The second of two papers. Presents a detailed methodology for calculating selected refrigeration loads on an hour-by-hour basis. Discusses the load factors of infiltration, product, motors and appliances, occupancy, lights, evaporator fans, defrost loads and respiration. Suggests a method for arriving at a design load, on the basis of which equipment may be selected.

KEYWORDS: Calculating, refrigeration, cooling load, lighting, air infiltration, equipment providing heat, incidental heat gain, lighting providing heat, designing, evaporators, fans, selecting, equipment