HVAC · Practice-Exam-2 · Problem 67PDFSolution in PDF ↓
HVAC · Practice-Exam-2 · Problem 67
Problem & Solution
Video Synthesis
Topic: Pipe flow / fluid mechanics — A 1500 CFM 2-pipe fan coil unit with electric reheat maintains a room at 74 degrees and 50% relative humidity.
Method: The supplier from the unit is 58 degrees.
Formula reference: formula's substitution and solving.
Key values: 1500 CFM
✅ Answer: A
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Student questions asked in live office hours about this problem
OH 102: HVAC: Full Practice Exam #67
Q: And your solution you show the fan downstream of the reheat coil. How are we supposed to know that if the fan was upstream of the cooling coil the answer would be?
A: Yeah, that's a fair point. This problem was about a cooling application for a fan coil unit where you have cooling coil, a fan, and a reheat coil. And it's not clear what order those should appear in.