Field answer
Direct answer
Low airflow can keep the evaporator from absorbing enough heat, which lets the coil temperature fall below freezing and build ice. Use the current equipment manual, code book, employer procedure, and qualified supervision before applying this on live work.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as HVAC field troubleshooting and drill a smaller set before returning to mixed practice.
Prep path
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