The main purpose of air conditioning systems is to keep temperatures, humidity, pressure and air quality within comfort zones and to maintain safe environment conditions for equipment and materials. The pervasive development of Iran’s main industries such as oil, gas, petrochemicals, industrial plants and civil engineering projects which embody towers, modern offices, and trade centers must be in line with technological improvements in air conditioning industries; not to mention revolutionizing classical methods and outdated patterns. Accurate attention to categorizing the technology for manufacturing devices based on their final function, sufficient attention to control and automation systems for precise control of design parameters and also energy saving necessitates the application of new standards in manufacturing devices. Twenty years of experience, knowledge, and expertise in well over 60 oil and gas projects has provided Hiva Sanat Group notable, efficient participation in substantial national projects.