Rinnai Infinity 26 Smartstart User manual

To Suit Water Heater Model:
INFINITY 26 SMARTSTART REU-VR2626WGP
Operation / Installation
Manual
Rinnai INFINITY 26 Smartstart
water heater with preheat function
This appliance shall be installed in accordance with:
• Manufacturer’s Installation Instructions
• Current AS/NZS 3000, AS/NZS 3500 & AS 5601
• Local Regulations and Municipal Building Codes including local OH&S requirements
This appliance must be installed, maintained and removed by an Authorised Person.
For continued safety of this appliance it must be installed operated and maintained
in accordance with the manufacturers instructions.
Quality
ISO 9001

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Rinnai Australia ii Operation Manual
REGULATORY INFORMATION..................................................................................1
WARNING ABOUT HOT WATER ...............................................................................1
FEATURES AND BENEFITS ......................................................................................2
IMPORTANT INFORMATION .....................................................................................3
GENERAL WATER CONTROL INFORMATION ........................................................5
UNIVERSAL WATER CONTROLLER ........................................................................6
ABOUT THE UNIVERSAL WATER CONTROLLER (MC-91Q)................................................................... 6
TURNING ON THE CONTROLLER............................................................................................................. 6
ADJUSTING TEMPERATURE..................................................................................................................... 6
HOW TO USE TWO OR MORE UNIVERSAL WATER CONTROLLERS ................................................... 7
TRANSFERRING PRIORITY ....................................................................................................................... 7
ADJUSTING TEMPERATURE..................................................................................................................... 7
DELUXE KITCHEN WATER CONTROLLER..............................................................8
ABOUT THE DELUXE KITCHEN WATER CONTROLLER (MC-100V) ...................................................... 8
TURNING ON THE CONTROLLER............................................................................................................. 8
SETTING THE SOUND OPTIONS .............................................................................................................. 8
SETTING THE CLOCK ................................................................................................................................ 9
ADJUSTING TEMPERATURE..................................................................................................................... 9
DELUXE BATHROOM WATER CONTROLLER ......................................................10
ABOUT THE DELUXE BATHROOM WATER CONTROLLER (BC-100V) ................................................ 10
TURNING ON THE CONTROLLER........................................................................................................... 10
SETTING THE SOUND OPTIONS ............................................................................................................ 11
SETTING THE CLOCK .............................................................................................................................. 11
ADJUSTING TEMPERATURE................................................................................................................... 11
OPERATING THE SHOWER SAVER / BATH FILL FUNCTION ............................................................... 12
USING MULTIPLE WATER CONTROLLERS ........................................................................................... 13
COMBINING UNIVERSAL AND DELUXE WATER CONTROLLERS ....................................................... 13
SMARTSTART PREHEAT OPERATION ..................................................................14
ABOUT THE SMARTSTART PREHEAT SYSTEM.................................................................................... 14
TROUBLESHOOTING...............................................................................................15
INSTALLATION MANUAL ........................................................................................17
ACCESSORIES ........................................................................................................31
PRODUCT RECORDS .............................................................................................31
CONTACT INFORMATION ......................................................................................32
OPERATION MANUAL

Rinnai Australia iii Operation Manual
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Rinnai Australia 1 Operation Manual
Your Rinnai Continuous Flow water heater has been certified by the Australian Gas Association.
The A.G.A. Certification Number is shown on the data plate.
This Appliance must be installed correctly by an authorised person. The installation of gas, water, and
electricity must conform to local regulations.
The installation must also comply with the instructions supplied by Rinnai.
All dimensions referred to in these instructions are in millimetres, unless otherwise specified.
Please keep this instruction booklet in a safe place for future reference.
Notice to Victorian Consumers
This appliance must be installed by a person licensed with the Plumbing Industry Commission.
Only a licensed person will have insurance protecting their workmanship.
So make sure you use a licensed person to install this appliance and ask for your Compliance
Certificate. For Further information contact the Plumbing Industry Commission on 1800 015 129.
The Rinnai "Smartstart" function incorporated in this water heater can preheat the
water in the pipework between the water heater and the hot water outlets. This
results in water savings and reduces waiting time for heated water at the outlets.
The energy consumption on the energy star rating label on the appliance relates
only to the task of heating water intended for immediate consumption. It does not
include the energy consumed by the Rinnai “Smartstart” function to preheat
pipework as this will vary depending on application.
Heated water can be dangerous, especially for young
children and the infirm.
Water temperatures above 50°C can cause severe burns
instantly and may even result in death.
Those most at risk are children, disabled, elderly and the
infirm.
Hot water at 65°C (a very common hot water temperature in
Australia) can severely burn a child in less than half a second.
At 50°C it takes five minutes.
ALWAYS......
Test the temperature of the water with your elbow before placing your child in the bath, also
carefully feel water before bathing or showering yourself.
Supervise children whenever they are in the bathroom.
Make sure that the hot water tap is turned off tightly.
CONSIDER.....
Installing child proof tap covers or child resistant taps (both approaches will prevent a small
hand being able to turn on the tap).
Setting your appliance at a maximum temperature of 50°C (Contact Rinnai Australia).
NEVER…..
Leave a toddler in the care of another child. They may not understand the need to have the
water temperature set at a safe level.
NOTE
REGULATORY INFORMATION
WARNING ABOUT HOT WATER

Rinnai Australia 2 Operation Manual
FEATURES AND BENEFITS
Congratulations on purchasing the latest technology temperature controlled Rinnai continuous flow
water heating system with preheat function.
•The Rinnai Continuous Flow water heater products NEVER RUN 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 values. This is particularly
useful when the hot water unit is installed where young children or the infirm may be using the hot
water.
•The Rinnai Continuous Flow water heater products are power flued appliances. This makes them
COMPACT, saving both floor and wall space.
•The temperature of hot water is CONSTANTLY MONITORED by a BUILT-IN SENSOR. If the
temperature of the hot water rises to more than 3°C above the selected temperature the burner is
turned OFF and only turned ON again when the temperature falls below the selected temperature.
•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.
•The Smartstart system fitted in this unit preheats the water in the pipework between the water
heater and the hot water outlets. This results in water savings and reduces waiting time for heated
water at the outlets.
•'Deluxe' or 'Universal' Water Controllers are available for this appliance. Depending on the models
chosen, these offer the following features:
• Bath fill function (Deluxe Bathroom Control Only).
• Voice Prompting (Deluxe Control Only).
• Clock (Deluxe Control Only).
• Up to four water controllers can be fitted. See page 5 for details.
• Water controller cables are connected easily by the end user using a convenient quick connect
system.
•Operating NOISE LEVEL IS VERY LOW.
•ERROR MESSAGES ARE DISPLAYED on the Water Controllers.

Rinnai Australia 3 Operation Manual
IMPORTANT INFORMATION
The Rinnai INFINITY 26 Smartstart is INCOMPATIBLE with solar water heating
systems. A dedicated range of solar compatible continuous flow water heaters is
available from Rinnai. This appliance is factory pre-set to a temperature limit of
50°C or 55°C. Other limits, lower or higher are available on request.
Always check water temperature carefully before
use. Refer to the WARNING ABOUT HOT WATER
on "page 1" of this manual for important safety
information.
At low water flows, the hot water unit may extinguish
without warning. Opening the tap further will restart
the appliance.
Do Not touch the unit cover or the flue outlet.
Do Not insert objects into the flue outlet.
On colder days steam may discharged from the flue
outlet. This condition is normal for high efficiency
appliances and does not indicate a fault.
Keep flammable materials, spray cans, fuel
containers, pool chemicals, trees, shrubs, etc. well
clear of the flue outlet.
Do Not spray water directly into the flue terminal.
Anti-frost protection is fitted as standard equipment
on this model. When the power is connected and
switched on, freezing will be prevented.
If the power is switched off and freezing conditions
are expected, turn off water and gas and drain all
water from the appliance.
The delivered water temperature is controlled
automatically. The flow may vary depending on the
delivery temperature selected and the ambient water
temperature.
NOTE
OFF!
HOT!
Turn Water Off
Turn Gas Off
Drain Water
Filter
Filter
Gas
Valve
Drain
Heating
Loop Return
Hot Cold Gas
43°C
55°C

Rinnai Australia 4 Operation Manual
IMPORTANT INFORMATION
To clean your water controller(s) use a soft
damp cloth with a mild detergent.
Do Not use solvents!
Whilst hot water outlets are open the set
temperature may be lowered. However they
cannot then be raised above 43°C. In addition
transfer of 'priority' between controllers is not
possible. These are safety features.
Depending on the weather conditions and the
length of the pipe between the hot water unit
and the outlet in use, there may be a variation
between the temperatures displayed at the
water controller(s) and the temperature of the
water at the outlet.
There is no need to turn the water controller(s)
off after use. However, if you prefer to turn the
water controller(s) off, selected temperatures
to a maximum of 50°C will be stored in the
system memory at all times whilst mains power
remains connected.
As a safety precaution, if a Kitchen Controller's
temperature is set above 50°C, transferring
and then returning 'priority' to the Kitchen
Controller will result in a default set
temperature of 50°C being selected. This is a
safety feature.
Do Not push the On/Off button on any
Controller when the ‘Red’ water heater ‘In Use’
indicator is illuminated as this will turn off the
water heater causing the water to go cold.
Someone maybe in the middle of having a
shower or filling a bath.
S
O
L
V
E
N
T
Max.
43°C
49°C
50°C
Kitchen Kitchen
Bathroom

Rinnai Australia 5 Operation Manual
GENERAL WATER CONTROL INFORMATION
When used correctly, the hot water unit will deliver the selected temperature, even when the water
flow is varied, or more than one tap is in use. Each water controller can be individually programmed,
however the water heater can only deliver one set temperature at any time. The available
temperatures (°C) are as follows:
Kitchen Controller:
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55*, 60°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
Whilst hot water outlets are open the set temperature may be lowered. However the set temperature
cannot then be raised above 43°C. In addition, transfer of 'priority' between water controllers is not
possible. These are safety features.
Suggested temperatures are:
Kitchen 50°C ~ 55°C* Shower 37°C ~ 43°C, Bath fill 39°C ~ 45°C
* Temperature not available on Compliant to 50°C models.
These temperatures are suggestions only. You may find higher or lower temperatures more
comfortable. Maintaining lower temperatures helps save energy. To obtain water temperatures lower
than 37°C simply add cold water.
Additional 'Universal' and 'Deluxe' water controllers are available for this appliance.
Universal water controllers allow temperature selection only. Deluxe water controllers allow
temperature selection, shower saver / bath fill and have a clock function.
Water controllers allow the water temperature to be set from the various locations where they are
installed. The temperature selected will be available to all outlets.
Universal (MC-91Q) and Deluxe (MC/BC-100V) Water Controllers - available configurations:
To enable activation of the Smartstart preheat function and for precise
temperature control at least one water controller MUST BE fitted to this appliance.
A maximum of 4 water controllers can be fitted. Any combination of both deluxe and universal
controllers can be used with the following provisions:
Only ONE MC-100V water controller can be installed.
Up to TWO BC-100V water controllers can be installed.
The FOURTH water controllers in any installation MUST BE a MC-91Q.
IMPORTANT

Rinnai 6 Operation Manual
UNIVERSAL WATER CONTROLLER
ABOUT THE UNIVERSAL WATER CONTROLLER (MC-91Q)
TURNING ON THE CONTROLLER
If the water controller is switched off (No digits displayed in the
digital monitor window) press the On/Off button once.
The ON indicator will illuminate, indicating that the hot water unit
will be ready to supply hot water once a hot water tap is opened.
ADJUSTING TEMPERATURE
Select the desired temperature using 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 water
heater ‘In Use’ indicator will illuminate on the water 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.
CHECK WATER TEMPERATURE BEFORE USE.
A parent or carer should always check the temperature before a child is placed
in contact with hot water, see page 1.
Whilst hot water outlets are open the set temperature may be lowered. However
they cannot then be raised above 43°C. In addition, transfer of 'priority' between
controllers is not possible. These are safety features.
The 'beep' sound can be muted by pressing the 'Hot water temp' Up and
Down buttons simultaneously for more than 3 seconds.
Indicates the temperature
selected. Error message flash in
event of a fault.
DIGITAL MONITOR
Used to select water temperature.
TEMPER ATURE
CONTRO L BUTTONS
Indicates if this temperature
controller is in control of water
delivery temperature.
CONTROLLER
ON INDICATOR
Indicates that the preheat function
is activated, See Smartstart
preheat operation on page 14.
PREHE AT INDIC ATOR
Used to switch the water heater
on and off.
ON/OFF BUTTON
Used to start ans stop the preheat
function of the appliance.
PREHEAT BUTTON
Used to transfer control priority
between the temperature
controllers. The controller with
priority has command of the hot
water delivery temperature.
TRANSFER BUTTON
Indicates that a water heater is in
operation and delivering hot
water.
WATER HEATER
'In Use' INDICATOR
HOTHOT
COLDCOLD
ON!ON!
CAUTION
NOTE