A2L Refrigerants R-454B and R-32 Explained! Bottles, Changes, Rules, Tools!
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R-32 and R-454B Checking the Refrigerant Charge Scenarios! Practice for HVAC Techs!
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40 VACUUM PROCEDURE TIPS for HVAC Techs! Avoid Frustration and Save Time!
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A horribly installed disconnect leads to issues
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R454B Vs. R32, which is better? Not what you THINK!
18:56
How HVAC Techs Can Use A2L Refrigerants Without Replacing Recovery or Vacuum Tools | Jesse Stewart
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Maison canadienne en 10 jours. Processus de construction complet
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The TRUTH about the “new” refrigerants | R32 and R454B refrigerants phase in
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