AIR 240

Direct Digital Controls (DDC) I

Northern Virginia Community College · UGRD · Fall 2026

1 section
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Studies the principles of direct digital controls. Presents common terms used within the HVAC control industry. Covers the function and operating characteristics of sensors, controllers, and final control devices. Highlights transfer function for a control devise and details the development of equations for typical control transfer functions. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week. An additional career and technical education course specific fee of $25.00 per credit hour applies to this course. The price is discounted 50% to $12.50 per credit hour for the 2026-27 academic year only.

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Class #northern_virginia-0056Fall 2026UGRD3 credits
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