Owner’s Guide
and
Installation Instructions
Gas Domestic Outdoor Water Heater
8A0 330 stainless steel model
This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Warning: Upon completion of the installation and commissioning of the
water heater, leave this guide with the householder or responsible officer.
DO NOT leave this guide inside of the cover of the water heater, as it may
interfere with the safe operation of the water heater or ignite when the water
heater is turned on.
PATENTS
This water heater may be protected by one or more patents or registered designs
in the name of Rheem Australia Pty Ltd or Aquamax Australia Pty Limited.
®
TRADEMARKS
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.
CONTENTS
HOUSEHOLDER – We recommend you read pages 4 to 22.
The other pages are intended for the installer
but may be of interest.
About Your Water Heater ............................................................4
Regular Care ..............................................................................12
Water Supplies ...........................................................................15
Save A Service Call ...................................................................19
Installation ..................................................................................23
Connections – Plumbing ..........................................................32
Commissioning ..........................................................................36
Lighting The Water Heater ........................................................40
Draining The Water Heater .......................................................44
Warranty .....................................................................................46
3
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 model you have
chosen is suitable for outdoor installation only.
The model is a high efficiency, quick recovery
8A0 series Rheem Stellar™ 330 stainless
steel water heater.
Water is stored in a stainless steel cylinder
and heated by a gas burner located under the
cylinder. The heat produced by the burner is
transferred to the water through the base, top
and side walls of the storage cylinder with flue
baffle rings capturing heat to improve
efficiency. The gas supply to the burner is
controlled by the thermostat so the water is
heated to a constant temperature.
Automatic safety controls are fitted to the water heater to provide safe and
efficient operation.
HOW HOT SHOULD THE WATER BE?
The water heater features a user adjustable
thermostat, which allows you to personally
choose the most suitable temperature for your
hot water needs. Refer to “Temperature
Adjustment” on page 7.
To meet the requirements of the National
Plumbing Standard the temperature of the
stored water must not be below 60°C.
Note: AS 3498 requires that a water heater
provides the means to inhibit the growth of
Legionella bacteria in potable water. This
water heater can satisfy this AS 3498
requirement provided it is operating and the
thermostat setting is 60°C or higher, including
when it is used as an in-series booster water
heater for a solar water heater.
4
maximum thermostat
setting
minimum
recommended stored
water temperature
maximum
recommended supply
temperature to
bathrooms and
ensuites
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 this 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.
Note: Where a temperature limiting device is fitted to the hot water pipe work
after a Rheem Stellar 330 stainless steel model, the dial of the water heater‟s
adjustable water mixing valve must be set on position „5‟. Refer to “Adjustable
Water Mixing Valve” on page 7.
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 26, 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 12.
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.
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.
SAFETY
This water heater is supplied with a thermostat, an over-temperature cut-out, a
thermocouple and a combination temperature pressure relief 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.
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.
Do
not
store
flammable
or
combustible materials near the water
heater. Flammable liquids (such as
petrol), newspapers and similar articles
must be kept well away from the water
heater and the flue terminal.
Do not use aerosols, stain removers
and household chemicals near the
water heater whilst it is working. Gases
from some aerosol sprays, stain
removers and household chemicals
become corrosive when drawn into a
flame.
Do not store swimming pool chemicals, household cleaners, etc., near
the water heater.
Do not place anything on top of the water heater or in contact with the flue
terminal. Ensure the flue terminal is not obstructed in any way at any time.
6
ABOUT YOUR WATER HEATER
TEMPERATURE ADJUSTMENT
This water heater has two forms of water temperature adjustment:
A temperature dial on the gas control (thermostat) – this controls the water
temperature inside of the storage cylinder.
An adjustable water mixing valve – this controls the delivered water
temperature from the water heater.
Gas Control Temperature Dial
The temperature dial is on the gas control, located behind the access cover on
the lower front of the water heater.
The thermostat is adjustable up to
approximately 75°C. Each number represents
a temperature difference of approximately
10°C. When aligned with the temperature dial
position indicator on the gas control body, a
setting of mid way between „3‟ and „4‟ will
normally maintain the water temperature at
about 60°C.
temperature dial position indicator
To increase the water temperature to 75°C,
turn the gas control knob anticlockwise to a
setting of „5‟. Refer to “Hotter Water Increases
the Risk of Scald Injury” on page 5.
Adjustable Water Mixing Valve
The Rheem Stellar 330 stainless steel model has a user adjustable water
mixing valve. The adjustment dial is located on the left hand side of the water
heater, between the cold water inlet and hot water outlet connections.
The valve can be adjusted to increase or decrease the hot water temperature
delivered by the water heater by mixing cold water from the water supply with
hot water from the storage cylinder. This can allow hot water to be delivered
below 50°C whilst the stored water is maintained at or above 60°C.
Warning: This adjustable water mixing valve cannot be used as the
approved temperature limiting device, if one is required by regulations to be
installed into the hot water pipe work to the bathroom and ensuite or other
ablution areas.
Adjusting the dial of the adjustable water mixing valve to position „5‟ will allow
water to be delivered at the stored temperature of the water heater (no mixing
with cold water). Each number represents a temperature difference of
approximately 5°C, with an incremental increase of cold water mixing with the
hot water to reduce the delivered water temperature.
7
ABOUT YOUR WATER HEATER
Note: When a temperature limiting device is fitted to the hot water pipe work
downstream of a Rheem Stellar 330 stainless steel model or if the water heater
is installed as part of a circulated flow and return system, the dial of the water
heater‟s adjustable water mixing valve must be set on position „5‟.
Setting the Adjustable Dial
To set the adjustable dial:
1.
Ensure the water in the storage
cylinder is at the thermostat‟s selected
temperature.
Turn on a hot tap and allow to run
until the burner comes on.
Turn off the hot tap and wait for
the burner to extinguish.
adjustment
dial
The water temperature is now up
to the thermostat setting.
2.
Close the cold water isolation valve at
the inlet to the water heater.
Caution: The cold water supply to the water heater must be turned off and
pressure relieved from the water heater prior to adjusting the water mixing
valve. Damage can result to the valve if it is adjusted whilst subject to
mains pressure.
3.
Either open a hot water tap or operate the easing lever on the temperature
pressure relief valve (refer to “Temperature Pressure Relief Valve” on
page 14) and let the water run until there is little or no flow. Close the tap
or lower the easing lever gently.
This will relieve the pressure in the system.
4.
Insert a large flat bladed screwdriver into the slot on the adjustment dial
and rotate the dial anticlockwise to decrease or clockwise to increase the
delivered water temperature.
Each number represents a temperature difference of approximately 5°C.
5.
Open the cold water isolation valve at the inlet to the water heater.
6.
Open a hot water tap and let the water flow for two (2) to three (3) minutes.
7.
Using a thermometer, measure the water temperature at the opened tap.
If the measured water temperature is as desired, the water mixing valve is
correctly set.
If the measured water temperature is not as expected, repeat steps 1 to 7
until the desired water temperature is obtained.
8
ABOUT YOUR WATER HEATER
Notes
If the adjustable water mixing valve is set on the lowest setting (position „1‟)
and the delivered water temperature is still too hot, then reduce the
thermostat setting on the gas control and wait twenty four (24) hours before
repeating the procedure above. Refer to “Gas Control Temperature Dial” on
page 7 for information on adjusting the thermostat setting.
The delivered water temperature should be checked periodically at a hot
water tap. The incoming cold water temperature can vary from summer to
winter. This change in cold water temperature will affect the delivered mixed
water temperature. The water mixing valve may require adjustment between
summer and winter or other seasons of the year.
Warning: Small changes to the adjustable water mixing valve setting can
lead to significant water temperature changes. Changing the valve‟s setting or
the water heater‟s thermostat setting will cause the water delivery temperature
to be altered. If either of these settings is altered, the water mixing valve
adjustment procedure must be repeated to ensure the delivered hot water
temperature is satisfactory.
PIEZO IGNITION
The “Piezo” push button igniter makes lighting
the pilot flame of your water heater very easy.
Simply follow the instructions on the label
attached to the back of the access door.
There is no need for matches to light the
water heater.
PILOT IGNITER
A permanent pilot flame burns to ignite the
main burner automatically. Heat from the pilot
is absorbed by the water.
GOING ON HOLIDAYS
If you plan to be away from home for one or two nights, we suggest you leave
the water heater turned on. However, if you plan to stay away more than a few
nights, the gas knob can be set to the red star “ ” (pilot) position (facing the
front) to conserve energy (refer to steps 1, 2 and 4 of “Close Down Procedure”
on page 43).
If it is necessary to turn off the water heater, refer to “To Turn Off The Water
Heater” on page 10.
Note: When turned back on from the red star “ ” (pilot) position or white dot
“” (off) position, the water heater may take up to an hour to reheat if the water
has lost temperature.
9
ABOUT YOUR WATER HEATER
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater:
Shut down the gas control (refer to “Close Down Procedure” on page 43).
Close the gas isolation valve at the inlet to the gas control.
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 at the inlet to the water heater.
Open the gas isolation valve fully at the inlet to the gas control.
Light the water heater (refer to “Lighting the Water Heater” on page 40).
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
Installation requirements are shown on pages 23 to 30. 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 5601 or AS/NZS 5601.1,
as applicable under local regulations, and all local codes and regulatory
authority requirements.
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 six (6) years. Make sure you use a
licensed person to install this water heater and ask for your Compliance
Certificate.
10
ABOUT YOUR WATER HEATER
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 15.
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 15 to 18.
HOW LONG WILL THE WATER HEATER LAST?
The water heater is supported by a manufacturer‟s warranty (refer to page 46).
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 5.
11
REGULAR CARE
MINOR SIX MONTH MAINTENANCE
It is recommended minor maintenance be performed every six (6) 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 14.
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 13.
Check the drain line from the safe tray (if one is installed) is not blocked.
ANNUAL SERVICE
For safe and efficient operation, it is recommended an annual 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 annual service and routine replacement of any components, if
required, 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 annual service includes the following actions:
Inspect and flush the temperature pressure relief valve.
Inspect and flush the expansion control valve (if fitted).
Check and if necessary adjust the inlet gas pressure.
Check the condition and operation of the piezo igniter, gas control and
thermocouple.
Check the operation of and clean the pilot light and main burner.
Visually check the unit for any potential problems.
Inspect plumbing and gas connections.
Check the drain line from the safe tray (if one is installed) is not blocked.
12
REGULAR CARE
MAJOR FIVE YEAR SERVICE
It is recommended a major five (5) year service be conducted on the water
heater.
Warning: Servicing of a gas water heater must only be carried out by
qualified personnel. Phone Rheem Service or their nearest Accredited Service
Agent.
Note: The five (5) year service and routine replacement of any components,
such as the 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 pressure relief valve.
Inspect and flush the expansion control valve (if fitted). If required, replace
the valve.
Check and if necessary adjust the inlet gas pressure.
Check the condition and operation of the piezo igniter, gas control and
thermocouple.
Check the operation of and clean the pilot light and main burner.
Visually check the unit for any potential problems.
Inspect plumbing and gas connections.
Note: The water heater may need to be drained during this service. After the
completion of the service, the water heater will take approximately an hour to
heat the water.
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 (6)
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 five (5) years, or more frequently in areas where there
is a high incidence of water deposits.
13
REGULAR CARE
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 20).
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 (6) months. It is very
important you raise and lower the
lever gently.
water
heater
Warning: Failure to do this may
result in the water heater cylinder
failing.
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.
lift until water
flows from the
drain line –
lower gently
drain
line
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 five (5) years, or more frequently in areas where there is a high
incidence of water deposits (refer to “Water Supplies” on page 15).
14
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.
A list of postcodes is available on the Rheem website (www.rheem.com.au)
indicating known areas where the stainless steel cylinder is not covered by the
Rheem warranty due to the water chemistry of the area. The list is not
necessarily exhaustive and there may be areas outside of these postcodes
where the stainless steel cylinder is not covered by the Rheem warranty due to
the water chemistry of the area.
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,
which takes precedence over the list of postcodes, for the Rheem warranty to
apply.
It is recommended to install a suitable filter on the cold water supply line to the
water heater if the water supply contains or has a future risk of containing
suspended solids. The Rheem warranty will not cover resultant faults on
components including the stainless steel cylinder due to the effects of sludge
and / or sediment settling in the water heater.
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 and a temperature pressure relief valve.
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.
15
WATER SUPPLIES
CHLORIDE AND PH
In a high chloride water supply, the water can corrode stainless steel parts and
cause them to fail.
Where the chloride level exceeds 250 mg / L the Rheem warranty does not
apply to a stainless steel cylinder.
pH is a measure of whether the water is alkaline or acid. In an acidic or very
alkaline water supply, the water can attack stainless steel parts and cause
them to fail.
Where the pH is less than 6.0 or greater than 9.5, the Rheem warranty does
not apply to a stainless steel cylinder. Water with a pH less than 6.0 may be
treated to raise the pH.
The water supply from a rainwater tank in a metropolitan area is likely to be
corrosive due to the dissolution of atmospheric contaminants. This may result
in pH of less than 6.0. It is recommended an analysis on the water from a
rainwater tank be conducted prior to connecting this type of water supply to a
water heater with a stainless steel cylinder.
Refer to the pH and Chloride chart on page 16.
pH & CHLORIDE
WATER HEATERS (stainless steel cylinder)
CHLORIDE - mg/L
350
no warranty applies to a:
-stainless steel water heater cylinder
300
250
no warranty applies
to a:
-stainless steel water
heater cylinder
200
150
100
WITHIN WARRANTY
SPECIFICATION
no warranty applies to a:
-stainless steel water heater cylinder
50
0
4.0
5.0
6.0
acidic
7.0
pH
16
8.0
alkaline
9.0
10.0
11.0
WATER SUPPLIES
SATURATION INDEX
The saturation index (SI) 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.
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 nonreturn 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 stainless steel cylinder.
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 17.
Refer to the cold water connection diagram on page 32 for the position of the
expansion control valve.
WITHIN WARRANTY
SPECIFICATION
-1.0
very corrosive
0
+0.4
SATURATION INDEX
(calculated @ 80°C water temperature)
scaling
corrosive
17
no warranty applies to a:
-stainless steel cylinder
no warranty applies to a:
temperature pressure relief valve or a
water heater cylinder unless an
expansion control valve is fitted.
SATURATION INDEX (SI)
GAS STORAGE WATER HEATERS - STAINLESS STEEL
+0.8
very scaling
WATER SUPPLIES
TOTAL DISSOLVED SOLIDS
The stainless steel 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
600 mg / L.
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.
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:
Water Chemistry
Component
Chloride > 250 mg / L
water heater cylinder
pH < 6.0 or > 9.5
water heater cylinder
Total Dissolved Solids (TDS) > 600 mg / L
water heater cylinder
Saturation Index (SI) > +0.4
(if expansion control valve is not fitted)
water heater cylinder
temperature pressure relief valve
Saturation Index (SI) > +0.8
water heater cylinder
Magnesium > 10 mg / L
water heater cylinder
Iron > 1 mg / L
water heater cylinder
Sodium > 150 mg / L
water heater cylinder
18
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 manufacture or failure of
a part.
NOT ENOUGH HOT WATER (OR NO HOT WATER)
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.
Pilot flame alight?
Check the pilot flame is burning by
removing the access cover. Relight the
pilot flame according to the lighting
instructions.
Refer to “Lighting the Water Heater” on page 40.
Temperature pressure relief valve running
Is the relief valve discharging too much water?
Refer to “Temperature Pressure Relief Valve Running” on page 20.
Thermostat setting
Ensure the thermostat setting is appropriate. You may choose to adjust the
thermostat upwards to gain additional hot water capacity.
Refer to “Gas Control Temperature Dial” on page 7.
Warning: Hotter water increases the risk of scald injury.
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.
19
SAVE A SERVICE CALL
WATER NOT HOT ENOUGH
Has your hot water usage increased?
You may find that due to heavy hot water usage the water temperature may
be lower than normally expected.
Is the adjustable water mixing valve setting correct?
Check the setting of the adjustable water mixing valve. If the temperature of
the water being delivered is too low for your requirements, then adjust the
setting to a higher number. Refer to “Adjustable Water Mixing Valve” on
page 7.
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
It is normal and desirable 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 14). 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 the water heater is cold - then stops
until water reheats
The gas control must be turned off using the knob on top of the gas control
thermostat (refer to “Close Down Procedure” on page 43). Phone Rheem
Service or nearest Accredited Service Agent to arrange for inspection.
20
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.
CAN’T LIGHT THE PILOT FLAME
Is there gas to the water heater?
Check the gas isolation valve on the
gas supply line is open.
Is there a normal gas supply to the
rest of the premises?
Try lighting another gas appliance to
check. If there is no gas, call the gas
supplier.
WATER HEATER APPEARS TO BE LEAKING
When the water heater is first lit, or after a
large usage of hot water, condensation
may form on and drip from the burner and
grille at the front of the water heater.
During periods of heavy condensation, the
condensate may also form around the base
of the water heater. This is quite normal,
especially in winter months and will dry off
as the water is heated.
The water heater will drip water during the
heating cycle. It is possible for several litres
a day of condensation to discharge from
the flue onto the burner tray especially in
cool conditions. This water is not from the
mains supply but is condensation from the
atmosphere caused by the efficient
operation of the water heater.
Note: During the heating cycle it is not unusual to see water vapour clouds
steaming from the flue terminal. This is normal operation of the water heater.
21
SAVE A SERVICE CALL
HIGHER THAN EXPECTED GAS BILLS
Should you at any time, feel your gas bill 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 20.
Is one outlet (especially the shower)
using more hot water than you think?
Refer to “Not Enough Hot Water (or No
Hot Water)” on page 19.
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 gas.
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 gas retailer since
your previous bill?
Check your previous bill and compare gas rates and charges.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU
NEED ASSISTANCE, PHONE RHEEM SERVICE OR THEIR NEAREST
ACCREDITED SERVICE AGENT.
22
INSTALLATION
THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY.
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.
Check the water heater is suitable for the gas type available (refer to the
rating label affixed behind the access cover on the water heater).
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 5601 or AS/NZS 5601.1,
as applicable under local regulations, and all local codes and regulatory
authority requirements.
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.
Note: AS 3498 requires that a water heater provides the means to inhibit the
growth of Legionella bacteria in potable water. This water heater can satisfy
this AS 3498 requirement provided it is operating and the thermostat setting is
60°C or higher, including when it is used as an in-series booster water heater
for a solar water heater.
23
INSTALLATION
WATER HEATER LOCATION
The water heater should be installed close to the most frequently used outlet
and its position chosen with safety and service in mind. Make sure people
(particularly children) will not touch the flue terminal. The flue terminal must be
clear of obstructions and shrubbery.
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
access cover, top panel and burner
can
be
removed
for
service.
Remember you may have to remove
the entire water heater later for
servicing.
The water heater is to be installed at ground or floor level on a stable fireproof
base as acceptable to local authorities. The water heater must also stand
vertically upright with the back of the water heater against or within 25 mm of
an external wall or alternatively against a fireproof screen extending at least
500 mm above, below and either side the flue terminal. Failure to observe this
precaution can cause problems in high wind areas.
Alternatively, the water heater may be installed partially recessed into an
external wall. A flashing kit for a recessed installation is available from Rheem.
Refer to “Flashing Kit” on page 27.
A secondary flue is not required.
It is a requirement of AS 5601 and AS/NZS 5601.1 to secure the water heater
to the wall. The top of the unit is to be secured to the wall or screen using the
wall bracket provided. Use the M6.5 masonry anchor provided only if it is
suitable for the wall or screen type. Otherwise select and use an alternative
fastener suitable for the application. Refer to “Wall Bracket” on page 27.
Note: If the base of the water heater is higher than the lowest hot water outlet
by 2 m or more, the tank may be subject to a negative pressure (partial
vacuum) which can cause damage to the water heater cylinder. In this
instance, an approved vacuum break valve (RMC AV50A or equivalent) must
be installed at the highest point in the hot water line. Damage to the cylinder
caused by incorrect installation is not covered by the Rheem warranty.
24
INSTALLATION
The water heater must not be installed in an area with a corrosive atmosphere
where chemicals are stored or where aerosol propellants are released.
Remember the air may be safe to breathe, but when it goes through a flame,
chemical changes take place which may attack the water heater.
The water heater must be located to ensure that the location of the flue terminal
complies with the requirements of AS 5601 or AS/NZS 5601.1, as applicable
under local regulations. As a guide the following requirements are extracted
from the Gas Installations Standard. The distances are measured along the
wall behind the water heater.
At least 500 mm between the
flue terminal and the edge of any
opening into the building, such
as an openable door or window,
measured
horizontally*
and
vertically.
At least 500 mm between the
flue terminal and a return wall or
external
corner,
measured
horizontally*.
At least 500 mm from of any
combustibles.
CLEARANCE REQUIREMENTS
330 SS Gas
Outdoor
Water Heater
Note: * If these horizontal distances cannot
be Domestic
achieved,
AS/NZS
5601.1
states an equivalent horizontal distance measured diagonally from the nearest
discharge point of the flue terminal to the opening may be deemed to comply.
Check with the local regulator.
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.
25
INSTALLATION
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 cold water connection diagram on page 32.
330
Model
Relief valve setting
1400 kPa
Expansion control valve setting *
1200 kPa
Max. mains supply pressure
With expansion control valve
960 kPa
Without expansion control valve
1120 kPa
* Expansion control valve not supplied with the water heater.
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.
WATER CHEMISTRY
Water chemistry which can have a detrimental effect on the water heater and
its operation and / or life expectancy. Refer to “Water Supplies” on page 15 for
information on water chemistry and its effect on the water heater.
It is recommended to install a suitable filter on the cold water supply line to the
water heater if the water supply contains or has a future risk of containing
suspended solids.
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.
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.
26
INSTALLATION
FLASHING KIT
A Flashing Kit (PN AQ1064105) for a recessed installation is available from
Rheem. It is sold separately to the water heater. The Flashing Kit must not be
installed within a 100 mm wide vertical strip either side of the cold water inlet,
hot water outlet and temperature pressure relief valve.
When attaching a Flashing Kit to the water heater jacket, use of self-drilling
screws with a maximum length of 13 mm. An effective seal must be achieved
where the screw penetrates the jacket.
Note: If the water heater or storage cylinder is damaged as a result of installing
the Flashing Kit, any resultant faults will not be covered by the Rheem
warranty.
WALL BRACKET
It is a requirement of AS 5601 and AS/NZS 5601.1 to secure the water heater
to the wall. The top of the unit is to be secured to the wall (or screen) using the
wall bracket provided. Use the M6.5 masonry anchor provided only if it is
suitable for the wall type. Otherwise select and use an alternative fastener
suitable for the application.
The fastener must be capable of bearing the weight of the water heater so it
may neither work loose, pull away from the wall nor impose any load on the gas
and water pipe work connected to the water heater. Refer to the fastener
manufacturer‟s information and recommendations for the type of fastener to
use for the wall type and load bearing requirements.
To fit the wall bracket:
masonry
anchor
Slide the wall bracket into the
formed slot at the top rear of the
water heater.
nut
Ensure the angled profile is
facing the wall.
wall
bracket
Mark the wall where the hole is
to be drilled.
bracket
slot
Remove the bracket.
Drill the hole to receive the
M6.5 masonry anchor or other
suitable fastener.
Replace the wall bracket with
the angled profile facing the wall.
Secure the wall bracket to the
wall.
27
INSTALLATION
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 the water heater and the hot water outlets in any ablution and public
areas such as a bathroom, ensuite or public amenities, 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 or public 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.
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.
Note: When a temperature limiting device is fitted to the hot water pipe work
downstream of a Rheem Stellar 330 stainless steel model, the dial of the water
heater‟s adjustable water mixing valve must be set on position „5‟. Refer to
“Adjustable Water Mixing Valve” on page 7.
Two Temperature Zones Using a Temperature Limiting Device
28
INSTALLATION
CIRCULATED HOT WATER FLOW AND RETURN SYSTEM
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 29.
The dial of the Rheem Stellar 330 stainless steel water heater‟s adjustable
water mixing valve must be set on position „5‟. Refer to “Adjustable Water
Mixing Valve” on page 7.
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 System – Gas Water Heater
29
INSTALLATION
TYPICAL INSTALLATION – OUTDOOR LOCATION
WALL BRACKET
TEMPERATURE
PRESSURE RELIEF
VALVE
FLUE TERMINAL
Minimum distance to
windows, doors and
walls must be in
accordance with
regulatory authority
requirements.
TEMPERATURE
PRESSURE RELIEF
VALVE DRAIN LINE
Drain line must
terminate away from the
base of the water heater.
Discharge point must
comply with local
installation requirements.
HOT WATER OUTLET
Use a union connection
and insulate hot water
pipe.
ACCESS COVER
Lighting instructions
are on the back of this
door. The rating label
can be found on the
internal panel when the
door is removed. Door
must be replaced after
lighting and remain in
place when the water
heater is operating.
INSULATED HOT
WATER PIPE
COLD WATER
CONNECTION
Cold water connection
must comply with local
regulations.
COLD WATER INLET
PIEZO IGNITER inside.
BASE
Level, stable impervious
base designed to avoid
ponding.
GAS SUPPLY PIPE
Isolating valve and
union must be used.
TYPICAL INSTALLATION
STAINLESS STEEL GAS WATER HEATER
30
INSTALLATION
DIMENSIONS AND TECHNICAL DATA
320
10
270
610 548
TPR
VALVE
GAS
INLET
415
520
TPR
VALVE
TOP OF
FLUE
TERMINAL
1625
1405
HOT
OUTLET
GAS
INLET 840
COLD
INLET
393
333
360
ACCESS COVER
Model
Storage capacity
Hourly recovery
DIMENSION
DRAWING
8A0
330
Gas
Details – Natural Gas
STAINLESS
STEEL
GAS
WATER
HEATER
litres
155
Hourly Gas
Consumption
(MJ)
(natural gas @ 45°C rise)
litres
185
Min. Gas Supply Pressure
40
(kPa) 1.13
litres
First hour capacity
340
Burner Test Point Gas Pressure(kPa) 1.00
Mass (tank) Empty kg
65
Max. Gas Supply Pressure
(kPa) 3.50
Full kg
220
Model number: N = Natural is included in the model number, e.g. 8A0330N0, to
denote gas type.
Technical data is subject to change.
31
CONNECTIONS – PLUMBING
All plumbing work must be carried out by a qualified person and in compliance
with the Standard AS/NZS 3500.4 and all local codes and regulatory authority
requirements.
All gas work must be carried out by a qualified person and in compliance with
the Standard AS 5601 or AS/NZS 5601.1, as applicable under local
regulations, and all local codes and regulatory authority requirements.
CONNECTION SIZES
Hot water connection: Rp 3/4.
Cold water connection: Rp 3/4.
Relief valve connection: Rp 1/2.
Gas inlet: Rp 1/2.
WATER INLET AND OUTLET
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 28 and to
“Mains Water Supply” on page 26.
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.
cold water connection
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.
32
CONNECTIONS – PLUMBING
TEMPERATURE PRESSURE RELIEF VALVE
The temperature pressure relief valve is shipped behind the front cover. 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.
Screw the valve into the correct opening (refer to the installation diagram
page 30) leaving the valve drain pointing downwards. Do not use a wrench
the valve body - use the spanner flats provided. A copper drain line must
fitted to the temperature pressure relief valve (refer to "Relief Valve Drain"
page 34).
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.
on
on
be
on
USE TEFLON TAPE
An insulation collar is supplied with
the temperature pressure relief
valve and must be placed over the
body of the valve, prior to fitting the
valve to the water heater (refer to
the diagram on page 33).
FIT SUPPLIED INSULATION TO
VALVE AS SHOWN
EXPANSION CONTROL VALVE
Local regulations may make it mandatory to install an expansion control valve
in the cold water line to the water heater. In other areas, an expansion control
valve is required if the saturation index is greater than +0.4 (refer to “Water
Supplies” on page 15).
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 the cold water
connection diagram on page 32). A copper drain line must be fitted to the
expansion control valve (refer to "Relief Valve Drain" on page 34).
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.
33
CONNECTIONS – PLUMBING
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 continuously downward 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 nine (9) metres with no more than three
bends greater than 45° before discharging at an outlet or air break. The
maximum length of nine (9) metres for a drain line is reduced by one (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.
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.
34
CONNECTIONS – PLUMBING
GAS INLET
The gas connection is made through the left hand side near the access cover
to the gas control. The pipe work must be cleared of foreign matter before
connection and purged before attempting to light the water heater. An isolation
valve and disconnection union must be installed to allow servicing and removal
of the water heater.
Remove the yellow warning label from the gas control after connecting the gas
supply pipe.
Note: Refer to the Gas Installations Standard AS 5601 or AS/NZS 5601.1 for
the correct method of sizing the gas supply pipe to the water heater. The pipe
size selection must take into account the gas input of this water heater (refer to
table on page 31) as well as all of the other gas appliances in the premises.
Warning: Always isolate the water heater before pressure testing the gas
supply system. Disconnect the water heater after the isolating cock to prevent
the risk of serious damage to the gas control. The Rheem warranty does not
cover damage of any nature resulting from failure to observe this precaution.
Refer to rating label for gas type and pressure.
Caution: Care is necessary when tightening fittings into the gas control. The
gas control casting may crack if the fittings are over tightened. Cracked gas
control castings are not covered under the Rheem warranty. A damaged gas
control must be replaced.
35
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The gas pilot or burner must not be lit until the water heater is filled with
water.
Open all of the hot water taps in the house (don‟t forget the shower).
Open the cold water isolation valve fully 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.
Open the gas isolation valve fully.
Check the gas pipe work for leaks.
Test the gas supply pressure to the water heater.
Refer to “Gas Supply Pressure Testing” on page 37.
Test the burner gas pressure and adjust if required.
Refer to “Burner Gas Pressure Testing and Adjustment” on page 38.
Light the water heater.
Refer to “Lighting the Water Heater” on page 40.
Test the water heater‟s burner operation.
Refer to “Test the Water Heater after Installation” on page 42.
Replace the access cover.
Adjust the adjustable water mixing valve if required.
Refer to “Adjustable Water Mixing Valve” on page 7.
Warning: Upon completion of the installation and commissioning of the
water heater, leave this guide with the householder or responsible officer.
DO NOT leave this guide inside of the cover of the water heater, as it may
interfere with the safe operation of the water heater or ignite when the water
heater is turned on.
Explain to the householder or a responsible officer the functions and operation
of the water heater.
36
COMMISSIONING
GAS INLET PRESSURE
IMPORTANT – CHECK the gas supply pressure at the inlet to the water heater
with the water heater and all other gas burning appliances in the premises
operating (burners alight).
The minimum gas supply pressure for Natural Gas is 1.13 kPa.
If this minimum cannot be achieved, it may indicate the meter or the gas line to
the water heater is undersized. It is important to ensure that an adequate gas
supply pressure is available to the water heater when other gas burning
appliances, on the same gas supply, are operating.
GAS SUPPLY PRESSURE TESTING
To check and adjust the gas supply pressure to the water heater:
1.
Ensure all other gas appliances in the premises are operating (burners
alight).
2.
Remove the access cover.
3.
Close down the gas control (refer to “Close Down Procedure” on page 43)
and close the gas isolation valve to the water heater.
4.
Remove the screw from the inlet pressure test point on the left hand side
of the gas control and attach the manometer hose to the test point (refer to
the gas control diagram on page 38 for location).
5.
Open the gas isolation valve fully.
6.
Light the water heater and ensure the burner is operating (refer to
“Lighting the Water Heater” on page 40).
7.
Take the manometer reading (burner must be operating).
The supply pressure must be above the minimum rating.
8.
Close down the gas control (refer to “Close Down Procedure” on page 43)
and close the gas isolation valve to the water heater.
9.
Remove the manometer hose from the inlet pressure test point and
replace test point screw.
10. Open the gas isolation valve fully.
11. Check the gas inlet pressure test point for leaks.
12. If the gas inlet pressure is correct, then check the burner gas pressure of
the water heater. Refer to “Burner Gas Pressure Testing And Adjustment”
on page 38.
13. If the minimum gas pressure cannot be obtained, check the size of the gas
pipe to the water heater or if adjustment to the main gas supply regulator
is required, then contact your local Gas Authority.
37
COMMISSIONING
BURNER GAS PRESSURE TESTING AND ADJUSTMENT
The burner gas pressure must be checked and adjusted (if required) as part of
the commissioning procedure. Refer to Gas Details in the table on page 31 or
check the rating label of the water heater for the burner test point pressure with
the burner operating.
To check and adjust the burner gas pressure of the water heater:
1.
Remove the access cover.
2.
Close down the gas control (refer to “Close Down Procedure” on page 43)
and close the gas isolation valve to the water heater.
3.
Using a small flat
bladed screwdriver,
lever and remove the
black plastic cover
surrounding
the
burner pressure test
point on gas control.
4.
Remove the screw
from
the
burner
pressure test point
on the right side of
the gas control and
attach
the
manometer hose to
the test point.
gas knob
(pilot, burner & off)
burner gas pressure
adjustment screw
burner gas
pressure test
point
gas inlet
port
plastic cover
inlet gas
pressure
test point
pilot flame
adjustment screw
gas control (shown with temperature dial removed)
5.
Open the gas isolation valve fully.
6.
Light the water heater and ensure the burner is operating (refer to
“Lighting the Water Heater” on page 40).
7.
Take the manometer reading (burner must be operating).
The burner gas pressure should be:
1.0 kPa (±5%) for this natural gas model.
If adjustment is not required, proceed to step 9.
If adjustment is required, proceed to step 8.
38
COMMISSIONING
8.
Natural gas model: Remove the temperature dial from the front of the gas
control by using a small flat bladed screwdriver to carefully lever the dial
and pull away from the gas control.
Using a small flat bladed screwdriver, rotate the burner pressure
adjustment screw (P.R.ADJ) clockwise to increase the burner pressure or
anticlockwise to decrease the burner pressure until the manometer reads
1.0 kPa.
After adjusting the burner gas pressure refit the temperature dial.
Note: If the test point pressure cannot be adjusted to within 5% of the
specified value for a natural gas model, complete this procedure and
phone Rheem Service or their nearest Accredited Service Agent to
arrange for an inspection.
9.
Close down the gas control (refer to “Close Down Procedure” on page 43)
and close the gas isolation valve to the water heater.
10. Remove the manometer hose from the burner pressure test point and
replace test point screw.
11. Open the gas isolation valve fully.
12. Light the water heater and ensure the burner is operating (refer to
“Lighting the Water Heater” on page 40).
13. Check the burner pressure test point for leaks.
14. Replace the black plastic cover surrounding the burner pressure test point
on gas control by pushing back into position.
15. Replace the access cover.
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:
Shut down the gas control (refer to “Close Down Procedure” on page 43).
Close the gas isolation valve at the inlet to the gas control.
Close the cold water isolation valve at the inlet to the water heater.
39
LIGHTING THE WATER HEATER
FOR YOUR SAFETY READ BEFORE LIGHTING
Warning: This gas water heater is designed to operate reliably and safely
as long as the operating instructions are followed exactly. You must comply
with these lighting instructions at every stage.
Make sure the water heater is filled with water and the water supply is on,
otherwise serious damage to the stainless steel cylinder and plastic
components may occur.
The installer must check all gas connections for leaks, gas supply pressure and
test point pressure (refer rating label). Remove the access cover at the front of
the water heater to access the gas control (thermostat).
Note: AS 3498 requires that a water heater provides the means to inhibit the
growth of Legionella bacteria in potable water. This water heater can satisfy
this AS 3498 requirement provided it is operating and the thermostat setting is
60°C or higher, including when it is used as an in-series booster water heater
for a solar water heater.
SAFETY INFORMATION
A.
This water heater is equipped with an igniter button which lights the pilot.
When lighting the pilot follow these instructions exactly.
B.
Before lighting ensure there is no smell of gas around or in the vicinity of
the water heater and the burner opening. Be sure to smell next to ground
level as some gases can settle there.
C.
What to do if you smell gas.
Do not try to light the water heater.
If the gas smell is throughout the area, turn the gas control knob clockwise
to the “” (off) position and then turn off the isolation valve on the gas line
to the water heater. Leave the area and call Rheem Service or a qualified
service technician.
D.
Use only your hand to turn the gas control knob, never use tools. If the
control knob will not turn by hand, don‟t try to repair it, call a qualified
service technician. Force or attempted repair may cause a fire or
explosion.
E.
Do not attempt to operate this water heater if it has been damaged. Call a
qualified service technician.
40
LIGHTING THE WATER HEATER
LIGHTING INSTRUCTIONS
Using the gas control light the water heater as follows:
1.
Stop, read the “Safety Information” on page 40.
2.
Remove the access cover.
3.
Depress the gas knob slightly and
turn fully clockwise so the white dot
“” (off position) faces the front,
aligning with gas knob position
indicator.
4.
Wait five (5) minutes so any build
up of unburnt gas can escape. If
you then smell gas, stop and follow
“C” in the “Safety Information” on
page 40. If you do not smell gas,
proceed to step 5.
5.
Depress the gas knob slightly and
turn anticlockwise so the red star
“ ” (pilot position) faces the front,
aligning with gas knob position
indicator.
6.
gas control
Depress the gas knob fully (until the red star disappears below the
housing) and after twenty (20) seconds, whilst keeping the GAS KNOB
depressed, repeatedly press the igniter button (for up to forty
(40) seconds) until the pilot flame ignites. The igniter is a red button
located below and to the right of the gas control.
Warning: Keep your face clear of the combustion chamber opening
while pressing the igniter.
Note: It is not possible to depress the gas knob fully if the gas control has
activated its safety shut-off feature. In this case, wait five (5) minutes for
the gas control to reset (this allows for any unburnt gas to escape).
7.
Keep the gas knob depressed for a further twenty (20) seconds and then
release.
8.
Depress the gas knob slightly and turn it anticlockwise so the red line
“l” (ignition position) faces the front, aligning with gas knob position
indicator, and hold there for five (5) seconds.
9.
Release the gas knob (the gas knob will automatically turn to the red flame
“ ” (on) position), and listen for the burner noise.
41
LIGHTING THE WATER HEATER
10. If the burner fails to light, depress the gas knob slightly and turn it to the
white dot “” (off) position. Wait five (5) minutes for any unburnt gas to
escape and then begin again at step 5.
Warning: Failure to wait five (5) minutes may result in a fire or
dangerous situation.
11. When the burner remains alight with the gas knob released, turn the
temperature dial so the setting of mid way between „3‟ and „4‟ is at the top
of the dial, aligning with temperature dial position indicator. This is the
recommended setting and will give a water temperature of about 60°C.
12. Turn the temperature dial past this position to a higher number setting if a
higher water temperature is required.
13. Replace the access cover.
The main burner will now automatically ignite when heating is required and
extinguish when the water has been heated to the set temperature. If the main
burner does not light at the selected setting, the water may already be at the
selected temperature.
Note: Never press the igniter button while the top knob is in other than the red
star “ ” (pilot) position (faces the front).
TEST THE WATER HEATER AFTER INSTALLATION
The operation of the water heater must be thoroughly checked by the installer
on completion of the installation.
The pilot flame should burn with a small blue flame. A luminous yellow or
„floating‟ flame is not acceptable.
The burner flame must light smoothly and quickly from the pilot flame, and
must go out quietly and completely.
The main burner flame must be stable, although slight lifting at the front
edge of the burner is acceptable when the burner is cold.
The main burner flame should be blue, with a clearly defined inner cone luminous yellow or "floating" flames are not acceptable.
Check the test point pressure and compare with the rating label. Refer to
“Gas Supply Pressure Testing” and “Burner Gas Pressure Testing and
Adjustment” on pages 37 and 38. If the test point pressure cannot be
adjusted to within 5% of the specified value, refer to Rheem Service or their
nearest Accredited Service Agent.
If unable to get the water heater working properly, contact Rheem Service
or their nearest Accredited Service Agent.
When satisfied everything is working properly instruct the user in the correct
method of operation.
42
LIGHTING THE WATER HEATER
CLOSE DOWN PROCEDURE
1.
Remove the access cover.
2.
Depress the gas knob slightly and
turn it clockwise so the red star “ ”
(pilot position) faces the front,
aligning with gas knob position
indicator.
This setting will leave the pilot
flame alight, however the main
burner will not be able to light.
To shut down the gas control
completely, proceed to step 3.
Note: To reinstate the burner (from
the red star “ ” (pilot) position):
gas control
Depress the gas knob slightly and turn it anticlockwise so the red line
“l” (ignition position) faces the front, aligning with gas knob position
indicator, and hold there for 5 seconds.
Release the gas knob (the gas knob will automatically turn to the red
flame “ ” (on) position) and the burner will ignite when heating is
required and extinguish when the water in the storage cylinder has
been heated to the set temperature.
If the main burner does not light at the selected setting, the water may
already be at the selected temperature.
3.
Depress the gas knob slightly and turn it to the white dot “” (off) position
(faces the front), aligning with gas knob position indicator.
This setting shuts the gas control down completely.
Note: To relight the water heater, follow the “Lighting Instructions” on
page 41.
4.
Replace the access cover.
Note: When turned back on from the red star “ ” (pilot) position or white dot
“” (off) position, the water heater may take up to an hour to reheat if the water
has lost temperature.
43
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 39).
Close all hot water taps.
Operate the relief valve easing lever - do not let the lever snap back or you
will damage the valve seat.
Operating the easing 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 easing lever again.
This will let air into the water heater and allow the water to drain through the
hose.
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45
RHEEM GAS DOMESTIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
RHEEM STELLAR STAINLESS STEEL 8A0330 GAS MODEL
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 September 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.
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).
46
RHEEM GAS DOMESTIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
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 gas 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 the Rheem water heater literature, any resultant fault will not be covered by the Rheem
warranty.
3. WHAT IS COVERED BY THE RHEEM WARRANTY
FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT
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:
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
Rheem Stellar Stainless Steel gas model
All components
(all installations)
Year 1
Repair and/or replacement of the faulty
component, free of charge, including labour.
The cylinder
(if the water heater is
installed in a singlefamily domestic dwelling)
Years 2 to 10
Replacement cylinder free of charge.
Installation and repair labour costs are the
responsibility of the owner.
47
RHEEM GAS DOMESTIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
RHEEM STELLAR STAINLESS STEEL 8A0330 GAS MODEL
4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY
4.1 To be entitled to make a claim under this warranty you need to:
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.
4.2 You are not entitled to make a claim under this warranty if your water heater:
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
5.1 If you wish to make a claim under this warranty, you need to:
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.
5.2 Any expenses incurred in the making of a claim under this warranty will be borne by you.
6. THE AUSTRALIAN CONSUMER LAW
6.1 Our goods come with guarantees that cannot be excluded under 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.
6.2 The Rheem warranty (set out above) is in addition to any rights and remedies that you may have
under the Australian Consumer Law.
RHEEM AUSTRALIA PTY LTD, A.B.N. 21 098 823 511, www.rheem.com.au
For Service Telephone 131 031 AUSTRALIA
Revision Date: 2013 September
AQ0901063-A
48