Noritz NR71-SV 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 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 ll 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 re or explosion may result

causing property damage, personal injury or death.

NORITZ AMERICA

CORPORATION

Installation Manual

TANKLESS GAS WATER HEATER

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

SBA8655

Rev. 12/10

NR71-SV, NR66-SV (Indoor/Outdoor Installation, For USA and Canada)

NR71-OD, NR66-OD (Outdoor Installation, For USA and Canada)

NR50-OD (Outdoor Installation, For USA only)

FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFACTURED HOME

APPLICATIONS. (-OD type only)

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 Manufactured Home

Construction and Safety Standard, Title 24 CFR, Part 3280 or the Cana-

dian Standard CAN/CSA-Z240 MH Mobile Homes, Series M86. (NR66-OD,

NR71-OD only)

Noritz America reserves the right to discontinue, or change at any time, the

designs and/or specications of its products without notice.

CERTIFIED

*SBA8655*

Included Accessories

The following accessories are included with the unit.

Check for any missing items before starting installation.

Q’ty

ShapePart

each

Part Shape Q’ty

Remote Controller*

(See p. 22)

Remote Controller

Cord (10ft)

Optional Accessories

The accessories listed below are not

included with the units, but may be necessary

for installation.

Q’ty

ShapePartPart Shape Q’ty

Remote Controller

Cord (26ft)

Isolation Valves

(includes pressure

relief valve)

Pipe Cover (PC-1S) 1

Cross Recess

Head Screw

(-OD type only)

Owner's Guide, Warranty,

Installation Manual

(this document)

Recess Box

RB-600

(NR71-OD only)

RB-500

(NR66-OD,

NR50-OD only)

Remote Controller

Outdoor

Junction Box

Power Cord

(-SV type only)

* The remote controller is recommended to allow for additional temperature selections as well as for diagnostics.

Tapping Screw

(-SV type only)

Outdoor Vent Cap

VC4-1 (NR71-SV only)

VC3 (NR66-SV only)

Freeze Prevention Kit

(NR50-OD only) 1

180,000 BTU

25,000 BTU

177

4.0

0.55 2.25

10.5

670

15 150

NR71-SV

3. Before Installation

Checkup

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

DANGER

Do Not Use Equipment for Purposes Other Than Those Specied

• 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

180,000 Btuh for NR71 series.

(140,000 Btuh for NR66 series.)

(120,000 Btuh for NR50 series.)

Check the Power

• The power supply required is 120V AC, at 60Hz.

Using the incorrect voltage may result in re 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.

Ex. For Natural Gas NR71-SV

4. 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 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. The pan must not restrict combustion air ow.

• Install the exhaust 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.

• -OD type is for outdoor installation only. Never install it indoors.

Do not enclose the termination with corrugated metal or other materials.

• Avoid places where res 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 re 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.

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

• Consult with the customer concerning the location of installation.

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

• 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.

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

which has glass or wired glass facing the termination.

Prohibited

DANGER

WARNING

CAUTION

This will cause carbon monoxide poisoning and a potential re hazard.

[-SV type only]

• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a

mobile home, recreation vehicle or on a boat.

[-OD type only]

• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a

recreational vehicle or on a boat.

•

Avoid installation above gas ranges or stoves. (-SV type 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

entering in the equipment. (

-SV type only

)

• Install in a location where the exhaust gas ow will not be af-

fected by fans or range hoods.

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

Avoid installation on common walls as the unit will make some

operational noises while it is running.

• Make sure that the location allows installation of the exhaust

vent as specied.

• For outdoor installation, use the outdoor vent cap. (

-SV type only

)

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

lation, use high temperature sealant around the ue collar for

rain protection.

• Avoid installation where the unit will be exposed to excessive

winds.

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

vent cap in an outdoor installation) will have the proper clear-

ances 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 re-

quest instructions.

The Commonwealth of Massachusetts:

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

2) 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

Be sure to do

Prohibited

CAUTION

Prohibited

5. 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

12" or more(Indoor)

36" or more(Outdoor)

4" or more(Indoor)

24" or more(Outdoor)

2" or more(Indoor)

6" or more(Outdoor)

• If possible, leave 8" or more on either

side of the unit to facilitate inspection.

• If possible, leave 24" or more in front of

the unit to facilitate maintenance

and service if necessary.

• If possible, leave 3" or more above and

below the vent pipe to facilitate inspec-

tion and repair if necessary

Securing of space for

repair/inspection

24" or

8" or

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

(unit: inch)

Cooking Equipment

WARNING

[ -SV type only ]

or more

Item Check

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

evacuation route of 24" or more in width.

•

Provide clearance of 24" or more in front of the unit to

facilitate inspection and repair. Do install the unit such as

the wall of the second oor where the unit is out of reach.

• When installing the unit in a common side corridor, pro-

vide a clearance of 47" or more in front of the unit.

• Set the bottom edge of the exhaust port about 84" from

the corridor oor.

Handrail

common side

corridor

balcony, etc.

Handrail

about 84"

• Maintain the following clearance from both combustible

and non-combustible materials.

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

lating board (incombustible material other than metal,

with thickness of 0.1" or more) or "section of building

effectively nished with incombustible material."

Note, however, that combustion failure may occur to

the unit as exhaust gas reects from the wall. Provide

clearance of 24" or more in the front of the unit to facili-

tate inspection and repair.

24" (12")

or more

0.4" or more

combustible

36" or more

6" or more

Surrounding the area of installation

24" or more

47" or more

Required Clearances From Heater

combustible

[ -OD type only ]

Illustration

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 2 feet 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

3' within a height 15' above

meter/regulator assembly

I= Service regulator vent outlet 3'

Nonmechanical air supply inlet or

combustion air inlet to any other

appliance

4' below or to the side of

opening, or 1' above opening

(36")

4' below or to the side of

opening, or 1' above opening

(36")

K= Mechanical air supply inlet 3' above if within 10' (6')

L= Above paved sidewalk or paved

driveway located on public property

Under veranda, porch, deck, or

balcony

(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.

* (12"- Canada Only****)

12" (12")

12" (36")

3' within a height 15' above

meter/regulator assembly

12" (36")

3' above if within 10' (6')

(7' ***)

* (12"- Canada Only****)

12" (12")

Indoor Installation

(See p.9)

Outdoor Installation

(See p.10)

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

• 4' below, 4' horizontally from, or 1' above

any door, operable window, or gravity air

inlet into any building.

3' above any forced air inlet within 10'.

Maintain the following clearances to any

opening in any building: Illustration

Noritz vent cap

VC4-1 (NR71-SV only)

VC3 (NR66-SV only)

• 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'.

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: 36".

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

Outdoor w/vent cap.

1' 1'

Clearance Requirements from Vent Terminations to Building Openings

[ -SV type only ]

[ -OD type only ]

• 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'.

Maintain the following clearances to any

opening in any building: Illustration

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

forced air inlets: 6'.

1' 1'

Outdoor Clearances to Opening

into 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'.

Vent Clearances When Heater is

Installed in a Recess Box (-OD type only)

(recess box installation with cover removed)

1' 1'

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