Chilling with Jens - Danfoss Cooling

Welcome to "Taking the Temperature on HVACR," hosted by Jamie Kitchen. In this insightful episode, Jamie is joined by regular guests, Jorg Saar and John Broughton, as they delve into the intricate relationship between temperature and pressure within refrigeration systems. The discussion covers the fundamentals of the refrigeration cycle, emphasizing how temperature differences drive heat transfer, and the role of components like evaporators and compressors. Explore the fascinating dynamics of vapor compression and learn how thermodynamics governs the operation of HVAC systems. Whether you're an industry professional or simply curious about how your fridge works, this episode offers valuable insights into the science behind keeping things cool.

While the space temperature in a refrigerated space may be used to control the refrigeration system, there is a lot more going on that we must also take control of. The thermostat initiates a pump down cycle to control/limit refrigerant migration to protect the compressor and enable defrost to occur more rapidly. Control over the temperature, humidity, velocity and direction of air leaving the unit cooler must be maintained to ensure that product is not dried out or frozen even when stored in temperatures above freezing. How product is placed within the cooler or freezer must be controlled so that sufficient airflow through the space and around the product occurs for quick and efficient heat removal.

In this episode of Taking the Temperature on HVACR, host Jamie Kitchen welcomes special guest Maiken Hansen to explore the world of hydronic balancing. They discuss how unbalanced heating systems in multi-family buildings can lead to cold tenants, noisy radiators, and high energy bills—and how dynamic balancing solutions can improve comfort, reduce complaints, and cut energy costs by up to 25%. Whether you're a facility manager, building owner, or just curious about smarter heating solutions, this episode dives into the challenges and benefits of efficient hydronic balancing.

Join Jamie and John in this episode of Taking the Temperature on HVAC-R as they tackle noise and vibration in commercial refrigeration and air conditioning systems. Discover the causes, impacts, and practical solutions to enhance acoustic performance and system efficiency. Perfect for cooling installers looking to optimize their installations and meet customer expectations!

In this episode of Taking the Temperature on HVAC-R, Jamie, John, and Jörg take you on a deep dive into the world of pressure controls in HVAC systems. Uncover the key differences between safety and control functions, explore practical tips for optimizing system efficiency, and gain insights into real-world applications in refrigeration and beyond.

Join host Jamie Kitchen and experts Jörg and Stefan as they dive into innovative alternatives to the conventional vapor compression cycle, examining their principles, advantages, disadvantages, and market potential. From thermoelectric and absorption cooling to emerging technologies like magnetic and thermoacoustic systems, discover the advancements that could reshape the HVAC industry.

Join Jamie Kitchen in part two of our Taking the Temperature on HVAC-R series as he explores more highlights from Chillventa 2024. This year's topic on the Danfoss booth at Chillventa was “Shift your perspective on the cold chain,” showcasing how solutions enhance efficiency and sustainability from farm to table. In this Episode Jamie dives into insightful conversations with Danfoss experts Jörg, Mathieu, and Julian.Discover key discussions about cold rooms, commercial heat pumps, chillers, and the rise of digital services in refrigeration.

Join Jamie Kitchen as he explores the latest trends from Chillventa, the top exhibition for refrigeration technology. This year's topic on the Danfoss booth at Chillventa was “Shift your perspective on the cold chain,” showcasing how solutions enhance efficiency and sustainability from farm to table. Jamie speaks with Danfoss expert Anatoly on the highlights of food processing and cold storage, and Gabriele de Bona on supermarket innovations. Special guest Trevor Matthews, the Refrigeration Mentor, also shares insights from his visit to the Danfoss booth."Stay tuned for the next part of Jamie Kitchen's Chillventa journey! Jamie continues his deep dive into the latest trends with Danfoss experts Jörg, Matthieu, and Julien. They discuss innovations in cold rooms, commercial heat pumps, chillers, and digital services in refrigeration technology. Coming soon!"Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Jamie Kitchen and his guests explore the essential role of the cold chain in preserving and transporting food from farm to table. They discuss the refrigeration technology behind it, its global impact on reducing food waste, and challenges in different regions. Using examples like milk, fruits, and vegetables, they explain the importance of precise temperature and humidity control for maintaining food quality.The episode also highlights the importance of technicians in keeping the cold chain running, ensuring fresh food distribution worldwide.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Join host Jamie Kitchen and guests John Broughton and Jörg Saar as they dive into the world of heat pumps. Explore the basics, technological advancements, different types, and practical applications of heat pumps in the US and EU. Learn about installation best practices and the latest market trends in this informative and engaging discussion. Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Join Jamie Kitchen, John Broughton and Jörg Saar as they explore practical steps to achieve energy savings in commercial refrigeration through decarbonization. This episode covers the benefits of using Thermostatic Expansion Valves (TXVs) over capillary tubes, the advantages of Electronic Expansion Valves (EEVs), optimal superheat adjustment, and essential maintenance tips for improving system efficiency. Learn how proper system design, installation, and upkeep can significantly reduce energy consumption and enhance the longevity of refrigeration equipment.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode, our new host Jamie Kitchen is joined by Gary McCreadie from HVAC Know It All, to look at how to avoid the dreaded call backs that occur under warranty. Call backs waste time and money and can take a serious toll on your reputation. So, how can you avoid them? The good news is the answers to that question are relatively easy to implement, don't require a lot of time and aren't exactly rocket science. The secret is in the planning. Tune in for a great discussion that will cover the what, why and how of avoiding call backs, and where we'll share some hard lessons we've learned along the way.

The crew is here to share their personal and professional opinions about residential heating, air quality, the future of HVAC, and what it meant to them from a young age.

We're recording this episode from Nordborg, Denmark, where Jens stopped by Danfoss' Application Development Center.He is there to explore the latest advanced technologies, like dual refrigeration systems, solar panels, and integration between electrical grid and district heating systems.What will you learn? This episode is all about energy recovery, efficiency, smarter cooling and heating, and staying ahead of the curve. Tune in now.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Energy efficiency is a game that must be won at every step of the journey, from choosing the right equipment to customers' daily use. Together with experts John and Jörg, Jens is finding where energy efficiency is gained and lost at every step, from equipment choice to refrigerant selection, condenser and evaporator considerations, user operation, and more. If you want customers to get the most from their systems, this episode is a must-listen. Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Next in our two-part commissioning series, is there a job for you to do when modern electronic controllers like Danfoss' Optima Plus range come with advanced settings? Yes. Find out why manual input is crucial for electric controllers, and how to get it right based on your specific application. We'll also take you through the system checks you should be doing during commissioning, from verifying operational temperatures and cycling, to checking oil levels in compressors. Press play, join the conversation, and be sure to follow us for the latest Chilling with Jens episodes.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode, we're looking at commissioning and the critical role of refrigerant charging. Jens and the team lay out strategies to master the process so that you and your system operate flawlessly.You'll hear about:The dangers of overcharging and how to avoid them.The importance of understanding your system's needs — because one size does not fit all in refrigerant charging.And a lot more.Press play, join the conversation, and pay attention to minute 16, where we reveal our simple tip for calculating the charge!Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

PFAS is a man-made chemical used since the 1940s, but it has been damaging our health and the planet from day one.Now that EU regulation points a finger at refrigerants, we have a few questions.Are we certain that PFAS is interlinked with refrigerants? Is it actively damaging our health and the planet? And what are regulators planning to do about it?We don't have all the answers, but it's time to ask some big questions.Tune in today.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Part of staying ahead is knowing what's coming, especially when it comes to regulation.That's why we re-recorded this special episode of #ChillingwithJens, to bring you updates from the EU's significant changes to F-Gas regulation. You'll learn about:Detailed changes to the refrigerant quota.Why applications using high GWP may sell out soon.Strategies for transitioning to a low GWP reality.Hit play, then join the conversation by sharing your reflections on Facebook, LinkedIn or Instagram. What surprised you about the new changes?Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

If every component matters, you need to choose right every time. In this episode, Jens and the crew share their step-by-step guide for selecting components and other tips.Key among them,Do not start with the pipe size when choosing a valve.And do know what you're cooling — even food packaging can make a difference.Press play and tag us on social media to share your favorite show moment. (Ours was... the part about carrots.)Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

CO2 is the way forward, but it's not always the answer. And there's a lot to know.By popular demand, the Chilling with Jens podcast team gathered their views on everything from the danger of retrofitting refrigerants to the misunderstood debate around CO2 greenhouse gases.Keep up and find out what you need to know in this changing landscape.Press play. Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Tune into the grand finale of "Le Tour de Cooling" as Jens and the crew explore the bright future and growing demands of cooling. Our hosts are asking. "Do you really need to be experts in every component? Or is system-level understanding enough?" What are the pitfalls and how can we all succeed in the long term? This is one episode you don't want to miss! Press play and let's chill!

In this new Chilling with Jens episode, we're exploring the world of refrigerants – its history, function, and why it matters for your practice and our planet.We debunk common misconceptions and spotlight important, often overlooked details, like selecting the right oil for your refrigerant.Stay informed and ahead of the game. Press play now for the latest expert insights! Listen now!Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this Chilling with Jens episode, the team is here with practical details for selecting, placing, and commissioning the condensing unit.If we've learned one thing, it's to challenge the common misplacement of these units. If you're hunting the unit down like you're on a safari, then there are bigger issues to consider.Press play and tune in for the latest expert advice now.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

What does an expansion valve really do? Our Chilling with Jens experts are here with your one-and-only guide to expansion valves, why they matter, and what you need to know.You'll find out that expansion valves do *not* control evaporating temperature, discover the drawbacks of insulation, and learn about the pros and cons of electronic vs. manual valves. And more.Always expert, always Chilling.Press play and listen as we talk expansion valves.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Join your host Jens Andersen and experts John Broughton and Jörg Saar on a deep dive into the liquid line. This week, we are busting a few myths, like whether height always matters and if you should consider insulating your liquid line.We'll also talk about the problem that is costing the environment and your wallet: too-long liquid lines. You'll learn that shorter is really better, but there are a few things to do now if you are stuck with a long line.Press play and let's get chilling!Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Jens, John, and Jörg are back to help HVAC professionals manage the condenser, along with its surrounding fans and controls. They cover how it all works and much more, from getting the initial installation right to knowing the signs of a faulty condenser.The key is proper, regular maintenance plus... “Airflow.” “Airflow.” “And more airflow.”Press play and listen in as the gang continues, "Le Tour de Cooling.” Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode of Chilling with Jens, the crew continues their “tour” of commercial application systems by looking at the compressor. We start off by learning that a presumably defect compressor may signal a bigger system issue. Fortunately, Jens has experts John Broughton and Jörg Saar on the line to share what to do and what not to do when replacing a compressor and diagnosing possible causes.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode of the Chilling with Jens podcast, Jens kicks off a mini-series “tour” of commercial application systems.Together with John Broughton and Jörg Saar, the experts get started by discussing evaporator issues in commercial refrigeration systems, from defrosting to evaporator flexibility (or lack thereof).Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

The audio for this episode was taken from a Livestream that was conducted on September 21 regarding heat pumps.Jamie Kitchen, Jörg Saar, Jens Andersen, and Morten Skovrup were on the panel to give a talk, and respond to audience questions regarding the trending subject of "Heat Pumps."Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode of the Chilling with Jens podcast, Jens, Jamie Kitchen, and Trevor Matthews of Refrigeration Mentor talk about how to stay relevant with developments in the refrigeration industry.They discuss the hard and soft skills that would greatly simplify the life of a cooling technician.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

Our colleagues were on-hand at Chillventa 2022 to witness one of the largest trade shows for the Cooling business first hand. In today's podcast episode, Jens talks with Jorg Saar, Jøran Burø, Morten Skovrup, and Mark Sever to get their views on this year's exhibits, the latest news in the Cooling and Heat Pump business, and their key takeaways from the many on-site presentations they attended during the three-day show. Get all the Chillventa updates and highlights that captured our experts' attention. And check out the solutions Danfoss presented at chillventa.danfoss.com.Mentioned in this episode:Download Ref Tools app for Free!The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app.Download Ref Tools App

In this episode of the Chilling with Jens podcast, Jens speaks to John Broughton about how one can use an Optyma™ Plus Controller for fault-finding. John speaks about the options when using the data gathered by the controller to identify possible malfunctions and defects in the system controlled by the Optyma™ Plus Controller. Learn more about Controller for condensing unit Optyma™ Plus https://assets.danfoss.com/documents/latest/158381/BC172686425380en-000901.pdf (here). Mentioned in this episode: Download Ref Tools app for Free! The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app. https://chillingwithjens.captivate.fm/download-ref-tools-app (Download Ref Tools App)

Your wish is our command. Yes, we didn't search anywhere else for this edition of the Chilling with Jens podcast topic than the preferences of our listeners.  This episode of the podcast will focus on "Electric Expansion Valves," which received the most votes on our poll. The topic of discussion between Jens, our host, and Xuefeng Bian, Danfoss Product Manager, will be the specifics of the various features of Electronic Expansion Valves.  Mentioned in this episode: Download Ref Tools app for Free! The essential, all-in-one mobile app for air conditioning and refrigeration technicians. You can subscribe and listen to Chilling with Jens and other local Danfoss Climate Solutions podcast via the Ref Tools app. https://chillingwithjens.captivate.fm/download-ref-tools-app (Download Ref Tools App)

In today's podcast episode, Jorg, Jens, Jamie, and John discuss their practical experiences in the refrigeration industry. An episode full of thrilling anecdotes, personal experiences, and life-long lessons learned to survive in the refrigeration industry. 

In this episode of the Chilling with Jens podcast, Jens speaks to Norbert Blatz about a game changing new Coolselector®2 programme feature designed to help businesses when calculating cooling systems for quotations. With the latest Coolselector®2 update, businesses can now access a new template that can be applied for each new system, making the quotation process faster and easier. Download Coolselector®2 here. https://coolselector.danfoss.com/

In this episode of the Chilling with Jens podcast, Jens is joined by John, Jorg, and Jamie to talk about humidity issues in HVAC and in storage facilities. They'll dive deeply into the importance of humidity and its crucial role in comfort control.

In today's podcast episode, our experts, Jens, John, Jorg, and Jamie, discuss typical problematic habits and installation errors. Errors committed during the installation and commissioning of cooling systems, whether they are cold rooms, chiller installations, or HVAC systems.  So, kick back, relax, and let our experts take you on a fun ride full of valuable tips, tricks, and hints on how to avoid too many after-service visits.

Jorg, Jens, Jamie, and John discuss oversized equipment and why it's not sized right in today's podcast.   With a combined 75 years of experience, the four experts delve into themes ranging from the marriage of compressors and evaporators to the humidity of meat storage rooms and even white chocolates.  

Thierry Legay, a Danfoss compressor expert, joins Jens on this edition of the Chilling with Jens podcast. They delve into the realm of compressors, their power usage, and the many situations/conditions in which they operate.

In this episode of the Chilling with Jens podcast, Jens is joined by Joseph Krisher for a conversation about Pressure Sensors. They are going to discuss modern pressure sensors and give us a glimpse into the smarter future with connected products, the internet of things, etc. 

The November episode of Chilling with Jens goes into details about temperature sensors for use mostly in refrigeration systems. Jens is joined by sensor expert Kevin Mee, and the two of them discuss how sensors work and how to get the best out of these small, but quite significant, pieces of passive electronic.

In this episode of the Chilling with Jens podcast about commissioning best practices, Jens interviews John Broughton, Global Applications Expert, to discuss the start-up procedure for commissioning a cold room, either by starting up a brand-new cold room or after a thorough refurbishing. 

In this episode, John Broughton is talking about air flow in general and inside freezer rooms in particular. There are quite a few things to consider and pay attention to when building and servicing cold rooms, but also the outdoor units need attention.

In this episode, Jens is joined by Jörg Saar for a conversation about Secondary Cooling. Taking an application-level perspective, they go over the principles of energy transport, how one refrigeration system can create the foundation for another, and what situations it's applied to.  You can also check our infographic about secondary cooling https://infogram.com/secondary-cooling-1hzj4o3jql8k34p (here)

In this episode about low temperature and freezer applications, Jens interviews John Broughton, Global Applications Expert, to discuss the practicalities, methodologies, and precautions. Here you can learn everything you need to know to build, maintain, and service low temperature refrigeration systems.

Jens is joined by Danfoss North America's favorite Canadian, Jamie Kitchen, to talk about superheat and the new TXV Superheat Tuner tool that's now a part of the Danfoss Ref Tools app. Jamie starts out by talking about superheat, what it is, and the benefits of adjusting the thermostatic expansion valve to the optimum superheat setting. He then covers how the Ref Tools app can now help you set the correct superheat in a matter of minutes instead of hours. https://bit.ly/3ds31pw (Download Ref Tool App here.)

The refrigeration industry is steadily moving towards more sustainable refrigerants, which can have a big impact on all of you out there in white vans with dirty hands. In this episode, Jens and Jorg take a look at new refrigerants including A2L and A3 types, the rules and regulations surrounding them, and how to work with them out in the field. They also touch upon the pros and cons of several specific variants and the special considerations you need to keep in mind when handling them.

In this episode of the Chilling with Jens podcast, Jens is joined by Drew Turner to talk about the benefits of oil-free heat pumps. They're quick to dive into the exciting possibilities in district energy, exploring how to utilize waste heat generated from supermarket cooling, wastewater treatment plants, and the like. They also touch on how to service and maintain Danfoss Oil-free Turbocor® compressors.  https://youtu.be/fnPs89klZ-Y (Heat pumps and Oil-free tech Q&A with Drew Turner (YouTube Livestream recording) ) https://kaltekreislaufer.captivate.fm/ (Der Kältekreisläufer mit Jörg Saar ( German podcast ))

Jens kicks off this episode with a very exciting update about Danfoss Climate Solutions and what that means for both the immediate and long-term future. He also dives into some other announcements about our new safety valve, the SFA 10H, and the EKE 400 superheat controller for industrial refrigeration. Finally, Eduardo Cruz stops by for a quick discussion on the Optyma™ Control Panel for commercial refrigeration. It's a jam-packed episode you won't want to miss!

Jens is joined by Mustafa Yanik to discuss the use of microchannel condensers and the impact of all-aluminum heat exchangers on daily work with the material, reduced size, and general treatment of MCHEs. https://www.danfoss.com/en/products/heat-exchangers/dcs/micro-channel-heat-exchangers/?utm_campaign=dcs_general&utm_content=mche-episode&utm_medium=social-organic&utm_source=podcast (Click to learn all about Danfoss MCHE)