Noritz NR83-DVC Installation Manual
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Noritz NR83-DVC Installation Manual

Tankless gas water heater
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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 fi re 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 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 fi ll in all of the required
items on the warranty and to hand the warranty to the customer along with the Owner's Guide.
SBA8444
Rev. 05/10
NR83-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
Low NOx
Approved by
SCAQMD
(Indoor Installation)
Ground
CAUTION
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
Installation 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 specifi cations of its products without notice.
NORITZ AMERICA
CORPORATION
Be sure to do
*SBA8444*

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Summary of Contents for Noritz NR83-DVC

  • Page 1: Installation Manual

    Installation Manual NORITZ AMERICA CORPORATION TANKLESS GAS WATER HEATER NR83-DVC (Indoor Installation) 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 indicates an imminently hazardous situation which, DANGER if not avoided, will result in death or serious injury.

  • Page 2: Included Accessories

    The following accessories are included with the unit. Included Accessories Check for any missing items before starting installation. Q’ty Q’ty Part Shape Part Shape 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' (2m) long. Install the units 2-18" (50-450mm) apart from each other to ensure the cord will be able to reach between the units.

  • Page 4: Before Installation

    Check the Gas • Check that the rating plate indicates the correct type of gas. NR83-DVC NR83-DVC 180,000 BTU 180,000 BTU • Check that the gas supply line is sized for...

  • 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 fl oors of the structure. When such locations can- not be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance.
  • Page 6 CAUTION • Avoid installation above gas ranges or stoves. • Avoid installation between the kitchen fan and stove. If oily fumes or a large amount of steam are present in the installation location, take measures to prevent the fumes and steam from Prohibited entering in the equipment.

  • 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.

  • Page 10: Vent Pipe Installation

    Vent Pipe Installation WARNING CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSI Be sure to do Z233.1/NFPA 54 –...
  • Page 11 Maximum Vent Length Adjustment Dip Switches The unit can be adjusted to accommodate longer vent runs; refer to the below table to fi nd the maximum vent length based on the number of elbows. Adjust the dip switches according to the vent condition noted in the tables below.
  • Page 12 • Exceeding the maximum vent length is danger- • Connect the vent pipe fi rmly so that it will pre- ous and may result in bad combustion. vent exhaust gases from leaking. • Install the vent terminal so that all exhaust is di- •...
  • Page 13 Vertical Vent Termination 5' (1.5m) or more • Terminate at least 6' (1.8m) from the combus- tion air intake of any appliance, and 3' (0.9m) Rain from any other building opening, gas utility me- ter, service regulator etc. Air Intake •...

  • Page 14: Gas Piping

    Gas Piping Follow the instructions from the gas supplier. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of ⁄ psig (3.5 kPa). The Appliance must be isolated from the gas supply piping system by closing its individual manual shut- off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than...
  • Page 15 Gas Line Sizing for a Noritz Tankless Gas Water Heater Adapted from UPC 1997 Maximum Natural Gas Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop) Length in Feet Pipe 10' (3m) 20' (6m) 30' (9m) 40' (12m) 50' (15m) 60' (18m) 70' (21m) 80' (24m) 90' (27m) 100' (30m) 125' (37.5m) Size 1/2"...

  • Page 16: Water Piping

    Installation and service must be performed by a qualifi ed plumber. In the Commonwealth of Massachusetts, this product must be installed by a licensed Water Piping plumber or gas fi tter 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 •...

  • Page 18: Water Treatment

    Water Treatment This water heater is equipped with an optional automatic service reminder function to alert the user when fl ushing or a cartridge/fi lter change is required. Once activated, the unit will display an "05" error code on the remote controller when maintenance is due. The service interval can be set for either 6, 12, or 24 months;...

  • Page 19: Water Treatment System

    Water Treatment If this water heater will be installed in an application where the supply water is hard, the water must be treated with either the Noritz H2Flow or ScaleShield or a water softener. Refer to the below tables for suggested treatment and maintenance measures to be taken based on the water hardness level.

  • Page 20: Plumbing Applications

    Plumbing Applications Recirculation System Notes: 1. Size the pump to provide a maximum of 2 GPM (7.5 L/min.) through the system at 10 ft (3m) of head plus piping losses. Hot Water Return Adjust the flow using a globe valve and verify the NORITZ Cold Water Supply flow rate with the maintenance monitors.

  • Page 21: Electrical Wiring

    Consult a qualifi ed 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 22 Changing Other Features Adjusting the Temperature Display Note: The setting must be done within the fi rst 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item No. Item Choices (factory defaults shaded) Celsius/Fahrenheit °F (Fahrenheit) °C (Celsius) display mode.

  • Page 23: Operation Panel

    To keep the water heater off, let the unit sit for 30 sec. to return to the original display. • The NR83-DVC can be programmed so that it will default to one of three temperatures if the remote controller is removed (140, 130, 120 °F (60, 55, 50 °C). To change the default temperature, adjust the dip switches as described below.

  • Page 24: Pump Wiring

    * This feature is not available when using the Quick Pump Wiring Connect 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 from the Pump Control wall.

  • Page 25: Connecting Quick Connect Cord

    For Quick Connect Multi System Installation Connecting Quick Connect Cord-2 use part #QC-2 only. (sold separately). Caution The wire coloring on the Quick Connect Cord-2 will not be the same as the wire coloring of the connection plug inside the unit. 1.Red 1.Red 1.White...

  • Page 26: Maintenance

    Periodically check the following to ensure proper Maintenance operation of the water heater. • The venting system must be examined periodically by a qualifi ed service technician to check for any leaks or corrosion. • The burner fl ame must be checked periodically for a proper blue color and consistency. •...

  • Page 27: 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 freez- ing, and bleed the gas out of the gas line.
  • Page 28 Dimensions NR83-DVC <inch(mm)> 13.2" (336mm) 9.4" (240mm) 0.4" - 1.8" (10 - 45mm) 6 - 0.2" x 0.4" (6 x10mm) OBLONG HOLE 4.8" (121mm) 1.1" (28mm) 5.5" (140mm) 13.8" (350mm) 3.9" (100mm) 13.1" (334mm) FLUE COLLAR 2.8" 70mm) Ø5.0" (Ø127mm) AIR INLET 1.4"...

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