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HVAC Fan Laws - in excel sheet, will help you calculate the fan speed, fan volume, and fan power with the varying inputs you provide. The article will also teach you about the fan curve and how to use the fan setting in your HVAC system.

HVAC Pressure Relief Outlets Sizing Calculation and Door Air Loss Calculation in an Excel Sheet; help you choose the sizing of pressure relief valves and also help calculate air loss through the door. The article further provides the types of pressure relief valves and the considerations that need to be taken while choosing the sizing of the valves.