Psychrometric Chart + Duct 4.3

Psychrometric Chart Duct Calculator is a precise and powerful tool designed for HVAC&R engineers. This psychrometric chart use ASHRAE equations at normal temperature and pressure region and is perfectly consistent with all ASHRAE charts of No.1-7(SI Units) and No.1-5(IP Units).

v4.3 [Jun 27, 2012]
- Corrected some symbols display in English language.