Connecting Cables; Connecting The Power Supply - Navien NCB-24LSWE Installation & Operation Manual

7.2 Connecting Cables

DANGER
Disconnect the main electrical supply before beginning any
work and make sure all the necessary safety precautions are
taken into account.
1. Remove the cap "A" from the cable gland on the underside
of the boiler.
2. Remove the black silicon seal "B" from the cable gland and
thread it onto cable "C".
B
3. Insert cable "C" into the lid "A" together with the seal "B".
38 Connecting Electrical Supplies
A
C
4. Insert all these elements in the cable gland and press on the
lid "A" until the cable is sufficiently fixed in place and the unit
is sealed.

7.3 Connecting the Power Supply

To correctly establish the boiler's electrical connection, follow
the indications given in the figure and the indications on the
identification label for the terminal strip connections.
The boiler must be connected to the supply terminals, which
are clearly indicated on the left side of the PCB, via the cable
supplied with the boiler for this purpose.
Live
Earth
Neutral
Detail View