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title: "Blog: The Latest in HVAC/R Design with Small Diameter Copper Tubes | VRF"
description: VRF | The Ultimate Resource for OEMs to Stay Informed on HVAC/R Design with Small Diameter Copper Tubes
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# The Latest in HVAC/R Equipment Design with Small Diameter Copper Tubes

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[![Embraco EDP display case cooling systems, which use 5 mm copper tubes in the condenser](https://blog.copper.org/hubfs/Embraco%20C3626%20EDP%205mm.jpg)](https://blog.copper.org/hvac/r/inside-ahr-expo-2026-a-new-direction-for-hvacr-system-design)

## [Inside AHR Expo 2026: A New Direction for HVACR System Design](https://blog.copper.org/hvac/r/inside-ahr-expo-2026-a-new-direction-for-hvacr-system-design)

[Marcus Elmer](https://blog.copper.org/hvac/r/author/marcus-elmer) 

 Apr 1, 2026, 4:54:07 PM

The AHR Expo, the largest showcase for HVACR technology in North America, serves as a focal point fo...

[Read more](https://blog.copper.org/hvac/r/inside-ahr-expo-2026-a-new-direction-for-hvacr-system-design)

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