Building Controls VIII: Controllers and Controlled Devices

If we can control an environmental system we can tell equipment when to turn on and off, how slow or fast to run, and how cool or hot the temperature of air or water needs to be.

For an environmental control, or building automation system to work effectively, three things must take place: Measured data must be input into the system. That data must be compared with a set of standards or instructions. Lastly, an action to change or maintain current environmental conditions must be made.

In the previous class in this series we looked at how controllers respond to the inputs they receive. We will now look at the different classifications of controllers. We’ll also see how the control loop is completed by controlled devices, which take the actions that maintain or change current environmental conditions.

The course link will take you to the Energy University landing page; if this is your first Energy University course, click “Join” and complete the form. Returning students can “Login” from the landing page. You can search for each course by title.

This course is accredited by: IEEE, USGBC, BPI, BOMI, CIBSE, ACORE, REEP, FIRE, AFE, CPD, IAAT, and FENITEL


Schneider Electric
Date: August 1st, 2011
Length: 45 minutes


Building Automation Systems
Building Systems
Facilities Operations and Management
Facilities Operations, Maintenance and Engineering
Operating and Maintaining Electrical and Mechanical Systems
Operating and Maintaining HVAC Systems