Rinnai ThermaCirc360 RUR199i Installation And Operation Manual page 63

ThermaCirc360™ Recirculation (Dedicated Mode)
Plumbing Diagram (Dedicated Mode)
Condensate Drain Line
Floor Drain
Hot Water Supply Line
Hot Water Fixtures
Rinnai Tankless Water Heater Installation and Operation Manual
Cold Water Supply Line
Locate Drain
Valve as close as
possible to the
Cold Water
Supply Tee.
Dedicated Recirculation Line
Gas Supply Line
63