Condenser Approach Calculator
Condenser Approach Calculator
Calculate condenser approach from refrigerant saturation temperature and leaving condenser-water temperature.
Use temperatures from the same stable operating condition.

Want to understand what the number means?
The calculated result is one measurement. Learn how condenser approach is calculated and how to evaluate it with operating conditions and equipment context.
Read: What Causes High Condenser Approach? →Advanced
Formula
Condenser approach = condenser saturation temperature − leaving condenser-water temperature.
Assumptions
Both temperatures represent the same operating condition. The entered saturation temperature is assumed correct.
Limitations
This calculator does not verify sensor accuracy, refrigerant pressure accuracy, refrigerant selection, load, condenser-water flow, tower operation, or root cause. Approach alone does not prove fouling, charge problems, flow problems, tower problems, or sensor problems.