American Plumbing & Mechanical promoted Lloyd Smith to president/COO - multifamily operations. He has been president/HVAC operations since August 2002. Smith's company, LDI Mechanical, was acquired by AMPAM in February 2000. Since then, he has been president, AMPAM LDI and assumed national responsibility for HVAC operations in January 2001 when he was named vice president/HVAC for AMPAM. In his new position he will be responsible for all HVAC locations, including single family. AMPAM is a large, national residential plumbing and mechanical contractor company that installs plumbing and heating systems.