Rinnai MC-91-1US User manual

11
Rinnai America FF Models
GENERAL CONTROLLER INFORMATION
The controller(s) for the Rinnai Water Heater allow the customer to control the functions of the
water heater and to diagnose certain fault conditions
REMOTE CONTROLLERS IDENTIFICATION
MC-91-1US (comes with the unit)
MC-100V-1US (optional)
BC-100V-1US (optional)

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Rinnai America FF Models
R E M O T E CONTROLLER OPERATION
DIAGNOSTIC USE OF CONTROLLER
1. To Display Maintenance Codes: Press ‘On/Off’ button. To sequence through stored
maintenance codes, press ‘On/Off’ followed by the thermostat button.
2. To Display Water Flow through water heater: Press thermostat button, hold
for 2 seconds and simultaneously press ‘On/Off’ button.
3. To display Outlet Water Temperature: Press ‘thermostat button’, hold for 2
seconds and simultaneously press ‘On/Off’ button.
Digital Monitor
Indicates the selected water
temperature. Error messages
fl ash in the event of a failure.
Thermostat
Increases or decreases
the desired water
temperature.
In Use Indicator
Indicates that a hot water tap
is open and that control of the
temperature has been taken at
another controller.
ON/OFF
Used to switch the
water heater on and off
Priority
Pressing takes control
of the water temperature
by this controller only
when all taps are off.
Priority Indicator
Indicates whether this
controller has priority
control over the water
temperature
MUTE
To eliminate the beeping sound, press and hold and button
simultaneously until a ‘beep’ is heard (approximately 5 seconds).
TO CHANGE TEMPERATURES FROM OF to OC
1. Press and hold ‘On/Off’ button for 5 seconds while water heater is OFF.
2. To change back from OC to OF, please repeat step 1.

With power interruption, water heater will automatically default to the ON position to
provide hot water.
Digital Monitor
Indicates the selected water
temperature. Error messages flash
in the event of a failure.
ON/OFF
Used to switch the water heater on
and off.
Priority
Pressing takes control of the water
temperature by this controller only
when all taps are open.
Function
Enables the user to set the clock
and sound volume functions.
Thermostat
Increases or decreases the desired
water temperature.
In Use Indicator
Indicates that a hot water tap is open
and that control of the temperature is
taken at another controller.
Water Temperature Indicator
Indicates the selected hot water
temperature.
Clock
12 Hour AM / PM clock. In the event
of a fault, codes for error messages
will flash here.
Call
Allows user to contact another
controller. Can be used as a
communication channel for errands
or in emergency situations.
In Use Indicator
Indicates that a hot water tap is open and that control
of the temperature is taken at another controller.
Priority
Pressing takes control of the water
temperature by this controller only
when all taps are off.
Call
Allows user to contact another
controller. Can be used as a
communication channel for errands
or in emergency situations.
Clock
12 Hour AM / PM clock. In the event
of a fault, codes for error messages
will flash here.
Thermostat
Increases or decreases the desired
water temperature.
Sound Volume
Used to select the voice prompt
volume.
Water Smart / Bath Fill Indicator
Used to select Water Smart / Bath Fill Function.
ON/OFF
Used to switch the water heater on
and off.
Water Smart / Bath Fill
Used to select Water Smart / Bath
Fill Function.
Power Save
Indicates that the remote is in the
energy saving mode.
Water Volume
Used to select Water Smart / Bath
Fill volumes.
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Rinnai America FF Models
DELUXE CONTROLLER
ABOUT THE DELUXE CONTROLLER (MC-100V-1US)
ABOUT THE THE DELUXE BATHROOM CONTROLLER (BC-100V-1US)
DELUXE BATHROOM CONTROLLER

HOTHOT
COLDCOLD
ON!ON!
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Rinnai America FF Models
DELUXE CONTROLLER
Setting The Clock (MC-100V Deluxe Controller ONLY)
The clock is a 12 hour AM/PM style display. To set the time, press the ‘Function’ Button twice
within 10 seconds. Press the and Buttons to adjust the time. When you get close to
the time you wish to set, press the button intermittently to avoid going further than the desired
time.
Press the ‘Function’ Button again to complete setting the clock and return to normal operation.
Adjusting Temperature
Simply press the or buttons until the required temperature is displayed on the Digital
Monitor.
To Operate the hot water unit, open any hot water tap. This will automatically light the burner
providing hot water. The red fl ame of the water heater ‘In Use Indicator’ will illuminate on
the Controller.
Once the hot water is running, if the set temperature is either too hot or cold, press the or
buttons until the desired temperature is reached.
Setting The Sound Volume
To do this, press the ‘Function’ Button, the default voice prompt sound volume is medium, each
subsequent press of the and Button will cycle through the available volume settings in
the following order: High Voice - Off Voice (beep) - Off Sound (no beep) - Low Voice - Medium
Voice.
TEMPERATURE CANNOT BE
ADJUSTED EXCEPT BETWEEN
98 OF AND 110OF WHEN ANY
HOT WATER TAP IS OPEN.

CHECK WATER TEMPERATURE BEFORE USE.
A parent should always check the temperature before a child is placed in contact
with hot water.
Each time a button is pressed, a ‘beep’ will sound. The ‘beep’ sound and the ‘bath fill
complete’ buzzer can be muted by pressing the Temperature Controller Up and Down
buttons simultaneously for more than 3 seconds. To return to original settings, repeat this
step.
Avoid getting water in the speaker as this may cause damage.
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Rinnai America FF Models
DELUXE BATHROOM CONTROLLER
Setting the Sound Volume
The voice prompt sound volume for all Deluxe
Controller(s) can be set individually. To do
this, press the ‘Sound Vol.’ button. The default
voice prompt sound volume is medium, each
subsequent press of the ‘Sound Vol.’ will cycle
through the available volume settings in the
following order: High Voice - Off Voice (beep)
- Off Sound (no beep) - Low Voice - Medium
Voice.
Press the ‘Sound Vol.’ again to complete setting
of the sound volume and return to normal
operation.
Adjusting Temperature
Simply press the ‘Hot water temp.’ or
buttons until the required temperature is
displayed on the Digital Monitor.
To Operate the hot water unit, open any hot
water tap. This will automatically light the
burner providing hot water. The red fl ame of the
water heater ‘In Use Indicator’ will illuminate
on the Temperature Controller.
Once the hot water is running, if the set
temperature is either too hot or cold, press the
‘hot water temp. or buttons until the
desired temperature is reached.
TEMPERATURE CANNOT BE AD-
JUSTED EXCEPT BETWEEN 98
OF AND 110OF WHEN ANY HOT
WATER TAP IS OPEN.

IT IS THE CUSTOMERS RESPONSIBILITY TO MONITOR THE BATH FILL
REMOTE CONTROLLER FUNCTIONS.
Be careful not to overfi ll the bath, an average bath volume is 60 gallons. It is
recommended that when fi lling a bath for the fi rst time you should:
=
Remain by the bath during the fi lling process.
=
Use a low bath fi ll volume such as 25 gallons or less.
‘Water Smart / Bath Fill’ button is unavailable with the MSA Controller System.
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Rinnai America FF Models
DELUXE BATHROOM CONTROLLER
OPERATING THE WATER SMART / BATH FILL BUTTON
The ‘Water Smart / Bath Fill’ button allows a preset water volume and
temperature to be selected and run automatically.
Initial Settings
When you press the ‘Water Smart / Bath Fill’ button, a Shower /
Bath Volume will appear on the indicator. When a deluxe bathroom
controller(s) is fi rst turned on, the default shower / bath fi ll volume
is set to 25 gallons. The shower / bath volume can be lowered to a
minimum of 10 gallons or raised to a maximum of 120 gallons.
Programming shower / Bath Volume and Temperature
With the system on, select a Deluxe Bathroom controller(s) and ensure that it currently has
priority, If it does not have priority, press the ‘Priority’ button once and the ‘Priority’ button will
To select the desired delivery temperature, use the
‘Temp.’ or buttons.
The selected temperature will be displayed on the
bathroom controller monitor and will remain as the
default temperature until it is changed.
To select the volume of water to be used by the
shower / bath, use the ‘Water Vol.’ or
buttons.
The selected volume is displayed at the Right of
the controller monitor numerically.
When fi lling a bath for the fi rst time, it is
recommended that a low bath fi ll volume such as
25 gallons or lower (if available) be used. During
any subsequent bath fi lls, the volume can then be
adjusted to suit your known bath volume and / or
desired fi ll level.

HOTHOT
COLDCOLD
ON!ON!
HOTHOT
COLD
ON!OFF! COLD
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Rinnai America FF Models
DELUXE BATHROOM CONTROLLER
Using Water Smart/ Bath Fill
Press ‘Water Smart / Bath Fill’ button once. The ‘Water Smart / Bath
Fill’ button will illuminate and a tone will sound. The ‘Bath’ indicator
will also be displayed in the kitchen Controller monitor (Deluxe Models
ONLY).
The voice prompt will say “The hot water system is ready. Open the
hot water tap”.
Open the hot water tap for the relevant shower or bath.
The ‘In Use’ indicator will illuminate at all Deluxe Temperature
Controller(s) and the shower will run or the bath will start to fill.
To Stop Water Smart / Bath Fill Operation
If you wish to stop the water flow whilst the ‘Water Smart / Bath Fill’
button is in operation, simply press the ‘Water Smart / bath Fill’
button. The ‘Water Smart / Bath Fill’ button will flash and the
voice prompt will say “Hot water is not available. Turn off all hot
water taps, and push the Bath Fill button”. Follow the voice prompt
instructions.
When Water Smart / Bath Fill Operations Finishes
Once the Water Smart / Bath fill operation finishes, the following
events will occur:
1. The flow from the shower / bath hot water tap will cease.
2. The ‘Water Smart / Bath Fill’ button will flash.
3. The Kitchen Controller ‘Bath’ indicator will flash (Deluxe Models)
4. A tone will sound.
5. The voice prompt will say “Bath fill is complete. Turn off the
bath hot water tap, and push the Bath fi ll button.”
Follow the voice prompts instructions. Note that the
hot water unit will not allow hot water to fl ow from any
fi xture until the ‘Water Smart / Bath Fill’ button has
been changed.
6. The ‘Water Smart / Bath Fill’ button light on
the Bathroom Controller and the ‘Bath’ indicator
on the Kitchen Controller monitor will go out.
COMBINING CONTROLLERS AND DELUXE CONTROLLERS
Controller and Deluxe Controller can be combined and will function as
described in other sections of this manual. Refer to the table on page 18