. I was happy to learn … HVAC may also stand for High-voltage alternating current HVAC (pronounced "HVAC" or, occasionally, "H-VAK" is an initialism / acronym that stands for "heating, ventilation and air conditioning. "This is sometimes referred to as climate control. These three functions are closely interrelated, since control of the temperature and humidity inside a building, in addition to providing for smoke control , maintaining pressure relationships between spaces and provide fresh air for the occupants. In modern building design, systems design, installation and control of these functions are integrated into a single "HVAC system." In some regions (e. G., United Kingdom), the term "Building Services" is also used and HVAC Engineers Building Services Engineers named. See CIBSE. Air controller term can mean a complete unit that includes the elements of fan, heating and cooling racks and filter or damping chamber, but not including the conduit through the building.
Do not try this at home. HVAC training is required. In this video I can solve a BWC150 Trane RTU.