AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

What is the importance of properly sizing the expansion tank in an Alaska hydronic heating system?

Tank size does not matter An undersized tank causes the pressure relief valve to discharge, while an oversized tank wastes space and money The expansion tank must be the same size as the boiler Larger tanks always improve system performance

Correct Answer:

An undersized tank causes the pressure relief valve to discharge, while an oversized tank wastes space and money

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