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Best Practices for Installing DDC Systems

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Course Length: 3 hours

A facility’s direct digital controls (DDCs) form a living, breathing system that an owner will use throughout the life of the building. However, many control systems do not work as designed on “Day One,” much less after two to three years of use. Adding to the complexity are subcontractors, who often do not routinely install control systems, as well as installing contractors, who have broad discretion to determine aspects of how controls are instituted. In addition, many manufacturers (especially in developing countries) sell DDCs and components but provide little information on installation practices or quality control guidelines.

If standardized and quality installations are promoted, the short- and long-term success of control systems will be greatly improved.

This course will provide tools to ensure uniformity for consultants, contractors, and code officials and will specifically benefit consulting engineers, DDC design integration engineers, commissioning authorities, and contractors who install DDC systems.

Course discussion will cover the following information:

  • Terminology
  • Wiring sizes and types
  • Panel building
  • Grounding
  • DDC drawings and schematics
  • DDC specifications

Attendees who complete this course will master the following skills:

  • How to install DDC systems according to best industry practices
  • How to commission DDC systems to produce specified comfort levels
  • How to test DDC systems to ensure correct system operation

Course Instructor:

Larry Fisher, Life Member ASHRAE

How Can I Register for This Course?


Additional Information

All courses and webinars are available for Chapter and In-Company Programs. They may be periodically scheduled for the Winter and/or Annual Conference Education Programs, as well as the Online Courses Series.

Chapters or Companies: Contact Karen Murray, Manager of Professional Development ( or 678-539-1146), to schedule an ALI seminar, course, or webinar at your organization or event.

Availability: Check the various offerings listed under Professional Development > All Instructor-Led Training to see if this course is being offered at an upcoming event or as a webinar.