Conclude that the load voltage around the simple circuit must be 9 volts. Apply Kirchoff's Second Law, that the sum of the voltages around a circuit is zero. Let Current = Voltage/Resistance (I=V/R). What is the formula of load?Ĭalculating an Electrical Load in a Simple Circuit Let Power = Voltage * Current (P=VI). When you see the term ' heating capacity,' it refers to the actual heating equipment. Heat capacity means the amount of heat that a piece of HVAC equipment can provide. Heat load refers to the amount of heating that a building needs in order to maintain the indoor temperature at established levels. It identifies the square footage of the room to determine the capacity-BTUs per hour-needed to reach the desired indoor temperature. The HVAC load calculation shows you the exact amount of BTUs a certain space requires for sufficient heating and cooling.
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