Refrigeration

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Choosing the wrong stub connection can delay a compressor install — learn the differences and why matching them saves time, money, and frustration.

CO₂ refrigeration is growing fast, but there are pros and cons for cascade, booster, and secondary loop systems. Discover which system  works best in different climates and for different applications.

EPA’s proposed refrigerant rule revisions would extend compliance deadlines and raise GWP limits. Industry groups are divided between supporting flexibility and warning of confusion and delayed transitions.

The proposed Significant New Alternatives Policy Rule 27 would list several lower-GWP substitute refrigerants as acceptable, subject to use conditions, for residential and light commercial air conditioners and heat pumps, chillers, household refrigerators and freezers, motor vehicle air conditioners, and fire suppression and explosion protection.

Here’s what HVAC contractors and techs had to say on social media in our latest HVAC Talkback regarding the extension of the R-410A deadline.

Starting next year, R-410A VRF systems will be phased out as new equipment transitions to low-GWP refrigerants. Contractors will play a vital role in helping end users understand their options.

Another refrigerant transition is inevitable, as innovation drives HVAC forward. But without clearer communication and coordination next time, contractors’ patience — and trust — may finally run out. 

A recent study has uncovered significant opportunities for year-round energy savings on CO2 refrigeration systems through the use of low-side strategies. 

Avoid shortcuts and common mistakes when troubleshooting refrigeration systems. Attention to detail not only improves your skills but also increases your value to your company.