Noritz N-084M-DV-CA Installation Manual
Owner’s Guide and
Installation Manual
Model N-084M-DV-CA
WARNING: If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
-Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
-WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
•Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
-Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
CERTIFIED
R
Low NOx
Approved by SCAQMD
SAR8210-1
Thank you for purchasing this Noritz Gas Water Heater. Before using, please:
Read this manual completely for correct installation and operation instructions.
Completely fill out the warranty registration card (included separately) and
mail the detachable portion to Noritz America Corporation.
Keep this manual (and the remainder of the warranty registration card) where it
can be found whenever necessary.
NORITZ America Corporation
*SAR8210 T*
Contents
Contents ........................................................................................................ 2
Owner's Guide
Important Safety Information.......................................................................3
General Parts
Main Unit....................................................................................................8
Remote Controller .................................................................................... 9
Initial Operation ........................................................................................... 11
Setting and Using the Water Heater...........................................................12
Flow Meter Alarm......................................................................................... 14
Muting the Remote Controller .................................................................... 16
Preventing Damage from Freezing ............................................................ 17
Regular Maintenance...................................................................................19
Troubleshooting .......................................................................................... 21
Follow-up Service ........................................................................................ 25
Specifications .............................................................................................. 26
External Outfitting ....................................................................................... 27
Combustion Unit and Gas Route ............................................................... 29
Hot-Water Feed Route ................................................................................. 31
Electronic Control Unit................................................................................33
Electronic Control Unit, Remote Controller and Attached Set................ 34
Installation Manual ...................................................................................... 35
10. Water Piping........................................................................................... 48
11. Plumbing Applications.......................................................................... 49
12. Electrical Wiring .................................................................................... 50
13. Maintenance........................................................................................... 54
14. Trial Operation ....................................................................................... 54
15. Dimensions and Wiring Diagram ......................................................... 55
16. Multi-System .......................................................................................... 57
Remote Controller Installation Guide ........................................................ 61
2
1. Included Accessories............................................................................36
2. Optional Accessories............................................................................ 36
3. Quick Connect Multi System Installation ............................................ 37
4. Before Installation ................................................................................. 38
5. Choosing Installation Site .................................................................... 39
6. Installation Clearances ......................................................................... 40
7. Installation..............................................................................................42
8. Vent Pipe Installation ............................................................................ 42
9. Gas Piping.............................................................................................. 46
Important Safety Information-1
To prevent damage to property and injury to the user, the icons shown below will be used to warn of
varying levels of danger.
Every indication is critical to the safe operation of the water heater and must be understood and
observed.
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.
Icons warning of risk level
Danger
Warning
Caution
Remarks
Other icons
Electric
Shock.
Prohibited
If you detect a gas leak:
1. Do not try to light any appliance
2. Do not touch any electrical
switch; do not use any phone in
your building.
3. Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
4. If you cannot reach your gas
supplier, call the fire department.
Denotes content that may result in instantaneous fire, serious injury
and even death when ignored.
Denotes content that may result in fire, serious injury and even
death when ignored.
Denotes content that may result in bodily injury and physical
damage when ignored.
The content following this icon is necessary to understand for safe
and easy use of this water heater.
High
Temperature.
No flame.
Be sure
to do.
Don’t
touch.
Danger
Ground.
Don’t
disassemble
the equipment.
Do not use the water heater if
the intake/exhaust pipe is
displaced, has holes, or is
corroded.
Don’t touch
with a wet
hand.
3
Important Safety Information-2
Warning
If you detect abnormal combustion
or abnormal odors, or during an
earthquake, tornado or fire:
1. Turn off the hot water supply
2. Turn off the power to the water
heater
3. Turn off gas and water at the main
4. Consult the nearest Noritz agent
Check the temperature of the
running hot water before
entering the shower.
Check the temperature before
stepping into the bath tub.
Be sure the gas/power supplied
matches the gas on the rating
plate.
For Natural Gas
Do not allow small children to play
unsupervised in the bathroom.
Do not allow small children to
bathe unsupervised.
4
Do not turn off the water heater or
change the water temperature while
someone is using.
Consult the nearest Noritz agent if
the water heater location needs to
be changed.
Contact a qualified service
technician for any necessary
repairs, service or maintenance.
Contact Noritz before using with
a solar pre-heater.
Warning
Do not place combustibles such as
laundry, newspapers, oils etc. near
the heater or the exhaust vent
terminal.
Vent terminal
Do not use combustible chemicals
such as oil, gasoline, benzene etc.
in the vicinity of the heater or the
exhaust vent terminal.
Leave the proper clearance between
the water heater and nearby objects
(trees, timber, boxes with flammable
materials etc.).
Upper:
Min. 50mm (2")
Left side:
Min. 50mm (2")
Front:
Sug. 600mm* (24"*)
Indicates suggested clearances for
*
maintenance.
Do not place or use a spray can
near the heater or the exhaust vent
terminal.
Sug.80mm (3")
from vent pipe*
Right side:
Min. 50mm (2")
5
Important Safety Information-3
Caution
Be sure to electrically ground the
unit.
Do not touch the power cord with
wet hands.
Keep power cord free of dust.
Do not use a broken or modified
power cord. Do not bind, bend or
stretch power cords.
Do not scratch, modify, or subject
them to impact or force.
Do not use the water heater for
other than hot water supply, shower
and bath.
Do not touch the exhaust vent pipe
during or immediately after operation of the water heater.
Do not use hair spray or spray
detergent in the vicinity of the
heater.
If this unit will be installed in a salon or other location where hair
spray or aerosols will be used, locate the unit away from where
these products are used.
Do not install in locations where
excessive dust or debris will be
in the air.
6
Remark
Do not drink water that has been inside the
unit for an extended period of time. Do not
drink the first use of hot water from the unit
in the morning.
Clean the filter on the water inlet as frequently as required by the quality of
your local water.
Keep the area around the unit clean.
If boxes, weeds, cobwebs, cockroaches etc. are in
the vicinity of the unit, damage or fire can result.
Do not install the equipment where the exhaust will blow on walls or windows.
Treat hard, acidic or otherwise impure
supply water with approved methods to
ensure full warranty coverage.
Problems resulting from scale formation
are not covered by the warranty.
Do not disassemble the remote controller.
Do not use benzene, oil or fat detergents to
clean the remote controller.
This may cause deformation.
Do not get the remote controller wet.
Although it is water resistant, too much water can
cause damage.
Do not splash water on the remote controller. Do not expose the remote controller to
steam.
Do not locate the remote controller near stoves or
ovens, this may cause damage or failure.
Preventing damage from freezing ( p.17)
Damage can occur from frozen water within the
device and pipes even in warm environments.
Be sure to read below for appropriate measures.
Repairs for damage caused by freezing are not
covered by the warranty.
Check ignition during use and extinction after use.
This unit is only approved for installation
up to 1300m (4500 ft.) above sea level.
For installations at higher elevations, contact Noritz America for instructions.
Do not use parts other than those specified
for this equipment.
Take necessary measures to prevent freezing of water and leakage of gas when leaving the unit unused for long periods of time.
( p.18)
If it is snowing, check the exhaust gas vent
and exhaust vent terminal for blockage.
7
General Parts
Main Unit
Indoor Wall Mounted, Power Vented Model
Flue Collar
Intake pipe
Front Cover
Water Drain Valve (with Water Filter)
(Inside Water Inlet) ( p.20)
Pressure Relief Valve
Water Supply Valve
Gas Supply Valve
* The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
8
Remote Controller (RC-7646M-2)
Display
( next page)
Setting Buttons
For setting the hot
water temperature,
the flow meter alarm,
and other settings.
Power On/Off Button
For turning the
heater on and off.
Flow Meter Alarm Set Button
For setting the flow
meter alarm.
( p.14 and 15)
* Before use, remove the protective sheet from the remote controller surface.
*
The unit has been shipped from the factory with the remote control set at 40°C (104°F).
9
Display
The illustration below shows the remote controller display. What is actually displayed
depends on how the water heater is set.
Burner On Indicator
Priority Indicator
When this indicator
is lit, the hot water
temperature can be
set. ( p.13)
Temperature Setting
(Ex.: 40°C (104°F))
Flow Meter Setting
The display will flash
after hitting the flow
meter alarm set button.
( p.15)
Error Code
A number will flash if
a failure occurs.
( p.24)
10
Initial Operation
Before the first use of your water heater, make the following preparations.
Follow steps 1 through 4.
Open the water supply valve.
1
CLOSED
Open a hot water fixture to confirm that
water is available, and then close the
2
fixture again.
Hot water fixture
OPEN
Open the gas supply valve.
3
Turn on the power.
4
11
How to Use
Setting and Using the Water Heater
(Starting with the Power Off)
2
Press the Power
On/Off Button.
1
1
The temperature will be
displayed on the remote
control thermostat.
On
On
Caution
To prevent scalding:
High Temperature
Temperatures above 55°C (131°F) can scald.
•Check the water temperature by hand before bathing or
showering.
• When setting the unit to 55°C (131°F) or higher,
thetemperature display will flash for 10 seconds as a
high temperature warning.
• Take caution when using the unit again after setting to
55°C (131°F) or higher. Always check the set
temperature before use.
• Do not allow anyone to change the water temperature
while hot water is running.
Previous set
temperature
(Ex.: 40°C (104°F))
Remote Controller Display
Flashes for 10 sec
12
Set temperature.
2
Always check the
temperature setting
(
before use.
Hot
Cold
)
Turn on hot
water.
3
Turn off the hot
water.
4
Check the indicator lights.
Water temperature
The temperature settings below are examples. The temperature setting
(°C (°F)
37 38 39 40 41 42 43 44 45 46 47 48 50 55 60 65 70 75 80 83
(99) (100) (102) (104) (106) (108) (109) (111) (113) (115) (117) (118) (122) (131) (140) (149) (158) (167) (176) (181)
Faire la
vaisselle, etc.
*Initial factory setting is 40°C (104°F).
* For most residential applications, the recommended setting temperature is 50°C (122°F) or less.
For applications that occasionally require a higher temperature setting, locate the remote controller
in a convenient location ( p.61).
* Consult local codes for minimum operating temperatures.
:
necessary depends on the usage, the length of piping and the time of year.
Douche, alimentation en eau chaude, etc.
On
Off
)
Température élevée
If fixtures incorporate mixing valves,
set the temperature higher than usual.
13
How to Use
Flow Meter Alarm
2,3
1
3
(Starting with the power off)
Preparation
1. Plug the bath drain.
Press the Power
On/Off Button
1
On
The temperature will be displayed
on the remote control thermostat.
On
Previous set temperature
(example:40°C (104°F))
Set temperature.
Always check
2
temperature setting
(
before use.
Hot
Cold
Check the indicator lights.
Water temperature
)
14
An alarm will sound for ten
seconds when the flow
reaches the set level.
The water will continue to run unless it is
manually turned off.
To set the flow meter alarm:
Water Temperature
The temperatures settings below are only examples. The
:
(°C (°F)
37 38 39 40 41 42 43 44 45 46 47 48
(99) (100) (102) (104) (106) (108) (109) (111) (113) (115) (117) (118)
temperature setting necessary will depend on the usage,
the length of piping and the time of year.
Warmer HotWarm
* Initial factory setting: 40°C (104°F)
)
Adjust flow meter
3
alarm setting.
Press the flow meter alarm set button
(the setting will flash on the display)
and adjust with the setting buttons.
Increase
Decrease
Choose the flow meter alarm setting from the
following options: 38 - 260 L (10 - 60 gallons) (In
20 L (5 gallons), 300 L (80 gallons), 340 L (90
gallons), 380 L (100 gallons), 990 L (262 gallons).)
The alarm will not sound if it
Note:
is set for 990L(262gallons).
Turn on hot
water.
4
On
Turn off the hot
water when the
5
alarm sounds.
The alarm will sound when
the set level has been
reached. Stop the water.
The alarm will not
Note:
sound if it is set for
990L (262gallons).
Off
Flow meter setting will be flashing
(ex. 180L (48gallons))
* The level can only be adjusted
while the indicator is flashing.
* After ten seconds, the remote
will again display the temperature.
If the flow meter alarm is being used to indicate when a tub is full:
• If any hot water is being used besides what is going into the tub, the alarm will sound before
the tub is full.
• If there was water in the tub before the fill began, or if the water is not shut off manually when
the alarm sounds, the tub may overflow.
• If there was water in the tub before the fill began, the temperature in the tub after it is full may
be different from the temperature setting.
15
How to Use
Muting the Remote Controller
The remote controller will emit a sound
when any button is pushed. This sound
can be muted if it is desired.
* Initial factory setting is with sound.
1
With the remote controller
off, hold the Power On/Off
1
Button for five seconds.
Muted
No sound
after 5 sec.
Sound
Tone sounds
after 5 sec.
16
The flow meter alarm cannot be muted.
Preventing Damage from Freezing-1
Remarks
* Damage can occur from frozen water within the device and pipes even
in warm environments. Be sure to read below for appropriate measures.
* Repairs for damage caused by freezing are not covered by the warranty.
Freezing is prevented within the device automatically by the freeze-prevention heater
Freezing cannot be prevented when the power is disconnected. Do not remove the power plug
from the wall outlet.
(Freezing will be prevented regardless of whether the operation switch is ON or OFF.)
* The freeze prevention heaters will not prevent the plumbing external to the unit from freezing.
Protect this plumbing with insulation, heat tape or electric heaters, solenoids, or pipe covers.
If there remains a freezing danger, contact the nearest Noritz agent.
Take the measures below for extremely cold temperatures*.
*(outside temperature including wind chill factor less than -15°C (5°F))
This method can protect not only to the heater, but also to the water supply,
water piping and mixing valves.
1. Turn the unit on with the Power Button on the Remote Controller.
2. Close the gas supply valve.
3. Open a hot water fixture and let it run for approx. 1 minute, and
then check that the number 11 is flashing on the remote controller
display.
* If multiple units are being used, drain one minute for each unit.
* It is possible that a different number may be displayed on the
remote controller, but as long as it is flashing, you may continue.
4. Partially close the hot water fixture, but keep a small amount of hot
water running. (400cc (0.1gallon)/minute or about 4mm (0.2") thick.)
* If there is a mixing valve, set it to the highest level.
* When linking multiple units, discharge water equivalent to
400cc (0.1 gallon)/minute per unit.
5. The flow may become unstable from time to time. Check the flow
30 minutes later.
Hot Water Fixture
4mm (0.2") thick
* Remember to set mixing valves and fixtures to their original levels before using the unit again
to prevent scalding.
* If there is still a chance that the unit will freeze, drain the unit as on the next page.
If water will not flow because it is frozen:
1. Close the gas and water valves.
2. Turn off the power button.
3. Open the water supply valve from time to time to check whether water is running.
4. When the water is flowing again, check for water leaks from the equipment and piping
before using.
If the heater or the piping is frozen, do not use the heater or it may get damaged.
17
Preventing Damage from Freezing-2
If the water heater will not be used for a long period of time,
Drain the water.
Drain the water as follows:
Caution
High Temperature
Drain water into a bucket to prevent water damage.
1. Close the gas valve.
2. (1) Turn the power on.
(2) Turn and leave open the hot water fixture for more than 1 minute and close.
*If multiple units are being used, drain one minute for each unit.
*An 11 Error Code may appear on the remote control.
This is not a malfunction of the unit. Do not turn Power ON/OFF Button OFF.
3. Close the water supply valve, disconnect
the electrical power supplied to the unit.
Do not touch with wet hands.
4. Fully open all hot water fixtures.
To avoid burns, wait until the equipment cools down
before draining the water. The appliance will remain hot
after it is turned off.
Fixture
Fixture
18
5. Open all drain plugs and drain the water out
of the unit.
6. When the water is completely drained, replace all drain
plugs and close the hot water fixtures.
Turning the Unit Back On
1. Check that all drain plugs are inserted.
2. Check that all hot water fixtures are closed.
3. Follow the procedure on p.11 “Initial operation”, steps 1 through 4.
Drain Plugs
Regular Maintenance-1
Periodic Inspection
Caution
High Temperature
For laundry, newspaper, timber,
Check
oil, spray cans and other
combustible materials. ( p.5)
For abnormal sounds
Check
during operation.
For abnormalities in
Check
external appearance,
discoloration or flaws.
For proper operation of
Check
pressure relief valve.
For water leaks from the
Check
equipment and piping.
To avoid burns, wait until the equipment cools down
before draining the water. The appliance will remain
hot after it is turned off.
For dust and soot in
Check
the flue terminal.
Periodic Maintenance
Equipment
Wipe the outside surface with a wet cloth, then dry the surface. Use a neutral detergent to
clean any stains.
Remote Controller
Wipe the surface with a wet cloth.
• Do not use benzene, oil or fatty detergents to clean the remote controller;
deformation may occur.
• The remote controller is water resistant but not water proof. Keep it as dry as possible.
19
Regular Maintenance-2
Periodic Maintenance
Water Drain Valve (with Water Filter)
If the water drain valve (with water filter) is covered with debris, the hot water may not run
smoothly, or the unit may put out cold water. Check and clean the filter as explained below.
* To avoid burns, wait until the equipment cools down before draining the water.
The appliance will remain hot after it is turned off.
* Water will be discharged from the drain plug.
Place a container, etc. to receive the discharged
water.
1. Close the water supply valve.
2. Open all hot water fixtures.
3. Remove the inlet and outlet drain plugs (about
1L (0.3gallons) will drain out)
4. Take the water drain valve (with water filter) out
of the inlet. (See illustration to right).
5. Clean the water drain valve (with water filter) with
a brush under running water.
6. Replace the water drain valve (with water filter).
(Take care not to lose the packing.)
7. Close all hot water fixtures.
8. Open the water supply valve and check that
water does not leak from the drain plugs or water
drain valve (with water filter).
Optional Maintenance
Water Heater Service Valves (IK-WV-2)
Inlet
Packing
Drain Plug
(with filter)
Water Supply
Valve
20
Hot Water
Service Valve
Pressure Relief Valve
Drain
Water Outlet
Water Intlet
Cold Water
Service Valve
* Isolator valve kits may be purchased as an
accessory from Noritz (Part #IK-WV-2).
They allow for one man full diagnostic testing
and easy flushing of the system.
* The kit includes two full port isolation valves
and a pressure relief valve for the hot side.
Contact Noritz for more information.
Troubleshooting-1
Initial Operation
Unit does not attempt to ignite
when water is running.
Unit attempts to ignite but fails
Hot water is not available
when a fixture is opened.
• Is water running?
• Check for reversed plumbing or crossed pipes.
•Check the water drain valve filter. ( p.20 )
• Reset unit and try again. There may be air in the gas line.
• Have a professional check the gas supply pressure.
Temperature
•Are the gas and water supply valves fully open?
• Is the water supply cut off?
•Is the hot water fixture sufficiently open?
•
Is the gas being cut off by the gas meter ?
(Can other gas devices such as stoves be used?)
•(For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
• Is the water drain valve filter clogged? ( p.20)
• Is the power button turned on?
No water is available when
a fixture is opened.
The hot water is not the correct
temperature.
Water takes time to become hot
when turning the hot water fixture.
The water is too hot.
• Is the water supply cut off?
• Is the heater frozen?
•Is the hot water fixture sufficiently open?
• Have you allowed enough time for the cold water in the
pipes to drain out?
•Are the gas and water supply valves fully open?
• Is the water temperature setting appropriate?
( p.12 and p.13)
• If the water supply temperature is high, it is possible
for the temperature to be higher than the temperature
set on the remote controller.
• If only a small amount of hot water is demanded, it is
possible for the temperature to be higher than the
temperature set on the remote controller.
• If the supply water goes through a solar pre-heating
system, it is possible for the temperature to be higher
than the temperature set on the remote controller.
21
Troubleshooting-2
Temperature
The water is not hot enough.
The water is cold when only a
single fixture is open.
Fluctuations in hot water
temperatures.
The amount of hot water at a
certain fixture is not constant.
•Are the gas and water supply valves fully open?
• Is the water temperature setting appropriate?
• If the amount of hot water required is very high, it is
possible for the temperature to be lower than the temp erature set on the remote controller.
Decrease the amount of water passing through the unit
and the temperature should stabilize.
• The unit will not heat the water if the flow rate is less than
2.7L (0.7gallons) per minute.
Open the fixture more or open other fixtures so that a greater
flow passes through the unit, and the unit should begin
heating again.
• Set water temperature at 48°C (118°F) to 50°C (122°F).
This will allow you to use a higher flow of hot water thus
meeting the minimum flow requirement of 2.7L/min. (0.7gpm).
• Clean the water filter of any debris ( p. 20)
Amount of Hot W ater
•
When hot water is demanded at other fixtures, the amount
available may be reduced. The maximum flow available from
this unit is 32L/min. (8.4GPM) at a 7°C (45°F) temp. rise.
• Pressure fluctuations and other plumbing conditions can
cause the temperature and pressure at a fixture to be
unstable, but it should stabilize after a short time.
• There are some types of hot water taps that discharge large
volumes of hot water initially, but stabilize after time.
•To keep the temperature stable, the heater limits the
amount of water that can flow through it to a small
amount initially, but the amount increases over time.
( p.12 and p.13)
22
The amount of hot water in the tub
is less/more than the set amount.
The flow meter alarm does not
sound even when filled to the set
amount.
Amount of hot water available
has decreased over time.
•When hot water is used for other fixtures while filling the
bath tub, the tub will not fill as much.
• If there is water in the tub already, or when filling is stopped
and resumed, the tub will fill more.
•
The flow meter alarm is set to sound when hot water
is continuously discharged for the set volume of water. If mixing
valves are used, or if cold water is mixed with hot water at the
fixture, the tub will fill more than the setting of the flow meter
alarm.
• Is the water drain valve filter clogged? ( p.20)
Remote Controller
The light on the power button
does not come on.
The water temperature changes
after a power failure or when the
power is disconnected.
The fan can be heard after
operation is stopped.
A motor can be heard when turning
the unit ON or OFF, when opening
or closing a fixture, or after the unit
has been running for a while.
• Has there been a power failure?
•Is the power connected properly?
• The temperature setting and the flow meter alarm setting
may both need to be reset after a power outage.
Sounds
• These noises indicate the proper operation of devices
which are designed to let the unit reignite more quickly,
and ensure the water temperature is stable.
Other
The heater stops burning during
operation.
exhaust vent on a cold day.
The hot water is turbid.
Water leaks from the drain plugs
on the outlet.
• Are the gas and water supply valves fully open?
• Is the water supply cut off?
• Is the hot water fixture sufficiently open?
• Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
• (For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
• This is normal. The white smoke is actually steam.White smoke comes out of the
• This is harmless. Small air bubbles appear as the
water is heated and depressurized rapidly to
atmospheric pressure.
•When the unit is under very high pressure, water will leak
from the drain plugs as a safety so that the unit is not
damaged by the high pressure.
23
Troubleshooting-3
Other
The water appears blue or
The bath tub/wash-basin has turned
blue
åÃè·ï\é¶Ç Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢ åÃè·ï\é¶Ç Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢
• This can be caused by a reaction of copper ions in the
water with fat particles (furring). This is not a health risk,
and the discloration of the tub or basin can be cleaned.
Check for an Error Code
If there is a problem with the unit, a numerical error code will flash on the remote controller.
If this occurs, take appropriate measures as listed below.
When an error code appears, the display and the operation light will flash
together.
Error Code Cause Action
Ignition error
Check whether the gas valve is open. Press the power
button to turn the unit off, open a hot water fixture,
and turn the unit back on. If the flashing number
doesn't return the problem is solved.
Flashing
Remote Controller
24
Abnormal combustion,
low gas supply pressure
Contact our sales agent if:
• Any other error code appears.
• An error code is indicated again after the above actions were followed.
• There are any other questions.
Have a professional check the gas supply pressure.
Contact the nearest Noritz agent.
Contact the nearest Noritz agent.Abnormal combustion
Follow-up Service
Requesting Service
First follow the instructions in the troubleshooting section (p.21 to p.24).
If the error is not corrected, contact our sales agent.
We will need to know:
The Model ................ (check the rating plate)
*See p.4 for the location of the label
Date of purchase ..... (see the warranty)
Details of problem... (flashing error codes,
etc., in as much detail as possible)
Your name, address, and telephone number
Desired date of visit
*A request for service may be rejected if the water heater is installed
in a location where working on the unit may be dangerous. Contact a
plumber.
Warranty
A warranty registration card is included separately.
Be sure that the plumber, date of purchase and other necessary items are filled in.
Read the content carefully, and keep the warranty card in a safe place.
For repairs after the warranty period, there will be a charge on any service, and service will only
be performed if the unit is deemed repairable.
Period of Time for Stocking Repair Parts
Noritz will stock repair and maintenance parts for this unit for a minimum of seven years after
production has ceased.
Reinstallation
If you want to reinstall the appliance at a different location, confirm that the gas and power
supply indicated on the rating plate are available at the new location. If you are not sure,
consult the local utility company.
If you move to a region that uses a different type of gas, conversion and adjustment of the
appliance will be necessary. This work must be performed by Noritz and will be charged for
even during the warranty period.
25
Specifications
Specifications
•Specifications may be changed without prior notice.
• The capacity may differ slightly, depending on the water
pressure, water supply, piping conditions, and water temperature.
Item
Model Name
Type
Ignition
Operating Pressure
Minimum Flow Rate
Dimensions (Height) x (Width) x (Depth)
Weight
Water Holding Capacity
Connection Sizes
Power Supply
Materials
Safety Devices
Accessories
Installation
Air Supply/Exhaust
Water Inlet
Hot Water Outlet
Gas Inlet
Supply
Consumption
Casing
Flue Collar
Heat Exchanger
Specification
N-084M-DV
Indoor Wall Hanging
Direct Vent/Sealed Combustion
Direct Ignition
15-150 PSI
2.7 L/min. (0.7 GPM)
615mm (24.2") x 465mm (18.3") x 239mm (9.4")
63 lbs.
1.1L (0.3Gallon)
3/4"
3/4"
3/4"
120 VAC (60Hz)
NG:86W, LP:92W, Freeze Prevention 135W
Zincified Steel Plate/Polyester Coating
Stainless Steel
Copper Sheeting, Copper Tubing
Flame Rod, Thermal Fuse, Pressure Relief Valve,
Lightning Protection Device (ZNR),
Electric Leakage Prevention Device (GFCI), Overheat
Prevention Device, Freezing Prevention Device,
Fan Rotation Detector
Remote Controller, Remote Controller Cord,
Anchoring Screws
26
Item
Gas
Consumption
Maximum Hot Water Capacity
Capacity Range
Temperature Settings
Default Temperature Options
Performance
Maximum Performance
NG
LP
7°C (45°F) Rise 32L/min. (8.4 Gal./min.)
236,000 btuh
236,000 btuh
2.7-32L/min. (0.7-8.4 Gal./min.)
37-50°C (99-122°F) (In 1°C intervals),
55-80°C (131-176°F) (In 5°C intervals),
83°C (181°C ) (20 Options)
50,55,60,80°C (122,131,140,176°F)
(Original is 50°C (122°F))
Minimum Performance
21,000 btuh
21,000 btuh
External outfitting N-084M-DV-CA
011
072
016
071
020
070
003
007
010
001
012
072
009
026
015
027
072
017
025
006
004
005
019
003
070
035
034
013
014
070
073
27
External outfitting N-084M-DV-CA
Part Nos. Part Names Order Nos. Q'ty/unit
001 N-084M-DV-CA Front-SET-AS SKA7142 1
003 Front packing L AAP AAPL017 2
004 Lamp seal plate DEC DECK008 1
005 Connection diagram label EJM EJMK001 1
006 Caution label CA ENG EHU EHUK010 1
007 Caution label 2 EAU EAUK004 1
009 Plug insulation sheet CRU CRUK002 1
010 Exhaust box FF CZV CZVF001 1
011 Heat insulator CZV CZVL002 1
012 Exhaust joint packing DHN DHNL003 1
013 Wiring coupling BXK BXKA022 2
014 Grommet CXP CXPA026 2
015 Intake pipe packing EHK EHKL084 1
016 Intake pipe BCU BCUF021 1
017 Intake flange BCU BCUF022 1
019 Caution label CA1 EHU EHUK008 1
020 Caution label CA2 EHU EHUK009 1
025 Case FF EJM EJMA011 1
026 Air themistor-300 BWC BWCH003 1
027 Intake/Exhaust label EJM EJMK031 1
034 Junction box set EHU EHUA008 1
035 Junction box packing EHU EHUL002 1
070 Cross recessed round-head collar N-tapping screw 4X8
071 Cross recessed truss type3 EVERTIGHT tapping screw with PW 4X12
072 Cross recessed round-head collar N-tapping screw 4X10
073 Cross recessed round-head collar type3 EVERTIGHT tapping screw 4X12
28
Combustion unit and gas route N-084M-DV-CA
102
101
100
109
171
117
175
110
172
116
175
105
126
117
118
112111
115114
170
070
173
070
119
103
104
070
070
141
132
122
125
070
128
176
131
070
129
173
072
127
121
120
172
121
124
172
123
171
073
29
Combustion unit and gas route N-084M-DV-CA
Part Nos. Part Names Order Nos. Q'ty/unit
100 Combustion tube set EAC SET-V SBP7302 1
101 Flame rod DLK SET-V SBA7506 1
102 Plug fixing plate(for N) DLK DLKL012 1
103 Ignition plug Q(N) SET-V SBA7504 1
104 Burner sensor DLK SET-V SBA7505 1
105 Plug fixing plate(for N) DLK DLKC009 1
109 Suction air joint packing DHN DHNL002 1
110 Manifold set15 EDM SET-AS SBE7875 1<LPG>
Manifold set24 EDM SET-AS SBE7874 1<NGA>
111 Solenoid S16L CRU SET-AS SAQ7346 3
112 Solenoid S24L CRU SET-AS SAQ7406 1
114 O-ring S30 type 1A SAD6433 3
115 O-ring S-38 SAD6372 1
116 Manifold seal packing top CRP CRPL002 1
117 Manifold seal packing side CRP CRPL004 2
118 Manifold seal packing bottom CRP CRPL003 1
119 Fan motor DKE DKEF030 1
120 Manifold pipe set EDM EDME006 1
121 O-ring P25.5 SAB1512 2
122 Gas mech S24DQ CRP SET-V SAQ7708 1
123 O-ring JASO 2028A 8590109 1
124 Gas fitting 20A SET EJH EJHE001 1
125 Mounting plate for burner case DLT DLTC001 1
126 Main damper 11 CRP CRPC052 1
127 Conduit R10 EDM EDMJ006 1
128 Igniter CRP CRPJ002 1
129 High-voltage cord 470 SAC1229 1
131 Mounting plate for igniter EAC EACC011 1
132 Mounting plate for igniter DTJ DTJA015 1
141 Bell-mouse 44 CRU CRUC045 1
30
170 Cross recessed round-head type3 EVERTIGHT tapping screw 5X16
171 Cross recessed hexagon head machine screw M4X8
172 Cross recessed round-head machine screw M4X8
173 Cross recessed round-head N-tapping screw 4X8
175 Cross recessed round-head SPAKmachine screw with guide M4X12
176 Cross recessed round-head collar N-tapping screw 4X12
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