When inspecting a solar water heating system's potable water connections, which valve should be present to allow maintenance of the solar system without shutting down the entire building's water supply?

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Multiple choice — select the best answer

ASolenoid valves
BPressure reducing valves
CIsolation valves
DNeedle valves

✓ Correct answer: C. Isolation valves Isolation valves are required to allow service and maintenance of the solar heating system components without interrupting water service to the rest of the building.

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When inspecting a solar water heating system's potable water connections, which valve should be present to allow maintenance of the solar system without shutting down the entire building's water supply?

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