Navien NPE-32AWE, Installation Manual

Page: 35 / 68

35 Insta ll ing the Water Heater
3 .7 E lectrical Connections
WARNING
Improperly connecting the electrical supplies can result
in electrical shock and electrocution. Follow all applicable
electrical codes of the local authority having jurisdiction.
Connecting the electrical components should be
performed only by a licensed professional.
DANGER
You must ensure that the water heater is disconnected
from the electrical supply before carrying out any
servicing inside the water heater and, particularly, on the
electric terminal strips.
If the electrical supply is connected electrical contact
could occur, causing serious damage and/or death due
to electrocution.
CAUTION
Label all wires before disconnecting them when you
work on the controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.
The water heater electrical connections must be made by
sufficiently qualified staff in strict compliance with the sections
below and with any electrical safety regulations applicable at
the time of installation.
Note
The water heater has an electrical protection degree
of IP
X 5D. The electrical connection must be made via
a bipolar switch located on the same premises as the
water heater. The switch must have a minimum pole
separation of 3 mm.
The water heater is pre-fitted with a main supply cable.
Fuse (5A)
When connecting the power supply, ensure the following:
The water heater must be electrically grounded.
Connect the water heater to a main supply of 230V AC, 50 H z
electrical supply.
A fuse with 5A electrical rating must be used.