NV C-37 Solar Practice Questions - Nevada C-37 Solar Contractor Examination Exam

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A closed glycol C-37 collector loop must absorb fluid expansion as the array heats. What device does FSEC practice install on that loop?

A listed expansion tank sized for the loop volume and temperature swing A second T&P valve used as the only expansion control An open bucket under a drain valve No expansion device, because glycol does not expand

Correct Answer:

A listed expansion tank sized for the loop volume and temperature swing

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