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HVAC School - For Techs, By Techs

Vacuum and Recovery in an A2L World with Jesse Stewart

HVAC School - For Techs, By Techs

Bryan Orr

Training, Careers, Airconditioning, Self-improvement, Hvac, Business, Education, Refrigeration, Heating, Ac, Apprenticeship

4.8985 Ratings

🗓️ 24 January 2024

⏱️ 29 minutes

🧾️ Download transcript

Summary

In this podcast, Bryan Orr interviews Jesse Stewart from NAVAC about A2L refrigerants and compatible tools and safety procedures.

They discuss how NAVAC has a full line of A2L-compatible tools for evacuation and recovery, including the new NR7 and upgraded models of the NRDDF and NRDD. Jesse explains key features that make tools A2L compatible, like DC motors, sparkless designs, insulated electrical terminations, soft power switches, and fans. He notes that NAVAC has been designing tools this way in preparation for wider A2L adoption.

The conversation covers some evolving questions around A2L systems, like requirements for strike plates to protect line sets and whether existing line sets can still be used. They agree that ongoing questions need to be directed to organizations like ASHRAE to get definitive guidance. Overall, Jesse emphasizes that best practices are now required, not just recommended, when working with A2Ls. He details several examples, like nitrogen purging while brazing, the "10-foot rule" for checking potential ignition sources, and proper confined space protocols.

Topics covered:

  • NAVAC's line of A2L-compatible tools
  • Key safety features for A2L tools
  • Evolving regulations and best practices around A2L systems
  • Using nitrogen while brazing
  • The "10 foot rule" before A2L installations
  • Working in confined spaces with A2Ls
  • Adapting outdated practices to meet new safety needs

Explore NAVAC's A2L-compatible tools at https://navacglobal.com/a2l-compatible-tools/ or general products at https://navacglobal.com/. You can also ask the experts for help by emailing [email protected].

Learn more about the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.

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Transcript

Click on a timestamp to play from that location

0:00.0

The HVAC School Podcast is made possible by these great partners.

0:08.7

Carrier and carrier.

0:11.2

Carrier has been a long-term sponsor of the podcast. 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.

0:20.0

Everything from single stage equipment all the way up to the green speed extreme, one of the most efficient

0:26.2

products on the market today. Find out more about what carrier has to offer and about becoming

0:31.2

a carrier dealer by going to carrier.com.

0:35.0

Happy Data Privacy Month from our friends at Centsy.

0:38.0

So I just found out the Data Privacy Month is a thing, who knew, it's January, and it is something I can get behind.

0:45.5

Celebrate by ensuring your customer's data remains safe and their own by utilizing a

0:51.0

Centsi smart thermostat.

0:52.9

Centsi never sells or uses a customer's personal data,

0:56.0

and with over 100 years of HVAT experience

0:58.5

between Copeland, White Rogers, and Centsi,

1:01.6

they know a thing or two about H.AC, as well as keeping things private.

1:06.0

Install a Centsi Smart Thermoset today and guarantee your customer's data privacy.

1:10.7

Visit HVECR School.com slash Centsi- Privacy, that's HVECR School.C.S.C.S.S.C. privacy. That's HVE.R School.com

1:16.0

slash Centsi-P. privacy for more information.

1:19.0

Navac and Navac Global.

1:21.0

And the Break Free Power Tube Bender model NTB 7L.

1:28.1

Seriously, this thing is really great, bends even large-sized tubing up to 7-8s

1:32.3

OD.

1:33.0

Find out more at truetech tools.com use the offer code get schooled for a great discount at

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