Noritz N-063S Installation Manual

Owner’s Guide and

Installation Manual

Model N-069M

N-063S

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

SAQ8976-4

Rev. 12/05

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

*SAQ8976 T*

Contents

Contents ........................................................................................................		2
Owner's Guide
Important Safety Information .......................................................................		3
General Parts
Main Unit ....................................................................................................		7
Remote Controller ....................................................................................		8
Initial Operation ...........................................................................................		10
How to Use (Using the remote controller)
Muting the Remote Controller .................................................................		11
Setting and Using the Water Heater ........................................................		12
Flow Meter Alarm ......................................................................................		14
How to Use (Not using the remote controller)
Setting and Using the Water Heater ........................................................		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 for N-069M only ........................................................		31
Hot-water feed route for N-063S only ........................................................		32
Electronic control unit .................................................................................		34
Electronic control unit, Remote controller and Attached set ..................		35
Installation Manual ......................................................................................		36
1.	Included Accessories ............................................................................	37
2.	Optional Accessories ............................................................................	37
3.	Quick Connect Multi System Installaion .............................................	38
4.	Before Installation .................................................................................	39
5.	Choosing Installation Site ....................................................................	39
6.	Installation Clearances .........................................................................	41
7.	Installation ..............................................................................................	44
8.	Vent Pipe Installation (Indoor Installation Only) .................................	45
9.	Gas Piping ..............................................................................................	48
10.	Water Piping ...........................................................................................	50
11.	Plumbing Applications ..........................................................................	51
12.	Electrical Wiring ....................................................................................	52
13.	Maintenance ...........................................................................................	56
14.	Trial Operation .......................................................................................	56
15.	Dimensions ............................................................................................	58
Remote Controller Installation Guide .......................................................		61

2

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				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
	Warning death when ignored.
	Caution				Denotes content that may result in bodily injury and physical
					damage when ignored.
	Remarks				The content following this icon is necessary to understand for safe
					and easy use of this water heater.
	Other icons
	Electric				High	Be sure			Ground.
	Shock.				Temperature.	to do.
	Prohibited				No flame.	Don’t			Don’t	Don’t touch
									disassemble	with a wet
						touch.
									the equipment.	hand.

Danger

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.

Do not use the water heater if

the exhaust pipe is displaced, has holes, or is corroded.

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.

(Continued)

3

Important Safety Information-2

(Continued)

Do not turn off the water heater or change the water temperature while someone is bathing.

Do not place combustibles such as laundry, newspapers, oils etc. near the heater or the exhaust vent terminal.

Exhaust vent terminal (indoor

installation)

Unit

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.).

Min. 3" from vent pipe

Left side:

Min. 2" Right side:

Min. 2"

Front:

Sug. 24"*

*Indicates suggested clearances for maintenance.

Do not place or use a spray can near the heater or the exhaust vent terminal.

[When installing indoors] Check the air supply vent for dust or obstructions.

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.

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.

4

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 in a seperate area that is supplied with fresh air from outdoors.

Do not install in locations where excessive dust or debris will be in the air.

5

Important Safety Information-3

	frequently as required by the quality of				Do not disassemble the remote controller.
	your local water.
					Do not use benzene, oil or fat detergents
	Keep the area around the unit clean.				to clean the remote controller.
					This may cause deformation.
	If boxes, weeds, cobwebs, cockroaches etc. are in
	the vicinity of the unit, damage or fire can result.				Do not get the remote controller wet.
		Remark
	Do not drink water that has been inside the				This unit is only approved for installation
	unit for an extended period of time. Do not				up to 4500 ft. above sea level.
	drink the first use of hot water from the				For installations at higher elevations, contact Noritz
	unit in the morning.
					America for Instructions.
	Clean the filter on the water inlet as
					Although it is water resistant, too much water can
					cause damage.
	Do not install the equipment where the
					Do not splash water on the remote
	exhaust will blow on walls or windows.
					controller. Do not expose the remote
					controller to steam.
	Treat hard, acidic or otherwise impure				Do not locate the remote controller near stoves or
					ovens, this may cause damage or failure.
	supply water with approved methods to
	ensure full warranty coverage.
					Preventing damage from freezing ( p.17)
	Problems resulting from scale formation				Damage can occur from frozen water within the
	are not covered by the warranty.				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.				Take necessary measures to prevent
					freezing of water and leakage of gas when
	Do not run water through the unit when				leaving the unit unused for long periods of
					time. ( p.18)
	unit is not on.
	When discharging hot water, make sure the unit is
	ON.				If it is snowing, check the air inlet, exhaust
	If water is run through the unit with the unit
					gas vent and exhaust vent terminal for
	OFF, water may condense inside the unit and cause
					blockage.
	incomplete combustion or damage to the internal
	electrical components.
	For single-handle fixtures or valves, discharge
					Do not use parts other than those specified
	water setting the handle completely
					for this equipment.
	to the water side.

6

General Parts

Main Unit

Indoor/Outdoor Wall Mounted, Power Vented Model

Flue Collar

Front Cover

Air Inlet

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.

7

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 controlset at 110°F.

8

Display

The illustration below shows the remote controller display. 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)

What is actually displayed

Temperature Setting

(Ex.: 110°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)

9

Initial Operation

Before the first use of your water heater, make the following preparations.

Follow steps 1 through 4.

1 Open the water supply valve.

CLOSED

OPEN

2 Open a hot water fixture to confirm that water is available, and then close the fixture again.

Hot water fixture

3 Open the gas supply valve.

4 Turn on the power.

10

How to Use (Using the remote controller)

Muting the Remote Controller

			The remote controller will emit a sound
			when any button is pushed. This sound
		1	can be muted if it is desired.
			* Initial factory setting is with sound

With the remote controller 1 off, hold the Power On/Off

Button for five seconds.

Muted	Sound
No sound	Tone sounds
after 5 sec.	after 5 sec.

The flow meter alarm cannot be muted.

11

How to Use (Using the remote controller)

Setting and Using the Water Heater

2	(Starting with the Power Off)
1	1	Press the Power
		On/Off Button.
		On
	The temperature will be
	displayed on the remote
	control thermostat.
	On

Previous set temperature (Ex.: 110°F)

Caution

To prevent scalding:

High Temperature

Temperatures above 125 °F can scald.

•Check the water temperature by hand before bathing or showering.

•When setting the unit to 125°F or higher, the temperature display will flash for 10 seconds as a high temperature warning.

•Take caution when using the unit again after setting to 125°F or higher. Always check the set temperature before use.

•Do not allow anyone to change the water temperature while hot water is running.

Remote Controller Display

Flashes for 10 sec

12

	Set temperature.			Turn on hot		Turn off the hot
2	Always check the	)		3 water.		4 water.
	temperature setting
	(before use.

Hot

Cold

Check the indicator lights.

On

Off

Water temperature

The temperature settings below are examples. The temperature setting
(°F: necessary depends on the usage, the length of piping and the time of year.)
100	105	110	115			120	125	130	135	140	145	150	160	170	176
Washing	Shower, hot water									High temperature				Only N-069M
dishes, etc.	supply, etc.

If fixtures incorporate mixing valves, set the temperature higher than usual.

*Initial factory setting is 110°F

*For most residential applications, the recommended setting temperature is 120°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.

13

How to Use (Using the remote controller)

Flow Meter Alarm

2,3

1

3

(Starting with the power off)

	Preparation	Press the Power
		1 On/Off Button
	1. Plug the bath drain.	On

The temperature will be displayed on the remote control thermostat.

On

Previous set temperature (example:110°F)

Set temperature.

2 Always check (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 (°F: temperature setting necessary will depend on the usage, )

the length of piping and the time of year.

100	105	110	115	120
Warm	Warmer		Hot

* Initial factory setting: 110°F

Adjust flow meter	4
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: 10 - 60 (In 5 gallon intervals), 70 - 100 (In 10 gallon intervals), or 990 gallons.

Note: The alarm will not sound if it is set for 990 gal.

Flow meter setting will be flashing (ex. 45 gal.)

*The level can only be adjusted while the indicator is flashing.

*After ten seconds, the remote

will again display the temperature.

Turn on hot water.

On

If the flow meter alarm is being used to indicate when a tub is full:

Turn off the hot 5 water when the

alarm sounds.

The alarm will sound when the set level has been reached. Stop the water.

Note: The alarm will not sound if it is set for

990gal. Off

•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 (Not using the remote controller)

Setting and Using the Water Heater

The factory temperature setting is 120°F (fixed). Mix with cold water with a mixing valve or at the fixture for desired temperature.

1 Check that electrical power is connected.

2 Turn on hot water.

3 Mix for desired temperature.

Hot	water

scalding.

Water

Temperature

4 Turn off the hot water.

The electrical power does not need to be disconnected between uses.

If you want to the temperature to be changed to 130°F or 140°F, contact the installer or Noritz.

WARNING	To prevent scalding.

Check the temperature of the running hot water before using. Temperatures above

High Temperature	°
	125 F can scald instantly.

16

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 plug is unplugged. 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*. <Only using the remote controller>

(outside temperature including wind chill factor less than 5°F)

Hot Water Fixture

This method can protect not only to the heater, but also to the water supply, water piping and mixing valves.

1. Turn off the power.

2. Close the gas supply valve.

1/4" thick

3. Open a hot water fixture, and keep a small stream of hot water running. (400cc/minute or about 1/4" thick.)

* If there is a mixing valve, set it to the highest level.

* When linking multiple units, discharge water equivalent to 400 cc/minute per unit.

4. The flow may become unstable from time to time. Check the flow 30 minutes later.

* In general, it is not advisable to run water through the unit when it is OFF (see p. 6), but in this case freeze prevention is more important.

* 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
					To avoid burns, wait until the equipment cools down
					before draining the water. The appliance will remain hot
					after it is turned off.
	High Temperature

Drain water into a bucket to prevent water damage.

1. Close the gas valve.

2. (1)	Turn the power on. <Using the remote controller>
(2)	Turn and leave open the hot-water tap for more than 1 minute and close.
	* If multiple units are being used, drain one minute for each unit.	Fixture

*An 11 Error Code may appear on the remote controller.

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.	Fixture
5.	Open all drain plugs and drain the water out
	of the unit.
6.	When the water is completely drained, replace all drain		Drain Plugs
	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.10 “Initial operation”, steps 1 through 4.

18

Regular Maintenance-1

Periodic Inspection

	Caution
					To avoid burns, wait until the equipment cools down
					before draining the water. The appliance will remain
					hot after it is turned off.
		High Temperature

Check	For laundry, newspaper, timber,	Check	For dust and soot in
	oil, spray cans and other		the exhaust vent or
	combustible materials. ( p.4 )		exhaust vent terminal.
Check	For abnormal sounds	Check	For dust or debris in
	during operation.		the air inlet.
Check	For abnormalities in
	external appearance,
	discoloration or flaws.
Check	For proper operation of
	pressure relief valve.
Check	For water leaks from the
	equipment and piping.

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.

1.Close the water supply valve.

2.Open all hot water fixtures.

3.With a bucket ready, remove the inlet and outlet drain plugs (about 0.2 gal. 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) and close the drain plugs.

(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).

Inlet

Packing

Drain Plug

(with filter)

Water Supply

Valve

Optional Maintenance

Lsolator Exp (IK-WV-1)

Hot Water
Service Valve
Pressure Relief Valve	Cold Water
	Service Valve

*Isolator Exp kits may be purchased as an accessory from Noritz (Part #IK-WV-1).

They allow for 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.

Drain	Water Intlet
	Water Outlet

20