Connecting The Room Stat Or Opentherm; Connecting The Outdoor Temperature Sensor; Opentherm® Protocol; Connecting The Navien Smart Room Controller (Optional) - Navien NCB-24LDWE Installation & Operation Manual

8.3 Connecting the Room Stat or
OpenTherm
The boiler is designed to be connected to a Room Stat or
OpenTherm. The Room Stat or OpenTherm cables are to be
connected to terminals 1 and 2 of the boiler terminal strip.
8.4 Connecting the Outdoor Temperature
Sensor
The boiler is designed to be able to function with an outdoor
temperature sensor. The sensor cables are to be connected to
terminals 5 and 6 of the boiler terminal strip.
38 Connecting Electrical Supplies
Detail View
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2
3
4
5
6
Detail View
1
2
3
4
5
6
8.5 OpenTherm® Protocol
OpenTherm® is an industry standard modulating control
available from several control manufacturers and the NCB
LDWE boiler has an OpenTherm® interface. This enables
our modulating range of OpenTherm® room controls to be
connected without any further modifications.
1
2
3
4
5
6
OpenTherm® Protocol
NCB LDWE
8.6 Connecting the Navien Smart Room
Controller (Optional)
Instead of using your boiler with a generic room thermostat, you
can connect the Navien Smart Room Controller (NR-35D) to the
boiler and benefit from various additional features and more
efficient control of the heating system using a mobile device.
As the Navien NCB series boiler has a dedicated connector for
the Navien Smart Room Controller on the back of the front
panel, terminal connection at the terminal block is not required.
Simply connect the Navien Smart Room Controller cable to the
2-pin connector.
You need to install an app on your mobile device to
Note
control the boiler from your mobile device.
Refer to the instruction manual that is provided
with the Navien Smart Room Controller about the
additional features available with the controller.
Room Controller