Noritz NR83-DVC Installation Manual
NORITZ AMERICA
*SBA8444*
Installation Manual
CORPORATION
TANKLESS GAS WATER HEATER
(Indoor Installation)
NR83-DVC
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.
SBA8444-2
Rev. 03/13
Low NOx
Approved by
SCAQMD
14 ng/J or 20 ppm
(Natural Gas Only)
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 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 specications of its products without notice.
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 V alves
(includes pressure
relief valve)
Part No. Description
4"-CVP-4STR
12"-CVP-12STR
24"-CVP-24STR
36"-CVP-36STR
Straight
Part No. Description
CVT-S
Q’ty
5
Q’ty
1
1
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
CRC CAIP
Part No. Description
Q’ty
1
each
Q’ty
1
11"-CVP-11ADJ
16"-CVP-16ADJ
40"-CVP-40ADJ
CVP-90ELB SS5-2
CVP-45ELB
CVP-90ADJELB
Adjustable
90 Elbow
45 Elbow
Adjustable
90 Elbow
CWF
FP-5-OUT
CWF-90ELB
Flange
Adapter
Support Strap
Plate
Horizontal T ermination
Flange Elbow
Rain Cap
CRF-P
Roof Flashing
(Cap)
CRFA-40
Roof Flashing
(Adapter A)
Horizontal Kit - CVK-H
Vertical Kit - CVK-V
CRF-20
CRFB-55
Standard Horizontal Kit
Note: Additional vent pieces are available; consult the latest product catalogue for details.
2
Air Intake pipe
Roof Flashing
(Base)
Roof Flashing
(Adapter B)
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
Quick Connect
Cord
Cord
Connector
Typical Plumbing
*1 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
Cold Water Supply
Gas Supply Piping
G
Distance at center: 16-32" (406-812mm).
Distance on sides
2-18" (50-450mm).
Hot Water
Union
Union
Gas Valve
Shutoff Valve
Size the piping to allow for the
maximum flow rates of the units.
Shutoff
Valve
Hot Water
Cold Water
The backflow preventer is
put up before it diverges.
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 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 specied by Noritz America.
Do not attempt to use materials that are not specied 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.
CAUTION
Do Not Use Equipment for Purposes Other Than Those Specied
• 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 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.
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 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
mobile home, 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 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.
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 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.
• Before installing, make sure that the exhaust ue termination will
have the proper clearances according to the National Fuel Gas
Code (ANSI Z223.1).
Prohibited
Be sure to do
Prohibited
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 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
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 NSCNGPIC 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
Area Where T erminal
* 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.
D
E
L
B
DescriptionRef
Clearance above grade, veranda, porch,
A=
deck, or balcony
Clearance to window or door that may
B=
be opened
C=
Clearance to permanently closed window
Vertical clearance to ventilated soffit
located above the terminal within a
D=
horizontal distance of 2 feet (61 cm)
from the center line of the terminal
E=
Clearance to unventilated soffit
Clearance to outside corner
F=
G=
Clearance to inside corner
Clearance to each side of center line
H=
extended above meter/regulator assembly
I=
Clearance to service regulator vent outlet
Clearance to nonmechanical air supply
J=
inlet to building or the combustion air inlet
to any other appliance
Clearance to a mechanical air supply inlet
K=
Clearance above paved sidewalk or paved
L=
driveway located on public property
Clearance under veranda, porch, deck,
M=
or balcony
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).
C
F
B
G
A
B
B
B
B
J
A
Vent Terminal
Air Supply Inlet
Canadian Direct Vent
Installations
12 in (30 cm)
36 in (91 cm)
*
*
*
*
3 ft (91 cm) within a height
15 ft (4.5 m) above the
meter/regulator assembly
*
3 ft (91 cm)
36 in (91 cm)
6 ft (1.83 m)
7 ft (2.13 m)†
12 in (30 cm)‡
H
I
M
1
3 ft (91 cm) above if within
10 ft (3 m) horizontally
K
is Not Permitted
US Direct Vent
Installations
12 in (30 cm)
12 in (30 cm)
*
*
*
*
*
*
*
12 in (30 cm)
*
*
2
Installation
7.
Securing to the wall
8
Be sure to do
* Do not change any other dipswitches.
• The weight of the device will be applied to the wall. If the strength of the wall is not sufcient, 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 inict 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 waterproong 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, discon-
nect, then reconnect power to the water heater to
reset the system.
Above 2,000 ft.(610m).
Note : Please refer to page 23 for the location of the
Installations at Elevations
dip switch bank.
Anchoring Screw
* High elevation adjustment.
65
0 - 2,000 ft (0 - 610m)
2,001 - 4,000 ft (611 - 1,220m)
4,001 - 6,000 ft (1,221 - 1,830m)
6,001 - 8,000 ft (1,831 - 2,440m)
ON= OFF=
9
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