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R410a Superheat Subcooling Calculator Charging Chart

    • Based on 211 reviews
Condition: New
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$10.95 Why this price?

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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Tuesday, May 21
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Description

This is a very useful tool that takes the guess work out of charging cooling systems. One side of this tool is a slide chart used for calculating superheat for a NON-TXV system and the other side is a slide chart used to calculate subcooling on a TXV system. The photo shows both sides of the tool. This tool is made of thick durable water resistant paper stock with corner rivets. It fits easily in your shirt pocket at approximately 6.25 inches high by 3.25 inches wide. Read more

Publisher ‏ : ‎ Nash Enterprise (January 1, 2007)


Language ‏ : ‎ English


Item Weight ‏ : ‎ 0.317 ounces


Dimensions ‏ : ‎ 6.25 x 3.25 x 0.01 inches


Best Sellers Rank: #451,450 in Books (See Top 100 in Books)


Customer Reviews: 4.4 4.4 out of 5 stars 211 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • I love these charts for their size and simplicity
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. ... show more
Reviewed in the United States on September 10, 2015 by Coheed
    • Great tool for AC
Gave me all the info I needed. Now I need to figure how to use the information .
Reviewed in the United States on April 7, 2021 by Walt Gleason
    • Easy to use
Superheat Subcooling Calculator is very easy to use and helps ensure you add the correct amount of freon to your system.
Reviewed in the United States on June 30, 2019 by Ron G
    • This is small, thin, and pocket size.... a reasonable price too.
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. ... show more
Reviewed in the United States on May 17, 2014 by GLIverson
    • Perfect for reference.
Perfect for reference, love that they are proceeded for long life.
Reviewed in the United States on April 6, 2020 by todd wild
    • helpful
a good quick reference for on the go technicians that need help with subcooling and superheat. get it, you need it.
Reviewed in the United States on February 1, 2014 by Eric Gunn
    • Good card to have
Awesome results
Reviewed in the United States on April 4, 2022 by VICTOR
    • Helpfull
This calculator charging chart is very helpful when trying to determine the proper charge on a txv or non txv system,it's also not too big to carrying in my service vehicle and not too small that I can't read it.
Reviewed in the United States on July 1, 2012 by chris

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