Rinnai Infinity 17i User manual

Installation and User Manual
Infinity 17i REU-1720FFU-E
Infinity 11i REU-1116FFU-E
Continuous Flow Water Heater
Important.
Read these instructions carefully before attempting installation or use of
this appliance. All work must be carried out by competent persons.

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3
Contents………………………………………………………………..…………………3
Users Instructions...................................................................................................4
Features and Benefits………………………………………………..………….5
Important Information…………………………………………...……..………..6
Operation without Remotes……………………………………………….……8
Temperature Controls…………………………………………….……………..9
ECO Mode..............................................................................................15
Caring for the Infinity..................................................................................16
Error Messages…………………………………………………………………17
Restarting the Rinnai Water Heater………………………………………….19
Installation Instructions…………………………………………….………..…………20
UK Installation Instructions…………………………………………………….21
Unpacking Rinnai Water Heater…………………………….………………...22
Operation Principle……………………………………………...……………...23
Main Components………………………………………………..……………..24
Installation Instructions……………………………………………….………...26
Flue Requirements……………………...…….………………………………..31
Temperature Controls…………………………………………………………..35
Testing…………………………………………………………………......…….38
Gas Pressure Setting…………………………………………………….....….39
Dip Switch Setting………............……………………………………………...41
Dimensions…………………………...........................………………………..42
Technical Details..……………………………………............………………...43
Flow Chart…….………………………………………………......………..……44
Wiring Diagram…….……………………………………………………………46
Diagnostic Points…………………………………………………………….....47
PQ Diagrams……………………………………………………………………48
Letter of Compliance……………………………………………………....…...49
CE Certificate……………………………..……………………………………..50
Commissioning Checklist…………………...………………………………….51
UK Warranty………………………………….………………………………….52
Contact….............…………………………….…………………………………53
CONTENTS

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The following instructions are designed for the user of the water heater. The user may not
install or adjust the appliance in any way that requires the removal of the front of the unit. To
remove the front cover of the unit you must be certified competent to do so. Information for
the Installer is given on page 19.
All work done on this appliance must be done by a qualified gas engineer. A qualified
gas engineer must carry an up to date CORGI Registered Gas Installer picture
identification card while working on gas appliances. If you are unsure do not be afraid
to ask the engineer to show you the card. If you are still not satisfied call CORGI on
0870 401 2300 and verify the engineers name with their database. This is for your own
safety.
Responsibilities of the USER
The user must abide by all warnings given in this book. The user must only reference the
user section of the book, and may not carry out any procedure listed in the installer section.
The user must have the unit checked and maintained annually by a gas engineer.
The user must periodically check the water filter on the inlet to the appliance.
The user must not use the appliance in any way that it was not meant to be used. The user
may only use the heater as detailed in the User portion of this manual.
Interference with a sealed component is not permitted.
In case of defect parts only use genuine Rinnai components for replacement.
Conversion to other gas types should only be carried out by a qualified installer or a gas
distributor according to the practice in the country where the unit is installed.
The user must not store or use any flammable vapours or liquids in the vicinity of this or any
other appliance.
The user should familiarise themselves with the water heaters gas service valve and the
main gas valve to the premises.
Attention: air surrounding the water heater, venting and vent termination(s) is used for combustion
and must be free of any compounds that cause corrosion of internal components. These include
corrosive compounds that are found in aerosol sprays, detergents, bleaches, cleaning solvents, oil
based paints/ varnishes, and refrigerants. Therefore Rinnai recommends outdoor models be used for
these locations where possible.
The water heater, venting and vent termination(s) should not be installed in any areas where the air
may contain these corrosive compounds. If it is necessary for a water heater to be located in areas
which may contain corrosive compounds, Rinnai strongly recommends the following:
Indoor/Internal Water Heaters:
* DO NOT install in areas where contaminated air is present
* Consider before installation where air has the ability to travel within the building
* Where possible, install the water heater in a sealed closet so that it is free of contaminated indoor air
* Chemicals that are corrosive in nature should not be stored or used near the water heater
Outdoor/External Water Heaters and Vent Terminations of Indoor/Internal Water Heaters:
* Install as far away as possible from exhaust vent hoods
* Install as far away as possible from air inlet vents. Corrosive fumes may be released through these
vents when air is not being brought in through them.
* Chemicals that are corrosive in nature should not be stored or used near the water heater or vent
termination.
Damage and repair due to corrosive compounds in the air is not covered by warranty.
IF YOU SMELL GAS
Isolate the gas supply and get out of the building. Do not try to light any appliance. Do
not turn any light or other electrical switch on or off. Do not use any telephone in the
building. Call your gas engineer from a safe location and follow their instructions.
If you cannot reach your gas engineer ring the following: National Grid 0800 111 999
USERS INSTRUCTIONS

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Congratulations on purchasing the Technologically Advanced, Temperature Controlled,
Rinnai Hot Water System.
 The Rinnai Infinity 17i and Infinity 11i will NEVER RUN OUT of hot water. As long
as electricity, water, and gas supplies are connected, hot water is available when 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 set to
various temperatures. This is particularly useful when the hot water unit is installed
where young children or the infirm may be using the hot water. If required, the
temperature can be changed via the control pad on the front of the unit or with a
localised controller. For further information, please contact Rinnai.
 Rinnai Infinity internal units are powered flue appliances. This makes them
COMPACT, saving both floor and wall space.
 The temperature of outgoing hot water is CONSTANTLY MONITORED by a BUILT-
IN SENSOR. If the temperature of the outgoing hot water rises to more than 55ºC the
burner is shut OFF and only turned ON again when the temperature falls to below the
selected temperature.
 The burner lights automatically when the hot water tap is opened, and extinguishes
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 Infinity 17i and Infinity 11i have a built in controller on the front of the unit for
easy control. Two additional external temperature controllers can be mounted
remotely from the heater. This offers the following additional features:
Localised temperature setting.
Diagnostic message.
Error Codes.
 Temperatures selected at the controllers are retained in the SYSTEM MEMORY
when the controller gives up priority or the system is turned off. Temperatures over
55ºC will revert to 55ºC when power and/or priority is regained.
 Operating NOISE LEVEL IS VERY LOW.
 ERROR MESSAGES ARE DISPLAYED on the Temperature Controllers, assisting
with service.
 FROST PROTECTION device built in as standard.
FEATURES AND BENEFITS

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Excessively hot water is dangerous, especially for young children and the infirm. The
water heater allows you to control the temperature of your hot water to safe levels.
Do stay with children
whenever they are in the bathroom.
Do take them out of the bathroom if
you need to answer the phone or
door.
Do test the temperature of the
water with your elbow before
placing your child in the bath.
Do make sure that the tap is turned
off tightly.
Do consider setting your Rinnai
Infinity at a maximum temperature
of 50ºC.
Do install a child proof tap cover
OR,
Do install a child resistant tap.
Do not leave a toddler in the care of
another small child. The older child
may not have safely set the temperature.
IMPORTANT INFORMATION
Water temperature over 50ºC can cause severe
burns instantly or even death from scalding.
Children, disabled and the elderly are at the
highest risk of being scalded by excessively hot
water.
Always test the temperature of the water before
bathing or showering.
Burns from hot water taps can result in very
severe injuries to young children.
Hot water at 65ºC can severely burn a child in less
than half a second. At 50ºC it takes five minutes.
Burns can occur when children are exposed
directly to hot water or when they are placed into a
bath which is too hot.
DO
 Consider child—resistant taps
or inexpensive tap covers, both
of which prevent a child’s hand
from turning on the tap.
 Consider reducing the
temperature of the water
supplied to the hot tap to 50ºC.
This approach can be extremely
valuable because it requires a
one time action for a long term
reduction in risks of scalds.
This type of automatic protection
is important during times when a
parent or carer has been
distracted.
DO
NOT

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IMPORTANT INFORMATION
Always check water temperature before
use.
Refer to warning about hot water on
page 16 for important safety information.
Hot water may go cold without warning at
very low water flows (less than 3 l/min.)
The Infinity 17i and Infinity 11i control
the water temperature automatically. For
high temperatures it may reduce the flow.
The water from the hot tap may be re-
duced after the temperature shown on
the remote control is raised. The water
flow may also vary with the temperature
of the incoming water supply.
Keep flammable materials, trees, shrubs,
chemicals, etc. away from the flue outlet.
Do not touch the flue outlet. Do not insert
objects into the flue outlet.
On cold days steam may be discharged
from the flue outlet. This is normal, do
not be alarmed. It does not indicate a
fault.
OFF
If freezing temperatures
are expected, turn off the
water and gas, and drain
the water heater.
1. Water Off
2. Gas Off
3. Drain Water
If the power is left on the
Automatic Frost Protection
will prevent the unit from
Freezing. Frost protection
is standard on all units.

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Rinnai Infinity products have no pilot light and operate automatically as soon as a hot
water tap is opened.
The burner ignites with electronic ignition and the flame extinguishes as soon as water
flowing through the appliance stops.
Turn On by opening the hot water tap
The Rinnai Infinity 17i and Infinity 11i water heater have a built in controller on the front
cover for adjusting the temperature. Additional remote controllers are available to locate
near the points of use, and give precise digital temperature control.
Controllers can be easily added at any time after installation.OTE
OPERATION WITHOUT REMOTES

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TEMPERATURE CONTROLS
The purpose of a Temperature Controller is to enable the user to have complete control
over the hot water supply. Used correctly, the Infinity will supply hot water at the
temperature selected, even when the water flow is varied, or when more than one tap is
used. Adjustments to the operation of your hot water unit can be made with any of the
Temperature Controllers. Each Temperature Controller can be individually programmed.
Up to three Temperature Controllers can be fitted with the Infinity 17i and Infinity 11i.
One of these controllers comes as standard mounted on the water heater. Additional
Temperature Controllers are an optional extra.
The controllers have temperature selection, water flow volume, and water supply
temperature functions.
Various water temperatures (ºC) can be selected as follows:
35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 55, 60ºC
75ºC can be set on the dip switches.
When the remote is turned on the temperature will default to 40ºC.
While the hot water is running, the maximum selectable temperature will be 48ºC. This
provides additional safety for the consumer.
Suggested temperatures are:
Kitchen 50ºC - 60ºC; Bathroom 39ºC - 43ºC
These temperatures are suggested starting points for selection. You may find higher or
lower temperatures are more comfortable. Maintaining lower temperatures helps to save
energy. To obtain water temperatures lower than 35ºC simply add cold water.
Up to three controllers can be used for one Infinity 17i and Infinity 11i. When multiple
temperature controllers are used the only remote that can change the temperature is the
one with priority. This is shown by the lit priority indicator. When the Kitchen Controller
has priority the other remote’s priority indicator will go out. When the Bathroom
Controller has priority the other remote’s priority indicator will flash. A different remote
can only take priority of the system by pushing the priority button when the priority lamp
is out. This means that while the Bathroom Controller has priority no one else can alter
the temperature.
To take priority with the Kitchen Controller from the Bathroom Controller the priority
button on Bathroom Controller must be pressed to give priority away.
The temperature selected by the controller with priority will be available to all outlets.

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Remote temperature controllers are a feature that provides control over the water
temperature. The Rinnai Infinity 17i and Infinity 11i water heater can be operated with 1,
2, or 3 temperature controllers. The controller MC-92S-EN comes as standard with this
water heater installed into the front panel.
NOTE:
Each time a button is pressed, a BEEP will sound.
The BEEP sound can be muted by depressing the Temperature Controller Up and Down
buttons simultaneously for more than 3 seconds until the controller beeps.
To select the hot water temperature higher than 50°C press temp up button in 1.5
seconds.
This can be done for each Temperature Controller.
To return to original settings, repeat this step.
TEMPERATURE CONTROLS - OPERATING
High Temp. Indicator
Indicates that the water tem-
perature selected is 50ºC and
above (glowing,) or lower than
50ºC (off.)
Digital Monitor
Indicates the temperature se-
lected. Error messages flash in
the event of a fault.
Water
Control buttons
Used to select water
temperature.
Controller on Indicator
Indicates if this water control-
ler is in control of water deliv-
ery temperature.
Transfer Button
Used to transfer control priority
between water controllers.
The controller with priority has
command of the hot water de-
livery temperature. ECO Mode Button
Used to switch ECO
Mode on and off.
ECO Indicator
Indicates that the wa-
ter heater is in ECO
Mode (glowing,) or not
in ECO Mode (off.)
ON / OFF Button
Used to switch the wa-
ter heater on and off.
Water Heater
‘In Use’ Indicator
Indicates that the water
heater is working.