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Note
●
HotButton DIP SW1
- Enable or disable the HotButton function.
- Default: Enabled (OFF)
●
HotButton DIP SW2
- 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.
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.
Note
●
The NPE-A2/S2 series water heaters have a built-in
Navien HotButton controller (the push button, wall
plate, and temperature sensor must be purchased
separately).
●
Install the NaviCirc to the faucet farthest from the
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
heater system congured for DHW recirculation.
●
All other recirculation functions will be disabled.