American Recovery and Reinvestment Act" Tax Credit Incentives.Click here to read about the program. Located in Albuquerque New Mexico, 7-D Heating & Cooling LLC specializes in all aspects of residential, commercial and industrial HVAC. We do design/build, new construction, refitted and replacement of HVAC systems. 7-D provides HVAC mechanical services from chillers and boilers to small roof mounted package units. 7-D specializes in unique solutions to complicated HVAC problems.