Electrical Wiring - Noritz ecoTOUGH NRC98-DV-NG Installation Manual

13.

Electrical Wiring

Do not connect electrical power to the unit until all electrical wiring has been completed.
Disconnect Power
This appliance must be electrically grounded in accordance with local codes, or in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70. In Canada, the latest CSA C22.1 Electrical Code.
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improp-
er and dangerous operation.
Verify proper operation after servicing.
Field wiring to be performed at time of appliance installation.
Electrical Shock Hazard
Do not turn power on until electrical wiring is finished. Disconnect power before servicing.
Failure to do so may result in death or serious injury from electrical shock.
• The electrical supply required by the water heater is
120VAC at 60 Hz.
The power consumption may be up to 291W (NRC98-DV),
277W (NRC83-DV) or higher if using optional accessories.
Use an appropriate circuit.•
power supply when not in use. When the power is off, the
freeze prevention in the water heater will not activate,
resulting in possible freezing damage.
Ground
• To prevent electrical shock, provide a ground with resistance less than 100 . An electrician should
do this work.
Do not connect the ground to the city water or gas piping. Do not tie the ground to a telephone line.
Breaker Installation
• Mount a device which shuts off the electrical path automatically (leakage breaker) when electrical
leakage is detected.
Electrostatic discharge can affect electronic components. Take precautions to prevent electrostatic
discharges from personnel or hand tools during the water heater installation and servicing to pro-
tect product's electronic control.
WARNING
Do not disconnect the
CAUTION
Consult a qualified electrician
for the electrical work.
• Do not let the power cord contact
the gas piping.
Tie the redundant power cord out-
side the water heater. Putting the
redundant length of cord inside the
water heater may cause electrical
interference and faulty operation.
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