Navien NaviCirc User Manual

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* A Taco 008-BC6 or Grundfos 15-42 BUC7 (or equivalent) circulation pump
is recommended for use with the NCB-H boiler and DHW recirculation
systems.
* When using the external recirculation mode, observe the following
maximum recirculation pipe lengths including ttings (
3
/
4
” pipe is
recommended). Lengths in excess of these limits will require a larger
recirculation pump.
Maximum Pipe Lengths
Pipe Diameter
1
/
2
"
3
/
4
"
Maximum Pipe Length 100 ft (30 m) 400 ft (120 m)
Note
●
To use HotButton mode, install a HotButton and
recirculation pump.
●
Install the NaviCirc recirculation valve to the faucet
furthest from the NCB-H boiler.
●
If installed in close proximity to the boiler, faucets
further down the supply line will take longer to
receive hot water.

Navien NaviCirc Specifications

General

Brand	Navien
Model	NaviCirc
Category	Control Unit
Language	English