The sum of the Structural and Product program sections produces the Primary Refrigeration Load. The recommended **Running Load** (number of hours available for the Refrigeration plant to meet the Primary Refrigeration Load) is shown. This can be accepted or from 16 to 24 hours can be entered instead. Running loads in excess of 22 hours should only be applied in blast freezer and blast chiller applications.

Example: Applying an 'off-cycle' defrost Running Load of 16 hours means that the Primary Refrigeration Load is multiplied by 24/16. Therefore a Primary Refrigeration Load of 10kW x 24/16 results in a Preliminary Refrigeration load of 15kW.

The sum of the Primary (A) and Running Load (B) is the Preliminary Refrigeration Load but this figure is not actually displayed on screen.

The recommended Unit Cooler Fan Load (C) will be shown after the Preliminary Refrigeration Load has been computed. The recommended Unit Cooler Fan Load can be accepted or a different load can be entered. The Unit Cooler Fan Load must be from 2.5% to 15% of the Preliminary Refrigeration Load.

The sum of the Preliminary Refrigeration Load and the Unit Cooler Fan Load is the Total Coldroom Refrigeration Load.