» Psychrometric Calculator A psychrometric chart is a design tool to graph a building's HVAC thermodynamic air conditions and processes. Psychart gives you the power to create and examine complex processes involving moist air, and print out beautiful charts that illustrate those processes. Ps圜hart - Psychrometric Analysis and Design Psychrometric Analysis - Geared Toward the HVAC Professional. For professional reports, use this electronic psychrometric chart tool. These calculators include software to calculate your potential LEED compliance. Trane software range features a variety of free tools that make your design and analysis tasks easier. Easily plot HVAC and other psychrometric processes while out in the field, save the graphs, and then email the graph and results to yourself or clients. The new ASHRAE Psychrometric Chart app is the first truly interactive graphical psychrometric chart for your iOS device, and it includes both I-P and SI units.