HVAC Temperature Measurement Conversion - In air conditioning and heating applications it is necessary to accurately measure temperature to offer control of the temperatures relative to the application for which the HVACR equipment is serving. There are four separate temperature scales used to measure temperature and it becomes necessary at times to have the ability to convert between the different scales. The two most common scales used by most people are Fahrenheit and Celsius. Fahrenheit is mostly used in the United States where the culture has resisted changing from standard measurements to the metric system. Celsius is used throughout the world including the United States and Canada. Scientist often use Kelvin and Rankine measuring scales to measure temperature. These temperature scales, Rankine and Kelvin, are uncommonly used in popular culture no matter where you live in the world except by the scientific community and are often used to measure extreme temperatures.
HVAC Temperature Measurement Conversion
Degrees Celsius to Degrees Fahrenheit
1.8 X Temperature Celsius + 32 = Temperature Fahrenheit
Degrees Celsius to Kelvin
Degrees Celsius + 273 = Kelvin
Degrees Fahrenheit to Degrees Celsius
(Temperature Fahrenheit - 32) / 1.8 = Temperature Celsius
Degrees Fahrenheit to Degrees Rankine
Temperature Fahrenheit + 460 = Degrees Rankine
Kelvin to Degrees Rankine
1.8 X Kelvin = Temperature Rankine
Kelvin to Degrees Celsius
Kelvin - 273 = Degrees Celsius
Admittedly, it is unusual for a technician to have to convert in the field except in some cases where the manufacturer of any given product did not enclose the proper paperwork with their new equipment or perhaps a mistake was made and the proper paperwork was not included with the new equipment. I think the only way a technician would require these conversions on a regular basis is if they worked in a lab of some kind and they were constantly crunching data. Doesn’t matter, it is still good to have a reference for these things when they do occur. Be proficient to stay ahead of the pack.
Do you have a heat pump instead of an air conditioner? See our comprehensive heat pump category for help with heat pumps:
Furthermore, additional heat pump resources here:
- Heat Pump Troubleshooting.
- Heat Pump Problems
- Heat Pump Sequence of Operation
- Basic Maintenance for Heat Pumps
- How Heat Pumps Work
- Converting and Air Conditioner to a HeatPump
- Heat Pump Breaker Trips
You can learn more about HVAC and HVAC Technical Issues here.