How does the Moen Flo Shutoff respond to hot water recirculation loops in the plumbing system?

This article contains information relevant to the Moen Flo Shutoff, which was formerly known as the Flo Smart Water Monitor and Shutoff system.

This article contains information relevant to the Moen Flo App, which was formerly known as the Moen Smart Water Network app, Moen Smart Water app, Moen app, and Flo by Moen app.

Moen recommends turning off the power to water heating appliances when water is shut off for extended periods of time. Appliance safety relief devices rely on water make-up in event of heating control failure.