Understanding Your HVAC/R System - Refrigeration School, Inc. (RSI)
https://www.rsi.edu/blog/hvacr/understanding-your-hvacr-system/
WEBMar 12, 2015 · Heating, Ventilating, and Air Conditioning (and Refrigeration), or HVAC/R, units are critical for maintaining an optimal climate and clean, odor-free air inside buildings of all sizes. HVAC/R systems control the temperature of the air, the humidity, and even the movement of the air to help keep the people who are inside the building comfortable.
DA: 85 PA: 75 MOZ Rank: 55