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Title: could have been better
Review: the worst thing about this book is it went into detail on the wrong things.. i.e. liquid amplification, etc.for 20 bucks it's okay.. but the author is supposed to be well known in the refrigeration field and the title of the book was on refrigeration and charging and should have stuck to a solid foundation on how refrigeration works and how to charge.. in depth that would have given valuable information.. subjects that should have been covered in depth are airflow, humidity, heat load, etc.. how pressures and temperatures move heat and how to accurately measure when a unit is properly charged and what affects making that determination, i.e. heat load etc.. all in all like i said 20 bucks is not much to spend and it mostly gives you that in value.. so it wasn't money wasted.. it just could have been a better book..
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