At a pressure of 18.1 in. Hg vacuum, what is the saturation temperature of R-11?

The saturation temperature of a refrigerant at a given pressure is a critical aspect of understanding how that refrigerant behaves in a cooling system. For R-11, also known as trichlorofluoromethane, its saturation temperature can be determined by referring to refrigerant pressure-temperature charts, which show the relationship between the pressure of the refrigerant and its corresponding saturation temperature.

At a vacuum pressure of 18.1 inches of mercury (in. Hg), R-11 will have a specific saturation temperature that can be identified from these charts. In this case, the saturation temperature at that vacuum level is indeed 32°F. This means that at the pressure of 18.1 in. Hg, the R-11 refrigerant would boil or condense at this specific temperature.

This determination is crucial for technicians to ensure their systems operate efficiently and within design parameters. Knowing the saturation temperature allows for proper system diagnostics, refrigerant charging, and troubleshooting in various HVAC applications.