Given the following readings from an electric furnace, use the formula to calculate airflow.
CFM = 1.08 × Volts × Amps × (Tₛ - Tᵣ) / BHP
Where:
CFM is the airflow in Cubic Feet per Minute.
Volts is the voltage at the strips.
Amps is the amp draw of the strips.
Tₛ is the supply-air temperature.
Tᵣ is the return-air temperature.
BHP is the Brake Horsepower.
