Sheet Metal and Air Conditioning Contractors'
December 19, 2002
National Association Inc. This new manual,HVAC Systems - Testing, Adjusting and Balancing, is designed to provide the basic fundamentals, methods, and procedures, including the necessary tables and charts to balance a complete HVAC system. Subjects covered include motor operation; fan curves; pump curves; fluid low losses in ducts, fittings, pipes, and air terminals; VFDs; DDC systems; and lab hood exhaust balancing.