Noritz America NR83DVC Installation Manual

NORITZ AMERICA

Installation Manual

CORPORATION

TANKLESS GAS WATER HEATER

(Indoor Installation)

NR83DVC (GQ-2457WS-FFA US)

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:

causing property damage, personal injury or death.

Prohibited

If the information in this manual is not followed exactly, a re or explosion may result

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

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 ll in all of the required

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

Low NOx

Approved by

SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

SBB80JW-1

Rev. 05/16

FOR USE IN RESIDENTIAL 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 54-

latest edition and/or the Natural Gas and Propane Installation

Code CSA B149.1 - latest edition.

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 specications of its products without notice.

*SBB80JW*

Included Accessories

1.

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

Part Shape

Anchoring Screw

Optional Accessories

2.

Quick Connect Cord

(QC-2)

Isolation Valves*

(includes pressure

relief valve)

Part No. Description

4"-CVP-4STR
12"-CVP-12STR
24"-CVP-24STR

36"-CVP-36STR

Straight

Q’ty

5

Q’ty

1

1

Part No. Description

CVT-S

Straight

Termination

ShapePart

Owner's Guide, Warranty,

Installation Manual

(this document)

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

ShapePartPart Shape

Pipe Cover

(PC-2S)

Part No. Description

CRCAI-1-F CAIP

Part No. Description

Q’ty

1

each

Q’ty

1

11"-CVP-11ADJ

16"-CVP-16ADJ

40"-CVP-40ADJ

CVP-90ELB

CVP-45ELB

CVP-ADAPT-M2M

Male to Male Adapter

CVP-90ADJELB**

Adjustable

90 Elbow

45 Elbow

Adjustable

90 Elbow

CWF-F

SS5-2

FP-5-OUT

CWF-90ELB**

Wall Flange

-Female Model

Support Strap

Plate

Horizontal Termination

Flange Elbow

Rain Cap

CRF-P

Roof Flashing

(Cap)

CRFA-40

Roof Flashing

(Adapter A)

Horizontal Kit - CVK-H-F

Vertical Kit - CVK-H2-F

Air Intake pipe

CRF-20

Roof Flashing

(Base)

CRFB-55

Roof Flashing

(Adapter B)

Standard Horizontal Kit

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

* Isolation valves are necessary for ushing the Heat Exchanger.
They allow for easy ushing of the system.
** "Male to Male Adapter (CVP-ADAPT-M2M)" is necessary for using "Adjustable 90°Elbow (CPV-

90ADJELB)" and "Horizontal Termination Flange Elbow (CWF-90ELB)".

2

G

Quick Connect
Cord

Gas Supply Piping

Cold Water Supply

Hot Water

Remote Controller

*1

Cord
Connector

Cord
Connector

Distance at center: 16-32" (406-812mm).

ter

Make this distance as short
as possible.
*
will become unstable as the
pipe length increases.

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 6' (2m) long. Install the units 2-18" (50-450mm) 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

Typical Plumbing

Distance on sides

2-18" (50-450mm).

*1 When connecting two units, disconnect
the remote controller connector from
the other unit.

Note: Connect the remote

controller to only one
of the units.

When quick connecting

with a NR83-DVC model,

the remote controller

must be connected to
the NR83DVC (GQ­2457WS-FFA US)

unit.

The hot water temperature

• Insulate the hot wa ter 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.

Union

Union

Gas Valve

Shutoff Valve

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

Shutoff
Valve

Hot Water

Cold Wa

The backflow preventer is
put up before it diverges.

3

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.

180,000 BTU

18,000 BTU

182

4.0

1.0 2.5"

10.5"

689

15

150

2

NR83DVC (GQ-2457WS-FFA US)

Before Installation

4.

DANGER

Checkup

• Check the xing 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 specied by Noritz America.
Do not attempt to use materials that are not specied for use on this appliance.

Improper venting may result in a re, 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

180,000 Btuh for this unit.

Check the Power

• The power supply required is 120VAC, at 60Hz.
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. Do not use a solar pre-heater with the quick-connect multi-system.

Precautions for Mobile Home Installation

• Verify that the gas supply type matches the gas type listed on the rating plate. If a gas conversion

must be done, follow the instructions listed in the manual.

CAUTION

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.

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 oors of the structure. When such installation
locations cannot be avoided, a suitable drain pan, adequately drained, must be installed under the

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

* As with any water heating appliance, the potential for leakage at some time in the life of the product

does exist. The manufacturer will not be responsible for any water damage that may occur.

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 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 accumulate and reduce the performance of the unit's fan.
This can result in incomplete combustion.

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.

• The manufacturer does not recommend installing the water heater in an
attic due to safety issues.

If you install the water heater in an attic:

•

Make sure the unit will have enough combustion air and proper ventilation.

•

Keep the area around the water heater clean. Dust may accumulate and
reduce the performance of the unit's fan. This can result in incomplete

combustion.

• Place the unit for easy access for service and maintenance.

• A drain pan, or other means of protection against water damage, is

required to be installed under the water heater in case of leaks.

5

CAUTION

• 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.

• 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.

• 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.

Prohibited

Prohibited

• 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.

• Before installing, make sure that the exhaust ue termination will
have the proper clearances according to the National Fuel Gas
Code (ANSI Z223.1-latest edition) or the Natural Gas and Propane

Installation Code (CSA B149.1).

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: The water heater can be used for hot water only and not in a
combination of domestic and space heating.

Be sure to do

Prohibited

For Venting Manufacturers Requirements, see websites or phone numbers listed below:

Noritz N-Vent www.noritz.com

6

Installation Clearances

6.

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 the Natural Gas and Propane Installation

Code CSA B149.1 - latest edition for detailed requirements.

Item

• Maintain the following clearances

from both combustible and
non-combustible materials.

Distance from combustibles

• 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

repair/inspection

inspection and repair if necessary.

Securing of space for

Check Illustration

2" (50mm)
or more

Distance from
the side

8" (200mm)
or more

24" (600mm)

or more

12" (300mm)
or more

4" (100mm)
or more

3" (75mm)

3" (75mm)

8" (200mm)
or more

or more

or more

7

Clearance Requirements from Vent Terminations to Building Openings

DescriptionRef

A=

Clearance above grade, veranda, porch,

deck, or balcony

B=

Clearance to window or door that may

be opened

C=

Clearance to permanently closed window

D=

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

*

E=

Clearance to unventilated soffit

*

F=

Clearance to outside corner

*

G=

Clearance to inside corner

*

H=

Clearance to each side of center line
extended above meter/regulator assembly

3 ft (91 cm) within a height

15 ft (4.6 m) above the

meter/regulator assembly

I=

Clearance to service regulator vent outlet

3 ft (91 cm)

J=

Clearance to nonmechanical air supply

inlet to building or the combustion air inlet

to any other appliance

K=

Clearance to a mechanical air supply inlet

6 ft (1.83 m)

L=

Clearance above paved sidewalk or paved
driveway located on public property

Clearance under veranda, porch, deck,

or balcony

7 ft (2.13 m)†

M=

1

In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code

2

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

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

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

12 in (30 cm)‡

*

12 in (30 cm)

36 in (91 cm)

*

*
*
*

*

*

*

*

3 ft (91 cm) above if within

10 ft (3 m) horizontally

*

12 in (30 cm)

12 in (30 cm)

12 in (30 cm)

36 in (91 cm)

US Direct Vent

Installations

2

Canadian Direct Vent

Installations

1

Vent Terminal

D

E

B

B

F

B

A

G

H

I

C

B

M

K

J

B

B

L

Air Supply Inlet

Area Where Terminal
is Not Permitted

A

* 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 the Natural Gas and Propane Installation Code

CSA B149.1.

8

Installation

7.

Securing to the wall

Be sure to do

* Do not change any other dipswitches.

* High elevation adjustment.

65

2,001 - 4,000 ft (611 - 1,220m)

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

ON= OFF=

4,001 - 6,000 ft (1,221 - 1,830m)

6,001 - 8,000 ft (1,831 - 2,440m)

• 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.

Item

• 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.

• The distance between the unit and the wall can be

adjusted within the range of 0.4 - 1.8" (10 - 46mm).
Adjust the brackets as necessary to accommodate

the vent system (factory default is 0.4" (10mm)).

1.

Loosen the four screws in the mounting bracket (upper),

match the desired mark to the back of the unit, and
then tighten the screws.

Locating Screw Holes

2.

Loosen the four screws in the mounting bracket (lower) and

secure it in the same position as the upper mounting bracket.

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

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

the upper wall mounting bracket.

5.

Determine the positions for the remaining four screws
(two for the top bracket and two for the bottom), and

remove the unit.

CAUTION

IllustrationCheck

mounting bracket

(upper)

mark
(0.4" (10mm) intervals)

0.4 - 1.8"

(10 - 46mm)

mounting bracket
(lower)

Location of Screw Hole

Mounting Bracket
(upper)

Locating Screw Holes

6. Drill holes for the remaining four screws.

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

insert and tighten the remaining four screws.

8. Take waterproong measures so that water does

Mounting

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.

Structure

• 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 chang
ing the dip switches. Failure to perform this step will
result in a "73" code displayed on the remote control­ler and a cease in operation. If this occurs, discon­nect, then reconnect power to the water heater to

reset the system.

Above 2,000 ft.(610m).

Note : Please refer to page 27 for the location of the

Installations at Elevations

dip switch bank.

Anchoring Screw

-

9

> 3" (75mm)

(20-75mm)

0.8"-3"

< 0.8"
(20mm)

ოෘ

Vent Pipe Installation

8.

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

• This appliance requires the use of special concentric type vent pipe specied by Noritz America.
Do not attempt to use materials that are not specied for use on this appliance.

Straight Termination Installation Precautions.

Note the following vent terminal installation requirements.

• Do not install the vent terminal indoors

Z233.1/NFPA 54 – latest edition, and in Canada, in accordance with the Natural Gas and

Propane Installation Code CSA B149.1 – latest edition.

Do not cover the vent terminal with any type of protective

•

screen or enclosure. Blocked terminals can cause abnor-

mal combustion resulting in undesired performance from

the water heater.

Install with the proper length protruding through the wall

•

Proper installation.

The red line can be
seen, but not more
than 2.2" (55mm)
from the wall.

Avoid installing the terminal where obstacles

•
will block it

•

Clearance from vent terminal.

If multiple units are installed, the concentric vent terminals must be separated

by a minimum of either 12" (300mm) horizontally or 60" (1.5m) vertically.

Vent terminal

Snow
drift

12" (300mm) or more

not far
enough

Vent terminal

Tree

too far

• Install the vent terminal with a downward slope

downward

slope

Avoid storing hazardous

•

objects near the terminal

Gasoline

Gas

upward

slope

10

Vent terminal

60" (1.5m) or more

Vent terminal