Top off with R-32 if needed. It’s 70% of R-454B anyway. Remove the R-454B charge and replace it with R-410A. That’s what our rep told us to do. Mix your own R-454B in the field using 70% R-32 and 30% ...
WORD TO THE WISE: HARDI has warned against substituting R-410A for R-454B all summer. Now, real-world field data proves why that shortcut leads to poor cooling and costly damage. August 26, 2025 This ...
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