Heating Ventilation and Controls Engineers (HVAC) design, build and install control systems for commercial and residential properties. These systems are computerised and networked through a building to a central control point. Engineers advise customers on installing new systems, train customers on its operation, fault find and make arrangements for repairs by technicians. Control engineers have working knowledge of CAD and can have a background in computer science, mechanical engineering, HVAC technologies or building service engineering. They work in HVAC service companies, construction companies or consultancies.
HVAC Control Systems Engineer – USA site with helpful information on this role.
Building Services Engineer
http://www.goodday.org.uk/ information on work in HVAC
Building Services Engineering