HVAC development background
Heating, ventilation and air conditioning are caused by the inventions and discoveries of many scientists, including Nikolay Lvov, Michael Faraday, Willis Carrier, and Ruben Trane. (English: Reuben Trane), James Joel, William Rankine (English: William Rankine) and Sadie Kano. Parts of the HVAC system were invented around the industrial revolution, and companies and inventors around the world are constantly introducing new and efficient new methods. The three main functions of HVAC are related to heating, ventilation and air conditioning. The aim is to provide comfortable comfort and proper indoor air quality (English: reasonable installation, operation and maintenance costs). :Indoor air quality). HVAC systems provide ventilation to reduce air infiltration (English: Infiltration (HVAC)), maintain pressure relationships between indoor and outdoor or different rooms, and the characteristics of air flowing into or out of the room are called indoor air distribution (English: Room air) Distribution). In modern buildings, the above functions (including their control systems and system design and installation) are integrated into one or more HVAC systems. For small buildings, the contractor will select the HVAC system and equipment directly according to the needs. In the case of large-scale buildings, the architects and engineers, mechanical and structural engineers will analyze, design and select the HVAC system, which will be installed by professional mechanical contractors. The HVAC system is an international industry, and its related work includes system operation, maintenance, design and architecture, equipment manufacturers and business, research and education promotion. The HVAC industry was previously managed by manufacturers of HVAC equipment, and many international management and standardization organizations are concerned with this area, including the International HVAC Distributor Management Approach Committee (English: HARDI), US Heating, Refrigeration and Association of Air Conditioning Engineers (English: ASHRAE), American Society of Sheet Metal and Air Conditioning Contractors (English: SMACNA), Air Conditioning Contractors of America, Uniform Mechanical Code, International Building Code (English: International Building Code) provides services and enhances the level of HVAC industry related services. Led Makeup Mirror,Bath Touch Mirror,Makeup Vanity Mirror,Bathroom Mirror With Led Light SALLY TECHNOLOGY CO.,LTD , https://www.sallyshowers.com