Rinnai infinity 20-2021 User manual

Temperature Controlled Continuous Gas Hot Water System
Simply the best hot water system available.
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CUSTOMERS OPERATING
INFORMATION
AND
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m zzzz INSTALLATION INSTRUCTIONS
This appliance shall be installed in accordance with:-
Manufacturer’s Installation Instructions
Local Water Authority Regulations
Local Gas Fitting Regulations
Municipal Building Codes
A.G.A.1G.A.N.Z. Installation Code for Gas Burning Equipment
Any other relevant Statutory Regulation
This appliance must only be installed, serviced and removed by an
Authorised Person.

CONTENTS
Features ................................................................................. 1
CUSTOMERSOPERATINGINFORMATION
Remote Controls ........................................................................ 2
Remote Control Layout ................................................................ 3
Turning the Infinity 20 ON .............................................................. 4
Adjusting Temperature ................................................................. 4
Transferring Priority of Temperature Selection ....................................... 5
Turning the Infinity 20 OFF ............................................................ 6
Safety Points ............................................................................ 7
Important Points ............................ ..‘. ......................................... 8
Error Messages ......................................................................... 9
Guarantee Information ............................................................... 10
INSTALLATIONINSTRUCTIONS
-Unpacking ...................................................................... 11
- Positioning ..................................................................... 12
- Installation - General ......................................................... 13
- Remote Controls - General .................................................. 14
- Remote Controls - Installation ............................................ 15-17
- Testing .......................................................................... 18
Wiring Diagram .......................... ............................................. 19
Block Diagram ........................................................................ 20
Dimensions ........................................................................... 21

FEATURES OF YOUR INFINITY 20
n The Infinity 20 is one of the most advanced water heaters available. It supplies hot
water at the temperatures selected on either of the two electronic Remote Controls
supplied as standard with the appliance.
w The Master Control (larger control) can be fitted conveniently close to the shower
or bath area, and is used to override the Sub Control (smaller control) which is
normally fitted in the kitchen or other convenient area.
n The Transfer button on the Master Control enables you to select and lock the
preferred temperature for shower or bath water. When locked in, this selected
temperature cannot be overridden by the Sub Control.
n The Sub Control is used to select temperatures for kitchen, laundry etc.
n Temperatures selected at both Controls are retained in the system memory.
n The Infinity 20 never runs out. While the electricity, gas and water supplies are
connected, hot water is available for as long as the hot water tap is open.
n The burner lights automatically when the hot water tap is opened, and goes out
when the tap is closed.
n AGA’s 5 Star Energy Rating makes the Infinity 20 one of the most efficient water
heaters available.
n The Infinity 20 is an externally mounted, power flued appliance. It is very compact,
saving both floor and wall space.
n Operating noise levels are very low.
H Error codes are displayed on the Remote Controls, assisting with service.
H Other features include automatic frost protection and over heat protection.
This Infinity 20 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.
Your Infinity20 has been approved byThe Australian Gas Association andTheGas
Association of New Zealand.
A.G.A. Approval Number 4673
G.A.N.Z. Approval Number 694
Please keep this instruction booklet in a safe place for future reference.
All dimensions referred to in these instructions are in mm,
unless otherwise specified.
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Customers Opemting Infomtation
PLEASE READ THESE INSTRUCTIONS CAREFULLY
To obtain the best performance out of your Infinity 20 it is important to use the Remote
Controls correctly.
Used as intended, the Infinity 20 will supply hot water at the temperature selected,
even when the water flow is varied, or when more than one tap is used.
1 REMOTE CONTROLS ~~~-1
The purpose of the Remote Controls is to enable you to have complete control over
your Infinity 20 from inside your house.
Two Remote Controls are supplied with the Infinity 20. The Master Control has a
Transfer button. This Control has the ability to override theSubControl and lock in the
water temperature selection desirable for shower and bathroom areas. It is suggested
that theMasterControl with theTransfer button beconvenientlyplaced nearthe shower,
bathroom area or other location where priority control of water temperature is required.
Normally, the Sub Control, without theTransfer button, would be located in the kitchen
or other convenient area, such as the laundry.
All necessary adjustments to the operation of your Infinity 20 can be made with either of
the two Remote Controls.
A different temperature can be stored in the system memory of each Control.
Various water temperatures can be selected in 16 steps from 35W to 75%. The
temperatures are 35-37-38-39-40-41-42-43-44-45-46-48-50-55-60-75OC.
Suggested temperatures are Shower 42OC
Kitchen 50°C.
These temperatures are suggested starting points for selection. You may find higher or
lower temperatures are more comfortable. Maintaining lower temperatures helps to
save energy
-2-

REMOTE CONTROL LAYOUT
1
2
6 1
3 1
6
2
MASTER CONTROL
6
SUB CONTROL
Number Control Function
1 ON/OFF Power switch to operate Infinity 20
hot water service.
2 COMBUSTION INDICATOR
Indicates that a hot water tap is
open in any location, while the
Infinity 20 has been turned ON
and is operating.
3 ON INDICATOR Indicates which Remote Control is
in control of adjusting the water
temperature selection.
4 TRANSFER Alternates the control of temperature selection between
Master and Sub Controls.
5 THERMOSTAT CONTROL
Adjusts the temperature selection
in 16 steps from 35% to 75%.
Selected temperatures are stored
in the system memory.
6 DIGITAL MONITOR
Indicates the temperature which
has been selected.
Error Code flashes in the event
of a fault.
-3-

TURNING THE INFINITY 20 ON
n TO TURN YOUR INFINITY 20 ON.
Simply press the ION/OFFI button
on either Control.
The ON indicator will glow on the
Control which you have operated.
This indicates that the Infinity 20 is
ready to supply hot water as soon
as a tap is opened.
To operate the Infinity 20 simply
turn any hot water tap on. This
will automatically light the burner
providing hot water at the
temperature displayed on the
Digital Monitor.
After installation, and when the
loN/OFFI button is first pushed,
42% will be displayed on the Digital
Monitor.
This is a safety feature. Thus even
if the shower is used without first
adjusting the temperature the hot
water will be at a safe temperature.
Master Control
Sub Control
r ADJUSTING TEMPERATURE
n TO INCREASE OR DECREASE
THE WATER TEMPERATURE.
The temperature can only be
adjusted on the Remote Control
where the ON indicator is
glowing, and the same
temperature will be displayed
on both Controls.
required temperature is displayed
on the Digital Monitor.
When any hot water tap is turned
on, hot water will be supplied at
the temperature displayed on the
Digital Monitor.
CHECK WATER TEMPERATURE
BEFORE ENTERING SHOWER
OR BATH
-4-

TRANSFERRING PRIORITY OF
TEMPERATURE SELECTION
n To Transfer priority of water
temperature selection to the
Master Control, simply press the
ITRANSFER 1button on the
Master Control.
The ON indicator on the Master
Control will glow to indicate that
priority of water temperature
selection has been transferred
to the Master Control.
After having transferred the
priority of water temperature
selection, 42W will be displayed
on the Digital Monitor.
.
n The water temperature can now be
selected using the Master Control.
Once the desired water
temperature is selected, the
Remote Control will store it in
the system memory until the
temperature is changed or the
mains power supply is turned off.
You can alternate priority of
water temperature selection
between the Master and Sub
Controls, without erasing the
individually stored temperatures
from the system memory.
n To Transfer priority of water
temperature selection back to
the Sub Control, simply press the
1st button again. The
temperature displayed will then
return to the temperature which
was previously selected at the Sub
Control, and the ON indicator will
glow to indicate priority control of
water temperature selection. Master Control
-5-

TURNING THE INFINITY 20 OFF
n TO TURN YOUR INFINITY 20 OFF
Simply press the -1 button
on either Remote Control.
This will shut the Infinity 20 down
completely
If hot water taps are opened when
the Infinity 20 is OFF,cold water will
flow from the taps.
Selected temperatures are retained
in the system memory, even when
the Remote Controls have been
turned OFF.
When the Controls are turned ON
again, the previously selected
temperatures will be displayed on
the Digital Monitor.
.
NOTE:
It is recommended that during long
periods of non-use, the system be
switched off at the Remote Controls.
-6-

SAFETY POINTS
ALWAYS CHECK WATER NEVER CHANGE WATER
TEMPERATURE BY HAND BEFORE TEMPERATURES OR OPERATE THE
ENTERING THE SHOWER OR BATH. REMOTE CONTROLS WHILE
SOMEONE ELSE IS IN THE SHOWER.
If 75OChas been selected at the Sub
Control and then priority of Do not push themlbutton on the Sub Control after having
temperature selection is transferred
to the Master Control and back
again, the temperature on the Sub
Control will drop to 60%. This is a
safety feature.
transferred priority of temperature
selection to the Master Control.
This procedure could cause sudden
changes in water temperature.
Do not touch the flue outlet when the
Infinity 20 is in operation. Keep flammable materials, trees,
shrubs etc. away from the Infinity 20.
On cold days steam may be
discharged from the flue outlet, this is
normal with a high efficiency appliance
and does not indicate a fault.
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IMPORTANT POINTS
solvents. Use a soft damp cloth. the power supply and freezing
conditions are expected, turn off water
and gas, and drain all water from the
Drain Water
rn the Infinity 20 Water flow needs to be more than
off at the Remote Controls after use. 2.5Umin. to operate the Infinity 20.
However, if you prefer to turn the Hot water temperature may vary at low
Controls off, selected temperatures will water flows or the Infinity 20 may go
be stored in the system memory at all . out without warning.
times while mains power remains
connected.
The Infinity 20 controls the water
temperature automatically. To do this it
sometimes needs to change the water
flow accordingly. The water flow from
the hot water tap may vary when the
selected temperatures on the Remote
Controls are adjusted. The water flow
may also vary from summer to winter,
as incoming water temperatures differ.
Depending on the weather conditions
and the length of the pipe between the
Infinity 20 and the tap in use, there
may be some variation between the
temperatures displayed at the Remote
Control and the temperature of the
water at the tap.
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