Intro to Direct Digital Controls in HVAC

Integrated digital controls have long been an industry standard in HVAC equipment. The DDC or Direct Digital Control takes that to a much higher level by enabling the automated central control of a number of related electromechanical devices by one or more microprocessors. This program is designed to take the mystery out of DDC's by introducing control specifications, source options, features, installation, commissioning, servicing, and maintenance.