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8.3 Connecting the Switched Live (230 V)
The boiler is designed to be connected to a switched live.
The switched live cables are to be connected to terminals 5
(Switched Live In) and 6 (AC Live Out) of the boiler terminal strip.
8.4 Connecting the Room Stat or
OpenTherm
The boiler is designed to be connected to a Room Stat (volt free)
or OpenTherm. The Room Stat or OpenTherm cables are to be
connected to terminals 1 and 2 of the boiler terminal strip.
Detail View
1
2
3
4
5
6
Detail View
1
2
3
4
5
6
8.5 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 3 and 4 of the boiler terminal strip.
8.6 OpenTherm® Protocol
OpenTherm® is an industry standard modulating control
available from several control manufacturers and the
NCB700 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
NCB700
Detail View
1
2
3
4
5
6
Room Controller
Connecting Electrical Supplies
57
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