What is the pressure corresponding to 32°F for R-123?

For refrigerants, the pressure corresponding to a specific temperature is determined by their saturation pressure values. At 32°F, R-123 has a saturation pressure that typically corresponds to around 20 inches of mercury (Hg) vacuum on the gauge.

This means that at 32°F, the vapor pressure of R-123 is such that it is below atmospheric pressure, indicating that the refrigerant is in a vapor state under those temperature conditions. Understanding the relationship between temperature and pressure for refrigerants is crucial for proper system charging and troubleshooting in HVAC applications.

When working with refrigeration systems, knowing the saturation pressures helps technicians ensure that the systems are adequately charged and operating within the correct parameters.