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Potential dangers from accidents during installation and use are divided into the following three 
categories. Closely observe these warnings, they are critical to your safety.

Prohibited

Disconnect
Power

Ground

Be sure to do

WARNING:

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

causing property damage, personal injury or death.

NORITZ AMERICA 
CORPORATION

 Installation Manual

CONDENSING TANKLESS GAS WATER HEATER

                                NRC98-DV

                                                               

 (Indoor Installation)

                                NRC83-DV

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.

DANGER

WARNING

CAUTION

SBA8834

Rev. 08/11

Requests to Installers

•  In order to use the water heater safely, read this installation manual carefully, and follow the in-

stallation instructions.

•  Failures and damage caused by erroneous work or work not as instructed in this manual are not 

covered by the warranty.

•  Check that the installation was done properly in accordance with this Installation Manual upon completion.
•  After completing installation, please either place this Installation Manual in a plastic pouch and 

attach it to the side of the water heater (or the inside of the pipe cover or recess box if applicable), 
or hand it to the customer to retain for future reference.  Also, be sure to  ll in all of the required 
items on the warranty and to hand the warranty to the customer along with the Owner's Guide.

CAUTION

F O R  U S E  I N  R E S I D E N T I A L  O R  M A N U FA C T U R E D  H O M E  
APPLICATIONS.
Installation must conform with local codes, or in the absence of local codes, 
the National Fuel Gas Code, ANSI Z223.1/NFPA 54- latest edition and/or 
CSA B149.1, Natural Gas and Propane Installation Code (NSCNGPIC).
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.

Low NOx 

Approved by 

SCAQMD

CERTIFIED

R

*SBA8834*

Summary of Contents for NRC83-DV

Page 1: ...d by erroneous work or work not as instructed in this manual are not covered by the warranty Check that the installation was done properly in accordance with this Installation Manual upon completion A...

Page 2: ...lation Q ty Shape Part Part Shape Q ty Remote Controller Cord 26ft 8m Quick Connect Cord QC 2 1 1 1 each Isolation Valves includes pressure relief valve Owner s Guide Warranty Installation Manual this...

Page 3: ...e The hot water temperature will become unstable as the pipe length increases Distance at center 20 3 36 3 in 515 922mm Quick Connect Cord Union Gas Valve Union Shutoff Valve Shutoff Valve Hot Water S...

Page 4: ...Caution if Using With a Solar Pre Heater Using this unit with a solar pre heater can lead to unpredictable output temperatures and possibly scalding If absolutely necessary use mixing valves to ensure...

Page 5: ...result Avoid installation in places where special chemical agents e g hair spray or spray detergent are used Ignition failures and malfunction may occur as a result Carbon Monoxide Poisoning Hazard D...

Page 6: ...nal noises while it is running Before installing make sure that the exhaust ue termination will have the proper clearances according to the National Fuel Gas Code ANSI Z223 1 State of California The w...

Page 7: ...the unit to facilitate maintenance and service if necessary If possible leave 3 75mm or more above and below the vent pipe to facilitate inspection and repair if necessary Securing of space for repai...

Page 8: ...Illustration Outdoor Clearances to Opening into Any Building 12 300mm or more 12 300mm or more There must be no building opening within this area Flue terminal 12 300mm or more 12 300mm or more Vent C...

Page 9: ...aintain clearances in accordance with local installation codes and the requirements of the gas supplier A vent shall not terminate directly above a sidewalk or paved driveway that is located between t...

Page 10: ...installing Internal parts may be damaged and may become highly dangerous Install the unit on a vertical wall and ensure that it is level Locating Screw Holes Mounting Structure When installing with ba...

Page 11: ...t accessory on the top of the appliance as illustrated below Or if the vent pipe has already been installed 2 After installing the drain pipe make sure that the area around the appliance is well venti...

Page 12: ...temperature in excess of 149 F 65 C and schedule 40 PVC pipe may be used as the vent material If required by local code schedule 40 or 80 CPVC may also be used on this appliance Refer to page 13 for a...

Page 13: ...for the location of the dip switch bank 0 3 6 9 12 15 18 21 24 27 30 32 35 38 41 44 47 50 53 56 62 0 00 0 90 1 80 2 70 3 60 4 50 5 40 6 30 7 20 8 10 9 00 9 90 10 80 11 70 12 60 13 50 14 40 15 30 16 20...

Page 14: ...practices must be observed o Squarely cut all pieces of pipe o Remove all burs and debris from joints and fittings o All joints must be properly cleaned primed and cemented Use only cement and primer...

Page 15: ...National Fuel Gas Code ANSI Z223 1 NFPA 54 Slope the horizontal vent 1 4 upwards for every 12 300mm toward the termination Use a condensation drain if necessary In the Commonwealth of Massachusetts a...

Page 16: ...s fuel equipment Please refer to Technical Bulletin TB 010606 for full installation in structions Slope vent Upwards 4 100mm pipe requires the use of a reducing coupling just prior to the termination...

Page 17: ...must be supplied from the outdoors as shown on pages 15 16 Terminate at least 6 1 8m from the combustion air intake of any appliance and 3 0 9m from any other building opening gas utility meter servi...

Page 18: ...a mechanical closet provide a 600mm 24 clearance in front of the unit to the door If combustion air will be provided through a duct size the duct to provide 60 cubic feet of fresh air per minute Supp...

Page 19: ...ee next page for the pipe capacity charts Noritz Condensing Tankless Gas Water Heater NRC98 DV 180 000 Btuh NRC83 DV 157 000 Btuh Clothes Dryer 35 000 Btuh Barbecue 50 000 Btuh Gas Range Stove 65 000...

Page 20: ...32 252 511 787 1496 55 112 213 440 675 1260 Maximum Capacity of Flex TracPipe in Cubic Feet per Hour of Natural Gas 0 60 Specific Gravity 0 5 WC Pressure Drop Length in Feet Pipe Size 3 4 1 1 1 4 1 1...

Page 21: ...to supply potable water may not be connected to any heating system or components previ ously used with a nonpotable water heating appliance When water is required in one part of the system at a higher...

Page 22: ...eans to en sure that the supply water pressure to the inlet of the heater does not fall below 29 PSI when the maximum amount of water is being demand ed Also install a pressure meter on the inlet If t...

Page 23: ...een ON and OFF oF PRIORITY LED goes out on PRIORITY LED blinks 6 If 2D also needs to be changed repeat steps 4 and 5 7 To con rm the settings press the Setting Buttons and simultaneously for more than...

Page 24: ...Treatment Required Install Noritz Isolation Valves to allow for flushing Flushing is required if a water treatment device is not installed Suggested Suggested Install Noritz Isolation Valves to allow...

Page 25: ...Long runs or applications where the nearest drain is above the water heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 2 GPH from the water...

Page 26: ...CLEARANCE DO NOT ADD ANY VALVES DO NOT ADD ANY VALVES NORITZ Condensing Tankless Gas Water Heater NORITZ Condensing Tankless Gas Water Heater Note If the drain line becomes clogged or frozen condensa...

Page 27: ...the pump Set the Aquastat to 10 F 5 C below the set output temperature 4 Noritz recommends the use of an Isolation Kit with the installation These kits include an integrated shut off and serv ice valv...

Page 28: ...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...

Page 29: ...FF button on the remote controller To keep the water heater off let the unit sit for 30 sec to return to the original display The NRC98 DV NRC83 DV can be programmed so that it will default to one of...

Page 30: ...t the end of the remote controller cord to the terminal block 5 Replace the terminal block cover and install the screw previously removed in step 3 6 Reconnect electrical power to the water heater Ext...

Page 31: ...om a wall circuit to the pump 5 Replace the front cover Pump Wiring This feature is not available when using the Quick Connect Multi System feature Relay connection with larger pumps 85 W 1 Locate and...

Page 32: ...ling Cord Clamp Ground wire Connector Connector Connecting Quick Connect Cord 2 Caution For Quick Connect Multi System Installation use part QC 2 only sold separately Quick Connect Cord 2 Quick Connec...

Page 33: ...proper blue color and consistency If the ame does not appear normal the burner may need to be cleaned If the burner needs to be cleaned it must be performed by a quali ed service technician Do not ob...

Page 34: ...ower to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop a...

Page 35: ...00mm 2 8 70mm 1 4 36mm 6 7 170mm 5 5 140mm 3 9 100mm 2 8 70mm 1 4 36mm 1 6 40mm 2 4 61mm 5 5 140mm 9 4 240mm 1 1 28mm 26 2 665mm 23 1 586mm 0 4 10mm 4 0 5 13mm 6 0 24 x 0 4 6mm x 10mm OBLONG HOLE 0 4...

Page 36: ...on the Installation Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the con troller Avoid location...

Page 37: ...ord Phillips Roundhead Wood Screw Wall Anchor 3 Remove the cover of the remote control mark the location of the screw holes and drill holes for the wall anchors 4 Insert the wall anchors screw the rem...

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