HVAC Systems Design Handbook, Fourth Edition

In this chapter, cooling and heating loads have been discussed, with emphasis on manual procedures and the elements of the loads. The principal source of information on this subject is the ASHRAE Handbook Fundamentals, to which the interested reader is referred for a more detailed discussion. All load calculations, whether manual or computerized, should be carefully checked for consistency and reasonableness. This requires the application of judgment, common sense, and experience.