Rinnai Smart Cylinders ME13548830S Instructions for use

Models: ME13548830S, ME18048830S, ME25059030S
Rinnai Smart Cylinders™
Mains pressure indoor enamel
Owner and installer guide
Installer
Please leave this guide with the home owner as it contains
important safety and warranty information.

Cylinders shall be installed in accordance with:
- Manufacturer’s installation instructions
- Current AS/NZS 3000, AS/NZS 3500, and G12/AS1
Installation, servicing and repair shall be carried out only
by authorised personnel.
Owner, please retain this guide for future reference.
Installer, please leave this guide with the owner.
Warning
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury
or loss of life.
The appliance is not to be used by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction.
Important:
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]
Fax: [phone]
Email: [email protected].nz
Web: www.rinnai.co.nz
www.youtube.com/rinnainz
www.facebook.com/rinnainz

cnt:
About your Rinnai Smart Cylinder ................... 4
Maintenance and servicing ............................... 7
Troubleshooting.............................................. 8
Installation
Specification summary.................................... 12
Dimensions...................................................... 13
Plumbing setup ............................................... 14
Storage and delivery temperatures................. 15
Water quality ................................................... 16
Electrical supply and connections................... 17
Valves and fittings ........................................... 18
Commissioning ............................................... 18
7 Year Limited warranty ................................... 19
Warranty examples in the real-world .............. 21
Proof of purchase ............................................ 22
Installer details ................................................ 22

4 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
About your Rinnai Smart Cylinder™
Your Rinnai Smart Cylinder learns the typical hot water use in the home and then
heats the water to suit the anticipated demand. Energy is saved as water is not fully
heated when you don't need it.
The mode button enables selection with the + and - buttons to switch between:
Your Rinnai Smart Cylinder comes factory preset to operate in automatic mode, at a level setting
of three. We recommend staying with this setting to achieve a balance between running cost
savings and ensuring you have enough hot water.
iQ automatic mode
Permanently monitors and learns hot water usage habits. After a minimum of one
week it will automatically adjust the cylinder heating times according to your hot water
usage pattern. A certain amount of hot water is guaranteed at all times depending on
the level you select.
Manual mode
Permanently maintains the total volume of water at a temperature according to the
selected level—operates just like a traditional electric storage cylinder.
Vacation mode
Keeps the water in the cylinder at a minimum temperature (6 °C) and prevents the
water freezing in colder areas.
Child lock indicator
Screen is able to be locked to avoid settings being changed. To lock and unlock press
the mode and - buttons at the same time and hold for three seconds.
Maintenance/error indicator
Error codes are indicated by the maintenance logo, a flashing background light, and
the error code number.
Vacation days and error code
Displays either the number of vacation days (if set) or error code.

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 5
iQ automatic mode
This is the preset
default mode for your
Rinnai Smart Cylinder.
In this mode the level
indicator displays an estimate
of the amount of hot water
available in the tank. The level
is monitored and updated in
real-time.
There are five different
settings available. Your Rinnai
Smart Cylinder has been
preset to operate on level
three which will achieve a
balance between energy
savings and ensuring you
have enough hot water
available.
Level Comfort
level
Energy
saving
level
1 -- +++
2 - ++
3 + +
4 ++ -
5 +++ --
Changing the level setting
Press the + or - buttons and
select the level you require—
if you don't press any button
for three seconds the system
will set the level change.
The system will then default
to showing the estimated
amount of hot water in the
cylinder again.
Manual mode
In manual mode the
control regulates the
water temperature
in the cylinder to a preset
level. The temperature level
is selected by using the +
or - buttons, there are five
different settings available.
Level Approx. water
temp. in
cylinder
1 50 °C
2 55 °C
3 60 °C
4 65 °C
5 70 °C
Biosafe operation
To meet the New Zealand
Building Code requirement1
to disinfect water for
legionella bacteria2, the
system will perform heating
above 60 °C whenever risk
conditions (<60 °C for 21 days)
are detected.
Vacation mode
If you are going away
switch the cylinder
to vacation mode. In
vacation mode the cylinder
will be set to maintain
the water at a minimum
temperature of 6 °C to prevent
the water from freezing.
To select press the mode
button until the suitcase
icon appears. By default the
number of vacation days is
undefined (--). If no period is
selected the cylinder will stay
in vacation mode until the
mode is manually changed.
The number of days
(maximum 99) can be
specified by using the + or -
buttons. A long press of the
buttons will perform a fast
speed day selection. After the
specified period, the cylinder
will automatically go back to
the operating mode that was
selected before vacation was
set.
Vacation can be cancelled
by pressing the iQ or manual
mode buttons.
Warmup indicator
A slow blinking of the shower
symbol indicates when the
element is heating the water
(occurs in automatic and
manual modes).
default setting
1Clause G12.3.9, Acceptable Solution G12/AS1 6.14.3
2 Legionella is a bacterium that can cause Legionnaires’ diseasea severe form of pneumonia

6 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Safety messages
• Element cover
Do not remove the
element cover, this will
expose 230 V wiring, it
must only be removed by
an authorised person.
• Damaged components
If any component is
damaged, it must be
replaced by an authorised
person using Rinnai
replacement parts.
• Child supervision
Children should be
supervised to ensure they
do not play with any part
of the hot water system.
• Hot pipe work
Care should be taken not
to touch the pipe work
from the cylinder as this
could be very hot.
Safety devices
Your cylinder is fitted with a:
• Temperature & Pressure
Relief (TPR) valve that
ensures the water remains
at a safe pressure and
temperature.
• Automatic thermostat
to maintain water
temperature.
• Temperature override
cutout for heating
element.
The operation of the
thermal cutout can
indicate a dangerous
situation. Do not reset
the thermal cutout until
the water heater has been
serviced by a qualified
person.
Do not operate the system
unless all the safety devices
are fitted and are in working
order. It is also important that
you do not tamper or remove
any of these devices.
Hydrogen gas
If hot water is not
used for two weeks
or more, a quantity of
hydrogen gas, which is highly
flammable, may accumulate
in the cylinder. To dissipate
safely, it is recommended a
hot tap (nonelectrical) be
turned on for two minutes at
a sink, basin or bath. During
this procedure there must be
no smoking, open flame, or
any other appliance operating
nearby.
Draining and filling the
system
This normally occurs during
installation or servicing and
must be carried out by an
authorised person.
Installation by a licensed
tradesperson
Only a licensed tradesperson
can install, adjust, maintain,
and service this water heater.
Any work carried out by a
non-licensed tradesperson
is illegal and will void any
warranty.
Turning the cylinder on/off
(we don't recommend this)
If you switch the
cylinder off for more
than 18 hours it will
lose all the water usage
history.
WARNING
IMPORTANT
Important
All cylinders have the potential to leak water. To minimise damage to other areas of your home, ensure that your
cylinder has been installed with a drip tray—the person doing the installation is responsible for this.
* Refer to the warranty terms and conditions in this guide for more information.

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 7
Maintenance and servicing
Hot water systems, like cars, require regular maintenance and servicing.
To ensure longevity of your cylinder we recommend the following.
Period What needs to be done
Every six months TPR (temperature & pressure relief) valve—operate the easing gear
Year five Inspection and service of the entire hot water system, including the element* and anode
Every 24 months
after year five
Inspection and service of the entire hot water system, including the element* and anode
* In hard water areas the element(s) must be periodically descaled. To do this the unit must be drained and the element(s)
removed.
TPR valve
Depending on the model the
valve is located near the top,
or on top of the cylinder. It is
essential for safe operation.
The TPR valve works by
automatically venting hot water
if the temperature or pressure
of the water in the cylinder gets
too high.
Every six months operate the
easing gear to remove lime
deposits and to check that
it is not blocked. As this will
discharge hot water, ensure no
one is near the drain line.
Failure to operate the
relief valve easing gear
at least once every six
months may result in the water
heater exploding. Continuous
leakage of water from the valve
may indicate a problem.
It is important that you raise
and lower the easing gear
gently. During the operation,
if the valve does not discharge
water when the easing gear is
lifted, or does not seal again
when closed, arrange for an
authorised person to come and
inspect the system immediately.
During servicing of
your cylinder the
TPR valve needs to
be checked and/or replaced.
This needs to be done by an
authorised person at intervals
not exceeding five years, or
more frequently in areas where
the water is classified as hard.
A TPR valve must not be
replaced with one that has a
higher pressure rating than that
specified for the cylinder.
Anodes in enamel tanks
Storage tanks manufactured
from metal can be susceptible
to corrosion. The combined
effects of water pressure,
temperature and water
chemistry can create an
aggressive environment for
corrosion of some materials. For
this reason anodes are placed in
enamel tanks so as to corrode
first. Anodes should be changed
every five years or more
frequently in hard or aggressive
water areas.
Maintenance and servicing
Rinnai has a maintenance,
service, and spare parts network
with personnel who are fully
trained and equipped to give
the best advice on your Rinnai
product. Regular maintenance
and servicing is not covered by
the Rinnai warranty.
For help locating a service
person in your area call 0800
RINNAI (0800 746 624).
WARNING
IMPORTANT
1. Insulated TPR on the top of a cylinder. The lever
arm (easing gear) will be in the down position.
TPR will be connected to a drain line (not shown
in this photo).
2. Operate the easing gear by gently lifting until
water flows from the drain line, lower gently.
12

8 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Troubleshooting
Do not attempt to carry out any work other than that mentioned in this
troubleshooting section. If you have any other faults or problems, please contact
your installer, or contact Rinnai.
Problem Recommended action
Error code is
flashing on the
controller
Error codes are indicated by the maintenance logo, a flashing
background light, and the error code number.
Take a note of the error code and phone Rinnai Customer Services
(0800 746 624) for advice on whether a plumber or electrician is
required.
No display on the
controller, but
power is on and
you have hot water
Call Rinnai Customer Services (0800 746 624).
Keys are not
working
Check if the child lock is set. Unlock by pressing the mode and -
buttons at the same time for more than three seconds.
I have cold
water while in iQ
automatic mode
A sudden significant increase of hot water consumption may
generate occasional cold water. Change to manual mode and select
the desired temperature level and then go back to iQ mode.
If this occurs regularly, increase the level in iQ mode or occasionally
go into manual mode.
Lack of hot water
or no hot water
Is there electricity supply to the cylinder?
Check that the isolating switch marked ‘hot water’ or ‘water heater’,
at the meter box, is switched on. Also check any isolating switches
near the water heater are switched on.
Check the fuse or circuit breaker marked ‘hot water’ or ‘water
heater’ at the meter box. Repeated failure of the fuse or tripping of
the circuit breaker indicates a fault, which must be investigated by
an authorised tradesperson.
Most hot water cylinders are controlled at peak times by your
electricity supplier via a ripple relay. Contact your electricity supplier
to determine if there have been any issues with the power supply.

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 9
Problem Recommended action
Lack of hot water
or no hot water
Are you using more hot water than you think?
Often you don’t realise how much water is actually being used. This
applies especially when showering. Typical flow rates for showers is
approximately 8-10 litres per minute. Conduct a simple experiment
by placing a measured bucket under your shower for ten seconds
and multiply by six to determine the amount of water produced
over a minute. If your result is significantly more than the rates
mentioned you may want to consider installing a low flow shower
roseavailable at all good plumbing stores.
Lack of hot water
or no hot water
Cold water relief valve discharging continuously?
It is normal for the cold water relief valve to discharge a small
quantity of water through the drain line. If water is discharging
continuously there may be a fault with one of the valves, contact the
installer to discuss.
Water is too hot If possible check the temperature of the water coming out of a hot
water tap with a thermometer. If it is higher than 55 °C then this
indicates a problem with your systemcontact an electrician for
advice.
High electricity
bills
If you think your electricity bill is too high, investigate the following:
• Is your controller set correctly
• Has your electricity tariff changed?
• Is your cold water relief valve discharging continuously?
• Are you using more hot water than normal?
• Has there been any leaking hot water pipes, or taps?
Resetting the Smart Control (only do as a last resort)
Press and hold the + and - buttons at the same time for five seconds or more. Only do this as a
last resort. If you reset during normal operation it will lose all the water usage history as well as
the memory setting and will default back to the preset factory setting of iQ automatic mode,
level setting three.

This page intentionally left blank

Installation
Installation, servicing and repair
shall be carried out only by
authorised personnel.

12 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Specication summary
Incoloy 825 curved element
Suitability
• Residential indoor installations
• Mains and low pressure systems
• Left or right hand plumbing connections
Not suitable as a pool or spa heater, or for
connection to an open loop solar or hot water
heat pump system.
The system should be located and arranged so
as to achieve the closest proximity to water draw
off points. The cylinder also needs to be oriented
so that the control is in a position where the
homeowner can easily see and access it.
Operating pressures
Maximum working pressure = 850 kPa
Element
3 kW Incoloy 825 alloy sheath element positioned
at the bottom of the tank.
Thermostat
• 135 and 180 L
iTS12001 Cotherm iQuaFlex 14 A probe
thermostat. Bimetal safety cutout and manual
reset at 77 °C.
• 250 L
iTS12004 Cotherm iQuaFlex 14 A probe
thermostat. Bimetal safety cutout and manual
reset at 82 °C.
Protection against water: IPX1
Weights empty full
• 135 L: 42.5 kg 177.5 kg
• 180 L: 53.5 kg 233.5 kg
• 250 L: 81.5 kg 331.5 kg
Pressure limiting (reducing) valve
This water heater MUST be installed with a 500
kPa or less pressure limiting valve and appropriate
cold water expansion valve.
TPR valve
A TPR valve and insulation kit is supplied with the
water heater and MUST be fitted. The TPR valve
thread should be sealed with teflon tape, do not
use paste and hemp. Use the spanner flats on the
valve body to tighten, DO NOT use a wrench on
the valve body.
The TPR valve must be fitted with a drain pipe
installed in a continuous downward direction, and
in a frost-free environment. The drain pipe must
be installed to direct any water that may drip from
the pressure-relief device to a visible point outside
the propertythis pipe must be left open to the
atmosphere. The drain pipe must be at least the
same size as the TPR valve outlet (½˝BSP). Where
the drain pipe exceeds three metres in length it
is recommended an air break be provided within
300 mm of the TPR valve outlet. Where an air
break is used it is recommended that the pipe size
after the air break be increased to one size larger
than the TPR valve.
Cotherm thermostat with control

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 13
Tank size Cold inlet Element TPR Height Diameter
135 L 190 mm 306 mm 1070 mm 1295 mm Ø 488 mm
180 L 190 mm 306 mm 1440 mm 1695 mm Ø 488 mm
250 L 235 mm 335 mm N/A 1580 mm Ø 590 mm
Dimensions
Diameter
Anode Hot water outlet
Cold
Element
TPR
Height
Anode
¾ " female (all sizes)
Hot outlet (top of cylinder)
¾ " female (all sizes)
Cold inlet
¾ " female (all sizes)
TPR
½ " female (all sizes)
Please note: 250 L cylinder, the TPR
connection is on the top of the cylinder, refer
image below.
250 L additional connections
The 250 L cylinder has additional connections
for supplementary heat sources. These are not
applicable for Rinnai Smart Cylinders as they
are not suitable for connecting to open loop
solar or hot water heat pump systems.

14 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Cylinders should be installed in accordance with G12/AS1. For servicing and
maintenance, please allow sufficient room for access to covers and valves.
Plumbing setup
Plumbing setup for a mains pressure cylinder
Base requirements
Tanks should be installed on a flat level base of sufficient strength to support the weight of the
water heater when full.
The water heater must also be suitably restrained against seismic activity, ‘G12/AS1 Figure 14’
details an acceptable method of restraint.
Drip tray/catch pan (MUST be fitted)
The Rinnai warranty does not cover any consequential loss from leaks to the cylinder, so it’s
important a suitably drained drip tray/catch pan is fitted as per AS/NZS 3500.4:2015 5.4 and
G12/AS1 6.11.3.
Position of control
Make sure the control is in a position that is easily seen and accessible for the homeowner.
The appliance is not intended to be connected by a hose-set

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 15
Storage and delivery temperatures
Storage temperature: Biosafe operation
To meet the New Zealand Building Code requirement1to disinfect water for legionella bacteria,
the system will perform heating above 60 °C whenever risk conditions (<60 °C for 21 days) are
detected.
The access cover to the element and thermostat must only be removed by an electrician
or other suitably qualified tradesperson.
Sanitary fixtures delivery temperature
Water temperatures over 55 °C can cause severe scalds. Local regulations must be considered
regarding temperature limitations of hot water supplied to areas used primarily for personal
hygiene. The temperature is limited to 45 °C for early childhood centres, schools, nursing
homes or similar facilities and 55 °C for all other buildings. To comply with these requirements, a
temperature limiting device, such as a tempering or thermostatic mixing valve will be required
on all installations.
Pipe work
It is the installer’s responsibility to adequately size the distribution pipe work in a property to
ensure sufficient performance from all outlet fittings. Water pipe sizing should be performed
in accordance with AS/NZS 3500.4 and/or G12/AS1. Pipe sizing and valve selection must be
performed to allow for the water supply pressure.
A drain off tap or line must be fitted to the inlet of the water heater.
All hot water pipe work should be insulated with polythene foam or equivalent insulation to
optimise performance and energy efficiency.
To prevent damage to the water heater when attaching pipe clips or saddles to the jacket, it is
recommended that self drilling screws with a maximum length of 12 mm are used. If drilling is
required take extreme care not to penetrate the inner cylinder.
WARNING
1Clause G12.3.9, Acceptable Solution G12/AS1 6.14.3

16 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Water quality
Rinnai cylinders are manufactured to suit most NZ council water supplies.
However some water supplies can have a detrimental effect on the water
heater, its operation, and life expectancy.
Hard water
Hard water (containing calcium carbonate) can cause scaling on hot surfaces.
We recommend a water temperature of no more than 65 °C to minimise scale build-up. Scale
reducing or water softening devices should be considered in hard water areas. The unit is not
guaranteed against damage due to scaling.
Water quality outside the limits (as set down below) will void this warranty. Water quality tests
must be carried out at the customer's own cost but Rinnai will reimburse any reasonable test
costs where water quality is within the limits tabled.
Pitting corrosion
Pitting corrosion may occur in the form of deposit attack if the water supply has a high
percentage of dissolved solids present. It is advised in areas with a high concentration of
dissolved solids in the water supply that consultation with water quality and filtration experts be
undertaken.
Water quality and impurity limits
TDS (Total Dissolved Solids) Total Hardness CaCO3Dissolved (free) CO2pH Langelier Index
Up to 600 mg/L or ppm Up to 200 mg/L or ppm Up to 25 mg/L or ppm 6.5-8.5 Between -1.0-0.8
Most metropolitan water supplies fall within these limits. If you are unsure about water quality,
please contact Rinnai and we will provide you with the details of an authorised agency able to
test your water for compliance to Rinnai standards. If sludge or foreign matter is present in the
water supply, a suitable filter should be incorporated in the water supply.
Some examples of water quality issues where water may need to be treated:
• Hard water (areas including Wanganui)
• Aggressive water (areas including Christchurch)
• Both hard and aggressive water (some bore water)

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 17
Electrical supply and connections
The electrical connection must be carried out by a qualified person in accordance
with NZ Electrical Regulations. The water heater must have the heating element
connected to an independent, fused, AC 230 V 50 Hz power supply with an isolating
switch installed at the switch board. Disconnect all power prior to installation and
commissioning.
• The water heater must be filled with water prior to connection to the power supply
• Household wiring to the heater must be capable of withstanding the appliance load
• Fixed wiring must be protected from contact with the internal hot surface of the water
heater
Electrical access is via a hole in the element cover for mounting with an approved electrical
conduit gland. For entry to the element cover remove the two fixing screws.
Connect all Live, Neutral and Earth wires in accordance with the wiring diagram. Inspect and
ensure all wiring links are secure prior to fixing the access cover and turning the power on.
To ensure the over-temperature and energy cutout is set press the ‘reset’ button on the
thermostat.
The appliance is intended to be connected to cables of fixed wiring which has a cross-sectional
area of 1.5 mm2 - 2.5 mm2.
A N
Element
Thermostat
Terminal Block
brown
blue
green/yellow green/yellow

18 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Valves and ttings
Valves with pressure ratings other than those listed in this manual must not be used.
Fittings supplied with the cylinder
Brass plugs, to plug unused connections, a key spanner, and the owner
and installer guide are packaged in a plastic bag inside the element
cover.
The TPR valve, valve insulation kit and instructions are supplied in a clear
plastic bag fixed to the element cover as shown. The valve insulation kit
is provided to reduce heat loss from the TPR and must be fitted.
Commissioning
Commissioning and draining activities must be carried out by an authorised person.
To fill and turn on the water heater
1. Open all hot water taps in the house including the shower.
2. Open the cold water isolation valve to the water heater. Air will now be forced out of the taps.
3. Close each tap when the water runs freely without air bubbles.
4. Check all plumbing connections and pipe work for water leaks.
5. Switch on the electric power supply.
To turn off the water heater
It may be necessary to turn off a water heater after installation and commissioning, for example
during building activities or if the premises are vacant.
1. Switch off the electricity supply at the isolating switch to the water heater.
2. Close the cold water isolation valve at the inlet to the water heater.
To drain the water heater
1. Turn off the water heater as above.
2. Close all the hot water taps.
3. Gently operate the TPR valve release, this will relieve the pressure in the water heater.
4. Open the drain valvemake sure no damage will occur from discharged water.
5. Operate the TPR valve again. This allows air into the water heater and will result in the water
draining.

Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17 | 19
7 Year Limited Warranty
This warranty applies to Rinnai Mains Pressure Enamel Indoor Smart cylinders only. All terms of the
warranty, subject to the conditions below, are effective from the date of installation. Proof of installation
date will be required. Where the date of installation is not known or cannot be proven the warranty will
commence one month after the date of manufacture—refer to the data label on the cylinder.
Residential application
Cylinder only 7 years
Labour 5 years
All other parts supplied by Rinnai (thermostats, elements, seals, etc) Parts 1 year
Labour 1 year
Single residential application warranty
A residential application is defined as an installation where the water heater, with the thermostat set
below 70 °C, delivers hot water to a single family residential dwelling, not used for commercial purposes.
Examples where a residential dwelling is used for commercial purposes; hair salon, catering kitchen,
communal care facility etc. These installations would be considered commercial applications. An
exception would be an accommodation business such as a motel, where the water heater serves the
equivalent of a single family dwelling, this would be a residential application.
General warranty terms
Rinnai reserves the right to make modifications and change specifications and its parts without notice.
For the purposes of the Consumer Guarantees Act 1993, Rinnai only guarantees the availability of repair
facilities and spare parts for the express warranty periods recorded in the Rinnai warranty summary
table.
If the cylinder is being acquired for personal, domestic or household use, this warranty does not limit
any consumer rights or guarantees that may apply under the Consumer Guarantees Act 1993. If the
product is being acquired for the purposes of a business, the provisions of the Consumer Guarantees Act
1993 do not apply and no other warranties (either express or implied by law) apart from those stated in
this warranty apply.
Warranty terms and conditions
1. All terms of this warranty are effective from the date of installation. The attending service person
reserves the right to verify this date.
2. All Rinnai cylinders must be installed, commissioned, serviced, repaired and removed in accordance
with the manufacturer’s installation instructions, local regulations, and municipal building codes by
persons authorised to do so.
3. All Rinnai cylinders must be operated and maintained in accordance with manufacturer’s
instructions.
Rinnai warranty summary table
Rinnai Mains Pressure Enamel Indoor Smart Cylinders

20 | Rinnai Smart Cylinders MP indoor enamel: Owner & installer guide: 20431-D 04-17
Warranty terms and conditions continued
4. The warranty applies only to the components supplied by Rinnai. It does not apply to components
supplied by others, such as, but not limited to these, isolating valves, electrical switches, pipe work,
electrical cables, and fuses.
5. Where the cylinder has not been sited in accordance with the installation instructions or installed
such that normal service access is difficult, a service charge will apply. If at the discretion of the
attending service person the installation is deemed illegal or access is dangerous, service will be
refused. Any work required to gain reasonable access to the cylinder will be chargeable by the
attending service person (for example, removal of cupboards, doors, walls, or the use of special
equipment to move components, but not limited to these).
6. The cylinder warranty is for the period indicated in the summary table. Where the cylinder
and/or part is replaced under warranty the balance of the original warranty will remain effective.
7. Rinnai reserve the right to transfer functional components from defective water heaters if they are
suitable.
8. Rinnai reserve the right to have the installed product returned to the factory for inspection.
9. Where the cylinder is installed outside the metropolitan area or further than 40 km from a Rinnai
authorised service centre, travel costs shall be the owner’s responsibility.
10. Rinnai reserves the right to replace the cylinder for another type if upon inspection it is deemed
another cylinder of a different construction is more suitable.
Warranty exclusions
The following exclusions may cause the warranty to become void and will result in a service charge and
costs of parts (if required).
1. Accidental damage and acts of God.
2. Failure due to abuse or misuse, improper maintenance or improper storage.
3. Failure due to incorrect or unauthorised installations.
4. Failure or damage caused by alterations, service or repair work carried out by persons other than
those authorised by Rinnai.
5. Where the cylinder has failed directly or indirectly as a result of poor water quality outside the limits
specified.
6. Where it is found that there is no fault with the cylinder and the issue is related to the installation or is
due to power failure.
7. Subject to any statutory provisions to the contrary, Rinnai does not accept:
a. liability for consequential damage or any incidental expenses resulting from any breach of the
warranty.
b. claims for damage to building or any other consequential loss either directly or indirectly due to
leaks or any other faults.
TDS (Total Dissolved Solids) Total Hardness CaCO3Dissolved (free) CO2pH Langelier Index
Up to 600 mg/L or ppm Up to 200 mg/L or ppm Up to 25 mg/L or ppm 6.5-8.5 Between -1.0-0.8