HVAC · Systems-and-Components · Problem 13PDFSolution in PDF ↓
HVAC · Systems-and-Components · Problem 13
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OH 105: HVAC: Systems And Components Module #13
Q: How do we differentiate between using the COP of a refrigerator versus the COP of a heat pump? How do we know which cycle is operating?
A: The key word is 'chiller' — a chiller is always making chilled water, which means it's always running a refrigeration cycle, full stop. The use of a refrigerant like R-134a can be a hint, but it's not ironclad since heat pumps also use refrigerants. Once you know it's a chiller, you know it's COP of refrigeration — and now that you've thought this through, you won't forget it.