R22 Superheat Subcooling Calculator Charging Chart

  • $10.95 USD
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Author: Refrigerant Reference

Publisher: Nash Enterprise

Release Date: 2007

Details: 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.

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254 reviews
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Freezing out there!

This little instrument is working fine and letting us know the in and out temps, the forecast and the correct time. What a marvel!

Temp reader 1

Great product. Awesome company . Thank you

Used it after receiving it and it appears to work OK.

I am sure your product is fine. It is an outdoor thermometer sensor. It didn't work. I believe the indoor clock receiver doesn't work. Thanks for asking.