Guest bio
Victor Marinich is the global marketing director for A/C at Danfoss.
Episode Summary
Victor Marinich, global marketing director for A/C at Danfoss, joins John Sheff, Danfoss’ former director of public and industry affairs, to discuss the 2023 rooftop regulations and the current innovations in product development.
Main Points
- In 2015, the federal government set two milestones for increased efficiency standards for rooftop HVAC units: 2018 and 2023. Each milestone required a 15% increase in seasonal energy efficiency.
- New standards are challenging for OEMs who have to consider size and weight of the unit. Trend is smaller and lighter.
- Components are becoming more efficient, such as more efficient compressors, moving from fixed-speed to variable-speed and microchannel heat exchangers that use less refrigerant.
- Refrigerant transition is coming in 2025 so most manufacturers will design new rooftop units that are smaller and compatible with low-GWP refrigerants. While meeting the 2023 standards, they will want to meet the 2025 standards, too.
- Danfoss has developed the DSH scroll compressor that works with both R410A and R454B. RTU manufacturers can start using it now and will be prepared to meet both sets of new standards.
- Contractors should expect installations of rooftop units to be somewhat more complicated, with the adoption of variable-speed compressors and electronic expansion valves. Danfoss has training resources on its website.
- Increase in electronic components makes the units more complex but also safer.
Links
Learn more about the 2023 standards.
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For more information and additional episodes of the EnVisioneering Exchange podcast, visit https://www.danfoss.com/en-us/about-danfoss/insights-for-tomorrow/envisioneering-exchange/
