How Europe is Beating North America in HVAC Innovation | Jamie Kitchen | Part 2

HVAC Know It All Podcast

Feb 20, 2025•20 min

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Episode description

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.