Features: Air Properties Calculator: Full ASHRAE-compliant psychometrics. Thermal Design Worksheet: The Demand Curve tab features a Thermal Design Worksheet which can be saved to your computer and includes printable and exportable graphs. Performance Evaluator: Evaluate induced draft or forced draft, or crossflow or counterflow cooling tower performance. The CTI Toolkit calculates percent performance or leaving water deviations, and data can be entered manually or with an input file. The Performance Curve tab features automatic cross-plotting and printable and exportable graphs. To Activate: Serial Number: Your software download will give you access to the demo version of the CTI Toolkit. You will receive a serial number to activate your installation within one business day of your purchase at the email address used during checkout. Please address any questions or concerns to the CTI office. Demo Software: This version of the CTI Toolkit is a free demo. Some features and systems are unavailable for use. To purchase the full version of the software, click here.