Noritz NRCP1112-DV Manuel utilisateur
Owner's Guide
WARNING
NRCP1112-DV / NRCP982-DV (Eco TOUGH)
•NaturalGas(NG)/LiquidPropaneGas(LP)
–Donotstoreorusegasolineorotherinammablevaporsandliquidsinthevicinityofthisoranyother
appliance.
– WHAT TO DO IF YOU SMELL GAS
•Donottrytolightanyappliance.
•Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
•Immediatelycallyourgassupplierfromaneighbor’sphone.Followthegassupplier’sinstructions.
•Ifyoucannotreachyourgassupplier,calltheredepartment.
–Installationandservicemustbeperformedbyaqualiedinstaller,serviceagencyorthegassupplier.
Iftheinformationintheseinstructionsisnotfollowedexactly,areorexplosionmayresult,causing
propertydamage,personalinjury,ordeath.
Models
CONDENSINGTANKLESSGASWATERHEATER
ThankyouforpurchasingthisNoritzTanklessGasWaterHeater.
Beforeusing,please:
Readthisguidecompletelyforoperationinstructions.
Completelylloutthewarrantyregistrationcard(includedseparately)andmailthedetachableportiontoNoritz
AmericaCorporation.Keepthisguide(andtheremainderofthewarrantyregistrationcard)where
itcanbefoundwhenevernecessary.
Installationmustconformwithlocalcodes,orintheabsenceoflocalcodes,theNationalFuelGasCode,ANSI
Z223.1/NFPA54.NoritzAmericareservestherighttodiscontinue,orchangeatanytime,thedesignsand/or
specicationsofitsproductswithoutnotice.
2
Owner’sGuide–TableofContents
Chapter1 ProductOverview Operating Flow chart 3
Chapter2 SafetyRegulations. Safety Precautions 4
Before Operation 7
When in Operation 9
Important Safety Information 11
Chapter3 UnitOperation Initial Operation 12
Control Panel Interface 13
Control Panel LCD Interface 14
HowtouseControlPanel
1. Clock Adjustment 15
2. Setting Hot Water Temperature 17
3. Locking the Control Panel 19
4. How to check the ‘Error History’ 19
5. How to check the ‘Running History’ 20
6. Setting the ‘Unit’ 21
7. Recirculation Timer Setup. (Recirculation Mode) 22
Recirculation _Auto Mode 24
Recirculation_Program Mode 25
Recirculation Initialization 27
8. Setting the ‘Recirculation System’ 28
External or Internal Setting 29
Recirculation water temperature Setting 30
9. Preventing Damage form Freezing-1 32
10. Preventing Damage form Freezing-2 34
Chapter4 Maintenance 1. General Maintenance 35
2. Cleaning the Water Heater 36
3. Flushing the Water Heater 38
4. Checking for Error Conditions 39
Chapter5 Troubleshooting Troubleshooting 40
Chapter6 Follow-upService Follow-up Service 41
Memo 42
3
Operating Flow Chart
Standard mode
Recirculation mode
Hot W ater
Col d W at er
Co nd en sat e
Gas
Exhaust About 120℉(49℃)
Water is heated
using the exhaust
gas which is about
400℉(200℃).
Air & Gas
Mixing
Combusion gas about
400℉ (200℃)
Primary heat
exchanger
Secondary heat
exchanger
Burner
Hot W ater
Recirculat ion Line
Condensate
Gas
Exhaust About 120℉(49℃)
Water is heated
using the exhaust
gas which is about
400℉(200℃).
Air & Gas
Mixing
Combusion gas about
400℉ (200℃)
Primary heat
exchanger
Secondary heat
exchanger
Burner
Co nd en sat e
Gas
Exhaust About 120℉(49℃)
Air & Gas
Mixing
Combusion gas about
400℉ (200℃)
Primary heat
exchanger
Secondary heat
exchanger
Burner
Re cir cu l a t i on Li n e
Water is heated
using the exhaust
gas which is about
400℉(200℃).
This water heater is a highly efcient, 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.
Therecirculationpipemust
beinstalledintheeldin
ordertoapplythe‘External
RecirculationMode’.
Thismodeallowsthe
waterheaterrecirculation
pipestobewarmedup
andservingasthefreeze
protectionfunction.
Thismodeis
availablewithouta
recirculationpipe
installed.Thewater
heaterispreheated
andprotectedfrom
freezing.
ExternalRecirculationmode InternalRecirculationmode
Operating Flow Chart
Thecondensingtanklessgaswaterheaterdischargescondensate.
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.
Condensate Pipe
Condensate
comes out from
here.
Chapter1.–ProductOverview
4
Safety Precautions
To avoid product damage, personal injury, or even possible
death, carefully read, understand, and follow all the instruc-
tions in the Installation and Owner’s Guide and on the Water
Heater before installation, operation, or service.
Noritz cannot anticipate every circumstance that might in-
volve a potential hazard and our warnings are, therefore, not
all-inclusive. Proper installation, operation, and service are
your responsibility.
You must be satised that the operation and settings of the
Water Heater are safe for you and for others.
Safety Symbols are provided in the guide. When a user fails to
adhere to the following requirements, it can cause death, serious
damage, and a great property loss. For safety symbols, ‘DAN-
GER’ , ‘WARNING’ , CAUTION’ are indicated and the denitions
for these terms are below :
DANGER
Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury. This signal word is limited to
the most extreme situations.
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. It is also used to alert
against unsafe practices and hazards involving only property
damage.
WARNING
FORYOURSAFETYREAD
BEFOREOPERATING
If you do not follow these instructions exactly, a re
or explosion could result causing property damage,
personalinjuryorlossoflife.
A. This appliance does not have a pilot. It is equipped with
an ignition device which automatically lights the burner. Do
not try to light the burner by hand.
B. BEFORE OPERATING smell all around the appliance
area for gas. Be sure to smell next to the oor because
some gas is heavier than air and will settle on the oor.
WHATTODOIFYOUSMELLGAS
• Do not try to light any appliance.
• Do not touch any electric 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 push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
don’t try to repair it, call a qualied service technician.
Force or attempted repair may result in a re or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualied service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.
WARNING
TOTURNOFFGASTOAPPLIANCE
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be
performed.
3. Turn manual gas shutoff valve to ˝OFF˝ position
Safety Precautions
Chapter2.–SafetyRegulations
5
WARNING
Safety Precautions
Chapter2.–SafetyRegulations
OPERATINGINSTRUCTIONS
1. STOP! Read the safety information above on this label.
2. Set the thermostat to lowest setting.
(Do not use Water Heater unless it is completely lled with
water.)
3. Turn OFF electrical power supply to the Water Heater.
4. This Water Heater is equipped with an ignition device
which automatically lights the main burner. Do not try to
light the burner by hand.
5. Turn gas shut-off valve clockwise to ˝OFF˝ position. Do not
force
6. Wait ve (5) minutes to clear out any gas. If you then smell
gas, STOP! Follow step ˝B˝ above on this label. If you don’t
smell gas, go to next step.
7. Turn manual gas shut-off valve to ˝ON˝ position.
8. Turn ON electrical power to the appliance.
9. Wait until default temperature (120°F) is displayed. Set
desired water temperature. Turn hot water faucet on.
10. Set thermostat to desired setting.
11. If the appliance will not operate, follow the instructions
˝To Turn Off Gas To Appliance˝ and call your service
technician or gas supplier.
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
appliance.
Keepammableproducts:
Far away from Water Heater
In approved containers
Tightly closed
Out of children’s reach
Vapors
Cannot be seen
Vapors are heavier than air
Go a long way on the oor
Can be carried from other rooms to the main burner by air
currents
Do not install the appliance where ammable products will
be stored.
Read and follow Water Heater warnings and instructions. If
owner’s guide is missing contact the retailer or manufacturer.
DANGER
Use this Water Heater at your own risk.
The outlet temperature of the Noritz Water Heater is fac-
tory preset to 120°F (49°C). The temperature can only be
changed by using the control panel.
Hot water temperature 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. Do not leave
children or the infants unsupervised. Check temperature of
hot water before taking a shower or bath. To control water
temperature to a particular faucet, temperature limiting valves
can be installed by your service professional.
DANGER
This appliance is certied for use at altitudes up
to 4,500ft(1,370m) in accordance to the latest CAN/
CGA 2.17-High Altitude Installation procedures at
normal manifold pressure.
Safety Precautions
6
Safety Precautions
Chapter2.–SafetyRegulations
Proper care is your responsibility. Carefully read
and understand the Operating Information in this
guide before operating the Noritz Water Heater.
Be fully aware of where the gas shut-o valve is
located and how to operate it.
Close the gas shut-o valve immediately if the
appliance is subjected to re, overheating, ood,
physical damage, or any other damaging condition
that might aect the operation of the unit.
The Water Heater must be checked by a qualied
technician before resuming operation.
DO NOT use this Water Heater if any part has
been under water, call a qualied technician
immediately for inspecting the Water Heater and
for replacing any part of the control system and
any gas control which has been under water.
Do not power up the unit unless the gas and water
supply valves are fully opened. Make sure that fresh
air intake ue and exhaust gas ue are opened and
functional.
DO NOT attempt to install, repair, or service the
Water Heater by yourself.
Contact a qualied technician if the Water Heater
needs repair or maintenance.
Ask your gas supplier for a list of qualied service
providers.
˝Verify proper operation after servicing operation˝
The gas ignition system components must be
protected from water (dripping, spraying, rain, etc.)
during appliance operation and service (circulator
replacement, condensate trap, control replacement,
etc.)
PRODUCTSTOAVOID AREASLIKELYTOHAVECONTAMINANTS
Spraycanscontaininguorocarbons Drycleaning/laundryareasandestablishments
Permanentwavesolutions Swimmingpools
Chlorinatedwaxes/cleaners Metalfabricationplants
Chlorine-basedswimmingpoolchemicals Beautyshops
Calciumchlorideusedforthawing Refrigerationrepairshops
Sodiumchlorideusedforwatersoftening Photoprocessingplants
Refrigerantleaks Autobodyshops
Paintorvarnishremovers Plasticmanufacturingplants
HydrochloricorMuriaticacid Furniturerenishingareasandestablishments
Cementsandglues Newbuildingconstruction
Antistaticfabricsoftenersusedinclothesdryers Remodelingareas
Chlorine-typebleaches,laundrydetergents,andcleaningsolvents Garagesandworkshops
Donotoperatethewaterheaterifitscombustionairintakeislocatedinornearoneoftheareasorinthevicinityofproductslistedin
Table.Theseareaswillalwayscontainhazardouscontaminatesthatcanformstrongacidswhilepassingthroughtheburnerandvent
system.Theseacidswillcorrodethewaterheater’sheatexchanger,burnercomponentsandventsystem,resultinginuegasspillage
and/orwaterleakage,possiblesubstantialpropertydamage,severepersonalinjury,ordeath.Ifthewaterheatercombustionairintake
islocatedinanyarealikelytocauseorcontaincontamination,orifproductswhichwouldcontaminatetheaircannotberemoved,the
intakemustbere-pipedandterminatedtoanotherlocation.
WARNING
DANGER
Safety Precautions
7
Before Operation
Chapter2.–SafetyRegulations
CAUTION
1.Checkthegasbeingused.
When the Water Heater is used or moved for the rst time, user
must check whether the type of gas being supplied matches the
specic gas type for the appliance.
The type of gas is indicated on the rating plate on side of the
water heater.
3.Checkthegasvalve.
Please conrm the gas valve connected to the water heater
(it must be closed during installation)
4.Checkthewatersupplyvalve.
Please leave the appliance water supply valve open at all times
(it must be closed during installation)
120V/60Hz
open
Before Operation
2.Checktheelectricitybeingsupplied.
Please check whether the appliance is connected properly.
8
Before Operation
Chapter2.–SafetyRegulations
WARNING
Donotstoreammablematerialintheappliance
room.
Do not store portable gas container, thinner, oil, or other
ammable materials in the room. Otherwise, re may break out.
Donotplacecombustibleitems,suchasnewspapers
orlaundry,neartheapplianceorventingpipe.
Do not store combustible (inammable) materials such as
papers. Do not hang clothes on the exhaust vent. Otherwise,
re may break out.
CAUTION
Pulloutthepowerplugfromthereceptacleiflight-
ningstrikes.
Lightning can damage the water heater. Pull out power cord
plug if lightning strikes for your safety.
BurnProtection
Be cautious when opening the hot water tap. The water may
be very hot. Especially, children, disable and elderly are at the
highest risk of being scalded. (Freeze protection is unavailable
if the unit is unplugged from power.)
Before Operation
9
When in Operation
Chapter2.–SafetyRegulations
Afterrepairofgaspipelineorgasregulatorreplace-
ment,callserviceagentforinspectionbeforestart-
ingitup.
Ventilationduringgasleakage
If exhaust gas enters room, it could cause poisoning by carbon
monoxide. Check if the exhaust pipe is connected properly.
Open windows for ventilation at appropriate intervals.
Whattodoifyousmellgas
1. Do not try to light any appliance.
2. Do not touch any electrical switch; do not use any phone in
your building.
3. Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
4. If you cannot reach your gas supplier, call the re
department.
Gasleakagetest
Gas supply line must be inspected regularly.
(If air bubbles appear in soap water test, the gas is leaking
out. Close the gas supply valve and call your gas supplier for
inspection)
Incaseswherethepipesarefrozen
Thaw the water supply pipeline or hot water discharge line with
hair dryer or other electric heating device. If it does not work,
Contact the installer or Service agent for assistance.
When in Operation
10
DonotdisassembletheWaterHeater.
Service must be performed by a qualied intaller, service
agency and gas supplier. Otherwise, Warranty will be voided.
BurnProtection
Do not touch the exhaust vent or hot water line during operation
since they are very hot. Otherwise, the user may get burned.
When in Operation
Chapter2.–SafetyRegulations
DonotshutofftheWaterHeater.
When you leave home for a long time, do not shut off the Water
Heater. The Water Heater has a freeze protection function.
The freeze protection feature will not work if electrical power,
gas, or water is disconnected.
Donotwipetheapplianceorcontrolpanelwithwet
cloth.
Otherwise, electric shock may occur, or internal parts may be
deteriorated or failed due to the inltration of moisture.
CAUTION
When in Operation
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