711 episodes

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

HVAC School - For Techs, By Techs Bryan Orr

    • Business
    • 4.9 • 944 Ratings

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

    Trust the NEW Process: Embracing Evolution in HVAC Technology

    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and adapting to new technologies Proper mentoring techniques for apprentices The "beer can cold" method and other outdated practices The significance of using the right tools for evacuation and recovery processes The impact of hose diameter on efficiency in evacuation and recovery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  
    Check our NAVAC's entire product line at https://navacglobal.com/. 
    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.

    • 38 min
    Soft Start & Solar - Short #202

    Soft Start & Solar - Short #202

    In this short podcast episode, Bryan dives into soft start & solar technology, which often work together. He also talks about how we can install ductless systems in homes that rely on solar power.
    Soft starts are NOT hard starts. Hard starts add more current to the start (auxiliary) winding, which creates a stronger phase shift. Instead, soft starts control the current on the start and run windings and provide just enough of a phase shift to ramp up the motor slowly; it provides a regulated power supply, which means that a slow startup doesn't necessarily cause overheating because there is no locked rotor condition.
    We can use soft starts on two-stage compressors but need to make sure the compressor goes up to high speed during the starting sequence. Soft starts "learn" the compressor's cycles, so we need to make sure they are trained to reach the high stage, not the low stage. In systems with multiple compressors, we need to have a separate soft start for each compressor. We don't need to use soft starts on inverter-driven or variable frequency drive (VFD) systems.
    Soft starts also make sense in systems that rely on solar technology. Solar technology may be on-grid (where we sell back energy during peak times) or off-grid (where energy is banked). Ductless systems can work with solar energy, but they must be connected to the grid or the bank. Banked solar energy doesn't need to be rectified in the same way that AC power from the electrical company does, which may be advantageous for ductless systems that rely on DC-driven technology.
     
    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.

    • 10 min
    Make Summer Work for You w/ Matt Bruner

    Make Summer Work for You w/ Matt Bruner

    In this episode of the HVAC School podcast, host Bryan Orr welcomes Matt Bruner to discuss the concept of a "summer survival guide" for HVAC professionals. They explore strategies for maintaining work-life balance during the busy summer season and share personal experiences on prioritizing family and personal well-being while managing the demands of the HVAC industry.
    The conversation delves into the importance of intentional planning before the summer rush begins. Matt shares how he and his family implement practices like scheduling an end-of-summer vacation, utilizing daycare services, and outsourcing lawn care to create more family time. Bryan emphasizes the need for financial discipline, avoiding impulsive purchases, and instead investing in services that can alleviate stress and create more personal time.
    The discussion turns to the challenges of people-pleasing tendencies in the workplace and with clients. Both hosts stress the importance of setting boundaries, learning to say no, and prioritizing one's own family and well-being over excessive work hours or unreasonable client demands. They also touch on the evolution of the HVAC industry, discussing how younger workers are bringing a fresh perspective on work-life balance and how businesses are adapting to these changing expectations.
    Key topics covered in the podcast:
    Creating a "summer survival guide" for HVAC professionals Strategies for maintaining work-life balance during peak seasons Financial planning and discipline to support personal priorities Setting boundaries with employers and clients The evolution of work culture in the HVAC industry Balancing the desire to help customers with personal and family needs Implementing business practices that reduce stress and improve quality of life The importance of contentment and avoiding the trap of constant comparison Adapting service hours and availability to suit personal and family needs Overcoming the urge to always be available and learning to prioritize personal time  
    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.

    • 44 min
    How do Inverter Air Conditioners Work? - Short #201

    How do Inverter Air Conditioners Work? - Short #201

    In this short podcast episode, Bryan answers a listener-submitted question: How do inverter air conditioners work?
    Inverter-driven systems have variable capacity to match loads. We can provide cooling or heating BTUs to match the needs of the space without overcompensating or undercompensating and causing temperature swings. Load matching also helps us get better efficiency out of the system. High-humidity climates also benefit from load matching, as equipment doesn't dehumidify well unless it has been running the entire time.
    When set up and designed properly, variable frequency drives (VFDs) improve comfort, efficiency, and even dehumidification. You can "overclock" your compressor to get more BTUs out of it without oversizing, particularly when you have high heating loads due to the cold weather.
    Inverter-driven equipment takes AC power in, runs it through a rectifier circuit, and turns it into rough power that resembles DC power. The current is then smoothed out and goes through the inverter bridge circuit. Unlike an analog AC wave, we rely on pulse-width modulation (PWM) to simulate three-phase power and control the motor speeds according to a space's needs.
    We typically troubleshoot residential inverter-driven equipment by following the manufacturer flowcharts and possibly by communicating with tech support. Commercial VFDs are external to the motors and tend to be a bit more universal rather than manufacturer-specific.
     
    Watch the livestream about VFDs & inverters with Matthew Taylor and Corey Cruz HERE, and you can also watch the livestream about cold climate heat pumps with Ross Trethewey and Russ King HERE.
    Learn more about NCI's High-Performance HVAC Summit at https://www.gotosummit.com/. 
    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.

    • 10 min
    How to Size Dehums w/ Tim De Stasio

    How to Size Dehums w/ Tim De Stasio

    In this episode of the HVAC School podcast, host Bryan Orr interviews Tim De Stasio, an experienced HVAC practitioner and consultant. Tim shares his journey in the HVAC industry, from his early days in vocational school to running his own contracting business for 12 years. He now focuses on consulting, design, and contractor training, allowing him to pursue his passion for HVAC while sharing his knowledge with others.
    The conversation delves deep into the world of dehumidifiers, exploring their importance in modern HVAC systems, especially in humid climates. Tim emphasizes the need for supplementary dehumidification in many homes, particularly during part-load conditions when air conditioning systems may not effectively control humidity. He explains the process of selecting and sizing dehumidifiers, stressing the importance of considering factors such as peak latent load conditions, actual dehumidifier performance under real-world conditions, and static pressure effects on output capacity.
    The discussion also covers the critical role of proper envelope sealing and ductwork in managing humidity. Tim advocates for addressing these issues before installing a dehumidifier, highlighting the importance of blower door testing and fixing any leaks. The podcast concludes with insights on dehumidifier control strategies, the limitations of ERVs in humidity control, and the potential risks associated with uncontrolled outdoor air introduction into HVAC systems.
    Key topics covered in the podcast:
    Tim De Stasio's background and transition to HVAC consulting and training The importance of supplementary dehumidification in various climates Selecting and sizing dehumidifiers based on peak latent load and real-world performance The impact of static pressure on dehumidifier output capacity The necessity of addressing envelope and ductwork issues before installing dehumidifiers Strategies for controlling dehumidifiers in conjunction with AC systems Myths about dehumidification, including misconceptions about variable speed equipment and ERVs The potential risks of uncontrolled outdoor air introduction and the importance of proper ventilation strategies Resources for learning more about dehumidification and HVAC best practices  
    Contact Tim at timdestasiohvac@gmail.com or follow him on LinkedIn HERE. You can also follow David Schurk on LinkedIn HERE.
    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.

    • 51 min
    Teaching Communication Confidence - Short #200

    Teaching Communication Confidence - Short #200

    In this short podcast episode, Bryan shares some strategies for teaching communication confidence, which may come in handy if you have newer techs who feel nervous or struggle to communicate with other people.
    The main way to build confidence is to get them to talk in the first place. Scripts and roleplay scenarios during training can help get people used to speaking and give them a reference. Whether we're in sales or not, we have to share information and complete business transactions. Roleplaying those conversations in a controlled, familiar setting allows your more timid team members to put in the reps.
    The youngest generation in the workforce tends to be exceptionally uncomfortable talking compared to others; they often prefer to communicate via text. These techs can learn a lot from spending time with customer service representatives (CSRs), especially in difficult situations with upset clients. Then, you can address the non-verbal cues that also play a massive role in in-person communication.
    At Kalos, we have developed software that allows people to record voice memos that are then transcribed. We combine this with soft skills training to help build confidence in our team members so that our leaders can understand what their teams are doing. Communication also starts at the top, so leaders must be honest with themselves about their communication skills and how well they regulate emotions and positively convey information. Leaders are also ultimately the ones who are responsible for understanding their team's communication gaps and creating the guidelines.
     
    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.

    • 7 min

Customer Reviews

4.9 out of 5
944 Ratings

944 Ratings

1991catfish ,

Can’t stop listening since I found this

As a newer tech to the field this podcast has helped me. As I work I listen to to this and have actually passed on to management to tell other tech just to listen. This is great keep it up!

Tstat tetras ,

Second to none

I am really grateful for the positive and humorous approach Brian and his guests take to expanding on the HVAC field. I’ve got them playing in my ear a lot of the time while I’m thinking through service calls. Excellent information about doing things right and avoiding inevitable headaches.

Allvol2 ,

New tech

I am a new tech and trying to learn all this at once is hard. Love the podcasts cause I can replay them over and over to help me remember everything while I am doing window time.

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