment, is one of a series of ACCA manuals used in the design and installation of residential and commercial HVAC systems.
"Through the ANSI standard process of Manual J, it was ascertained that heat loss/gain calculations are but one facet of proper equipment and sizing," said ACCA senior Vice President Michael Honeycutt. "Another critical aspect is the proper selection of equipment and the capability of the equipment to match the required load. This is where Manual S comes in.
"With Manual S as an ANSI standard, the proper selection of heating-and-cooling equipment, based on manufacturer's rated capacities will result in closer-matched equipment selection, increased comfort, and less energy utilization," Honeycutt said.
ACCA's Manual D already has received ANSI approval as the standard for residential duct design. ACCA's Manual J residential load calculation procedure is currently in the ANSI review process.