Noritz N-0631S Installation Manual
Noritz N-0631S Installation Manual

Noritz N-0631S 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 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
Low NOx
Approved by
SCAQMD
SAR8584
Rev. 11/06
N-0631S
(Indoor/Outdoor Installation)
N-0631S-OD
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
Installation must conform with local codes, or in the absence of local
codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54- latest edi-
tion and/or CSA B149.1, Natural Gas and Propane Installation Code
(NSCNGPIC).
Noritz America reserves the right to discontinue, or change at any time,
the designs and/or specifications of its products without notice.
(Outdoor Installation)
Ground
NORITZ AMERICA
CORPORATION
Be sure to do
*SAR8584 C*

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Summary of Contents for Noritz N-0631S

  • Page 1: Installation Manual

    National Fuel Gas Code, ANSI Z223.1/NFPA 54- latest edi- tion and/or CSA B149.1, Natural Gas and Propane Installation Code CERTIFIED (NSCNGPIC). Noritz America reserves the right to discontinue, or change at any time, Low NOx the designs and/or specifications of its products without notice. Approved by...
  • Page 2: Included Accessories

    Part Shape Part Shape Q’ty Q’ty Cross Recess Tapping Screw Head Screw (N-0631S only) (N-0631S-OD only) Owner's Guide, Warranty, 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: Before Installation

    Checkup • Check the fixing brackets and vent pipe yearly for damage or wear. Replace if necessary. WARNING Check the Gas • Check that the rating plate indicates the N-0631S N-0631S correct type of gas. 180,000 BTU 180,000 BTU 25,000 BTU 25,000 BTU •...
  • Page 4: Choosing Installation Site

    Do not enclose the termination with corrugated metal or other materials. • Model N-0631S-OD is for outdoor installation only. Never install it indoors. Do not enclose the termination with corrugated metal or other materials. This will cause carbon monoxide poisoning and a potential fire hazard.
  • Page 5 • Avoid installation above gas ranges or stoves. (N-0631S only) • 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 6: Installation Clearances

    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 – latest edition. In Canada, see NSCNGPIC for detailed requirements. [ For N-0631S ] Item Check Illustration •...
  • Page 7 [ For N-0631S-OD ] Illustration Item Check • Maintain the following clearance from both combustible and non-combustible materials. 24" (12") * ( ) indicates the distance when installing a heat insulat- or more ing board (incombustible material other than metal, with thickness of 0.1"...
  • Page 8 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 Indoor Installation Outdoor Installation...
  • Page 9 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. [ For N-0631S ] Maintain the following clearances to any Illustration opening in any building: •...
  • Page 10 [ For N-0631S-OD ] Maintain the following clearances to any Illustration opening in any building: • 1' below, 1' horizontally from, or 1' above any door, operable window, or gravity air inlet into any building. 3' above any forced air inlet within 10'.
  • Page 11: Installation

    Installation Securing to the wall • 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 12: Vent Pipe Installation

    Vent Pipe Installation ( N-0631S Only, Indoor 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 13 Adapter* gravity air inlet into any building per National Fuel Gas Code ANSI Z223.1/NFPA 54. * Adapter not required when using Noritz N-Vent. • Slope the horizontal vent 1/4" downwards for every 12". **1' minimum recommended, but not required. Avoid installing elbow directly on flue.
  • Page 14 Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1 and Combustion Air in Canada, in accordance with NSCNGPIC. • Provide two permanent openings to allow circulation of combustion air. 9" • Make each opening 180 square inches if they 20"...
  • Page 15: Gas Piping

    Instructions Sample Gas Line 1. Size each outlet branch starting from the furthest Noritz Gas Water Heater using the Btuh required and the length from the Barbecue (180,000 Btuh) meter. (50,000 Btuh) Outlet E 2.
  • Page 16 Gas Line Sizing for a Noritz 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 Size 100' 125' 1/2" 3/4"...
  • Page 17: 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 suitable for potable water and space heating applications.
  • Page 18: Plumbing Applications

    Temp. & Applications: Expansion Please contact Press. Gauge Tank (Optional) Noritz for (Install According compatibility. to Local Codes) Drain Shutoff Hot Water * Size the pump to provide at least 1.58 GPM through the system at 10 Ft of Head plus...
  • Page 19: 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 20: Remote Controller

    Install the remote controller according to the instructions in the Installation Guide (p. 25). • The N-0631S can be programmed so that it will default to one of three temperatures (140, 130, 120°F) when the temperature selection wire is not connected. To change the default temperature, connect the temperature selection wire as shown in the below diagram.
  • Page 21: Connecting Remote Controller Cord To Unit

    Connecting Remote Controller Cord to Unit • Keep the remote controller cord away from the freeze prevention heaters in the unit. • Tie the redundant cord outside the water heater. Do not put the extra length inside the equipment. • The remote controller cord can be extended up to 300' with 18AWG wire. •...
  • Page 22: 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 23: Lighting Instructions

    WARNING A fire or explosion may result if these instructions are not followed, which may cause lose of life, personal injury or property damage. Lighting Instructions This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner.
  • Page 24 Dimensions N-0631S (VIEW FROM TOP) 10.5" 7.1" 6.2" 13.3" 1.4" GAS INLET (3/4") HOT WATER OUTLET(3/4") 13.8" 1.6" WIRING THROUGHWAYS COLD WATER INLET(3/4") 13.1" FLUE COLLAR 0.4" 6.7" 4.0" 3.0" 4.7" 3.2" UPPER WALL MOUNT BRACKETS 1.2" AIR INLET 4.7"...
  • Page 25 Remote Controller RC-7649M carefully before carrying out installation. Installation Guide NORITZ AMERICA CORPORATION Note Do not connect power to the water heater before the remote controller has been properly installed. Recommended installation location of the remote controller is in a bathroom.
  • Page 26 Installation 1. Apply Wall Packing to the rear side of the 3. Remove the cover of the remote control, remote controller. mark the location of the screw holes, and 2. Connect the remote controller wires to the drill holes for the wall anchors. separate remote controller cord.
  • Page 27: Installing The Remote Controller Outdoor Junction Box

    Installing the Remote Controller Outdoor Junction Box 5. Slide the box nut over the remote controller 1. Insert the remote controller wires through the wires and screw it onto the wall pipe. wall pipe and secure the wall pipe to the remote controller.

This manual is also suitable for:

N-0631s-od

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