HVAC is the process of controlling the temperature and humidity in your building. Most modern facilities are equipped with Direct Digital Controls, which use electronic signals to accomplish their tasks. However, the older type of HVAC controls, known as pneumatic, still operate by using air pressure and mechanical means to accomplish their tasks. This type of system, however, does not have the same advantages as DDC.
HVAC is an essential part of residential buildings, medium to large industrial buildings, offices, hospitals, automobiles, marine environments, and more. This technology helps regulate temperature and humidity by circulating fresh air from outdoors. It is used to cool and warm buildings, as well as to keep people and goods safe from potential health risks.
An HVAC system is a complex piece of equipment that requires years of training and certifications. Professionals in this field have several advanced certifications in the field. They must be certified by their state, local, and national governments. Simple tasks, such as changing the air filter, can be easily done by homeowners, but complicated repairs and full installations require the expertise of a licensed contractor. In addition to HVAC knowledge, contractors should also possess specialized tools and equipment.
Modern HVAC systems use several different methods to move air around a building. The most common method is through ducts. However, there are some modern systems that use less expensive and inconspicuous vents instead of ducts. Some of these systems can be integrated into a single system.