Rinnai Continuous Flow Water Heaters User manual

Continuous Flow Water
Heaters
Operation Manual
Internal Rinnai continuous flow water heaters must be installed with an approved Rinnai
flue system
Appliance must be installed, commissioned and serviced by a licensed tradesperson in
accordance with these instructions and all applicable local rules and regulations
Models are not suitable as a spa or swimming pool heater
Owner, please retain this manual for future reference
All gas appliances require regular servicing
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For Rinnai continuous flow water heaters manufactured from 2010 onwards
(serial number 09.12—xxxxxx)
Installer, please leave this manual with the owner

Rinnai New Zealand Continuous Flow Water Heater Operation Manual
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LIMITED WARRANTY
The Rinnai Warranty
Rinnai offers you real peace of mind with comprehensive warranty plans covering parts and
labour. For full details on Rinnai product warranties go to www.rinnai.co.nz.
This warranty is applicable to all Rinnai continuous flow water heaters installed from 2010. All
terms of the warranty are effective from the date of installation.
Warranty Summary
Rinnai Continuous
Flow Water Heater
Application Heat Exchanger All Other Parts
Parts Labour Parts Labour
White domestic
models
Domestic
WITHOUT Rinnai
controllers
10 years pro rata 3 years 3 years 3 years
Domestic WITH a
Rinnai controller
12 years pro rata 3 years 5 years 3 years
Commercial 1,500 hours or 1
year pro rata*
1,500 hours or
1 year*
1,500 hours or
1 year*
1,500 hours or 1
year*
Silver commercial
models
Domestic
WITHOUT Rinnai
controllers
12 years pro rata 3 years 5 years 3 years
Commercial 5,000 hours or 3
years pro rata*
1,500 hours or
1 year*
1,500 hours or
1 year*
1,500 hours or 1
year*
* Whichever comes first
Domestic vs commercial applications
A domestic application is defined as an installation where a continuous flow unit is set to
55 °C1or lower, delivering hot water to a single residential dwelling (not used for commercial
purposes2).
All other installations are defined as commercial applications.
For constant use applications such as, underfloor heating, circulating ring mains, spa pools (but
not limited to), the water heater must be sized and installed according to written guidelines
from Rinnai.
1 A solar installation using a Rinnai continuous flow unit in a single residential dwelling is considered a
domestic application.
2Examples of a commercial application in a domestic dwelling, hair salon, catering kitchen, motel,
communal care facility etc.

Rinnai New Zealand Continuous Flow Water Heater Operation Manual
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Please keep these instructions in a safe place for future reference.
RECORD AND ATTACH YOUR PROOF OF PURCHASE BELOW:
Your Retailer:__________________________________________________
Name:________________________________________________________
Address:______________________________________________________
_____________________________________________________________
Telephone:( _______ ) __________________________________________
Date of Purchase: ______ / ______ / _________
Proof of Purchase
WARNING
Improper installation, adjustment, alteration, service or maintenance
can cause property damage, personal injury or loss of life.
For assistance or additional information contact Rinnai on
0800 RINNAI (0800 746 624).

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Contents
About Your Continuous Flow Water Heater 5
Warning About Hot Water 6
General Safety 6
General Information 7
General Controller Information 9
Universal Controller (Compact) 12
Kitchen Deluxe Controller 14
Bathroom Deluxe Controller 16
Troubleshooting 20
Service Record 22
Draining Your Water Heater 24
Installer Details 26

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About Your Continuous Flow Water Heater
Congratulations on purchasing the latest technology Rinnai continuous flow water heater.
Before using or operating your water heater
Ensure the installer talks to you about the use and care of this appliance and that you
understand these instructions. The installer also needs to complete:
their installer details (p. 26)
the Commissioning Checklist (verifies the water heater has been installed and
commissioned correctly) supplied with the appliance
The installer needs to leave the checklist and operation manual with you.
Read these instructions for an overview on what is detailed in this manual about the use,
care and servicing of your Rinnai continuous flow water heater.
Principle of operation
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.
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HOTHOT
COLDCOLD
ON!ON!
ON!ON! HOTHOT
COLDCOLD
OFF!OFF!
OFF!OFF!

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Warning About Hot Water
Excessively hot water is dangerous. Rinnai continuous flow water heaters
through the use of water controllers allow you to control the temperature
of hot water to safe levels.
Water temperatures above 55 °C can cause instant severe burns, such
as scalding and may even result in death. Those most at risk; children,
disabled, elderly, and the sick. Hot water at 65 °C (a common water
temperature in New Zealand) can severely burn a child in less than half a
second. At 55 °C (preset temperature for domestic Rinnai continuous flow
water heaters) it takes a half minute.
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 off
Consider
Installing child proof tap covers or child resistant taps, both will prevent a child being able to
turn on the 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.
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General Safety
Keep flammable
materials,
spray cans, fuel
containers, pool
chemicals, trees,
shrubs etc. well
clear of the flue
outlet.
Do not:
Touch the unit
cover or the
flue outlet
Insert objects
into the flue
outlet
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HOT!

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General Information
Installation by a licensed tradesperson
Improper installation, adjustment, service or maintenance can cause serious injury, property
damage or death. Please ensure your installation is completed by a licensed tradesperson.
Frost kits
Frost protection is fitted as standard on all models. Frost protection operates
automatically (as required) whenever the appliance is connected to the electric power
supply.
If power has failed and there is a risk of damage from frost, turn off the gas supply to the unit
and open a tap slightly to allow flow through the unit. This may prevent damage from freezing.
If the appliance is not going to be used for an extended period and the electric power supply
is disconnected, turn off the water and gas supplies and arrange for your plumber to drain all
water from the appliance to prevent frost damage.
If for practical reasons a plumber is unable to drain your system we have an instruction sheet
on how to drain the unit at the back of this manual.
Safety devices
Your Rinnai continuous flow water heater has the following safety devices.
Flame failure - flame rod
Boil-dry protection - water flow sensor
Overheat protection (OHS) - 97 °C bi-metal switch
Overheat protection - 95 °C lockout thermistor
Fusible link - 129 °C thermal fuse
Pressure relief valve - open 2.1 MPa / close 1.5 MPa
Combustion fan rpm check - integrated circuit system
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Filter
Drain
Gas
Valve
GasColdHot
Turn Water Off
Turn Gas Off
Drain Water

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General Information
The flow will vary slightly depending on the incoming water temperature
and temperature selected. For example the water flow will be higher at
43 °C than at 55 °C.
There is also a minimum flow rate required for the continuous flow unit
to start. So if a hot water tap is only opened a fraction there may not be
enough flow to start the unit.
43°C
55°C
The Rinnai continuous flow water heaters are factory preset to a
temperature limit of 55 °C (excluding one commercial model - Infinity
HD200 external).
Temperature controllers are available to allow precise digital temperature
control—a great safety feature if you have young children. Controllers can
be fitted at any time (except in solar installations) after installation of the
hot water unit.
There is a recommended system layout for Rinnai continuous flow water
heaters used in solar installations. It is important your installer configures
your solar system correctly as water heaters in solar installations produce
higher than normal temperatures.
Rinnai water controllers cannot be used with Rinnai continuous flow
water heaters in solar installations as the hot water does not always pass
through the continuous flow unit.
Servicing
Rinnai has a service and spare parts network with personnel who are fully trained and
equipped to give the best advice on your Rinnai appliance. If your appliance needs
servicing, please call Rinnai (0800 746 624) from a land line and select option one for
a service centre in your area.
For reliable operation Rinnai continuous flow water heaters in domestic applications should
be serviced every two years (including inspection of the flue system if installed). A service
record has been provided at the back of this manual. For commercial applications Rinnai has a
recommended Commercial Maintenance and Servicing Schedule. This is available on request or
via our technical website - www.rinnai-tradesmart.co.nz.
Regular servicing is not covered by the Rinnai warranty.
Do not attempt to carry out any service work other than that mentioned in the troubleshooting
section. If you have any other faults or problems, please refer to your installer or contact
Rinnai.
Solar installations
Temperature limit - factory preset
Water flow

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General Controller Information
While hot water
outlets are
open the set
temperature may
be lowered BUT
not raised above
43 °C. Transfer of
priority between
controllers is not
possible. These are safety features.
Max.
43°C
To clean your water
controller, use a
soft damp cloth and
mild detergent.
DO NOT use
solvents.
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T
Depending on
weather conditions
and the length of
pipe between the
hot water unit and
the outlet in use,
there may be a
variation between
the temperatures displayed at the water
controller and water outlet.
49°C
50°C
There is no need
to turn water
controllers off
after use.
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.
Kitchen Kitchen
Bathroom
Do not push
the On/Off
button on any
controller when
the red water
heater ‘In Use’
indicator is on.
This will turn
off the water
heater causing the water to go cold.
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.
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.

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General Controller Information
Water controllers are an optional extra, they allow precise temperature control (no need to
mix hot and cold water). When used correctly, the hot water unit will deliver the selected
temperature, even when the water flow is varied, or when more than one tap is use.
Each water controller can be individually programmed, however the water heater can only
deliver one set temperature at any time. The available temperatures are as follows.
Kitchen Domestic
Commercial
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55 °C
60, 65, 75 °C
Bathroom (hot water) 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50 °C
Bathroom (bath fill) 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 °C
Suggested temperatures Kitchen
Shower
Bath fill
50 - 55 °C
37 - 43 °C
39 - 45 °C
To obtain water temperatures lower than 37 °C simply add cold water. Maintaining lower temperatures
helps save energy.
Rinnai controllers
Universal (Compact): temperature selection only
Kitchen Deluxe: temperature selection and voice prompting
Bathroom deluxe: temperature selection, shower saver, bath fill and voice prompting
Wireless: temperature selection only
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Controller configurations
A maximum of four water controllers can be fitted and a combination of wired and wireless
controllers can be used with the following limitations:
Maximum of one Kitchen Deluxe Controller (MC-100V)
Maximum of two Bathroom Deluxe Controllers (BC-100V)
Only one controller can be set to deliver 55 °C, this cannot be a Bathroom Deluxe
Controller
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