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+ lurking - contributing
Join Date: Dec 2005
Location: Atlanta, Georgia
Posts: 679
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I'm starting this upgrade research as well for our 16-yr old system, still working ok. What I am seeing is multiple issues with the specialized use of A2L R-454B & R-32 including equipment higher costs, leak sensors, high pressures & temps, wiring, specific coils, service & blending issues and technician training. I would suggest finding an installer that still uses R-410A if possible, likely an overstock item with reduced cost. Supposedly, packaged 410A units are still being produced until 2028.
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