John Wood NR98-DVC User Manual

Installation Manual

NORITZ AMERICA
CORPORATION

Canada

TANKLESS GAS WATER HEATER

N-0751M-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.

WARNING

CAUTION

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.

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

Disconnect
Power

Ground

Be sure to do

CAUTION

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.

SAV8017-1

Rev. 10/08

CERTIFIED

R

Low NOx

Approved by

SCAQMD

Accepted For Use

City of New York

Department of Buildings

MEA 19-03-E

FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFAC­TURED HOME APPLICATIONS.

Installation must conform with local codes, or in the absence of
local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54­latest 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 specifications of its products without notice.

*SAV8017 C*

1.

Included Accessories

The following accessories are included with the unit.
Check for any missing items before starting installation.

Part Shape Q’ty

Tapping Screw

2.

Optional Accessories

Quick Connect

Cord

Isolation Valves

(includes pressure

relief valve)

Part Shape

Part Shape

5

1

1

Owner's Guide, Warranty,

Installation Manual

(this document)

The accessories listed below are not
included with the units, but may be necessary
for installation.

Pipe Cover

(PC-5S)

Part Shape

Part Shape

Q’tyShapePart

1

each

Q’tyShapePartPart Shape Q’ty

1

Straight

Adjustable

90 Elbow

45 Elbow

Adjustable

90 Elbow

Straight

Termination

Flange

Adapter

Support

Strap

Plate

Drain Tee

Horizontal

Termination

Flange

Elbow

Rain Cap

Roof

Flashing

(Cap)

Roof

Flashing

(Adapter A)

Standard

Kit

Air Intake

pipe

Roof

Flashing

(Base)

Roof

Flashing

(Adapter B)

2

3.

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 2m (6'). long. Install the units 50 - 450mm (2-18") apart from each
other to ensure the cord will be able to reach between the units. (See Typical Plumbing diagram).
(If the distance between the two units is too great, not only will the cord not be able to reach,
but the water temperature may also become unstable because of the difference in pipe length
between the two units).

System Diagram

Quick Connect
Cord

Cord
Connector

Typical Plumbing

* When connecting two units, disconnect

the remote controller connector from the
other unit.

Cord
Connector

Note: Connect the remote

controller to only one
of the units.

Remote Controller

*1

Gas Supply Piping

G

Distance at center:

406 - 812mm (16-32").

Distance on sides

50 - 450mm

(2-18").

Cold Water Supply

Hot Water

Union

Union

Gas Valve

Shutoff Valve

Shutoff
Valve

Hot Water

Cold Water

Size the piping to allow for the maximum
flow rates of the units.

Make this distance as short as possible.
* The hot water temperature will
become unstable as the pipe
length increases.

Union

Quick Connect
Cord

Pressure
Relief
Valve

Shutoff
Valve

Leave enough clearance around the plumbing
to apply insulation. It will be necessary to add
bends to the piping to ensure that this
clearance is available.

• Insulate the hot water piping to prevent heat loss. Insulate and apply heating materials to the cold
water supply piping to prevent heat loss and freezing of pipes when exposed to excessively cold
temperatures.

3

Before Installation

4.

DANGER

Checkup

• Check the fixing brackets and vent pipe yearly for damage or wear. Replace if necessary.

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.

Snow Precaution

• If this product will be installed in an area where snow is known to accumulate, protect the vent
termination from blockage by snow drifts or damage from snow falling off of roofs.

Check the Gas

• Check that the rating plate indicates the
correct type of gas.

• Check that the gas supply line is sized for
199,900 Btuh for this unit.

Check the Power

• The power supply required is 120VAC, at 60Hz.
May result in fire or electric shock.

10.3a-2007

N-0751M-DVC

199,900 BTU

11,000 BTU

4.3a-2007

199,900

168,000

202

0.65 3.1"

15

750

4.0

10.5"

150

2

192,800

162,000

Use Extreme 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 output temperatures do

not get to scalding levels. Do not use a solar pre-heater with the quick-connect multi-system.

CAUTION

Do Not Use Equipment for Purposes Other Than Those Specified

• Do not use for other than increasing the temperature of the water supply, as unexpected accidents
may occur as a result.

Check Water Supply Quality

• If the water supply is in excess of 12 grains per gallon (200 mg/L) of hardness, acidic or otherwise
impure, treat the water with approved methods in order to ensure full warranty coverage.

4

Choosing Installation Site

5.

* 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. The pan must not restrict combustion air flow.

DANGER

• Locate the vent terminal so that there are no obstacles around the termination and so that ex­haust can't accumulate. Do not enclose the termination with corrugated metal or other materials.

WARNING

• Avoid places where fires are common, such as those where gasoline,
benzene and adhesives are handled, or places in which corrosive gases
(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.
Using the incorrect voltage may result in fire or cracking.

• Avoid installation in places where dust or debris will accumulate.

Dust may block the air-supply opening, causing the performance of the
device fan to drop and incomplete combustion to occur as a result.

Prohibited

• 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. Do not install this water heater in a
recreational vehicle or on a boat.

CAUTION

• The water heater is designed for indoor installation only. Never install it
outdoors or in a bathroom, it may be damaged or a fire may be caused.

• Consult with the customer concerning the location of installation.

• Install the water heater in an area that allows for the proper clearances
to combustible and noncombustible construction. Consult the rating
plate on the appliance for proper clearances.

• Do not install the water heater in a place where it may be threatened by
falling objects, such as under shelves.

• The water heater must be installed in a place where supply and exhaust
pipes can be installed as directed.

• Do not install the water heater where the exhaust will blow on outer
walls or material not resistant to heat. Also consider the surrounding
trees and animals.

The heat and moisture from the water heater may cause discoloration of
walls and resinous materials, or corrosion of aluminum materials.

Prohibited

5

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
entering in the equipment.

• Install in a location where the exhaust gas flow will not be
affected by fans or range hoods.

• Take care that noise and exhaust gas will not affect neighbors.

Prohibited

• Before installing, make sure that the exhaust flue termination will
have the proper clearances according to the National Fuel Gas
Code (ANSI Z223.1).

State of California: The water heater must be braced, anchored or strapped to avoid moving during an
earthquake. Contact local utilities for code requirements in your area or call: 1-866-766-7489 and request
instructions.

The Commonwealth of Massachusetts: The water heaters can be used for domestic hot water or space
heating systems, 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

Be sure to do

Prohibited

6

6. 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 – latest edition. In Canada, see NSCNGPIC for detailed requirements.

Item

• Maintain the following clearances
from both combustible and
non-combustible materials.

Distance from combustibles

• If possible, leave 200mm (8") or more on
either side of the unit to facilitate inspection.

• If possible, leave 600mm (24") or more
in front of the unit to facilitate maintenance
and service if necessary.

• If possible, leave 75mm (3") or more
above and below the vent pipe to facilitate

repair/inspection

inspection and repair if necessary.

Securing of space for

Check Illustration

50mm (2")
or more

Distance from
the side

200mm
(8") or
more

600mm
(24") or
more

300mm (12")
or more

100mm (4")
or more

75mm (3") or more

75mm (3") or more

200mm
(8") or
more

• There must be a clearance of 600mm
(24") or more in front of the Flue terminal.

• This restriction will not be applied to an
area where an effective shield makes a
clearance of 600mm (24") or more in
front of the exhaust outlet.

into Any Building

Outdoor Clearances to Opening

There must be no
building opening
within this area.

300mm
(12") or
more

300mm
(12") or
more

300mm (12")
or more

Flue terminal

300mm (12")
or more

7

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.

Clearance

Above grade, veranda, porch, deck,

A=

or balcony

Window or door that may be opened

B=

Permanently closed window

C=

Vertical clearance to ventilated soffit
located above the terminal within a

D=

horizontal distance of 0.6m (2') from
the center of the terminal

Unventilated soffit

E=

Outside corner

F=

Inside corner

G=

Each side of center line extended

H=

above meter/regulator assembly
Service regulator vent outlet

I=

Nonmechanical air supply inlet or

J=

combustion air inlet to any other
appliance

Mechanical air supply inlet

K=

Above paved sidewalk or paved

L=

driveway located on public property
Under veranda, porch, deck, or

M=

balcony

Vent Terminal

Air Supply Inlet

300mm (12") [300mm (12")]

300mm (12") [900mm (36")]

*

*

*
*
*

0.9m (3') within a height 4.5m (15')
above meter/regulator assembly

0.9m (3')

300mm (12") [900mm (36")]

0.9m (3') above if within
3m (10') [1.8m (6')]

[2.1m *** (7' ***)]

*[300mm (12") - Canada Only****]

Area Where Terminal
is Not Permitted

[ ]= indicates clearances required in Canada
* Maintain 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 two
single family dwellings and serves both dwellings.
**** Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor.

7. Installation

Securing to the wall

8