HVAC School - For Techs, By Techs
726 episodes - English - Latest episode: 10 days ago - ★★★★★ - 924 ratingsReal training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.
Homepage Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Episodes
Pilot Controls - Short #147
June 14, 2022 11:00 - 7 minutes - 9.89 MBIn this short podcast episode, Bryan talks about pilot controls. He talks about the old-school ignition systems on gas appliances and some similar pilot functions on residential A/C units and heat pumps. When we think about a pilot light on a gas appliance, we can think of it as a small standing flame that sits there ready to ignite the burner whenever gas is flowing. Pilot lights were necessary for old-school gas furnaces, and many of those pilot lights worked with a thermocouple. In many...
Ethics - Grit and Discipline
June 09, 2022 11:00 - 25 minutes - 35.9 MBBryan and Robert Orr continue their discussion about ethics by talking about what it means to have grit and discipline in business. They talk about what those characteristics look like in business and in life, and they mention some good books. Grit is a trait that can contribute to an ethical way of life; showing grit means that you follow through with a project until you get the results you want. Both physical and emotional grit are strengths, and those things tend to be more important th...
Ethics - Integrity
June 02, 2022 11:00 - 33 minutes - 46.4 MBBryan and Robert Orr talk about ethics and what it means to have integrity when running a family business. Robert is a lifelong tradesman who is a licensed construction contractor, and he has overseen the construction side of Kalos for many years. Robert initially started off at the Air Force Academy and realized that he didn’t feel that the military was right for him. While in Florida, Robert fell into the trades and learned both hard skills and ethics in the process. He started his own h...
Distributors and External Equalizers - Short #146
May 31, 2022 11:00 - 10 minutes - 14.3 MBIn this short podcast, Bryan talks about distributors and external equalizers and why we need to use them together. When older Carrier heat pumps (with pistons) would run in heat mode, the metering device would be outside. In those cases, the port on the liquid line would be on the opposite side of the metering device. So, you wouldn’t actually be measuring the liquid line pressure (high-side) if you measured it at that port while the system runs in heat mode. However, that pressure woul...
Center-Tapped Transformers - Short #145
May 24, 2022 11:00 - 11 minutes - 16.2 MBIn this short podcast episode, Bryan talks even more about sine waves and center-tapped transformers. Power is generated at the power plant when an energy source (such as steam) is used to drive a drive shaft. The resulting current can be mapped as sine waves, which actually represent points on a circle; there is a rotational magnetic field around stationary conductors, and the sine waves allow us to envision the positive and negative alternations as the rotation happens. Center-tapped t...
Beer & Power Factor - Short #144
May 17, 2022 11:00 - 15 minutes - 21.5 MBBryan describes the tricky concept of power factor and why we should care about it. He also compares power factor to a beer mug to make the topic easier to understand. Power is often represented on a sine wave, which is a curvy line that marks the state of electrical energy at different points on a circle. Power gets stronger and weaker, and it goes above and below the neutral line depending on the excess or deficit of electrons. Unity power factor refers to a power factor of 1, indicati...
Motor Speed Facts - Short #143
May 10, 2022 11:00 - 9 minutes - 13.9 MBBryan lays down some motor speed facts in about 10 minutes in this short podcast episode. We can figure out how quickly a single-phase motor (PSC) will run if we understand how many cycles it will make per second. In the USA, the standard hertz is 60 Hz (60 rotations or magnetic alternations per second). Motors are inductive loads that create an electromagnetic field with a spinning rotor and stationary stator; the amount of poles on the stator determines how quickly the rotor spins (RPM)....
Value Design in High Performance Home HVAC w/ Comfort Squad
May 05, 2022 11:00 - 53 minutes - 73.8 MBNeil Comparetto and John Semmelhack of the Comfort Squad join Bryan to discuss high-quality value design in a high-performance home. They explain how they design HVAC systems (heat pumps) for low-load homes in ways that are affordable, efficient, and comfortable. High-performance, low-load homes need to be energy-efficient AND comfortable, and it can be a challenge to get both. Manual J calculations aren’t as common as they probably should be, and it can be difficult to get accurate data a...
Putting Contractor Success First w/ METUS
April 28, 2022 11:00 - 36 minutes - 50.7 MBLacey Dietz with METUS and Scott Arnold with Rycor HVAC join the podcast to talk about how the industry can start putting contractor success first. They talk about Mitsubishi Electric (METUS)’s commitment to contractor success and what that looks like. METUS’s contractor program aims to provide training, support, and recognition to create a community of successful contractors. Support comes in the form of marketing, training, tech support, and customer service, and those services are avail...
Retrotec - IBS 2022
April 26, 2022 11:00 - 8 minutes - 12.1 MBSam Myers with Retrotec talks to Bryan about pressures in the home and why they matter for HVAC solutions at IBS 2022. Technicians focus a lot on ductwork and airflow, but many of them don’t focus on how the building envelope impacts HVAC performance. A lot of the HVAC equipment’s performance is affected by the push and pull of air caused by leaky areas in the building envelope. If you have a room with too much air and another room with too little, you will have unbalanced pressures. Unb...
Birmingham training class
April 21, 2022 11:00 - 2 hours - 224 MBThis podcast is a class that Bryan taught for BTrained in Birmingham, AL. He covers troubleshooting, installation, and commissioning best practices with a focus on the fundamentals. To be a good troubleshooter, you must be able to find the problem, identify the source of the problem, fix the problem, and optimize performance based on your data, the customer’s comments, and your observations. The Five Pillars of diagnosis aren’t comprehensive diagnostic or charging criteria, but they can he...
Ross Trethewey IBS 2022 - Short #141
April 19, 2022 11:00 - 15 minutes - 21.3 MBBryan has a bit of an industry nerd out with Ross Trethewey from “This Old House” and TE2 Engineering at IBS 2022 (the International Builders’ Show). Ross’s education and career have focused on mechanical engineering, especially with sustainable solutions. In building science, the key mindset is to think of the building as a system. Using that school of thought, Ross has developed building science and HVAC solutions that also consider indoor air quality and ventilation, such as hybrid VRF ...
Replacing a Compressor - Step by Step
April 14, 2022 11:00 - 39 minutes - 54.7 MBIn this podcast, Bryan goes through the entire process of replacing a compressor step-by-step. This process is what the Kalos team uses to replace a failed compressor and make sure it doesn’t fail again. Before replacing a compressor, you must figure out how the compressor failed; grounded conditions often lead to acid, so it’s a good idea to test for acid and see if you need to address a burnout. In any case, make sure you have the correct tools for the job (including a compatible replace...
Refrigerant Top off, Drop in and Retrofit - Short #140
April 12, 2022 11:00 - 8 minutes - 11.9 MBIn this short podcast, Bryan explains what it means to top off, drop in, and retrofit refrigerants. He describes the differences between those three things to dispel some of the confusion they may cause. Topping off a system means that you add refrigerant to a low existing charge to get it back up to a normal level. In some cases, people top off systems with dissimilar refrigerants (e.g., topping off R-22 systems with cheaper R-407C). Topping off a system with a dissimilar refrigerant is u...
The Value of Networking for Techs w/ Trevor
April 07, 2022 11:00 - 29 minutes - 41.2 MBTrevor Matthews, the founder of Refrigeration Mentor, is back on the podcast. This time, he and Bryan talk about the value of networking for HVAC techs as the conference season comes to a close. Many trade events are networking opportunities that allow you to build relationships with other tradespeople, educators, mentors, and even other companies. You can also learn many trade and business tools that help you as a technician. Many technical and business conversations occur at trade events...
How to EFFECTIVELY implement educational growth w/ David Richardson
March 24, 2022 12:00 - 34 minutes - 48 MBDavid Richardson of NCI joins the HVAC School podcast to talk about how we can implement educational growth effectively throughout the trade. NCI started as a premium training resource about airflow testing, but the organization eventually started teaching about combustion testing as well. When we improve the industry, we need to be able to have concrete ways to see what we’ve been doing wrong or what we can do better. Test instruments allow us to see the whats and whys behind what we do. ...
Comfort Investigation on TV w/ Corbett Lunsford
March 20, 2022 11:00 - 18 minutes - 25.2 MBCorbett Lunsford of Home Diagnosis joins Kaleb to record a podcast about comfort investigation on TV. The two of them discuss how comfort investigation works on TV shows, what Home Diagnosis hopes to accomplish, and some building performance tips. Home Diagnosis is mostly aimed at homeowners, but HVAC technicians would also benefit from the show, as it dives into science and testing. The show promotes consumer education and contractor accountability. Diagnostics and testing are absolute ...
Commercial HVAC Predictive Control w/ BrainBox AI
March 17, 2022 12:00 - 41 minutes - 56.8 MBBlake Standen and Omar Tabba of BrainBox AI join the HVAC School podcast to talk about commercial HVAC predictive control. This conversation focuses on applying artificial intelligence to existing building systems, including the HVAC, to predict performance under certain weather and occupancy conditions. If you have controls that can predict performance and adapt, then you can maximize energy savings. A commercial HVAC system may include air handlers, chillers, boilers, RTUs, and all sorts o...
Commercial HVAC Predictive Control w/ BrainBoxAi
March 17, 2022 12:00 - 41 minutes - 56.8 MBBlake Standen and Omar Tabba of BrainBox AI join the HVAC School podcast to talk about commercial HVAC predictive control. This conversation focuses on applying artificial intelligence to existing building systems, including the HVAC, to predict performance under certain weather and occupancy conditions. If you have controls that can predict performance and adapt, then you can maximize energy savings. A commercial HVAC system may include air handlers, chillers, boilers, RTUs, and all sorts...
3 Phase Energy Savings w/ Falkonair
March 16, 2022 11:00 - 26 minutes - 36.4 MBChris Micallef, the CEO of Falkonair, joins Nathan Orr at AHR to discuss energy savings for three-phase equipment. They also explore some of Falkonair’s controls for compressors, especially on DC inverter equipment. Falkonair has software that allows users to control all types and brands of three-phase compressors with compatible variable frequency drives (VFDs). The software recommends the compatible VFD based on the amperage readings. Falkonair aims to bring this software to the refriger...
Internal Apprenticeship w/ Brynn Cooksey
March 15, 2022 11:00 - 8 minutes - 11.9 MBBrynn Cooksey joined Eric Kaiser for a podcast about internal apprenticeship, its benefits, and how to make it work. Brynn is the general manager of Air Doctors Heating and Cooling LLC, a well-respected HVAC contracting company in Detroit, MI. Air Doctors Heating and Cooling LLC has its own in-house apprenticeship program based on Department of Labor guidelines. The apprenticeship program caters to new techs out of trade school and focuses on rigorous training. There is some administrative p...
Internal Apprenticship w/ Brynn Cooksey
March 15, 2022 11:00 - 8 minutes - 11.9 MBBrynn Cooksey joined Eric Kaiser for a podcast about internal apprenticeship, its benefits, and how to make it work. Brynn is the general manager of Air Doctors Heating and Cooling LLC, a well-respected HVAC contracting company in Detroit, MI. Air Doctors Heating and Cooling LLC has its own in-house apprenticeship program based on Department of Labor guidelines. The apprenticeship program caters to new techs out of trade school and focuses on rigorous training. There is some administrative...
New Educational Options w/ Faraday
March 13, 2022 11:00 - 25 minutes - 35.6 MBAlex and Nicole of Faraday join Kaleb Saleeby and Ty Branaman to talk about new educational formats and options in the HVAC industry. Alex is the founder of Faraday, and Nicole is the head of operations. Ty is a notable HVAC educator who supports Faraday and its mission. Faraday is a free educational program that prepares apprenticeships for fieldwork, allows them to get EPA 608 certification, and helps place them in jobs with paid training. Although the program is free, there is a rigorou...
HVAC Social Media, AHR & AMRAD Capacitors w/ HVAC_ASH
March 10, 2022 17:01 - 36 minutes - 50 MBAshley (aka hvac_ash) joins the podcast to talk about how HVAC fits into social media, AHR 2022, and AmRad capacitors. Ashley works with Global the Source on the sales and distribution side of the business. Becoming an HVAC influencer is smart, especially when there is a dedicated audience in the industry. When you gain traction online, that can branch into marketing, which helps get the word out even more. It’s also a great way to make connections organically once you have traction and le...
Net Zero HVAC w/ Bill Spohn, Eric Kaiser and Kaleb Saleeby
March 10, 2022 12:00 - 1 hour - 84.7 MBBill Spohn joins Eric Kaiser and Kaleb Saleeby at AHR 2022 to talk about his experiences designing and living in a home with NetZero HVAC. NetZero HVAC refers to system design with tight coordination with the house to make it as efficient as possible. Some of these systems are so tight and efficient that they approach passive house standards (0.6 ACH50). Bill lives in a modular home that also generates more energy than it consumes, and it doesn’t rely on natural gas. The greatest expens...
Data Logging w/ Collin Olson and Eric Kaiser
March 09, 2022 12:00 - 35 minutes - 49.2 MBCollin Olson, the staff physicist of The Energy Conservatory (TEC), joins Eric Kaiser at AHR 2022 to talk a bit about data logging. Data logging refers to the act of using sensors to record data over time and then analyzing that data. TEC dipped its toes into data logging with the APT and then TECLOG. Data logging allows us to take and store multiple readings as well as extrapolate data into graphs, making it easier to analyze performance. The TECLOG4 software is the most up-to-date versio...
Unique K-12 HVAC Incentives, Commercial Regulation Changes and More w/ Mark Tozzi from Carrier
March 08, 2022 12:00 - 23 minutes - 32.6 MBMark Tozzi from Carrier comes on the HVAC School podcast to talk about unique HVAC incentives in K-12 schools. When schools closed down during COVID-19 lockdowns, a new series of incentives came out for schools. Many of these incentives include access to technology, and improvements to HVACR equipment are covered under those programs. Schools can benefit from geography-tailored solutions, including air-cooled chillers in the Southeast and products meant to improve IAQ, including filtrati...
Changing HVAC Regulations w/ Chris Forth of Johnson Controls
March 06, 2022 12:00 - 14 minutes - 19.6 MBChris Forth, the VP of regulatory codes and environmental affairs at Johnson Controls, joins Bryan for a live podcast at AHR 2022. This time, they discuss changing HVAC regulations and what that will mean for contractors, technicians, and installers. Johnson Controls focuses on institutional chillers, controls with digital platforms, air handlers, filtration, and alarm systems. Lately, Chris has gotten the industry ready to convert existing products and systems to high-efficiency equipment...
Control Over IAQ w/ Kevin Hart from Haven
March 03, 2022 12:00 - 25 minutes - 35.8 MBKevin Hart, the CEO of HAVEN, joins Kaleb Saleeby live from AHR 2022 to discuss how we can control IAQ with central air monitors and controllers. HAVEN, formerly TZOA, is an IAQ company that focuses on protecting building occupants’ health by controlling air quality. HAVEN’s approach to managing IAQ starts with collecting data about the air. Without that data, we can’t come up with solutions tailored to individual buildings. We need sensors to gather that data, which would traditionally me...
A FASCINATING New Power Generation / Water Heating Solution w/ Enginuity
March 02, 2022 12:00 - 33 minutes - 46.1 MBJacques Beaudry-Losique, the CEO of Enginuity Power Systems, joins Nathan Orr live at AHR 2022. Enginuity manufactures energy-efficient engines that produce more power than traditional engines and recover waste heat to act as water heaters. Enginuity engines can run on propane and natural gas to help you run almost entirely off the grid and participate in electricity buyback programs. These units operate independently of the electrical grid and can act as generators during power outages and ...
Samsung Ductless LIVE From AHR - Short #139
March 01, 2022 12:00 - 20 minutes - 28.5 MBRick Nadeau, Director of Training and Technical Services at Samsung, talks with Kaleb Saleeby live from AHR. He explains some of the exciting ductless solutions that Samsung has to offer. Samsung’s WindFree mini-split systems work with VRF systems or as normal ductless units. The WindFree product line is best known for preventing drafts due to microholes. These systems come in one-way and four-way cassettes and work very well for sensitive environments like nursing homes and bedrooms. T...
How to ACTUALLY Measure Airflow w/ Steve Rogers and Eric Kaiser
February 27, 2022 12:00 - 29 minutes - 40.5 MBSteve Rogers from The Energy Conservatory (TEC) joins Eric Kaiser to talk about airflow measurement at AHR 2022. Steve is an expert in fluid dynamics and flow measurement, and he is a trainer in addition to being the president and CEO of TEC. Airflow is one of the most critical elements of an HVAC system; it allows us to move the correct amount of BTUs to condition the air properly. We have various ways of measuring system airflow and airflow to a space. We can use the TrueFlow grid for th...
Commercial Rack Refrigeration Component Identification
February 24, 2022 17:13 - 52 minutes - 72.4 MBBrett Wetzel and Kevin Compass from the Advanced Refrigeration Podcast join us to discuss commercial rack refrigeration and identify components. In supermarket racks, we typically have anywhere from 2-5 compressors on a single rack (with multiple evaporators, metering devices, and sometimes even condensers). These compressors may come in several varieties (including screw and scroll) and be digital or have VFDs. They also have common suction and discharge headers. The compressors all sh...
Universal Boards and Controls w/ Eric K. and Jim F. LIVE from AHR
February 23, 2022 12:00 - 29 minutes - 40.3 MBJim Fultz from Emerson joins Eric Kaiser at AHR to share his knowledge of universal boards and controls. Jim’s work focuses on electronic controls within the White-Rodgers brand. Common White-Rodgers universal controls include the SureSwitch and universal defrost controls. The SureSwitch also has sealed contacts, which prevents insects and debris from shorting out the contacts. This past year, White-Rodgers debuted the All-Spark, which doesn’t need electricity to be powered up and can b...
Malco - New Tools and Education Focus with Rich Benninghoff - Short #138
February 22, 2022 12:00 - 15 minutes - 21.7 MBIn this short podcast from AHR 2022, Leilani Orr and Eric Kaiser talk with the president and CEO of Malco Tools, Rich Benninghoff. Rich discusses some of the exciting new tools that Malco is bringing to the market and some plans for the future, especially when it comes to education. Malco has developed the Eagle-Grip, which is a set of locking-handle pliers made in the USA with American steel. The tool is currently in a soft launch; it is currently receiving a lot of interest, so Malco has...
HFC Phasedown W/ Jason O and Nathan O LIVE from AHR
February 20, 2022 12:00 - 28 minutes - 39.1 MBJason Obrzut joins Nathan Orr with the HVAC School podcast live from AHR. In this episode, they discuss A2L refrigerants and upcoming regulations. They explain what a “flammable” refrigerant really is and why the industry may be making a bigger deal of the new regulations than is really necessary. Whenever regulations are passed, we need to understand that there is a notable transition period. This period will mostly be about training, and the only people who should be working on the new e...
HVAC Training Past, Present & Future w/ David Holt
February 17, 2022 12:00 - 50 minutes - 68.9 MBDavid Holt with NCI returns to the podcast to discuss the evolution of HVAC training; we cover the past, present, and the possible future of training in the industry. In the past, we had a lot of hands-on training, whether it was one-on-one or in a traditional classroom setting. These learning practices remain beneficial today, especially since many uninformed practices are still prevalent in the industry today (charging to beer-can cold, condemning TXVs without a second thought, etc.). ...
Proper System Commissioning w/ Jim Bergmann from AHR Live
February 16, 2022 12:00 - 27 minutes - 37.6 MBJim Bergmann returns to the HVAC School podcast live from AHR 2022 to discuss a bit about proper system commissioning. He explains the commissioning mindset and some helpful procedures. Successful system commissioning starts with the mindset. A good commissioning organization broadens its vision; instead of focusing on the appliance, techs and installers focus on the system. Commissioning early on saves time later; you can focus on installs and maintenance instead of callbacks, and your orga...
3D Load & Energy Calcs w/ Duct Design
February 15, 2022 12:00 - 26 minutes - 37.3 MBRuss King joins us for a short podcast episode about using 3D load and energy calculations with duct design. Russ has developed the Kwik Model 3D software program with the help of his son, Connor. Kwik Model 3D uses a video game platform to build a house out of boxes instead of a sketch. The software has evolved and been integrated into EnergyGauge to do load and energy calculations based on a house’s geometry. Kwik Model makes it easy and fun to create that geometry profile for a home, wh...
A History in HVAC Chemical Chemistry w/ John & Mike Pastorello
February 13, 2022 12:00 - 39 minutes - 54.7 MBIn this live podcast from AHR Expo 2022, John and Mike Pastorello of Refrigeration Technologies give us a history lesson in HVAC chemical chemistry. They also explain what it takes to make a truly beneficial product for the industry. From the beginning, Refrigeration Technologies has focused on solving problems instead of jumping on product trends. Before Big Blu was introduced, technicians had to rely on less-than-reliable electronic leak detectors and poor-quality soap bubbles. So, John Pa...
Upgrades and Proposals That Lead to Clarity & Profit w/ Michael Housh
February 10, 2022 12:00 - 1 hour - 90.5 MBMichael Housh returns to the podcast to discuss upgrades and proposals that are worth considering. These upgrades and proposals can actually benefit the customer AND lead to clarity and profit without turning you into a white-shirt tech. When assessing a system for replacement, it’s a good idea to look at the airflow side by measuring static pressure AND using a flow grid; these practices set you apart from others and supply you with good data about system sizing. Filtration is another area ...
Free Tech Support w/ Clifton Beck
February 08, 2022 12:00 - 24 minutes - 34 MBIn this short podcast episode, Clifton Beck joins us to talk about Bluon’s free tech support and resources available to technicians and installers. Clifton has been very in touch with the HVAC technician community since he got his start in the trades, and he has taken that into tech support. He has noticed that the inefficiency in our industry tends to come from poorly learned practices, and working in tech support is a way for him to do his part to spread better practices while helping ot...
Blower Doors Don't Need to Be So Confusing w/ Genry Garcia
February 03, 2022 12:00 - 44 minutes - 61.2 MBGenry Garcia returns to the podcast to talk about blower doors and why ACH50 may needlessly complicate efforts to tighten a building envelope. A large element of indoor comfort comes down to controlling the load, especially the latent load. Even though we can control indoor humidity sources, we may also deal with infiltration, which contributes to a high latent load and decreases comfort. The blower door test comes in when we can no longer control the load and need to determine how much in...
Introduction to Psychrometrics w/ Eugene Silberstein
February 01, 2022 12:00 - 46 minutes - 64.6 MBEugene Silberstein, a co-author of Refrigeration and Air Conditioning Technology (RACT manual), joins the podcast to give us an introduction to psychrometrics. Psychrometrics focuses on the properties of air and its contents, especially as they relate to human comfort. To understand psychrometrics, we need to be able to quantify air: its weight, humidity, pressure, etc. We can do a better job as technicians if we figure out the air’s content and see how it relates to the CFM and overall unit...
Prepare For Refrigerant Changes w/ Brandon Marshall
January 27, 2022 12:00 - 24 minutes - 33.6 MBBrandon Marshall, Chemours’s North American marketing manager for thermal and specialized solutions, joins the podcast to discuss refrigerant changes that are coming and how we can prepare for those. Brandon started in the industry by going to a technical school when he was 14 and has been hard at work ever since, studying light commercial design and going to college in between. Local and global regulations have changed a lot over the years and continue to change as we continue maximizing ...
The History and Future of Refrigerants w/ Chuck Allgood
January 25, 2022 12:00 - 44 minutes - 61.8 MBChuck Allgood with Chemours joins the podcast to cover the history of refrigerants and discuss what the future might hold. In the late 1800s, before Freon, the only refrigerants that were used were industrial chemicals like ammonia, CO2, and sulfur dioxide. DuPont stepped in to provide a better refrigerant for industrial refrigeration (which then spurred the rise of domestic refrigeration), so they created a non-toxic, non-flammable chemical called Freon-12 (CFC R-12) in 1928. However, i...
Overcoming Conflict at Work w/ Andy Holt
January 20, 2022 12:00 - 38 minutes - 52.9 MBAndy Holt joins the podcast to discuss the ever-relevant topic of overcoming conflict at work. Some people end up in conflicts often, so Andy recommends paying attention to how others react to the conflict you have perceived; if you are much more stressed than everyone else, then you need to look internally, not externally. The first step to overcoming conflict is to slow down and think about your reactions to perceived conflicts. Partaking in bickering and gossip with coworkers creates ...
Commercial HVAC Estimating
December 30, 2021 12:00 - 27 minutes - 37.7 MBMatthew and Nick Wavra join the podcast to discuss everything that goes into job estimation in commercial HVAC. Nick has a lot of fieldwork and project management experience, and Matthew has marketing, software, and sales experience, which helps bring in and retain clients. Commercial estimation begins when a mechanical contractor asks for a bid on a job. The estimators go through the spec books, bidding documents, and any addendums to come up with takeoffs and a price. The estimator seeks...
Furnace Sequence of Operation - Short 137
December 28, 2021 12:00 - 7 minutes - 9.88 MBIn this short podcast episode, Bryan goes over the basic gas furnace sequence of operations. There are a few variations, but the sequence of operations tends to stay consistent across most furnace types. First, a W call from the thermostat calls for heat. The circuit board will then assess the safeties to see if it can bring on the heat without causing flame rollout or other dangerous conditions. If the safety switches are all closed, then the furnace can bring on the heat. However, in som...
Starting an Internal Training Program w/ Trevor
December 23, 2021 12:00 - 35 minutes - 48.9 MBTrevor Matthews, the founder of Refrigeration Mentor, returns to the podcast to talk about starting up an internal training program for an HVAC/R company. In some cases, the best lead technicians don’t want to be head trainers if the responsibility is forced upon them. However, when there is a solid training plan in place, those senior technicians might actually find the task enjoyable. The first step to starting a training program is to ask the apprentices and technicians where their sk...