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Electrical Wiring

Chapter4.–Installation

Donotconnectelectricalpowertotheunituntilallelectricalwiringhasbeencompleted.

Thisappliancemustbeelectricallygroundedinaccordancewithlocalcodes,orintheabsenceoflo-

cal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 172W.

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.

• The electrical supply must be connected by designated power circuit.

• Do not let the power cord contact the gas piping.

Tietheredundantpowercordoutsidethewaterheater.Puttingtheredundantlengthofcordinsidethe

waterheatermaycauseelectricalinterferenceandfaultyoperation.

Ground

• To prevent electrical shock, provide a ground with resistance less than 100Ω . 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.

4-7. Electrical Wiring

Do not connect electrical power to the unit until all electrical wiring has

been completed.

WARNING

ElectricalShockHazard

Do not turn power on until electrical wiring is nished. Disconnect power before servicing.

Failure to do so may result in death or serious injury from electrical shock

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.

Do not disconnect the electric power, gas and inlet water supply when not in use. If any of these item are

not properly connected freezing damage may occur. In this case, please drain all of water in the unit includ-

ing condensate trap and unplug the unit.

CAUTION

Noritz Eco TOUGH NRCP1112-DV User Manual

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