System Application - External Recirculation - Navien NaviCirc Installation And Operation Manual

HotButton DIP SW1
Note
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HotButton DIP SW2
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2.2.4 System Application – External Recirculation
The following diagram shows the recirculation system's basic
operation of an NPE-A2/S2 series water heater system with the
Navien NaviCirc and Navien HotButton kit with or without a
dedicated return line.
The NPE-A2/S2 series water heaters have a built-in
Note
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Navien HotButton controller (the push button, wall
plate, and temperature sensor must be purchased
separately).
Install the NaviCirc to the faucet farthest from the
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water heater. If installed in close proximity to the
water heater, faucet pipes far away may not be
properly heated.
The Navien HotButton can be used ONLY with a water
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heater system configured for DHW recirculation.
All other recirculation functions will be disabled.
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- Enable or disable the HotButton function.
- Default: Enabled (OFF)
- Enable or disable the energy saver function.
- Default: Enabled (OFF)
- The energy saver function limits the operation time
of the recirculation system to reduce energy usage.
This function may be required to remain enabled to
meet local building code regulations.
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