Trust the NEW Process: Embracing Evolution in HVAC Technology

In this episode of the HVAC School podcast, host Bryan and guest Jesse Stewart from NAVAC discuss the generational divide in the HVAC industry and the importance of embracing new technologies and processes. They explore the challenges faced by both experienced technicians who may be set in their ways and newcomers to the trade who need proper mentoring.

Jesse emphasizes the importance of respecting traditional methods while making way for new techniques. He discusses how bad habits can be passed down from mentors to apprentices, highlighting the need for continuous learning and adaptation in the rapidly evolving HVAC industry. The conversation touches on the importance of treating apprentices with respect and providing them with educational experiences rather than just menial tasks.

The podcast delves into specific HVAC practices, particularly focusing on evacuation and recovery processes. Jesse explains the significance of using proper tools and techniques, such as valve core removal tools, high-quality vacuum pump oil, and appropriate hoses for different tasks. He debunks common misconceptions about hose sizes and manifold use, providing practical analogies to help listeners understand these concepts.

Topics covered in the podcast include:

The generational gap in the HVAC industry and its impact on training and practices

The importance of continuous learning and adapting to new technologies

Proper mentoring techniques for apprentices

The “beer can cold” method and other outdated practices

The significance of using the right tools for evacuation and recovery processes

The impact of hose diameter on efficiency in evacuation and recovery

The importance of vacuum pump oil integrity

The differences between service, recovery, and evacuation hoses

Debunking the misconception about the impact of connection size on evacuation and recovery speed

The role of manifolds in modern HVAC practices

NAVAC's approach to developing tools based on customer demand while promoting best practices

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

Learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium.

Subscribe to our podcast on your iPhone or Android.

Subscribe to our YouTube channel.

Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android.

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Author:

Bryan Orr

Company: HVAC School

Position: Founder

Jesse Stewart

Check out our most recent video

How to Evacuate an AC system, Full Vacuum Procedure

Our latest Podcast

HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

In this episode of the Spidey Sense series, Bryan and Bert dive deep into the art of refrigerant leak detection, sharing their wealth of experience and practical tips for HVAC technicians. They emphasize the importance of using one’s senses and observation skills before relying solely on electronic tools, highlighting how this “Spidey Sense” approach is a hallmark of senior-level expertise in the field.

Visual and tactile cues, including warm suction lines, frosted components, and signs of oil, are vital. Different symptoms point to specific kinds of leaks and various scenarios, so you need to understand the behavior of the system.

Bryan and Bert also discuss the strategic application of soap bubbles, electronic leak detectors, and nitrogen for pressurization. Each method has limitations, and you’ll need to know when to employ them for maximum effectiveness. When detecting leaks, consider recent home renovations or equipment vibrations that might contribute to leaks.

Topics covered in the podcast include:

Visual and tactile cues for identifying potential refrigerant leaks
The debate on frosted lines as indicators of low refrigerant charge
Proper use of electronic leak detectors and their limitations
Strategic application of soap bubbles in leak detection
The importance of checking common leak locations (e.g., flare fittings, evaporator coils)
Considerations for leak detection in newly installed or recently serviced systems
The role of nitrogen in leak detection for systems with very low refrigerant charge
Estimating the severity of a leak based on system pressure and charge level
The pros and cons of isolation tests for line set leaks
Techniques for detecting very small, slow leaks that might not show up in pressure tests
The potential use of ultrasonic leak detection tools
The importance of thorough inspection and patience in the leak detection process

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium. Subscribe to our podcast on your iPhone or Android. Subscribe to our YouTube channel. Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android.