HVAC · Practice-Exam-1 · Problem 65PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 65
Problem & Solution
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Problem: During initial operating conditions, the cooling coil in a computer room air conditioning unit cools 90 degree entering air to 65 degrees.
Key step: The coil is designed for a maximum air-side delta T of 25 degrees.
Watch out: In case B after the change, we've now got a higher entering air temperature 95 degrees and we don't know what the discharge temperature is going to be...
Result: So just algebra there and we find that the discharge air temperature equals 71.7 degrees and the best answer choice is C so it'll be very easy in the ...
✅ Answer: C
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