Calculators
HVAC School has some handy calculators to help with various HVAC/R field tasks, including recovery tank fill and more.
Superheat & Delta T
Calculate target superheat for fixed metering device (piston) systems and air split on 400 CFM per ton A/C
To learn more about Superheat and Delta T go HERE
Voltage Imbalance Calculator
Calculate three-phase voltage imbalance
To learn more about Voltage Imbalance go HERE
Nitrogen Pressure Calculator
To learn more about Nitrogen Pressure go HERE
Under Load Capacitor Test
Test capacitors while the system is running
Air Density
Accurately calculate air density based on local altitude and humidity
Recovery Tank Fill
Calculate total tank and refrigerant weights
Additional Charge Weight Calculator
Enter the length in Feet ADDITIONAL from the standard charge the system comes in. Many systems come charged for a 15' lineset but this is not universal. Make sure you follow the manufacturer's guides before using this calculator.
For more accurate and detailed information download HVAC School App
