Building Technology  

We're briefly discussing how we moved from pneumatic to DDC types of control infrastructure before looking and different types of control including two-position, floating control, and PID (proportional integral derivative).

The representation of HVAC sequences as a series of connected logic blocks is critical. Here we are starting with the basics of how different elements of HVAC control can be shown in logic block format.

We're starting with some basic HVAC controls sequences of operation as represented in schematic and logic block format.

This module focuses on establishing some different ways to classify air side systems because there is such a variety used today. We classify by: methodology, unit type, add-on features, and distribution.

In addition, a few common considerations for air-side HVAC system performance are discussed, including preheat coils, filter systems, reset strategies, and system effect.

Finally this module explains how an air-side economizer is ideally supposed to operate and the potential for different modes of failure and inefficiency.