Rinnai BC-100V1Z Quick start guide

INFINITY Kitchen and Bathroom Deluxe controllers
Operation and installation guide
Your guide on how to use and install Rinnai Deluxe water controllers
This guide is for the use and installation of Rinnai Deluxe water controllers, models
MC-100V1Z and BC-100V1Z.
These instructions must be used in conjunction with the Rinnai water heater operation
and installation guides.
The Deluxe water controllers are compatible ONLY with the Rinnai water heaters shown
on p. 4.
To confirm the maximum number and combination of controllers that can be fitted to
your Rinnai INFINITY refer p. 5.
Bath

Rinnai INFINITY water controllers must be installed in
accordance with:
-Manufacturer’s installation instructions
Current:
-AS/NZS 5601 Gas Installations
-AS/NZS 3000 Electrical Standards
-AS/NZS 3500 Plumbing and Drainage Standards
Installation, servicing and repair shall be carried out only by
authorised personnel.
Warning
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury or
loss of life.
For more information about buying, using, and servicing of
Rinnai appliances call: 0800 RINNAI (0800 746 624).
Rinnai New Zealand Limited
105 Pavilion Drive, Mangere, Auckland
PO Box 53177, Auckland Airport, Auckland 2150
Phone: [phone]
Email: [email protected]
Web: www.rinnai.co.nz
www.youtube.com/rinnainz
www.facebook.com/rinnainz
Important

Warning about hot water ......................................4
Water controller congurations.............................4
Water temperature control....................................5
General controller information ..............................6
Kitchen Deluxe controller operation......................8
Bathroom Deluxe controller operation..................10
Water controller installation ..................................13
A26 controller communication cables...................16
EF26 controller communication cables.................17
N-Series controller communication cables ...........18
Contents

4 | Rinnai INFINITY Deluxe controller OIM 01-20
Warning about hot water
Excessively hot water is dangerous. Rinnai INFINITY continuous ow water heaters, through the
use of water controllers, allow you to control the temperature of hot water to safe levels.
DANGER BEWARE OF
SCALDING HAZARDS
HOT!
HOT!
Always
• Test the water temperature with your elbow before placing
your child in the bath, and feel the water yourself before
bathing or showering.
• Supervise children whenever they are in the bathroom.
• Make sure the hot water tap is turned o󰀨.
Consider
Installing child proof tap covers or child resistant taps, both will
prevent a child being able to turn on a tap.
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.
Water controller compatibility
The deluxe controllers are compatible with the current range of Rinnai INFINITY models, these are:
• Rinnai INFINITY A-Series
• Rinnai INFINITY EF26
• Rinnai INFINITY HD
• Rinnai INFINITY N-Series
For compatibility with older superseded models, please refer to the deluxe controller product page
on the website www.rinnai.co.nz.
Important
• Controllers cannot be installed in solar or other applications where the Rinnai INFINITY dip
switch setting is increased to above 65 °C
• Controllers cannot be installed in ring main applications using the N-Series
• The Bathroom Deluxe controller bath ll function will not work in applications where HD units
have been connected together with an EZ Connect cable

Rinnai INFINITY Deluxe controller OIM 01-20 | 5
Water temperature control
Controllers allow precise temperature control by the user. When used correctly, the hot water unit
will deliver the selected water temperature, even when the water ow is varied, or when more than
one tap is in use.
Only the Kitchen Deluxe controller can be designated as the master water controller, typically,
as the name suggests, the location for this is in the kitchen. All the remaining controllers are
designated sub-controllers and are for use in bathrooms, toilets, and laundries. The maximum
temperature for sub-controllers is 50 °C, to minimise the risk of burns.
Any controller that has priority is capable of setting the water temperature to be delivered. Priority
can only be given to one controller at a time, and changing priority can only be done when all hot
water taps have been closed.
Available controller temperatures are:
Controller Temperature °C
Kitchen 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55, 60*, 65*, 75*
Bathroom (hot water) 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50
Bathroom (bath ll) 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48
* Some Rinnai water heaters can be programmed to deliver higher temperatures from the master
water controllers, i.e. in commercial applications
To obtain water temperatures lower than 37 °C, open the cold water tap and add cold water until
the desired lower temperature is reached.
The hot water temperature is constantly monitored by a built-in sensor. If the hot water temperature
rises to more than 3 °C above the selected temperature, the burner will automatically go out. The
in-use indicator on the controller display will also go out. The burner will ignite again once the
outgoing hot water temperature reaches the temperature set on the controller.
Water controller congurations
A maximum of four (three for the N-Series) water controllers can be tted, with the following
provisos:
• Only ONE master controller can be installed. This can be a MC-100V1Z or a MC-601
(Universal controller). If a MC-100V1Z is tted it will always function as a master controller.
• Up to a maximum of two Bathroom Deluxe controllers can be installed.
• The fourth controller in any installation MUST BE a MC-601 Universal controller (not applicable
for the N-Series).

6 | Rinnai INFINITY Deluxe controller OIM 01-20
General controller information
S
O
L
V
E
N
T
Bath Bath Bath
Max. 43 ºC
Cleaning
To clean your controller, use a soft damp
cloth and mild detergent.
DO NOT use solvents.
Maximum temperature
While hot water outlets are open the set
temperature may be lowered, but not
raised above 43 °C, and transfer between
controllers is not possible. These are safety
features.
50 ºC
49 ºC
Bath
Temperature variation
Depending on weather conditions and the
length of pipe between the Rinnai INFINITY
and the outlet in use, there may be a
variation between the temperature displayed
at the water controller and at the water
outlet.
No need to turn o󰀨
There is no need to turn the controller o󰀨
after use.
BathBath
Kitchen Bathroom Kitchen
Bath
Kitchen default 50 °C
As a safety precaution, if a kitchen controller
temperature is set above 50 °C, transferring
and then returning priority will result in a
default set temperature of 50 °C. This is a
safety feature.
Do not press On / O󰀨 when in use
Do not push the On / O󰀨 button when the red
water heater In Use indicator is on. This will
turn o󰀨 the water heater causing the water to
go cold.

Rinnai INFINITY Deluxe controller OIM 01-20 | 7
55 °C maximum
Temperatures higher than 55 °C should not
be able to be selected on controllers installed
in bathrooms, ensuites, or toilets. This is to
reduce the risk of burns from hot water. If this
is not the case, the controllers have been
incorrectly installed and you should contact
your installer.
Always check before use
Check the water temperature before use.
A parent or carer should ALWAYS check
the temperature before a child is placed in
contact with hot water.
Controllers need to be turned on for delivery of hot water
The water heater will not heat the water unless the controller(s) are turned on. If water is owing
before the controller is turned on, the water heater will not heat the water. Turn o󰀨 the tap for a few
seconds, then turn on again.
Ignition problems
If the water heater fails to ignite, the In Use button will not illuminate. The water heater will not
attempt re-ignition until water ow is stopped for a few seconds and then re-started.
When gas bottles have been changed or the gas supply is disrupted (controller may display error
code 11 or 12) ignition may fail and the In Use button will not illuminate. The water ow may need
to be stopped and re-started several times to get the water heater to work.
Bath
Avoid water in the speaker
Avoid getting water directly into the speaker
(circled in images above) as this may cause
damage.

8 | Rinnai INFINITY Deluxe controller OIM 01-20
Kitchen Deluxe controller operation (MC-100V1Z)
Bath
Shower saver / bath ll
Indicates the shower saver / bath
ll function is operating
Water temperature indicator
Indicates the selected hot water
temperature
In use indicator
Indicates the water heater is in
operation and delivering hot water
Clock
12-hour AM / PM clock display.
In the event of a fault error codes
will ash here.
Speaker
Digital monitor
Up and down buttons
When in ‘normal’ mode these
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
Used to switch the controller
between normal, voice, or clock
modes.
Transfer
Used to transfer priority between
the controllers. The controller with
priority has command of the hot
water delivery temperature. This
button is illuminated when the
controller has priority.
On / O󰀨
Used to switch the water heater
on and o󰀨. Button is illuminated
when the controller has priority.
Turning on
If the controller is switched o󰀨 (no digits displayed in the digital monitor), press the On/O󰀨 button
once. The On/O󰀨 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.
Adjusting the temperature
Select the desired temperature using the up or down buttons until the required temperature is
displayed.
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 controller.
Once the hot water is running, if the set temperature is either too hot or cold, press the up or down
buttons until the desired temperature is reached.
While hot water outlets are open, the set temperature may be lowered, but it can’t be raised
above 43 °C. In addition, transfer of priority between controllers is not possible. These are
safety features.
Transferring priority
To control the water delivery temperatures when using two or more controllers transfer the priority
to the controller you wish to use.
Illuminated On/O󰀨 and Transfer buttons conrm that the desired controller is in control of the water
delivery temperature. If the On/O󰀨 button is not illuminated, press the Transfer button once, the
On/O󰀨 and Transfer buttons will illuminate indicating that the hot water temperature control has
been transferred and that the hot water unit will be ready to supply hot water once a hot water tap
is opened.
IMPORTANT

Rinnai INFINITY Deluxe controller OIM 01-20 | 9
Setting the sound options
To set the sound options, press the Mode button once to place the controller into ‘voice’ mode. Use
the up and down buttons to select one of the desired audible settings as follows:
• High
• Medium
• Low
• O󰀨 (sound o󰀨 mutes all voice prompts and audible tones)
Press the Mode button twice to return to normal operation. If no buttons are pressed for
approximately ten seconds the controller will return to normal operation.
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 display the word Clock will be displayed and the clock digits will ash.
Use the up or down buttons to select the 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 operation, press the Mode button once. If no buttons are pressed for
approximately 60 seconds the controller will return to normal operation.
The time is always displayed regardless of whether the controller is turned on or o󰀨.
The clock may need resetting if power to the water heater is disrupted due to a power failure or if
the power is switched o󰀨 over a prolonged period. The default time is set to AM 12:00.

10 | Rinnai INFINITY Deluxe controller OIM 01-20
Bathroom Deluxe controller operation (BC-100V1Z)
Shower saver / bath ll
Indicates the bathll / shower saver function is
operating
Water temperature indicator
Indicates the selected hot water temperature
Water level indicator
Indicates bathll / shower saver volume
selected
In use indicator
Indicates the water heater is in operation and
delivering hot water
Transfer
Used to transfer
priority between
the controllers. The
controller with priority
has command of the
hot water delivery
temperature. This
button is illuminated
when the controller
has priority.
Clock and remaining
water volume
indicator
12-hour AM/PM clock
display.
Indicates how much
water remains to
ow for the selected
shower saver / bath
ll—decreases while
the bath lls / shower
runs.
Up and down buttons
When in ‘normal’ mode these
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.
Shower saver / bath
ll button
Illuminates when
selected
On / O󰀨
Used to switch the
water heater on
and o󰀨. Button is
illuminated when the
controller has priority.
Clock
Used to select clock
setting mode
Water volume selection
Used to select shower saver / bath ll volume
Sound volume button
Used to select the voice and audible tone
options
Turning on
If the controller is switched o󰀨 (no digits displayed in the digital monitor), press the On/O󰀨 button
once. The On/O󰀨 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.
Adjusting the temperature
Select the desired temperature using the up or down buttons until the required temperature is
displayed.
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 controller.
Once the hot water is running, if the set temperature is either too hot or cold, press the up or down
buttons until the desired temperature is reached.
While hot water outlets are open, the set temperature may be lowered, but it can’t be raised above
43 °C. In addition, transfer of priority between controllers is not possible. These are safety features.
Transferring priority
To control the water delivery temperatures when using two or more controllers transfer the priority
to the controller you wish to use.

Rinnai INFINITY Deluxe controller OIM 01-20 | 11
Illuminated On/O󰀨 and Transfer buttons conrm that the desired controller is in control of the water
delivery temperature. If the On/O󰀨 button is not illuminated, press the Transfer button once, the
On/O󰀨 and Transfer buttons will illuminate indicating that the hot water temperature control has
been transferred and that the hot water unit will be ready to supply hot water once a hot water tap
is opened.
Setting the sound options
To set the sound options, press the Mode button once to place the controller into ‘voice’ mode. Use
the up and down buttons to select one of the desired audible settings as follows:
• High
• Medium
• Low
• O󰀨 (sound o󰀨 mutes all voice prompts and audible tones)
Press the Mode button twice to return to normal operation. If no buttons are pressed for
approximately ten seconds the controller will return to normal operation.
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 display the word Clock will be displayed and the clock digits will ash.
Use the up or down buttons to select the 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 operation, press the Mode button once. If no buttons are pressed for
approximately 60 seconds the controller will return to normal operation.
The time is always displayed regardless of whether the controller is turned on or o󰀨.
The clock may need resetting if power to the water heater is disrupted due to a power failure or if
the power is switched o󰀨 over a prolonged period. The default time is set to AM 12:00.
Setting shower saver / bath ll
This function allows a preset water volume and temperature to be selected and run automatically.
Default settings:
• Temperature = 40 °C
• Volume = 100 L (range 30-400 L)
Press the Shower Saver / Bath Fill button once. The button will illuminate and the voice prompt and
tone will sound. Ensure you have the voice and sound turned on.
To select the temperature use the Temperature up and down buttons. The selected temperature
will be displayed on the monitor and will remain as the default temperature until it is changed.
When lling a bath for the rst time, it is recommended that a low bath ll volume such as 60 L or
lower be used. During subsequent bath lls the volume can be adjusted.
A volume counter, to highlight the remaining volume of water to be delivered, displays on the
controller below the temperature display, replacing the clock when the shower saver / bath ll
function is on.

12 | Rinnai INFINITY Deluxe controller OIM 01-20
When lling the bath or if the water has been turned o󰀨
Be careful not to overll the bath. An average bath volume is 160 L. It is
recommended that when lling a bath for the rst time you should:
• remain by the bath during the lling process
• use a low bath ll volume such as 60 L or less
If the shower saver / bath ll is interrupted (water is turned o󰀨) for any reason and there is more
than half the volume of the set amount of water delivered, the shower saver / bath ll will reset
itself back to normal when the operation is turned on again, refer examples below.
Set
volume
Delivered volume
(bath ll interrupted, tap closed)
Delivered volume
(bath ll restarted, tap turned on again)
160 L 50 L 110 L
160 L 110 L Resets back to normal operation, bath ll
will only be 110 L
Using shower saver / bath ll
Press the shower saver / bath ll button once. The button will illuminate and a voice
prompt and tone will sound. During shower saver / bath ll, the bath indicator will also be
displayed on the Kitchen Deluxe controller.
The voice prompt will say ‘The hot water system is ready. Open the hot water tap’. Open the hot
water tap for the shower or bath.
To stop the shower saver / bath ll
To stop the water ow while in shower saver / bath ll, press the Shower Saver / Bath Fill button.
The button will ash and a voice prompt will say ‘Hot water is not available. Turn o all hot water
taps and push the bath ll button’—follow the voice prompt instructions.
When shower saver / bath ll operation nishes
Once shower saver / bath ll is nished the following occurs:
1. Flow from the shower / bath stops
2. Shower Saver / Bath Fill button ashes
3. Kitchen Deluxe controller if tted will ash with a bath indicator
4. A tone will sound
5. A voice prompt will say ‘Bath ll is complete. Turn o the bath hot water tap and push the Bath
Fill button’
Follow the voice prompt instructions. Please note that the water heater will not allow hot water to
ow from any xture until the Shower Saver / Bath Fill button has been pressed.
Using multiple controllers
The Rinnai INFINITY can be turned on and o󰀨 at any water controller. If more than one controller is
tted, press the Transfer button to transfer priority to the desired water controller.

Rinnai INFINITY Deluxe controller OIM 01-20 | 13
Water controller installation
General information
Other manufacturers water controllers are NOT compatible with Rinnai water heaters. Water
controllers MUST NOT be used with any solar boost water heater, or N-Series ring main
applications.
Rinnai water controllers bought in from other countries are not compatible with Rinnai appliances
sold in New Zealand.
Controller congurations
Refer p. 5.
Controller location
• Do not install water 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 water controllers outdoors unless protection from water/dust ingress and sunlight
are provided
• The Kitchen Deluxe (MC-100V1Z) controller MUST NOT be installed in a bathroom
• Do not install water controllers in direct sunlight
• Do not install water controllers against a metal wall unless the wall is earthed in accordance
with AS/NZS 3000
• Water controllers must not be installed where chemicals such as benzene, alcohol, turpentine,
hydrogen sulphide, ammonia, chlorine or similar chemicals are in use
The water controller is water resistant, however excessive exposure to water may result in
damage. Durability is improved when positioned OUTSIDE the shower recess.
• Avoid direct exposure to water or steam as these may cause the controller to malfunction
• Water controllers must be installed in shaded clean locations. They should be tted out of reach
of children (recommended height 1.5 m from the oor), and installed at least 400 mm above the
highest part of a sink, basin or bath.
The deluxe controllers use a liquid crystal display (LCD) for the digital monitor.
Light reection can make the LCD di󰀩cult to see at direct eye level. For best
results mount the controller lower than eye level.
Communication cables
Controllers operate at an extra low voltage (12 V DC), which is supplied from the water heater. A
10 m communication cable is supplied for connection to the water heater. ONLY Rinnai supplied
communication cables may be used. Additional 10 m cable can be purchased.
Additional 10 m cable codes:
• Kitchen Deluxe R1369
• Bathroom Deluxe R1069

14 | Rinnai INFINITY Deluxe controller OIM 01-20
Mounting the Kitchen Deluxe controller (MC-100V1Z)
1. Determine the position of the controller.
2. Using the wall mounting bracket as a template, mark and drill three holes (mounting and cable
access), refer dimensions on next page.
3. Fix the mounting bracket to the wall using the appropriate xings.
4. Run the cable through the hole in the wall.
5. Carefully remove the face plate from the controller using a screwdriver.
6. Connect the cable to the controller. At this point cables from other controllers may also be
connected to the screw terminals of the kitchen controller, eliminating the need for multiple
cable runs directly to the water heater.
Controllers are not polarity sensitive. Feed excess cable lengths into the wall cavity to avoid
pinching the cables.
7. Fasten the controller to the wall mounting bracket. Avoid over-tightening the xings as this may
cause damage. Once secure replace the face plate.
5 6 6 7
Mounting the Bathroom Deluxe controller (BC-100V1Z)
1. Determine the position of the controller.
2. Using the wall mounting bracket as a template, mark and drill three holes (mounting and cable
access), refer dimensions on next page.
3. Run the cable through the access hole ensuring the connector end of the cable to located
nearest to the controller.
4. Put the double sided self-adhesive seal to the back of the controller.
5. Remove the face plate from the controller, do this by placing your thumbs on the front of the
display, and while hooking your ngers behind the top of the plate gently push—DO NOT use a
screwdriver as this may damage the controller.
6. Connect the cable to the water heater. Feed any excess cable length into the wall cavity to
avoid pinching the cables.
7. Fix the controller to the wall using the appropriate xings. Avoid over-tightening the xings as
this may cause damage. Once secure replace the face plate.
3 4 5 7
Controller
cable
Connector
Backing seal
Remove film to expose
self-adhesive

Rinnai INFINITY Deluxe controller OIM 01-20 | 15
Dimensions
Kitchen Deluxe
MC-100V1Z
Bathroom Deluxe
BC-100V1Z
AHeight 120 mm 104 mm
BWidth 128 mm 202 mm
CDepth 20 mm 22 mm
DVertical mounting hole centre 83 mm1-
EHorizontal mounting hole centre - 181 mm
FCable access hole size / position Ø20 mm2Ø20 mm centre
1The MC-100V1Z uses a metal mounting bracket that has three mounting points both on and either side of the vertical
centreline.
2 The MC-100V1Z cable access is horizontally o󰀨set to the right of the centreline, inside the metal mounting bracket,
refer image below.
Kitchen Deluxe (MC-100V)
F (2)
(1)
(1)
BC
AD
Bathroom Deluxe (BC-100V)
C
A
E
B
F

16 | Rinnai INFINITY Deluxe controller OIM 01-20
A-Series controller communication cables
Wired water controllers operate at an extra low voltage (12 V DC) which is supplied from the water
heater, a 10 m long communication cable is supplied for connection to the water heater. Only
Rinnai supplied communication cables may be used.
The water heater end of the cables is tted with spade terminals. Only two pairs of cables (four
spade connectors in total) may be terminated. When attaching three or four cables it is necessary
to join the cable terminators as shown below.
For each pair cut o󰀨 the existing spade connectors and re-terminate each pair into a new spade
connector (A). Spade connectors are available from your local electrical component retailer
A
Single cables can be used
when terminating up to two
communication cables.
Paired cables are to be used
when terminating three or four
communication cables.
Connecting one or two communication cables
Follow steps one through ve below to terminate the cables to the water heater.
Connecting three or four communication cables
To connect three or four cables, separate all the cables to be tted into pairs.
A
A
A
When
terminating
three cables
When
terminating four
cables
Follow steps one through ve below to terminate the joined cable pairs to the water heater.
1. Isolate the power supply by switching the power point
o󰀨 and removing the power plug of the water heater
from the electric power socket.
2. Removing the retaining screw of the cable connector
at the base of the unit.
3. Swing the cable connector door open and thread the
cable through the weather seal of the cable access
hole, allowing su󰀩cient cable length so that the sheath
of the cable can be secured with the cable clamp
supplied with the transceiver.
4. Loosen the screw terminals and connect the cable
spade connectors to these terminals and re-tighten.
Polarity is not important, either wire colour can be
connected to either terminal.
5. Return the cable connector to the original position,
taking care not to damage the cable wires in the
process, and replace the retaining screw.
Retaining
screw
Cable access
Cable clamp

Rinnai INFINITY Deluxe controller OIM 01-20 | 17
EF26 controller communication cables
Wired water controllers operate at an extra low voltage (12 V DC), which is supplied from the water
heater. A 10 m long communication cable is supplied for connection to the water heater. Only
Rinnai supplied communication cables may be used.
Connecting communication cables to the mini-plug
DO NOT attempt to connect water controller cables to the mini-plug when it is plugged
into the PCB unless the power to the water heater is switched OFF, otherwise damage to
electrical components may occur.
Water controllers are connected to the PCB by a dedicated pre-wired mini-plug.
Standard electrical cable
connectors can be used
to terminate the water
controller wires to those on
the mini-plug. The existing
spade connectors, of the
communication cables, will
need to be removed prior to
termination. Controllers are
not polarity sensitive, however to avoid confusion it is recommended that like coloured wires be
terminated together.
CAUTION
Electrical connectors
(supplied with water controllers )
Communications cable
MC-100V, wireless controller
Pre-wired mini-plug
(supplied)
Communications cable
MC-91, MC-601, BC-100V
Connecting communication cables to the
PCB (refer image below)
DO NOT attempt to connect the mini-plug or
water controller cables to the water heater
unless the power to the water heater is
switched OFF, otherwise damage to electrical
components may occur.
1. Isolate the power supply by switching the
power point off and removing the water
heater plug from the power socket.
2. Remove the appliance front cover.
3. Insert the mini-plug and the connected
water controller cables through the cable
access at the base of the appliance. Ensure
the cable connectors are located inside the
appliance for protection.
4. Locate the PCB (bottom right of the
appliance), and carefully move the plastic
safety cover out of the way.
5. Locate the accessory port socket (bottom
front of PCB).
6. Plug the mini-plug into the accessory port
socket, the plug and socket are keyed
so that they can only be plugged in one
direction.
7. Proceed with the water controller
installation and connect the communication
cables to the controllers.
Cable access
PCB
PCB
Safety
cover Accessory port socket
Accessory
port socket
connection

18 | Rinnai INFINITY Deluxe controller OIM 01-20
N-Series controller communication cables
Connecting communication cables to the mini-plug
DO NOT attempt to connect water controller cables to the mini-plug when it is plugged
into the PCB unless the power to the water heater is switched OFF, otherwise damage to
electrical components may occur.
Water controllers are connected to the PCB by a dedicated pre-wired mini-plug.
Standard electrical cable connectors can be used to terminate the water controller wires to those
on the mini-plug. The existing spade connectors, of the communication cables, will need to be
removed prior to termination. Controllers are not polarity sensitive, however to avoid confusion it is
recommended that like coloured wires be terminated together.
CAUTION
Electrical connectors
(not supplied)
Pre-wired mini-plug
(supplied)
Communications cable
MC-91, MC-601, BC-100V
Communications cable
MC-100V, wireless controller
Connecting communication cables to the PCB (refer image on next page)
DO NOT attempt to connect the mini-plug or water controller cables to the water heater unless the
power to the water heater is switched OFF, otherwise damage to electrical components may occur.
1. Isolate the power supply by switching the power point off and removing the water heater plug
from the power socket.
2. Remove the appliance front cover.
3. Insert the mini-plug and the connected water controller cables through the cable access at
the base of the appliance. Ensure the cable connectors are located inside the appliance for
protection.
4. Locate the PCB (bottom right of the appliance), and carefully rotate the plastic safety cover out
of the way.
5. Locate the accessory port socket (bottom front of PCB).
6. Plug the mini-plug into the accessory port socket, the plug and socket are keyed so that they
can only be plugged into the one direction).
7. Proceed with the water controller installation and connect the communication cables to the
controllers.

Rinnai INFINITY Deluxe controller OIM 01-20 | 19
Cable access
PCB
Safety cover
Accessory port socket
PCB
Accessory port
socket
Connecting communication cables to the PCB

Rinnai INFINITY Deluxe controller OIM 02-20
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