Condenser Approach Calculator

Chiller Performance

Condenser Approach Calculator

Calculate condenser approach from refrigerant saturation temperature and leaving condenser-water temperature.

Condenser temperatures

Use temperatures from the same stable operating condition.

°F
°F
Calculated approach
— °F
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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? →
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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.