Noritz NRC1111-DV User manual

SBA8723

Rev. 10/11

Models : NRC1111-DV

NRC1111-OD

CONDENSING TANKLESS GAS WATER HEATER

Owner’s Guide

NORITZ America Corporation

-Donotstoreorusegasolineorotherammablevaporsandliquidsinthe

vicinityofthisoranyotherappliance.

-WHAT TO DO IF YOU SMELL GAS

•Donottrytolightanyappliance.

•Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.

•Immediatelycallyourgassupplierfromaneighbor’sphone.Followthe

gassupplier’sinstructions.

•Ifyoucannotreachyourgassupplier,calltheredepartment.

-Installationandservicemustbeperformedbyaqualiedinstaller,service

agencyorthegassupplier.

If the information in this manual is not followed exactly, a re or explosion

may result causing property damage, personal injury, or death.

WARNING

Thank you for purchasing this Noritz Tankless Gas Water Heater.

Before using, please:

Read this manual completely for operation instructions.

Completely ll out the warranty registration card (included separately) and

mail the detachable portion to Noritz America Corporation.

Keep this manual (and the remainder of the warranty registration card) where

it can be found whenever necessary.

Installation must conform with local codes, or in the absence of local codes,

the National Fuel Gas Code, ANSI Z223.1/NFPA 54.

When applicable, installation must conform with the Manufactured Home

Construction and Safety Standard, Title 24 CFR, Part 3280 or the Canadian

Standard CAN/CSA-Z240 MH Mobile Homes, Series M86.

Noritz America reserves the right to discontinue, or change at any time, the

designs and/or specications of its products without notice.

FOR USE IN RESIDENTIAL OR MANUFACTURED HOME APPLICATIONS.

CERTIFIED

*SBA8723*

Low NOx Approved

by SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

Prohibited Don’t

touch.

Don’t

disassemble

the equipment.

Don’t touch

with a wet

hand.

No ame.

High

Temperature.

To prevent damage to property and injury to the user, the icons shown below will be used to warn of

varying levels of danger.

Every indication is critical to the safe operation of the water heater and must be understood and observed.

Potential dangers from accidents during installation and use are divided into the following four

categories. Closely observe these warnings; they are critical to your safety.

Other icons

DANGER

WARNING

CAUTION

DANGER indicates an imminently hazardous situation which,

if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially

hazardous situation which, if not avoided, may result in property damage.

CAUTION

Be sure

to do. Ground.

Electric

Shock.

DANGER

 Iconswarningofrisklevel

ImportantSafetyInformation-1

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.

Obey all safety messages that follow this symbol to avoid possible injury or death.

Vaporsfromammableliquidswillexplodeandcatchrecausingdeathorsevereburns.

Do not use or store ammable products such as gasoline, solvents or

adhesives in the same room or area near the water heater.

Prohibited

Keepammableproducts:

1.Farawayfromthewater

 heater.

2.Inapprovedcontainers.

3.Tightlyclosed.

4.Outofchildren’sreach.

Vapors:

1.Cannotbeseen.

2.Vaporsareheavierthanair.

3.Goalongwayontheoor.

4.Canbecarriedfromotherrooms

tothemainburnerbyaircurrents.

HotWaterHeatertemperaturesover125°F(52°C)cancausesevereburns

instantlyordeathfromscalding.

Children, disabled and elderly are at the highest risk of being scalded.

Feel water temperature before bathing or showering.

Temperature limiting valves are available, ask professional person.

Prohibited

(Continued)

No ame.

(Continued)

WARNING

Be sure

to do.

Whenagasleakisnoticed:

1. Stopuseimmediately.

2. Closethegasvalve.

[NRC1111-DV]

3. Openwindowsanddoors.

Ifyoudetectabnormalcombustion

orabnormalodors,orduringan

earthquake,tornadoorre:

1. Turnoffthehotwatersupply.

2. Turnoffthepowertothewater

heater.

3. Turnoffgasandwatersupply

valve.

4. CallthenearestNoritzagent.

Be sure

to do.

Donotallowanyonetochangethewater

temperaturewhilehotwaterisbeingused.

To prevent scalding, do not change the

water temperature to a higher setting.

Prohibited

A.Thiswaterheaterdoesnothave

apilot.Itisequippedwithan

ignitiondevicethatautomatically

lightstheburner.Donottryto

lighttheburnerbyhand.

B.

BEFORE OPERATING smell all

aroundthewaterheaterareafor

evidenceofleakinggas.Besure

tosmellnexttotheoorbecause

somegasisheavierthanairand

willsettleontheoor.

 WHATTODOIFYOUSMELLGAS.

•Donottrytolightany

appliance.

•Donottouchanyelectrical

switch;donotuseanyphone

inyourbuilding.

•

Immediatelycallyourgas

supplierfromaneighbor’s

phone.Followthegassupplier’s

instructions.

•

Ifyoucannotreachyourgas

supplier,calltheredepartment.

C. Useonlyyourhandtoturn

thegasvalveknob.Neveruse

tools.Iftheknobwillnotturnby

hand,don’ttrytorepairit.Call

aqualiedservicetechnician.

Forceorattemptedrepairmay

resultinareorexplosion.

D. Donotusethiswaterheaterif

anyparthasbeenunderwater.

lmmediatelycallaqualied

servicetechniciantoinspectthe

waterheaterandtoreplaceany

damagedparts. (Continued)

Prohibited

Checkthetemperature

oftherunninghotwater

beforeenteringthe

shower.

Checkthetemperature

beforesteppinginto

thebathtub.

High

Temperature.

ExplosionHazard;

Ifthetemperatureandpressurerelief

valveisdrippingorleaking,havea

qualiedservicetechnicianreplaceit.

Donotplugorremovethevalve.

Failure to follow these instructions can re-

sult in re or explosion, and personal injury

or death.

Prohibited

[NRC1111-DV]

Do not use the water heater

iftheintake/exhaustpipe

isdisplaced,hasholes,is

cloggedoriscorroded.

Afterthewaterheaterhasbeenoutof

useforalongtimemakesurethatyou

llthecondensatetrapwithwater.

Thisistopreventdangerousexhaust

gasesfromenteringthebuilding.

Failuretollthecondensatetrapcould

resultinseverepersonalinjuryordeath.

(Refertopage20forfurtherinstructions.)

Be sure

to do.

Prohibited

[NRC1111-OD]

DoNotInstallIndoors.

This will cause carbon

monoxide poisoning and

a potential re hazard. Indoor

Be sure

to do.

[Whensupplyingcombustionair

fromtheindoors]

Checkwhetherornottheair

supplyventisblockedwith

dust,trash,atowel,orthelike.

Blocking the opening may result

in incomplete combustion.

Towel

Air supply vent

Donotplacetheexhaustventterminal

inanindoorenvironmentbymeansof

addingwallsandceiling(Donoten-

closeusingcorrugatedsheets,etc.)

Carbon monoxide poisoning or re may

occur as a result.

ImportantSafetyInformation-2

(Continued)

Ifthisunitwillbeinstalledinabeauty

salon or other location where hair

sprayoraerosolswillbeused,locate

the unit in a separate area that is

suppliedwithfreshairfromoutdoors.

Prohibited

Besurethegas/power

supplied matches the

gasontheratingplate.

Ex.ForNaturalGas(NRC1111-DV)

Installationandservicemustbe

performedbyaqualiedinstaller,

serviceagencyorthegassupplier.

Be sure

to do.

Be sure

to do.

(Continued)

Prohibited

Do not store or use gasoline or other

ammablevaporsandliquidsinthe

vicinityofthisoranyotherappliance.

Prohibited

Donotplaceoruseaspraycan

near

thewaterheaterortheexhaustvent

terminal.

Donotusehairsprayorspray

detergentinthevicinityofthe

heater.

Prohibited

[NRC1111-DV]

Donotplaceoutdoors.

Rain may enter the unit

or the burner fire may be

blown by the wind, causing

malfunction or re as a result.

Prohibited

Outdoor

Leavetheproperclearancebetween

thewaterheaterandnearbyobjects

(trees,timber,boxeswithammable

materialsetc.).

Be sure

to do.

*Indicates suggested clearances for maintenance.

Donotplacecombustiblessuchas

laundry,newspapers,oilsetc.nearthe

heaterortheexhaustventterminal.

Prohibited

Donotusecombustiblechemicals

suchasoil,gasoline,benzeneetc.

intheneartheheaterortheexhaust

ventterminal.

Prohibited

CarbonMonoxidePoisoningHazard.

Do not install this water heater in a

recreationvehicleoronaboat.

Prohibited

WARNING

Left side:

Min. 2" (50mm)

Right side:

Min. 2" (50mm)

Front:

Sug. 24" (600mm)*

Sug.3" (75mm)

from vent pipe*

Upper:

Min. 12" (300mm)

Exhaust vent

terminal

Exhaust vent

terminal

Unit

[NRC1111-DV]

Left side:

Min. 6" (150mm) Right side:

Min. 6" (150mm)

Upper:

Min. 36" (900mm)

[NRC1111-OD]

Unit

Front:

Sug. 24" (600mm)*

Be sure

to do.

[Whensupplyingcombustionair

fromtheindoors]

Checktheairsupplyopening

fordustorobstructions.

Clogged

air supply

opening!!

(Continued)

Donotallowsmallchildrentoplay

unsupervisedinthebathroom.

Donotallowsmallchildrentobathunsupervised.

Do not touch the power

cordwithwethands.

Electric

Shock.

Don’t touch

with a wet

hand.

Prohibited

ContactNoritzbeforeusingwith

asolarpre-heater.

Contactaqualiedservice

technicianforanynecessary

repairs,serviceormaintenance.

ConsultthenearestNoritzagentif

the water heater location needs to

bechanged.

Don’t

disassemble

the equipment.

Be sure

to do.

Be sure

to do.

CaliforniaProposition65listschemicalsubstances

knowntothestatetocausecancer,birthdefects,

death,seriousillnessorotherreproductiveharm.

Thisproductmaycontainsuchsubstances,

betheiroriginfromfuelcombustion(gas,oil)

orcomponentsoftheproductitself.

CAUTION

Besuretoelectricallygroundthe

unit.

Keeppowercordfreeofdust.

Ground.

Be sure

to do.

Donotusethewaterheaterfor

otherthanhotwatersupply,shower

andbath.

Prohibited

Donotcoverthewaterheaterand

theexhaustventterminal,storetrash

ordebrisnearit,orinanywayblock

theowoffreshairtotheunit.

Donotturnoffthewaterheater

whilesomeoneisbathing.

Prohibited

Donotuseabrokenormodiedpowercord.

Donotbind,bendorstretchpowercords.

Donotscratch,modify,orsubjectthemto

impactorforce.

Donottouchtheexhaustventpipe

andexhaustventterminalduring

orimmediatelyafteroperationof

thewaterheater.

Do not install in locations where

excessivedustordebriswillbe

intheair.

Prohibited

Don’t

touch.

Prohibited

Be sure

to do.

Topreventburnsorscalding,turnoffthe

powerbuttonandwaituntiltheequipment

coolsbeforeperformingmaintenance.

Thegasconversionkitshallbeinstalledbya

qualiedserviceagencyinaccordancewith

themanufacturer’sinstructionsandall

applicablecodesandrequirementsofthe

authorityhavingjurisdiction.The

informationintheinstructionsmustbe

followedtominimizetheriskofreor

explosionortopreventpropertydamage,

personalinjury,ordeath.Thequalied

serviceagencyisresponsiblefortheproper

installationofthiskit.Theinstallationisnot

properandcompleteuntiltheoperationof

theconvertedapplianceischeckedas

speciedinthemanufacturer’sinstructions

suppliedwiththekit.

Donotusecondensate,discharged

fromthedrainpipe,fordrinkingor

forconsumptionbyanimals.

Prohibited

[NRC1111-DV] [NRC1111-OD]

ImportantSafetyInformation-3

CAUTION

Donotdrinkwaterthathasbeeninsidethe

unitforanextendedperiodoftime.Donot

drinktherstuseofhotwaterfromthe

unitinthemorning.

Cleanthelteronthewaterinletas

frequentlyasrequiredbythequalityof

yourlocalwater.

Keeptheareaaroundtheunitclean.

If boxes, weeds, cobwebs, cockroaches etc. are in

the vicinity of the unit, damage or re can result.

Donotinstalltheequipmentwherethe

exhaustwillblowonwallsorwindows.

Problemsresultingfromscaleformation

arenotcoveredbythewarranty.

Thisunitisonlyapprovedforinstallation

upto4500ft.(1350m)abovesealevel.

For installations at higher elevations, contact Noritz

America for Instructions.

Checkignitionduringuseandextinction

afteruse.

Ifthewatersupplyisinexcessof12grains

pergallon(200mg/L)ofhardness,acidic

orotherwiseimpure,treatthewaterwith

approvedmethodsinordertoensurefull

warrantycoverage. Preventingdamagefromfreezing( p.18)

Damage can occur from frozen water within the

device and pipes even in warm environments.

Be sure to read below for appropriate measures.

Repairs for damage caused by freezing are not

covered by the warranty.

Takenecessarymeasurestoprevent

freezingofwaterandleakageofgaswhen

leavingtheunitunusedforlongperiodsof

time.( p.19)

Donotusepartsotherthanthosespecied

forthisequipment.

Ifitissnowing,checktheexhaustvent

terminalforblockage.

Donotdisassembletheremotecontroller.

Donotusebenzene,oilorfatdetergents

tocleantheremotecontroller.

This may cause deformation.

Donotgettheremotecontrollerwet.

Although it is water resistant, too much water can

cause damage.

Do not splash water on the remote

controller.Donotexposetheremote

controllertosteam.

Do not locate the remote controller near stoves or

ovens, this may cause damage or failure.

Do not run water through the unit when

unitisnoton.

When discharging hot water, make sure the unit is ON.

If water is run through the unit with the unit

OFF, water may condense inside the unit and cause

incomplete combustion or damage to the internal

electrical components.

For single-handle xtures or valves, discharge

water setting the handle completely

to the water side.

 ImportantSafetyInformation....................................................................... 2

Contents......................................................................................................... 7

 OverviewofCondensingTanklessGasWaterHeater.............................. 8

General Parts

Main Unit.................................................................................................... 9

Remote Controller.................................................................................... 10

Initial Operation............................................................................................ 11

How to Use

Setting and Using the Water Heater........................................................ 12

Flow Meter Alarm...................................................................................... 14

Muting the Remote Controller.................................................................. 16

 AdjustingtheMaximumOutputTemperature........................................ 17

 PreventingDamagefromFreezing............................................................. 18

Regular Maintenance................................................................................... 21

 Troubleshooting........................................................................................... 23

 Follow-upService........................................................................................ 28

 Specications............................................................................................... 30

Contents

Cold water

Gas

Hot water

Condensate

Combustiongas

About

400˚F(200˚C)

Exhaust Exhaust

About

120˚F(49˚C)

Conventional

type

Condensing

TanklessGas

Water Heater

Water is heated

usingtheexhaust

gaswhichisabout

400˚F(200˚C)

.

Primary heat exchanger

Secondary heat exchanger

condensate trap

Combustiongas

About

400˚F(200˚C)

About

400˚F(200˚C)

Thecondensingtanklessgaswater

heaterdischargescondensate.

When heat from the exhaust gas is collected within

the secondary heat exchanger, condensation occurs

from moisture in the exhaust gas and the resulting

water is discharged from the drain pipe (approx.

2 gallons/hour (7.5 liters/hour) maximum). It is not a

water leak. Do not plug or block the drain line as it

must always be allowed to freely ow.

Note : The condensate discharged is acidic with a pH

level of approximately 2-3.

A condensate neutralizer may be required by

local code prior to disposal.

Drain pipe

(Installation example)

OverviewofCondensingTanklessGasWaterHeater

This water heater is a high efciency, fully condensing appliance. Unlike a traditional tankless water

heater, a condensing type captures heat from the exhaust gas and uses it to preheat the incoming

cold water as it passes through the secondary heat exchanger as illustrated below.

Thecondensingtanklessgas

water heater tends to show

whitesteam.

After the exhaust gas passes through the

secondary heat exchanger, it becomes low in

temperature and moisture rich which tends to

produce steam at the vent discharge terminal.

This is a normal occurrence.

Condensate

comes out from

here.

During combustion, white

steam may often be seen.

This is normal.

[NRC1111-DV]

IndoorWallMounted,PowerVent/SealedModel

* Theaboveillustrationshowsanexampleofinstallation.

The exact installation conguration may be slightly different.

Main Unit

FrontCover

WaterSupplyValve

WaterDrainValve

(withWaterFilter)

(Inside Water Inlet)

(p.22)

PressureReliefValve

General Parts -1

IntakePipe

Flue Collar

GasSupplyValve

Drain Pipe

Discharges the

condensate.

[NRC1111-OD]

OutdoorWallMounted,PowerVentedModel

ExhaustVent

RemoteController(RC-7651M)

For setting the hot

water temperature,

the ow meter alarm,

and other settings.

PowerOn/OffButton

For turning the

heater on and off.

Flow Meter Alarm Set Button

For setting the ow

meter alarm.

( p.14-15)

Setting Buttons

* Before use, remove the protective sheet from the remote controller surface.

Temperature Setting

(Ex.:110°F)

Flow Meter Setting

The display will ash

after hitting the ow

meter alarm set button.

( p.15)

Error Code

When this indicator is lit,

the hot water temperature

can be set. ( p.12)

Whatisactuallydisplayeddependsonhowthewaterheaterisset.

A number will ash if

a failure occurs.

( p.27)

PriorityIndicator

Burner On Indicator

When burning, the

indicator is lit.

( p.13and15)

Note: As shipped from the factory, the remote controller is set to display in °F and gallons.

To adjust the display to °C and liters, refer to the Installation Manual.

General Parts -2

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