Reference guide that explains how to calculate cooling and freezing loads for commercial refrigeration systems.
This engineering manual provides formulas, tables and sample calculations for determining the heat load of commercial refrigeration rooms and freezers. It covers transmission load, air‑change load, miscellaneous loads and product load, and shows how to apply safety factors.
The guide includes quick‑selection charts, a rapid load calculator for large units, and detailed load‑estimation forms (Bulletin Above32‑05 and Below32‑05) to help engineers select appropriate refrigeration equipment.
The minimum slab temperature should be at least 40 °F, and normally 55 °F is used for freezer applications.