John Wood Noritz Concentric Vent - NR98-DVC (N-0751M) - Manual (Page 20)

20
Do not connect electrical power to the unit until all electrical wiring has been completed.
Consult a qualified electrician
for the electrical work. 12.
Electrical Wiring
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 improper
and dangerous operation.
Verify proper operation after servicing.
Field wiring to be performed at time of appliance installation.
• The electrical supply required by the water heater is
120VAC at 60 Hz.
The power consumption may be up to 161W or higher if
using optional accessories.
Use an appropriate circuit.
• Do not disconnect the 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.
• 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.
Disconnect Power
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.
WARNING
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 protect product’s electronic control.
CAUTION
Ground
• To prevent electrical shock, provide a ground
with resistance less than 100 . An electrician
should do this work.
• A grounding screw is provided on the back in
the junction box.
Do not connect the ground to the city water
or gas piping. Do not tie the ground to a tele-
phone line.
Breaker Installation
• Mount a device which shuts off the electrical
path automatically (leakage breaker) when
electrical leakage is detected.
1. Remove the screw (one) of the junction box and
open the cover of the junction box.
2. Connect the grounding wire to the ground screw in
the cover.
3. Crimp the outdoor power cable to the power cable of
the unit.
Junction Box
Power Cord
Ground