Engineering calculator · Updated 17 September 2026
Chiller Condenser Approach Calculator — Saturation vs Leaving Water
Calculate condenser approach from refrigerant condensing saturation temperature and leaving condenser-water temperature, with entering-water range context.
Inputs
Live results
- Condenser approach 5 K
- Water-side range 5 K
- Saturation above entering water 10 K
Formula
Approach=Tcond,sat−LCWT.
Worked example
40°C condensing saturation and 35°C leaving water gives 5 K condenser approach.
Assumptions and limits
- Use refrigerant saturation temperature derived from measured condenser pressure.
- Sensor bias and fouling can materially change apparent approach.
FAQs
What does this Chiller Condenser Approach Calculator calculate?
Calculate condenser approach from refrigerant condensing saturation temperature and leaving condenser-water temperature, with entering-water range context.
Is this suitable for final equipment selection?
Use the result for engineering screening and operating diagnostics. Confirm final selections against measured data, OEM curves and applicable codes.
Why are the assumptions explicit?
Plant results depend on reference conditions, pressure basis, efficiencies and measurement locations. Showing assumptions keeps the calculation auditable.