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Manual S shows you how to select and size heating and cooling
equipment to meet Manual J loads based on local climate and ambient conditions
at the building site. Manual S covers sizing strategies for all types of cooling
and heating equipment, as well as how to use comprehensive manufacturer's
performance data on sensible, latent, or heating capacity for various operating
conditions. 115 pp.
Comprehensive performance data compared with ARI Directory data for air
conditioners and heat pumps, and the presentation formats used by different
How ventilation loads and air distribution system loads affect equipment size
How to determine the condition of the air approaching the cooling coil when
outdoor air is introduced into the return side of the duct system, including
specific tables and charts
Cooling-only equipment, air to air heat pumps, water to air heat pumps, dual
fuel heat pumps, multispeed and variable speed equipment
Why the "400 CFM per ton rule" is a myth, why the blower CFM is
exclusively defined by the sensible heat equation, why lower DX coil air flow
rates are compatible with humid climates, and why water source refrigeration
cycle equipment should not be sized to satisfy the design heating load
Thermal balance point diagrams for heat pumps
Economic balance points for dual fuel applications