Noritz NR98-DVC Installation Manual
Tankless gas water heater
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Also See for NR98-DVC:
- Service manual (96 pages) ,
- Installation manual (42 pages) ,
- Owner's manual (32 pages)
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Installation Manual
TANKLESS GAS WATER HEATER
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.
DANGER
WARNING
CAUTION
WARNING:
If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Prohibited
Requests to Installers
• In order to use the water heater safely, read this installation manual carefully, and follow the
installation 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 fill in all of the required
items on the warranty and to hand the warranty to the customer along with the Owner's Guide.
CERTIFIED
R
Department of Buildings
SBA8350
Rev. 09/09
NR98-DVC
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.
Disconnect
Power
CAUTION
Low NOx
Approved by
SCAQMD
Accepted For Use
City of New York
MEA 19-03-E
(Indoor Installation)
Ground
FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFAC-
TURED HOME 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 In-
stallation Code (NSCNGPIC).
When applicable, installation must conform with the Manufac-
tured 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 specifications of its products without notice.
NORITZ AMERICA
CORPORATION
Be sure to do
*SBA8350*
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Summary of Contents for Noritz NR98-DVC
- Page 1 3280 or the Canadian Standard CAN/CSA-Z240 MH Mobile SCAQMD Homes, Series M86. Noritz America reserves the right to discontinue, or change at any Accepted For Use time, the designs and/or specifications of its products without notice. City of New York...
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Page 2: Included Accessories
The following accessories are included with the unit. Included Accessories Check for any missing items before starting installation. Part Shape Part Shape Q’ty Q’ty Owner's Guide, Warranty, Tapping Screw Installation Manual each (this document) The accessories listed below are not Optional Accessories included with the units, but may be necessary for installation. -
Page 3: Quick Connect Multi System Installation
Quick Connect Multi System Installation • The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord. The Quick Connect Cord is 6 ft. long. Install the units 2-18" apart from each other to ensure the cord will be able to reach between the units. -
Page 4: Before Installation
WARNING Precautions on Vent Pipe • This appliance requires the use of special concentric type vent pipe specified by Noritz America. Do not attempt to use materials that are not specified for use on this appliance. Improper venting may result in a fire, property damage, or exposure to Carbon Monoxide. -
Page 5: Choosing Installation Site
Choosing Installation Site * Locate the appliance in an area where leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. - Page 6 Contact local utilities for code requirements in your area or call: 1-866-766-7489 and request instructions. The Commonwealth of Massachusetts: The water heater can be used for hot water only and not in a combination of domestic and space heating. For Venting Manufacturers Requirements, see websites or phone numbers listed below: Noritz N-Vent www.noritz.com...
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Page 7: Installation Clearances
Installation Clearances WARNING Before installing, check for the following: Install in accordance with relevant building and mechanical codes, as well as any local, state or national regulations, or in the absence of local and state codes, to the National Fuel Gas Code ANSI Z223.1/NFPA 54 –... -
Page 8: Securing To The Wall
Clearance Requirements from Vent Terminations to Building Openings * All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with NSCNGPIC. Vent Terminal Area Where Terminal is Not Permitted Air Supply Inlet Clearance Above grade, veranda, porch, deck,... - Page 9 • The weight of the device will be applied to the wall. If the strength of the wall is not suffi- cient, reinforcement must be done to prevent the transfer of vibration. • Do not drop or apply unnecessary force to the device when installing. Internal parts may be damaged and may become highly dangerous.
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Page 10: Vent Pipe Installation
Z233.1/NFPA 54 – latest edition, and in Canada, in accordance with NSCNGPI. • This appliance requires the use of special concentric type vent pipe specified by Noritz America. Do not attempt to use materials that are not specified for use on this appliance. - Page 11 Maximum Vent Length Adjustment Connector The unit can be adjusted to accommodate longer vent runs; refer to the below table to find the maximum vent length based on the number of elbows. If the maximum vent length falls in the shaded area of the table, the airflow adjustment connector must be pulled out as illustrated to the right.
- Page 12 • Make the vertical pipe as short as possible. way to the end. • Do not common vent or connect more than one • Noritz Concentric vent pipe is approved for use appliance to this venting system. on this appliance with zero clearance to com- •...
- Page 13 Vertical Vent Termination 5' or more • Terminate at least 6' from the combustion air intake of any appliance, and 3' from any Rain other building opening, gas utility meter, service regulator etc. Air Intake • Enclose exterior vent systems below the roof Pipe line to limit condensation and protect against Roof Flashing...
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Page 14: Gas Piping
Instructions Sample Gas Line 1. Size each outlet branch starting from the furthest Noritz Tankless Gas Water Heater using the Btuh required and the length from the Barbecue (199,900 Btuh) meter. (50,000 Btuh) Outlet E 2. - Page 15 Gas Line Sizing for a Noritz Tankless Gas Water Heater Adapted from UPC 1997 Maximum Natur Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop) Length in Feet Pipe 100' 125' Size 1/2"...
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Page 16: Water Piping
Installation and service must be performed by a qualified plumber. In the Water Piping Commonwealth of Massachusetts, this product must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2.00 and 5.00. Observe all applicable codes. This appliance is suitable for potable water and space heating applications. - Page 17 Supply water piping Hot water piping • Do not use PVC, iron, or any piping which has been • Do not use lead, PVC, iron or any piping which treated with chromates, boiler seal or other chemicals. has been treated with chromates, boiler seal or •...
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Page 18: Water Treatment
Noritz Scale Shield, that reduce the amount of scale deposits. Refer to the below tables for sug- gested treatment and maintenance measures to be taken based on the water hardness level. Damage to the water heater as a result of water in excess of 12 gpg (200 mg/L) of hardness is not covered by the Noritz America Limited Warranty. -
Page 19: Plumbing Applications
(Model L6006A or L6006C) Combination Potable Water and Space Heating System Notes: 1. Noritz recommends the use of an Isolation Kit with the installation. These kits include an integrated shut-off and serv- ice valve with unions and a pressure relief valve. -
Page 20: Electrical Wiring
Consult a qualified electrician Electrical Wiring for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. Disconnect Power 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. -
Page 21: Operation Panel
To keep the water heater off, let the unit sit for 30 sec. to return to the original display. • The NR98-DVC can be programmed so that it will default to one of four temperatures if the remote control- ler is removed (180, 140, 130, 120 F). To change the default temperature, connect the temperature selection wire as shown in the above diagram. -
Page 22: Pump Wiring
* This feature is not available when using the Quick Con- Pump Wiring nect Multi System feature. Connecting the pump control wire 1. Leave enough slack so that the pump control wires will stay connected if the unit is removed Pump Control from the wall. - Page 23 For Quick Connect Multi System Installation Connecting Quick Connect Cord usa a Quick Connect Cord (sold separately). Caution The wire coloring on the Quick Connect Cord will not be the same as the wire coloring of the connection plug inside the unit. 1.Red 1.Red 1.White...
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Page 24: Maintenance
Periodically check the following to ensure proper Maintenance operation of the water heater. • The venting system must be examined periodically by a qualified service technician to check for any leaks or corrosion. • The burner flame must be checked periodically for a proper blue color and consistency. •... -
Page 25: Lighting Instructions
CAUTION Handling after trial operation • If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of the water out of the unit and the plumbing system to prevent the unit and system from freezing, and bleed the gas out of the gas line. - Page 26 Dimensions NR98-DVC < mm [inch] > 13.2" 8 - 0.2" x 0.4" OBLONG HOLE 6 - 0.5" 5.5" 4.1" 2.8" 13.8" 0.4" - 1.8" 10.2" 1.4" 13.1" FLUE COLLAR 4.1" 5.0" 3.1" 1.1" AIR INLET CONDENSATE DRAIN 0.4" - 1.8"...
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