R410a Superheat Subcooling Calculator Charging Chart

I love these charts for their size and simplicity. They are small enough to fit inside your temp probe box tucked out of the way and very easy to read. I also like the fact that they have general dry bulb to wet bulb calculations written right on there for you to use, so under normal humidity/ conditions, they are very easy to use. They are pretty sturdy as well and don't wear down like other slide charts I've used. I would buy them again.

Gave me all the info I needed.Now I need to figure how to usethe information .

One side gives the simple superheat numbers and the other side is the super cool side. Just that simple. It could not be easier to use, and the price is about normal. If you need a simple pocket reference, you will like it well enough. I gave it only 4 stars because it is made of the hard "paper type" material that will not stand up to on-the-job abuse well. It will require that you treat it well or the outside will deteriorate rather quickly. However, if you keep it in your shirt pocket or in a clean dry place where the lettering on the outside does not get rubbed off, you will get years of good service from this! Enjoy.

Nicest Slidechart I've ever seen. Saves you a lot of time when the manufacturers spec is not available. I bought this along with an r22 version of the same chart. I also bought Yellow Jacket's digital P/T chart so now I can make all my SH/SC calculations quickly and professionally.

Perfect for reference, love that they are proceeded for long life.

a good quick reference for on the go technicians that need help with subcooling and superheat. get it, you need it.

Awesome results

Superheat Subcooling Calculator is very easy to use and helps ensure you add the correct amount of freon to your system.