HVAC School - For Techs, By Techs

This episode focuses on understanding and effectively utilizing various refrigeration system charts and measurements for troubleshooting and diagnostics. Joey Henderson, an HVAC veteran and trainer, shares his wealth of knowledge and experience on this topic. Joey starts by discussing the challenges he faced early in his career when trying to make sense of the confusing charts with arrows indicating high, low, high head, low head, etc. He emphasizes the importance of knowing the "supposed to be" values before attempting any measurements or referencing charts. Without this baseline understanding, the measurements become meaningless. He then delves into specific measurements like subcooling, superheat, evaporator temperature/suction saturation, condenser split, and compressor amperage. For each measurement, Joey explains the ideal range, how to interpret deviations, and how different factors like humidity, airflow, and refrigerant type can affect these values. He also highlights the differences in approaches for fixed metering devices versus TXV/EEV systems. Topics covered in the podcast: Understanding refrigeration system charts and their limitationsImportance of knowing "supposed to be" values for meaningful diagnosticsMeasuring and interpreting subcoolingMeasuring and interpreting superheatDetermining evaporator temperature/suction saturationCalculating and understanding condenser splitEvaluating compressor amperageDifferences in charging fixed metering devices vs. TXV/EEV systemsImpact of humidity, airflow, and refrigerant type on measurementsUsing psychrometers and measuring wet bulb temperatures accuratelyCalculating and interpreting Delta T (wet bulb/dry bulb split)Resources like the Efficient Comfort website and Dick Wirz's RefTech app   Check out some of the resources discussed at https://efficientcomfort.net/. 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.

In this short episode, Bryan talks about wiring in condenser fan motors, including aftermarket motor considerations and the different wire configurations. When condensing fan motors fail, we need to know what to use to replace them. We often use PSC motors, though in cases when we replace a motor with an ECM, we still need to match the horsepower despite the increased flexibility. The motors we typically keep on our truck are 1/3 or 1/6 HP motors.  Frame size (diameter) and depth also come into play; you may encounter a 42-frame motor or a 48-frame motor. You can't replace an 825 RPM motor with a 1075 RPM one because the poles are different (6-pole vs. 8-pole). Single-phase 208/230v will be the most common motors in residential systems, and the phase and voltage must match. You should also know how to reverse a motor if it is reversible. The bearing type will have some tradeoffs; ball bearings last longer but are louder than sleeve bearings.  3-wire and 4-wire condensing fan motors are essentially the same; the white wire and brown-and-white wire are essentially the same, as there is a jumper inside the motor. You can connect a 4-wire condenser to both sides of the capacitor; in any case, follow the wiring diagram. When mounting a motor, make sure the wires are strapped properly. Then, remember to unplug the correct weep ports (opposite side of the shaft) to allow condensate to drain out.   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.

This podcast episode focuses on the critical shortage of HVACR technicians and installers across the industry. The hosts discuss the massive gap that exists, with estimates of nearly 200,000 open roles expected in the next few years. They are joined by Lenny Diaddario from Copeland's contractor services department and Chris Harris from the educational nonprofit National Coalition of Certification Centers (NC3). Lenny and Chris explain the various initiatives Copeland and NC3 have undertaken to help attract more people to the HVACR trades. This includes STEM education outreach to get kids interested from an early age, partnerships with organizations like SkillsUSA and PHCC, virtual reality training tools that allow interactive compressor teardowns, and comprehensive certification curricula developed in collaboration with subject matter experts and instructors. One major program they highlight is the "train the trainer" events where instructors from trade schools can get certified on the Copeland curriculum over an intensive week. They then take that knowledge back to their schools to teach and certify students as Copeland technicians. The goal is to build a strong foundational workforce of certified HVACR professionals. Topics covered include: The severe shortage of HVACR technicians and the need to fill rolesChanging the stigma around vocational education and trade schoolsAppeal of trades to younger generations for self-relianceCopeland's initiatives like STEM days, SkillsUSA, virtual reality trainersNC3's certification curricula and "train the trainer" instructor eventsCopeland's online/mobile training resources like apps and AI assistantIn-person training courses offered ranging from 1 day to multi-dayThe long-term vision for socioeconomic impact through a skilled trades workforce   Browse some of Copeland's training opportunities at https://www.copeland.com/en-us/training-support/hvacr-training.  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.

In this episode of the HVAC School Podcast, Bryan interviews Rachel Kaiser, a chemist with a passion for making science more accessible and understandable, especially when it comes to the topic of combustion. Rachel shares her background of how her family's restaurant business sparked her early interest in chemistry and the science behind mixing ingredients to produce desired results. Rachel dives deep into explaining the fundamental chemistry behind the combustion process. She breaks down the three key components required for combustion to occur - fuel, oxygen, and a heat source - and how the ideal chemical reaction is represented. However, she emphasizes that in the real world, factors like using natural gas (a mixture of gases) as fuel instead of pure methane and air (also a mixture) as the oxygen source lead to incomplete and imperfect combustion reactions. The discussion highlights the importance of combustion analysis and monitoring for byproducts like carbon monoxide (CO) and nitrogen oxides (NOx). Rachel stresses that testing is crucial not just for technician safety but to ensure proper combustion for occupants as well. High CO levels, for instance, indicate incomplete combustion and the likely presence of other undesirable compounds. Topics covered include: The chemistry definition of combustion/flameIdeal vs real-world combustion reactionsThe three requirements for combustionNatural gas as a fuel mixtureAir as the oxygen source and mixing considerationsCarbon monoxide and nitrogen oxides as byproductsThe role of combustion analysisUsing visuals/experiments to teach combustion chemistryApplying chemistry knowledge for troubleshooting   Connect with Rachel on LinkedIn and ask her more about chemistry in HVAC HERE. You can also view her presentation from the 5th Annual HVACR Training Symposium and/or purchase your virtual ticket to all sessions 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.

In this short episode of the HVAC School podcast, Bryan talks about hoses and their various types and applications, particularly focusing on NAVAC hoses. Charging hoses (NAVAC: NH5 and NH5L) ideally shouldn't be longer than 5-6 feet, as the longer the hose, the more refrigerant it will hold. Manifold gauges also have leak points, so it's usually better to use probes instead of manifolds to help with charging. Charging hoses with ball valves (NH5S and NH5SC) can help you control the flow and are great for recovery. Whenever you use charging hoses, they will have a core depressor on one side only (usually the 45-degree side, if applicable); the right amount should be exposed, and the seal should be in good shape. Larger-diameter hoses with higher burst pressure are advantageous for recovery (though it's better to have separate hoses for recovery and evacuation). Larger-diameter hoses of a shorter length will allow you to get a higher flow rate, including cases where you have 1/4" connectors (though the F1028 & F1029  Rapid Y connection fittings can help out with those cases where you have 1/4" connectors by giving you the ability to connect two 3/8" hoses); hoses with a diameter of 3/8" are usually the biggest recommended ones for recovery. NAVAC's recovery hoses are the NHR38AA and NHR38AB. Evacuation hoses are even bigger. Some good evacuation hoses include the NH34AB and NH34AC; they are short 3/4" hoses that are vacuum-rated and quite flexible. NAVAC also has smaller hoses, which tend to look more like recovery hoses. You do not want to use 1/4" hoses and core depressors for evacuation, but they are good for charging.   Check out all of the hoses NAVAC has to offer at https://navacglobal.com/products-by-category/hoses-kits/.  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.

In this episode of the HVAC School podcast, Bryan interviews Pat Ward, an HVAC technician who specializes in servicing and maintaining computer room air conditioning (CRAC) units for data centers. They dive deep into the unique challenges and setups involved in cooling these critical facilities. Pat provides an overview of data centers, explaining that they are essentially industrial-scale computer rooms that generate immense amounts of heat from the servers and need precise environmental controls. CRAC units are specialized air conditioning systems designed to maintain the temperature and humidity within tight parameters suitable for electronic equipment. Unlike typical comfort cooling, CRAC units supply air around 70°F to avoid excessive dehumidification. Humidity control is crucial, often requiring supplemental humidifiers or dehumidifiers. Pat discusses common configurations like air-cooled direct expansion (DX) units as well as chilled water systems with computer room air handlers (CRAHs). Redundancy is a major consideration, with units networked together to stage capacity and provide backup. The conversation covers many other topics related to data center cooling such as: Using economizers and free cooling with outdoor air when conditions allow Potential issues with mildly flammable refrigerants in these applications Typical maintenance tasks like coil cleaning, filter changes, and refrigerant checks Accessing and navigating the control systems which often require passwords Advice for technicians new to working on CRAC units, like studying the equipment layout The massive scale of large data center installations with arrays of 20+ CRAC unitsCauses of overheating and how to avoid themGrowth opportunities in the CRAC niche of HVAC   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.

In Part 2 of the Rack Refrigeration Class at Kalos Services, Matthew Taylor discusses safeties, service, and more. Part 1 focuses more on the basic refrigeration circuit of a rack refrigeration system. When safeties are piped together, we have to keep in mind that they're a bit more complex than most HVAC refrigeration systems, especially when it comes to the oil side. All of these safeties and their proper installation can be located on the wiring diagrams. Safeties often respond to pressure, both in the refrigerant circuit and the oil circuit, but they may also respond to amperage or temperature. Each compressor on a rack has its own safety controls, but all compressor safeties should be wired in series. Overloads may measure temperature or amperage and break the circuit if it detects unsafe conditions. We also deploy demand cooling strategies to cool the compressor and help control compression ratios. We can also control capacity with staging strategies. Mechanical controls may be able to communicate with electronic controllers, but these cases are less common in conventional rack systems.  Matthew also covers: Pop-offs and high-pressure switchesOverloads and misdiagnosed compressor failuresSentronic oil pressure controlsMechanical and electronic controlsAdjusting metering devicesLiquid and vapor injectionSubcooling and interstage coolingSuction filters and when to use themService valves, hoses, and depressing Schrader cores for checking chargeRestrictions in the refrigerant circuitAccumulatorsPressure transducers and troubleshootingMechanical and electronic time delaysBypassing safeties in mission-critical applicationsCompressor staging and unloaders   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.

This episode dives into an interesting and pragmatic discussion about how HVAC contractors can better balance their workload throughout the year. Kevin from Haven shares insights from observing HVAC businesses across the country and how some are taking a more strategic approach to triaging work. The main idea is to get systems up and running in the peak summer months when demand is highest, while also collecting data and making notes for more in-depth commissioning, ductwork upgrades, IAQ improvements, etc. that can be tackled in the fall "shoulder season." The hosts discuss the market forces that drive the typical reactive cycle - consumers waiting until systems fail to call for service, companies prioritizing new equipment installs when demand is high to boost revenue, etc. However, they propose a model where contractors are more proactive about maintenance, communication, and expectation-setting. Install the right-sized equipment over the summer, document issues to revisit later, use data loggers to analyze system performance, and then circle back in fall/winter for comprehensive commissioning when there is more availability. This allows delivering better quality work while smoothing workload across more months. The episode covers several key points and considerations, including: Prioritizing load calculation and properly sizing equipment upfrontDeploying IAQ monitors to identify issues like humidity controlOffering full-scope solutions and letting customers decline unneeded servicesShifting technician roles seasonally between installs and commissioningDeveloping standard workflows and checklists for each phasePotential business benefits like retention by providing growth opportunities Overall, it presents a balanced, practical approach for HVAC businesses to improve quality, reduce stress during peak seasons, and keep technicians engaged through varied work. As Kevin notes, it's a model more contractors could adopt with training and open-sourced best practices.   If you are interested in the workflows discussed in the podcast, you can become a HAVEN pro today at https://pro.haveniaq.com/. You can also email Bryan about summer triage strategies at bryan@hvacrschool.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.

In this insightful episode of the HVAC School Podcast, Ty Branaman, an exceptional educator and trainer, shares his unique approach to making learning not just effective but also engaging and memorable. He delves into the art of connecting with students, unlocking their curiosity, and fostering a love for learning. Ty emphasizes the importance of understanding that not all students learn in the same way. He advocates for finding creative ways to capture their attention and spark their interest, whether through hands-on experiments, relatable analogies, or thought-provoking demonstrations. By tapping into students' existing experiences and curiosities, Ty creates an environment where learning becomes an exciting adventure rather than a chore. One of the key takeaways from the conversation is the power of the Socratic method. Ty encourages educators to ask questions that challenge students' assumptions and encourage them to think critically about the subject matter. By fostering a sense of exploration and discovery, students become active participants in their own learning process, leading to deeper understanding and retention. Topics Covered: ·        Igniting curiosity and making learning engaging ·        Utilizing everyday objects and relatable analogies to explain complex concepts ·        The Socratic method: Encouraging critical thinking through questioning ·        Creating emotional connections through humor, surprise, and joy ·        Overcoming frustrations and challenges in the teaching process ·        Building a supportive community of educators and learners ·        Embracing mistakes and seeing them as opportunities for growth ·        Finding creative ways to connect with different learning styles ·        The importance of patience and perseverance in the teaching journey Overall, this podcast episode offers valuable insights for educators, trainers, and anyone passionate about fostering a love for learning. Ty's infectious enthusiasm and creative approach serve as a reminder that education can be a transformative and rewarding experience when approached with empathy, creativity, and a genuine desire to ignite the spark of curiosity in every learner.   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.

This podcast episode is Part 1 of a Kalos class on rack refrigeration given by Matthew Taylor. This first segment focuses on the basic refrigerant circuit and oil management of a parallel rack system, common in market refrigeration. Parallel racks follow the same general process as any other compression refrigeration system. However, they contain multiple compressors on a single rack. These systems have multiple suction lines that tie into one single suction header that feeds into multiple compressors. The suction side of the piping is usually a long distance with varying elevations; risers are vertical stretches of piping that carry oil and refrigerant up and pose a challenge for oil return. The compressor takes low-pressure vapor on the suction side and turns it into high-pressure vapor on the discharge side. From there, the condenser rejects heat from the refrigerant, which brings the superheated vapor down to saturation temperature and further rejects heat to make the refrigerant fully liquid (subcooled). Metering devices drop the pressure of the refrigerant, and the cases contain evaporators that absorb heat and boil off refrigerant, which travels to the compressors via the suction lines. Parallel racks come in multiple varieties, but the ones in this podcast are of the direct expansion (DX) variety. Saturation remains a critical principle in these systems: superheat, subcooling, and the pressure-temperature relationship all drive system operation.  Matthew also covers: Different types of rack refrigeration systemsCustomized variations between racks Looking up case information and reading legendsOil return and controlling velocityMechanical subcoolingFull load amps (FLA) and locked rotor amps (LRA)Temperature glide: dew point, bubble point, and midpointEPR installationEvaporator efficiency and superheatCompressor typesCompression ratio and liquid or vapor injectionOil management components and controls   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

Standard 310 is a technical workflow created by ACCA, ResNet, and ANSI for grading the installation of HVAC systems, typically in new home construction. It plays a crucial role in obtaining Energy Star certification, which can qualify homeowners for tax credits under the Inflation Reduction Act. The five steps of Standard 310 are design review, duct leakage test, total system airflow, blower fan watt draw, and refrigerant charge verification. In this podcast episode, host Bryan Orr is joined by guests Chris Hughes and Eric Kaiser to discuss Standard 310 and its implications for HVAC contractors. The standard aims to ensure that HVAC systems are installed correctly and operate as designed. The process involves a third-party HERS rater conducting various tests and measurements, which contractors need to be prepared for. Proper duct sealing, airflow settings, and refrigerant charging are critical for passing the assessments. One of the challenging aspects highlighted is the refrigerant charge verification step. The standard requires either non-invasive testing (which has temperature limitations) or weigh-in verification with geotagged photos. Chris Hughes suggests manufacturers could develop more consistent commissioning protocols to streamline this process. Topics covered in the podcast: Overview of Standard 310 and its five stepsImportance for Energy Star certification and tax creditsRole of HERS raters and HVAC contractorsDuct leakage testing and proper sealingAirflow measurement methodsBlower fan watt draw challengesRefrigerant charge verification optionsNeed for consistent commissioning protocolsCoordination and documentation requiredFuture improvements to the standard   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

In this short Q&A podcast episode, Bryan answers Gunther's question about kitchen exhaust and makeup air. Gunther asked if there were any studies that showed that makeup air should come very close to the hood to avoid infiltration. He also asked how to educate others who push back against the idea, particularly in kitchen exhaust systems of around 600 CFM. Commercial facilities, especially restaurants, bring in makeup air to balance out the air being exhausted. There are costs associated with makeup air, but there are plenty of valid reasons to add it to residential structures. Being able to control the makeup air allows us to control where we bring air in from (especially when it comes to drawing in humid air or dirty attic air from gaps and cracks, particularly in vented attics). Open-combustion appliances in the building envelope are also prone to backdrafting if the structure is under negative pressure. The structure is also more likely to have its dryer vents experience leaks under negative pressure.  The International Residential Code (IRC) (section M1503.6.2) requires makeup air when you have an exhaust system >400 CFM. The Florida Residential Code (section M1503.4) requires kitchen exhaust systems exceeding 400 CFM to have makeup air at approximately the same rate as the exhaust rate. Furthermore, the Florida Mechanical Code (section 505.2) specifies that kitchen exhaust systems exceeding 400 CFM must have makeup air to balance the air pressure and ensure proper ventilation.   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

This episode featured Bryan Orr interviewing Sam Myers, the building science consultant at Retrotec. Retrotec manufactures products like blower doors and duct testers for measuring air tightness and leakage in buildings. Sam discussed his role at Retrotec, which involves training contractors on using their tools properly, product design, software testing, presenting at conferences, and running trade show booths. He talked about the demanding travel schedule this requires but also the rewards of educating the industry. The main topic was duct leakage testing - why it's important, how it's done, interpreting the results, and investigating and fixing duct leaks when problems are found. Sam explained that while a duct leakage test provides a number, that number alone doesn't indicate if the leakage is acceptable or problematic. However, it points technicians in the right direction for further investigating issues like comfort problems, indoor air quality concerns, or high energy bills. He provided tips on using tools like smoke tests and thermal cameras to visually identify leaks, checking common leak areas like connections and return duct penetrations, and the value of testing before and after making repairs to verify the work. Sam also discussed using low-cost manometers for other tests, like checking room pressure imbalances caused by duct leaks. Topics covered included: Sam's role and work at RetrotecThe importance of duct leakage testingHow duct leakage tests are performedInterpreting duct leakage test resultsCommon duct leak sources like connections and return penetrationsMethods for pinpointing and verifying duct leaksUsing manometers for other diagnostic testsTips for contractors getting started with duct testing   Learn more about Retrotec's resources at https://retrotec.com/.  Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

In this short Q&A podcast episode, Bryan answers Jeremy's question about checking the charge on rooftop units, and he gives some RTU tips. Rooftop units often come in sets, so you can use a thermal camera to look at all of the RTUs and compare them. A thermal imaging camera may even show you where subcooling begins in the condenser, which can be a useful diagnostic hack. Try to avoid hooking up gauges each time you check the charge on a rooftop; RTUs have a fixed factory charge, and losses from your gauges can add up over time. Your senses will also come in handy; check for odd sights, sounds, and smells. Checking suction pressure and superheat is less risky and imperfect, but it'll give you some diagnostic data. You can also check discharge temperatures to check for signs of compressor overheating (remember: 225 stay alive).  Here are some tips for RTUs: Get familiar with the service manual and wiring diagrams; these items will help you with the job and help you build on your knowledge of RTUs in general.Make sure you have all of your materials at the ready, including extra screws.Make sure you have access to the BAS system, if necessary.Safety is critical on rooftop units, especially when it comes to ladders, lockout/tagout, and ensuring that you have safe access to the unit (this burden is often on the client). Pay attention to specialized equipment, including ERVs and economizers.Be mindful of curb installation, transformer taps, and phase monitoring, as those items may not be set up properly.Build up a basic working knowledge of variable frequency drives or VFDs (or know where to find information about them; THIS livestream is a good start),Keep systems clean to prevent overheating.Prevent oil logging whenever you have to replace a compressor.   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

This episode features an insightful conversation with Brynn Cooksey, an experienced HVAC contractor and trainer from Southeast Michigan. Brynn shares his expertise in conducting proper load calculations, sizing the equipment correctly, improving duct design, and addressing common issues contractors face. Brynn emphasizes the importance of performing accurate load calculations, especially in older housing stock where equipment is frequently oversized by 50% or more. He discusses how oversized equipment leads to short cycling, poor efficiency, and increased utility costs for homeowners. His approach involves educating customers by involving them in the measurement process and using metrics like "duct deficiency" to demonstrate the inefficiencies of their current systems. The discussion then shifts to heat pumps and the unique challenges of implementing them in cold climates like Michigan. Brynn advocates for a "dual fuel" approach, utilizing heat pumps for efficiency while supplementing with gas heat during extremely cold temperatures. He stresses the necessity of a tight, well-insulated thermal envelope and proper duct design to ensure optimal heat pump performance. Topics covered include: Conducting blower door tests for accurate load calculationsDownsizing equipment and solving duct issues in retrofit applicationsThe "duct deficiency" metric for demonstrating system inefficienciesAeroseal duct sealing: benefits, limitations, and proper applicationIdentifying and addressing cracked heat exchangers due to airflow issuesTraining sales teams on a hands-on, educational sales processThe importance of building science education for contractorsOvercoming hesitancy in trusting load calculation results Brynn encourages contractors to embrace building science principles, trust the load calculation process, and focus on system design rather than simply swapping out equipment. By proving these methods to themselves, contractors can transform their businesses and deliver true value to customers through improved comfort, efficiency, and cost savings.   Learn more about HVAC U and its course offerings at https://www.hvactrain.com/.  Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

In this short Q&A episode, Bryan answers podcast listener Cooper's question about starting an internal training program. Eugene Silberstein has been on the podcast before to offer his perspective on this topic, which you can listen to HERE.  Bryan recommends a combination approach: instructor-led, hands-on, and self-paced learning, all deployed together. Hands-on learning often gets missed, and we can give inexperienced techs experience with some basic troubleshooting tasks or breaking down and reassembling things. The Socratic method can also be employed here; the instructor can ask their trainees questions instead of the other way around. When the instructor is the one who asks the questions, they allow their trainees to be wrong, learn from their mistakes, and make their own connections to the fundamentals. Learning plans and curriculums are great for giving trainees a structure, but they need to be reinforced with the hands-on component in this trade. When determining what to teach, try to focus on what's most important in your market—the first area of effectiveness—and then understand how to reinforce it. The continuous growth mindset is also critical; the apprenticeship phase is never truly over, and the instructor needs to be able to improve their program over time without letting the idea of unattainable perfection discourage them from giving their training.   You may also read our tech tip about setting up an internal training program and our recent SkillCat guide if you want to deploy training in your business. The ESCO All Access Subscription Bundle for the HVACR Learning Network is another excellent resource. Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

This podcast episode is Bryan Orr's presentation at the 6th Annual HVACR Training Symposium: "Humility in Thought Leadership." Bryan reflects on his own journey as a trades educator, business owner, husband, and father, sharing personal anecdotes and insights that resonate with anyone in a position of influence. Bryan begins by acknowledging the challenge of maintaining humility in the face of success and recognition. He emphasizes the need to continually shift our focus from a mindset of "deserving" to one of "serving" others. By embracing humility, we not only become more effective leaders but also create an environment where those around us can grow and thrive. Throughout the episode, Bryan encourages listeners to embrace vulnerability and be open to feedback from those who care about them. He stresses the importance of surrounding oneself with people who are willing to hold you accountable and challenge you when necessary. This accountability, he argues, is crucial for personal growth and maintaining a grounded perspective. Here are some of the key topics covered in the symposium presentation: The importance of empathy and understanding others' perspectivesThe distinction between personal humility and professional prideThe dangers of ego and how it can disconnect us from realityThe role of introspection in fostering humility and self-awarenessThe impact of how we process memories on our perception of realityThe need to listen to those actively working in the field and remain connected to practical realitiesThe value of being open to constructive criticism and admitting when we're wrongThe joy of seeing others grow beyond us and the importance of letting go of the need for control   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

This short podcast is a Q&A based on a question submitted to us by Andy Holt. Bryan gives some tips on how to go from service tech to service manager. Service managers may have better pay, but they also have different sources of stress than service technicians, and not all service tech skills will translate well to management. Service techs and service managers have completely different skill sets, and they have to be able to gain satisfaction from different sources. Service techs are satisfied by solving problems, and they get immediate dopamine hits whenever they use their brains and hands to fix someone's AC. Service managers have to find satisfaction in big wins for their team. Service managers have to manage processes and procedures around customer service; they are involved with customer service representatives and dispatchers. They also handle the most difficult clients and situations, so they need to be able to resolve conflict and stay calm in tense situations. Good service managers also learn to share wins with their teams and speak publicly so that they can inspire and motivate their teams. Service managers also manage finances, review reports, and send emails, so they need the skills necessary to do that, including writing skills (or technology to assist with writing skills). Leadership roles also require you to represent the policies and procedures of your organization, regardless of how you feel about them. These requirements may put a strain on interpersonal relationships.   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

This episode was recorded live on location at the 2024 ACCA conference in Orlando. Bryan starts by interviewing Marissa, a co-founder of Conduit Tech, a software company providing load calculation and sales tools for HVAC contractors. Marissa shares insights into what it takes for contractors to successfully adopt new technology in their businesses. She emphasizes the importance of having support at multiple levels of the company, a willingness to thoroughly learn the new software, and providing feedback to the developers. Marissa stresses that Conduit actively seeks input from contractors to continue improving their product's workflow integration. Learn more about Conduit Tech at https://getconduit.com/.  In the second segment, Bryan talks to Martin Hoover, the incoming chair of ACCA (Air Conditioning Contractors of America). Martin discusses the value ACCA provides through training, advocacy, and facilitating peer group interactions. He highlights how ACCA conferences allow contractors to learn from industry leaders and gain valuable perspectives in the hallways between sessions. The episode covers a range of topics relevant to HVAC contractors, including: Adopting new technology and providing productive feedback to software developersAssessing whether a new product will truly transform your workflow based on customer testimonialsThe benefits of joining ACCA, such as training, advocacy, and peer networking opportunitiesChallenges facing the industry, like labor shortages and rising costsThe importance of understanding your financials and pricing for future costsPreparing for the transition to A2L refrigerants and associated changes Whether you're a contractor looking to improve your business or a technician striving for success, this episode offers valuable insights from industry experts on leveraging resources, adopting new tools, and positioning yourself for the future of HVAC.   Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.  Purchase your virtual tickets for the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.  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.

In this insightful podcast episode, the host delves into the crucial aspects of positive and productive client communication, drawing from his extensive experience in the residential air conditioning industry. He emphasizes the importance of setting the right tone, bringing energy, building trust, and adapting to different customer personalities when interacting with clients. The host highlights the key elements of positive communication, such as maintaining a consistently upbeat and enthusiastic demeanor, while also being mindful of the client's preferences. He stresses the importance of active listening, to truly understand the customer's needs and concerns, rather than simply waiting for your turn to speak. The host also touches on the challenges of dealing with difficult customers, such as those who are overly focused on price or technical details, and provides strategies for navigating these situations with patience and professionalism. The discussion then shifts to the productive side of client communication, emphasizing the importance of being clear, precise, and solution-oriented. The host delves into the pitfalls of being a "yes-man" and making promises that are difficult to follow through on, and instead encourages a more assertive and responsible approach. He emphasizes the need to take ownership of one's words and actions, ensuring that any commitments made to the client are followed through with diligence and care. The podcast also touches on the significance of situational awareness, wherein the host encourages technicians and salespeople to adapt their communication style based on the client's background and personality. Whether it's an aerospace engineer, a computer programmer, or a contractor, the host provides insights into how to tailor your approach to best serve each individual client. Key Topics Covered: Positive communication: Setting the tone, bringing energy, building trust, and adapting to customer personalitiesProductive communication: Importance of being clear, precise, and solution-orientedAvoiding the "yes-man" trap and taking responsibility for one's words and actionsSituational awareness: Adapting communication style based on client background and personalityDealing with difficult customers and navigating challenging conversationsThe value of honesty and truthfulness in client interactionsImportance of initial conversations and following up on commitments made to clientsBalancing empathy and professionalism when addressing clients' personal issues or concerns By addressing these critical aspects of client communication, the podcast provides invaluable insights for professionals in the HVAC industry and beyond, highlighting the key strategies for fostering positive and productive relationships with customers. 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 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24. If you have an iPhone, subscribe to the podcast HERE, and if you have an Android phone, subscribe HERE.” Subscribe to our YouTube channel at https://www.youtube.com/@HVACS.  Check out our handy calculators HERE or on the HVAC School Mobile App (Google Play Store or App Store).