The program even includes an feature that lets you create chart processes for a complete air conditioning cycle by entering data in terms that are familiar to every HVAC designer. Features • Displays complete psychrometric chart on computer screen • Prints beautiful, full color, elevation-adjusted charts, even better looking than the on-screen image. • Creates common HVAC air conditioning processes with Air Handler Model feature. • Calculates & displays solution for any psychrometric problem • Adjusts for elevations between -1000 and +24,000 feet • Allows dry bulb temperatures From -40 to 200 degrees F • Calculates using English or metric units • Uses ASHRAE psychrometric equations • Define state points with any two psychrometric parameters • Allows custom labels for each state point on the chart, and lets you position them.