Rinnai INFINITY 32 User manual

How to use your
Water Heater
Temperature
Control
Operation
Infinity 18
Infinity 20
Infinity 22
Infinity 24
Infinity 32
Your installer is responsible for correct installation.
Installation instructions are located in a pouch attached
to the inside front panel of the water heater.
24 Hr Hot Water
In all areas.
0800-746624

- 1 -
IMPORTANT
has a service and spare
parts network in all states.
Our Service network personnel are fully trained and equipped to
give the best service on your Rinnai appliance. If your appliance
needs service, please ring one of the service contact numbers on
the back of this booklet. Rinnai recommend that this appliance
should be serviced every 3 years.
This appliance shall be installed in accordance with:
 ManufacturerÕs Installation Instructions.
 Current AS3500.4
 Current AS3000
 Local Water Authority Regulations.
 Local Gas Fitting Regulations.
 Municipal Building Codes.
 AS5601 / AG601 Gas Installations.
 Any other relevant Statutory Regulations.
This Infinity must be installed correctly by an authorized person. The installation
of gas, water, and electricity must conform to local regulations.
The installation must also comply with the instructions supplied by Rinnai.
Your heater has been approved by the Australian Gas Association
A.G.A. Approval Number shown on Data plate.
Please keep this instruction booklet in a safe place for future reference.
All dimensions referred to in these instructions are in millimeters, unless otherwise
specified.
N10378

- 2 -
CONTENTS
Features and Benefits ...................................................................................................3
Safety Points ................................................................................................................4
Warning About Hot Water ...........................................................................................6
Operation Without Temperature Controllers ...............................................................7
Temperature Controllers ..............................................................................................8
Standard Temperature Controllers ...............................................................................9
Operation with Standard Temperature Controllers .....................................................11
Using the Infinity with 1 Standard Temperature Controller .................................11
Using the Infinity with 2 or 3 Standard Temperature Controllers ........................12
Deluxe Temperature Controllers ................................................................................15
Deluxe Kitchen Temperature Controller................................................................15
Deluxe Kitchen Temperature Controller Monitor..................................................16
Deluxe Bathroom Temperature Controller.............................................................17
Deluxe Bathroom Temperature Controller Monitor ..............................................18
Using the Infinity with 1 Deluxe Temperature Controller.....................................19
Using the Infinity with 2 Deluxe Temperature Controllers ...................................21
Using the Infinity with 2 Deluxe Temperature Controllers and
1 Standard Temperature Controller........................................................................26
Using the Infinity with 3 Deluxe Temperature Controllers ...................................27
Troubleshooting............................................................................................................28
Warranty........................................................................................................................31
Service Contact Points..................................................................................................31

- 3 -
FEATURES AND BENEFITS
 The Rinnai Infinity NEVER RUNS OUT of hot water. Whilst electricity, water and gas supplies
are connected, hot water is available whenever hot water taps are open.
 Built into the main micro-processor is the facility to LIMIT THE MAXIMUM TEMPERATURE
of the hot water supplied. The water temperature may be limited to various maximum
temperatures. This is particularly useful when the hot water unit is installed where young children
or the infirm may be using the hot water. The Infinity is delivered with a preset temperature of
55C. If required, the temperature limits can be changed by an authorised person. For further
information, please contact Rinnai.
 The Rinnai Infinity is a power flued appliance. This makes it COMPACT, saving both floor and
wall space.
 The temperature of outgoing hot water is CONSTANTLY MONITORED by a BUILT-IN
SENSOR. If the temperature of the outgoing hot water rises to more than 3C above the selected
temperature shown on the Digital Monitor (or the pre-set limit when Temperature Controllers are
fitted) the outgoing hot water temperature falls to that shown on the Digital Monitor (or the pre-set
limit).
 The burner lights automatically when the hot water tap is opened, and goes out when the tap is
closed. IGNITION IS ELECTRONIC, so there is no pilot light. When the hot water tap is off, no
gas is used.
 ÔDeluxeÕ or ÔStandardÕ Temperature Controllers are available as an optional extra. Depending on
the models chosen, these offer the following additional features:
- Bath fill function
- Voice Prompting
- Localised Temperature Controllers for up to one kitchen and two bathrooms
- Clock
 Temperatures selected at the controls are retained in the SYSTEM MEMORY.
 Operating NOISE LEVEL IS VERY LOW.
 ERROR MESSAGES ARE DISPLAYED on the Temperature Controllers, assisting with service.
°
°

- 4 -
SAFETY POINTS
Always check water temperature by hand before
entering the shower or bath. At low water flows, the hot water unit may go out without warning.
Keep flammable materials, trees, shrubs etc.
away from the flue outlet.
Do not spray water directly into the flue terminal.
The hot water unit controls the water temperature
automatically. To do this it sometimes needs to
change the water flow accordingly. The water
flow from the hot water tap may vary after the
selected temperature at the Temperature
Controller is altered. The water flow may also
vary from summer to winter, as incoming water
temperatures differ.
If freezing conditions are expected, turn off water
and gas, and drain all water from the appliance.
Water Off



Gas Off



Drain Water
If power and the automatic
frost protection are connected,
freezing will be prevented.
(ÒKÓ Series only)
Do not touch cover or insert objects into the unit.
On cold days steam may be discharged from the
flue outlet. This is normal with a high efficiency
appliance and does not indicate a fault.
OFF
DRAIN
FILTER
WATERGAS
48°C°C55

- 5 -
SAFETY POINTS
Do not clean the Temperature Controller with
solvents. Use a soft damp cloth. When the hot water tap is open, and hot water is
flowing, the water temperature can only be
increased to a maximum of 43°C on the
Temperature Controller with priority.
If a temperature is higher than 50°C, and has
been selected at the Kitchen Controller and then
priority of temperature selection is transferred to
a Bathroom Controller and back again, the
temperature on the Kitchen Controller will drop
to 50°C. This is a safety feature.
Do not push the ON/OFF button on the Kitchen
Controller after having transferred priority of
temperature selection to the Bathroom Controller
as the system will no longer heat the water.
Turn OFF then ON.
WARNING
Someone may be about to enter a shower or fill
the bath.
Depending on the weather conditions and the
length of the pipe between the hot water unit and
the tap in use, there may be a variation between
the temperatures displayed at the Temperature
Controller(s) and the temperature of the water at
the tap.
There is no need to turn the Temperature
Controller(s) off after use. However, if you prefer
to turn the Temperature Controller(s) off,
selected temperatures will be stored in the system
memory at all times whilst mains power remains
connected.
o
C
Spray
43 C°
ONLY
48°C

- 6 -
WARNING ABOUT HOT WATER
Excessively hot water is dangerous, especially for young children and the infirm. The Infinity allows
you to control the temperature of your hot water to safe levels.
Water temperatures over 50°C can cause severe burns
instantly or death from scalds.
Children, disabled, and the elderly are at highest risk of
being scalded.
Feel water before bathing or showering.
Burns from hot water taps can result in very severe
injuries to young children.
Hot water at 65°C (the average hot water temperature
in Australia) can severely burn a child in less than half
a second. At 50°C it takes five minutes.
Burns can occur when children are exposed directly to
hot water or when they are placed into a bath which is
too hot.
BURN
HOT
DANGER
Do stay with children whenever they
are in the bathroom. (Take the phone
off the hook).
Do take them out of the bathroom if
you need to answer the phone or
door.
Do test the temperature of the water
with your elbow before placing your
child in the bath.
Do make sure that the tap is turned
off tightly.
Do consider setting your Infinity at a
maximum temp. of 50°C.
(Contact Rinnai Australia)
Do install a child proof tap cover OR,
Do install a child resistant tap.
DonÕt leave a toddler in the care of
another small child. The older child
may not have set the water temperature
to a safe level.
Consider child-resistant
taps or inexpensive tap
covers, both of which
prevent a small hand being
able to turn on the tap.
Consider reducing the
temperature of the water
coming from the hot
water tap to 50

°C.
This approach can be
extremely valuable
because it requires a one
time action for a long-term
reduction in the risk of
scalds.
This type of automatic
protection is important
during times when a
parent or carer has been
distracted.
DO
DONÕT

- 7 -
OPERATION WITHOUT TEMPERATURE CONTROLLERS
The Infinity has no pilot light and when installed without Temperature Controllers, the Infinity will
operate automatically as soon as a hot water tap is opened.
The burner ignites with electronic ignition and the flame extinguishes as soon as water flowing
through the appliance stops.
Simply, open a hot water tap.
The Infinity is factory pre-set to 55°C. If you require greater control over
the temperature of your hot water, contact Rinnai about our temperature
controllers to allow precise digital temperature control in the range
3
7
°
C
~ 55°
C.
Controllers can be easily fitted at any time after installation.
NOTE
NOTE
HOT COLD
55°C

- 8 -
TEMPERATURE CONTROLLERS
The purpose of the Temperature Controllers is to enable the user to have complete control over the
hot water unit. Used correctly, the hot water unit will supply hot water at the temperature selected,
even when the water flow is varied, or when more than one tap is used. Adjustments to the operation
of your hot water unit can be made with any of the Temperature Controllers. Each Temperature
Controller can be individually programmed.
Various water temperatures (°C) can be selected as follows:
Kitchen Controller:
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55°C
Bathroom Controller
Hot Water Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50°C
Bath fill Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48°C
If a temperature between 43°C and 50°C is selected on a Deluxe Bathroom Controller and this
temperature is then decreased to below 43°C and increased again whilst the water is running, the
maximum selectable temperature will become 43°C. This provides additional safety for the
consumer.
Suggested temperatures are:
Kitchen 50°C
Shower 42°C
Bath fill 40°C
These temperatures are suggested starting points for selection. You may find higher or lower
temperatures are more comfortable. Maintaining lower temperatures helps to save energy. To obtain
water temperatures lower than 37°C simply add cold water.
Temperature Controllers are an optional extra. ÔStandardÕ and ÔDeluxeÕ Temperature Controllers can
be fitted. Standard Controllers allow temperature selection only. Deluxe Controllers have
temperature selection, bath fill and clock functions.
Temperature Controllers allow the temperature to be set from various locations. The temperature
selected will be available to all outlets.
Controller Options
Model Deluxe Temperature Controllers Standard Temperature Controllers
Infinity 18
Infinity 20
Infinity 22
Infinity 24
MC-70-1A, BC-70-1A, BSC-45-3A
(Only one Bathroom Controller
with ÔBath fillÕfunction can be used
with this range of water heaters.)
MC-33-3A, BC-45-3A, BSC-45-3A
Infinity 32 MC-70-1A, BC-70-1A, BC-70-1A MC-33-3A, BC-45-3A, BSC-45-3A

- 9 -
STANDARD TEMPERATURE CONTROLLER
Standard Kitchen Temperature Controller (MC-33-3A)
Temperature Controllers are not required to operate the unit, they are a feature that provides control
over water temperature. Rinnai Infinity water heaters can be operated with 1, 2, 3 or no Temperature
Controllers.
* This Temperature Controller is also suitable for installation in laundry areas.
Use this control in installations where only one controller is required.
H
O
T
T
E
R
O
N
/
O
F
F
C
O
O
L
E
R
APPROX WATER TEMP
TEMPERATURE
CONTROL
MC - 33 - 3A
ON IN USE
o
C
DIGITAL
MONITOR
Indicates the temperature
selected. Error message
flashes in the event of a
fault.
ON INDICATOR
Indicates which temperature
controller is in control of
adjusting water temperature.
OPERATION
INDICATOR
Indicates that a hot water tap
is open (in any location).
MC-33-3A
Identifies this remote
control as for use in the
Kitchen.*
THERMOSTAT
To alter the temperature of
the water.
ON / OFF
Power switch to operate..

- 10 -
STANDARD TEMPERATURE CONTROLLER
Standard Bathroom Temperature Controller (BC-45-3A / BSC-45-3A)
* A third Temperature Controller identified as BSC-45-3A is
available for use in a second bathroom or ensuite.
This Temperature Controller is identical in appearance to the one shown on this page.
Do not use this control in installations with only one control.
Contact Rinnai for further details.
H
O
T
T
E
R
O
N
/
O
F
F
C
O
O
L
E
R
TEMPERATURE
CONTROL
ON
APPROX WATER TEMP
o
C
BC - 45 - 3A
IN USE
R
A
N
S
F
E
T
R
DIGITAL
MONITOR
Indicates the temperature
selected. Error code
flashes in the event of a
fault.
TRANSFER
Alternates the control of
temperature selection between
Kitchen and Bathroom
controller.
OPERATION
INDICATOR
Indicates that a hot water
tap is open (in any
location).
BC-45-3A
Identifies this remote
control as for use in
the bathroom.*
THERMOSTAT
To alter the temperature
of the water.
ON / OFF
Power switch to operate.
ON INDICATOR
Indicates which temperature
controller is in control of
adjusting water temperature.

- 11 -
OPERATION WITH STANDARD TEMPERATURE CONTROLLERS
Using the Infinity with 1 Standard Temperature Controller
Press the ON/OFF button on the Temperature Controller.
The yellow ON indicator will glow on the
Temperature Controller. This indicates that the hot
water unit is ready to supply hot water when a tap
is open.
To operate the hot water unit, simply turn any hot
water tap on. This will automatically light the
burner providing hot water. The red IN USE
indicator will glow on the Temperature Controller.
Adjusting Temperature
Simply press the HOTTER or COOLER
button until the required temperature is displayed
on the Digital Monitor.
O
N
/
O
F
F
ON
HOT COLD
IN USE
H
O
T
T
E
R
C
O
O
L
E
R
CHECK WATER TEMPERATURE BEFORE ENTERING SHOWER OR BATH.
Always test the water temperature in bath before a child gets in. This is best done by the
parent placing their elbow in the water .
NOTE
When any hot water tap is open, temperature cannot be adjusted except between 37°C
and 43°C.
NOTE

- 12 -
OPERATION WITH STANDARD TEMPERATURE CONTROLLERS
Using the Infinity with 2 or 3 Standard Temperature Controllers
To TURN ON your hot water system when the Temperature Controllers are connected, press the
ON/OFF button on any Temperature Controller.
Using 2 Standard Temperature Controllers
Using 3 Standard Temperature Controllers
See page 11 for details on operating and adjusting water temperature with the Temperature
Controllers.
Each Temperature Controller is capable of storing a separate temperature selection in the system
memory.
The Transfer function enables priority temperature selection to be switched between the controllers.
See page 13 for details on how to use the Transfer function.
The temperature displayed on the digital monitor is the temperature hot water will be supplied at
throughout the house.

- 13 -
OPERATION WITH STANDARD TEMPERATURE CONTROLLERS
The Transfer button on the Bathroom Controller enables you to select and lock the preferred
temperature for shower or bath water. When locked in, this selected temperature cannot be overridden
by any other controller.
To transfer priority of water temperature
selection to the Bathroom Controller, simply
press the TRANSFER button on the Bathroom
Controller.
The ON indicator on the Bathroom Controller
will glow to indicate that priority of water
temperature selection has been transferred to
the Bathroom Controller.
The water temperature can now be selected using the Bathroom
Controller. The maximum temperature which can be selected at
the Bathroom Controller is 50°C (whilst there is no water
running). This is to help reduce the risk of burns from hot water.
A different temperature can be stored in the system memory of
the Bathroom and Kitchen Controllers.
To transfer priority of water temperature
selection back to the Kitchen Controller,
simply press the TRANSFER button
again.
The temperature displayed will then
return to the temperature which was
previously selected at the Kitchen
Controller, or 50°C, whichever is
lower.
The ON indicator on the Kitchen
Controller will glow to indicate priority
control of water temperature selection.
Priority temperature selection cannot be transferred when a hot water tap is open.
NOTE

- 14 -
OPERATION WITH STANDARD TEMPERATURE CONTROLLERS
To TURN OFF your hot water system
Simply press the ON/OFF button on any
Temperature Controller (where fitted). This will
shut the Infinity down completely including the
Temperature Controller digital displays.
The ON indicator will go out.
If hot water taps are opened when the Infinity is
OFF, cold water will flow from the taps.
Additional SAFETY features
Whilst the hot water tap is open, the following
safety features apply.
 Temperature selection cannot be transferred.
 Water temperature can only be adjusted between
37°C and 43°C.
 The Kitchen and Bathroom Control cannot be
turned ON.
O
N
/
O
F
F
ON
The temperature of outgoing hot water is constantly monitored by a built-in sensor. If the
temperature of the outgoing hot water rises to more than 3°C above the selected temperature
shown on the Digital Monitor or the pre-set limit when Temperature Controllers are not fitted,
the burner will automatically go out. The red operation indicator will also go out. The burner
will ignite again once the outgoing hot water temperature falls to that shown on the Digital
Monitor (or the pre-set limit).
NOTE

- 15 -
DELUXE TEMPERATURE CONTROLLER
Deluxe Kitchen Temperature Controller (MC-70-1A)
This temperature controller is installed in the kitchen. Each button confirms its operation with a beep
and / or voice.
DIGITAL
MONITOR
Indicates the water
temperature, mode of
o
p
eration
,
and clock.
TRANSFER BUTTON
(Green)
Used to transfer priority
between the temperature
controllers.
CLOCK BUTTON
Used to select the
clock function.
HOUR/MIN.
BUTTONS
Used to select the hours
and minutes of the clock.
Clock Hour Min.
Vol.
Bath
C
AM L
Hot water
temp.
00 00
ON/OFF
MC -70 -1A
Transfer
Sound Cooler Hotter
SOUND VOLUME
Used to change the
voice volume.
ON/OFF BUTTON
Used to switch temperature
controllers on and off.
SPEAKER
TEMPERATURE
CONTROL BUTTONS
Used to select water
temperature. ÒUPÓ /
ÒDOWNÓbuttons are
also located on the lid.
Be careful not to get water in the speaker as it may cause damage.
CAUTION

- 16 -
DELUXE TEMPERATURE CONTROLLER
Deluxe Kitchen Temperature Controller Monitor
HOT WATER TEMP.
INDICATOR
Indicates hot water or bath
fill temperature selected.
Bath C
AM L
PM
BATH FILL
INDICATOR (Green)
Indicates the bath is filling.
COMBUSTION
INDICATOR (Red)
Shows when hot water is
used.
ERROR INDICATOR
Flashes an error code if
there is a fault.
CLOCK
Each time a button is pressed, a ÔbeepÕwill sound.
The ÔbeepÕsound and the Ôbath fill completeÕbuzzer can be muted by pressing the
Temperature Controller Up and Down buttons simultaneously for more than 3 seconds.
This can be done for each Temperature Controller.
To return to ori
g
inal settin
g
s, re
p
eat this ste
p
.
NOTE

- 17 -
DELUXE TEMPERATURE CONTROLLER
Deluxe Bathroom Temperature Controller (BC-70-1A)
This temperature controller is installed in the bathroom. Each button confirms its operation with a
beep and / or voice.
TRANSFER BUTTON
(Green)
Used to transfer priority
between the temperature
controllers.
ON/OFF BUTTON
Used to switch
temperature
controllers on and off.
SPEAKE
R
BATH TEMP.
BUTTONS
Used to select bath fill
temperature.
WATER VOLUME
BUTTONS
Used to select bath fill
volume.
Sound
ON/OFF
Transfer
Bath temp.
Water Vol.
C
C
Bath Fill
Hot water temp.
Vol.
BC - 70 - 1A
DIGITAL MONITOR
Indicates the hot water
temperature, bath fill
temperature, bath level,
bath volume, and the
mode of operation.
SOUND VOLUME
BUTTON
Used to change the
voice volume.
TEMPERATURE
CONTROL BUTTONS
Used to select water
temperature.
BATH FILL
BUTTON (orange)
Used to select bath fill
function.
Be careful not to get water in the speaker as it may cause damage.
CAUTION

- 18 -
DELUXE TEMPERATURE CONTROLLER
Deluxe Bathroom Temperature Controller Monitor
HOT WATER TEMP.
INDICATOR
Indicates hot water
temperature selected.
HOT WATER
COMBUSTION
INDICATOR (Red)
Shows when hot water is
used.
ERROR INDICATOR
Flashes an error code if
there is a fault
CLOCK
C
C
BATH COMBUSTION
INDICATOR (Red)
Shows when bath fill
function has been selected
and the bath is filling.
REMAINING WATER
VOLUME INDICATOR
Indicates how much water
still needs to flow for the
bath to be filled to the
selected volume
(decreases as bath fills).
WATER LEVEL
INDICATOR
Indicates bath fill volume
selected.
BATH TEMP.
INDICATOR
Indicates bath fill
temperature selected.
WATER VOLUME
INDICATOR
Indicates water volume
selected (reverts to bath fill
temperature after 5 seconds).
Each time a button is pressed, a ÔbeepÕwill sound.
The ÔbeepÕsound and the Ôbath fill completeÕbuzzer can be muted by pressing the
Temperature Controller Up and Down buttons simultaneously for more than 3 seconds.
This can be done for each Temperature Controller.
To return to original settings, repeat this step.
NOTE

- 19 -
OPERATION WITH DELUXE TEMPERATURE CONTROLLERS
Using the Infinity with 1 Deluxe Temperature Controller
When one Temperature Controller is required, the kitchen model
must be used (MC-70-1A).
Switching the system ON
The hot water system and controller can be switched on and off
pressing the ÔON/OFFÕbutton as shown.
When the system is turned on, the monitor will be lit. During
normal operation the system is left on.
Setting the Clock
The clock is of the 12 hour AM/PM type.
Press the ÔClockÕbutton. The digital monitor will flash AM 12:00.
Set the time using the ÔHourÕand ÔMin.Õ
buttons. The time is displayed on the monitor
as the buttons are pressed.
The numbers on the monitor will continuously
change if you keep the buttons depressed.
When you get close to the desired time, press
the button intermittently.
Press the ÔClockÕ button again to activate the
clock.
Clock Hour Min.
Vol.
C
AM
Hot water
temp.
00 00
ON/OFF
MC-70 -1A
Transfer
Sound Cooler Hotter
Clock Hour Min.
Vol.
C
AM
Hot water
temp.
00 00
ON/OFF
MC -70 -1A
Transfer
Sound Cooler Hotter
Clock Hour Min.
Vol.
C
AM
00 00
ON/OFF
Sound
Clock Hour Min.
Vol.
C
AM
00 00
ON/OFF
Sound
Clock Hour Min.
Vol.
C
AM
00 00
ON/OFF Sound
The time is always displayed regardless of whether the Temperature Controller is turned ON or OFF.
The clock may need to be reset after a power failure.
NOTE