Owner’s Guide
and
Installation Instructions
Electric Domestic
Water Heater
This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
This water heater may be protected by one or more patents or registered designs
in the name of Rheem Australia Pty Ltd.
® Registered trademark of Rheem Australia Pty Ltd.
TM Trademark of Rheem Australia Pty Ltd.
Note: Every care has been taken to ensure the accuracy in preparation of this
publication. No liability can be accepted for any consequences,
which may arise as a result of its application.
PATENTS
TRADEMARKS
CONTENTS
HOUSEHOLDER - We recommend you read pages 4 to 20.
The other pages are intended for the installer
but may be of interest
About Your Water Heater ............................................................ 4
Regular Care .............................................................................. 10
Water Supplies ........................................................................... 14
Save A Service Call ................................................................... 18
Installation .................................................................................. 21
Connections – Plumbing .......................................................... 32
Connections – Electrical ........................................................... 37
Commissioning .......................................................................... 40
Draining The Water Heater ....................................................... 43
Warranty ..................................................................................... 45
3
maximum thermostat setting
045, 050 models
minimum thermostat setting
and minimum recommended
stored water temperature.
top heating unit thermostat
setting on a twin element
model (not adjustable)
maximum thermostat setting
Rheemglas and RheemPlus
(025, 080 to 400 models)
RheemPlus maximum delivery
temperature.
maximum recommended
supply temperature to
bathrooms and ensuites
ABOUT YOUR WATER HEATER
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for
the purpose of heating potable water. Its use in an application other than this
may shorten its life.
MODEL TYPE
The Rheem® water heater you have chosen will be either a Rheemglas® or
RheemPlus™ model.
Rheemglas models are available with either a single heating unit or with twin
heating units and the RheemPlus models are available with a single heating
unit only (refer to “Single Element Model” on page 7 and “Twin Element Model”
on page 7). A water heater with a supply cord and plug is suitable for indoor
installation only. All other water heaters can be installed indoor or outdoor.
Water is stored in a vitreous enamel lined steel cylinder and heated by the
electric immersion heating unit. The thermostat controls the temperature.
Automatic safety controls are fitted to the water heater to provide safe and
efficient operation.
Depending on the model of water heater, it may have caps or brass plugs on
one side of the tank. The plugs and caps block off alternative connection points
and are not to be tampered with or removed.
HOW HOT SHOULD THE WATER BE?
The water heater features an
adjustable thermostat, which allows
you to choose the most suitable
temperature for your hot water needs.
Refer to “Temperature Adjustment” on
page 5.
A RheemPlus water heater is
temperature limited to deliver water not
exceeding 50°C.
To meet the requirements of the
National Plumbing Standard the
temperature of the stored water must
not be below 60°C.
4
ABOUT YOUR WATER HEATER
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
This water heater can deliver water at temperatures which can cause scalding.
Check the water temperature before use, such as when entering a shower or
filling a bath or basin, to ensure it is suitable for the application and will not
cause scald injury.
We recommend and it may also be required by regulations that an approved
temperature limiting device be fitted into the hot water pipe work to the
bathroom and ensuite when a Rheemglas water heater is installed. This will
keep the water temperature below 50°C at the bathroom and ensuite. The risk
of scald injury will be reduced and still allow hotter water to the kitchen and
laundry.
A RheemPlus water heater will not deliver temperatures exceeding 50°C, in
accordance with AS 3498. There is no statutory requirement to fit a
temperature limiting device if this water heater is installed in other than an early
childhood centre, school, nursing home or a facility for young, aged, sick or
disabled people.
THERMOSTAT
The thermostat automatically controls the electricity supply to the heating unit
so a constant temperature is maintained. The thermostat and its protective over
temperature cut out is mounted inside the front cover of the water heater. There
is no need to switch the water heater off when it is not in use, except when you
are on an extended holiday. The thermostat is fully automatic and power is only
used when heating is required.
TEMPERATURE ADJUSTMENT
A Rheemglas or RheemPlus water heater features a tradesperson adjustable
thermostat. This requires a licensed tradesperson to make any temperature
adjustments. The thermostat has a maximum temperature setting of 70°C
(75°C for 045, 050 models) and a minimum temperature setting is 60°C.
We advise you have your electrician adjust the thermostat to the lowest
temperature setting that meets your needs, especially if there are young
children or elderly people in your home. Refer to “Hotter Water Increases The
Risk of Scald Injury” on page 5.
A RheemPlus water heater is temperature limited to 50°C at the hot water
outlet. The minimum thermostat setting should be 65°C to assist in the
specified operation of the temperature limiting valve. Increasing the thermostat
setting will not increase the outlet temperature but will provide more hot water
capacity.
5
ABOUT YOUR WATER HEATER
WARNING
This water heater is only intended to be operated by persons who have the
experience or the knowledge and the capabilities to do so. This water heater is
not intended to be operated by persons with reduced physical, sensory or
mental capabilities i.e. the infirm, or by children. Children should be supervised
to ensure they do not interfere with the water heater.
This water heater uses 240 V AC power for the electrically operated
components. The removal of the front cover(s) will expose 240 V wiring. It must
only be removed by a qualified person.
Take care not to touch the power plug on a water heater fitted with a power
supply cord and plug with wet hands.
SAFETY
This water heater is supplied with a thermostat, an over-temperature cut-out,
and a combination temperature pressure relief valve. In addition, a RheemPlus
water heater has a temperature limiting valve. These devices must not be
tampered with or removed. The water heater must not be operated unless each
of these devices is fitted and is in working order.
The operation of the over-temperature cut-out on the thermostat indicates a
possibly dangerous situation. If the over-temperature cut-out operates, it must
not be reset and the water heater must be serviced by a qualified person.
If the power supply cord, plug or electrical conduit to the water heater is
damaged, it must be replaced by a qualified person in order to avoid a hazard.
The power supply cord and plug must be replaced with a genuine replacement
part available from Rheem. Phone Rheem Service or their nearest Accredited
Service Agent to arrange for an inspection.
Warning: For continued safety of this water heater it must be installed,
operated and maintained in accordance with the Owner‟s Guide and Installation
Instructions.
The Rheem warranty may not cover faults if relief valves or other safety
devices are tampered with or if the installation is not in accordance with
these instructions.
6
ABOUT YOUR WATER HEATER
SINGLE ELEMENT MODEL
This type of water heater has one heating
unit with its own thermostat. The heating
unit is at the base of the water heater.
Continuous electricity supply
This type of connection is suited to
where the storage capacity is less than
the normal daily usage.
Off-Peak electricity supply
This type of connection will only allow
heating to occur during set hours. A
volume of water sufficient for the day‟s
total use is heated and stored. This type
of heating will be more economical due
to reduced tariffs by the electricity
authority.
TWIN ELEMENT MODEL
This type of water heater has two heating units, each with its own thermostat.
One heating unit is at the base of the water heater and the other near the top.
Bottom heating unit
During normal operation this heating
unit supplies all the hot water.
Top heating unit (Booster)
This heating unit only operates during
periods of high demand to provide an
additional supply of heated water.
Electrical connection
The two heating units are wired for nonsimultaneous operation, so that only
one heating unit can operate at a time.
The bottom heating unit is usually
connected to an Off-Peak (overnight) or
time controlled electricity supply and the
top heating unit to a continuous supply.
Some electricity suppliers allow both
heating units to be metered at the OffPeak or controlled tariff.
NOTE: Power must be available to the top heating unit circuit at all times
for this water heater to operate as designed.
7
ABOUT YOUR WATER HEATER
MAINS PRESSURE
The water heater is designed to operate at mains pressure by connecting
directly to the mains water supply. If the mains supply pressure in your area
exceeds that shown on page 23, a pressure limiting valve must be fitted. The
supply pressure should be greater than 350 kPa for true mains pressure
operation to be achieved.
PRECAUTIONS
Where damage to property can occur in the event of the water heater leaking,
the water heater must be installed in a safe tray. Construction, installation and
draining of a safe tray must comply with AS/NZS 3500.4 and all local codes
and regulatory authority requirements.
The water heater must be maintained in accordance with the Owner‟s Guide
and Installation Instructions. Refer to “Regular Care” on page 10 and to “Anode
Inspection and Replacement” on page 15.
If this water heater is to be used where an uninterrupted hot water supply is
necessary for your application or business you should ensure that you have
back up redundancy within the hot water system design. This should ensure
the continuity of hot water supply in the event that this water heater were to
become inoperable for any reason. We recommend you seek advice from your
plumber or specifier about your needs and building back up redundancy into
your hot water supply system.
TO TURN OFF THE WATER HEATER
If you plan to be away from home for only a few nights, we suggest you leave
the water heater switched on.
If it is necessary to turn off the water heater:
Switch off the electrical supply at the isolating switch to the water heater.
Unplug the power supply cord from the power outlet (power supply cord
model only).
Close the cold water isolation valve at the inlet to the water heater.
TO TURN ON THE WATER HEATER
Open the cold water isolation valve fully on the cold water line to the water
heater.
Plug in the power supply cord at the power outlet (power supply cord model
only).
Switch on the electrical supply at the isolating switch to the water heater.
8
ABOUT YOUR WATER HEATER
GOING ON HOLIDAY?
If you plan to be away from home for one or two nights, we suggest you leave
the water heater switched on. However, if you plan to stay away more than a
few nights, conserve energy by switching the water heater off at either the
switchboard or isolating switch.
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
Installation requirements are shown on pages 21 to 28. The water heater must
be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local
codes and regulatory authority requirements.
In New Zealand the installation must also conform with the New Zealand
Building Code.
VICTORIAN CUSTOMERS
Notice to Victorian Customers from the Victorian Plumbing Industry
Commission. This water heater must be installed by a licensed person as
required by the Victorian Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that the
work complies with all the relevant Standards. Only a licensed person will have
insurance protecting their workmanship for 6 years. Make sure you use a
licensed person to install this water heater and ask for your Compliance
Certificate.
DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?
The water heater is suitable for most public water supplies, however some
water chemistries may have detrimental effects on the water heater, its
components and fittings. Refer to “Water Supplies” on page 14.
If you are in a known harsh water area or you are not sure of your water
chemistry, have your water checked against the conditions described on
pages 14 to 17.
HOW LONG WILL THE WATER HEATER LAST?
The water heater is supported by a manufacturer‟s warranty (refer to page 45).
There are a number of factors that will affect the length of service the water
heater will provide. These include but are not limited to the water chemistry, the
water pressure, the water temperature (inlet and outlet) and the water usage
pattern. Refer to “Precautions” on page 8.
9
REGULAR CARE
MAJOR FIVE YEAR SERVICE
It is recommended a major five year service be conducted on the water heater.
Warning: Servicing of a water heater must only be carried out by qualified
personnel. Phone Rheem Service or their nearest Accredited Service Agent.
Note: The five year service and routine replacement of any components, such
as the anode and relief valve(s), are not included in the Rheem warranty. A
charge will be made for this work. Only genuine replacement parts should be
used on this water heater.
The major service includes the following actions:
Replace the temperature limiting valve (RheemPlus model).
Replace the temperature pressure relief valve.
Inspect and flush the expansion control valve (if fitted). If required, replace
the valve.
Inspect and if required, replace the anode.
If the anode is not replaced, it should be replaced within three years of this
service (refer to “Anode Inspection and Replacement” on page 15).
Check the electric heating unit for excessive calcium build up or corrosion
and replace if necessary.
Visually check the unit for any potential problems.
Inspect all connections.
Check the drain line from the safe tray (if one is installed) is not blocked.
Note: The water heater may need to be drained during this service. After the
completion of the service, the water heater will take some time to reheat the
water. Depending upon the power supply connection, hot water may not be
available until the next day.
10
REGULAR CARE
MINOR SIX MONTH MAINTENANCE
It is recommended minor maintenance be performed every six months by the
dwelling occupant.
The minor maintenance includes:
Operate the easing lever on the temperature pressure relief valve. It is very
important you raise and lower the lever gently. Refer to “Temperature
Pressure Relief Valve” on page 12.
Warning: Exercise care to avoid any splashing of water, as water
discharged from the drain line will be hot. Stand clear of the drain line‟s
point of discharge when operating the valve‟s lever.
Operate the easing lever on the expansion control valve (if fitted). It is very
important you raise and lower the lever gently. Refer to “Expansion Control
Valve” on page 11.
Check the performance of the temperature limiting valve (RheemPlus
model).
Measure the water temperature from the hot tap nearest to the water heater
with a thermometer. If the water temperature exceeds 50°C, phone Rheem
Service or their nearest Accredited Service Agent to arrange for an
inspection. Refer to “Temperature Limiting Valve” on page 13.
Check the drain line from the safe tray (if one is installed) is not blocked.
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and scaling water
areas, an expansion control valve is fitted to the cold water line to the water
heater. The expansion control valve may discharge a small quantity of water
from its drain line during the heating period instead of the temperature pressure
relief valve on the water heater.
Operate the easing lever on the expansion control valve once every six
months. It is very important you raise and lower the lever gently. The
expansion control valve should be checked for performance or replaced at
intervals not exceeding 5 years, or more frequently in areas where there is a
high incidence of water deposits.
11
REGULAR CARE
water
heater
drain
line
lift until water
flows from the
drain line –
lower gently
TEMPERATURE PRESSURE RELIEF VALVE
This valve is near the top of the water
heater and is essential for its safe
operation. It is possible for the valve to
release a little water through the drain line
during each heating period. This occurs as
the water is heated and expands by
approximately 1/50 of its volume.
Continuous leakage of water from the valve
and its drain line may indicate a problem
with the water heater (refer to
“Temperature Pressure Relief Valve
Running” on page 19).
Warning: Never block the outlet of this
valve or its drain line for any reason.
Operate the easing lever on the
temperature pressure relief valve once
every six months. It is very important you
raise and lower the lever gently.
DANGER: Failure to do this may result
in the water heater cylinder failing, or under
certain circumstances, exploding.
Warning: Exercise care to avoid any
splashing of water, as water discharged
from the drain line will be hot. Stand clear
of the drain line‟s point of discharge when
operating the valve‟s lever.
If water does not flow freely from the drain line when the lever is lifted, then the
water heater must be checked. Phone Rheem Service or their nearest
Accredited Service Agent to arrange for an inspection.
The temperature pressure relief valve should be replaced at intervals not
exceeding 5 years, or more frequently in areas where there is a high incidence
of water deposits (refer to “Water Supplies” on page 14).
12
REGULAR CARE
TEMPERATURE LIMITING VALVE
A RheemPlus water heater is fitted with a temperature limiting valve at the hot
water outlet. The valve is set to deliver water not exceeding 50°C.
The valve should be checked for performance every twelve months. This can
be performed by measuring the water temperature from the hot tap nearest to
the water heater with a thermometer. If the water being delivered is at a
temperature exceeding 50°C, phone Rheem Service or their nearest Accredited
Service Agent to arrange for an inspection.
The valve must be replaced at intervals not exceeding 5 years, or more
frequently in areas where there is a high incidence of water deposits (refer to
“Water Supplies” on page 14). Failure to do this may result in water at a
temperature up to 70°C being delivered at the hot tap, increasing the risk of
scald injury.
13
Total Dissolved Solids
Anode colour code
0 – 40 mg/L
Green
40 – 150 mg/L
Green or Black
150 – 400 mg/L
Black
400 – 600 mg/L
Black or Blue
600 – 2500 mg/L
Blue
2500 mg/L +
Blue (no cylinder warranty)
WATER SUPPLIES
This water heater must be installed in accordance with this advice to be
covered by the Rheem warranty.
This water heater is manufactured to suit the water conditions of most public
reticulated water supplies. However, there are some known water chemistries
which can have detrimental effects on the water heater and its operation
and / or life expectancy. If you are unsure of your water chemistry, you may be
able to obtain information from your local water supply authority. This water
heater should only be connected to a water supply which complies with these
guidelines for the Rheem warranty to apply.
ANODE
The vitreous enamel lined cylinder of the water heater is only covered by the
Rheem warranty when the total dissolved solids (TDS) content in the water is
less than 2500 mg/L and when the correct colour coded anode is used. If an
incorrect colour coded anode is used in the water heater, any resultant faults
will not be covered by the Rheem warranty. In addition, the use of an incorrect
colour coded anode may shorten the life of the water heater cylinder.
The correct colour coded anode must be selected and fitted to the water heater
in accordance with the following advice and the Anode Selection chart on
page 15 for the Rheem warranty to apply to the water heater cylinder.
The changing of an anode must be carried out by a qualified person.
Note: Some water analysis reports may state the conductivity of the water
rather than the level of total dissolved solids. Conductivity, measured in
microsiemens per centimetre (µS / cm), is directly proportional to the TDS
content of the water. TDS, in mg / L, is approximately 70% of the conductivity in
µS / cm.
14
WATER SUPPLIES
CONDUCTIVITY - µS/cm
TOTAL DISSOLVED SOLIDS & CONDUCTIVITY
(vitreous enamel lined water heater cylinder)
40 150 400 600
TOTAL DISSOLVED SOLIDS (TDS) - mg/L
ANODE SELECTION
warranty applies to a vitreous enamel lined water heater cylinder if the
correct coloured anode is used for the TDS / conductivity level of water
2500
3570
no warranty
applies
to a vitreous
enamel lined
water heater
cylinder
Blue
Black
Green
60 215 570 860
0
0
Blue
ANODE INSPECTION AND REPLACEMENT
The anode installed in your water heater will slowly dissipate whilst protecting
the cylinder. The life of the cylinder may be extended by replacing the anode.
If the anode is not replaced during a five year service (refer to “Major Five Year
Service” on page 10) then the maximum time after installation when the anode
should be replaced for this electric water heater is 8 years.
For water supplies which are either softened, desalinated or where the water
supply may alternate between a water tank and a reticulated public supply or
another supply, it is recommended the anode be replaced within 5 years of
installation.
CAUTION
If the water supply has a TDS greater than 150 mg/L and a green anode has
not been changed to a black anode, or if the TDS is greater than 600 mg/L and
the anode has not been changed to a blue anode, there is the possibility the
anode may become overactive and hydrogen gas could accumulate in the top
of the water heater during long periods of no use.
If, under these conditions, the water heater has not been used for two or more
weeks the following procedure should be carried out before using any electrical
appliances (automatic washing machines and dishwashers) which are
connected to the hot water supply.
The hydrogen, which is highly flammable, should be vented safely by opening a
hot tap and allowing the water to flow. There should be no smoking or naked
flame near the tap whilst it is turned on. Any hydrogen gas will be dissipated.
This is indicated by an unusual spurting of the water from the tap. Once the
water runs freely, any hydrogen in the system will have been released.
15
WATER SUPPLIES
+0.4 +0.80
very corrosive very scaling
scaling
corrosive
-1.0
no warranty applies to a:
temperature pressure relief valve or a
water heater cylinder unless an
expansion control valve is fitted.
no warranty applies to a:
-copper sheathed heating unit
SATURATION INDEX (SI)
ELECTRIC WATER HEATERS
WITHIN WARRANTY
SPECIFICATION
SATURATION INDEX
(calculated @ 80°C water temperature)
no warranty applies to a:
-standard watts density heating unit
SATURATION INDEX
The saturation index is used as a measure of the water‟s corrosive or scaling
properties.
In a corrosive water supply, the water can attack copper parts and cause them
to fail. Where the saturation index is less than –1.0, the water is very corrosive
and the Rheem warranty does not apply to a copper sheathed heating unit. A
corrosion resistant heating unit must be used for the Rheem warranty to apply
to the heating unit.
In a scaling water supply calcium carbonate is deposited out of the water onto
any hot metallic surface. Where the saturation index exceeds +0.40, the water
is very scaling. An expansion control valve must be fitted on the cold water line
after the non-return valve to protect and for the Rheem warranty to apply to the
temperature pressure relief valve and water heater cylinder.
Where the saturation index exceeds +0.80, the Rheem warranty does not apply
to a standard watts density heating unit. A low watts density heating unit must
be used for the Rheem warranty to apply to the heating unit.
Water which is scaling may be treated with a water softening device to reduce
the saturation index of the water.
Refer to the Saturation Index chart on page 16. Refer to the cold water
connection detail on page 32 for the position of the expansion control valve.
Contact Rheem Service or their nearest Accredited Service Agent if a
replacement heating unit is required.
16
WATER SUPPLIES
Water Chemistry
Component
Total Dissolved Solids (TDS) > 2500 mg/L
water heater cylinder
Total Dissolved Solids (TDS)
not suitable for anode type
water heater cylinder
Saturation Index (SI) < -1.0
copper sheathed heating unit
Saturation Index (SI) > +0.4
(if expansion control valve is not fitted)
water heater cylinder
temperature pressure relief valve
Saturation Index (SI) > +0.8
standard watts density heating unit
CHANGE OF WATER SUPPLY
The changing or alternating from one water supply to another can have a
detrimental effect on the operation and / or life expectation of a water heater
cylinder, a temperature pressure relief valve and a heating unit.
Where there is a changeover from one water supply to another, e.g. a rainwater
tank supply, bore water supply, desalinated water supply, public reticulated
water supply or water brought in from another supply, then water chemistry
information should be sought from the supplier or it should be tested to ensure
the water supply meets the requirements given in these guidelines for the
Rheem warranty to apply.
SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY
The water heater and its components are not suitable for certain water
chemistries. Those chemistries are listed below. If the water heater is
connected at any time to a water supply with the following water chemistry, the
Rheem warranty will not cover any resultant faults on the components listed
below:
17
SAVE A SERVICE CALL
Check the items below before making a service call. You will be charged for
attending to any condition or fault that is not related to the manufacture or
failure of a part.
NOT ENOUGH HOT WATER (OR NO HOT WATER)
Is the electricity switched on?
Inspect the isolating switch marked “HOT
WATER” or “WATER HEATER” at the
switchboard and the isolating switch (if one
is installed) near the water heater and
ensure they are turned on.
Note: Check the electricity supply to which
the water heater is connected. If on an OffPeak or time controlled electricity supply,
remember heating hours are restricted
(refer to “Off-Peak Electricity Supply” on
page 7).
Check the fuse marked “HOT WATER” or “WATER HEATER” at the
switchboard.
Twin element water heaters
A twin element non-simultaneous model must have power available to the
top heating unit circuit at all times for the water heater to operate as
designed.
Are you using more hot water than you think?
Is one outlet (especially the shower) using more hot water than you think?
Very often it is not realised the amount of hot water used, particularly when
showering. Carefully review the family‟s hot water usage. Have your
plumber fit a flow control valve to each shower outlet to reduce water usage.
Temperature pressure relief valve running
Is the relief valve discharging too much water? (Refer to “Temperature
Pressure Relief Valve Running” on page 19).
Thermostat setting
Ensure the thermostat setting is appropriate. You may choose to have your
electrician (Rheemglas and RheemPlus models) adjust the thermostat
upwards to gain additional hot water capacity. Refer to “Temperature
Adjustment” on page 5.
Warning: Hotter water increases the risk of scald injury.
A RheemPlus water heater is temperature limited to 50°C at the hot water
outlet. Increasing the thermostat setting will not increase the outlet
temperature but will provide more hot water capacity.
18
SAVE A SERVICE CALL
Water heater size
Do you have the correct size water heater for your requirements? The sizing
guide in the Rheem sales literature and on the Rheem website
(www.rheem.com.au) suggests average sizes that may be needed.
WATER TEMPERATURE TOO HIGH
A RheemPlus water heater is fitted with a temperature limiting valve set to
deliver water not exceeding 50°C. If the water is being delivered at a
temperature exceeding 50°C, phone Rheem Service or their nearest Accredited
Service Agent to arrange for an inspection. Care must be taken by all
householders when using hot water until the valve is serviced or replaced.
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
It is normal and desirable that this valve
allows a small quantity of water to escape
during the heating cycle. However, if it
discharges more than a bucket full of water
in 24 hours, there may be another problem.
Continuous dribble
Try gently raising the easing lever on the
relief valve for a few seconds (refer to
“Temperature Pressure Relief Valve” on
page 12). This may dislodge a small particle
of foreign matter and clear the fault.
Release the lever gently.
Steady flows for long period (often at
night)
This may indicate the mains water pressure
sometimes rises above the designed
pressure of the water heater. Ask your
installing plumber to fit a pressure limiting
valve.
Warning: Never replace the relief valve with one of a higher pressure
rating.
Heavy flows of hot water until water heater is cold - then stops until
water reheats
The water heater must be switched off at the switchboard. Phone Rheem
Service or their nearest Accredited Service Agent to arrange for an
inspection.
19
SAVE A SERVICE CALL
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater
(refer to page 32) it may discharge a small quantity of water instead of the
temperature pressure relief valve on the water heater. The benefit is that
energy is conserved as the discharged water is cooler.
HIGHER THAN EXPECTED ELECTRICITY BILLS
Should you at any time, feel your electricity account is higher than expected,
we suggest you check the following points:
Is the relief valve running excessively?
Refer to “Temperature Pressure Relief
Valve Running” on page 19.
Is one outlet (especially the shower)
using more hot water than you think?
Refer to “Not Enough Hot Water” on
page 18.
Is there a leaking hot water pipe,
dripping hot water tap, etc?
Even a small leak will waste a
surprising quantity of hot water and
electricity. Replace faulty tap washers,
and have your plumber rectify any
leaking pipe work.
Has there been an increase in hot water usage?
An increase in hot water usage will result in an increase in water heater
operation.
Has your water heating tariff rate been increased by your electricity retailer
since your previous account?
ELECTRICITY TARIFFS
The electricity tariff to which your water heater is connected will determine the
overall operating cost of the system. It is important you are aware of this tariff,
i.e. Off-Peak (overnight) or time controlled supply, Extended Off-Peak
(overnight and day) or Extended time controlled supply, Domestic / Continuous.
For types of tariffs, refer to “Single Element Model” on page 7 and “Twin
Element Model” on page 7.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU
NEED ASSISTANCE, PHONE RHEEM SERVICE OR THEIR NEAREST
ACCREDITED SERVICE AGENT.
20
INSTALLATION
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING
INSTALLATION STANDARDS
The water heater must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local
codes and regulatory authority requirements.
In New Zealand the installation must also conform with the New Zealand
Building Code.
All packaging materials must be removed from the water heater prior to its
installation. This includes the removal of the cardboard base of the carton from
the underside of the water heater.
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for
the purpose of heating potable water. Its use in an application other than this
may shorten its life.
If this water heater is to be used where an uninterrupted hot water supply is
necessary for the application or business, then there should be redundancy
within the hot water system design. This should ensure the continuity of hot
water supply in the event that this water heater was to become inoperable for
any reason. We recommend you provide advice to the system owner about
their needs and building backup redundancy into the hot water supply system.
WATER HEATER LOCATION
The water heater is suitable for either indoor or outdoor installation. Whether
located outdoor or indoor, the water heater should be installed close to the
most frequently used outlet and its position chosen with safety and service in
mind.
Clearance must be allowed for servicing of the water heater. The water heater
must be accessible without the use of a ladder or scaffold.
Make sure the temperature pressure relief valve lever is accessible and the
front cover, thermostat, heating unit and if fitted, the side cover and
temperature limiting valve can be removed for service.
21
INSTALLATION
You must be able to read the
information on the rating plate. If
possible leave headroom of one water
heater height so the anode can be
inspected or replaced. Remember you
may have to take the entire water
heater out later for servicing.
The water heater is to be installed at
ground or floor level and must stand
vertically upright on a stable base as
acceptable to local authorities. The
base of the water heater is made of
corrosion resistant material, and it may
be placed directly in contact with the
supporting surface. It is not necessary
to allow for free air circulation under
the base of the water heater.
Note: The water heater should not be placed in direct contact with a concrete
surface that is less than two months old and not fully cured as this may attack
the metal coating of the water heater base. A moisture barrier should be used
between the two surfaces in this instance.
Alternatively, an 025 to 080 model may be hung on a wall capable of taking the
weight of the filled water heater. A bracket kit is available from Rheem. Refer to
the instructions supplied with the kit.
Remember all local authorities have regulations about putting water heaters
into roof spaces.
SAFE TRAY
Where damage to property can occur in the
event of the water heater leaking, the water
heater must be installed in a safe tray.
Construction, installation and draining of a
safe tray must comply with AS/NZS 3500.4
and all local codes and regulatory authority
requirements. AS/NZS 3500.4 also has
particular requirements when a safe tray must
be installed.
22
INSTALLATION
Model
Refer to data tables
on pages 29, 30, 31
Relief valve setting
1400 kPa
1000 kPa
Expansion control valve setting*
1200 kPa
850 kPa
Max. mains supply pressure
With expansion control valve
960 kPa
680 kPa
Without expansion control valve
1120 kPa
800 kPa
* Expansion control valve not supplied with water heater
MAINS WATER SUPPLY
Where the mains water supply pressure exceeds that shown in the table below,
an approved pressure limiting valve is required and should be fitted as shown
in the installation diagram (refer to diagram on page 32).
TANK WATER SUPPLY
If the water heater is supplied with water from a tank supply and a pressure
pump system is not installed, then the bottom of the supply tank must be at
least 1 m above the highest point of the hot water plumbing system, including
the water heater. Care must be taken to avoid air locks. The cold water line to
the water heater should be adequately sized and fitted with a full flow gate
valve or ball valve.
HOT WATER DELIVERY
This water heater can deliver water at temperatures which can cause scalding.
It is necessary and we recommend that a temperature limiting device be fitted
between a Rheemglas water heater and the hot water outlets in any ablution
area such as a bathroom or ensuite, to reduce the risk of scalding. The
installing plumber may have a legal obligation to ensure the installation of this
water heater meets the delivery water temperature requirements of
AS/NZS 3500.4 so that scalding water temperatures are not delivered to a
bathroom, ensuite or other ablution area.
Where a temperature limiting device is installed adjacent to the water heater,
the cold water line to the temperature limiting device can be branched off the
cold water line either before or after the isolation valve, pressure limiting valve
and non return valve to the water heater. If an expansion control valve is
required, it must always be installed after the non return valve and be the last
valve prior to the water heater.
23
INSTALLATION
If a pressure limiting valve is installed on the cold water line to the water heater
and the cold water line to a temperature limiting device branches off before this
valve or from another cold water line in the premises, then a pressure limiting
valve of an equal pressure setting may be required prior to the temperature
limiting device.
Two Temperature Zones Using a Temperature Limiting Device
A RheemPlus water heater will
not deliver temperatures
exceeding 50°C, in accordance
with AS 3498. There is no
statutory requirement to fit a
temperature limiting device if this
water heater is installed in other
than an early childhood centre,
school, nursing home or a facility
for young, aged, sick or disabled
people.
24
INSTALLATION
CIRCULATED HOT WATER FLOW AND RETURN SYSTEM
A RheemPlus water heater cannot be installed as part of a circulated hot water
flow and return system in a building.
If a Rheem water heater is to be installed as part of a circulated hot water flow
and return system, a storage water heater able to provide a hot water outlet
temperature of at least 60°C must be used. Note: The thermostat must always
be set to at least 60°C. Refer to the diagram on page 25.
Temperature Limiting Device
A temperature limiting device cannot be installed in circulated hot water flow
and return pipe work. The tempered water from a temperature limiting device
cannot be circulated. Where a circulated hot water flow and return system is
required in a building, a temperature limiting device can only be installed on a
dead leg, branching off the circulated hot water flow and return pipe.
If circulated tempered water were to be returned back to the water heater,
depending on the location of the return line connection on the water supply line
to the water heater, then either:
water will be supplied to the cold water inlet of the temperature limiting
device at a temperature exceeding the maximum recommended water
supply temperature, or
when the hot taps are closed no water will be supplied to the cold water inlet
of the temperature limiting device whilst hot water will continue to be
supplied to the hot water inlet of the temperature limiting device.
These conditions may result in either water at a temperature exceeding the
requirements of AS/NZS 3500.4 being delivered to the hot water outlets in the
ablution areas, or the device closing completely and not delivering water at all,
or the device failing. Under either condition, the operation and performance of
the device cannot be guaranteed.
Circulated Hot Water Flow and Return – Continuous Electric Water Heater
25
INSTALLATION
Off-Peak or Time Controlled Electricity Supply
A single or twin element electric water heater connected to an Off-Peak
electricity supply should not be installed as part of a circulated hot water flow
and return system in a building. The benefits of the Off-Peak electricity supply
will be significantly reduced.
If a circulated flow and return system is required, it is necessary to bypass the
Off-Peak electric water heater and install a secondary water heater connected
to the hot water flow and return line and supplied from the Off-Peak electric
water heater. Refer to the diagram on page 26.
Circulated Hot Water Flow and Return System
Off-Peak Electric Water Heater
REDUCING HEAT LOSSES
The cold water line to and the hot water line from the water heater must be
insulated in accordance with the requirements of AS/NZS 3500.4. The
insulation must be weatherproof and UV resistant if exposed.
PUSH THROUGH (FREE OUTLET) INSTALLATION
It can be advantageous to plumb
the water heater as a Push Through
water heater in some cases. These
installations can supply a single
point only and normally an 025,
045 or 050 model electric water
heater. The temperature pressure
relief valve supplied with this model
must be fitted to the water heater.
26
INSTALLATION
Total Dissolved Solids
Anode colour code
0 – 40 mg/L
Green
40 – 150 mg/L
Green or Black
150 – 400 mg/L
Black
400 – 600 mg/L
Black or Blue
600 – 2500 mg/L
Blue
2500 mg/L +
Blue (no cylinder warranty)
ANODE
The vitreous enamel lined cylinder of the water heater is only covered by the
Rheem warranty when the total dissolved solids (TDS) content in the water is
less than 2500 mg/L and when the correct colour coded anode is used. If an
incorrect colour coded anode is used in the water heater, any resultant faults
will not be covered by the Rheem warranty. In addition, the use of an incorrect
colour coded anode may shorten the life of the water heater cylinder.
The correct colour coded anode for the water supply being used must be
selected and fitted to the water heater for the Rheem warranty to apply to the
water heater cylinder (refer to “Water Supplies” on page 14 and the Anode
Selection chart on page 15). The black anode is typically fitted as standard.
If the water supply has a TDS greater than 150 mg/L and a green anode has
not been changed to a black anode, or if the TDS is greater than 600 mg/L and
the anode has not been changed to a blue anode, there is the possibility the
anode may become overactive and hydrogen gas could accumulate in the top
of the water heater during long periods of no use. In areas where this is likely to
occur, the installer should instruct the householder on how to dissipate the gas
safely (refer to “Caution” on page 15).
SADDLING PIPE WORK
To prevent damage to the cylinder when attaching pipe clips or saddles to the
water heater jacket, we recommend the use of self drilling screws with a
maximum length of 13 mm. Should pre drilling be required, extreme caution
must be observed when penetrating the jacket of the water heater.
Note: If the cylinder is damaged as a result of attaching pipe clips or
saddles to the jacket, any resultant faults will not be covered by the
Rheem warranty.
27
INSTALLATION
OUTDOOR LOCATIONS
TYPICAL INSTALLATION – OUTDOOR LOCATION
TYPICAL INSTALLATION – INDOOR LOCATION
28
INSTALLATION
Rheemglas Single Element
Rheemglas Single Element
LH
DH
111025 - -
191045
-
191050
-
191080
-
191125
Hot Water Delivery
Litres
18
40
50
80
125
Dimensions A
mm
390
668
695
945
1340
B
mm
385
393
400
480
480
C
mm
420
429
436
515
515
D
mm
130
346
397
702
1102
E
mm
116
142
142
64
64
F
mm
75
80
80
66
66
H
deg
26
26
26
24
24
J
deg
65
59
59
60
60
TPR Valve Setting
kPa
1400
1400
1400
1400
1400
Approx. Weight empty
kg
18
22
29
36
49
DIMENSIONS AND TECHNICAL DATA – RHEEMGLAS 025 TO 125 MODELS
All models are suitable for indoor or outdoor installation, including 025, 045, 050 models
having a „/P‟ suffix and supplied with a power supply cord and plug.
111 series models have left hand (LH) water and TPR valve connections only.
191 series 045 to 125 models have left and right hand (dual handed - DH) water and
TPR valve connections.
Technical data is subject to change.
29
INSTALLATION
Rheemglas Single Element
Rheemglas Twin Element
DH
DH
191160
192160
191250
192250
191315
192315
191400
192400
Hot Water Delivery
Litres
160
250
315
400
Boost Capacity
Litres
45
50
50
90
Dimensions A
mm
1610
1395
1640
1840
B
mm
480
640
640
690
C
mm
515
680
680
735
D
mm
1332
1117
1317
1479
E
mm
104
73
113
121
F
mm
66
103
103
105
G
mm
1081
988
1228
1323
H
deg
23
32
32
30
J
deg
58
88
88
83
M
deg
58
92
92
97
TPR Valve Setting
kPa
1400
1000
1000
1000
Approx. Weight empty
kg
55
76
97
118
DIMENSIONS AND TECHNICAL DATA – RHEEMGLAS 160 TO 400
All models are suitable for indoor or outdoor installation.
191, 192 series 160 to 400 models have left and right hand (dual handed - DH) water
connections and a TPR valve fitting on the left hand side only.
Technical data is subject to change.
30
INSTALLATION
RheemPlus Single Element
LH
121125
121160
121250
121315
Hot Water Delivery
Litres
125
160
250
315
Dimensions A
mm
1340
1610
1395
1640
B
mm
480
480
640
640
C
mm
515
515
680
680
D
mm
1102
1332
1117
1317
E
mm
64
104
73
113
F
mm
84
84
128
128
H
deg
23
23
32
32
J
deg
58
58
88
88
K
mm
545
545
705
705
L
mm
183
183
262
262
TPR Valve Setting
kPa
1400
1400
1000
1000
Approx. Weight empty
kg
49
57
74
99
DIMENSIONS AND TECHNICAL DATA – RHEEMPLUS 125 TO 315 MODELS
All models are suitable for indoor or outdoor installation.
121 series models have left hand (LH) water and TPR valve connections only.
Technical data is subject to change.
31
Rheemglas
RheemPlus
Hot water connection:
Rp 3/4
G 3/4 B
Cold water connection:
Rp 3/4
G 3/4 B
Relief valve connection:
Rp 1/2
Rp 1/2
CONNECTIONS – PLUMBING
All plumbing work must be carried out by a qualified person and in accordance
with the Standard AS/NZS 3500.4 and all local codes and regulatory authority
requirements. In New Zealand the installation must also conform with the New
Zealand Building Code.
CONNECTION SIZES
WATER INLET AND OUTLET
Rheemglas 045 to 400 models have dual handed cold and hot water
connections. The water connections can be made to either side.
All pipe work must be cleared of foreign matter before connection and purged
before attempting to operate the water heater. All olive compression fittings
must use brass or copper olives. Use thread sealing tape or approved thread
sealant on all fittings.
An isolation valve and non-return
valve must be installed on the cold
water line to the water heater. An
acceptable arrangement is shown in
the diagram. Refer also to “Hot
Water Delivery” on page 23 and to
“Mains Water Supply” on page 23.
A disconnection union must always
be provided at the cold water inlet
and hot water outlet on the water
heater to allow for disconnection of
the water heater.
This water heater has either a plastic dip tube or
fitting liner in the inlet and outlet fittings (see
diagram). These must be in place for the water
heater to function properly. Do not remove or
damage them by using heat nearby. They will be
pushed into the correct position as the fitting is
screwed in.
32
CONNECTIONS – PLUMBING
Models 045 to 125
Models 160 to 400
2 x ¾” brass plugs
2 x ¾” brass plugs
1 x ½” brass plug
3 x plastic caps (excl. 045 models)
2 x plastic caps
3 x insulation rubber discs,
pre-fitted into plastic caps (excl. 045 models)
2 x insulation rubber discs,
pre-fitted into plastic caps
1 x allen key
1 x allen key
BRASS PLUG
INSULATION RUBBER
PLASTIC CAP
TPRV FITTING
080 & 125
MODELS ONLY
BRASS PLUG
INSULATION RUBBER
PLASTIC CAP
LEFT AND RIGHT HAND SIDE WATER CONNECTIONS
The cold and hot water supplies (045 to 400 models) and temperature pressure
relief valve (045 to 125 models) can be connected to either side of a water
heater with both left and right hand side connections. A kit is supplied with the
water heater to plug off the unused cold water and hot water fittings, and where
applicable the unused temperature pressure relief valve fitting.
The kit contains:
Plugging Off Unused Connections
Apply approved sealing tape or compound to the thread of each plug.
Fit the ¾” plugs to the unused cold water fitting and unused hot water fitting.
Tighten the plugs with the allen key supplied.
Fit the ½” plug to the unused TPR valve fitting (045 to 125 models). Tighten
the plug with the allen key supplied.
Fit a plastic cap (except 045 models) with its insulation rubber disc over
each plug.
045, 050 models 080 to 400 models
33
CONNECTIONS – PLUMBING
USE TEFLON TAPE
FIT SUPPLIED INSULATION TO
VALVE AS SHOWN
PIPE SIZES
To achieve true mains pressure operation, the cold water line to the water
heater should be the same size or bigger than the hot water line from the water
heater.
The pipe sizing for hot water supply systems should be carried out by persons
competent to do so, choosing the most suitable pipe size for each individual
application. Reference to the technical specifications of the water heater and
local regulatory authority requirements must be made.
TEMPERATURE PRESSURE RELIEF VALVE
The temperature pressure relief valve is shipped either under the top flap of the
water heater carton or behind the front cover or in a plastic bag attached to the
water heater. The temperature pressure relief valve must be fitted before the
water heater is operated. Before fitting the relief valve, make sure the probe
has not been bent. Seal the thread with Teflon tape - never hemp. Make sure
the tape does not hang over the end of the thread.
The water heater has a temperature pressure relief valve connection on its left
hand side. Rheemglas 045 to 125 models have a second temperature pressure
relief valve connection on the right hand side.
Screw the valve into the selected opening labelled “Relief Valve” (refer to the
installation diagram on page 28) leaving the valve outlet pointing downwards.
Do not use a wrench on the valve body - use the spanner flats provided. A
copper drain line must be fitted to the temperature pressure relief valve (refer to
"Relief Valve Drain" on page 35). If the water heater has a second relief valve
fitting, refer to “Left and Right Hand Side Water Connections” on page 33.
The valve must be insulated with
closed cell polymer insulation or
similar (minimum thickness 9 mm)
and the insulation installed so as
not to impede the operation of the
valve. The insulation must be
weatherproof and UV resistant if
exposed.
Where an insulation collar is
supplied with the temperature
pressure relief valve, this must be
placed over the body of the valve,
prior to fitting the valve to the water
heater (refer to the diagram on
page 34).
34
CONNECTIONS – PLUMBING
EXPANSION CONTROL VALVE
Local regulations may make it mandatory to install an expansion control valve
(ECV) in the cold water line to the water heater. In other areas, an ECV is
required if the saturation index is greater than +0.4 (refer to “Water Supplies”
on page 14).
The expansion control valve must always be installed after the non return valve
and be the last valve installed prior to the water heater (refer to diagram on
page 32). A copper drain line must be fitted to the expansion control valve
(refer to "Relief Valve Drain" on page 35).
The valve must be insulated with closed cell polymer insulation or similar
(minimum thickness 9 mm) and the insulation installed so as not to impede the
operation of the valve. The insulation must be weatherproof and UV resistant if
exposed.
RELIEF VALVE DRAIN
DN15 copper drain lines must be fitted to the temperature pressure relief valve
and expansion control valve (if one is installed) to carry the discharge clear of
the water heater. Connect the drain lines to the valves using disconnection
unions. The drain line from the valve to the point of discharge should be as
short as possible, have a continuous fall all the way from the water heater to
the discharge outlet and have no tap, valves or other restrictions in the pipe
work. A drain line from a relief valve must comply with the requirements of
AS/NZS 3500.4.
A drain line must be no longer than 9 metres with no more than three bends
greater than 45° before discharging at an outlet or air break. The maximum
length of 9 metres for a drain line is reduced by 1 metre for each additional
bend required of greater than 45°, up to a maximum of three additional bends.
Where the distance to the point of final discharge exceeds this length, the drain
line can discharge into a tundish.
Subject to local regulatory authority approval, the drain lines from the
temperature pressure relief valve and expansion control valve from an
individual water heater may be interconnected.
The outlet of a drain line must be in such a position that flow out of the pipe can
be easily seen, but arranged so discharge will not cause injury, damage or
nuisance. The termination point of a drain line must comply with the
requirements of AS/NZS 3500.4. Drain lines must not discharge into a safe
tray.
In locations where water pipes are prone to freezing, drain lines must be
insulated, must not exceed 300 mm in length and are to discharge into a
tundish through an air gap of between 75 mm and 150 mm.
35
CONNECTIONS – PLUMBING
If a drain line discharges into a tundish, the drain line from the tundish must be
not less than DN20. The drain line from a tundish must meet the same
requirements as for a drain line from a relief valve.
Warning: As the function of the temperature pressure relief valve on this water
heater is to discharge high temperature water under certain conditions, it is
strongly recommended the pipe work downstream of the relief valve be capable
of carrying water exceeding 93°C. Failure to observe this precaution may result
in damage to pipe work and property.
36
CONNECTIONS – ELECTRICAL
The power supply to the water heater must not be switched on until the
water heater is filled with water and a satisfactory megger reading is
obtained.
All electrical work and permanent wiring must be carried out by a qualified
person and in accordance with the Wiring Rules AS/NZS 3000 and all local
codes and regulatory authority requirements.
WATER HEATER
A water heater not fitted with a supply cord and plug must be directly connected
to a 240 V AC, 50 Hz mains power supply with an isolating switch installed at
the switchboard.
The power supply to a twin element model should be Off-Peak (overnight) to
the bottom heating unit and continuous to the top heating unit. The power
supply to a single element model can be either an Off-Peak (overnight),
Extended Off-Peak (overnight and day) or continuous electricity supply,
depending upon the size of the water heater. Check with the local electricity
supply authority as to their requirements. An Off-Peak (overnight) power supply
will provide the maximum financial savings. Discuss the power supply
requirements with the householder.
A flexible 20 mm conduit is required for the electrical cable to the water heater.
The conduit is to be connected to the unit with a 20 mm terminator. Connect
the power supply wires directly to the terminal block and earth tab connection,
ensuring there are no excess wire loops inside the front cover. The temperature
rating of the power supply wires insulation must suit this application.
A water heater fitted with a supply cord and plug must be plugged into a
switched 240 V AC, 50 Hz mains power outlet rated at 10 A. The GPO is
required to be weatherproof if installed outdoors.
THERMOSTAT SETTING
The thermostat on a Rheemglas and RheemPlus model is adjustable from
60°C to 70°C (60°C to 75°C on a 045, 050 model). The thermostat is adjusted
by turning the adjuster (Rheemglas / RheemPlus model) anticlockwise to
decrease the temperature setting and clockwise to increase the temperature
setting. Only adjust the thermostat setting on a Rheemglas and RheemPlus
model when the isolating switch is switched off at the switchboard. The top
thermostat on a twin element model is fixed at 60°C.
The thermostat of a RheemPlus model should not be set to less than 65°C.
This is to assist in the specified operation of the temperature limiting valve.
37
CONNECTIONS – ELECTRICAL
For reasons of safety and economy, we advise the thermostat be set at the
lowest temperature that will provide sufficient hot water. Dishwasher running
costs can be adversely affected if the thermostat is set below 65°C. Discuss the
thermostat setting requirements with the householder.
If this water heater is installed as part of a solar water heating system:
the solar control system must be of a design to limit solar contribution so the
water temperature in the tank does not exceed 80°C. This is necessary to
ensure the solar input does not cause the thermostat‟s over-temperature
cut-out to operate.
we recommend the water heater thermostat is set at 60°C to maximise solar
contribution.
38
CONNECTIONS – ELECTRICAL
WIRING DIAGRAM TWIN ELEMENT ELECTRIC WATER HEATERS NON-SIMULTANEOUS OPERATION OFF-PEAK CONNECTION
Electrical Circuit for Twin Element Models – Robertshaw “ST” Thermostats
The active from the continuous supply must be connected to the top heating
unit circuit and the active from the Off-Peak or time controlled supply must be
connected to the bottom heating unit circuit.
39
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The power supply to the water heater must not be switched on until the
water heater is filled with water and a satisfactory megger reading is
obtained.
Open all of the hot water taps in the house (don‟t forget the shower).
Open the cold water isolation valve fully on the cold water line to the water
heater.
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Check the pipe work for leaks.
Plug in the power supply cord at the power outlet (power supply cord model
only).
Switch on the electrical supply at the isolating switch to the water heater.
If it is necessary to adjust the outlet temperature of a RheemPlus model, refer
to “Outlet Temperature Compensation Adjustment – RheemPlus” on page 41.
Explain to the householder or a responsible officer the functions and operation
of the water heater. Upon completion of the installation and commissioning of
the water heater, leave this guide with the householder or a responsible officer.
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation,
such as on a building site or where the premises is vacant, then;
Switch off the electrical supply at the isolating switch to the water heater.
Unplug the power supply cord from the power outlet (power supply cord
model only).
Close the cold water isolation valve at the inlet to the water heater.
40
COMMISSIONING
OUTLET TEMPERATURE COMPENSATION ADJUSTMENT – RHEEMPLUS
The maximum outlet temperature of a RheemPlus water heater may be
adjusted to compensate for temperature losses in the pipe work between the
water heater outlet and sanitary fixtures.
Warning: After adjustment of the temperature limiting valve, the water
temperature MUST NOT exceed 50°C from the first tap in the hot water pipe
work after the water heater used for personal hygiene purposes, such as in a
bathroom or ensuite.
To adjust the maximum outlet temperature:
Ensure the temperature of the water in the water heater is up to the
thermostat setting on the water heater.
The temperature of the water can be measured at the temperature pressure
relief valve drain discharge point. Do not measure this temperature from a
hot tap
Operate the easing lever on the temperature pressure relief valve and
place the thermometer in the flow of water from the relief valve drain
line.
Remove the upper plastic
casing and insulation
covering the pipe work on the
side of the water heater, by
removing the three (3)
retaining screws, to expose
the temperature limiting valve.
Locate the first hot tap in the
hot water pipe work after the
water heater used for
personal hygiene purposes.
Turn on the hot tap fully to
achieve maximum flow.
Using a thermometer, measure the temperature of the water from the tap,
until the temperature stops increasing.
If the water temperature is below 50°C the maximum outlet temperature of
the water heater can be adjusted upwards.
41
COMMISSIONING
Turn the adjusting knob on
the temperature limiting valve
counter-clockwise (down
away from the water heater),
using a 6 mm Allen key.
Turning the adjusting knob
counter clockwise (down
away from the water heater)
increases the outlet water
temperature, turning it
clockwise (up towards the
water heater) decreases the
outlet water temperature.
Repeat the water temperature measurement from the same hot tap.
Further adjust the temperature limiting valve as required, turning the
adjusting knob either counter clockwise (down away from the water heater)
or clockwise (up towards the water heater) to increase or decrease the
outlet water temperature, until an acceptable water temperature not
exceeding 50°C is measured at the same hot tap.
Note: The valve has a stop point for both maximum and minimum outlet
water temperature adjustment. The outlet water temperature cannot be
increased or decreased beyond these points. It is possible that, depending
upon valve tolerances and the pipe work design, 50°C water temperature
may not be attainable at the hot tap.
Turn off the hot tap.
Replace the insulation and plastic casing to cover the temperature limiting
valve and pipe work on the side of the water heater and secure using the
three (3) retaining screws.
42
DRAINING THE WATER HEATER
Warning: Exercise care, as water discharged from the water heater may be
of a very high temperature.
To drain the water heater:
Turn off the water heater (refer to “To Turn Off The Water Heater” on
page 40).
Close all hot water taps.
Operate the relief valve release lever - do not let the lever snap back or you
will damage the valve seat.
Operating the lever will release the pressure in the water heater.
Undo the union at the cold water inlet to the water heater and attach a hose
to the water heater side of the union.
Let the other end of the hose go to a drain.
Operate the relief valve again.
This will let air into the water heater and allow the water to drain through the
hose.
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44
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES
1. THE RHEEM WARRANTY – GENERAL
1.1 This warranty is given by Rheem Australia Pty Limited ABN 21 098 823 511 of 1 Alan Street,
Rydalmere New South Wales.
1.2 Rheem offer a trained and qualified national service network who will repair or replace
components at the address of the water heater subject to the terms of the Rheem warranty.
Rheem Service, in addition can provide preventative maintenance and advice on the operation of
your water heater. The Rheem Service contact number is available 7 days a week on 131031
with Service personnel available to take your call from 8am to 8pm daily (hours subject to
change).
1.3 For details about this warranty, you can contact us on 131031 or by email at
warrantyenquiry@rheem.com.au (not for service bookings).
1.4 The terms of this warranty and what is covered by it are set out in sections 2 and 3 and apply to
water heaters manufactured after 1st April 2013.
1.5 If a subsequent version of this warranty is published, the terms of that warranty and what is
covered by it will apply to water heaters manufactured after the date specified in the subsequent
version.
2. TERMS OF THE RHEEM WARRANTY AND EXCLUSIONS TO IT
2.1 The decision of whether to repair or replace a faulty component is at Rheem’s sole discretion.
2.2 If you require a call out and we find that the fault is not covered by the Rheem warranty, you are
responsible for our standard call out charge. If you wish to have the relevant component repaired
or replaced by Rheem, that service will be at your cost.
2.3 Where a failed component or cylinder is replaced under this warranty, the balance of the original
warranty period will remain effective. The replacement does not carry a new Rheem warranty.
2.4 Where the water heater is installed outside the boundaries of a metropolitan area as defined by
Rheem or further than 25 km from either a regional Rheem branch office or an Accredited
Rheem Service Agent's office, the cost of transport, insurance and travelling between the nearest
branch office or Rheem Accredited Service Agent’s office and the installed site shall be the
owner’s responsibility.
2.5 Where the water heater is installed in a position that does not allow safe or ready access, the
cost of that access, including the cost of additional materials handling and/or safety equipment,
shall be the owner’s responsibility. In other words, the cost of dismantling or removing
cupboards, doors or walls and the cost of any special equipment to bring the water heater to floor
or ground level or to a serviceable position is not covered by this warranty.
2.6 This warranty only applies to the original and genuine Rheem water heater in its original installed
location and any genuine Rheem replacement parts.
45
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES
2.7 The Rheem warranty does not cover faults that are a result of:
a) Accidental damage to the water heater or any component (for example: (i) Acts of God such
as floods, storms, fires, lightning strikes and the like; and (ii) third party acts or omissions).
b) Misuse or abnormal use of the water heater.
c) Installation not in accordance with the Owner’s Guide and Installation Instructions or with
relevant statutory and local requirements in the State or Territory in which the water heater is
installed.
d) Connection at any time to a water supply that does not comply with the water supply
guidelines as outlined in the Owner’s Guide and Installation Instructions.
e) Repairs, attempts to repair or modifications to the water heater by a person other than
Rheem Service or a Rheem Accredited Service Agent.
f) Faulty plumbing or faulty power supply.
g) Failure to maintain the water heater in accordance with the Owner's Guide and Installation
Instructions.
h) Transport damage.
i) Fair wear and tear from adverse conditions (for example, corrosion).
j) Cosmetic defects.
2.8 Subject to any statutory provisions to the contrary, this warranty excludes any and all claims for
damage to furniture, carpet, walls, foundations or any other consequential loss either directly or
indirectly due to leakage from the water heater, or due to leakage from fittings and/ or pipe work
of metal, plastic or other materials caused by water temperature, workmanship or other modes of
failure.
2.9 If the water heater is not sized to supply the hot water demand in accordance with the guidelines
in Rheem’s water heater literature, any resultant fault will not be covered by the Rheem warranty.
46
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE
What components are
covered
The period from the
date of installation in
which the fault must
appear in order to be
covered
What coverage you receive
All components
Year 1
Repair and/or replacement of the faulty
component, free of charge, including labour.
Rheemglas / RheemPlus models
The cylinder
(if the water heater is
installed in a single-family
domestic dwelling)
Years 2 & 3
Repair and / or replacement of the cylinder,
free of charge, including labour.
Years 4 to 7
Replacement cylinder, free of charge.
Installation and repair labour costs are the
responsibility of the owner.
The cylinder
(if the water heater is not
installed in a single-family
domestic dwelling)
Years 2 & 3
Replacement cylinder, free of charge.
Installation and repair labour costs are the
responsibility of the owner.
WATER HEATER WARRANTY - AUSTRALIA ONLY
ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES
3.1 Rheem will repair or replace a faulty component of your water heater if it fails to operate in
accordance with its specifications as follows:
3. WHAT IS COVERED BY THE RHEEM WARRANTY
FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT
47
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE
RHEEM AUSTRALIA PTY LTD A.B.N. 21 098 823 511 www.rheem.com.au
For Service Telephone 131 031 AUSTRALIA 0800 657 335 NEW ZEALAND
WATER HEATER WARRANTY - AUSTRALIA ONLY
ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES
4.1 To be entitled to make a claim under this warranty you need to:
4.2 You are not entitled to make a claim under this warranty if your water heater:
5.1 If you wish to make a claim under this warranty, you need to:
5.2 Any expenses incurred in the making of a claim under this warranty will be borne by you.
6.1 Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
6.2 The Rheem warranty (set out above) is in addition to any rights and remedies that you may have
4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY
a) Be the owner of the water heater or have consent of the owner to act on their behalf.
b) Contact Rheem Service without undue delay after detection of the defect and, in any event,
within the applicable warranty period.
a) Does not have its original serial numbers or rating labels.
b) Is not installed in Australia.
5. HOW TO MAKE A CLAIM UNDER THIS WARRANTY
a) Contact Rheem on 131031 and provide owner’s details, address of the water heater, a
contact number and date of installation of the water heater or if that’s unavailable, the date of
manufacture and serial number (from the rating label on the water heater).
b) Rheem will arrange for the water heater to be tested and assessed on-site.
c) If Rheem determines that you have a valid warranty claim, Rheem will repair or replace the
water heater in accordance with this warranty.
6. THE AUSTRALIAN CONSUMER LAW
You are entitled to a replacement or refund for a major failure and for compensation for any other
reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and the failure does not amount to a major
failure.
under the Australian Consumer Law.
Revision Date: 2013 October 122179C
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