Navien NPE-210A2 Installation Manual

35Installing the Water Heater
External Recirculation with HotButton and NaviCirc
1 2 3 4
ON
SW1
CE1
CE2
U1
C1
C2
C7
R6
PC1
12 V 5 V SIGNAL
SIGNAL 1
GND
R5
R9
R8
C3
R1
R2
R7
D1
CON3
CON5
CON2
CON1
SIGNAL 2
SENSOR I
RA1
HotButton Kit
NPE-A2 Water Heater
City Water Supply Return Water
Expansion Tank
Flexible Hoses
Flexible Hoses
NaviCirc*
DHW Supply
Temperature
Sensor*
Ball
Valve
Wired Push Button* Wired Push Button* Wired Push Button*
[NPE-180A2/210A2/240A2]
Note
●
Set the 2-way valve inside the water heater to the "Ext" position when using the NaviCirc
recirculation valve.
●
It is not necessary to install bypass piping from the cold line to the recirculation inlet fitting for
NPE-A2 models.
1 2 3 4
ON
SW1
CE1
CE2
U1
C1
C2
C7
R6
PC1
12 V 5 V SIGNAL
SIGNAL 1
GND
R5
R9
R8
C3
R1
R2
R7
D1
CON3
CON5
CON2
CON1
SIGNAL 2
SENSOR I
RA1
HotButton Kit
Ball
Valve
Ball
Valve
External
Pump
NPE-S2 Water Heater
City Water Supply Return Water
Expansion Tank
NaviCirc*
DHW Supply
Temperature
Sensor*
Wired Push Button* Wired Push Button* Wired Push Button*
[NPE-150S2/180S2/210S2/240S2]
* The NaviCirc recirculation valve, the push buttons, and the temperature sensor are not included with the water heater but are
available for purchase.

Navien NPE-210A2 Specifications

General

Brand	Navien
Model	NPE-210A2
Category	Water Heater
Language	English