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

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A C-37 closed loop uses ethylene glycol (toxic) to protect a Reno DHW array. Per 2018 UPC 603.5.4, the heat exchanger that serves potable water shall be which construction?

Double-wall construction with the space between walls vented to the atmosphere Single-wall copper with no leak path A galvanized pipe coil lying in the tank with no listing No heat exchanger is allowed if any glycol is present

Correct Answer:

Double-wall construction with the space between walls vented to the atmosphere

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