Topics in the operation and control of central mechanical equipment, including air and water-cooled reciprocating, centrifugal, scroll and screw chillers, cooling tower operation and control, and single and two-stage absorption. Other topics include commercial steam and hot water boiler control and chilled water, steam, and hot water distribution systems control. Study includes building electrical systems, including metering, wye/delta, and part winding starters, soft-start starters and variable-speed drives applied to HVAC fans and pumps. A brief overview of fire and security systems is provided, as well as electrical codes, standards, isolation transformers. 4 Credits (3 Lecture - 3 Lab) Prerequisite(s): BBT406 and BBT414.