🔧 HVAC Refrigerant Charging and Troubleshooting Reference Cards for Quick Solutions Review

Happy with purchase. The font might be an issue for those of us with some dental experience, but there's a lot of information on the cards. A good product.

Very nicely done; durable, difficult to bend and easy to read. Concise to include only the essential information and professionally organized. Thank you for your great product.

This type of work is great but should be complemented with a troubleshooting section such as: B.: Diagrams, flow charts, tables. You can enlarge the sheet for very common heating and cooling troubleshooting methods.

Useful information but not for beginners. This is for reference, just in case. The printed font is pixelated, making it difficult to read for some. I think the material provided is great but the maps are below the quality of the information and need to be the same to make them equally great. I haven't used them, but it's good to have them just in case. The information is still consistent with the instructor's materials at the training center.