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In this informative episode, we're joined by Jamie Kitchen from Danfoss to demystify one of the most misunderstood components in HVAC systems: the expansion valve. With decades of experience in the field, Jamie and Clifton break down the fundamentals, common misconceptions and evolution of this critical component. Learn more at danfoss.com.
In this informative episode, we're joined by Jamie Kitchen from Danfoss to demystify one of the most misunderstood components in HVAC systems: the expansion valve. With decades of experience in the field, Jamie and Clifton break down the fundamentals, common misconceptions and evolution of this critical component. We explore: • How expansion valves work and why they're often misdiagnosed • The role of sensing bulbs and the “secret sauce” behind their operation • Key differences between refrigeration and air conditioning systems • The importance of universal aftermarket solutions like the TR6 valve • How proper training and education can reduce callbacks and improve efficiencyJamie shares practical insights and actionable advice for contractors, technicians and industry professionals looking to improve performance, reduce errors and adapt to refrigerant transitions. Whether you're troubleshooting in the field or stocking your truck, this episode is packed with tips to help you succeed.Learn more at danfoss.com.
Join hosts Brett Wetzel and Kevin Compass in this comically chaotic episode of the Advanced Refrigeration Podcast! While Kevin struggles with a malfunctioning VPN and frustrating remote support issues, Brett tackles a misbehaving VSD compressor and explains his VPN woes. From making fun of Matthew from Michigan to struggling with case controllers, this episode is packed with technical insights and humor. Plus, hear about Brett's upcoming adventures in Newfoundland and plans to visit the Dildo Brewery! Whether you're a seasoned HVAC pro or just in need of a good laugh, this episode has it all!
Join hosts Brett Wetzel and Kevin Compass in this comically chaotic episode of the Advanced Refrigeration Podcast! While Kevin struggles with a malfunctioning VPN and frustrating remote support issues, Brett tackles a misbehaving VSD compressor and explains his VPN woes. From making fun of Matthew from Michigan to struggling with case controllers, this episode is packed with technical insights and humor. Plus, hear about Brett's upcoming adventures in Newfoundland and plans to visit the Dildo Brewery! Whether you're a seasoned HVAC pro or just in need of a good laugh, this episode has it all!
Japan's Top Business Interviews Podcast By Dale Carnegie Training Tokyo, Japan
"Get your hands dirty: credibility in Japan is built in the field, not the boardroom". "Bridges beat barriers: headquarters alignment turns local problems into solvable projects". "Make people proud: structured "poster sessions" spark ownership, ideas and nemawashi". "Decisions at the edge: push market choices to those closest to customers, then coach". "Trust travels: clear logic, calm feedback, and consistency convert caution into commitment". Belgian-born power-electronics engineer turned global executive, Erwin Yseijin leads Semikron Danfoss in Japan with more than three decades across Japan, Germany, and Taiwan. Beginning as a hardware engineer in switch-mode power supplies and motor drives, he joined a Japanese semiconductor firm in Munich in 1989 and relocated to Japan in 1992, learning operations, production planning, quotations, and logistics from the inside. Subsequent leadership roles at Infineon included Japan and a five-year post-merger integration in Taiwan overseeing ~50 R&D engineers and close OEM relationships across PCs, routers, and wireless. After a gallium-nitride startup stint in Dresden, he joined Semikron, later Semikron Danfoss, leading APAC reorganisation, factory consolidation, and a direct-plus-distribution sales model, before becoming Japan President. Fluent in the technical, commercial, and cultural languages of the region, he specialises in aligning headquarters and local teams, and in building pragmatic, customer-led organisations in Japan. Erwin Yasvin exemplifies the hands-on leader who earns trust in Japan by showing up where problems live. His credo—"get your hands dirty"—is not metaphorical. When customers escalate issues, he goes with sales to uncover root causes and secure head-office commitments on the spot. That credibility shortens cycles in a market where 100% quality is table stakes and where the service "extra mile" extends even a decade beyond a nominal warranty. A European by training and temperament, he learned Japanese corporate practice from the inside in the early 1990s, when multilayered hierarchies still defined decision flow. Rather than railing against the pyramid, he mined its upside: leaders who rise through layers bring practical judgement and empathy for shop-floor realities. Yet he also streamlined speed by bridging headquarters and Japan—translating commercial logic, technical constraints, and customer detail into decisions the field can act on. He builds voice and pride through "poster sessions": monthly forums where team members present customers, markets, wins, and bottlenecks to peers. That design triggers nemawashi—quiet pre-alignment—and fosters cross-functional curiosity. By picking one or two ideas from each session and ensuring execution, he turns speaking up into visible impact. Decision rights sit with those closest to the market. Each salesperson owns one or two verticals—motor drives, wind, solar, energy storage, UPS—with accountability for target customers, competitive intel, product needs, and pricing. Headquarters supports with budgets for samples and after-warranty analysis, signalling trust with money. Where ambiguity or urgency is high—such as the 2022 exchange-rate shock—he decomposes the "working package" into digestible actions, avoiding paralysis. Mistakes are coached privately and framed as leadership accountability: if an error occurred, expectations weren't clear enough. Monthly one-on-ones, written agendas, and evidence-led conversations establish a durable logic chain that travels across language boundaries. Culture-wise, he neither copies a Japanese firm nor imposes a foreign pace. Instead, he articulates values—efficient workdays, transparent processes, skill development—while adapting compensation to local norms through a hybrid bonus model that blends guaranteed and performance-tied elements. Asked how outsiders should lead in Japan, Yasvin stresses credibility, example, and constancy: be present in the hard moments, don't over-promise, and speak in clear, digestible steps. In a country where consensus and detail orientation are prized, leaders win by aligning logic with respect—turning caution into momentum without sacrificing quality. Q&A Summary What makes leadership in Japan unique? Japan blends layered hierarchies with high expectations for managers to understand field-level problems. Leaders gain status less by slogan and more by track record. Consensus is built through nemawashi and formalised via ringi-sho, with detail-rich documentation that honours uncertainty avoidance while preserving quality. The upside of layers is decision empathy; the downside can be speed—unless leaders bridge across functions and headquarters. Why do global executives struggle? Many push headquarters logic without translating it into local realities: customer expectations of zero defects; service beyond written warranty; and process fidelity (e.g., traceability standards) that must integrate into Japanese customers' own systems. Leaders also misread how "pride" shows up—quietly, not publicly—and miss mechanisms (like poster sessions) that let people contribute without confrontation. Is Japan truly risk-averse? Not exactly; it's uncertainty-averse. When leaders clarify the "box" and broaden it gradually, teams will step forward. Decomposing problems (e.g., FX pass-through frameworks) turns ambiguity into executable steps. Decision intelligence—structured data, clear thresholds, defined triggers—reduces uncertainty and enables action without violating quality norms. What leadership style actually works? Lead by example; be visibly present at customer flashpoints. Push decisions to the edge (market owners), back them with budgets, and coach in private. Use structured forums to surface ideas, then implement a few to prove that speaking up matters. Keep corporate values intact (efficient workdays, skill building) while tuning incentives to local practice. How can technology help? Operational dashboards that tie customer issues to root-cause analytics, plus digital twins of power-module reliability and logistics flows, elevate conversations from anecdote to evidence. Traceability systems aligned to global standards reduce manual re-entry and delays, while decision thresholds (e.g., FX bands) automate price updates and ensure fair, consistent application. Does language proficiency matter? Helpful, not decisive. Clear logic, written agendas, data, and diagrams travel farther than perfect grammar. Leaders who frame problems visually, confirm next actions, and close the loop consistently can overcome linguistic gaps, while continuing to study Japanese accelerates trust and nuance. What's the ultimate leadership lesson? Credibility compounds. Show up in the hard moments, keep promises small and solid, convert ideas into implementation, and protect quality while increasing speed through better alignment. Over time, trust becomes a structural advantage with customers and within the team. About the Author Dr. Greg Story, Ph.D. in Japanese Decision-Making, is President of Dale Carnegie Tokyo Training and Adjunct Professor at Griffith University. He is a two-time winner of the Dale Carnegie "One Carnegie Award" (2018, 2021) and recipient of the Griffith University Business School Outstanding Alumnus Award (2012). As a Dale Carnegie Master Trainer, Greg is certified to deliver globally across all leadership, communication, sales, and presentation programs, including Leadership Training for Results. He has written several books, including three best-sellers — Japan Business Mastery, Japan Sales Mastery, and Japan Presentations Mastery — along with Japan Leadership Mastery and How to Stop Wasting Money on Training. His works have also been translated into Japanese, including Za Eigyō (ザ営業), Purezen no Tatsujin (プレゼンの達人), Torēningu de Okane o Muda ni Suru no wa Yamemashō (トレーニングでお金を無駄にするのはやめましょう), and Gendaiban "Hito o Ugokasu" Rīdā (現代版「人を動かす」リーダー). In addition to his books, Greg publishes daily blogs on LinkedIn, Facebook, and Twitter, offering practical insights on leadership, communication, and Japanese business culture. He is also the host of six weekly podcasts, including The Leadership Japan Series, The Sales Japan Series, The Presentations Japan Series, Japan Business Mastery, and Japan's Top Business Interviews. On YouTube, he produces three weekly shows — The Cutting Edge Japan Business Show, Japan Business Mastery, and Japan's Top Business Interviews — which have become leading resources for executives seeking strategies for success in Japan.
Nvidia knackt die Marke von 5 Billionen Dollar / Spritpreise steigen deutlich Moderation: Birgit Harprath
Join the hilariously chaotic hosts of the Advanced Refrigeration Podcast, Brett Wetzel and Kevin Compass, as they navigate through a sea of technical issues and Bluetooth nightmares while diving into the functionalities of Danfoss case controllers. From misadventures in Colorado to the quirks of Thanksgiving blackout dates, this episode offers a candid mix of banter and genuine expertise in HVAC troubleshooting. Explore everything from programming case controllers via Bluetooth to hilarious rants about store configurations gone awry. Packed with both laughter and valuable refrigeration insights, this episode is a must-listen for anyone in the HVAC field!
Join the hilariously chaotic hosts of the Advanced Refrigeration Podcast, Brett Wetzel and Kevin Compass, as they navigate through a sea of technical issues and Bluetooth nightmares while diving into the functionalities of Danfoss case controllers. From misadventures in Colorado to the quirks of Thanksgiving blackout dates, this episode offers a candid mix of banter and genuine expertise in HVAC troubleshooting. Explore everything from programming case controllers via Bluetooth to hilarious rants about store configurations gone awry. Packed with both laughter and valuable refrigeration insights, this episode is a must-listen for anyone in the HVAC field!
On today's show, our guest is Aaron Jagoda, a Systems Engineer in Danfoss' Innovation and Development Solutions Team. This unit specializes in hydraulic system innovation, electrification, and digital control strategies for off-highway equipment. Expanding on his talk at the 2025 iVT Expo, Aaron provides a deep-dive into this system, it's functions, and some efficiency results based on testing a mini-excavator platform. Subscribe to the Fluid Power Forum today to never miss an episode. The podcast is available on all of your favorite podcast platforms, including Apple Podcasts, Spotify, and iHeart Radio. Connect with our host, Eric Lanke, at elanke@nfpa.com. Connect with our guest, Aaron Jagoda, at aaron.jagoda@danfoss.com. Find and share more interesting fluid power technologies and unique applications using #onlyfluidpowercan, and follow podcast and other fluid power industry-related updates at @TheNFPA. #FluidPowerForum #flowcontrol #valves
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses In this second part of our Basics of CO2 Controls training series, we're diving into programming RDM controllers and staging compressors. This episode focuses on understanding inputs and outputs, programming controllers and mastering the fundamentals behind various manufacturers' controls, including Danfoss, Microthermal and more. Kevin shares key information on setting pressure targets, understanding response times, working with receiver interlocks, and more, all to help refrigeration technicians handle any CO2 refrigeration system more efficiently. In this episode, we cover: -Programming controllers -Understanding compressor staging and alarms -Mapping inputs and outputs -Setting compressor parameters -Safety in CO2 refrigeration systems -Dry ice formation -Managing discharge pressure and alarms -High ambient temperature strategies -Optimizing gas cooler and receiver settings -Noise control Helpful Links & Resources: Episode 340. Basics of CO2 Controls with Kevin Mullis (Part 1 of 4) Episode 170. Troubleshooting RDM CO2 Controllers w/Cody Hamm and Chris Prom Resource Data Management RDM Episode 64. CO2 Controls with RDM Resource Data Management
In this series, we ask Danish companies why they continue to believe, despite growing pressures and uncertainties, that green business is good business. In this episode, we visit Danfoss. Usually, taking your own medicine has an unpleasant connotation, but for Danfoss, it's proof of concept: By applying their own technologies to cut emissions, they demonstrate how competitive decarbonisation works in practice — both for the bottom line and for the climate.Many of us know Danfoss for their thermostats, but actually, they only account for 0.04% of the business. What Danfoss essentially does is provide components for industry and buildings that increase machine productivity, reduce emissions, lower energy consumption, and enable electrification. And with over 100.000 unique product references, taking their own medicine is no small feat.
In this episode of HVAC TV, we sit down with Vic Marinich from Danfoss to talk all things heat exchangers—what they are, why they matter, and how they're evolving to meet the demands of modern HVAC systems.From chillers and data centers to river water cooling and refrigerant challenges, Vic breaks it all down in a way that's practical and easy to follow—even if it's been a while since you've calculated Reynolds numbers (don't worry, we don't go there).
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses In this episode, we're diving into electronic case controllers and valves. I share practical tips on accessing and interpreting manuals, setting up controllers, and troubleshooting common issues. We also cover control points, sensor calibration, and fine-tuning P&IDs. Investing time in learning these systems will enhance your skills and help you become a more proficient technician. In this episode, we discuss: -Electronic valves and controllers -Understanding case controllers -Specific controllers from Danfoss, Copeland, Microthermal and more -Finding and using manuals -Setting up controllers -Fine-tuning and troubleshooting -Investing in learning and development Helpful Links & Resources: Episode 257. CO2 Experts Live: Case Controllers with Kevin Mullis Episode 132. Copelands E3 Controller & CC200 Secrets: Unveiling the Top 5 CO2 Tips with Brent Cheshire Episode 282. Danfoss CO2 Controllers with Dave Yoder
Variable frequency drives, or VFDs, have long offered the opportunity to boost the energy efficiency of rotating equipment such as pumps and fans. But when VFDs are fully integrated into a plant's control system architecture, new levels of plantwide optimization are possible. Control's Keith Larson caught up with Chad White, leader of the North America sales organization for Danfoss, and Raj Nara Yanan, product manager for Honeywell Process Solutions, at the recent Honeywell Users Group meeting in San Antonio to discuss how Honeywell's partnership with Danfoss is unlocking new possibilities.
Ørsted skal nu på jagt efter 60 milliarder kroner. Nogle af dem kommer fra norske Equinor, der allerede ejer 10 procent af Ørsted. Men skal de eje mere ude i fremtiden? Skal danske Ørsted og norske Equinor måske fusionere? Vi tager temperaturen på det skæbneefterår, som Ørsted ser ind i. Vi skal også et smut til Kina med Danfoss. Der har været fuld smæk på åbningsceremoni af ny fabrik - vi tager med. (Og så tager vi også et lille sidespring til K-poppens verden). Til sidst ringer vi til den midlertidige direktør for Coloplast Lars Rasmussen. Vi skal høre om den nye strategi - men også hvornår vi kan forvente en ny direktør? Eller om Lars bare tager den selv? Vært: Ulrik Rosenkvist Schultz. Fast gæst: Sune Aagaard. Medvirkende: Jacob Pedersen, aktieanalysechef hos Sydbank og Lars Rasmussen, midlertidig direktør hos Coloplast.
Join hosts Brett Wetzel and Kevin Compass in this hilarious and educational episode of the Advanced Refrigeration Podcast. Brett recounts his miserable time working in the pouring rain while tackling control conversions on rooftop units in Atlanta. They navigate through setting up network connections for Danfoss controllers, battling tech woes, and hilarious hotel escapades involving 60 mph go-karts and failed golfing attempts. Perfect for HVAC professionals looking to laugh and learn about the intricacies of remote network troubleshooting and managing Danfoss systems.
Join hosts Brett Wetzel and Kevin Compass in this hilarious and educational episode of the Advanced Refrigeration Podcast. Brett recounts his miserable time working in the pouring rain while tackling control conversions on rooftop units in Atlanta. They navigate through setting up network connections for Danfoss controllers, battling tech woes, and hilarious hotel escapades involving 60 mph go-karts and failed golfing attempts. Perfect for HVAC professionals looking to laugh and learn about the intricacies of remote network troubleshooting and managing Danfoss systems.
In Part 2 of this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Jamie Kitchen, an HVAC expert, Training and Account Manager at Danfoss. They discuss the world of TT valves for heat pumps, particularly the Danfoss TR6. Jamie explains how balance port valves work, the importance of proper leak detection, and why correct charging practices are crucial for efficiency. He also talks about the challenges with condensing pressures and why new technology is improving system reliability. Jamie's insights help technicians avoid common mistakes and enhance system performance. Jamie Kitchen talks about how balanced port valves help HVAC systems maintain steady pressure, especially during temperature changes. He explains why proper leak detection and charging techniques are key to avoiding equipment damage. Gary and Jamie discuss the importance of keeping condensing pressures stable to ensure the system runs efficiently. Jamie also shares how modern technology, like a variable-speed fan, helps solve old issues with air conditioning systems. They both agree that precision in setup and maintenance is essential for long-term reliability. Jamie explains that TT valves, like the Danfoss TR6, help HVAC systems maintain stable pressure, especially when conditions change. He says proper leak detection and accurate charging are vital for preventing damage to compressors. Gary notes that modern systems have new tech, like variable-speed fans, to keep pressures steady. They both agree that many older methods are inefficient or can cause issues, but balancing port valves and precision in maintenance make a big difference in system performance and longevity. Expect to Learn: How TT valves like the Danfoss TR6 help stabilize HVAC systems. Why accurate leak detection and charging are critical for compressor health. How modern tech, like variable-speed fans, improves system reliability. What issues can arise from unstable condensing pressures? Why are balanced port valves key for steady operation and longer equipment life? Episode Highlights: [00:32] - Introduction to Part 02 with Jamie Kitchen [02:02] - Accurate Leak Detection & Compressor Protection [05:35] - Balance Port Valves & Condensing Pressure Stability [09:32] - How Balance Port Valves Stabilize Pressure in Variable Conditions [12:21] - Importance of Subcooling for Proper Charging [19:20] - Correct Placement and Positioning of the Sensing Bulb [21:02] - Breakdown of the TR6 Valve and Its Multi-Refrigerant Capabilities [23:17] - Closing Thoughts and Upcoming Van Video with Gary and Jamie This Episode is Kindly Sponsored by: Master: https://www.master.ca/ Cintas: https://www.cintas.com/ Supply House: https://www.supplyhouse.com/ Cool Air Products: https://www.coolairproducts.net/ property.com: https://mccreadie.property.com Follow the Guest Jamie Kitchen on: LinkedIn: https://www.linkedin.com/in/jamie-kitchen/ Danfoss: https://www.linkedin.com/company/danfoss/ Follow the Host: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/ Instagram: https://www.instagram.com/hvacknowitall1/
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Jamie Kitchen, an HVAC expert, Training and Account Manager at Danfoss, to talk all about TX valves for heat pumps. Jamie breaks down how these valves work in both heating and cooling modes and why they need to handle refrigerant flow in two directions. They discuss the parts of a TX valve, how pressure and temperature control the flow, and why Danfoss uses stainless steel in their design. Jamie also explains how proper installation helps prevent common issues and why external equalizers are important in many setups. It's a must-listen for anyone working with heat pumps. Jamie Kitchen from Danfoss joins Gary to talk about TX valves used in heat pumps. Jamie explains how these valves control refrigerant flow when switching between heating and cooling. He breaks down how the valve parts work together, using pressure and temperature to open and close. They also talk about why heat pumps need special valves, and how check valves help flow in both directions. Jamie explains why Danfoss uses stainless steel bulbs and tubes to stop leaks and handle rough conditions. It's a helpful talk for techs who want to understand heat pump valves better and install them correctly. Jamie explains how TX valves in heat pumps work like traffic lights for refrigerants, letting it flow the right way in heating or cooling. He shows how the valve uses pressure from a sensing bulb, a spring, and the coil to open or close. Jamie and Gary talk about why using an external equalizer helps the valve work better, and how check valves let refrigerants move both ways. Jamie also shares why Danfoss uses stainless steel parts; they last longer and don't break or leak. It's a smart guide for techs who want to understand these valves and avoid system issues. Expect to Learn: How TX valves work in both heating and cooling modes. Why heat pumps need valves that flow in both directions. How pressure and temperature control valve opening and closing. Why using an external equalizer helps the valve feed right. How stainless steel parts make the valve last longer and stay leak-free. Episode Highlights: [00:44] - Introduction to Jamie Kitchen - Part 01 [02:02] - What Makes Heat Pumps Different: Reversing Valve Basics [04:48] - How TXVs Work: Refrigerant Flow & Check Valve Role [06:25] - TXVs in Southern U.S. vs. Cold Climate Installations [10:36] - Why External Equalizers Help TXVs Feed Properly [16:05] - The Three Forces in a TXV: Bulb, Spring & Evaporator Pressure [19:23] - What's Inside the Bulb? Refrigerant Mix for Better Control [22:07] - Why Danfoss Uses Stainless Steel for Bulbs & Tubes This Episode is Kindly Sponsored by: Master: https://www.master.ca/ Cintas: https://www.cintas.com/ Supply House: https://www.supplyhouse.com/ Cool Air Products: https://www.coolairproducts.net/ property.com: https://mccreadie.property.com Follow the Guest Jamie Kitchen on: LinkedIn: https://www.linkedin.com/in/jamie-kitchen/ Danfoss: https://www.linkedin.com/company/danfoss/ Follow the Host: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/ Instagram: https://www.instagram.com/hvacknowitall1/
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses In this episode, we uncover the ins and outs of TX valves, including installation, sizing, settings, and troubleshooting. Joining us is Jamie Kitchen from Danfoss, who shares his vast knowledge on TX valves and the importance of proper setup to avoid common pitfalls. We dive into the principles of superheat, subcooling, and the differences between internal and external equalized TXVs. You'll also learn how to size valves correctly, the significance of maintaining airflow, and the best practices for adjusting superheat. In this conversation, we discuss: -Understanding TX valves and A2L refrigerants -Proper TX valve setup -A2L misconceptions -Refrigerant blends and global warming potential -Superheat and subcooling -TX valve operation principles -Increasing superheat for stability -Advanced troubleshooting techniques -Understanding airflow -Identifying low charge issues -Proper sizing and capacity of valves -Adjusting superheat correctly Helpful Links & Resources: Episode 16. TXV/TEV - A discussion about Thermostatic Expansion Valves Episode 202. Better Evacuations, A2L Myths and the Modern Mindset Around Refrigeration with Jesse Stewart of NAVAC Episode 293. Transitioning to A2L Refrigerants with Danilo Gualbino https://www.danfoss.com/en/
In this episode of "Taking the Temperature on HVAC," Jamie, John, and Jorg explore the different types of compressors offered by Danfoss, including reciprocating, scroll, screw, and Turbocor compressors. They discuss the operational differences between these compressors, such as the pulsation in reciprocating compressors versus the smooth operation of scroll compressors, and the factors influencing compressor selection, like efficiency, temperature range, and application needs. The hosts emphasize that choosing the right compressor depends on the specific system requirements, from low-temperature refrigeration to high-capacity heat pumps, providing valuable insights for HVAC professionals looking to optimize their systems.
In this episode of Did You Know? The ESCO HVAC Podcast, Clifton sits down with Dean Groff, Sales & Service Manager at Danfoss, to unpack the rapid rise of CO₂ as a leading refrigerant in the commercial refrigeration and HVACR space. From the regulatory push behind low-GWP technologies to the real-world performance of CO₂ in grocery and retail environments, Clifton and Dean explore what contractors, engineers, and educators need to know to stay ahead.They discuss the technical challenges, training gaps, and equipment innovations shaping the transition—along with practical tips for educators and technicians preparing for this next phase. Plus, hear how heat recovery, smart controls, and Danfoss's mobile CO₂ training units are helping bridge the knowledge gap.HVACR educators, technicians, and decision-makers—this episode dives into why CO₂ isn't just coming, it's already reshaping the industry.
Join Brett Wetzel and Kevin Compass on this episode of the Advanced Refrigeration Podcast, where they dive deep into the week's escapades, including installing and troubleshooting VFDs set high in the air, navigating the quirks of Danfoss icad and CCM valves, and battling unforeseen issues with CO2 stores. They also share tips for overcoming common HVACR challenges, like high-pressure alarms, low receiver levels, and dealing with troublesome solid-state relays. Whether you're facing the world's smallest terminal blocks or trying to keep your cool with heat-radiated sensors, this episode has something for every refrigeration pro.
Join Brett Wetzel and Kevin Compass on this episode of the Advanced Refrigeration Podcast, where they dive deep into the week's escapades, including installing and troubleshooting VFDs set high in the air, navigating the quirks of Danfoss icad and CCM valves, and battling unforeseen issues with CO2 stores. They also share tips for overcoming common HVACR challenges, like high-pressure alarms, low receiver levels, and dealing with troublesome solid-state relays. Whether you're facing the world's smallest terminal blocks or trying to keep your cool with heat-radiated sensors, this episode has something for every refrigeration pro.
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses This episode of CO2 Experts is the second of a 2-part lesson on advanced CO2 refrigeration troubleshooting with Chris Brown, Application Engineering Manager of Danfoss (You can listen to Part 1 here). In Part 2, we dive into the technical side of CO2 system start ups - tips and things to look for to really be proficient on getting that rack up and running or getting to a point where you can start adding gas. We also focus optimizing controller settings, tuning, and ensuring effective pressure management. In this episode, we discuss: -Controller tuning and receiver pressure -Understanding PI selection and tuning results -Troubleshooting rack superheat -Hot gas and liquid injection dynamics -Oil management -Booster systems and discharge pressure issues -Understanding medium temp suction pressures -Low temp discharge safety settings -Medium temp compressor issues and solutions -Suction Floating -Handling emergency shutdowns -Phase loss monitor checks -Troubleshooting charge loss -Leveraging manufacturer support Helpful Links & Resources: Danfoss Supermarket Support Danfoss YouTube Channel Chris Brown on LinkedIn Controller Talk Podcast S3 E13: “Inside Supermarket Refrigeration with Refrigeration Mentor, Trevor Matthews”
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses This episode of CO2 Experts is the first of a 2-part lesson on advanced CO2 refrigeration troubleshooting with Chris Brown, Application Engineering Manager of Danfoss. Here, we dive into the intricacies of CO2 control systems, including startup procedures, sensor calibration, pressure transducer checks, and the importance of proper insulation and wiring. Chris also shares techniques for fine-tuning and optimizing system components like gas cooler fans, high pressure valves, and parallel compressors. Have a listen, and watch for Part 2 on Monday, April 14. In this episode, we discuss: -Danfoss controllers -Startup and troubleshooting best practices -Control system breakdown -Sensor calibration and validation -Valve and transducer checks -Understanding temperature control in gas coolers -Fan speed variations and minimum speeds -Ejectors -Importance of accurate sensor readings -Optimizing system performance -Challenges in different seasons -Parallel compression and system tuning Helpful Links & Resources: Danfoss Coolselector®2 Chris Brown on LinkedIn Controller Talk Podcast S3 E13: “Inside Supermarket Refrigeration with Refrigeration Mentor, Trevor Matthews”
Ever wondered what grocery shopping looks like for a refrigeration expert? Spoiler alert: It's cooler than you think!
Ever wrestled with a Danfoss 880a while your brisket-induced meat sweats kicked in at a shady gas station BBQ joint?
Ever wrestled with a Danfoss 880a while your brisket-induced meat sweats kicked in at a shady gas station BBQ joint? What do you get when you mix panic attacks, brisket, and sensor configuration nightmares? Just another episode of the Advanced Refrigeration Podcast Brett & Kevin dive into: Panic Attack Chronicles (gas station BBQ may have been involved) Tech time in Hotlanta – working the front lines in ATL Addressing & configuring Danfoss 880a controllers like pros Building custom sensors (ever made your own liquid level sensor?) High-voltage boards, variable outputs, and the magic of conversion factors Cloning sensors and troubleshooting calc blocks like mad HVAC scientistsIt's the kind of episode that'll make you smarter and question your life choices at questionable BBQ joints. Stream it now on Spotify, Apple Podcasts, or wherever you pretend to do paperwork while learning about voltage types and inverter setups.#AdvancedRefrigerationPodcast #Episode412 #HVACTechLife #Danfoss880a #GasStationGourmet #MeatSweatsAndModbuses #RefrigerationNation #HVACFails #CustomSensorMadness
On today's show, our guests are Prabal Malviya and Chad Larish. Prabal is a senior engineer in the Autonomy group and Chad is a principal engineer in the Controls division within Danfoss Power Solutions. Danfoss designs engineered hydraulic, electric, and electronic systems and components, for use primarily in off-highway mobile equipment and attachments. We invited Prabal and Chad into our forum to learn more about the range of hydraulic, fluid conveyance, and electrification solutions, including the latest advancements in autonomous boom control, the key technologies driving autonomy in off-highway equipment, and how Danfoss is developing solutions to meet the evolving demands of the industry. Connect with Chad: chad.larish@danfoss.com Connect with Prabal: prabal.malviya@danfoss.com Connect with the host, Eric Lanke, at elanke@nfpa.com or on LinkedIn at the National Fluid Power Association. https://www.danfoss.com/en-us/products/dps/autonomy/#tab-software-engineering-services.
In this episode of Controller Talk, Dave and Chris dive into pack controller oil management, exploring key concepts like moving oil from the separator to the receiver. Learn about using one or two oil separators, relay pulses, level switch options, pressure-based control, and alarm setups. Plus, get insights on COM 10 and COM 20 compressor oil management devices. Tune in for expert tips on optimizing your system's performance and don't forget to subscribe so you never miss an episode!
Danfoss Pack Controllers, BBQ, And Flight Delays – Episode 410 ✈️
Danfoss Pack Controllers, BBQ, And Flight Delays – Episode 410 ✈️
In this episode of the Controller Talk Podcast, we tackle the thrilling adventure of upgrading from the ancient AK-SC 255 system controller to the futuristic AK-SM 800A System Manager. Will your nodes be compatible? Will your database files survive the transfer? Will you remember your password after setting it? We've got all the answers (or do we?)!Join hosts Chris and Dave as we navigate the setup wizard, wrestle with IP addresses, and decode the mysteries of Ethernet settings. If you're upgrading, planning to, or just enjoy hearing about other people's technical struggles, this episode is for you!Don't forget to subscribe so you never miss an episode—because let's be honest, you'll probably need this guide again!
In this episode of the HVAC Know It All Podcast, Host Gary McCreadie continues his conversation with Jamie Kitchen, an Industry Expert from Danfoss. In Part 2, they will discuss the role of check valves in Heat Pump TXVs in more detail, comparing North American and European TXV designs and discussing why refrigerant adoption differs across regions.Jamie also shares insights on how inverter-driven heat pumps impact metering devices, the differences between Thermostatic Expansion Valves (TXVs) and Electronic Expansion Valves (EEVs), and how technicians can optimize superheat for maximum efficiency. He emphasizes why proper system design and programming are key when pairing TXVs with inverter compressors, and how aftermarket TXVs offer flexibility for field applications.This episode is packed with technical knowledge, troubleshooting tips, and real-world applications, making it a must-listen for HVAC professionals looking to sharpen their skills and keep up with industry advancements.At Danfoss, Jamie Kitchen focuses on HVAC system optimization, helping technicians master TXVs, check valves, and inverter-driven heat pumps. He simplifies complex concepts, making it easier for professionals to diagnose and improve system performance. With expertise in refrigerant flow, superheat control, and expansion valve technology, Jamie provides valuable insights for those looking to stay ahead in the HVAC industry.Expect to Learn:1. How check valves in heat pump TXVs work and why they matter.2. The key differences between North American and European TXV designs.3. How inverter-driven heat pumps impact metering devices.4. The role of TXVs vs. electronic expansion valves (EEVs) in system efficiency.5. Why proper superheat control is crucial for optimizing HVAC performance.Episode Highlights: [00:33] – Introduction to Second Part of the Episode with Jamie Kitchen[02:09] – TXVs in Europe vs. North America: Design, Function & Industry Choices[03:45] – HVAC Innovation: Is North America Falling Behind Due to Energy Costs?[08:04] – TXVs vs. EEVs: How Inverter Heat Pumps & Metering Devices Affect Performance[12:22] – TXVs & Inverter Compressors: Compatibility, Control, and Adjustments.[16:22] – Final Thoughts: Optimizing Superheat for Efficiency & System Stability[18:52] – Closing Remarks & Future MeetupsThis Episode is Kindly Sponsored by:Master: https://www.master.ca/Cintas: https://www.cintas.com/Supply House: https://www.supplyhouse.comCool Air Products: https://www.coolairproducts.netLambert Insurance Services: https://www.lambert-ins.com Follow the Jamie Kitchen on: LinkedIn: https://www.linkedin.com/in/jamie-kitchen/Danfoss: https://www.linkedin.com/company/danfoss/Follow the Host:LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.comFacebook:https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/ Instagram: https://www.instagram.com/hvacknowitall1/
In Episode 10 of Season 3 (when did we even get here?!) Chris and Dave deep dive into tracking rack superheat—its importance and the steps to set it up. Make sure not to miss this episode if you want to know more about:✅ Using suction temp sensors & displaying superheat✅ Setting alarms for high/low superheat✅ Graphing & calculating superheat (pressure, temp, refrigerant)✅ Configuring a Misc Sensor Input & enabling history tracking Get expert insights to enhance your refrigeration controls bi-weekly!Subscribe & Tune in Now!
In this Episode of the HVAC Know It All Podcast, Host Gary McCreadie is Joined by Jamie Kitchen, an HVAC Expert from Danfoss, to Break Down How Heat Pump Thermostatic Expansion Valves (TXVs) Work and Why Check Valves are Essential.Jamie Kitchen explains the differences between heat pump Thermostatic Expansion Valves (TXVs) and straight cooling TXVs, why heat pump valves need built-in check valves, and how refrigerant flow reverses in heat pumps. They also discuss the evolution of expansion valves, the transition from pistons to TXVs and now to electronic expansion valves (EEVs), and why technicians often misdiagnose TXVs as the problem.This episode is packed with technical knowledge, troubleshooting tips, and expert insights that will help HVAC pros better understand metering devices, improve system performance, and reduce misdiagnoses.Jamie Kitchen shares insights on improving technician expertise and fostering a deeper understanding of heat pump TXVs and check valves. He highlights strategies such as mastering refrigerant flow dynamics, adopting universal TXV kits, and recognizing common misdiagnoses. This episode provides practical advice for HVAC professionals looking to enhance their troubleshooting skills, work more efficiently with modern TXVs, and stay ahead in the ever-evolving HVAC industry.Expect to Learn:1.The key differences between heat pump Thermal Expansion Valves (TXVs) and straight cooling TXVs2. Why built-in check valves are crucial for heat pump operation3. How refrigerant flow reversal works and why it impacts TXV performance4. The transition from pistons to TXVs to electronic expansion valves (EEVs)5. Common misconceptions and troubleshooting tips for TXV-related issuesEpisode Highlights: [00:00] – Introduction to Jamie Kitchen[01:31] – Understanding Heat Pump Thermostatic Expansion Valves (TXVs), Check Valves & SEER 13 Transition Lessons.[03:24] – TXVs vs. EEVs: Key Differences & the Importance of Precise Control[05:26] – TR6 Valve in HVAC: OEM vs. Aftermarket TXVs & the Simplicity of Universal TXV Kits.[10:07] – Secret Sauce in TXV Bulbs: How refrigerant mixtures impact performance[15:23] – The Role of Check Valves in Heat Pumps. Preventing reverse flow issues.[16:28] – How the Check Valve Works in TXVs. Simplifying installation & reducing leaks[18:08] – Refrigerant Flow & Check Valves. The path of least Resistance ExplainedThis Episode is Kindly Sponsored by:Master: https://www.master.ca/Cintas: https://www.cintas.com/Supply House: https://www.supplyhouse.com/Cool Air Products: https://www.coolairproducts.net/Lambert Insurance Services: https://www.lambert-ins.com/ Follow the Guest Jamie Kitchen on: LinkedIn: https://www.linkedin.com/in/jamie-kitchen/ Danfoss: https://www.linkedin.com/company/danfoss/Follow the Host:LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/Website: https://www.hvacknowitall.comFacebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/ Instagram: https://www.instagram.com/hvacknowitall1/
Join the Refrigeration Mentor Community here Learn more about Refrigeration Mentor Customized Technical Training Programs at https://refrigerationmentor.com/ In this conversation, we're taking a deep technical dive into Danfoss CO2 Controllers with Dave Yoder, Technical Support Engineer and Co-Host of the Controller Talk podcast (links below). Dave over three decades of experience in technical support for refrigeration systems and shares his extensive knowledge about the importance of asking the right questions of technical support and best practices for starting up and maintaining CO2 refrigeration systems. We also touch on key aspects of working with Danfoss controllers and the importance of hands-on training for technicians. In this episode, we discuss: -Common tech support questions from technicians -Effective communication in the field -Importance of proper startup procedures -Advice for contractors on startups -Biggest learning curve with Danfoss CO2 controllers -Managing CO2 systems in cold weather -Troubleshooting common issues -Sensor placement and insulation tips -Controller training and fine-tuning -The importance of using laptops in refrigeration Helpful Links & Resources: Follow Dave on LinkedIn Controller Talk Podcast on Spotify | Apple | YouTube
Host Dave Fiore speaks with Ricardo Schneider, executive advisor and recently retired president and CEO of Danfoss Turbocor. The Tallahassee-based company produces high efficiency, oil-free compressors for commercial air conditioning systems around the world. Ricardo's lifelong passion for improving the world through better refrigeration and air conditioning led him to a position with Danfoss in his home country of Brazil, where he grew up in a community of German immigrants. He excelled in every opportunity with the company and worked his way up to global vice president and a move from Mexico to Baltimore. While Danfoss has more than 40,000 employees and $12 billion in global revenue, the operation in Tallahassee was in trouble when Ricardo arrived. He quickly turned things around, doubling the company in size every five years, managing multiple expansions and delivering hundreds of millions in economic impact to our community. He remains inspired to create greater global and local impact through innovative and disruptive thinking and helping create tomorrow's leaders. And while he is in transition toward the next season of his life, Ricardo says, “purpose does not retire.” He is proud of what he has accomplished but says his best products for the world are his three children, made in partnership with his wife, Juliana.
In this episode of the HVAC School Podcast, Trevor Matthews and Bryan dive deep into the transformative potential of artificial intelligence (AI) in the refrigeration and HVAC industries. They explore how AI is not a new concept in their field, discussing how manufacturers like Copeland, Sporlan, and Danfoss have long incorporated AI-driven tools and repositories of information into their applications. The conversation goes beyond simple technological novelty, positioning AI as a powerful learning and troubleshooting assistant for technicians. The discussion highlights AI's role as a supportive tool rather than a job replacement. Trevor emphasizes that AI cannot physically perform trade-specific tasks like climbing ladders or brazing pipes, but it can provide invaluable guidance, explain complex procedures, and help technicians quickly access specialized knowledge. Particularly beneficial for less experienced technicians working late-night shifts or challenging service calls, AI can serve as an instant reference point, helping to jog memory and provide step-by-step troubleshooting guidance. Bryan and Trevor both stress the importance of approaching AI with curiosity and critical thinking. They advise against treating AI-generated information as absolute truth, instead recommending users ask follow-up questions, verify information, and use AI as a conversational learning tool. Trevor is actively developing a specialized AI platform for refrigeration training, working to train the system with industry-specific knowledge and real-world experience to create a more accurate and helpful resource for technicians. Key Topics Covered: AI's current applications in refrigeration and HVAC industries How AI can support technician learning and troubleshooting Strategies for effectively using AI tools The importance of maintaining technical knowledge while using AI Trevor's ongoing development of a specialized refrigeration AI training platform Practical examples of AI use in technical and non-technical scenarios Addressing concerns about AI potentially "dumbing down" the industry For those interested in participating in Trevor's AI beta test, email info@refrigerationmentor.com with the subject line "Looking to be included in the beta test for the refrigeration training AI." You can also visit the Refrigeration Mentor website at https://refrigerationmentor.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 episode, Controller Talk podcast hosts Chris and Dave decode the essential jargon of Danfoss case controllers! From sensors (Pe & S2 to S6) to diagnosing errors, weighted sensors, thermostat bands, defrost schedules, AKV relay (and more!)—this episode covers it all.Learn how to troubleshoot, optimize, and better understand your controllers. Don't miss this deep dive into the technical side of refrigeration!Subscribe & Tune in Now!
As January comes to an end, Chris and Dave dive into essential System Manager shortcuts to keep your refrigeration systems running smoothly for the year ahead. Learn essential best practices, including:How to back up the controller's database to prevent data lossThe importance of carefully considering configuration changes to avoid losing critical points, with real-world examplesExpert advice on managing AK 255/355 batteries, covering replacement schedules, backup procedures, and proper handling techniquesTune in to learn how to prevent common pitfalls and ensure your system operates at peak efficiency!*************The Controller Talk Podcast, presented by Danfoss North America, is hosted by Food Retail Tech Support experts Dave Yoder and Chris Brown, highlighting best practices for utilizing Danfoss controls in the supermarket and warehouse industries that you won't find in any manual.Drop us an email with suggestions for topics to cover, questions to answer, or comments to discuss on future episodes!ControllerTalkNorthAmerica@Danfoss.com.For more information and additional episodes of the Controller Talk podcast, visit https://controllertalk.captivate.fm/ Subscribe on Apple Podcasts (https://podcasts.apple.com/us/podcast/controller-talk/id1617965227), Spotify (https://controllertalk.captivate.fm/spotify) and Google Podcasts (https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5jYXB0aXZhdGUuZm0vY29udHJvbGxlcnRhbGs?ep=14).Audio & video engineer + copy wiz: Maria Sburlan.
Happy New Year, and welcome to the first episode of Controller Talk in 2025!
Episode 349: Danfoss EKE 1A - The Dangers of Schrader's & Happy Turkey Day! Happy Thanksgiving from the Advanced Refrigeration Podcast team! This week, Brett and Kevin are bringing you a feast of technical knowledge and seasonal cheer. In this episode, we dig into the Danfoss EKE 1A, the go-to controller for precision superheat control. Plus, we're talking about the sneaky dangers of Schrader valves—you know, those little components that can cause BIG headaches if mishandled. What's in this episode? Tips for avoiding Schrader valve disasters. A deep dive into the functionality of the Danfoss EKE 1A. Thanksgiving stories, laughs, and maybe a little turkey trivia. Don't miss this one—it's a perfect listen for the drive between service calls or while prepping your Thanksgiving feast. Like, comment, and subscribe to stay updated on all things refrigeration and HVAC! #HVACTech #DanfossControllers #Refrigeration #SchraderValves #ThanksgivingSpecial #AdvancedRefrigerationPodcast
Episode 349: Danfoss EKE 1A - The Dangers of Schrader's & Happy Turkey Day! Happy Thanksgiving from the Advanced Refrigeration Podcast team! This week, Brett and Kevin are bringing you a feast of technical knowledge and seasonal cheer. In this episode, we dig into the Danfoss EKE 1A, the go-to controller for precision superheat control. Plus, we're talking about the sneaky dangers of Schrader valves—you know, those little components that can cause BIG headaches if mishandled. What's in this episode? Tips for avoiding Schrader valve disasters. A deep dive into the functionality of the Danfoss EKE 1A. Thanksgiving stories, laughs, and maybe a little turkey trivia. Don't miss this one—it's a perfect listen for the drive between service calls or while prepping your Thanksgiving feast. Like, comment, and subscribe to stay updated on all things refrigeration and HVAC! #HVACTech #DanfossControllers #Refrigeration #SchraderValves #ThanksgivingSpecial #AdvancedRefrigerationPodcast
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