



HVAC 3-Pack: R-22 & R-410A Superheat/Subcooling Calculators and Duct Calculator
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Category: trane ductulator

About this item
- Duct calculator has diagrams for properly calculating total equivalent length and pressure drop correction factors. A must have for high efficiency systems.
- No abridged information or rule of thumb calculations.
- 3 Slide charts for less that some sellers charge for 1!
- #1 Resources utilized for training at Colleges, Universities, and Training Centers
- Field proven by installers and technicians for over 30 years!