85
N
A/H
DHW
PRI
L
N
L
N
L
N
L
N
L
Z3
Z2
Z1
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
N
A/H
DHW
PRI
L
N
L
N
L
N
L
N
L
Z3
Z2
Z1
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
* Recirculation
Pump
Pump
Ground
DHW Supply
Return Water
City Water Supply
Check
Valve
Recirculation
Pump
(max. 2.5 A)
Neutral
Neutral
Live
Live
N
A/H
DHW
PRI
L
N
L
N
L
N
L
N
L
Z3
Z2
Z1
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
N
A/H
DHW
PRI
L
N
L
N
L
N
L
N
L
Z3
Z2
Z1
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
Wired
HotButton
Wired
HotButton
NaviCirc
Wired
HotButton
* 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
/
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
NFC-H boiler.
●
If installed in close
proximity to the boiler,
faucets further down the
supply line will take longer
to receive hot water.
Summary of Contents for NaviCirc
Page 41: ...41 Return Water NaviCirc Temperature Sensor Wired Push Button Wired Push Button...
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