This product is a PDF that contains links to files that consist of PowerPoint slides synchronized with the audio-recording of the speaker (recorded presentation), PDF files of the slides, and audio only (mp3) as noted.

This program presents design and operation considerations for Water Side Economizers that can provide chilled water when outdoor air temperature is low. This has frequently been referred to as "free cooling". Integrated and non-integrated economizers are defined and the differences and advantages presented. Cooling tower freeze protection and defrost control during sub-freezing weather and the requirements of ASHRAE Standard 90.1 for water side economizers relative to integrated economizers will be discussed.

1. Integrated Water Side Economizer
   Jeff Stein, P.E.
   This product contains: Recorded Presentation, Recorded Presentation (mp4), Audio (mp3), Slides (pdf)
2. Chiller Technology Application with Water Side Economizer
   Charlie Putz
   This product contains: Recorded Presentation, Recorded Presentation (mp4), Audio (mp3), Slides (pdf)
3. Water Side Economizer Design and Modeling
   Susanna Hanson, P.E.
   This product contains: Recorded Presentation, Recorded Presentation (mp4), Audio (mp3), Slides (pdf)