Navien NaviCirc - Page 77

77
Without 24VAC Connections
N
A/H
DHW PRI
L N L
N L
N L N L
Z3Z2Z1
SUPPLY
TEMPERATURE SENSOR
RETURN OUTDOOR T/S_ZONE3
R
W
C
T/S_ZONE2
R
W
C
T/S_ZONE1
R
W
C
AC24VN
AC24VL
lLWCO
R
W
C
T/S_Recir
COM NO NC
ZONE_V/V3
COM NO NC
ZONE_V/V2
COM NO NC
ZONE_V/V1
SUPPLY
TEMPERATURE SENSOR
RETURN
OUTDOOR T/S_ZONE3
R
W
C
T/S_ZONE2
R
W
C
T/S_ZONE1
R
W
C
AC24VN
AC24VL
lLWCO
R
W
C
T/S_Recir
COM NO NC
ZONE_V/V3
COM NO NC
ZONE_V/V2
COM NO NC
ZONE_V/V1
Thermostat 3
Thermostat 2
Thermostat 1
Recirculation Timer,
Aquastat,
or HotButton
Push Button
N
A/H
DHW PRI
L N L
N L
N L N L
Z3Z2Z1
Zone pump 1
(max. 2.5 A)
Zone pump 2
(max. 2.5 A)
Zone pump 3
(max. 2.5 A)
Recirculation pump
(max. 2.5 A)
Pump Ground
Neutral
Neutral
Neutral
Neutral
Live
Live
Live
Live
N
A/H
DHW PRI
L N L
N L
N L N L
Z3Z2Z1
SUPPLY
TEMPERATURE SENSOR
RETURN OUTDOOR T/S_ZONE3
R
W
C
T/S_ZONE2
R
W
C
T/S_ZONE1
R
W
C
AC24VN
AC24VL
lLWCO
R
W
C
T/S_Recir
COM NO NC
ZONE_V/V3
COM NO NC
ZONE_V/V2
COM NO NC
ZONE_V/V1
SUPPLY
TEMPERATURE SENSOR
RETURN
OUTDOOR T/S_ZONE3
R
W
C
T/S_ZONE2
R
W
C
T/S_ZONE1
R
W
C
AC24VN
AC24VL
lLWCO
R
W
C
T/S_Recir
COM NO NC
ZONE_V/V3
COM NO NC
ZONE_V/V2
COM NO NC
ZONE_V/V1
Thermostat 3
Thermostat 2
Thermostat 1
Recirculation Timer,
Aquastat,
or HotButton
Push Button
N
A/H
DHW PRI
L N L
N L
N L N L
Z3Z2Z1
Zone pump 1
(max. 2.5 A)
Zone pump 2
(max. 2.5 A)
Zone pump 3
(max. 2.5 A)
Recirculation pump
(max. 2.5 A)
Pump Ground
* 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.