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title: Webinar Replay
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# Webinar replay

# Part 3: Equipment Selection after understanding building load calculations

## What You Will Learn

Building load calculations are a fundamental building block of HVAC system design, and the single largest contributor to oversizing.

In the first part of the series, we covered the different types of load calculation methods as well as internal and external loads. We also talked about different types of loads and how they impact the building HVAC load. Listen to it here:  [https://info.armstrongfluidtechnology.com/lp-webinarreplay-part-1-understanding-load-calculations-and-the-impact-on-building-systems-na-september26-2023](https://info.armstrongfluidtechnology.com/lp-webinarreplay-part-1-understanding-load-calculations-and-the-impact-on-building-systems-na-september26-2023?hsLang=fr-ca)

Part 2 focused on building a load profile,  as well as why a load profile is critical to understanding the operation of the system. We discussed plotting system operation on a psychrometric chart, which is crucial to understanding how coils will perform under various load conditions. [https://info.armstrongfluidtechnology.com/lp-webinarreplay-part-2-understanding-load-calculations-and-the-impact-on-building-systems-na-october10-2023](https://info.armstrongfluidtechnology.com/lp-webinarreplay-part-2-understanding-load-calculations-and-the-impact-on-building-systems-na-october10-2023?hsLang=fr-ca)

Part 3 will focus on equipment selection after understanding the load calculations. Be sure to watch Part 1 and Part 2 before attending.

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