Commercial Load Calculations for HVAC
Ғылым және технология
Join CaptiveAire for a professional development hour (PDH) and learn the ins and outs of commercial HVAC load calculations--how to determine what tonnage unit you need and all of the factors at play in this decision. This topic is particularly helpful for anyone who works in HVAC, especially HVAC engineers and consultants, as well as building owners and anyone who wants to gain a deeper understanding of the decision making process when sizing commercial ventilation equipment. Learn more about CaptiveAire at captiveaire.com.
To receive PDH certification for this video, please visit CaptiveAire.com/library and click Request Access under the Professional Development section. Fill out the form on the pop up that appears and click Send. CaptiveAire will then add you to a professional development portal where you can access a certificate to confirm your training.
0:00 Introduction
2:49 Part 1 - The Loads
3:16 Envelope loads
5:38 Using correct weather data
6:39 Thermal swing
8:02 Infiltration vs. positive pressure
9:02 Internal loads
9:52 The forgotten loads
10:18 Daily load distributions
10:59 Ventilation loads
11:33 Ventilation code requirements (ASHRAE 62.1)
11:57 Demand controlled ventilation (DCV)
12:54 Ventilation required by exhaust rates
13:33 Weather impact on ventilation
14:44 Part 2 - The Software
14:53 Why we use software
16:41 Inputting the data
17:29 The software output - A load calculation
19:54 Part 3 - Equipment selection
20:54 Determining discharge temperature
24:41 Nominal vs. real world tonnages
25:56 Modeling equipment for real life applications
28:21 Weather impact on ventilation
30:46 Ventilation impact on airflows
36:14 Confusing “Capacity”
39:17 Part 4 - Sizing philosophies, a holistic approach
39:30 Critical applications
40:32 Kitchen discharge temperature vs. airflow
41:01 Considering other factors
42:44 The risks of oversizing
46:15 Sizing modulating equipment
47:03 Conclusion
Пікірлер: 30
How is it that this video hasn't got a thousand likes? Fantastic video.
Yeah the editing and content on the video is amazing, great job !!!
This was my first time encountering your channel, and I have to say this is a hidden gem! You and Chris really did a great job at conveying things in a simple yet informative manner, definitely planning to watch your other videos.
Guys ! This is insane ! A CNBC/Bloomberg level quality content from an HVAC manufacturer, kudos to the creator. such a knowledgeable learning video modules from captiveaire. Everyone in the industry should see this. Thank you so much.
@CAPTIVEAIRE
Жыл бұрын
Happy to hear you enjoyed it!
This is unbelievable!!! This is, by far, the greatest YT video on this topic I've ever seen!!! Such quality, such magnificence!!
@CAPTIVEAIRE
Жыл бұрын
Thanks we appreciate the feedback! :)
Great Job Captive-Aire team. This is one of the best overviews of loads I've ever seen.
The best video about HVAC ever!
Like everyone else , thanks for all of your videos. They are the best
I am doing research before possibly switching into HVAC-related engineering jobs. Thank you for putting together this information in such a clear way.
Congratulations and thank you for making a video with quality content and production.
Thank you, this mean a lot for me!
One of the best videos out there. Thanks guys!
Very very well made informative video . Keep em coming
Very informative!
Great video 😊 I learned a ton of information. Thank you very much 🙏
@CAPTIVEAIRE
9 ай бұрын
Thanks for watching!
Thanks you so much,great work, In USA HVAC is having Great future.
Awesome thanks!! I used to work at the trade center.
Very Informative Video. Thanks 😊
Amazing, thanks so much for the useful information
Excellent presentation.Thank you!
amazing, great job, I saw the appearance of the Hourly Analysis Program HAP (e-20)
captiveaire rooftop units
How do I get access to your modeling software for design purposes?
Where can I buy the software?
can I get a copy of your software? watching from the Philippines
If you decided on the 5-ton application, why don't you consider "equipment loss of efficiency through time"?
Can u add with subtitle?