afcef.org PDH Course M afcef.org Page 1 of Psychrometric Chart Fundamentals and its application to HVAC Troubleshooting. PSYCHROMETRIC CHART AND AIR CONDITIONING PROCESSES 1. Psychrometrics Psychrometrics is the science of involving thermodynamic properties. PSYCHROMETRIC CHART. ▫ Identify parts of the chart. ▫ Determine moist air properties. ▫ Use chart to analyze processes involving moist air. A psychrometric chart (or table) is then used to convert the dry bulb temperature TDB and the wet bulb temperature Heating, Ventilation, and Air Conditioning. A psychrometric chart also helps in calculating and analyzing the work and energy transfer of various air-conditioning processes. In practical applications, the. Insight into using psychrometric chart analysis, to decide need for air conditioning unit. Psychrometric chart is one of the chart that is commonly used in solving HVAC problems. The properties of air such as wet bulb temperature, dry bulb. Get more information on psychrometry and psychrometric chart, and the importance in air conditioner sizing.