What the Heck is High Performance HVAC w/ David Holt
HVAC School - For Techs, By Techs
Bryan Orr
4.9 • 1K Ratings
🗓️ 19 January 2023
⏱️ 47 minutes
🧾️ Download transcript
Summary
David Holt with the National Comfort Institute (NCI) returns to the podcast to talk about high-performance HVAC and what the heck it even is.
High-performance HVAC is all about delivering the highest possible equipment performance out of the box. High-performance HVAC is a key element of NCI's work; equipment should be able to deliver the health, comfort, safety, reliability, and efficiency expected by the occupants, and equipment that can't do that often has root issues we need to troubleshoot and fix. In many cases, the root cause has something to do with airflow issues.
As contractors, we can focus more heavily on testing fan airflow to get to the bottom of poor HVAC performance, even when there may not be an apparent airflow problem. We need the proper test instrumentation to measure CFM, a key indicator of performance. We can't expect to maximize system performance until the airflow is correct across the heat exchange surfaces.
Many factors that contribute to poor equipment performance actually have to do with building science, including issues like air leakage. Although HVAC contractors can't control that, we can be successful if we have a culture and mindset that makes us put our customers first and work with the circumstances we're given to deliver the best possible solution.
David and Bryan also discuss:
- David's role at NCI
- Manufacturer, distributor, contractor, technician, and customer relationships
- How to measure CFM effectively
- Effects of improperly
- Issues that arise during building construction
- Parts vs. equipment vs. systems
- What makes a good service technician
- The high-performance mindset
- Having a classroom vs. a commitment to training
If you want to get more involved in HVAC training, you can text David at (706)-332-2212 or visit https://nationalcomfortinstitute.com/pro/. Learn more about NCI's High-Performance HVAC Summit at https://www.gotosummit.com/.
Check out the HVACR Training Symposium and order your virtual tickets before, during, or after the symposium (Jan 19-21, 2023) at https://hvacrschool.com/symposium.
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Transcript
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| 0:00.0 | This episode of the HVAC School Podcast is brought to you by our trusted sponsors, |
| 0:10.8 | Refrigeration Technologies at Refriger tech.com. |
| 0:15.0 | Carrier and Carrier.com. |
| 0:17.6 | Carrier has been a long-term sponsor of the podcast. |
| 0:20.2 | They've made it possible very early on for us to do what we do and they are the products that we sell day in a day out everything from |
| 0:27.0 | Single stage equipment all the way up to the green speed extreme |
| 0:31.2 | One of the most efficient products on the market today, find out more about |
| 0:35.4 | what carrier has to offer and about becoming a carrier dealer by going to carrier. |
| 0:40.8 | com. Fieldpiece. Field Piece. |
| 0:43.0 | Field Piece. |
| 0:44.0 | Field Piece.com. |
| 0:45.0 | Navac and Navac Global. |
| 0:47.0 | If you haven't taken a look at the NRP 8DI digital smart vacuum pump from Navac. It's a brushless DC 8 CFM vacuum pump with |
| 0:57.2 | smart controls and an on-board micron gauge. Some of you may ask what's the |
| 1:01.4 | benefit of an on-board micron gauge? |
| 1:03.0 | Well, it's actually really helpful. |
| 1:04.0 | It allows you to test the pump before you even put it into use by just leaving the caps on and starting |
| 1:08.8 | it up and seeing the ultimate vacuum. |
| 1:10.8 | And it also allows you to see the pressure drop across your rig and gives you |
| 1:14.3 | another reference to check your existing micron gauges against if you suspect that |
| 1:18.8 | they might have an issue. There's a lot of benefits from that on-board micron gauge |
| 1:22.4 | on the NRP |
... |
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