Tour Andover Controls, a privately held corporation in Morrisville, N.C., is one of the leaders in building technology and mechanical service. As a specialist in the heating, ventilation and air conditioning market, the corporation has experience in automating, installing and supporting a range of systems. These systems include refrigeration, climate control and HVAC support. Applied Systems Technology, an affiliate of Tour Andover Controls, provides advanced security, monitoring, fire systems and time clocks. Tour Andover Controls corporate offices are located in Raleigh, N.C. It has offices throughout North Carolina in Charlotte, Greenville and Raleigh. Tour Andover Controls was founded in 1982.