About the Boiler 41
3.6.5 Wiring Diagram - the Navien SmartZone +
The Navien Smart Zone + controller may be used with the NFB Boilers to operate a heating system with more than 3 zones.
When Navien boilers are used with a Navien Smartzone+ zone pump controller, an RS-485 data communication link is established through the
Ready-link connection. This allows the controller and the boiler to share operational information and to control the zones more efficiently by
minimizing unnecessary pump operation. The communication link also provides an optimal control environment for freeze protection.
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To Navien
Cascade System
Indoor
Sensor
Navien Ready-Link Cable
Navien Smartzone+
Zone Pump Controller
Refer to the user manual that is supplied with the Navien Smartzone+ zone pump controller for details.
Note
The Navien zone controller option in the Ext Connection menu must be set to "ON." To view the Navien zone controller setting, tap
the Set button (
) > Ext Connection on the front panel.
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