Rinnai REU-VR3237WG, REU-VR2626WG, Plus REU-VRM2630WD, REU-VR2632FFUG, REU-VR2024WG User Manual

Operation / Installation

Manual

Rinnai continuous flow water heaters

To Suit Water Heater Models ­INFINITY 32 REU-VR3237WG
INFINITY 26 REU-VR2626WG
INFINITY 26 Plus REU-VRM2630WD
INFINITY 26i REU-VR2632FFUG
INFINITY 20 REU-VR2024WG
INFINITY 16 REU-VR1620WG
INFINITY ENVIRO 32 REU-KM3237WD
INFINITY ENVIRO 26 REU-KM2635WD
B16 REU-VR1620WB
B20 REU-VR2024WB
B24 REU-VR2426WB
HD250e REU-VRM3237WC
HD200e REU-VRM2632WC
HD200i REU-VRM2632FFUC

This appliance shall be installed in accordance with:

• Manufacturer’s Installation Instructions

• Current AS/NZS 3000, AS/NZS 3500 & AS/NZS 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.

TABLE OF CONTENTS

REGULATORY INFORMATION..................................................................................1

WARNING ABOUT HOT WATER ...............................................................................1

FEATURES AND BENEFITS ......................................................................................2

IMPORTANT INFORMATION .....................................................................................3

OPERATION WITHOUT CONTROLLERS..................................................................5

GENERAL WATER CONTROL INFORMATION ........................................................6

MAXIMUM DELIVERY TEMPERATURES...................................................................................................6

UNIVERSAL WATER CONTROLLERS......................................................................8

ABOUT THE UNIVERSAL WATER CONTROLLER (MC-91Q)................................................................... 8

TURNING ON THE CONTROLLER............................................................................................................. 8

ADJUSTING TEMPERATURE..................................................................................................................... 8

HOW TO USE TWO OR MORE UNIVERSAL WATER CONTROLLERS ................................................... 9

TRANSFERRING PRIORITY ....................................................................................................................... 9

ADJUSTING TEMPERATURE..................................................................................................................... 9

DELUXE BATHROOM WATER CONTROLLERS ....................................................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

DELUXE KITCHEN WATER CONTROLLERS .........................................................14

ABOUT THE DELUXE KITCHEN WATER CONTROLLER (MC-100V) .................................................... 14

TURNING ON THE CONTROLLER........................................................................................................... 14

SETTING THE SOUND OPTIONS ............................................................................................................ 14

SETTING THE CLOCK .............................................................................................................................. 15

ADJUSTING TEMPERATURE................................................................................................................... 15

SMARTSTART® PRE-HEAT OPERATION ..............................................................16

ABOUT THE SMARTSTART® PREHEAT SYSTEM ................................................................................. 16

TROUBLESHOOTING...............................................................................................17

INSTALLATION MANUAL ........................................................................................20

ACCESSORIES ........................................................................................................36

PRODUCT RECORDS .............................................................................................36

CONTACT INFORMATION ......................................................................................37

Rinnai Australia i Operation Manual

REGULATORY INFORMATION

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.

WARNING ABOUT HOT WATER

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.

Rinnai Australia 1 Operation Manual

FEATURES AND BENEFITS

Congratulations on purchasing the latest technology temperature controlled Rinnai continuous flow
water heating system.

• 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 when fitted can pre-heat the water in the pipe-work 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 as an optional extra. 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 7 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 and Status Monitor*, assisting with

service. *Status Monitor available on INFINITY 26 Plus (REU-VRM2630WD), HD250e (REU­VRM3237WC), HD200e (REU-VRM2632WC) and HD200i (REU-VRM2632FFUC) models only.

Rinnai Australia 2 Operation Manual

NOTE

IMPORTANT INFORMATION

The range of Rinnai continuous flow water heaters referred to in this manual are
incompatible with solar water heating systems. A dedicated range of solar
compatible continuous flow water heaters is available from Rinnai.

OFF!

Always check water temperature carefully before
use. Refer to the WARNING ABOUT HOT WATER
on "page 1" of this manual for important safety
information.

HOT!

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.

At low water flows, the hot water unit may extinguish
without warning. Opening the tap further will restart
the appliance.

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.

43°C

Turn Water Off

5

5

C

°

Filter

Drain

Turn Gas Off

Gas

Valve

Drain Water

GasColdHot

If freezing conditions are expected, turn off water and
gas and drain all water from the appliance. If power
and the automatic frost protection are connected,
freezing will be prevented. (Anti-frost protection is
fitted as standard equipment on External units and is
available as an optional extra on Internal Units)

Rinnai Australia 3 Operation Manual

The delivered water temperature is controlled
automatically. The flow may vary depending on the
delivery temperature selected and the ambient water
temperature.

IMPORTANT INFORMATION

S

O

L

V

E

N

T

Max.
43°C

To clean your water controller(s) use a soft
damp cloth with a mild detergent.

Do Not use solvents!

49°C

50°C

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.

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.

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.

Bathroom

Kitchen

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.

Rinnai Australia 4 Operation Manual

Kitchen

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.

OPERATION WITHOUT CONTROLLERS

Rinnai Continuous Flow water heater products do not use a pilot light.

When installed and operated without water controllers, the opening of any hot water tap will
automatically start the appliance.

Once water is flowing through the appliance the burner will be ignited by electronic ignition.

When the hot water tap is closed and water flowing through the appliance has stopped the burner
flame will extinguish.

CAUTION

ON!ON!

HOTHOT

COLDCOLD

ON!ON!

OFF!OFF!

HOTHOT

COLDCOLD

OFF!OFF!

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.

Rinnai Australia 5 Operation Manual

GENERAL WATER CONTROL INFORMATION

MAXIMUM DELIVERY TEMPERATURES

Rinnai continuous flow water heaters are factory pre-set to various maximum delivery temperatures
depending on model and their intended application. For the majority of applications, the factory pre­set temperature is appropriate. In the unlikely event this is not the case this setting can be increased
or decreased by an authorised person such as a licensed plumber.

This does not apply to “50 degree compliant” or “Solar” models. To meet the

NOTE

Factory pre-set delivery temperatures for the various models are as follows:

regulatory requirements for these models, the maximum delivery temperature is
factory set and sealed.

MODEL NUMBER

Note: The model number is

written on the dataplate on

the left hand side of

appliance

REU-VR1620WG INFINITY 16 60 Yes

REU-VR2024WG INFINITY 20 60 Yes

REU-VR2626WG INFINITY 26 60 Yes

REU-VR2632FFUG INFINITY 26 Internal 60 Yes

REU-VRM2630WD INFINITY 26 Plus 60 Yes

REU-VR3237WG INFINITY 32 60 Yes

REU-KM2635WD ENVIRO 26 60 Yes

REU-KM3237WD ENVIRO 32 60 Yes

REU-VR1620WG-50 INFINITY 16 - 50°C Compliant 50 No

REU-VR2024WG-50 INFINITY 20 - 50°C Compliant 50 No

REU-VR2626WG-50 INFINITY 26 - 50°C Compliant 50 No

MODEL NAME FACTORY “PRE-SET”

MAXIMUM
DELIVERY

TEMPERATURE (°C)

TEMPERATURE BE

CHANGED BY AN

CAN FACTORY

“PRE-SET”

MAXIMUM
DELIVERY

AUTHORISED

PERSON?

REU-VR3237WG-50 INFINITY 32 - 50°C Compliant 50 No

REU-VR2632FFUG-50 INFINITY 26 Internal - 50°C

Compliant

REU-VR1620WB B16 60 Yes

REU-VR2024WB B20 60 Yes

REU-VR2426WB B24 60 Yes

REU-VR1620WB-50 B16 - 50°C Compliant 50 No

REU-VR2024WB-50 B20 - 50°C Compliant 50 No

REU-VR2426WB-50 B24 - 50°C Compliant 50 No

REU-VRM2632WC HD200e 75 Yes

REU-VRM2632FFUC HD200i 75 Yes

REU-VRM3237WC HD250e 75 Yes

REU-VRM2632WC-50 HD200e - 50°C Compliant 50 No

REU-VRM2632FFUC-50 HD200i - 50°C Compliant 50 No

REU-VRM3237WC-50 HD250e - 50°C Compliant 50 No

50 No

Rinnai Australia 6 Operation Manual

GENERAL WATER CONTROL INFORMATION

Remote water controllers allow precise temperature control by the user. 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*, 65* and 75°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 may not be available refer to “Delivery Temperatures”.

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.

Water controllers are an optional extra. 'Universal' and 'Deluxe' water controllers can be fitted.
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:

A maximum of 4 water controllers can be fitted. Any combination of both deluxe and
universal controllers can be used with the following provisions:

All

Models

Only ONE

Up to TWO

The FOURTH

MC-100V water controller can be installed.

BC-100V water controllers can be installed.

water controllers in any installation MUST BE a MC-91Q.

Rinnai Australia 7 Operation Manual

UNIVERSAL WATER CONTROLLERS

HOTHOT

COLDCOLD

ON!ON!

ABOUT THE UNIVERSAL WATER CONTROLLER (MC-91Q)

WATER HEATER

'In Use' INDICATOR

Indicates that a water heater is in
operation and delivering hot
water.

DIGITAL MONITOR

Indicates the temperature
selected. Error message flash in
event of a fault.

TEMPER ATURE

CONTRO L BUTTONS

Used to select water temperature.

CONTROLLER
ON INDICATOR

Indicates if this temperature
controller is in control of water
delivery temperature.

WARNING

Check the ‘ON indicator’ light is lit before turning on the tap.
Please read the ‘Operation/Installation’ Manual carefully to
ensure safe and correct operation.

PREHEAT INDICATOR

Indicates that the Smartstart®
preheater (when fitted)is
activated.

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.

PREHE AT BUTTON

Used to start and stop the
Smartstart® preheat unit (when
fitted), See Smartstart® Operation
on page 16.

TRANSFER BUTTON

Used to transfer control priority
between the temperature
controllers. The controller with
priority has command of the hot
water delivery temperature.

ON/OFF BUTTON

Used to switch the water heater
on and off.

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

CAUTION

in contact with hot water, see page 5.

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

NOTE

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.

Rinnai 8 Operation Manual

UNIVERSAL WATER CONTROLLERS

HOTHOT

COLDCOLD

ON!ON!

HOW TO USE TWO OR MORE UNIVERSAL WATER CONTROLLERS

TURNING ON THE CONTROLLERS

If the controllers are switched off (No digits displayed in the digital
monitor window) press the On/Off button once at any controller.

The ON indicator on the desired controller will illuminate,
indicating that the hot water unit will be ready to supply hot water
once a hot water tap is opened.

TRANSFERRING PRIORITY

An illuminated On/Off indicator confirms that the desired controller
is in control of the water delivery temperature, if the On/Off
indicator is not illuminated press the TRANSFER button once.

The On/Off indicator on the controller will now illuminate indicating
that hot water temperature control has now been transferred to
this controller and 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

CAUTION

in contact with hot water, see page 5.

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

NOTE

controllers is not possible. These are safety features.

Temperatures higher than 50ºC should not be able to be selected on controllers
installed in bathrooms, ensuites or toilets. This is to help reduce the risk of burns
from hot water. If this is not the case, the controllers have been incorrectly
installed. CONTACT YOUR INSTALLER.

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
water controllers are not fitted, the burner will automatically go out. The ‘in use’
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
of the appliance).

Rinnai 9 Operation Manual

DELUXE BATHROOM WATER CONTROLLERS

ABOUT THE DELUXE BATHROOM WATER CONTROLLER (BC-100V)

WATER TEMPER ATURE

INDICATOR

Indicates the selected hot water
temperature.

WATER HEATER

'In Use' INDICATOR

Indicatesthatthewaterheaterisin
operation and delivering hot water.

TRANSFER BUTTON

Used to transfer control priority between
the Water Controllers. The controller with
priority has command of the hot water
delivery temperature. This button is
illuminated when this controller has
priority.

PREHE AT BUTTON

Used to start and stop the Smartstart®
preheat unit (when fitted), See
Smartstart® Operation on page 16.

This button is illuminated when the
Smartstart® preheater (when fitted) is
activated.

WATER LEVEL INDICATOR

Indicates Shower Saver / Bath Fill volume
selected.

SHOWER SAVER /

BATH FILL INDICATOR

Indicates that the Shower Saver / Bath
Fill function has been selected and that
a shower is running or the bath is filling.

DIGITAL

MONITOR

SHOWER SAVER /

BATH FILL BUTTON

Used to select Shower Saver / Bath Fill
function. This button is illuminated when
the Shower Saver / Bath Fill function is
selected.

ON/OFF BUTTON

Used to switch the water heater on and
off. This button is illuminated when the
hot water heating system is on.

SPEAKER

CLOCK & REMAINING WATER

VOLUME INDICATOR

12 Hour AM / PM clock display.

Indicates how much water remains to
flow for the selected Shower Saver /
Bath Fill volume, decreasin g while
shower runs or bath fills.

In the event of a fault, error message
codes will flash here.

TEMPERATURE BUTTONS

In Normal and Shower Saver / Bath Fill
modes these buttons are used to select
the water temperature.

In 'Clock' mode these button are used to
set the clock.

Refer to page 7 to confirm the maximum number and combination of controllers

NOTE

that can be fitted to your Water Heater model.

Avoid getting water directly in the speaker as this may cause damage.

TURNING ON THE CONTROLLER

If the controller is switched off (No digits other than the
clock digits displayed in the digital monitor) press the
On/Off button once.

The On/Off and Transfer buttons illuminate to indicate
that the hot water unit will be ready to supply hot water
once a hot water tap is opened.

WATER VOLUME BUTTONS

Used to select Shower Saver / Bath Fill
volumes.

CLOCK SETTING BUTTON

Used select clock setting mode.

SOUND VOLUME BUTTON

Used to select the voice and audible tone
options.

If more than one controller is fitted press the ‘Transfer’

button to transfer priority to the desired controller.

Rinnai Australia 10 Operation Manual

DELUXE BATHROOM WATER CONTROLLERS

HOTHOT

COLDCOLD

ON!ON!

SETTING THE SOUND OPTIONS

To set the sound options press the 'Sound Volume' button and select the desired audible setting
as follows:

Voice High, Med, Low or Off, sets the voice prompt volume but does not affect the audible tones.
Sound OFF, mutes all voice prompts and audible tones.

Press any of the or buttons to return to normal mode, if no buttons are pressed for a period
of approximately 10 seconds the controller will return to normal mode

SETTING THE CLOCK

The clock is a 12 hour AM/PM style display.

To set the time press the 'Clock' button once, this
places the controller into clock setting mode, in the
digital monitor the clock digits will flash, if this is the first
time the clock has been set the starting time will be AM
12:00.

Use the ‘Temperature’ or buttons to select the
desired time, holding these buttons down continuously
cycles the digits. When you get close to the time you
wish to set, press the button intermittently to avoid going
further than the desired time.

To return to normal mode press the 'Clock' button
once, if no buttons are pressed for a period of
approximately 60 seconds the controller will return to
normal mode.

The time is always displayed regardless

NOTE

of whether the water controller is
turned ON or OFF.

The clock may need resetting if power
to the water heater unit is disrupted due
to a power failure or if the power is
switched off over a prolonged period.

ADJUSTING TEMPERATURE

Simply press the 'Temperature' or buttons until the required
temperature is displayed on the digital monitor.

To operate the water heater, open any hot water tap. This will
automatically light the burner, providing hot water. The ‘In Use’
indicator will illuminate on all water controllers.

Once the hot water is running, if the set temperature is either too hot
or cold press the 'Temperature' or buttons until the desired
temperature is reached.

Whilst hot water outlets are open the set temperature may be lowered. However
it cannot then be raised above 43°C. In addition, transfer of 'priority' between

NOTE

controllers is not possible. These are safety features.

CHECK WATER TEMPERATURE BEFORE USE.
A parent or carer should always check the temperature before a child is placed

CAUTION

Rinnai Australia 11 Operation Manual

in contact with hot water, see page 5.

DELUXE BATHROOM WATER CONTROLLERS

OPERATING THE SHOWER SAVER / BATH FILL FUNCTION

The 'Shower Saver / Bath Fill' function allows a preset
water volume and temperature to be selected and run
automatically.

No voice prompts will be available if the

NOTE

Initial Settings

When a deluxe bathroom controller is first turned on, the
default shower / bath fill temperature is set to 40°C and
the shower / bath volume is set to 100 litres. The shower
/ bath volume can be lowered to a minimum of 30 litres
or raised to a maximum of 400 litres and the
temperature adjusted as desired.

Setting Shower / Bath Temperature and Volume

With the system on, select a Deluxe Bathroom water
controller and ensure that it currently has priority. If it
does not have priority press the ‘Transfer’ button
once and the ‘Transfer’ button will illuminate.

‘Voice OFF’ or ‘Sound OFF’ options are
selected. With ‘Sound OFF’ there will
also be no audible tones.

Press 'Shower Saver / Bath Fill' button once. The
'Shower Saver / Bath Fill' button will illuminate and a
voice prompt and tone will sound.

To select the desired delivery temperature use the
'Temperature' or buttons.

The selected temperature will be displayed on the digital monitor and will remain as the default
'Shower Saver / Bath Fill' temperature until it is changed or if the mains power is turned off for an
extended period.

To select the volume of water to be used in the shower / bath use the 'Water Volume' or
buttons. The selected volume is displayed in large digits to the right and will remain as the default
'Water Volume' until it is changed or if the mains power is turned off for an extended period.

The selected volume is also repeated in the form of a remaining volume counter below the
temperature and replaces the clock during 'Shower Saver / Bath Fill' operations.

When filling a bath for the first time, it is recommended that a low bath fill volume such as 60 litres or
lower be used. During any subsequent bath fills the volume can then be adjusted to suit your known
bath volume and or desired fill level.

Be careful not to overfill the bath, an average bath volume is 160 litres. It is
recommended that when filling a bath for the first time you should:

NOTE

• Remain by the bath during the filling process.

• Use a low bath fill volume such as 60 litres or less.

When Smartstart® (page 16) is in operation, the Shower Saver / Bath Fill function
is unavailable while the water heater ‘In Use’ indicator is illuminated. Do not
press the Preheat button whilst Shower Saver / Bath Fill is in operation as the
programmed bath fill volume will not be met.

Using Shower Saver / Bath Fill

Press 'Shower Saver / Bath Fill' button once. The 'Shower Saver / Bath Fill' button will illuminate
and a voice prompt and tone will sound. During 'Shower Saver / Bath Fill' operations the 'Bath'
indicator will also be displayed in the Deluxe Kitchen water controller digital monitor (when fitted).

Rinnai Australia 12 Operation Manual

DELUXE BATHROOM WATER CONTROLLERS

HOTHOT

COLDCOLD

ON!ON!

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 on all Deluxe
water controllers and the shower will run or the bath will
start to fill.

To Stop Shower Saver / Bath Fill Operation

If you wish to stop the water flow whilst the Shower
Saver / Bath Fill function is in operation, simply press
the 'Shower Saver / Bath Fill' button.

The 'Shower Saver / 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 Shower Saver / Bath Fill Operations Finishes

Once the Shower Saver / Bath Fill operation finishes the
following events will occur:

1. The flow from the shower / bath hot water tap ceases.

OFF!OFF!

COLDCOLD

2. The 'Shower Saver / Bath Fill' button will flash.

3. The Deluxe Kitchen water controller 'Bath' indicator
will flash.

HOTHOT

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
Fill button."

Follow the voice prompts instructions. Note that the water heater will not allow hot water to flow from
any fixture until the 'Shower Saver / Bath Fill' button has been pressed.

6. The 'Shower Saver / Bath Fill' button light on the Deluxe Bathroom water controller and the 'Bath'
indicator on the Deluxe Kitchen water controller monitor (when fitted) will go out.

CHECK WATER TEMPERATURE BEFORE USE.
A parent or carer should always check the temperature before a child is placed

CAUTION

in contact with hot water, see page 5.

NEVER LEAVE YOUNG CHILDREN UNATTENDED IN THE BATH.
When using the 'Shower saver / Bath fill' function, ALWAYS close the hot water
tap for the bath or shower after the flow has stopped.

Whilst hot water outlets are open the set temperature may be lowered. However
it cannot then be raised above 43°C. In addition transfer of 'priority' between

NOTE

controllers is not possible. These are safety features.

USING MULTIPLE WATER CONTROLLERS

The water heater can be turned on and off at any water controller. If more than one water controller is
fitted press the ‘Transfer’ button to transfer priority to the desired controller.

COMBINING UNIVERSAL AND DELUXE WATER CONTROLLERS

Universal and Deluxe water controllers can be combined and will function as described in other
sections of the Water Heater Operation / Installation Manual. Refer to page 7 to confirm the maximum
number and combination of controllers that can be fitted to your water heater model.

Rinnai Australia 13 Operation Manual

DELUXE KITCHEN WATER CONTROLLERS

ABOUT THE DELUXE KITCHEN WATER CONTROLLER (MC-100V)

WATER TEMPER ATURE

INDICATOR

Indicates the selected hot water

temperature.

WATER HEATER

'In Use' INDICATOR

Indicates that the water heater is in
operation and delivering hot water.

CLOCK

12 Hour AM / PM clock display.

In the event of a fault, codes for

error messages will flash here.

SPEAKER

PREHEAT BUTTON

Used to start and stop the
Smartstart® preheater unit (when
fitted), See Smartstart® Operation
on page 16.

This button is illuminated when the
Smartstart® preheater (when fitted)
is activated.

SHOWER SAVER /

BATH FILL INDICATOR

Indicates that the Shower Saver /

Bath fill function is operating.

ON/OFF BUT TON

Used toswitch the water heater on and
off. This button is illuminated when the
hot water heating system is on.

DIGITAL

MONITOR

UP AND DOWN BUTTONS

When in Normal mode these
buttons are used to select the
water temperature

In 'Setup' mode these buttons are
used to adjust the voice prompt
volume and to set the clock.

MODE BUTTON

Used to switch the controller
between Normal, Voice or Clock
modes.

TRANSFER BUTTON

Used to transfer control priority
between the water controllers.
The controller with priority has
command of the hot water
delivery temperature. This button
is illuminated with this controller
has priority.

Only one MC-100V may be fitted to your water heater. Refer to page 7 to confirm

NOTE

the maximum number and combination of controllers that can be fitted to your
Water Heater model.

The MC-100V controller is not water resistant, avoid direct exposure to water or
steam as these conditions may cause a malfunction.

TURNING ON THE CONTROLLER

If the controller is switched off (No digits other than the clock digits
displayed in the digital monitor) press the On/Off button once.

The On/Off and Transfer buttons illuminate to indicate that the hot
water unit will be ready to supply hot water once a hot water tap is
opened.

If more than one controller is fitted press the ‘Transfer’ button to
transfer priority to the desired controller.

SETTING THE SOUND OPTIONS

To set the sound options press the 'Mode' button once to place the controller into ‘Voice’ mode.

Use the or buttons to select the desired audible setting as follows:

Voice High, Med, Low or Off, sets the voice prompt volume but does not affect the audible tones.
Sound Off, mutes all voice prompts and audible tones.

To return to normal mode press the 'Mode' button once, if no buttons are pressed for a period of
approximately 10 seconds the controller will return to normal mode.

Voice prompts only available when Deluxe Bathroom water controller(s) are
installed.

NOTE

Rinnai Australia 14 Operation Manual

DELUXE KITCHEN WATER CONTROLLERS

HOTHOT

COLDCOLD

ON!ON!

SETTING THE CLOCK

The clock is a 12 hour AM/PM style display. To set the time press the 'Mode' button twice. This
places the controller into clock setting mode and in the digital monitor the word ‘Clock’ will be
displayed and the clock digits will flash. If this is the first time the clock has been set the starting time
will be AM 12:00.

Use the or buttons to select the desired time. Holding these buttons down continuously cycles
the digits. When you get close to the time you wish to set, press the button intermittently to avoid going
further than the desired time.

To return to normal mode press the 'Mode' button once. If no buttons are pressed for a period of
approximately 10 seconds the controller will return to normal mode.

The time is always displayed regardless of whether the water controller is turned
ON or OFF.

NOTE

The clock may need resetting if power to the water heater unit is disrupted due
to a power failure or if the power is switched off over a prolonged period.

ADJUSTING TEMPERATURE

Simply press the 'hot water temp' or buttons until the
required temperature is displayed on the digital monitor.

To operate the water heater, open any hot water tap. This will
automatically light the burner, providing hot water. The ‘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 or buttons until the desired temperature is
reached.

Whilst hot water outlets are open the set temperature may be lowered. However
it cannot then be raised above 43°C. In addition transfer of 'priority' between

NOTE

controllers is not possible. These are safety features.

CHECK WATER TEMPERATURE BEFORE USE.
A parent or carer should always check the temperature before a child is placed

CAUTION

Rinnai Australia 15 Operation Manual

in contact with hot water, see page 5.

SMARTSTART® PRE-HEAT OPERATION

3

ABOUT THE SMARTSTART® PREHEAT SYSTEM

3 3 47 75 3 7

8

6

2

2

1

5

1

8

4

1

2

8

6

4

6

5

1

PREHE AT BUTTON

Used to startand stop 'Smartstart ®'
preheate r.

2 3

PREHE AT INDICATOR

Indicatesthat'Smartstart®'
preheater is activated*

DIGITAL

MONITOR

4

ON/OFF

BUTTON

5

CONTROLLER ON

INDICATOR

6

TEMPER ATURE

BUTTONS

7

WATER HEATE R

'IN USE' INDIC ATOR

8

TRANSFER

BUTTON

Preheat Function

The “Preheat” function works in conjunction with various Rinnai water heater models and the
separately installed and optional Rinnai “Smartstart®” module.

When the “Preheat” function is activated and used in accordance with these instructions, water in the
pipework connected between the water heater and the hot water outlets in your house is warmed
before any outlets are opened. This results in water savings and added convenience.

The “Preheat” function is activated as follows:

1. Ensure that the hot water unit is on (temperature digits are displayed in the digital monitor ).

If more than one controller is fitted press the ‘Transfer’ button to pass on priority to your
desired controller, the ‘Controller On’ indicator will illuminate to confirm that priority has been

5

8

assigned to this controller and that the hot water unit is ready to deliver hot water.

2. Select the desired temperature using the 'Temperature' buttons until the required

6

temperature is displayed in the digital monitor .

3. Press the ‘Preheat’ button once. The ‘Preheat’ indicator and the ‘In Use’ indicators

1 2 7

will illuminate, signifying that the preheat system has been activated.

4. Wait approximately two minutes before opening an outlet. This will allow the water in the

pipework to be warmed.

3

The waiting time may be longer or shorter than two minutes depending on your
particular installation configuration.

NOTE

The “Preheat” function is cancelled 5 minutes after activation and the ‘Preheat’
indicator will go out. This is to conserve energy. To reactivate, simply repeat
steps 2-4 above.

* If the ‘Preheat’ button is pressed and the ‘Smartstart®’ preheat unit is not
installed, the ‘Preheat’ indicator will still light but there will be no “Preheat”
function. The ‘Preheat’ indicator will go out after a short time and will not affect the
other functions of the water controller or water heater.

After using the Shower Saver / Bath Fill function wait 30 seconds before
activating the “Preheat” function. Attempting to use the “Preheat” function
earlier will result in voice prompts being repeated until the system is reset. The
system can be reset by pressing the ‘On /Off' button twice.

Other Controller Functions

Controller functions such as temperature control and transfer of priority between multiple controllers
is not affected by the operation of the preheat. Such functions are described in the applicable sections
of this manual.

Rinnai Australia 16 Operation Manual

TROUBLESHOOTING

Your Rinnai Continuous Flow water heaters has a self diagnostic capability. If a fault occurs, an Error
Code will flash on the digital monitor or status monitor* if you have water controllers. This assists with
diagnosing the fault, and may enable you to overcome a problem without a service call. Please quote
the code displayed when enquiring about service. *Status Monitor available REU-VRM2630WD,
HD250e and HD200e and HD200i models only.

ERROR FAULT REMEDY

-

03

10 Air intake or flue blocked. Service Call.

11 No ignition / No gas supply.

12 Flame Failure / Low gas flow.

14 Remaining Flame Safety Device. Service Call.

16 Over Temperature Warning. Service Call.

25 Condensate Pipe Blockage Check for blockage on condensate drain path.

32 Outgoing Water Temperature Sensor Faulty. Service Call.

33 Heat Exchanger Outlet Sensor Faulty. Service Call.

34 Combustion Air Temperature Sensor Faulty. Service Call.

52 Gas Modulating Valve Faulty. Service Call.

61 Combustion Fan Failure. Service Call.

65

Noticeable reduction in water flow. Inlet water filter needs to be cleaned. Service call.

Power interruption during Bath fill

(Water will not flow on power reinstatement).

Water Flow Control Faulty

(Does not stop flow properly).

Turn off all hot water taps. Press On/Off twice.

Check gas is turned on at water heater and gas meter

or cylinder.

Check gas is turned on at water heater

and gas meter or cylinder.

Check there are no obstructions to the flue outlet.

Service Call.

71 Micro-processor Failure. Service Call.

72 Micro-processor Failure. Service Call.

LC Scale build-up inside the heat exchanger. Service Call.

In all cases, you may be able to clear the Error Code simply by turning the hot water tap OFF, then ON again. If this does not clear the Error Code,
try pushing the On/Off button OFF, then ON again. If the Error Code still remains, contact Rinnai for advice.

Troubleshooting Without Controllers

If you have no water controllers and experience the following symptoms, carry out these suggestions.
If the symptom continues, contact Rinnai for advice.

FAULT REMEDY

The unit does not attempt to start at all.

The unit starts then shuts down immediately.

The unit starts then the water goes cold.

Check the power is on at the unit.

Check the isolation valves at the unit are open.

Check the power is still on.

Check the gas isolation valves at the

unit and the gas meter are fully open.

Open your hot water tap fully.

Check the power is still on.

Open your hot water tap further.

Faults caused by insufficient gas supply, insufficient water supply, gas quality,
water quality, installation errors or operation errors are not covered by the Rinnai

NOTE

warranty. Refer to separate warranty booklet for details.

Rinnai Australia 17 Operation Manual

INTENTIONALLY BLANK PAGE

Rinnai Australia 18 Operation Manual

INTENTIONALLY BLANK PAGE

Rinnai Australia 19 Operation Manual

INSTALLATION MANUAL

GENERAL INSTALLATION INSTRUCTIONS ..........................................................21

REGULATIONS ......................................................................................................................................... 21

APPLICABLE MODELS ............................................................................................................................ 21

APPLIANCE LOCATION ........................................................................................................................... 21

PIPE SIZING ............................................................................................................................................. 22

WATER SUPPLY ...................................................................................................................................... 22

HOT WATER DELIVERY TEMPERATURE .............................................................................................. 22

WATER HEATER AND CONTROLLER INSTALLATION CONFIGURATIONS ........................................ 22

MOUNTING THE APPLIANCE ................................................................................................................. 22

SERVICE CONNECTION POINTS ........................................................................................................... 23

HORIZONTAL FLUE TERMINAL CLEARANCES .................................................................................... 24

HORIZONTAL OBSTRUCTIONS .............................................................................................................. 25

MULTIPLE INSTALLATIONS OF EXTERNAL MODELS .......................................................................... 25

APPLIANCE AND WATER CONTROLLER DIMENSIONS ...................................................................... 26

CO-AXIAL FLUEING FOR INTERNAL MODELS ..................................................................................... 27

CONDENSATE DRAIN (REU-KM’ MODELS ONLY)................................................28

IMPORTANT CONSIDERATIONS FOR THE CONDENSATE DRAIN PIPE ............................................ 28

LENGTH AND CHANGES OF DIRECTION .............................................................................................. 28

INSTALLATION ......................................................................................................................................... 28

INTERCONNECTION OF CONDENSATE DRAIN LINES ........................................................................ 29

COMMON STACK DISCHARGE .............................................................................................................. 29

TUNDISH DRAIN LINES ........................................................................................................................... 29

AREAS SUBJECT TO FREEZING ............................................................................................................ 29

WATER CONTROLLER INSTALLATION.................................................................30

RINNAI WATER CONTROLLERS ............................................................................................................ 30

POSITIONING OF WATER CONTROLLERS ........................................................................................... 30

WATER CONTROLLER CABLES ............................................................................................................. 30

FITTING THE ‘UNIVERSAL’ WATER CONTROL (MC-91Q) .................................................................... 30

OPTIONAL PROGRAMMING FOR THE ‘UNIVERSAL’ WATER CONTROLLER (MC-91Q) ................... 31

FITTING THE ‘DELUXE KITCHEN’ WATER CONTROLLER (MC-100V) ................................................ 32

FITTING THE ‘DELUXE BATHROOM’ WATER CONTROLLER (BC-100V) ............................................ 32

CONNECTING COMMUNICATION CABLES TO THE WATER HEATER ............................................... 33

COMMISSIONING .....................................................................................................34

TESTING ................................................................................................................................................... 34

DELIVERY TEMPERATURE .................................................................................................................... 34

GAS PRESSURE SETTING ..................................................................................................................... 35

COMMISSIONING CHECK LIST .............................................................................................................. 35

ACCESSORIES ........................................................................................................36

PRODUCT RECORDS .............................................................................................36

CONTACT INFORMATION ......................................................................................37

Rinnai Australia 20 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

REGULATIONS

This appliance must be installed in accordance with:

• Current AS/NZS 3000, AS/NZS 3500 and AS/NZS 5601

• Rinnai Installation Instructions

• Local regulations and municipal building codes including local OH&S requirements

Installation, Service and Removal MUST BE by an Authorised Person only.

APPLICABLE MODELS

These Installation Instructions apply only to the following Rinnai Continuous Flow Water heater
models are listed on the cover page of this manual.

APPLIANCE LOCATION

(External Models)

This appliance is designed for ‘Outdoor’ Installation only. As such, it must be located in an above
ground open air situation with natural ventilation, without stagnant areas, where gas leakage and
products of combustion are rapidly dispersed by wind and natural convection.

This appliance must be mounted on a vertical structure with the water and gas connections on the
underside pointing downwards. For appliances installed on elevated structures or under floors specific
requirements apply. Refer to AS/NZS 5601 Section 6 for details.

This appliance must not be used as a domestic spa or swimming pool heater.

Location of the appliance flue terminal must be in accordance with Section 6 and Figure 6.2 of
AS/NZS 5601. Figure 6.2 is reproduced in the ‘Horizontal Flue Terminal Clearances’ section of these
instructions. Note that AS/NZS 5601 was current at the time of printing but may have been
superseded. It is the installers’ responsibility to ensure current requirements are met.

(Internal Models)

This appliance is designed for ‘Indoor’ installation only. It may be installed ‘Outdoors’ in an enclosure
if the requirements of AS/NZS 5601 Section 6 are satisfied. An enclosure is defined as a
compartment, enclosed area or partitioned off space primarily used for the installing of the appliance.
If installed in an enclosure, either Internally or Externally, the location should be ventilated to allow gas
to dissipate and provision must be made for the safe disposal of any leaking water to a visible location.

This appliance must be mounted on a vertical structure with the water and gas connections on the
underside pointing downwards. For appliances installed in roof spaces or elevated structures specific
requirements apply. Refer to AS/NZS 5601 Section 6 for details.

This appliance must not be used as a domestic spa or swimming pool heater.

Rinnai internal models described in this manual must use the Co-Axial Rinnai FFU flue components.
The use of non Rinnai FFU flue components may result in a dangerous situation and violates
regulations. The maximum FFU flue length is 9 metres with a maximum of three 90 degree bends.
Horizontal (wall) or vertical (roof) terminals are available. For detailed information refer to “CO-AXIAL
FLUEING FOR INTERNAL MODELS” on page 27.

This appliance must be located so that the flue terminal exits the building at a suitable point.

If a horizontal (wall) terminal FFWALLTERM is used, the location must be in accordance with Section
6 and Figure 6.2 of AS/NZS 5601. Figure 6.2 is reproduced under ‘HORIZONTAL FLUE TERMINAL
CLEARANCES’ on page 24 of this manual.

If a vertical (roof) terminal FFROOFCOWL is used, the location must be in accordance with Section
6 of AS/NZS 5601 and the “CO-AXIAL FLUEING FOR INTERNAL MODELS” on page 27.

AS/NZS 5601 was current at the time of printing but may have been superseded. It is
the installer’s responsibility to ensure current requirements are met.

NOTE

(All Models)

This appliance must be placed as close as practicable to the most frequently used hot water outlet or
outlets to minimise the delay time for hot water delivery. For installations where the distance between
the water heater and the outlets is considerable, a flow and return system or the Rinnai Smartstart®
system can be used which minimise the waiting time for hot water delivery.

Rinnai Australia 21 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

Alternatively, multiple appliances can be strategically placed to serve outlets with minimal delay time.
Contact Rinnai for further information.

An AC240V, 10 Amp, earthed power point must be provided adjacent to the appliance. For outdoor
installations this power point must be weather proof. It must be clear of the gas and water connections
to the appliance and also the flue exhaust and water pressure relief valve. The power cord of the
appliance is 1.5 Metres long.

All appliances must be installed to ensure access can be gained without hazard or undue difficulty for
inspection, repair, renewal or operational purposes. Sufficient clearances shall allow access to, and
removal of, all serviceable components. Appliances should not be mounted higher than 2.5 metres
above the ground or floor level unless the customer can arrange permanent and safe access or can
provide another means of access, for example, by means of scissor or boom lifts acceptable to local
authorities.

PIPE SIZING

See Table 1 page 23 for appliance gas consumption. If the gas pipe sizing is insufficient the customer
will not get the full performance benefit. Gas pipe sizing must consider the gas input to this appliance
as well as all the other gas appliances in the premises. The gas meter and regulator must be specified
for this gas rate. An approved sizing chart such as the one in AS/NZS 5601 should be used.

Water pipe sizing and layout should be performed in accordance with AS/NZS 3500. All hot water
pipe-work should be insulated to optimise performance and energy efficiency.

WATER SUPPLY

See Table 1, page 23 for applicable water pressures. Approved pressure limiting valves may be
required if the ‘Maximum’ rated water supply pressures in Table 1 are exceeded. To achieve the rated
flow, the ‘Minimum’ water supply pressures in Table 1 must be supplied. The water heaters will
operate at lower pressures but will not achieve the rated flow. Contact Rinnai for ‘gravity fed’ or ‘low
pressure’ installations.

Water chemistry and impurity limits are detailed under ‘Warranty Conditions’. Most metropolitan water
supplies fall within the requirements. If you are unsure about your local water quality, contact your
water authority. If sludge or foreign matter is present in the water supply, a suitable filter or strainer
should be incorporated in the water supply to the water heater.

HOT WATER DELIVERY TEMPERATURE

Local regulations and or the requirements of AS/NZS 3500 must be considered regarding the
temperature limitations of hot water supplied to areas used primarily for personal hygiene. The
temperature of water to these areas may be limited to 50º C or less. To ensure these regulations and
or requirements are met the system MUST be installed in accordance with the 'Water Heater and
Controller Installation Configurations' Section of these instructions.

WATER HEATER AND CONTROLLER INSTALLATION CONFIGURATIONS

If the appliance is marked to state that it delivers water not exceeding 50°C, local regulations may
permit it's installation without a Temperature Limiting Device. Installations without a Temperature
Limiting Device are shown in Diagram 1 (page 23). If you are unsure about your local regulations
contact your regulating authority or Rinnai.

If the appliance is NOT marked to state that it delivers water not exceeding 50°C, or your local
regulations require installation with a Temperature Limiting Device then install the appliance in
accordance with Diagram 2 (page 23).

MOUNTING THE APPLIANCE

See Table 1, page 23 for individual appliance weights. The wall or structure on which the units are
to be mounted must be capable of supporting these weights and the associated pipe-work.

The top bracket has a keyhole slot so that the appliance can be positioned by hanging it on one
screw, then the other screws can be secured.

The appliance can be mounted directly against the wall or structure. There is no need to use, non
combustible sheeting or leave an air gap between the appliance back panel and the wall or structure
for the purposes of meeting the temperature hazard requirements of AS/NZS 5601.

Rinnai Australia 22 Installation Manual

IMPORTANT

GENERAL INSTALLATION INSTRUCTIONS

If the appliance is to deliver water primarily for the purposes of personal hygiene in an
early childhood centre, primary or secondary school, nursing home or a similar facility
for the care of young, aged, sick or disabled persons as defined in AS/NZ 3500 a
Temperature Limiting Device (TLD), such as a Tempering Valve may be required even
if the appliance is set to 50º C or less.

For these types of applications contact Rinnai.

ENSUITE

Water controller

(optional)

Water controller

(optional)

Water controller

(optional)

Water controller

(optional)

Water controller

(optional)

LAUNDRY

BATHROOM

KITCHEN

H
O
T

50º C

C
O
L
D

G

A
S

Diagram 1 - 50°C Appliance

Minimum length of pipe from hot outlet

Water controller

(optional)

Water controller

(optional)

Water controller

(optional)

KITCHEN

C

G

H

O

A

O

L

S

T

D

LAUNDRY BATHROOM

ENSUITE

TLD

Diagram 2 - Not a 50°C Appliance

Note: TLD = Temperature Limiting Device

to nearest hot water tap 2 metres.

Ensure that suitable fixing screws or bolts are used to secure the units to the wall, in accordance with
AS/NZS 5601 section 6. Wooden plugs shall not be used.

The top bracket has a keyhole slot so that the appliance can be positioned by hanging it on one screw,
then the other screws can be secured.

SERVICE CONNECTION POINTS

See Table 1 for individual appliance connection / fitting dimensions. Note that these dimensions are
NOT an indication of the pipe sizes required.

An Approved full flow isolation valve and disconnection union MUST be fitted to the cold water inlet.
A non return valve is not required unless required by local regulations.

Isolation Valves must not be fitted directly to the appliance.

If may be necessary to fit a temperature limiting device for delivery to areas used primarily for the
purposes of personal hygiene. Refer to the ‘Water Heater and Controllers Installation Configurations’
Section of this document.

Purge gas and cold water supply lines to remove air and swarf before final connection of the
appliance. Swarf in either the gas or water supplies may cause damage.

Model:

Gas

Consumption

MJ/h

Water Supply kPa

Min. Max. Hot Cold Gas Condensate

Weight

kg

Fittings

REU-VRM3237WC 250 180 1000 29 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR3237WG 250 180 1000 29 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR2626WG 199 200 1000 16 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VRM2630WD 199 190 1000 17 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VRM2632WC 199 140 1000 21 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR2632FFUG 195 140 1000 21 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VRM2632FFUC 195 140 1000 21 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-KM3237WD 211 250 1000 32 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) R ½ (15mm)

REU-KM2635WD 172 250 1000 29 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) R ½ (15mm)

REU-VR2426WB 188 200 1000 15 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR2024WG 160 160 1000 15 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR2024WB 160 160 1000 15 R ¾ (20mm) R ¾ (20mm) R ¾ (20mm) -

REU-VR1620WG 125 120 1000 15 R ½ (15mm) R ½ (15mm) R ¾ (20mm) -

REU-VR1620WB 125 120 1000 15 R ½ (15mm) R ½ (15mm) R ¾ (20mm) -

Table 1.

Rinnai Australia 23 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

HORIZONTAL FLUE TERMINAL CLEARANCES

Flue terminal Fan assisted flue appliance only Gas meter Electricity meter or fuse box Mechanical air inlet

Ref. Item

Below eaves, balconies and other projections:

a

• Appliances up to 50 MJ/h input 300 200

• Appliances over 50 MJ/h input 500 300

b From the ground, above a balcony or other surface * 300 300

c Front a return wall or external corner * 500 300

From a gas meter (M) (see 5.11.5.9 for vent terminal location of regulator )

d

(see Table 6.6 for New Zealand requirements) 1000 1000

e From an electricity meter or fuse box (P) † 500 500

f From a drain pipe or soil pipe 150 75

g Horizontally from any building structure* = or obstruction facing a terminal 500 500

h From any other flue terminal , cowl, or combustion air intake † 500 300

Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into a building
with the exception of sub-floor ventilation:

• Appliances up to 150 MJ/h input * 500 300

• Appliances over 150 MJ/h input up to 200 MJ/h input * 1500 300

j

• Appliances over 200 MJ/h input up to 250 MJ/h input * 1500 500

• Appliances over 250 MJ/h input * 1500 1500

• All fan-assisted flue appliances , in the direction of discharge - 1500

k From a mechanical air inlet, including a spa blower 1500 1000

Vertically below an openable window, non-mechanical air inlet, or any other opening into a building with the
exception of sub-floor ventilation:

• Space heaters up to 50 MJ/hr input 150 150

n

• Other appliances up to 50 MJ/hr input 500 500

• Appliances over 50 MJ/h input and up to 150 MJ/h input 1000 1000

• Appliances over 150 MJ/h input 1500 1500

* - unless appliance is certified for closer installation

† - Prohibited area below electricity meter or fuse box extends to ground level.

NOTES:

1

Where dimensions c, j or k cannot be achieved an equivalent horizontal distance
measured diagonally from the nearest discharge point of the terminal to the opening
may be deemed by the Technical Regulator to comply.

2

See Clause 6.9.4 for restrictions on a flue terminal under a covered area.

3

See Figure J3 for clearances required from a flue terminal to an LP Gas cylinder.
A flue terminal is considered to be a source of ignition.

4

For appliance s not addressed above acceptance should be obtained from the Technical Regulator.

FIGURE 6.2 (in-part) MINIMUM CLEARANCES REQUIRED FOR BALANCED FLUE TERMINALS, FAN-ASSISTED FLUE
TERMINALS, ROOM-SEALED APPLIANCE TERMINALS AND OPENINGS OF OUTDOOR APPLIANCES

Min. clearances (mm)

Natural draft Fan assisted

Extract from AS/NZS 5601

Rinnai Australia 24 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

HORIZONTAL OBSTRUCTIONS

AS/NZS 5601 ‘Gas Installations’ stipulates a minimum
horizontal clearance of 500 mm between a building
structure and obstruction facing the terminal. For Rinnai
external continuous flow water heaters such a building
structure must ‘obstruct’ the full front cover height of the
appliance, or extend vertically above and below the front
cover. There must be no partial obstructions to the front
cover of the appliance or any other parts of the appliance
casing. This will avoid the appliance failing to operate
under windy conditions.

MULTIPLE INSTALLATIONS OF EXTERNAL MODELS

Dimension ‘h’ above does not apply when multiple Rinnai
external water heaters of the same model are installed on
the same vertical face with flue terminals at the same
height. Under these conditions appliances can abut each
other as shown. The total gas consumption of all
appliances applies when determining other clearances.

500mm

Rinnai Australia 25 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

APPLIANCE AND WATER CONTROLLER DIMENSIONS

A

C

D

B

I

G

O

J

H

F

L

K

E

N

M

FITTING DIAMETER

Dim' Description

REU-VR2626WG

REU-VR3237WG

REU-VRM3237WC

A Width 470 350 350
B Depth 244 194 235~275
C Height - Unit 600 530 600
D Height - Including Brackets 644 571 641
E Hot Water outlet (from wall) 115 87 91 ~ 131

F Hot Water outlet (from centre) 61 105 110
G Cold Water inlet (from wall) 99 68 70 ~ 110
H Cold Water inlet (from centre) 52 10 27*

I

Gas Connection (from wall) 61 77 99 ~139

J Gas Connection (from centre) 110 83 89
K Condensate outlet (from wall) - - -

L Condensate outlet (from centre) - - -

Gas Connection Length (from base) 41 40 41
Cold Connection Length (from base) 51 50 51

M

Hot Connection Length (from base) 42 42 42
Condensate Connection Length (from base) - - ----­Gas: Fitting Diameter 20 20 20
Cold: Fitting Diameter 20 20 20

N

Hot: Fitting Diameter 20 20 20
Condensate: Fitting Diameter - - -

O

Flue Spigot Centreline (from wall, FFU only) - - 95 ~ 135 -------

* Please note that this measurement is to the left of the centre line.

355.6
202
503
571

87

105

68
10
77

83

-

­40
50
42

20
20
20

-

REU-VRM2630WD

REU-VR2632FFUG

REU-VRM2632FFUC

REU-KM3237WD

470
283
670
722
115
100

80
28

104
103

138
195

40
50
41
22
20
20
20
15

470
283
670
722
115
100

75
13

104
103

138
195

40
50
41
22
20
20
20
15

REU-VR2426WB

350
194
530
571

87

105

68
10
77

83

-

­40
50
42

20
20
20

-

REU-VR2024WG

350
194
530
571

87

105

68
10
77

83

-

­40
50
39

20
20
20

-

REU-KM2635WD

REU-VR1620WB

REU-VR1620WG

REU-VR2024WB

350
194
530
571

105

87

68
10
77

83

40
50
39

20
15
15

REU-VRM2632WC

350
251
600
636

96

110

75

27*

104

89

-

-

-

­41
51
42

­20
20
20

-

-

Dim' Description

QS

P

R

P Width 128
Q Height 120
R Depth 20

Distance between

S

mounting hole centres

90

120

20

83

MC-91

MC-100V

83

BC-100V

202
104

22

181

Rinnai Australia 26 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

CO-AXIAL FLUEING FOR INTERNAL MODELS

Rinnai internal models described in this manual must use the Co-Axial Rinnai FFU flue components.
The use of non Rinnai FFU flue components may result in a dangerous situation and violates
regulations.

The FFU flue system must be installed in accordance with the ‘FFU Flue Installation Manual’ which is
provided with the FFU flue terminal components FFWALLTERM or FFROOFCOWL.

Installations can consist of both
horizontal and vertical runs to a
maximum length of 9 metres and
with a maximum of three 90° bends.

If flue length exceeds 1.5m,
dipswitch 1 of SW1 is to be switched
to the 'OFF' position.

This increases the combustion
speed to overcome the additional
friction loses.

Flue Length Dip Swit ch Settings

FFU (Internal) Models Only

Short Flue: Total flue

length less than 1.5 metres

SW1

Dipswitches

SW1

OFFON

OFFON

FFU (Internal) Models Only

Extended Flue: Total flue

length 1.5 metres or greater

1 2345678

123456

SW1

OFFON

OFFON

1 2345678

123456

Basic methods of installation

There are four basic flue installation
methods available. These are:

(1.) Direct Horizontal

(2.) Extended Horizontal

(3.) Vertical

(4.) Combination Vertical /

Horizontal

Multiple Terminal Installations

The terminal clearances stated in
AS/NZS 5601 do not apply to the
Rinnai internal continuous flow
water heaters when they are
installed side by side.

AGA certification allows for a
horizontal separation of 160 mm for
roof terminals and 270 mm for wall
terminals.

SW2

Dipswitches

1

2

SW2

3

SW2

4

Rinnai Australia 27 Installation Manual

CONDENSATE DRAIN (REU-KM’ MODELS ONLY)

The INFINITY ENVIRO range water heaters generate condensate continuously at a rate of up to 5
litres per hour as a by-product of highly efficient gas burner system. This condensate must be drained
via a pipe to a suitable point of discharge. Because the condensate is a by-product of gas combustion
it is mildly acidic. For this reason copper tube and fittings MUST NOT be used as it will corrode.
Instead, Rinnai recommend plastic pipes and fittings such as Unplasticised Polyvinyl Chloride (UPVC)
or Polyethylene (PE) which is commonly used for irrigation piping.

IMPORTANT CONSIDERATIONS FOR THE CONDENSATE DRAIN PIPE

The content of AS/NZS 3500 ‘Temperature / Pressure Relief and Expansion Control
Valve Drain Lines’ has been used as a guide in preparing these considerations.

NOTE

A

B

E

C

D

2°

Remove cap from condensate drain outlet

Water heater drain outlet connection, R½” (15 mm) BSP male. Condensate drain outlet

A

connection, 1/2” (15mm) BSP male nylon (Note: the black plastic shipping cap MUST BE
removed from the condensate drain outlet prior to water heater operation).

PE R½” BSP (15 mm) female to barbed irrigation system connector (13 – 19mm) or equivalent

B

plastic fitting. Drain pipe and fittings to match item .

Continuous fall (of at least 2°) from water heater to discharge point. Lengths and bends in

D

C B

accordance with ‘LENGTH AND CHANGES OF DIRECTION’ below.

Suitable points of discharge are deemed to be drains, sewers or pits. DO NOT discharge onto

E

electrical connections, earth stakes, copper pipes, concrete paths or into a pond.

LENGTH AND CHANGES OF DIRECTION

Maximum length and changes of direction
greater than 45° should be as follows:

INSTALLATION

(a) The drain line MUST NOT discharge onto electrical connections, earth stakes, copper pipes,

concrete paths or into a pond.

(b) The point of discharge from each drain line shall be located so that the release of condensate

does not cause a nuisance, is readily discernible and incurs no risk of damage to the building.

In view of (a) and (b), suitable points of discharge are deemed to be drains, sewers or pits.

(c) There shall be no tap, valve or other restrictions in any line.

(d) Each line shall fall continuously from the valve to the approved point of discharge.

(e) Drain lines shall not discharge into a storage water heater safe tray.

(f) The end of the condensate drain line shall be:

(i) not lower than 200 mm or higher than 300 mm above an unpaved surface; or

(ii) not lower than 75 mm or higher than 300 mm above a gravel pit not less than 100 mm in
diameter in a paved surface.

(g) Where discharging over a tundish or gully trap, drain lines shall have an air gap of a size at least

twice the diameter of the drain line.

A

Lengths and changes of direction

Max length (Metres) 9 8 7 6

Max changes of direction >45° 3 4 5 6

Rinnai Australia 28 Installation Manual

CONDENSATE DRAIN (REU-KM’ MODELS ONLY)

INTERCONNECTION OF CONDENSATE DRAIN LINES

Condensate drain lines from multiple water heaters may be joined together provided they conform
with the ‘INSTALLATION’ requirements on page 28.

COMMON STACK DISCHARGE

Where individual water heaters are installed in a multistorey building, the condensate drain lines may
discharge into a common stack, subject to the following:

(a) The discharge from the common stack is to a tundish, having a discharge line, that is not less

than the size of the common stack, directly connected to a fixture trap, and installed in connection
with any adjacent soil or waste stack.

(b) The discharge point of the common stack is such that any discharge is readily visible and not

cause any nuisance.

(c) The common stack is vented by extending the pipe upwards, above the roof level.

TUNDISH DRAIN LINES

The drain line from any tundish shall be not less than DN 20 or less than one size larger than that of
the largest drain line discharging into the tundish. Tundish drain lines shall comply with the

‘INSTALLATION’ requirements on page 28.

AREAS SUBJECT TO FREEZING

In areas where water pipes are prone to freezing, the drain pipe from any valve shall be insulated and
not exceed 300 mm in length. It shall discharge into a tundish through an air gap of not less than 75
mm and not more than 150 mm measured from the outlet of the drain pipe to the rim of the tundish.

Rinnai Australia 29 Installation Manual

WATER CONTROLLER INSTALLATION

RINNAI WATER CONTROLLERS

Water controllers are available as an optional extra. Universal and Deluxe water controllers can be
used together and will function as described in the Operation Section of this manual. Please refer to
page 7 to confirm the maximum number and combination of water controllers that can be fitted.

Other manufacturers water controllers are NOT compatible with Rinnai water

NOTE

POSITIONING OF WATER CONTROLLERS

Water controllers must be installed in shaded and clean locations. They should be fitted out of reach
of children (suggested height from floor to be at least 1500 mm). BC-100V remote controllers are
water resistant, however, durability is improved when positioned outside the shower recess. All deluxe
remote controllers must be installed at least 400 mm above the highest part of a sink, basin or bath.

NOTE

heaters. Water controllers MUST NOT be used with any Solar Boost water heater.
Rinnai water controllers brought in from other countries are not compatible with
Rinnai appliances sold in Australia.

• Do not install remote controllers near a heat source, such as a cook top, stove
or oven. Heat, steam, smoke and hot oil may cause damage.

• Do not install remote controllers in direct sunlight.

• The MC-100V remote controller MUST NOT be installed in a bathroom.

• Do not install remote controllers outdoors unless protection from dust
ingress and sunlight are provided.

• Do not install remote controllers against a metal wall unless the wall is
earthed in accordance with AS/NZS3000.

• Water controllers MUST NOT be installed where chemicals such as benzine,
alcohol, turpentine or other similar chemicals are in use.

POSITIONING CONSIDERATIONS FOR THE MC-100V WATER CONTROLLER.

The MC-100V uses a Liquid Crystal Display (LCD) for the digital
monitor. Light reflections can make the LCD difficult to see at
direct eye level.

For best results when Installing the MC-100V mount the remote
controller lower than your eye-level to avoid these light
reflections.

WATER CONTROLLER CABLES

Water controllers operate at extra low voltage (12 Volts DC) which is supplied from the water heater.
Each Water controller comes supplied with 15 m of electrical cable. The appliance end of the cables
are fitted with spade terminals. Extension cabling is available from Rinnai.

Alternatively two core sheathed (double insulated) flex with minimum cross­sectional area of 0.5 mm² may be used. Maximum individual cable runs should

NOTE

not exceed 50 m.

FITTING THE ‘UNIVERSAL’ WATER CONTROL (MC-91Q)

1. Determine the most suitable position for the water controller.

2. Mark and drill 3 holes, locating the cable access as shown in Fig. 1.

3. When running cable through the access hole ensure the connector end of the cable is located
nearest to the controller (Fig.2).

4. Carefully remove face plate from the water controller, using a screw driver (Fig. 3).

5. Connect the cable to the water controller. Feed any excess cable lengths into the wall cavity to
avoid the pinching of cables between the wall and the controller.

6. Fix the water controller to the wall using the appropriate fixings as shown in (Fig. 4).

Rinnai Australia 30 Installation Manual

WATER CONTROLLER INSTALLATION

r

7. Remove protective film from the water controller face as shown in Fig. 4 and replace face plate.

Film

Face Plate

Face Plate

120

Controller Cable

41.5

83

Securing

Screw

Connecto

Outline of Water Control

90

Fig. 1

Ø20 Cable Access

Fig. 2 Fig. 3 Fig. 4

OPTIONAL PROGRAMMING FOR THE ‘UNIVERSAL’ WATER CONTROLLER (MC-91Q)

QUESTION

Are there four water controllers connected?

IF NO: (You have three water controllers or fewer), go to Question 2.

IF YES: You will need to activate the fourth water controller as follows:

STEP 1: For the water controller in the KITCHEN ONLY, press and hold

the ‘Transfer’ and ‘On/Off’ buttons simultaneously (see Fig. 5)
until a ‘beep’ is heard (approximately 5 seconds).

STEP 2: Check that the display on ALL FOUR water controllers is lit and

Fig. 5

displaying a temperature when ‘switched on’. If any ONE of the
controller displays two dashes (see Fig. 6) repeat STEP 1.

This completes the activation procedure for the fourth controller,
you may ignore Question 2.

Fig. 6

Screw

Is the water heater marked to state it delivers water

QUESTION

IF YES: No further action required.

IF NO: You will need to program the kitchen controller to enable

selection of temperatures higher than 50°C.

STEP 1: For the controller in the KITCHEN ONLY, press and hold the

‘Transfer’ and ‘On/Off’ buttons simultaneously (Fig. 7) until a
‘beep’ is heard (approximately 5 seconds).

STEP 2: When the controller fitted in the KITCHEN is switched On, it

should be possible to select temperatures higher than 50°C. If
not, repeat STEP 1.

NOTE

not exceeding 50°C?

If the water controller in the kitchen is replaced, repeat STEP 1 above for the
replacement controller.

If the water controller in the kitchen is swapped with another controller (for
example, the controller fitted in a bathroom), repeat STEP 1 for the controller
moved from the kitchen to the bathroom. Then perform STEP 1 for the controller
moved from bathroom to the kitchen.

Fig. 7

Rinnai Australia 31 Installation Manual

WATER CONTROLLER INSTALLATION

r

e

FITTING THE ‘DELUXE KITCHEN’ WATER CONTROLLER (MC-100V)

1. Determine the most suitable position for the water controller (see notes page 30).

2. Use the wall mounting bracket as a template to mark and drill 3
holes, locating the cable access as shown in Fig. 1.

3. Fix the mounting bracket to the wall using the appropriate fixings.

4. Run the cable through the hole in the wall.

128

5. Carefully remove face plate from the water controller, using a screw
driver (Fig. 2).

Screw Securing Points

Outline of Water Controller

Fig.1

6. Connect the cable to the water controller as shown in Fig 3. At this point cables from other
controllers (if fitted) may also be connected to the screw terminals of the Kitchen water controller
(Fig. 4) eliminating the need for multiple cable runs directly to the water heater. Water controllers
are not polarity sensitive. Feed any excess cable lengths into the wall cavity to avoid the pinching
of cables between the wall and the controller.

7. Fasten the controller to the wall mounting bracket as shown in Fig. 5. Avoid the over-tightening
of fixings as this may cause damage. Once secured replace the face plate.

Fig. 2 Fig. 3

Fig. 4 Fig. 5

FITTING THE ‘DELUXE BATHROOM’ WATER CONTROLLER (BC-100V)

1. Determine the most suitable position for the water controller (see notes page 30).

120

Ø20 Cable Access

2. Mark and drill 3 holes, locating the cable access as shown in Fig. 1.

3. When running a cable through the access hole ensure the connector
end of the cable is located nearest to the controller (Fig. 2).

4. Affix the double sided self-adhesive seal to the back of the water
controller (Fig. 3).

5. Carefully remove the face plate from the water controller, do this by
placing your thumbs on the front of the digital display and while

Outline of Water Controller

181

Securing

Ø20 Cable Access

Screw

202

Fig. 1

Controller Cable

hooking your fingers behind top of plate and gently push as shown in
Fig. 4, DO NOT use a screwdriver as this may damage the controller.

6. Connect the cable to the water controller. Feed any excess cable
lengths into the wall cavity to avoid the pinching of cables between
the wall and the controller.

Connecto

Fig. 2

7. Fix the controller to the wall using the appropriate fixings as shown in Fig. 5, avoid over­tightening of fixings as this may cause damage. Once secured replace the face plate.

Backing Seal

Remove film

to expose

self-adhesiv

104

Fig. 3 Fig. 4 Fig. 5

Rinnai Australia 32 Installation Manual

WATER CONTROLLER INSTALLATION

CONNECTING COMMUNICATION CABLES TO THE WATER HEATER

Communication cables connect the water heater to water controllers and operate at an extra low
voltage (12 Volts DC) which is supplied from the water heater. Communication cables are supplied
with the water controllers (15m) and are fitted with spade terminals for connection to water heater. Up
to two cables can be connected directly to the ‘Ezi connect’ cable connector at the water heater.
Extension cables are available from Rinnai. Alternatively, two core sheathed (double insulated) flex
with minimum cross sectional area of 0.5mm² may be used. Cable lengths must not exceed 20 metres.

DO NOT attempt to connect cables to the 'Ezi connect' cable connector at the water

CAUTION

To connect up to two cables to the 'Ezi connect' cable connector

1. Isolate the electric power supply by switching the power point off and removing the power plug of

heater unless the electric power to the water heater is switched ‘off’ otherwise damage
to electrical components may occur.

the water heater from the electric power socket.

2. Remove the retaining screw of the 'Ezi connect' cable connector at the base of the appliance.

A

3. Swing the 'Ezi connect' cable connector door open and thread the cable through the weather seal

of the cable access hole in the direction shown allowing sufficient cable length so that the
sheath of the cable can be secured with cable clamp supplied with the transceiver.

4. Loosen screw terminals & and connect the cable spade connectors to these terminals and

B

C

D E

re-tighten. Polarity is not important, either wire colour can be connected to either terminal.

5. Return the 'Ezi connect' cable connector to the original position taking care not to damage cable

wires in the process and replace the retaining screw .

A

A

A

B

B

D

C

E

'Ezi connect' cable connector for water heater models:

INFINITY 26, 26 Plus, 20, 16, V1500, V1200.

HD 200e (REU-VM2630WC).

Connecting Three or Four Controllers

Repeat steps 1, 2 and 3 above.

To connect three or four cables, separate all the cables to be fitted into
pairs. Cut off the existing spade connectors from each pair and re­terminate each pair into a new spade connector (available from your
local electrical component retailer) so that there are only two sets

F

of spade connectors (4 spade connectors in total) to be terminated.

Repeat steps 4 and 5 above.

Rinnai Australia 33 Installation Manual

'Ezi connect' cable connector for water heater models:

INFINITY 32, 26i, EVIROSMART

HD 250e, 200e (REU-VRM2632WC), 200i

F F F

Three

Cables

Four

Cables

COMMISSIONING

TESTING

1. Before final connection of the water heater purge gas, hot water and cold water supply lines.
Swarf in either the gas or water supplies may cause damage.

2. Turn on gas and cold water supplies.

3. Test for water leaks and gas escapes near the unit.

4. Isolate gas supply. Remove test point screw located on the gas inlet connection and attach
pressure gauge.

5. Turn the power 'on' at the power point socket and turn on gas.

6. If water controllers are fitted, ensure that the controllers are 'ON', select the maximum delivery
temperature and open ALL available hot water taps including the shower. If remote controllers
are not fitted, simply open all available hot water taps. (CAUTION: Ensure building occupants do
not have access to hot water outlets during this procedure.)

7. Operate ALL other gas appliances at their maximum gas rate, in accordance with manufacturers
instructions.

8. With all gas appliances in operation at maximum gas rate, the pressure should read between

1.13 - 3.0 kPa on Natural Gas. On LPG the pressure should be 2.75 - 3.0 kPa. If the pressure is
lower, the gas supply is inadequate and the appliance will not operate to specification. It is the
Installers responsibility to check the gas meter, service regulator and pipe work for correct
operation/sizing and rectify as required. Note that the gas regulator on the appliance is
electronically controlled and factory pre-set. Under normal circumstances it DOES NOT need
adjustment during installation.

9. Close hot water taps including the shower.

10. Inspect and clean the strainer located on the cold water inlet connection. This procedure may
need to be repeated to ensure the strainer remains clear, especially on new installations.

11. If water controllers are fitted, it is necessary to test their operation through the complete range of
functions (refer to the Operation sections of this manual).

12. Confirm the hot water delivery temperature(s) using a thermometer. If controllers are fitted,
ensure temperatures exceeding 50°C cannot be selected on bathroom or ensuite controllers.
Refer to the section ‘Delivery Temperature’ below for more details.

13. After testing is completed, explain to the householder the functions and operation of the water
heater and temperature controllers (if fitted). Ensure the “PRODUCT RECORDS” on page 36 of
this manual is filled in and that the booklet is handed to the customer. Reminding the customer
to complete the Warranty Card and forward to Rinnai.

DELIVERY TEMPERATURE

"50°C Compliant" appliances are 'factory set' to deliver a maximum temperature not exceeding 50°C.
However, they have an incremental adjustment mechanism that allows the installer to increase the
appliance delivery temperature incrementally from the 'Factory Set’ value to temperatures exceeding
50°C. This is intended to enable compensation for temperature losses in the pipe-work between the
water heater and any outlets and achieve the required temperature at the outlet. Instructions for
incremental temperature adjustment are located in the instruction pocket inside the appliance front
cover.

For “Solar” appliances (labelled S20, S26 or “Solar” on the front cover)

To meet regulatory requirements, the delivery temperature is factory set and sealed. This setting
cannot be altered.

For all other models

Rinnai continuous flow water heaters are factory pre-set to various maximum delivery temperatures
depending on model and their intended application. For the majority of applications, the factory pre­set temperature is appropriate. In the unlikely event it is not this setting can be increased or decreased
by the installer. Instructions for changing the maximum delivery temperature are located in the
instruction pocket inside the appliance front cover.

Rinnai Australia 34 Installation Manual

COMMISSIONING

GAS PRESSURE SETTING

The regulator is electronically controlled and factory pre-set. Under normal circumstances it does not
require adjustment during installation.

Make adjustments only if the unit is not operating correctly and all other possible causes for incorrect
operation have been eliminated.

Instructions for Gas Pressure Setting are to be found in the instruction pocket located inside the
appliance front cover.

COMMISSIONING CHECK LIST

A commissioning check list is provided on the appliance front cover to enable the installer to step
through the correct commissioning procedure when installing a Rinnai Continuous Flow water heater.

The check list can also assist the installer to identify potential installation errors that may prevent the
appliance from operating correctly.

Rinnai Australia 35 Installation Manual

ACCESSORIES

Recess Box:

These allow the appliance to be recessed into the cavity of the wall saving precious space. Suitable
for painting.

Pipe Cover:

These hide the plumbing pipe-work and valves underneath the appliance. Two pipe covers can be
joined together for longer pipe-work.

Security Cage:

Protect the gas booster unit from theft and damage.

Security Bracket:

Prevent theft of the gas booster by securing it with the custom security bracket.

Sideways Flue Diverter

Designed to redirect flue products when the gas booster is installed on a balcony.

Contact Rinnai for further information about our accessory range and model suitability details.

PRODUCT RECORDS

Please take a moment to record the following information below for your own records.

Model No: REU- Serial No:

Your Retailer:

Address:

Contact Number: ( )

Purchase Date : / /

Your Installer :

Address :

Installers License No. :

Contact Number : ( )

Installation Date : / /

Certificate of Compliance No. :

Rinnai Australia 36 Operation/Installation Manual