CHICAGO - If the relative humidity is high indoors, what caused it? Possible sources include outdoor air infiltration, indoor activities, and problems with the air-conditioning system. This ...

Continue sampling for a minimum of 15 minutes, collecting a sample volume of at least 30 L, as indicated on the dry gas meter. Record on the Moisture Data Sheet (), at five-minute intervals, the ...

Let’s first state the obvious. Most techs are intimidated by Psychrometric charts and Mollier diagrams, we just are. While there are some pretty complicated formulas that back up these diagrams, using ...