Noritz N-0751M Manuel utilisateur

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

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.

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

causing property damage, personal injury or death.

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.

NORITZ AMERICA

CORPORATION

Installation Manual

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

CAUTION

WARNING

CAUTION

WS-06-9012-3

Rev. 04/08

Low NOx

Approved by

SCAQMD

CERTIFIED

N-0751M (Indoor/Outdoor Installation)

N-0751M-OD (Outdoor Installation)

TANKLESS GAS WATER HEATER

Canada

Included Accessories

The following accessories are included with the unit.

Check for any missing items before starting installation.

Q’tyShapePart

Tapping Screw

(N-0751M only)

each

Part Shape Q’ty

Remote Controller

(See p. 23)

Remote Controller

Cord (3m(10'))

Optional Accessories

The accessories listed below are not

included with the units, but may be necessary

for installation.

Outdoor Vent Cap

(VC4(-1))

Quick Connect Cord

Q’tyShapePartPart Shape Q’ty

Remote Controller

Cord (8m(26'))

Isolation Valves

(includes pressure

relief valve) Pipe Cover 1

[Outdoor installation only]

Remote Controller

Outdoor

Junction Box

Owner's Guide, Warranty,

Installation Manual

(this document)

Cross Recessed

Head Screw

(N-0751M-OD only)

Part Shape Q’ty

[ N-0751M only ]

Part Shape Q’ty

[ N-0751M-OD only ]

Recess Box

(RB-4)

Quick Connect

Cord

Remote Controller Cord Gas Supply Piping

Cold Water Supply

Hot Water

Remote Controller

Terminal Block

Cord

Connector Cord

Connector

Quick Connect Multi System Installation

• The Quick Connect Multi System allows the installation of two units together utilizing only the Quick

Connect Cord.

Typical Plumbing

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).

* When connecting two units, use only

a single remote controller.

Note: Connect the remote

controller to only one

of the units.

System Diagram

• 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.

Distance at center

400 - 800mm (16-32")

Distance on sides

50 - 450mm (2-18")

Union

Make this distance as short as possible.

* The hot water temperature will

become unstable as the pipe

length increases.

Quick Connect

cord

Union

Gas Valve

Union

Shutoff

Valve Shutoff Valve

Hot Water

Cold Water

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.

Pressure

Relief

Valve

Size the piping to allow for the maximum

flow rates of the units.

4. Before Installation

Checkup

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

DANGER

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.

WARNING

CAUTION

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.

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.

[For indoor installation only]

5. 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. The pan must not restrict combustion air flow.

• Install the exhaust vent 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.

• 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.

• 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

mobile home, recreation vehicle or on a boat.

Prohibited

DANGER

WARNING

Indoor

• Do not enclose the termination with corrugated

metal or other materials.

This will cause carbon monoxide

poisoning and a potential fire

hazard.

[For indoor installation only]

[For outdoor installation only]

[Indoor installation]

Prohibited

[Outdoor installation]

• 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.

• Before installing, make sure that the vent termination (or the vent

cap in an outdoor installation) will have the proper clearances

according to the National Fuel Gas Code (ANSI Z223.1).

Be sure to do

Prohibited

CAUTION

• Consult with the customer concerning the location of installation.

• 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.

• Install the water heater in a location where it is free from obstacles and stagnant air.

• Do not install the water heater near staircases or emergency exits.

•

Do not locate the vent termination directed towards a window or any

other structure which has glass or wired glass facing the termination.

•

Avoid installation where the unit will be exposed to excessive winds.

[For outdoor installation only]

[For indoor installation only]

• 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.

[For N-0751M only]

• Make sure that the location allows installation of the exhaust

vent as specified.

• For outdoor installation, use the outdoor vent cap.

If it is necessary to vent above the roof line in an outdoor

installation, also use the base of the vent cap for rain protection.

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:

1) The outdoor units (OD) can only be used if they are for summer use only.

2) 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

Protech FastNSeal & W2 www.protechinfo.com

HeatFab SafTVent www.heat-fab.com

Z-Flex Z-Vent www.z-flex.com

Flex-L StaR-34 1-800-561-1980

6. Installation Clearances

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

Required Clearances

From Heater

• Maintain the following clearance from

both combustible and non-combustible

materials.

Check Illustration

300mm (12") or more

(Indoor)

900mm (36") or more

(Outdoor)

100mm (4") or more

(Indoor)

600mm (24") or more

(Outdoor)

50mm (2")

or more (Indoor)

150mm (6") or more (Outdoor)

• 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 inspec-

tion and repair if necessary.

Securing of space for

repair/inspection

600mm

(24") or

200mm

(8") or

75mm (3") or more

• If the unit will be installed in the vicinity of a

permanent kitchen range or stove that has

the possibility of generating steam that

contains fats or oils, use a dividing plate or

other measure to ensure that the unit is not

exposed to air containing such impurities.

* The dividing plate should be of noncombust-

ible material of a width greater than the

water heater.

Exhaust hood

Range

Dividing plate Water

heater

Cooking Equipment

WARNING

[ For N-0751M ]

200mm

(8") or

75mm (3") or more

Item Check

• When installing the unit on a balcony, etc., secure an

evacuation route of 600mm (24") or more in width.

• Provide clearance of 600mm (24") or more in front of the

unit to facilitate inspection and repair. Do install the unit

such as the wall of the second floor where the unit is out

of reach.

•

When installing the unit in a common side corridor, provide

a clearance of 1175mm (47") or more in front of the unit.

• Set the bottom edge of the exhaust port about 2100mm

(84") from the corridor floor.

Handrail

common side

corridor

balcony, etc.

Handrail

about

2100mm (84")

• Maintain the following clearance from both combustible

and non-combustible materials.

* ( ) indicates the distance when installing a heat insulat-

ing board (incombustible material other than metal, with

thickness of 2.5mm (0.1") or more) or "section of build-

ing effectively finished with incombustible material."

Note, however, that combustion failure may occur to the

unit as exhaust gas reflects from the wall. Provide clear-

ance of 600mm (24") or more in the front of the unit to

facilitate inspection and repair.

600mm (24")

(300mm (12"))

or more

10mm

(

0.4")

or more

combustible

900mm

(36") or more

150mm

(6") or more

150mm

(6") or more

Surrounding the area of installation

600mm (24")

or more

1175mm (47")

or more

Required Clearances From Heater

combustible

[ For N-0751M -OD]

Vent Terminal

Clearance

A= Above grade, veranda, porch, deck,

or balcony

B= Window or door that may be opened

C= Permanently closed window

Vertical clearance to ventilated soffit

located above the terminal within a

horizontal distance of 0.6m

(

from

the center of the terminal

E= Unventilated soffit *

F= Outside corner *

G= Inside corner *

H= Each side of center line extended

above meter/regulator assembly

0.9m (3') within a height 4.5m (15')

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

above meter/regulator assembly

I= Service regulator vent outlet 0.9m (3')

J= Nonmechanical air supply inlet or

combustion air inlet to any other

appliance

1.2m (4') below or to the side of

opening, or 0.3m (1') above

opening [900mm (36")]

1.2m (4') below or to the side of

opening, or 0.3m (1') above

opening [900mm (36")]

K= Mechanical air supply inlet 0.9m (3') above if within

3m (10') [1.8m (6')]

0.9m (3') above if within

3m (10') [1.8m (6')]

L= Above paved sidewalk or paved

driveway located on public property

Under veranda, porch, deck, or

balcony

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

[ ]= 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.

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

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

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

0.9m (3')

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

Indoor Installation

(See p.10)

Outdoor Installation

(See p.10, 11)

Air Supply Inlet

Area Where Terminal

is Not Permitted

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 Clearances When Heater is In-

stalled Indoors

• 1.2m (4') below, 1.2m (4') horizontally from,

or 0.3m (1') above any door, operable win-

dow, or gravity air inlet into any building.

0.9m (3') above any forced air inlet within

3m (10').

Maintain the following clearances to any

opening in any building: Illustration

(Noritz vent cap)

• 0.3m (1') below, 0.3m (1') horizontally from,

or 0.3m (1') above any door, operable

window, or gravity air inlet into any building.

0.9m (3') above any forced air inlet within

3m (10').

Vent Clearances When Heater is In-

stalled Outdoors With a Vent Cap

* 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 Installations in Canada, clearances are as follows: To windows, doors, & gravity air inlets: 900mm (36").

To forced air inlets: 1.8m (6'). These clearance requirements hold true for all of the above situations: Indoor,

Outdoor w/vent cap.

0.9m (3')

0.3m (1')

1.2m (4')

0.3m (1') 0.3m (1')

0.9m (3')

0.3m (1')

Clearance Requirements from Vent Terminations to Building Openings

[ For N-0751M]

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