--- product_id: 59282109 title: "R22 Superheat Subcooling Calculator Charging Chart" brand: "nash enterprise" price: "€ 20.92" currency: EUR in_stock: true reviews_count: 8 category: "Nash Enterprise" url: https://www.desertcart.sk/products/59282109-r22-superheat-subcooling-calculator-charging-chart store_origin: SK region: Slovakia --- # R22 Superheat Subcooling Calculator Charging Chart **Brand:** nash enterprise **Price:** € 20.92 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** R22 Superheat Subcooling Calculator Charging Chart by nash enterprise - **How much does it cost?** € 20.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/59282109-r22-superheat-subcooling-calculator-charging-chart) ## Best For - nash enterprise enthusiasts ## Why This Product - Trusted nash enterprise brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## 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. Review: Good to have on Hand - Good information for anyone working with HVAC Review: ok product - works great ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001U54YJ2 | | Best Sellers Rank | #1,335,973 in Automotive ( See Top 100 in Automotive ) #51 in Air Conditioning Diagnostic Equipment #2,508 in Air Conditioning Line Repair Tools | | Calculator Type | Engineering/Scientific | | Color | white | | Customer Reviews | 4.2 4.2 out of 5 stars (129) | | Display Type | LCD | | Item Dimensions L x W | 6.25"L x 3.25"W | | Item Weight | 0.01 Kilograms | | Manufacturer | Nash Enterprise | | Mfr Part Number | 43198-25890 | | Model Number | 43198-25890 | | Power Source | Battery Powered | | Screen Size | 6.25 Inches | ## Product Details - **Calculator Type:** Engineering/Scientific - **Color:** white - **Power Source:** Battery Powered - **Product Dimensions:** 6.25"L x 3.25"W - **Screen Size:** 6.25 Inches ## Images ![R22 Superheat Subcooling Calculator Charging Chart - Image 1](https://m.media-amazon.com/images/I/91o2yFC6FpL.jpg) ![R22 Superheat Subcooling Calculator Charging Chart - Image 2](https://m.media-amazon.com/images/I/91F7CdJ0WjL.jpg) ![R22 Superheat Subcooling Calculator Charging Chart - Image 3](https://m.media-amazon.com/images/I/81IdQde6rnL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good to have on Hand *by K***Y on July 14, 2025* Good information for anyone working with HVAC ### ⭐⭐⭐⭐⭐ ok product *by R***I on August 18, 2022* works great ### ⭐⭐⭐⭐ Good to have but could be more granular *by A***Y on October 23, 2012* I have to say I'm happy with this product because it does what it's supposed to, keeps you from having to carry a calculator while you are already dealing with temperature meters and pressure gauges, but the outdoor temperatures for Superheating is in 5 degree increments and the gauge pressure for Subcooling is in 10 PSIG increments, meaning you have to do some on the fly interpolation between the scales anyway. There is a lot of unused white space on the card, I don't understand why they didn't make the scales more granular. Maybe trying to save on ink? When trying to adjust a system by adding or recovering coolant, you aren't going to get to an exact degree of temperature or pound of gauge pressure anyway, systems just aren't deigned for that degree of accuracy, but I would like to start out with a more exact target to shoot for. Still, it's still a handy tool and sometimes its good to have the little reminders printed on the card on when to add and remove, because trying to coax a unit into compliance while hanging around for an hour or so in full sun when its 110 degrees in the shade (if there was any shade) is enough to make the best of us a bit confused and forgetful at times. ## Frequently Bought Together - R22 Superheat Subcooling Calculator Charging Chart - R410a Superheat Subcooling Calculator Charging Chart - AC Service Tech LLC HVAC Quick Reference Cards for Refrigerant Charging and Troubleshooting --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/59282109-r22-superheat-subcooling-calculator-charging-chart](https://www.desertcart.sk/products/59282109-r22-superheat-subcooling-calculator-charging-chart) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-19*