Noritz RC-9018M User manual

Note to Owner:
This User’s Manual provides additional
details on the operation of this Remote
Controller not covered in the Water Heater
Owner’s Guide. Keep this and all manuals
provided with the Water Heater for future
reference.
Thank you for purchasing this Remote
Controller.
• Please read this User’s Manual carefully to
ensure appropriate use.
• These operating instructions describe the
functions of this Remote Controller.
Keep these instructions where they can be
found whenever necessary, preferably in
the same location as the Owner’s Guide
provided with the Water Heater.
NORITZ America Corporation
User’s Manual
<Operation Guide>
Remote Controller
Model : RC-9018M
SHB8126-1
Rev. 07/19
Contents
General Parts........................................ 2
Remote Controller ................................ 2
Clock Adjustment ................................. 4
Using the Water Heater ........................ 5
Setting Hot Water Temperature ............ 5
Automatic Water Heater ON or OFF
Operation............................................. 8
Locking the Remote Controller ............. 9
Customizable Settings <Misc settings>..10
System Check .......................................13
For System [Rcrc]..................................14
Disabling Automatic Recirculation
Operation .............................................. 14
Manually Stopping Recirculation
Operation .............................................. 15
Setting the Recirculation System
Operation Timer.................................... 16
Troubleshooting ...................................18
Follow-up Service .................................19
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2
The Remote Controller will emit a tone when a button is pressed.
Remote Controller (RC-9018M)
Cover shown in the open position.
General Parts
General Parts
4
5
10
11
6
7
8
9
Remote Controller
Part Number
The part number is printed
on the surface of the cover.
2
1
3
1. Power Button / Indicator (Green)
For turning the Water Heater ON/OFF.
2. PROG Buon / Indicator (Red)
Activate the automatic Water Heater power ON/
OFF setting as determined by the user selected
schedule. (See page 7)
3. ALARM OFF Button / Indicator (Red)
Stop the tone that is emitted when an error occurs.
(See page 18)
4. Speaker
5. Display Screen (See next page)
6. MENU Button
Use to change system settings or to return to the
home screen.
If you press the MENU button and press the /
buttons, “Sys monitor” is sometimes displayed,
however, do not use this mode as it meant for
installation or service technician only.
7. BACK Button
Return to the previous screen while making system
settings or checking status.
8. / Buttons
For setting the hot water temperature (See page 6),
the flow meter alarm, and other settings.
9. ENTER Button
Confirm changes made by the user.
10. STATUS Button
Check the status of the system or the number of
installed the Water Heater. (See page 13)
11. Lock Button
Lock Remote Controller operation. (See page 9)
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3
Display Screen
• The display screen 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.
(Home Screen Example)
General Parts
8
4
2, 3
1. Flame Indicator
The flame indicator is displayed during combustion
when using hot water or recirculation functions.
2. Display for Temperature Setting
During normal operation, “Temp” is displayed.
3. Display for High Temperature “Hi temp”
Displays when the set temperature is 125°F / 55°C
or higher. (See page 6)
4. Temperature Setting (e.g. 110°F)
5. Clock Display (e.g. 10:15 am)
Normally the clock display is not shown when the
Power button is OFF.
* This setting can be changed so that the clock is
displayed even when the Power button is turned
OFF. (See page 10)
6. Error Code
A number will flash if a failure occurs.
7. Locked Display
The lock symbol is displayed when the Remote
Controller is locked. (See page 9)
8. Recirculation Timer
The clock symbol is displayed when the
recirculation timer is activated. (See page 16)
9. Display for Recirculaon Operaon
• For systems that use recirculation operation, the
symbol is displayed when the Power button is
turned ON.
• It is displayed during the recirculation operation.
(See page 5)
1 7
5, 6 9
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 Power button is ON.
Normally, the hot water temperature and the clock, etc. are displayed.
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4
• The time changes in 1 minute increments
with each press of the button, and then in 10
minutes increments if the button is pressed
and held.
• [NRCR model only]
Temporary time is displayed.
• If the display is left untouched for
approximately 20 seconds without pressing
the ENTER button, the setting will be
completed. When the Power button is turned
ON, the home screen will be restored.
3. Use the / buttons to reset the clock.
4. Press the the ENTER button to complete the
clock setting.
2. Press the ENTER button.
1. Press the MENU button inside the cover.
(e.g. 10:15 am)
The screen returns to the previous screen.
Clock Adjustment
Clock Adjustment
• This adjustment can be made whether the
Power button is ON/OFF.
NOTE • 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.
• [NRCR model only]
In the event of a power outage
or disconnecting power to the
Water Heater, and when power is
restored, the clock setting on the
display may now read an incorrect
time and will need to be reset to
the correct time.
• By default, when the Power button
is turned OFF, the clock display
disappears, but it is possible to
display the clock when the Power
button is turned OFF by changing a
setting. (See page 10)
Operation
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5
(e.g. 110°F)
If “System [ Tank ]” is displayed, hot water will be
discharged at the temperature of the storage tank.
(See page 13)
2. Turn on hot water.
1. The Power button is ON.
Using the Water Heater
For systems with recirculation
operation, is displayed here.
Displayed during combustion
Check
• 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,
consult with installer.
• When setting the Water Heater to 125°F
(55°C in °C mode) or higher, “Hi temp” will
blink for 10 seconds and emit a tone as a high
temperature warning.
• Take caution when using the Water Heater
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.
DANGER
Operation
• The Power indicator is displayed.
• The previously set hot water supply
temperature is shown.
• The setting temperature displayed may vary
from the actual temperature at the fixture
depending on conditions such as season or
length of piping.
[For systems with recirculation operation]
• If you set the Power button to ON,
recirculation operation is automatically
started. (If “Synchro ON/OFF” was set to ON.
(See page 14))
• Turn off hot water, the symbol disappears.
• During recirculation, the symbol may be
continuously displayed.
(e.g. 110°F)
If “System [ Tank ]” is displayed, hot water will be
discharged at the temperature of the storage tank.
(See page 13)
(e.g. 105°F)
1. The Power button is ON.
Setting Hot Water
Temperature
2. Set the temperature using the / buttons
inside the cover.
Operation
• The Power indicator is displayed.
• The previously set hot water supply
temperature is shown.
NOTE • 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.
• 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 thermostatic
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.
• For most residential applications,
the recommended setting
temperature is 120°F (50°C in °C
mode) or less.
Using the Water Heater / Setting Hot Water Temperature
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6
* Display when high temp is set
NOTE • If the set temperature requires
frequent adjustment, locate the
Remote Controller in an easily
accessible location.
• Consult local codes for minimum
operating temperatures.
• Noritz recommends that water
temperature is set as low as
possible to prevent scale build-up
in the heat exchanger.
NOTE These settings are only available on
commercial products.
(e.g. 125°F)
Blinks for approximately
10 seconds Displayed
Setting Hot Water Temperature
[When using °C mode] (Default setting is 40°C (104°F))
37°C (99°F) Washing dishes, etc.
38°C (100°F)
39°C (102°F)
Shower, hot water supply, etc.
40°C (104°F)
41°C (106°F)
42°C (108°F)
43°C (109°F)
44°C (111°F)
45°C (113°F)
46°C (115°F)
47°C (117°F)
48°C (118°F)
50°C (122°F)
55°C (131°F)
High temperature*
(The maximum output temperature
can be set using the remote
contoroller. (See page 10))
60°C (140°F)
65°C (149°F)
70°C (158°F)
75°C (167°F)
80°C (176°F)
85°C (185°F)
Temperature Setting Options
The temperature settings below are examples.
The temperature setting necessary depends on the usage,
the length of piping and the season.
For residential products beginning with the prefix
“NR”:
For commercial products beginning with the prefix
“NC”:
[When using °F mode] (Default setting is 110°F)
100°F Washing dishes, etc.
105°F
Shower, hot water supply, etc.
110°F
115°F
120°F
125°F
High temperature*
(The maximum output temperature
can be set using the remote
contoroller. (See page 10))
130°F
135°F
140°F
145°F
150°F
160°F
170°F
185°F
[When using °F mode] (Default setting is 110°F)
100°F Washing dishes, etc.
105°F
Shower, hot water supply, etc.
110°F
115°F
120°F
125°F High temperature*
(The maximum output temperature
can be set using the Remote
Controller. (See page 10))
130°F
135°F
140°F
[When using °C mode] (Default setting is 40°C (104°F))
37°C (99°F) Washing dishes, etc.
38°C (100°F)
39°C (102°F)
Shower, hot water supply, etc.
40°C (104°F)
41°C (106°F)
42°C (108°F)
43°C (109°F)
44°C (111°F)
45°C (113°F)
46°C (115°F)
47°C (117°F)
48°C (118°F)
50°C (122°F)
55°C (131°F) High temperature*
(The maximum output temperature
can be set using the Remote
Controller. (See page 10))
60°C (140°F)
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7
This example describes setting the “ON time” and
“OFF time” to 10:00 am and 8:00 pm, respectively.
(Display Example)
Set the time to turn ON or OFF the
Power button automatically
• If you set the time to turn ON or OFF the Power
button, the Power button is automatically turned
ON or OFF at the set time every day by just
turning the PROG button ON.
• It is also possible to set only ON or OFF operation.
• For recirculation systems, circulation is started
or stopped according to the Power button
condition, ON or OFF.
4. Press the ENTER button.
6. Press the ENTER button to complete the setting.
8. Press the ENTER button to complete the setting.
9. Check “Set” is selected, and then press the
ENTER button to confirm all settings.
The PROG button is ON.
5. Set the ON time to “AM 10:00” using the /
buttons.
7. Set the OFF time to “PM 8:00” using the /
buttons.
1. Check that the current time is properly set.
(Setting the time : See page 4)
2. Check the PROG button is set to OFF.
3. Press the MENU button inside the cover, Select
“Set PROG” using the / buttons.
Operation
• The previously set “Start time”and “End time”
are displayed.
• This adjustment can be made whether the
Power button is ON/OFF.
• The time changes in 10 minutes increments
with each press of the button, and then in 1
hour increments if the button is pressed and
held.
• If you do not want to set the “Start time”,
select “- :--” (located between AM 11:50 and
PM 0:00 settings).
• Follow the same procedure from step 5.
• If the display is left untouched for
approximately 20 seconds without pressing
the ENTER button, the setting will be
completed. When the Power button is turned
ON, the home screen will be restored.
• If you want to change “ON/OFF time”, select
“Reset” and then press the ENTER button,
return to step 5.
• You can activate automatic operation
regardless if the Power button is ON or OFF.
• The PROG indicator is displayed when
activated.
• “Start time” and “End time” will be displayed
upon activation.
• If both the “Start time” and “End time” are set
to “- :--”, the alarm sounds and “Set PROG” will
display.
Automatic Water Heater ON or OFF Operation
Activate Automatic Operation
Automatic Water Heater ON or OFF Operation
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8
The PROG button is OFF. Following this procedure allows for automated
control of Water Heater operation without user
interaction.
(The setting time shown on the display of the
Remote Controller is for example purposes only.)
• The PROG indicator disappears.
Deactivate Automatic Operation Tips for operation
NOTE • If the PROG button is not set
to OFF, the Water Heater will
automatically turn ON or OFF at
the set times.
• If there is a power failure or power
is disconnected to the Water
Heater, automatic operation will
be deactivated.
e.g. Both ON and OFF functions are automated.
e.g. Only ON function is automated.
e.g. Only OFF function is automated.
The Power buon
is automacally
turned ON
at 10:00 am.
The Power buon
is automacally
turned OFF
at 8:00 pm.
The Power buon
is automacally
turned ON
at 10:00 am.
Your desired me
(Manually
turned OFF)
Your desired me
(Manually
turned ON)
The Power buon
is automacally
turned OFF
at 8:00 pm.
Automatic Water Heater ON or OFF Operation
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9
By locking the Remote Controller, the settings
cannot be changed if a button is pressed by mistake.
2. If you press PROG button, MENU button, and
/ buttons while the Remote Controller is
locked, the “Locked” screen will appear.
1. Press and hold Lock button for approximately 2
seconds to lock the Remote Controller.
Press and hold Lock button for approximately 2
seconds to unlock the Remote Controller.
Operation
• This adjustment can be made whether the
Power button is ON/OFF.
• The operations of PROG button, MENU
button, and / buttons are locked.
• Approximately 3 seconds after locking the
Remote Controller, the display will return to
the previous screen.
• Approximately 3 seconds after the “locked”
screen appears, the display will return to the
previous screen.
• Approximately 3 seconds after unlocking the
Remote Controller, the display will return to
the previous screen.
Locking the Remote Controller
Unlock the Remote Controller
Locking the Remote Controller
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10
Limiting the Maximum Output
Temperature
The maximum output
temperature can be limited to
prevent discharging hot water at
too high of a temperature.
Display Screen Power Saving
Mode [powersave dsply]
To conserve power consumption
of the display, the screen can be
turned off completely or set to
only display the clock when the
Power button is turned OFF.
Adjusting the brightness of
the display screen when the
Remote Controller is turned on
The display screen can be
brightened, darkened, or the
backlight can be turned off
completely.
1. The Power button is OFF.
2. Press the MENU button
inside the cover, select
“Misc settings” using the
/ buttons.
1. Press the MENU button
inside the cover, select
“Misc settings” using the
/ buttons.
1. Press the MENU button
inside the cover, Select
“Misc settings” using the
/ buttons.
4. Select “Max set temp” using
the / buttons, and then
press the ENTER button.
3. Select “Powersave dsply”
using the / buttons,
and then press the ENTER
button.
3. Select “Brightness” using
the / buttons, and then
press the ENTER button.
5. Change the setting using the
/ buttons.
(Setting completed.)
4. Change the setting using the
/ buttons.
(Setting completed.)
4. Change the setting using the
/ buttons.
(Setting completed.)
Operation Operation Operation
Customizable Settings
• The “Misc settings” screen
appears.
• The “Misc settings” screen
appears.
• The “Misc settings” screen
appears.
• To change other settings,
select the option and press
the ENTER button.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
• To change other settings,
select the option and press
the ENTER button.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
• To change other settings,
select the option and press
the ENTER button.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
3. Press the ENTER button.
2. Press the ENTER button. 2. Press the ENTER button.
(e.g. 120°F) (e.g. No-1)
(e.g. Normal)
(Default setting = No-1)
(Default setting = Normal)
The maximum temperature
setting differs by product,
refer to page 6.
Yes : The display will turn
off. The clock will not
be displayed when the
Power button is turned
OFF.
No-1: The display will not turn
off. The clock will not
be displayed when the
Power button is turned
OFF.
No-2: The display will not
turn off. The clock is
displayed when the
Power button is turned
OFF.
Dark / Dim / Normal / Bright
Customizable Settings
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11
Customizable Settings
Stop draining water
from the Water Heater
Muting the Remote Controller
The Remote Controller can be
muted so that it does not emit a
tone when a button is pressed.
(For Multi-System Only)
Error Tone Settings
The Remote Controller can be
muted so that it does not emit a
tone when an error occurs.
Draining the Water Heater
(Refer to “Preventing Damage
from Freezing” as shown in the
Owner’s Guide provided with
the Water Heater.)
1. Press the MENU button
inside the cover, select
“Misc settings” using the
/ buttons.
1. Press the MENU button
inside the cover, select
“Misc settings” using the
/ buttons.
2. Press the MENU button
inside the cover, select
“Misc settings” using the
/ buttons.
3. Select “Touch sound” using
the / buttons, and then
press the ENTER button.
3. Select “Error alarm” using
the / buttons, and then
press the ENTER button. 4. Select “Drain water” using
the / buttons, and then
press the ENTER button.4. Change the setting using the
/ buttons.
(Setting completed.)
4. Change the setting using the
/ buttons.
(Setting completed.) 5. Select “Yes” using the /
buttons.
Operation Operation Operation
• The “Misc settings” screen
appears.
• To change other settings,
select the option and press
the ENTER button.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
• To change other settings,
select the option and press
the ENTER button.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
• Drain the Water Heater
following the procedures
described in the Owner’s
Guide provided with the
Water Heater.
2. Press the ENTER button. 2. Press the ENTER button.
3. Press the ENTER button.
6. Press the ENTER button.
If you press the ENTER button
again when “Drain water” and
“Operating” are alternately
displayed following step 6, the
drain function will stop.
(e.g. Yes) (e.g. Yes)
(Default setting = Yes) (Default setting = Yes)
Yes / No Yes / No
1. The Power button is OFF.
• The “Misc settings” screen
appears. • The “Misc settings” screen
appears.
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12
(Single Water Heater only)
Flow Meter Alarm
The flow meter alarm is being
used to indicate when a tub is
full.
1. The Power button is ON.
2. Press the MENU button
inside the cover, select
“Flow meter” using the
/ buttons.
4. Change the volume using
the / buttons, and then
press the ENTER button.
5. Turn on hot water.
6. Turn off the hot water when
the alarm sounds to prevent
overfilling.
Operation
• Check the current setting
temperature.
• The “Flow meter” screen
appears.
• To return to the home screen,
press the MENU button or
let it sit for approximately 20
seconds.
• When the tub fills with the
preset volume of water, an
alarm will sound alerting you
to shut off the water.
3. Press the ENTER button.
Customizable Settings
(Default setting = Alarm off)
[For gallon]
10- 60 gal (In 5 gal intervals),
60- 100 gal (In 10 gal intervals),
Alarm off
[For liter]
40- 260 L (In 20 L intervals),
260- 380 L (In 40 L intervals),
Alarm off
NOTE • The hot water filling
temperature is
same as the setting
temperature.
• Although the
temperature
can be set to
125°F/50°C or
higher, do not set
the temperature
to 125°F/50°C or
higher as it can
cause severe burns
instantly or death
from scalding.
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13
System Check
System Check
• Depending on the configuration of your system, not all functions may be used.
• If you press the STATUS button, you can check the status of the system.
• The pictures below (the number of Water Heaters, fixtures, and pumps) will vary depending on the
configuration of the hot water system.
(Display Example [System [ Rcrc ] ])
When you start using the system, cold
water in the piping must be discharged
before receiving hot water.
Water Heater
The Water Heater only operation. (Functions other than those shown on pages 14 to 17 can be used.)
Display “System [ Std ]” on the Remote Controller
Instant hot
water is
available.
Hot water is circulated
in the piping.
Pump
Water Heater
• The Water Heater and recirculation operation. (All functions can be used.)
• During recirculation operation, hot water is always circulated in the piping to provide instant hot water when
a fixture is opened. (When setting the recirculation system operation timer, the recirculation system operates
at the set times.)
• If you set the Power button to ON, is displayed. (If “Synchro ON/OFF” is set to ON (See page 14).)
Display “System [ Rcrc ]” on the Remote Controller
Hot Water
storage
tank
Instant hot
water is
available.
Hot water is
circulated to
the tank.
Pump Pump
Water Heater
• The Water Heater combined with a storage tank operation. (Functions other than those shown on pages 14
to 17 can be used.)
• 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 Power button to ON, is displayed.
Display “System [ Tank ]” on the Remote Controller
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14
Disabling Automatic
Recirculation Operation
For “System [ Rcrc ]”
Disabling Automatic Recirculation Operation
• To check system status. (See page 14)
• When “Synchro ON/OFF” is set to No,
recirculation can be activated manually.
• To change “Synchro ON/OFF” from No to Yes,
follow the same procedure as described below.
2. Press the ENTER button.
5. Press the ENTER button.
4. Select “No” using the button.
3. Select “Synchro ON/OFF” using the /
buttons, and then press the ENTER button.
1. Press the MENU button inside the cover, select
“Recirc menu” using the / buttons.
Operation
• This adjustment can be made whether the
Power button is ON/OFF.
• If the display is left untouched for
approximately 20 seconds without pressing
the ENTER button, the setting will be
completed. When the Power button is turned
ON, the home screen will be restored.
The screen returns to the previous screen.
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15
(Display when recirculation is set to OFF)
Manually Stopping
Recirculation Operation
For “System [ Rcrc ]”
Recirculation operation can be manually stopped or
started using this procedure.
3. Press the ENTER button.
5. Press the ENTER button.
4. Select “Recirc on/off” using the / buttons.
2. Press the MENU button inside the cover, select
“Recirc menu” using the / buttons.
Operation
• Display “Starting recirc operation” when the
recirculation is set to ON.
• If the display is left untouched for
approximately 20 seconds without pressing
the ENTER button, the setting will be
completed. The home screen will be restored.
The screen returns to the previous screen.
Manually Stopping Recirculation Operation
NOTE Even if recirculation is set to OFF,
recirculation operation is restarted
by either turning the Power button
ON, when the Water Heater is
turned ON automatically (see page
7) or when the recirculation timer
(see page 16) is active.
(e.g. 110°F)
1. The Power button is ON.
• The Power indicator is displayed.
• The previously set hot water supply
temperature is shown.
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16
(Display Example)
Setting the Recirculation
System Operation Timer
For “System [ Rcrc ]”
This example describes setting the recirculation
system to operate between 5:00 am- 8:00 am.
• With the recirculation operation timer set, hot
water will be automatically circulated in the hot
water pipes.
Even with this function activated, it may take
several minutes for hot water to be completely
circulated through the plumbing system. Set the
timer to activate the recirculation system prior to
the first use of hot water to ensure hot water is
instantly available.
• Multiple recirculation time periods can be set.
• Until the timer is deactivated (See page 17), the
recirculation system will operate daily at the set
times.
• When the recirculation system is turned OFF by
the timer, the Water Heater will still remain ON
and can be used normally.
• [NRCR model only]
Once manual recirculation operation timer is set
and activated, the Auto recirculation function will
be canceled. To activate the Auto recirculation
function again, refer to Water Heater’s installation
manual or contact to Noritz America Technical
Support at 1-866-766-7489.
3. Press the ENTER button.
5. Press the ENTER button.
4. Select “Recirc timer” using the / buttons.
1. Check that the current time is properly set.
(Setting the time: See page 4)
2. Press the MENU button inside the cover, Select
“Recirc menu” using the / buttons.
Operation
• This adjustment can be made whether the
Power button is ON/OFF.
• The previous setting is displayed.
6. Select “AM 5:00” using the / buttons.
8. Select “AM 8:00” using the / buttons.
7. Press the ENTER button to complete the “Start”
time setting.
9. Press the ENTER button to complete the “End”
time setting.
• Every time when you press the button, the
time changes by one hour.
• [To add additional time periods to the current
setting, or to cancel the previous setting]
1) Press the ENTER button without setting
“Start” time.
2) Press the ENTER button without setting
“End” time.
3) Follow the procedures “Adding Additional
Time Periods” or “Resetting All Time
Periods” (See page 17).
• Every time when you press the button, the
time changes by one hour.
Proceed to next Page
Setting the Recirculation System Operation Timer
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17
Setting the Recirculation System Operation Timer
The screen returns to the “Recirc Menu”.
10. Press the ENTER button to complete the time
setting.
3. Press the ENTER button.
2. Press the ENTER button.
2. Press the ENTER button.
3. Select the time period following the procedures
in steps 6 to 9 on page 16.
3. Adjust the time period following the procedures
in steps 6 to 9 on page 16.
“Recirc timer” and “Recirc timer on”
are alternately displayed on the menu
(approximately 10 seconds)
(Example of home screen
when the Power button is turned ON)
(All settings are cleared.)
Displayed
• The timer will not activate without pressing
the ENTER button.
• If the time is not set, the time setting screen is
displayed (See page 4).
• Until the timer is deactivated, the recirculation
system will operate daily at the set “Start” and
“End” times.
• If the Power button is ON, the screen returns
to the home screen in approximately 10
seconds.
• If the timer is deactivated during a
recirculation time period, recirculation
will continue until it is stopped using the
procedure shown on page 15.
• You can set multiple operation time periods.
Add Additional Time Periods
Cancel the Recirculation System
Operation Timer
Reset All Time Periods
1. After step 9 on page 16, select “Add” using the
/ buttons.
1. Carry out steps 1 to 5 on page 16.
2. Select “Cancelled” using the / buttons.
1. After step 9 on page 16, select “Reset” using the
/ buttons.
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18 Troubleshooting
Troubleshooting
Remote Controller
The Power indicator does not light up.
• Has there been a power failure?
• Is the power connected properly?
The water temperature changes after a power
failure or when the power is disconnected.
• The temperature setting and the flow meter
alarm setting may both need to be reset after a
power outage.
The clock display shows “- : - -”.
• If the time is not displayed on the clock, either
a power failure has occured or power was
disconnected resulting in the display showing
“- :--”. (See page 4)
The flow meter alarm does not sound or it sounds
before the tub has been 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 hot water is used for other fixtures while filling
the 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 setting cannot be changed when a button is
pressed.
• The Remote Controller is locked. While the
Remote Controller is locked these buttons
the PROG button, the MENU button, and the /
buttons cannot be used. (See page 9)
[For recirculation systems]
Flame Indicator lights up or goes out.
• During recirculation operation, the Water Heater
will turn on and off to keep the hot water pipes
up to temperature.
• This section only covers issues with the Remote
Controller. To diagnose issues with the Water
Heater, consult the Owner’s Guide supplied with
the Water Heater.
Checking for Error Conditions
When a failure occurs, information relating to the
error blinks on the display.
The error alarm may also continuously sound.
For additional details on the cause of the error
displayed, refer to the “Troubleshooting” section in
the Owner’s Guide provided with the Water Heater.
[Error Code Display Screen]
Blinking
Blinking
The display may indicate the type of
failure that has occurred depending
on the system configuration.
Blinking
Stop the Error Alarm
Press the ALARM OFF button (the indicator will turn
off).
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19
Follow-up Service
Follow-up Service
• Service and warranty periods are based on the
type of product and the application type.
Refer to the Limited Warranty provided with the
Water Heater for complete details.
• Refer to the “Troubleshooting” section in this
manual as well as the Owner’s Guide supplied
with the Water Heater. If the problem is not
corrected, contact Noritz America Technical
Support at 1-866-766-7489.
Requesting Service
If an error code is displayed, the model
name and code can be checked
(e.g. Error Code 20)
Blinking
(Display Example)
Blinking
• If more than one Water Heater is installed, this
procedure cannot be used.
• If the display is left untouched for
approximately 60 seconds, it will return to the
previous screen.
2. Press the ENTER button again. (Return to
previous screen.)
1. Press the ENTER button.
Model code
Product name of the Water Heater is displayed
(Display Example)
(Display Example)
Check the status of the system
1.Press the STATUS button inside the cover.
2.Press the STATUS button inside the cover again.
• Status can be checked regardless of whether
the Power button is ON/OFF.
• If you press the BACK button or it is left
untouched for approximately 10 minutes, it
will return to the previous screen.
• You can Identify units that require service.
(system dependent)
• If you press the BACK button, the screen
returns to STEP 1.
If you press the STATUS button, the screen
returns to the previous screen.
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