We have a water cooled Coil in a coil unit. We have a definite R22 leak and have a operational diagnostic question. The condenser water return temperature on a normal day would be in the 75* to 85* range. As we noticed the discharge air was not maintaining the space, we also noticed the water return temp went up drastically to the 190* range. Without doing an in depth pressure test, is this a good indicator that the refrigerant is leaking through to the water side?