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2.5.5 External Recirculation with HotButton
(Optional) and NaviCirc
External Recirculation Mode
For best performance, select the manual option in the External
recirculation DHW recirculation mode.
Note
Combi pre-heat is the default mode for DHW
recirculation. To select external recirculation, refer to
the combi pre-heat and external recirculation sections
in ā2.4.1 Setting the DHW Operationā on page 69 for
details.