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TANKLESS GAS WATER HEATER
Owner’s Guide
Models : NC1991-OD
NC1991-DVC
FOR USE IN COMMERCIAL APPLICATIONS.
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
fl
ammable 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
fi
re department.
- Installation and service must be performed by a quali
fi
ed installer, service agency or the gas supplier.
CERTIFIED
R
Thank you for purchasing this Noritz Tankless Gas Water Heater.
Before using, please:
Read this manual completely for 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.
Installation must conform with local codes, or in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its products without notice.
Low NOx Approved by SCAQMD
14 ng/J or 20 ppm
(Natural Gas Only)
SBA8883-1
Rev. 03/13
NORITZ America Corporation
*SBA8883*
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 four categories. Closely observe these warnings; they are critical to your safety.
Icons warning of risk level
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
CAUTION CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.
Electric
Shock.
Prohibited
High
Temperature.
No flame.
Be sure to do.
Don’t touch.
Ground.
Don’t disassemble the equipment.
Don’t touch with a wet hand.
DANGER
Vapors from fl ammable liquids will explode and catch fi re causing death or severe burns.
Prohibited
Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater.
Keep fl ammable products:
1. Far away from the water
heater.
2. In approved containers.
3. Tightly closed.
4. Out of children’s reach.
Vapors:
1. Cannot be seen.
2. Vapors are heavier than air.
3. Go a long way on the fl oor.
4. Can be carried from other rooms
to the main burner by air currents.
Hot Water Heater temperatures over 125°F (52°C) can cause severe burns instantly or death from scalding.
Prohibited Children, disabled and elderly are at the highest risk of being scalded.
Feel water temperature before bathing or showering.
Temperature limiting valves are available, ask professional person.
(Continued)
(Continued)
Prohibited
[NC1991-OD]
Do Not Install Indoors.
This will cause carbon monoxide poisoning and a potential fire hazard.
Indoor
Prohibited
Do not allow anyone to change the water temperature while hot water is being used.
To prevent scalding, do not change the water temperature to a higher setting.
Prohibited
[NC1991-DVC]
Do not use the water heater if the concentric pipe is displaced, has holes, is clogged or is corroded.
WARNING
No flame.
A. This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand.
B.
BEFORE OPERATING smell all around the water heater area for evidence of leaking gas. Be sure to smell next to the fl oor because some gas is heavier than air and will settle on the fl oor.
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 fi re department.
C. Use only your hand to turn the gas valve knob. Never use tools. If the knob will not turn by hand, don’t try to repair it. Call a quali fi ed service technician.
Force or attempted repair may result in a fi re or explosion.
D. Do not use this water heater if any part has been under water. lmmediately call a quali fi ed service technician to inspect the water heater and to replace any damaged parts.
Be sure to do.
Be sure to do.
Prohibited
High
Temperature.
When a gas leak is noticed:
1. Stop use immediately.
2. Close the gas valve.
[NC1991-DVC]
3. Open windows and doors.
If you detect abnormal combustion or abnormal odors, or during an earthquake, tornado or fi re:
1. Turn off the hot water supply.
2. Turn off the power to the water heater.
3. Turn off gas and water supply valve.
4. Call the nearest Noritz agent.
Explosion Hazard ;
If the temperature and pressure relief valve is dripping or leaking, have a quali fi ed service technician replace it.
Do not plug or remove the valve.
Failure to follow these instructions can result in fire or explosion, and personal injury or death.
Check the temperature of the running hot water before entering the shower.
Check the temperature before stepping into the bath tub.
(Continued) 3
4
Important Safety Information
-
2
(Continued)
WARNING
Prohibited
Do not place the unit or the fl ue terminal in an indoor environment by means of adding walls and ceiling (Do not enclose using corrugated sheets, etc.)
Flue terminal
Prohibited
Carbon Monoxide Poisoning Hazard. Do not install this water heater in a mobile home, recreational vehicle or on a boat.
Prohibited
Do not use combustible chemicals such as oil, gasoline, benzene etc. in the near the heater or the fl ue terminal.
Unit
Carbon monoxide poisoning or fire may occur as a result.
Prohibited
Do not store or use gasoline or other fl ammable vapors and liquids in the vicinity of this or any other appliance.
Do not place or use a spray can near the water heater
or the fl ue terminal.
Prohibited
Prohibited
[NC1991-DVC]
Do not place outdoors
Rain may enter the unit or the burner fire may be blown by the wind, causing malfunction or fire as a result.
Outdoor
Be sure the gas/power supplied matches the gas on the rating plate.
Be sure to do.
Ex. For Natural Gas (NC1991-OD)
Be sure to do.
Leave the proper clearance between the water heater and nearby objects
(trees, timber, boxes with fl ammable materials etc.).
Upper:
[NC1991-OD]
Min. 36" (900mm)
Left side:
Min. 6" (150mm)
Front:
Sug. 24" (600mm) *
Right side:
Min. 6" (150mm)
[NC1991-DVC]
Upper: Min.
12" (300mm)
Sug. 3" (75mm) from concentric pipe*
Left side:
Min. 2" (50mm)
Right side:
Min. 2" (50mm)
Front:
Sug. 24" (600mm) *
*
Indicates suggested clearances for maintenance.
Prohibited
Do not place combustibles such as laundry, newspapers, oils etc. near the heater
or the fl ue terminal.
Flue terminal
Unit
Be sure to do.
Installation and service must be performed by a quali fi ed installer, service agency or the gas supplier.
Prohibited
If this unit will be installed in a beauty salon or other location where hair spray or aerosols will be used, locate the unit in a separate area that is supplied with fresh air from outdoors
.
Prohibited
Do not use hair spray or spray detergent in the vicinity of the heater.
Prohibited
Do not allow small children to play unsupervised in the bathroom.
Do not allow small children to bath unsupervised.
(Continued)
(Continued)
Do not touch the power cord with wet hands.
Don’t touch with a wet hand.
Electric
Shock.
Be sure to do.
Consult the nearest Noritz agent if the water heater location needs to be changed.
Don’t disassemble the equipment.
Contact a quali fi ed service technician for any necessary repairs, service or maintenance.
Be sure to do.
Contact Noritz before using with a solar pre-heater.
California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm.
This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself.
The gas conversion kit shall be installed by a quali fi ed service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in the instructions must be followed to minimize the risk of fi re or explosion or to prevent property damage, personal injury, or death.
The quali fi ed service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as speci fi ed in the manufacturer’s instructions supplied with the kit.
Ground.
CAUTION
Be sure to electrically ground the unit.
Do not turn off the water heater while someone is bathing.
Prohibited
Keep power cord free of dust.
Be sure to do.
Prohibited
Do not cover the water heater and the fl ue terminal, store trash or debris near it, or in any way block the fl ow of fresh air to the unit.
Prohibited
Do not use the water heater for other than hot water supply, shower and bath.
Prohibited
Do not use a broken or modi fi ed power cord. Do not bind, bend or stretch power cords.
Do not scratch, modify, or subject them to impact or force.
Prohibited
Do not install in locations where excessive dust or debris will be in the air.
Don’t touch.
Do not touch the exhaust vent or the fl ue terminal and concentric pipe during or immediately after operation of the water heater.
[NC1991-OD] [NC1991-DVC]
Be sure to do.
To prevent burns or scalding, turn off the power button and wait until the equipment cools before per forming maintenance.
5
6
Important Safety Information
3
CAUTION
Do not drink water that has been inside the unit for an extended period of time. Do not drink the fi rst use of hot water from the unit in the morning.
This unit is only approved for installation up to 4500 ft. (1350m) above sea level.
For installations at higher elevations, contact Noritz
America for Instructions.
Clean the fi lter 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 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.
It is not water resistant, water can cause damage.
Do not install the equipment where the exhaust will blow on walls or windows.
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.
Problems resulting from scale formation are not covered by the warranty.
Check ignition during use and extinction after use.
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.32)
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.
Take necessary measures to prevent freezing of water and leakage of gas when leaving the unit unused for long periods of time. ( p.33)
Do not run water through the unit when unit is not on.
When discharging hot water, make sure the unit is ON.
If water is run through the unit with the unit
OFF, water may condense inside the unit and cause incomplete combustion or damage to the internal electrical components.
For single-handle fixtures or valves, discharge water setting the handle completely to the water side.
If it is snowing, check the air inlet, exhaust vent and fl ue terminal for blockage.
Do not use parts other than those speci for this equipment.
fi ed
Contents
Important Safety Information .......................................................................
2
Contents .........................................................................................................
7
RC-9018M Operation Overview .................................................................... 8
Initial Operation
............................................................................................ 10
General Parts
Main Unit ...................................................................................................
11
Remote Controller ....................................................................................
12
System
14
Clock Adjustment ...................................................................................... 16
Using the Water Heater .............................................................................
17
Setting Hot Water Temperature ................................................................ 18
Automatic Water Heater “ON” or “OFF” Operation
............................... 20
Locking the Remote Controller................................................................
22
Customizable Settings <Misc settings>..................................................
23
For System [Rcrc]
Enabling Automatic Recirculation Operation ......................................... 26
Manually Starting Recirculation Operation ............................................
27
Setting the Recirculation System Operation Timer ............................... 28
Single Water Heater Only
Flow Meter Alarm ...................................................................................... 30
Preventing Damage from Freezing .............................................................
32
Regular Maintenance
................................................................................... 35
Troubleshooting
37
Follow-up 42
Speci fi cations ............................................................................................... 45
Default
47
7
8
RC-9018M Operation Overview
Basic operation
It is possible to automatically turn the water heater
“ON” or “OFF”.
Automatically turned "ON"
Automatically turned "OFF" p.20
It is possible to lock remote controller operation.
p.22
[
For recirculation systems (
It is possible to circulate hot water only during preferred times of day.
)] p.28
[When using only one water heater:]
It is possible to set the remote controller to alert the user when the bathtub has reached a preset fill volume to prevent overfilling.
i i p.30
Power Saving Mode
The initial setting is set to "Powersave dsply : No-1"
If you set "Powersave dsply" to "Yes" ( p.23), unnecessary power consumption by the remote controller is prevented. If approximately ten minutes pass without using hot water or without pressing a button, the display of the remote controller turns off.
The display turns off
(operation is "ON")
* If you use hot water or press a button, "Powersave dsply" is released.
If you press the PROG button only once, "Powersave dsply" is released and the automatic program function will operate.
* If the setting temperature is set to 125°F/55°C or more, "Powersave dsply" will not function to prevent accidental scalding.
* If "Recirc" is operating, "Powersave dsply" will not function.
This setting is adjustable p.23
User Preferences
The remote controller can be customized based on the preference of the user in the following ways:
The set temperature can be restricted to a maximum level to prevent high temperature settings from being selected.
The clock display can be shown even though the power
ON/OFF
button is set to "OFF".
The remote controller display can be turned off to save power.
Can I sa ower ve hat time is it now
Adjusting the Maximum
Output Temperature p.23
The brightness of the remote controller can be adjusted for better visibility.
Power Saving Modes p.23
The remote controller can be muted so that it does not emit a tone when a button is pressed.
Pi
The remote controller can be muted so that it does not emit a tone when an error occurs.
i i
Remote Controller Display
Brightness Settings p.24
Muting the
Remote Controller p.24
Error Tone Settings p.24
Additional Settings
Draining the water heater (freeze prevention).
Restoring default remote controller settings.
p.25 "Draining the Water Heater"
p.25 "Restoring Default Settings"
9
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
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.
Do not touch with wet hands.
(Ex. NC1991-OD)
General Parts -1
Main Unit
NC1991-OD
(Outdoor Wall Mounted, Power Vented Model)
Exhaust Vent
Front Cover
Air Inlet
Pressure Relief Valve
Gas Supply Valve
NC1991-DVC
(Indoor Wall Mounted, Power Vent/Sealed Model)
Concentric Pipe
Front Cover
Water Drain Valve
(with Water Filter)
(Inside Water Inlet)
( p.36)
Water Supply Valve
Pressure Relief Valve
Gas Supply Valve
* The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
Water Drain Valve
(with Water Filter)
(Inside Water Inlet)
( p.36)
Water Supply Valve
11
12
General Parts -2
Remote Controller (RC-9018M)
The remote controller will emit a tone when a button is pressed.
Prog Button / Indicator (Red)
Activates the automatic water heater power
“ON” or “OFF” setting as determined by the user selected schedule. ( p.21)
Power ON /OFF Button
/ Indicator (Green)
For turning the water heater on/off.
Alarm Off Button
/ Indicator (Red)
Stops the tone that is emitted when an error occurs. ( p.41)
Speaker
Menu Button
* Use to change system settings or to return to the home screen.
* If you press the menu button and press the temperature setting buttons,
is sometimes displayed, however, do not use this mode as it meant for installation or service personnel only.
Cover shown in the open position.
Back Button
Returns to the previous screen while making system settings or checking status.
Display Screen
( Next page)
Status Button
Check the status of the system or the number of installed units ( p.14)
Remote Controller
Part Number
The part number is printed on the surface of the cover.
Lock Button
Locks remote controller operation. ( p.22)
Enter Button
Confirms changes made by the user.
Hot Water Temperature
Setting Buttons
For setting the hot water temperature ( p.18), the flow meter alarm, and other settings.
Screen Display
* The screen display shown below is for illustration purposes only.
The actual display will vary depending on how the water heater is being used.
* After a button is pressed, the display will gradually become darker to prevent unnecessary power consumption by the remote controller.
Flame Symbol
The flame symbol is displayed during combustion when using hot water or recirculation functions.
Display for Temperature Setting
During normal operation, the set temperature is displayed.
Display for High Temperature
Displays when the set temperature is 125°F/55°C (131°F) or higher.
( p.19)
Display for Recirculation Operation
* For systems that use recirculation operation, the symbol is displayed when the power ON/OFF button is set to "ON".
* It is displayed during the recirculation operation. ( p.18)
Locked Display
The lock symbol is displayed when the remote controller is locked. ( p.22)
Temperature Setting
(Ex.: 110°F)
Clock Display
(Ex.: AM10:15)
Normally the clock display is not shown when the power ON/OFF button is "OFF".
* This setting can be changed so that the clock is displayed
even when the power button is turned "OFF". ( p.23)
Error Code
A number will flash if a failure occurs. ( p.41)
Recirculation Timer
The clock symbol is displayed when the recirculation timer is activated. ( p.29)
Note: As shipped from the factory, the remote controller is set to display in °F and gallons.
To adjust the display to °C and liters, refer to the Installation Manual.
What is the home screen?
The home screen is displayed when the button is "ON".
Normally, the hot water temperature and the clock, etc. are displayed.
<Home Screen Example>
13
System Check
If you press the button, you can check the status of the system
14
(Display Screen Example [System [Rcrc] ])
Cover shown in the open position.
System Displayed on the Remote Controller
System Description
Water heater only operation.
* Water heater and recirculation operation.
* During recirculation operation, hot water is always circulated in the piping to provide instant hot water when a fixture is opened.
[If you set the button to "ON", is displayed. (If "synchro ON/OFF"
is set to "ON". ( p.26))]
* Water heater combined with a storage tank
operation.
* If a recirculation system is also installed,
hot water is always circulated in the piping
to provide instant hot water when a fixture
is opened.
[If you set the button to "ON", is displayed.]
Depending on the configuration of your system, not all functions may be used.
General System Diagram
* The number of water heaters, fixtures, and
pumps will vary depending on the configuration of the hot water system.
ater heater hen you start using the system, cold water in the i ing must be discharged before receiving hot water.
Applicable Remote
Controller Functions
Functions other than those shown on pages
26 to 29 can be used.
ater heater ot water is circulated in the i ing.
um ater heater ot water is circulated to the tank.
ot water storage tank um um
Instant hot water is available.
Instant hot water is available.
All functions can be used.
Functions other than those shown on pages
26 to 31 can be used.
15
For All S stems
Clock Adjustment
Cover shown in the open position.
Screen Display Operation
1
Press the button inside the cover.
2
Press the button.
3
1) Use the buttons to
1)
reset the clock.
2) Press the button
2) to complete the clock setting.
(Ex: AM10:15)
The screen returns to the previous screen.
Description
* This adjustment can be made regardless of whether the button is ON/OFF.
* The time changes in 1-minute increments with each press o f t h e b u t t o n , a n d t h e n i n
10-minute increments if the button is kept pressed down.
* If the display is left untouched for approximately 20 seconds without pressing the button , the setting will be completed. When the button is turned ON, the home screen will be restored.
16
* In the event of a power outage or after disconnecting power to the water heater, when power is restored, the clock on the display screen will show " - : - - " and the clock will need to be reset.
* Normally, when the button is turned OFF, the clock display disappears, but it is possible to display the clock when the button is turned OFF by changing a setting. ( p.23)
For All S stems
Using the Water Heater
*
If is displayed, hot water will be discharged at the temperature of the storage tank.
1
Operation button is "ON".
Screen Display Description
For systems with recirculation operation,
is displayed here.
Chec
(Ex.: 110°F)
* The indicator is lit.
* The previously set hot water supply temperature is shown.
[For systems with recirculation operation]
* If you set the button to "ON",
recirculation operation is automatically started.
(If "Synchro ON/OFF" was set to "ON".( p.26))
* The setting temperature displayed may vary from the actual temperature at the fixture depending on conditions such as season or length of piping.
Lit during com ustion 2 Turn on hot water.
Turn off the hot water
Turn off hot water.
Unlit * During operation, the symbol may be continuously lit.
DANGER
High Temperature
To prevent scalding :
Hot Water Heater temperatures over 125°F (52°C) can cause severe burns instantly or death from scalding.
• Children, disabled and elderly are at the highest risk of being scalded.
Feel water temperature before bathing or showering.
Temperature limiting valves are available, ask a professional person.
• When setting the unit to 125°F / 55°C (131°F) or higher, “Hi temp” will flash for 10 seconds and emit a tone as a high temperature warning.
• Take caution when using the unit again after setting to 125°F (52°C) or higher. Always check the set temperature before use.
• Do not allow anyone to change the water temperature while hot water is running.
17
18
For All S stems
Setting Hot Water Temperature
*
If is displayed, hot water will be discharged at the temperature of the storage tank.
Operation
1 button is "ON".
Cover shown in the open position.
Screen Display
(Ex.: 110°F)
2
Set the temperature using the buttons inside the cover .
(Ex.: 105°F)
Description
* The indicator is lit.
* The previously set hot water supply temperature is shown.
Temperature Setting Options
When using ° F mode: ( °F: The temperature settings below are examples. The temperature setting necessary depends on the usage, the length of piping and the time of year.
)
100 105 110 115 120 125 130 135 140 145 150 160 170 185
Washing dishes, etc.
Shower, hot water supply, etc.
High temperature
When using
°
C mode:
*Initial factory setting is 110°F
( °C (°F): The temperature settings below are examples. The temperature setting necessary depends on the usage, the length of piping and the time of year.
)
37 38 39 40 41 42 43 44 45 46 47 48 50 55 60 65 70 75 80 85
(99) (100) (102) (104) (106) (108) (109) (111) (113) (115) (117) (118) (122) (131) (140) (149) (158) (167) (176) (185)
Washing dishes, etc.
Shower, hot water supply, etc.
High temperature
*Initial factory setting is 40°C (104°F)
If fixtures incorporate mixing valves, set the temperature higher than usual.
* For applications that occasionally require a higher temperature setting, locate the remote controller in a convenient location.
* Consult local codes for minimum operating temperatures.
< Display when high temp is set >
Blinks for approximately 10 seconds Lit.
(Ex.: 125°F)
• Hot water temperatures shown are approximate and may differ from the actual temperature at the fixture depending on external factors such as the season and length of piping in the system.
• When low temperatures are set (for washing dishes, etc.), if the incoming water temperature is already quite high, it may be difficult to ensure the outgoing water temperature is as per the setting.
• Please check the temperature displayed before using any hot water.
Be especially careful using hot water after the set temperature has been changed.
• When the hot water temperature is adjusted using thermostat controlled water mixing valves, set the temperature on the remote controller approximately 20°F (10°C) higher than the required temperature to ensure the appropriate fixture temperature.
19
For All S stems
Automatic Water Heater “ON” or “OFF”
Co er shown in the open position
* I ou set the time to turn ON or OFF the utton the utton is automaticall turned ON or OFF at the set time e er turning utton ON
* It is also possi le to set onl “ON” or
“OFF” operation
* For recirculation s stems circulation is started or stopped according to the utton condition ON or OFF
Set the time to turn ON or OFF the
Operation Screen Displa
utton automaticall
Description
This e ample descri es setting the ON time and OFF time to 1 : am and : pm respecti el
Preparation 1 Chec that the current time is properl set
Setting the time p 1
2 Chec the utton is set to OFF
1
1 Press the
inside the co er
Select Set PROG utton
1
2
using the uttons
* ou can set the time regardless if the button is or
* The reviously set Start time and nd time are dis layed.
.
2 Press the
2
1 Set the ON time to
AM1 : using the uttons utton
1
2
20
2 Press the utton to complete the setting
3
1 Set the OFF time to
PM : using
1
the uttons 2
2 Press the utton to complete the setting
* The time changes in 1 minute increments with each ress of the button, and then in 1 hour increments if the button is ke t ressed down.
* If the revious setting is , ress the button without setting Start time .
* If you do not want to set the Start time , select located between A 11
* The time changes in 1 minute increments with each ress of the button, and then in 1 hour increments if the button is ke t ressed down.
* If the revious setting is , ress the button without setting nd time .
* If you do not want to set the nd time , select located between A 11
Operation
Hint or operation ollwing this rocedure allows for automated control of water heater o eration without user interaction.
* The setting time shown on the dis lay of the remote controller is for exam le ur oses only.
E 1: Both ON and OFF
unctions are automated
E 2: Onl “ON” unction is
automated
E 3: Onl “OFF” unction is
automated
1
A
Automatically turned
8
Automatically turned
Operation
4 Chec Set is selected and then press utton to con irm all settings
1
A
Automatically turned your desired time anually turned your desired time anually turned
Screen Displa
8
Description
Automatically turned
* If you do not ress button, the time setting is not com leted.
* If you want to change / time , select Reset and then ress the button, return to ste 2.
Operation
1 utton is ON
Acti ate Automatic Operation
Screen Displa is lay xam le
Description
* ou can activate automatic o eration regardless if the button is or .
* indicator is lit when activated.
* Start time and nd time will be dis layed u on activation.
* If both the Start time and nd time are set to , the alarm
is dis layed.
To Deacti ate Automatic Operation utton is OFF
* The indicator is unlit.
* If the button is not set to , the water heater will automatically turn or at the set times.
* If there is a ower failure or ower is disconnected to the water heater, automatic o eration will be deactivated.
21
22
For All S stems
Loc ing the Remote Controller
B loc ing the remote controller the settings cannot e accidentall changed i a utton is pressed mista e
Operation
1
Press and hold or appro imatel
2 seconds to loc the remote controller utton
Co er shown in the open position
Screen Displa
I ou press these uttons while the remote controller is loc ed the “Loc ed” screen will appear
To Unloc the Remote Controller
Press and hold utton or appro imatel
2 seconds to unloc the remote controller
Description
* The o eration can be locked regardless if the
or .
button is
* The o erations of , ,
and buttons are locked.
* A roximately 3 seconds after locking
the remote controller, the dis lay will
return to the revious screen.
* A roximately 3 seconds after the locked screen a ears, the dis lay will return to
the revious screen.
* A roximately 3 seconds after unlocking
the remote controller, the dis lay will
return to the revious screen.
For All S stems
Customi a le Settings Misc settings -1
1
2
Ad usting the Ma imum Output
Temperature
The maximum out ut tem erature can be limited to revent discharging hot water at too high of a tem erature.
utton is OFF the co er Select
using the uttons
Displa Screen Power Sa ing Mode
[powersa e dspl ]
To conserve ower consum tion by the dis lay, it can be turned off com letely or set to only dis lay the clock when the ower / button is turned .
1 the co er Select
using the uttons
Press the utton
The isc settings screen a ears.
3 Select using the uttons and then press the utton
4 Change the
Press the utton
The isc settings screen a ears.
2
Select using the uttons and then press the utton
3
Change the x 18 or ahrenheit or Celsius C
3 8 C In 1 C intervals ,
8 C In C intervals
Initial setting 18 / 8 C
Setting completed x o 1
Yes: the displa will turn o and the cloc
will not e displa ed when the power
ON/OFF utton is turned OFF
No-1: the displa will not turn o and
the cloc will not e displa ed
when the power ON/OFF utton
is turned “OFF”
No-2: the displa will not turn o and the
cloc is displa ed when the power
ON/OFF utton is turned OFF efault setting o 1
Setting completed
To change other settings select the option and press the utton
To return to the home screen press the utton or let it sit or appro imatel 2 seconds
23
For All S stems
Customi a le Settings Misc settings -2
Ad usting the rightness o the displa screen when the remote controller is turned on
The dis lay screen can be brightened or darkened or the backlight can be turned off com letely.
Muting the remote controller
The remote controller can be muted so that it does not emit a tone when a button is ressed.
S stem dependent option
Error Tone Settings
The remote controller can be muted so that it does not emit a tone when an error occurs.
1
Press the utton inside the co er Select using the uttons
1
Press the utton inside the co er Select using the uttons
1
Press the utton inside the co er Select using the uttons
Press the utton
The isc settings screen a ears.
2
Select using the uttons and then press the utton
3
Change the setting using the uttons
Press the utton
The isc settings screen a ears.
2
Select using the uttons and then press the utton
3
Change the setting using the uttons
Press the utton
The isc settings screen a ears.
2
Select using the uttons and then press the utton
3
Change the setting using the uttons x ormal
Dar / Dim / Normal / Bright efault setting ormal
Setting completed x es
Yes / No efault setting es
Setting completed x es
Yes / No efault setting es
Setting completed
24
To change other settings select the option and press the utton
To return to the home screen press the utton or let it sit or appro imatel 2 seconds
Draining the Water Heater
Refer to age 33 for details.
Restoring De ault Settings
Select settings can be restored to the factory default conditions.
See items marked with a in the efault Settings section .
.
1 utton is OFF
2 the co er Select using the uttons
Press the utton
The isc settings screen a ears.
3 Select using the uttons and then press the utton
4 Select “YES” using the uttons
1
2 utton is OFF the co er Select
using the uttons
Press the utton
The isc settings screen a ears.
3 Select using the uttons and then press the utton
4 Select “YES” using the uttons
Press the utton Press and hold the utton or appro imatel seconds rain the water heater following the rocedures described on age 33.
To stop draining water rom the water heater
If you ress the button again when rain water and erating are alternately dis layed following ste s
2 to 3, the drain function will sto .
Setting completed
To change other settings select the option and press the utton
To return to the home screen press the utton or let it sit or appro imatel 2 seconds
25
26
For
Ena ling Automatic
Recirculation Operation
* To chec s stem status p 14
* When “s nchro ON/OFF” is set to “Yes” recirculation can e acti ated automaticall
* To change “s nchro ON/OFF” rom “Yes” to “No” ollow the same procedure as descri ed elow
Co er shown in the open position
Operation
1
1 Press the utton
inside the co er
Select Recirc menu
1
2
using the uttons
Screen Displa Description
* This ad ustment can be made r e g a r d l e s s o f w h e t h e r t h e button is / .
2 Press the
2 and press the
3
1 Press
2 Press the utton utton
1 utton
2
The screen returns to the revious screen.
* If the dis lay is left untouched
for a roximately 2 seconds without ressing the button, the setting will be com leted, and when the button is turned
, the home screen will be restored.
For
Manuall Starting
Recirculation Operation
Recirculation operation can e manuall stopped or started using this procedure
Co er shown in the open position
Operation
1
1 Press the utton
inside the co er
Select Recirc menu
1
2
using the uttons
Screen Displa Description
* ou can set this function if the button is .
2
2 Press the
using the
2 Press the utton
1 Select Recirc on/o uttons
1 utton
2 is lay when recirculation is set to
The screen returns to the revious screen.
* If the dis lay is left untouched for a roximately 2 seconds without ressing the button , the setting will be com leted.
is lay when the recirculation is set to
27
28
For
Setting the Recirculation S stem
Co er shown in the open position
* With the recirculation operation timer set hot water will e automaticall circulated in the hot water pipes
E en with this unction acti ated it ma ta e se eral minutes or hot water to e completel circulated through the plum ing s stem Set the timer to acti ate the recirculation s stem prior to the irst use o hot water to ensure hot water is instantl a aila le
* Multiple recirculation time periods can e set
* Until the timer is deacti ated p 29 the recirculation s stem will operate dail at the set times
* When the recirculation s stem is turned “OFF” the timer the water heater will still remain “ON” and can e used normall
Screen Displa Description Operation
This e ample descri es setting the recirculation s stem to operate etween : am - : am
Preparation Chec that the current time is properl set
Setting the time p 1
1
1 Press the utton inside the
1
co er Select Recirc menu using
2
the uttons
* ou can set the timer regardless if the button is or .
2 Press the utton
2 1 Select Recirc timer
using the uttons
1
2
2 Press the utton
1 3
1 Select AM : using the uttons
Here
2
2 Press the utton to complete the
“Start” time setting xam le of a dis lay
* The revious setting is dis layed.
* very time when you ress the button, the time changes by one hour.
To kee the current Start time
ress button without changing the Start time, and roceed to ste .
To add additional time eriods to the current
setting, or to cancel the revious setting
1 ress the button without setting Start time.
2 ress the button without setting nd time.
All .2 .
Operation Timer
Operation
4
1 Select AM : using
1 the uttons
2 Press the
2 utton to
complete the “End” time setting
Adding Additional Time Periods
1 Select Add using 1
the uttons
2
2 Press the utton
3 Select the time period ollowing
the procedures in Steps 3 to 4
Resetting All Time Periods
1 Select Reset using
1
the uttons
Screen Displa
2 Press the utton
2
All settings are cleared.
3 Ad ust the time period ollowing
the procedures in Steps 3 to 4
Press the utton to complete the time settings
Recirc timer and Recirc timer on are altenately dis layed on the menu a roximately 1 seconds
Lit
Description
* very time when you ress the button, the time changes by one hour.
Here
To kee the current
ress the button nd time without changing the nd time, and roceed to ste .
* ou can set multi le o eration
time eriods.
* The timer will not activate without ressing the button.
* If the time is not set, the time setting screen is dis layed .1 .
* ntil the timer is deactivated, the
recirculation system will o erate
daily at the set Start and nd
times.
1 Carr out steps 1 to 2
2 Select Cancelled xam le of home screen when the ower / button is turned
To Cancel the Recirculation S stem Operation Timer
1
using the uttons
2
3 Press the utton
The screen returns to the Recirc enu.
* If the button is , the screen returns to the home screen
in a roximately 1 seconds.
* If the timer is deactivated during a recirculation time eriod, recirculation will continue until it is sto ed using the rocedure shown on .2 .
29
Single Water Heater Onl Flow Meter Alarm
I the low meter alarm is eing used to indicate when a tu is ull:
• I an hot water is eing used esides what is going into the tu the alarm will sound e ore the tu is ull
• I there was water in the tu e ore the ill egan or i the water is not shut o manuall when the alarm sounds the tu ma o er low
• I there was water in the tu e ore the ill egan the temperature in the tu a ter it is ull ma e di erent rom the temperature setting
Screen Displa Description
Preparation
Operation
Con irm that the stopper is closed
Close the lid
* en the lid closest to the s out to allow for filling.
xam le of bathtub filled with hot water.
1 utton is ON
* The indicator is lit.
* The current setting tem erature is dis layed.
Chec
2
1 Press the utton inside the
1
co er Select Flow meter using
2
the uttons
* The current hot water filling volume is dis layed.
2 Press the utton x Alarm off
3 Ad ust the Flow Meter
1 Change the olume with our desired hot
water olume
2 Press the utton to
1
2
* The set hot water volume will
be stored in memory.
* The screen returns to the
home screen.
* If the dis lay is left untouched
for a roximately 2 seconds without ressing the button , the setting will be com leted and the home screen will be restored.
Fill Volume Options
30
1
4
1 2
1
2 3 3
12 14 1
4
1
4
2 22 24 2
7
3
9 1 gal
Alarm o
L
34 3 Alarm o efault setting Alarm off
Screen Displa
Lit during com ustion
Description Operation
4 Turn on hot water
When the athtu ills with the preset olume o water an alarm will sound alerting i i ou to shut o the water turn of
I the hot water temperature has een set so that it does not re uire mi ing set the mi ing al e to its highest setting
The hot water in the bathtub may become lukewarm if it is mixed with cold water at the fixture.
The highest temperature
* hy doesn t the flow meter alarm sound even if the bathtub is filled with water .3
* The alarm will continue to sound even if the button is ressed.
Turn o the hot water when the alarm sounds to pre ent o er illing
Hot Water Filling Temperature Options
The tem eratures settings below are only exam les. The tem erature setting necessary will de end on the usage, the length of i ing and the time of year.
1 arm
1 11 armer
11 ot
12
* Although the temperature can e set to 12 F / C or
higher do not set the temperature to 12 F / C or
higher as it can cause se ere urns instantl or death
37 3 39 4 41 42 43 44 4 4 47 4
99 1 1 2 1 4 1 1 1 9 111 113 11 117 11 arm armer ot
* Initial factory setting 11 or C 1
* The hot water filling tem erature is same as the setting tem erature.
* The setting tem erature dis layed may vary from the actual
tem erature at the fixture de ending on conditions such as
season or length of i ing.
31
32
Pre enting Damage rom Free ing-1
CAUTION
* amage can occur from fro en water within the device and i es even in warm environments.
Be sure to read below for a ro riate measures.
* Re airs for damage caused by free ing are not covered by the warranty.
Free ing is pre ented within the de ice automaticall the ree e-pre ention heater
Free ing cannot e pre ented when the power plug is unplugged Do not remo e the power plug rom the wall outlet ree ing will be revented regardless of whether the o eration switch is or .
* In normal o eration, free ing is revented within the device automatically unless the outside tem erature without wind is below 2 C for C1 1 or 3 3 C for C1 1 C.
* The free e revention heaters will not revent the lumbing external to the unit from free ing.
rotect this lumbing with insulation, heat ta e or electric heaters, solenoids, or i e covers.
If there remains a free ing risk, contact the nearest orit agent.
Ta e the measures elow or e tremel cold temperatures* utside tem erature including wind chill factor less than 2 C for C1 1 for C1 1 C.
or 3 3 C
This method can rotect not only the heater, but also the water su ly, water i ing and mixing valves.
1. Turn off the ower.
2. Close the gas su ly valve.
3. Open a hot water fixture/faucet, and keep a small stream of hot water
running. .1 gallon cc /minute or about .2 mm thick.
* If there is a mixing valve, set it to the highest level.
* hen linking multi le units, discharge water e uivalent to
.1 gallon cc /minute er 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 . , but in this case free e revention is more im ortant.
ot water fixture/faucet
.2 mm thick
* Remember to set mixing valves and fixtures to their original levels before using the unit again
to revent scalding.
* If there is still a risk that the unit will free e, drain the unit as shown on the next age.
If water will not
fl
ow because it is frozen
1. Close the gas and water valves.
2. Turn off the ower button.
3. en the water su ly valve from time to time to check whether water is running.
. When the water is flowing again, check for water leaks from the equipment and piping before using.
If the heater or the i ing is fro en, do not use the heater or it may get damaged.
CAUTION ress button.
igh Tem erature
To avoid burns, wait until the e ui ment cools down before draining the water. The a liance will remain hot after it is turned off.
rain water into a bucket to revent water damage.
Drainage Using the Remote Controller
1
1 button is .
2 ress the button inside the cover,
Select using the buttons.
ress the button.
The isc settings screen a ears.
3 Select using the buttons, and then ress button.
Select S using the buttons,
Manual Draining
1 Close the gas valve.
1 Turn the ower on/off button n .
2
2 Turn and leave o en the hot water fixtures/
faucets for more than
2 minutes and close.
ot water fixture/faucet
* If multi le units are being used, drain two minutes for each unit.
* An 11 rror Code may a ear on the remote controller.
This is not a malfunction of the unit. o not turn ower / Button .
3 Close the water su ly valve and disconnect the electrical ower su lied to the unit.
Do not touch with wet hands
2 Close the water su ly valve.
4 ully o en all hot water fixtures/faucets.
ot water fixture/faucet
3
I the water heater will not e used or a long period o time drain the water
rain the water as follows ully o en all hot water fixtures/faucets.
ot water fixture/faucet en all drain lugs and drain the water out of the unit.
4 en all drain lugs and drain the water out of the unit.
hen the water is com letely drained, re lace all drain lugs and close the hot water fixtures/faucets.
hen the water is com letely drained, re lace all drain plugs and close the hot water fixtures/ faucets.
Close the gas valve and disconnect the electrical ower su lied to the unit.
Do not touch with wet hands rain lugs x. C1 1 ach drain lug mignt not be visible if insulation is installed around the i ing.
33
34
Pre enting Damage rom Free ing-2
Turning the Unit Bac On
1. Check that all drain lugs are inserted.
2. Check that all hot water fixtures/faucets are closed.
3. ollow the rocedure on .1 Initial o eration , ste s 1 through .
Regular Maintenance-1
Periodic Inspection
CAUTION
Be sure to do.
To revent burns or scalding, turn off the ower button and wait until the e ui ment cools before erforming maintenance.
Chec or dust and soot in the exhaust vent or the flue terminal.
Chec or laundry, news a er, timber, oil, s ray cans and other combustible materials. near the heater or the flue terminal.
Chec or abnormal sounds during o eration.
Chec or abnormalities in external a earance, discoloration or flaws.
Chec or ro er o eration of ressure relief valve.
Chec or water leaks from the e ui ment and i ing.
x. C1 1
Periodic Maintenance
E uipment
i e the outside surface with a wet cloth, then dry the surface. se a neutral detergent to clean any stains.
Remote Controller
i e the surface with a wet cloth.
• o not use ben ene, oil or fatty detergents to clean the remote controller;
deformation may occur.
• The remote controller is not water resistant. ee it dry.
35
Regular Maintenance-2
Periodic Maintenance
Water Drain Val e 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 a oid urns wait until the e uipment cools down e ore draining the water
The appliance will remain hot a ter it is turned o
1. Close the water su ly valve.
2. Open all hot water fixtures.
3. ith a bucket ready, remove the inlet and outlet acking
Inlet
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 lugs.
Take care not to lose the acking.
7. Close all hot water fixtures.
8. en the water su ly valve and check that
water does not leak from the drain lugs or water drain valve (with water filter).
ater drain valve
(with water filter) ater Su ly alve
Isolation Val es x. C1 1
Optional Maintenance
36 ot ater
Service alve ressure Relief alve
Cold ater
Service alve rain ater utlet ater Intlet x. C1 1
* Isolation valves may be urchased as an accessory from orit .
They allow for full diagnostic testing and easy flushing of the system.
* The kit includes two full ort isolation valves and a ressure relief valve for the hot side.
Contact orit for more information.
Trou leshooting-1
nit does not attem t to ignite when water is running.
nit attem ts to ignite but fails
Initial Operation
• Check for reversed lumbing or crossed i es.
• Check the water drain valve filter. ( .3
• Reset unit and try again. There may be air in the gas line.
• ave a rofessional check the gas su ly ressure.
Temperature
ot water is not available when a fixture is opened.
• Are the gas and water su ly valves fully o en
• Is the water su ly cut off
• Is the hot water fixture/faucet sufficiently open?
• Is the gas being cut off by the gas meter
Can other gas devices such as stoves be used
• or Is there enough gas in the tank
Can other gas devices such as stoves be used
• Is the water drain valve filter clogged? ( .3
• Is the ower button turned on
• Is the water su ly cut off
• Is the heater fro en o water is available when a fixture is opened.
The hot water is not the correct tem erature.
• Is the hot water fixture/faucet sufficiently open?
ater takes time to become hot when turning the hot water fixture/faucet.
• ave you allowed enough time for the cold water in the i es to drain out
The water is too hot.
• Are the gas and water su ly valves fully o en
• Is the water tem erature setting a ro riate .18
• If the water su ly tem erature is high, it is ossible for the tem erature to be higher than the tem erature set on the remote controller.
• If only a small amount of hot water is demanded, it is ossible for the tem erature to be higher than the tem erature set on the remote controller.
The water is not hot enough.
• Are the gas and water su ly valves fully o en
• Is the water tem erature setting a ro riate .18
• If the amount of hot water re uired is very high, it is ossible for the tem erature to be lower than the tem erature set on the remote controller.
ecrease the amount of hot water assing through the unit and the tem erature should stabili e.
Continued
37
38
Trou leshooting-2
Continued
The water is cold when only a single fixture is open.
• The unit will not heat the water if the flow rate is less than
. gallons 2 er 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.
luctuations in hot water tem eratures.
• Set water tem erature at 11 to 12 or 8 C 118 to
C 122 F). This will allow you to use a higher flow of hot water thus meeting the minimum flow requirement of 0.5
2 /min. .
• Clean the water filter of any debris .3
Setting tem erature cannot rise.
• Is the maximum tem erature setting a ro riate .23
Amount o Hot Water
The amount of hot water at a certain fixture is not constant.
• When hot water is demanded at other fixtures, the amount available may be reduced. The maximum flow available from this unit is . tem erature rise.
28.2 /min. at a 2 C
• Pressure fluctuations and other plumbing conditions can cause the temperature and pressure at a fixture to be unstable, but it should stabili e after a short time.
• There are some ty es of hot water ta s that discharges large volumes of hot water at first but stabilize after time.
• To kee the tem erature stable, the heater limits the amount of water that can flow through it to a small amount initially, but the amount increases over time.
The amount of hot water in the tub is less/more than the set amount.
• 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 restarted, the tub will fill more.
The flow meter alarm does not sound even when filled to the set amount.
• 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.
Amount of hot water available has decreased over time.
• Is the water filter clogged? ( .3
• If the su ly water is hard and has not been treated, scale can build u in the water heater and decrease the maximum amount of hot water available. Scale can be removed from the water heater by flushing the unit eriodically. To revent scale from forming in the water heater, a water softener or scale inhibitor is recommended.
Remote Controller
The ower / does not light u .
indicator
The water tem erature changes after a ower failure or when the ower is disconnected.
The clock dis lay shows
.
The flow meter alarm does not sound or it sounds before the bathtub has been filled to the set amount.
The setting cannot be changed when a button is ressed.
• as there been a ower failure
• Is the ower connected ro erly
• The temperature setting and the flow meter alarm setting may both need to be reset after a ower outage.
• If the time is not dis layed on the clock, either a ower failure has occured or ower was disconnected resulting in the dis lay showing . .1
• The flow meter alarm is set to sound when hot water is continuously discharged for the set volume of water.
If hot water is used for other fixtures while filling the bath tub, the alarm will sound before the tub is full.
• 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.
• The remote controller is locked.
hile the remote controller is locked these buttons
cannot be used. .22 or recirculation systems lame symbol lights u or goes out.
• uring recirculation o eration, the water heater will turn on and off to kee the hot water i es u to tem erature.
Sounds
The fan can be heard after o eration is sto ed.
A motor can be heard when turning the unit or , when o ening or closing a fixture, or after the unit has been running for a while.
• These noises indicate the ro er o eration of devices which are designed to let the unit reignite more uickly, and ensure the water tem erature is stable.
39
Trou leshooting-3
Other
The eater sto s burning during o eration.
• Are the gas and water su ly valves fully o en
• Is the water su ly cut off
• Is the hot water fixture/faucet sufficiently open?
• Is the gas being cut off by the gas meter
Can other gas devices such as stoves be used
• or 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.
hite smoke comes out of the exhaust vent on a cold day.
The hot water is turbid.
• This is harmless. Small bubbles a ear as the air in the water is heated and de ressuri ed ra idly to atmos heric ressure.
The water a ears blue
The bath tub/wash basin has turned blue
• Coloration to a blue color may be noticed from small traces of co er ion contained in the water and fat furring . owever, there are not roblems concerning health. Coloration of the bath tub/wash basin can be revented by cleaning fre uently.
A small amount of water is discharged from the ressure relief valve.
• This is normal. hen the water heater is under high ressure, a small amount of water may be discharged from the ressure relief valve.
40
Water ualit
amage to the water heater as a result of oor water uality is not covered by the imited arranty. To ensure full warranty coverage, treat or condition water that exceeds the target levels rovided in this table.
Source A ational
Regulations C R art 1 3.3
Total ardness*
Aluminum
2 mg/ 12 g g or less
.
to .2 mg/ or less
Chloride
Co er
Iron anganese
2 mg/ or less
1 mg/ or less
.3 mg/ or less
.
mg/ or less
. 8.
Total issolved Solids mg/ or less inc mg/ or less
Sulfate ion
Residual chlorine
2 mg/ or less
mg/ or less
* aximum limit suggested by orit .
Chec ing or Error Conditions
hen a failure occurs, information relating to the error blinks on the dis lay.
The error alarm may also continuously sound.
Error Code Displa Screen
The dis lay may indicate the ty e of failure that has occured de ending on the system configuration.
Error Code Cause
Ignition error
Abnormal combustion, low gas su ly ressure
Action
Check whether the gas valve is o en. ress the ower button to turn the unit off, o en a hot water fixture/faucet, and turn the unit back on. If the flashing number doesn t return the roblem is solved.
ave a rofessional check the gas su ly ressure.
Contact the nearest orit agent.
Abnormal combustion Contact the nearest orit agent.
Contact Norit America i :
• Any other error code a ears.
• An error code is indicated again after the above actions were followed.
• There are any other uestions.
To Stop the Error Alarm
Press the utton the indicator will turn o
41
42
Follow-up Ser ice-1
Re uesting Ser ice
irst follow the instructions in the troubleshooting section .3
If the error is not corrected, contact orit America Technical Su ort at 8
e will need to know
The Model check the rating late
*See . for the location of the label
Date o purchase ...... see the warranty
Details o pro lem ....(flashing error codes,
etc., in much detail as ossible
Your name address and telephone num er
Desired date o isit
* A re uest for service may be re ected if the water heater is installed in a location where working on the unit may be dangerous. Contact a lumber.
8 .
I an error code is displa ed the model name and code can e chec ed
* If more than one water heater is installed, this rocedure cannot be used.
x rror
Operation
1
Press the utton
Screen Displa
2 utton is pushed again
Return to revious screen. odel code roduct name of water heater is dis layed
Screen dis lay xam le
Description
* If the dis lay is left untouched
for a roximately seconds,
it will return to the revious
screen.
Press the
1
Operation
Press the inside the co er
utton to chec the status o the s stem
Screen Displa utton
Screen dis lay xam le
Description
* Status can be checked regardless of whether the button is / .
* If the it is left untouched for a roximately
1 minutes, it will return to
the revious screen.
● Identifying units that require service (system dependent).
Press the utton twice inside the co er
Screen dis lay xam le
* If you ress the button , the screen of ste 1 is dis layed.
If you ress the button , the
screen returns to the revious
screen.
Warrant
A warranty registration card is included se arately.
Be sure that the plumber, date of purchase and other necessary items are filled in.
Read the content carefully, and kee the warranty card in a safe lace.
or re airs after the warranty eriod, there will be a charge on any service, and service will only be erformed if the unit is deemed re airable.
Period o Time or Stoc ing Repair Parts
orit will stock re air and maintenance arts for this unit for the time eriod from the date of the original installation as follows twelve 12 years for the heat exchanger and ten 1 years for remaining arts.
Reinstallation
If you want to reinstall the appliance at a different location, confirm that the gas and power su ly indicated on the rating late are available at the new location. If you are not sure, consult the local utility com any.
43
Follow-up Ser ice-2
Gas Con ersion
If you move to a region that uses a different ty e of gas or if the local gas su ly is converted, re lacement of the gas manifold and ad ustment of the a liance will be necessary.
This work must be performed by either Noritz or a qualified service agency and will be charged for even during the warranty period. The qualified installer will also be responsible for purchasing the gas conversion kit directly from the manufacturer. or more information, contact orit America Technical Su ort at 8 8 .
WARNING
The gas conversion kit shall be installed by a qualified service agency* in accordance with the manufacturer s instructions and all a licable codes and re uirements of the authority having urisdiction. The information in the instructions must be followed to minimi e the risk of fire or explosion or to prevent property damage, personal injury, or death. The qualified service agency is res onsible for the ro er installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manufacturer s instructions su lied with the kit.
* A qualified service agency is any individual, firm, corporation, or company which either in person or through a re resentative is engaged in and is res onsible for the connection, utili ation, re air or servicing of gas utili ation e ui ment or accessories; who is ex erienced in such work, familiar with all recautions re uired, and has com iled with all of the re uirements of the authority having urisdiction.
Before the gas conversion is erformed, verify the ro er gas conversion kit with your water heater model on the table rovided below.
Conversion it
C 8
C odel
C1 1
C1 1
C1 1 C
Conversion Ty e ro ane to atural as
C ro ane to atural as
C 1 C1 1 C
The following arts are su lied in the conversion kit. These items will re lace the existing arts that are currently installed in the unit. ake sure that all arts are re laced and ro erly installed by a qualified service agency.
* A orit remote controller and a digital gas manometer are re uired to com lete the installation. o not roceed if this e ui ment is not immediately available.
44 anifold late Ring am er Conversion it abel
After the necessary arts have been re laced on the unit, the remote controller is then used to ad ust the settings on the water heater for use with the ro er gas ty e.
The gas pressure values at both the gas supply inlet fitting and at the manifold inlet on the unit are verified by the installer. Proper adjustments will be made to ensure safe and efficient operation.
Once this is completed, a final gas leak check will be performed to confirm that all parts have been securely installed.
If you notice the smell of gas at any time after the installation has been com leted, turn the water heater off and contact your gas su lier immediately.
Speci
fi
cations-1
• Specifications may be changed without prior notice.
• The ca acity may differ slightly, de ending on the water ressure, water su ly, i ing conditions, and water tem erature.
Item odel ame
Ty e
Ignition erating ressure
Installation
Air Su ly/ xhaust imensions eight x idth x e th eight
Connection Si es ower Su aterials ly ater Inlet ot ater utlet as Inlet
Su ly
Consum tion
Casing lue Collar eat xchanger
Safety evices
Speci
fi
cations
Specification
C1 1 utdoor all ounted ower ented irect Ignition
1 1 si
23. mm x 13.8 3 mm x . 2 mm
lbs.
.2 allon 1.
3/
3/
3/
12 AC
ree e revention 1 1
Zincified Steel Plate/Polyester Coating
Stainless Steel
Co er Sheeting, Co er Tubing lame Rod, Thermal use, ightning rotection
Accessories Remote Controller, Remote Controller Cord,
Anchoring Screws
Item as
Consum tion
Ca acity Range
Tem erature Settings efault Tem erature tions
Per ormance
2 C Rise
ode
C ode aximum erformance
1 , btuh
1 , btuh inimum erformance
1 , btuh
1 , btuh
.
.8 /min.
1 1 In intervals ,
1 , 1 , 18 1 tions
3 8 C In 1 C intervals ,
8 C In C intervals 2 tions
12 C ,13 C ,1 riginal is 12
C ,18 8 C
C
45
46
Speci
fi
cations-2
• Specifications may be changed without prior notice.
• The ca acity may differ slightly, de ending on the water ressure, water su ly, i ing conditions, and water tem erature.
Item odel ame
Ty e
Ignition erating ressure
Installation
Air Su ly/ xhaust imensions eight x idth x e th eight
Connection Si es ower Su aterials ly ater Inlet ot ater utlet as Inlet
Su ly
Consum tion
Casing lue Collar eat xchanger
Safety evices
Speci
fi
cations
Specification
C1 1 C
Indoor all ounted ower ented irect Ignition
1 1 si
23. mm x 13.8 3 mm x 11. 28 mm
8 lbs.
.2 allon 1.
3/
3/
3/
12 AC
8 83 ree e revention 1 3
Zincified Steel Plate/Polyester Coating
Stainless Steel
Co er Sheeting, Co er Tubing lame Rod, Thermal use, ightning rotection
Accessories Remote Controller, Remote Controller Cord,
Anchoring Screws
Item as
Consum tion
Ca acity Range
Tem erature Settings efault Tem erature tions
Per ormance
2 C Rise
ode
C ode aximum erformance
1 , btuh
1 , btuh inimum erformance
1 , btuh
1 , btuh
.
.8 /min.
1 1 In intervals ,
1 , 1 , 18 1 tions
3 8 C In 1 C intervals ,
8 C In C intervals 2 tions
12 C ,13 C ,1 riginal is 12
C ,18 8 C
C
De ault Settings
Items
Cloc displa unset
Hot water temperature
Hot water olume
De ault setting
110 ˚ F / 40 ˚ C
Alarm o
Customi a le Settings P23 - 2
Ma imum Output Temperature
De ault setting
185 ˚ F / 85 ˚ C
Powersa e dspl and cloc displa
Brightness o the displa screen when the remote controller is turned on
No-1
Normal
Operation sound o remote controller Yes
Noti ication when a ailure is generated Yes
Indicates an item that can be restored to default.
47
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