Navien NaviCirc Installation And Operation Manual page 85

lLWCO lLWCO
AC24VL AC24VL
AC24VN AC24VN
lLWCO
AC24VL
AC24VN
C
Wired
HotButton
Wired
HotButton
Wired
HotButton
NaviCirc
* A Taco 008-BC6 or Grundfos
15-42 BUC7 (or equivalent)
circulation pump is
recommended for use with
the NFC-H boiler and DHW
recirculation systems.
* When using the external
recirculation mode, observe the
following maximum recirculation
pipe lengths including fittings
3
( / " pipe is recommended).
4
Lengths in excess of these limits
will require a larger recirculation
pump.
Maximum Pipe Lengths
Pipe
Diameter
Maximum
Pipe Length
Note
To use HotButton mode,
●
install a HotButton and
recirculation pump.
Install the NaviCirc
●
recirculation valve to the
faucet furthest from the
NFC-H boiler.
If installed in close
●
proximity to the boiler,
faucets further down the
supply line will take longer
to receive hot water.
85
1 / " 3 / "
2 4
100 ft 400 ft
(30 m) (120 m)