Navien NaviCirc Installation And Operation Manual page 77

lLWCO
AC24VL
AC24VN
T/S_ZONE2 T/S_ZONE1 T/S_ZONE1
R C R C R C C
W W W
Thermostat 1 Thermostat 1
lLWCO
AC24VL
AC24VN
Recirculation Timer, Recirculation Timer,
Aquastat, Aquastat,
or HotButton or HotButton
Push Button Push Button
* If the DHW recirculation
menu is set to the Always On,
Intelligent, or Weekly option,
no aquastat or additional
HotButton is required.
Note
The C terminals are for
●
optional connections with
24 V thermostat COMMON.
When using combi pre-
●
heat, using a recirculation
pump is not necessary.
Select combi pre-heat on
the DHW recirculation
menu of the parameter
setting part.
When using external
●
recirculation, install a
recirculation pump and
select external recirculation
in the DHW recirculation
menu.
77