Navien NaviCirc Installation And Operation Manual page 40

NPE-S2 Water Heater
HotButton
Wired Push Button*
Kit*
Ball
Ball
Valve
Valve
External
Pump
DHW Supply
Expansion Tank
City Water Supply
[NPE-150S2/180S2/210S2/240S2]
* The HotButton kit, push buttons, and the temperature sensor are not
included with the water heater but are available for purchase.
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