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Navien NaviCirc User Manual
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25
The following diag
ram shows the external recir
culation ow for
pre-heating:
[External Recirculation Mode using the Recirculation Inlet]
Primary Heat Exchanger
Secondary Heat Exchanger
Buer
T
ank
Flow
Sensor
Domestic
W
ater
Supply
Hot
W
ater
Supply
Recirculation
W
ater Supply
Check V
alve
W
ater
Adjustment
V
alve
2-W
ay
V
alve
Closed
Circulation P
ump
24
26
Table of Contents
Table of Contents
3
About the Navicirc
5
Included Items
5
Specifications
6
Compatible Products & Pump Requirements
7
Configuration
8
Supply Connections
9
Installing the Navicirc
10
Installing the Navicirc
11
Leak Check & Air Purge
12
Securing the Navicirc to the Wall
13
Application System
14
NPE-A System
14
Application Guidelines
14
NPE-A System Diagram
18
NPE-A2/S2 System
22
Setting External Recirculation Mode
22
External Pump Wire Connection
26
Navien Hotbutton Kit (Optional)
32
System Application - External Recirculation
37
NPN System
42
External Pump Wire Connection
42
Adjusting the Recirculation Parameters
48
External Recirculation with Navicirc
50
External Recirculation with Hotbutton (Optional) and Navicirc
52
NCB-H System
54
Setting the DHW Operation
54
Setting External Recirculation
56
Examples of Electrical Connections
57
External Recirculation with Navicirc
62
External Recirculation with Hotbutton (Optional) and Navicirc
65
NFC-H System
69
Setting the DHW Operation
69
Setting External Recirculation
71
Examples of Electrical Connections
72
External Recirculation with Navicirc
80
External Recirculation with Hotbutton (Optional) and Navicirc
83
Troubleshooting
86
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Navien NaviCirc Specifications
General
Brand
Navien
Model
NaviCirc
Category
Control Unit
Language
English
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Navien NaviCirc Series
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