Noritz NR98-OD Installation Manual
NORITZ AMERICA
*SBA8348*
Installation Manual
CORPORATION
TANKLESS GAS WATER HEATER
NR98-OD (Outdoor Installation)
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 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.
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Prohibited
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 fill in all of the required
items on the warranty and to hand the warranty to the customer along with the Owner's Guide.
SBA8348
Rev. 09/09
CERTIFIED
R
Low NOx
Approved by
SCAQMD
Accepted For Use
City of New York
Department of Buildings
MEA 19-03-E
FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFACTURED
HOME APPLICATIONS.
I
nstallation 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
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 specifications of its products without notice.
1.
Included Accessories
The following accessories are included with the unit.
Check for any missing items before starting installation.
Part Shape Q’ty
Cross Recessed
Head Screw
Remote Controller
(See p. 17)
2.
Optional Accessories
Remote Controller
Cord (26ft)
Isolation Valves
(includes pressure
relief valve)
3
1
1
1
Owner's Guide, Warranty,
Installation Manual
(this document)
Remote Controller
Cord (10ft)
The accessories listed below are not
included with the units, but may be necessary
for installation.
Quick Connect Cord
Remote Controller
Outdoor
Junction Box
Q’tyShapePart
1
each
1
Q’tyShapePartPart Shape Q’ty
1
1
2
Recess Box
(RB-700)
1
Pipe Cover
(PC-2S)
1
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 ft. long. Install the units 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).
System Diagram
Quick Connect
Cord
Cord
Connector
Typical Plumbing
Cord
Connector
Terminal Block
Remote Controller
Remote Controller Cord
G
Distance at center: 16-32 in.
Distance on sides
2-18 in.
* When connecting two units, use only a
single remote controller.
Note: Connect the remote
controller to only one
of the units.
Gas Supply Piping
Cold Water Supply
Hot Water
Union
Union
Gas Valve
Shutoff Valve
Shutoff
Valve
Hot Water
Cold Water
Size the piping to allow for the maximum
flow rates of the units.
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.
WARNING
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.
NR98-OD
10.3a-2007
199,900 BTU
12,000 BTU
4.3a-2007
199,900
168,000
202
765
4.0
0.6 2.7
15
10.5
192,800
162,000
150
2
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.
CAUTION
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.
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 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.
DANGER
• This water heater is for outdoor installation only.
Never install it indoors.
Do not enclose the termination with corrugated
metal or other materials.
This will cause carbon monoxide
poisoning and a potential fire
hazard.
Indoor
4
WARNING
• 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
recreational vehicle or on a boat.
CAUTION
• 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.
Prohibited
• 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.
• 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.
Avoid installation on common walls as the unit will make some operational noises while it is running.
• Avoid installation where the unit will be exposed to excessive winds.
• Before installing, make sure that the vent 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.
The Commonwealth of Massachusetts:
1) The outdoor units (OD) 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.
Prohibited
5
6. Installation Clearances
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 Check Illustration
• 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 0.1" or more) or "section of building effectively finished with incombustible material."
Note, however, that combustion failure may occur to the
unit as exhaust gas reflects from the wall. Provide clearance of 24" or more in the front of the unit to facilitate
inspection and repair.
combustible
24" (12")
or more
0.4" or more
combustible
combustible
Required Clearances From Heater
• When installing the unit in a common side corridor, provide a clearance of 47" or more in front of the unit.
• Set the bottom edge of the exhaust port about 84" from
the corridor floor.
• 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 floor where the unit is out of reach.
Surrounding the area of installation
combustible
6" or more
Handrail
24" or more
balcony, etc.
36" or more
6" or more
combustible
47" or more
about 84"
common side
corridor
Handrail
6
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.
A=
B=
C=
D=
E=
F=
G=
H=
I=
J=
K=
L=
M=
Clearance
Above grade, veranda, porch, deck,or balcony
Window or door that may be opened
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
Unventilated soffit
Outside corner
Inside corner
Each side of center line extended above
meter/regulator assembly
Service regulator vent outlet
Nonmechanical air supply inlet or combustion air inlet
to any other appliance
Mechanical air supply inlet
Above paved sidewalk or paved driveway located on
public property
Under veranda, porch, deck, or balcony
Vent Terminal
Air Supply Inlet
Outdoor Installation
(See p.8)
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****)
Area Where Terminal
is Not Permitted
*
*
*
*
*
3'
()= 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.
7
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.
Maintain the following clearances to any
opening in 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'.
into Any Building
Outdoor Clearances to Opening
• 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'.
Illustration
1'
1'
1'
3'
1'
1'
1'
3'
Installed in a Recess Box
Vent Clearances When Heater is
(recess box installation with cover removed)
* For Installations in Canada, clearances are as follows: To windows, doors, & gravity air inlets: 36".
To forced air inlets: 6'.
8
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