HVAC Techs Change System Design for New Refrigerants and Zoning Rules - Daniel Carrillo Part 1

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Daniel Carrillo, Technical Sales and Training Expert at Airzone Control, to talk about A2L refrigerants, VRF zoning, and how new mitigation standards are changing HVAC system design. They discuss the challenges of using A2L equipment in residential and commercial spaces, how zoning systems can help improve airflow and safety, and why proper training is important for contractors. The conversation also covers common installation issues, communication errors, wiring practices, and how ducted zoning systems can improve comfort, efficiency, and room-by-room temperature control.

In this conversation, Daniel and Gary discuss how A2L refrigerants are changing HVAC system design and why new mitigation standards are important for safety and airflow control. Daniel explains how zoning systems can help manage refrigerant dilution, improve comfort, and support better efficiency in VRF and ducted applications. Daniel and Gary also cover common installation issues, communication errors, wiring practices, and the importance of proper training when working with advanced zoning equipment and A2L systems.

Expect to Learn:

• How A2L refrigerants are changing HVAC equipment and installation standards.

• How mitigation standards help improve safety and refrigerant dilution in occupied spaces.

• How zoning systems can improve comfort, airflow control, and energy efficiency.

• How communication errors and wiring issues can affect VRF and zoning equipment.

• How proper training and support can help contractors work with advanced HVAC systems.

Episode Highlights:

[00:00] - Sponsor Ad: Factory Direct Filters

[00:42] - Intro to Daniel Carrillo in Part 1

[03:00] - A2L is slightly flammable, brings new regulations and mitigation standards

[06:26] - How A2L affects VRF zoning - ductwork helps comply vs. wall mounts

[09:32] - Top tech support tips: same supplier, training, don't fear calling

[11:24] - Most common field issue: communication errors from loose connections

[15:03] - Advantages of ducted zoning: fine-tuned air, no oversizing, better humidity control

[19:08] - Four-room example - each room has its own climate, unused rooms get no air

This Episode is Kindly Sponsored by:
Cintas: https://www.cintas.com/hvacknowitall

Cool Air Products: https://www.coolairproducts.net/

Factory Direct Filters: https://www.factorydirectfilters.com/

SupplyHouse: https://www.supplyhouse.com/tm
Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Daniel Carrillo on:

LinkedIn: https://www.linkedin.com/in/daniel-carrillo-922262305/

Airzone Control - LinkedIn Profile: https://www.linkedin.com/company/airzonecontrol/

Airzone Control - Website: https://www.airzonecontrol.com/as/en/

Follow the Host on:

LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/

LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc

Website: https://www.hvacknowitall.com

Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

Instagram: https://www.instagram.com/hvacknowitall1/

Follow the Podcast on:

YouTube: https://www.youtube.com/@HVACKnowItAll

Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

Apple Podcast: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455