Refrigeration 101

[Gary]

And then there is pressure.

If we raise the pressure, we raise the saturation temp. If we lower the pressure, we lower the saturation temp.

The pressure/temperature (P/T) chart (aka comparator) for our refrigerant tells us the saturation temp for a given pressure. Or for zeotropic refrigerant mixtures, it tells us the bubble point and/or dewpoint.

For those who confuse zeotropes with azeotropes, here's how I remember which is which:

Just as theist means with religion and atheist means without religion, zeotrope means with glide and azeotrope means without glide.