US Air Conditioning Distributors Inc. 1850 E. Watkins St. Phoenix AZ 85034 is a wholesale distributor of HVAC parts equipment and supplies. They are the largest privately owned HVAC distributor in the world. Areas Served: US Air Conditioning Distributors operates 46 HVAC supply houses in California Nevada Utah Idaho and Arizona. What Brands Does US Air Conditioning Sell? US Air Conditioning Distributors carries name brand HVAC supplies from Aermec Broan Carel Coolerado Eaton First Company Fridrich Johnson Controls Magicaire Mars Modine Mitsubishi Mutiaqua Raypak Source1 Sporlan Unico Venstar as well as many others.