By measuring the Enthalpy difference between the air entering and leaving a cooling coil, you can calculate the exact tonnage of AC needed. Summary Table: Navigating the Lines
The total heat energy in the air (sensible heat + latent heat). It is crucial for calculating how much energy a cooling or heating coil needs to add or remove. F. Dew Point how to read a psychrometric chart
These lines look very similar to Wet Bulb lines (diagonal). Enthalpy represents the total heat content of the air (sensible heat + latent heat). By measuring the Enthalpy difference between the air