Noritz NRC663-FSV 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

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

CONDENSING TANKLESS GAS WATER HEATER

NRC663-FSV (EZTR40)

(Indoor Installation)

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

WARNING

CAUTION

SBB809L

Rev. 08/14

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 ll in all of the required

items on the warranty and to hand the warranty to the customer along with the Owner's Guide.

CAUTION

FOR USE IN RESIDENTIAL 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.

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

time, the designs and/or specifications of its products without

notice.

Low NOx

Approved by

SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

Included Accessories

The following accessories are included with the unit.

Check for any missing items before starting installation.

Q’ty

ShapePart

Anchoring Screw 1

each

Part Shape Q’ty

Remote Controller

(See p. 28) Remote Controller

Cord (10ft (3m))

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 (8m)) 1

each

Isolation Valves*

(includes pressure

relief valve)

Owner's Guide, Warranty,

Installation Manual

(this document)

1N-FlexKit2"-35

Note: Additional vent pieces are available; consult the latest product catalogue for details.

Neutralizer

(NC-1)

* Isolation valves are necessary for ushing the Heat Exchanger.

They allow for easy ushing of the system.

Check the Gas

• Check that the rating plate indicates the

correct type of gas.

• Check that the gas supply line is sized for

120,000 Btuh.

Check the Power

• The power supply required is 120VAC, 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.

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

Precautions on Vent Pipe Replacement

• The vent system will almost certainly need to be replaced when this appliance is being installed.

Only use vent materials that are specied in this Installation Manual for use on this appliance.

Refer to the "Vent Pipe Installation" section for details. If the exible polypropylene pipe is already

installed, replace to the new exible polypropylene pipe.

Improper venting may result in res, 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.

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

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 ow.

• 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.

• 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.

• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a mobile home, recreational

vehicle or on a boat.

• The water heater is designed for indoor installation only. Never install it

outdoors or in a bathroom, it may be damaged or a re 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.

• Do not install the water heater in a place where the inside/outside

temperature is below 32°F (0°C).

• The water heater must be installed in a place where 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.

DANGER

WARNING

CAUTION

Prohibited

• 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 ow will not be affected

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.

• Avoid installation where the exhaust vent terminal will be exposed

to excessive winds.

• Before installing, make sure that the exhaust ue 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.

Be sure to do

Prohibited

CAUTION

The Commonwealth of Massachusetts: 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 listed below:

Noritz N-Flex vent kit www.noritz.com

http://support.noritz.com/

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 for detailed requirements.

WARNING

Item

Distance from combustibles

• Maintain the following clearances

from both combustible and

non-combustible materials.

Check Illustration

• If possible, leave 8" (200mm) or more

on either side of the unit to facilitate

inspection.

• If possible, leave 24" (600mm) or more in

front of the unit to facilitate maintenance

and service if necessary.

• If possible, leave 3" (75mm) or more

above and below the vent pipe to facilitate

inspection and repair if necessary.

Securing of space for

repair/inspection

24" (600mm)

or more

Distance from the side

12" (300mm) or more

3" (75mm) or more

4" (100mm) or more

3" (75mm) or more

8" (200mm)

or more

8" (200mm)

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 noncombustible

material of a width greater than the water

heater.

Exhaust hood

Range

Dividing plate Water

heater

Cooking Equipment

▲The illustration is an example. Please check with the actual water heater about the position of piping, and form.

3" (75mm) or more

DescriptionRef

Clearance above grade, veranda, porch, deck, or balcony

Clearance to window or door that may be opened

Clearance to permanently closed window

Vertical clearance to ventilated soffit located above the

terminal within a horizontal distance of 2 feet (61 cm)

from the center line of the terminal

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line extended above

meter/regulator assembly

Clearance to service regulator vent outlet

Clearance to nonmechanical air supply inlet to building or

the combustion air inlet to any other appliance

Clearance to a mechanical air supply inlet

Clearance above paved sidewalk or paved driveway located

on public property

Clearance under veranda, porch, deck, or balcony

In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code

* Clearance in accordance with local installation codes and the requirements of the gas supplier.

Clearance to opposite wall is 24 inches (60 cm).

3 ft (91 cm) above if within

10 ft (3 m) horizontally

12 in (30 cm)

4 ft (1.2 m) below or to side of opening;

1 ft (30 cm) above opening

4 ft (1.2 m) below or to side of opening;

1 ft (30 cm) above opening

US Non-Direct Vent Installations 1

Vent Te rminal

Air Supply Inlet

Area Where Te rminal

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.

6. Installation

Securing to the wall

IllustrationCheck

4. Drill holes for the remaining four screws.

5. Hang the unit again by the rst screw, and then

insert and tighten the remaining four screws.

6. Take waterproong measures so that water does

not enter the building from screws mounting the

device.

• Make sure the unit is installed securely so that it will

not fall or move due to vibrations or earthquakes.

1. Drill a single screw hole, making sure to hit a stud.

2. Insert and tighten the screw and hang the unit by

the upper wall mounting bracket.

3. Determine the positions for the remaining four screws

(two for the top bracket and two for the bottom), and

remove the unit.

• The weight of the device will be applied to the wall. If the strength of the wall is not suf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.

• Install the unit on a vertical wall and ensure that it is level.

• Do not install the water heater when the inside/outside temperature is below 40°F (5°C).

Locating Screw Holes

Mounting

Structure

• When installing with bare hands, take caution to

not inict injury.

• Be careful not to hit electrical wiring, gas, or water

piping while drilling holes.

Item

CAUTION

Be sure to do

Mounting Bracket

(upper)

Location of Screw Hole

Locating Screw Holes

Installations at Elevations

Above 2,000 ft.

• Adjust the DIP switches as illustrated in the table to

the right if this water heater is installed at an altitude

of 2000 ft. (610m) or higher.

• Disconnect power to the water heater before changing

the DIP switches. Failure to perform this step will result

in a "733" code displayed on the Display Window and

a cease in operation. If this occurs, disconnect, then

reconnect power to the water heater to reset the system.

Anchoring Screw

▲The illustration is an example. Please check with the actual water heater about the position of piping, and form.

* Do not change any other DIP switches.

* High elevation adjustment.

2,001 - 3,500 ft (611 - 1,050m)

0 - 2,000 ft (0 - 610m)

ON=OFF=

Filling the condensate trap with water

DANGER

When initial start up, make sure that you perform the following procedures.

This is to prevent dangerous exhaust gases from entering the building.

Failure to following procedure could result in severe personal injury or death.

After installing the drain pipe, make sure that the area around the unit is well ventilated; open a window or a

door if necessary. Then, operate the unit and verify that condensate is coming out of the drain pipe. (During

normal use of the unit, condensate will begin to discharge from the drain pipe within 15 minutes of use.

However, depending on the season and/or installation site conditions, it may take longer.)

Maximum Vent Lengths

• This appliance has been designed to be vented

with 2" exible polypropylene pipe.

Do not exceed the following maximum vent lengths:

Max. Straight Vent Length : 35' (10.5m)

Maximum allowable 45° elbows are 2 elbows

* Not including the 45° adapter included in

N-FlexKit2"-35

* No 90° elbows

* Not including the termination.

7. Vent Pipe Installation (Indoor Installation Only)

WARNING

Be sure to do

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

Z233.1/NFPA 54 – latest edition.

• Under normal conditions, this appliance will

not produce an exhaust flue temperature in

excess of 149°F.

Refer to page 12 for additional requirements.

• Make sure the vent system is gas tight and

will not leak.

• Do not common vent or connect more than

one appliance to this venting system.

•

The total vent length including vertical vent runs

should be no less than 5' (1.5m).

•

Do not store hazardous or ammable substances

near the vent termination and check that the

termination is not blocked in any way.

• Steam or condensed water may come out

from the vent termination. Select the location

for the termination so as to prevent injury or

property damage.

• If snow is expected to accumulate, take care

the end of the pipe is not covered with snow

or hit by falling lumps of snow.

General Requirements

Clearances

2" exible polypropylene pipe has been approved

for use on this appliance with zero clearance to

combustibles.

• Do not install the water heater when the inside/outside temperature is below 40°F (5°C).

Be sure to do

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