AquaMAX SG165 Series Technical Document

This solar water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Owner’s Guide
and
Installation Instructions
Domestic Mains Pressure
Gas Boosted Solar Water Heater
SG165 to SG415 Series
Warning: Use copper pipe ONLY. Plastic pipe MUST NOT be used.
It is a requirement of a solar water heater installation that all pipe work be in copper and not plastic, due to
the effects of high water temperatures and pressures.
Warning: Important notes for plumber.
For installation requirements critical for correct operation of the solar water heater, refer to “Warning:
Important Notes for Plumber” on page 25.

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Warning: Upon completion of the installation and commissioning of the solar water heater, leave this
guide with the householder or responsible officer. DO NOT leave this guide inside the cover of the solar
control unit or gas booster, as it may interfere with the safe operation of the solar water heater or ignite when
the solar water heater is turned on.
Patents
This solar water heater may be protected by one or more patents or registered designs in the name of
Aquamax Australia Pty Ltd or Rheem Australia Pty Ltd.
Trade Marks
®Registered trademark of Aquamax Australia Pty Ltd. or Rheem Australia Pty. Ltd.
™ Trademark of Aquamax Australia Pty Ltd or Rheem Australia Pty Ltd.
Note: Every care has been taken to ensure accuracy in preparation of this publication. No liability can be
accepted for any consequences, which may arise as a result of its application.

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CONTENTS
Householder: Read the section “About Your Solar Water Heater”(pages 3 to 13). The “Installation” section
is intended for the installer but may be of interest.
ABOUT YOUR SOLAR WATER HEATER.........................................................................................................3
Model Type .................................................................................................................................................... 3
Pipe Work, Insulation & Freeze Protection.................................................................................................... 4
Turning On the Solar Water Heater............................................................................................................... 5
Shut Down Procedure.................................................................................................................................... 5
Temperature Adjustment ............................................................................................................................... 5
Other Important Information........................................................................................................................... 5
Periodic Maintenance .................................................................................................................................... 6
Water Chemistry............................................................................................................................................ 9
Troubleshooting ........................................................................................................................................... 11
Solar Monitor LED Indication....................................................................................................................... 13
INSTALLATION................................................................................................................................................14
Installation Overview.................................................................................................................................... 14
Water Supplies............................................................................................................................................. 15
INSTALLATION –COMPONENTS ............................................................................................................. 16
Solar Storage Cylinder Installation........................................................................................................... 16
Gas Booster Installation........................................................................................................................... 17
Solar Controller Kit Installation................................................................................................................. 18
Solar Collector Kit Installation.................................................................................................................. 18
INSTALLATION –PLUMBING & PLUMBING CONNECTIONS ................................................................. 20
Solar Storage Cylinder Plumbing & Plumbing Connections .................................................................... 20
Gas Booster Plumbing & Plumbing Connections .................................................................................... 22
Solar Controller Kit Plumbing & Plumbing Connections .......................................................................... 23
Solar Collector Circuit Plumbing & Plumbing Connections...................................................................... 23
General Plumbing Arrangement & Plumbing Diagrams .......................................................................... 26
Two Temperature Zones Using a Temperature Limiting Device............................................................. 26
Circulated Hot Water Flow & Return Systems......................................................................................... 28
INSTALLATION –ELECTRICAL & ELECTRICAL CONNECTIONS .......................................................... 30
COMMISSIONING....................................................................................................................................... 30
Pressure Testing...................................................................................................................................... 30
To Fill, Turn ON and Commission the Solar Water Heater...................................................................... 30
Draining the Solar Collectors....................................................................................................................... 32
Draining the Solar Storage Cylinder ............................................................................................................ 32
Dimensions and Technical Data.................................................................................................................. 34
WARRANTY.....................................................................................................................................................37

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ABOUT YOUR SOLAR WATER HEATER
Product Application
This solar 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.
Warning: This solar water heater is only intended to be operated by persons who have the experience
or the knowledge and the capabilities to do so. This solar 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 solar water heater.
Model Type
Your Aquamax®solar water heater is designed for the solar collectors to be roof mounted and the vitreous
enamel lined solar storage cylinder installed at ground or floor level, remotely from the solar collectors. The
system has 1, 2 or 3 Aquamax S solar collectors. The number of collectors required will depend upon the
installations region and collector location. For most installations, the number of solar collectors
recommended in the Aquamax literature has been proven to provide the required solar energy to meet the
average family needs. The solar storage cylinder is suitable for outdoor or indoor installation, however if the
gas booster is mounted on the solar storage cylinder, then the solar storage cylinder is suitable for outdoor
installation only. This solar water heater is not to be used as a pool heater.
The solar water heater has a level of freeze protection designed to guard the system against damage from
freeze conditions. Freeze conditions occur below 6°C. The system must be installed with the full length of the
solar hot and solar cold pipes insulated to offer protection against freeze damage (refer to “Pipe Work,
Insulation & Freeze Protection”on page 4). The solar water heater has NO WARRANTY for freeze damage if
the solar hot and solar cold pipes are not insulated in accordance with the installation instructions (refer to
“Terms of the Aquamax Warranty” on page 37). The solar water heater is not suitable for installation above
400 metres altitude and has NO WARRANTY for freeze damage if installed above 400 metres altitude.
This solar water heater is designed to be installed with an Aquamax CF20-60 or CF26-60 model continuous
flow in-series gas booster (mounted on the solar storage cylinder or installed remotely) and solar controller
kit AQ7014151. Note: CF20-60 and CF26-60 model gas boosters are gas type specific and are available in
Natural Gas (model number suffix NG i.e. CF20-60-NG) or Propane Gas (model number suffix LP i.e. CF20-
60-LP). For information relating to the function and operation of the gas booster, refer to the Owner‟s Guide
and Installation Instructions supplied with the gas booster.
Aquamax solar collectors have passed the AS/NZS 2712 requirements for resistance to hailstone damage,
so it is not normally necessary to fit a guard to a collector. Stone Guards are available which provide a level
of protection to the collectors against vandalism or accidental damage.
Model Selection Chart
The model numbers shown below apply only to the solar storage cylinder.
415 Litre
325 Litre
260 Litre
165 Litre
SG415
SG325
SG260
SG165
Note: All models can be supplied with a „Hard Water Anode‟. These models have the suffix „HWA‟ at the end of
the model number.
Legend
SG
Solar Gas (storage cylinder)
415, 325, 260, 165
Storage cylinder capacity in litres
Solar Operation
The Aquamax open circuit solar system has a vitreous enamel lined steel storage cylinder installed at ground
or floor level, remotely located from the solar collectors.
The sun‟s energy heats the water in the solar collectors which increases in temperature. When the water in
the solar collectors is hotter than the water in the solar storage cylinder, the circulator is activated. The
circulator moves the water from the solar collectors, through an insulated copper pipe to the solar storage
cylinder, whilst cooler water from the solar storage cylinder is circulated back to the solar collectors to be
heated by the suns energy.
This process continues while solar energy is available and until the water in the solar storage cylinder
reaches a temperature of 70 ~ 80°C.
Automatic safety controls are fitted to the solar water heater to provide safe and efficient operation.

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Gas Booster Operation
During periods of low solar energy (low solar gain), the gas booster will boost the water temperature
automatically to its preset outlet temperature setting (refer to “Hot Water Temperature” on page 4).
Mains Pressure Operation
This solar water heater is designed to operate at mains pressure by connecting directly to the mains water
supply. If the mains water supply pressure in your area exceeds that shown in “Mains Water Supply”on
page 15, a pressure limiting valve must be fitted. The supply pressure should be greater than 350 kPa for
true mains pressure operation to be achieved. A minimum water supply pressure of 200 kPa is required to
enable the solar circulator and solar circuit system to operate effectively.
Hot Water Temperature
The solar control unit will circulate water through the solar collectors until a temperature of 70 ~ 80°C is
reached in the solar storage cylinder. During periods of low solar energy gain, the gas booster will boost the
water temperature automatically to its preset outlet temperature setting which must be set by a qualified
person to a minimum of 70°C (Aquamax CF20-60 and CF26-60 model continuous flow in-series gas
boosters have a factory setting of 60°C).
Refer to “Temperature Adjustment” on page 5.
Warning: The preset outlet temperature setting of the gas booster cannot be adjusted by the
householder. This setting can only be adjusted by a qualified person.
High Hot Water Temperature Increases the Risk of Scald Injury
Warning: This solar water heater can deliver water at temperatures which can cause scalding. Always
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. Aquamax recommends monthly temperature
checks to ensure the appropriate temperature is maintained within the solar water heater.
Aquamax recommends, and it may also be required by regulations, that a secondary device such as an
approved temperature limiting device or anti-scald water shut off valve be fitted into the hot water pipe work
to the bathroom and ensuite(s) if persons living in the house require additional safety protection from
potential scalding. This will keep the hot water supply temperature to the bathroom(s) and ensuite(s) below
50°C which will reduce the risk of scald injury whilst still allowing hotter water (70°C+) to the kitchen and
laundry.
For new hot water installations, all sanitary outlet fixtures used primarily for personal hygiene purpose must
deliver hot water not exceeding 50°C. This temperature limit is not mandatory for kitchen sinks and laundry
tubs.
To minimise scalding, especially for those people in high scald risk categories i.e. young children, people
with potentially incapacitating medical conditions, elderly people etc, this solar water heater must be installed
in accordance with AS/NZS 3500.4.
For early childhood centres, primary and secondary schools, nursing homes or similar facilities for young,
aged, sick or disabled persons, please consult your local health authority for the correct temperature setting.
Pipe Work, Insulation & Freeze Protection
The solar hot and solar cold pipe work between the solar storage cylinder and the solar collectors and the
pipe work between this solar water heater and a temperature limiting device, or this solar water heater and a
hot water outlet if a temperature limiting device is not installed MUST BE of copper. Plastic pipe MUST NOT
be used, as it will not withstand the temperature and pressure of the water generated by the solar collectors
under certain conditions. All compression fittings must use brass or copper olives.
The system has a level of freeze protection designed to guard the system against damage from freeze
conditions. Freeze conditions occur below 6°C. The full length of the solar hot and solar cold pipes
MUST BE insulated in accordance with these installation instructions.
The system has NO WARRANTY for freeze damage when installed above 400 metres altitude or if the solar
hot and solar cold pipes are not insulated in accordance with the installation instructions (refer to “Terms of
the Aquamax Warranty”on page 37).
The anti freeze control is designed to recirculate a small amount of water from the solar storage cylinder
through the solar pipe work and solar collectors during periods of low temperatures. This is to prevent the
water inside the pipe work and collectors from freezing.

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It is essential the electrical circuit to the solar control unit is continually turned on if there is a risk of freezing.
The Aquamax warranty does not cover damage caused by freeze conditions when the electrical circuit or
electrical supply to the solar control unit is turned off or interrupted.
Warning: If it is necessary to switch the power off to the solar control unit and there is a risk of freezing,
then it is necessary to have your plumber drain the solar collectors and solar flow and return pipe work.
Turning On the Solar Water Heater
To turn on the solar water heater:
1. Fully open the cold water isolation valve at the cold water inlet to the solar storage cylinder.
2. If maintenance has been conducted on the solar collectors or solar pipe work and air has entered the
system, or if the collectors and solar hot and solar cold pipes have been drained, it will be necessary to
purge the collector circuit of air which would otherwise prevent the solar water heater from operating
(refer to “Purging the Solar Collectors” on page 9). Note: Air trapped in the system can prevent solar
gain from occurring and cause the system to operate on the gas booster only.
3. Switch on the electrical supply at the power outlet to the solar control unit. Note: The power outlet must
be switched on for the solar control unit to operate and for solar gain to be achieved. The solar control
unit also provides additional freeze protection when energised.
4. Turn on the gas supply to the gas booster at the gas booster‟s gas isolation valve.
5. Switch on the electrical supply at the power outlet to the gas booster.
Shut Down Procedure
If it is necessary to turn off the solar water heater:
1. Turn off the gas supply to the gas booster at the gas booster‟s gas isolation valve.
2. Switch off the electrical supply at the power outlet to the gas booster.
3. Switch off the electrical supply at the power outlet to the solar control unit. Note: The Aquamax warranty
does not cover damage caused by freeze conditions when the electrical circuit or electrical supply to the
solar control unit is turned off or interrupted. If there is a risk of freezing conditions, then it is necessary
to drain the solar collectors and solar flow and return pipe work (refer to “Pipe Work, Insulation & Freeze
Protection”on page 4).
4. Close the cold water isolation valve at the cold water inlet to the solar storage cylinder.
Temperature Adjustment
The solar control unit will circulate water through the solar collectors until a temperature of 70 ~ 80°C is
reached in the solar storage cylinder. This temperature setting is non adjustable.
During periods of low solar energy gain, the gas booster will boost the water temperature automatically to its
preset outlet temperature setting which must be set by a qualified person to a minimum of 70°C (Aquamax
CF20-60 and CF26-60 model continuous flow in-series gas boosters have a factory setting of 60°C).
AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in
potable water. As this solar water heater is installed with an in-series continuous flow gas booster, then this
requirement can be satisfied provided the gas booster is energised, its preset outlet temperature setting is
70°C or higher and a remote temperature controller is not used.
Warning: The preset outlet temperature setting of the gas booster cannot be adjusted by the
householder. This setting can only be adjusted by a qualified person.
Warning: Temperature controllers must not be fitted to the gas booster because water at a temperature
much higher than the temperature controllers setting can be delivered.
Other Important Information
Going Away?
If you plan to be away from home we suggest you leave the solar water heater switched on. It is not
necessary to switch off the electrical supply to the solar control unit or gas booster.
If the system is not to be used for a period in excess of 2 weeks it is recommended that the solar collectors
be covered.

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If it is necessary to turn off the solar water heater for any reason, follow the “Shut Down Procedure” on page
5.
Note: When switched back on, the solar water heater will take some time to reheat the water by solar gain.
The time to reheat the water in the solar storage cylinder will depend upon time of year, time of day and
prevailing weather conditions; however, the gas booster will provide hot water (or boost the temperature of
the delivered water) until the solar system hot water temperature is adequate.
Safety
This solar water heater is supplied with temperature sensors and a combination pressure temperature relief
valve. These devices must not be tampered with or removed. The solar water heater must not be operated
unless each of these devices are fitted and are in working order.
The Aquamax 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.
Warning: For continued safety of this solar water heater, all components must be installed, operated and
maintained in accordance with all Owner’s Guides and Installation Instructions supplied with the solar water
heater. These instructions must be read in conjunction with all other instructions affixed to the appliance.
Warning: This solar water heater uses 240 V AC electrical power for operation of the solar control unit
and gas booster. The removal of the solar control unit or gas booster cover will expose 240 V wiring. Covers
must only be removed by a qualified person.
Warning: The solar control unit and gas booster power leads must be plugged into weatherproof
electrical outlets if installed outdoors. Take care not to touch the power plug with wet hands.
Warning: Care should be taken not to touch the pipe work connecting the solar storage cylinder and the
solar collectors. Very high temperature hot water can be generated by the solar collectors under certain
conditions and pipe work from the solar collectors to the solar storage cylinder can become very hot.
Warning: If the power supply cord or plug to the solar control unit or gas booster 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 Aquamax. Phone Aquamax Service or their nearest
Accredited Service Agent to arrange for an inspection or service.
How Long Will the Water Heater Last?
The solar water heater is supported by a manufacturer‟s warranty (refer to page 37). There are a number of
factors that will affect the length of service the solar 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.
Precautions
Where damage to property can occur in the event of the solar water heater leaking, the solar 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 solar water heater must be maintained in accordance with the Owner‟s Guide and Installation
Instructions. Refer to “Periodic Maintenance”on page 6.
If this solar 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 solar water heater was 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.
Periodic Maintenance
Minor Six Monthly Maintenance
It is recommended minor maintenance be performed every six months by the dwelling occupant.
Warning: Exercise care when operating easing levers as water discharged from the solar water heater
may be of a very high temperature.
Minor maintenance actions:
1. Operate easing lever on the pressure temperature relief valve (refer to “Pressure Temperature Relief
Valve” on page 7).

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2. Operate easing lever on expansion control valve (if ECV fitted) (refer to “Expansion Control Valve” on
page 8).
3. If a safety tray is installed, check to ensure the safety tray drain pipe is not blocked.
4. Clean solar collector glass if required (refer to “Cleaning the Solar Collector Glass” on page 8).
Major Five Year Service
It is recommended a major five year service be conducted on the solar water heater including the gas
booster (for gas booster major five year service actions, refer to the Owner‟s Guide and Installation
Instructions supplied with the gas booster).
Servicing must be performed by a qualified person. Phone Aquamax Service or their nearest Accredited
Service Agent.
Note: The five year service and routine replacement of any components, such as the anode and relief
valves, are not included in the Aquamax warranty. A charge will be made for this work.
Solar water heater major five year service actions:
1. Replace pressure temperature relief valve.
2. Inspect and flush expansion control valve (if fitted) and replace expansion control valve if required.
3. 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” on page 8).
4. Check the solar control unit for correct operation.
5. Clean solar collector glass if required (refer to “Cleaning the Solar Collector Glass” on page 8).
6. Flush solar collectors (refer to “Flushing the Solar Collectors” on page 8).
7. Visually check system for any potential problems.
8. Inspect all plumbing and electrical connections.
9. If a safety tray is installed, check to ensure the safety tray drain pipe is not blocked.
Note: When switched back on, the solar water heater will take some time to reheat the water by solar gain.
The time to reheat the water in the solar storage cylinder will depend upon time of year, time of day and
prevailing weather conditions; however, the gas booster will provide hot water (or boost the temperature of
the delivered water) until the solar system hot water temperature is adequate.
Pressure Temperature Relief Valve (PTR Valve)
The PTR valve is near the top of the solar storage cylinder and is essential for safe operation. It is possible
for the PTR 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 PTR valve and its drain line may indicate a problem
with the solar water heater (refer to “Pressure Temperature Relief Valve Running” on
page 12).
Warning: Never block the outlet of the PTR valve or its drain line for any reason.
Operate the easing lever on the PTR valve once every six months. It is very important
you raise and lower the lever gently.
Warning: Exercise care when operating easing leaver as water discharge from the solar water heater
may be of a very high temperature.
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.
Danger:Failure to perform this procedure may result in the solar storage cylinder failing, or under certain
circumstances, exploding.
If water does not flow freely from the drain line when the lever is lifted, then the solar water heater must be
checked. Phone Aquamax Service or their nearest Accredited Service Agent to arrange for an inspection.
The pressure temperature 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 Chemistry” on page 9).

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Expansion Control Valve (ECV)
In many areas, including South Australia, Western Australia and scaling water areas, an ECV is fitted to the
cold water supply line to the solar water heater (refer to the “Cold Water Supply Plumbing Arrangement”
diagram on page 21). The ECV may discharge a small quantity of water from its drain line during the heating
period instead of the PTR valve on the solar 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 (refer to “Water
Chemistry” on page 9).
Anode
The anode installed in your solar storage cylinder has been designed to slowly dissipate whilst protecting the
solar storage cylinder. If the solar water heater is not used for two (2) weeks or more, a quantity of hydrogen
gas, which is highly flammable, may accumulate in the solar water heater. To dissipate this gas safely, it is
recommended that a hot tap be turned on for several minutes or until discharge of gas ceases. Use a sink,
basin, or bath outlet, but not a dishwasher, clothes washer or other appliance. During this procedure, there
must be no smoking, open flame, or any electrical appliances operating nearby. If hydrogen is discharged
through the tap, it will probably make an unusual sound similar to air escaping.
The life of the solar storage cylinder may be extended by arranging a qualified person to periodically inspect
the anode and replace if required. If the anode is not replaced during a five year service (refer to “Major Five
Year Service” on page 7) then the maximum time after installation when the anode should be replaced for
this solar 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.
Cleaning the Solar Collector Glass
Ensure the solar collector glass is free of dust, salt spray or any other matter which may reduce the
effectiveness of the solar collectors. If the solar collector glass is dirty, the collectors can be hosed down with
fresh water or, if the solar collectors are accessible, wash the collector glass with fresh water and a soft
brush. Do not use cleaning agents. Note: The collector glass should only be hosed down or cleaned when
the solar collectors are cool (early morning is the best time).
Have any trees trimmed which may shade the solar collectors.
Flushing the Solar Collectors
It may be necessary to flush the solar collectors if there is sediment in the water supply. It is recommended
that the solar collectors are flushed every five years. This will assist in keeping the solar collectors, solar cold
pipe and solar hot pipe clear of sediment (refer to “Major Five Year Service” on page 7). The following
procedure should be performed in the morning, within three hours of sunrise, when the water temperature
inside the solar collectors is lowest.
To flush the solar collectors:
1. Open a hot water tap and allow water to run for five (5) minutes prior to flushing solar collectors.
2. Close the hot tap.
3. Wait a further five (5) minutes before attempting to flush the solar collectors. This will assist in the
transfer of any high temperature water in the solar collectors to the solar storage cylinder.
4. Using a flat bladed screwdriver, open the bleed valve located on the solar hot water inlet (from collector)
of the solar storage cylinder (labelled “Connection for Solar Return Pipe”) by rotating the bleed valve
screw (refer to diagram in the “Purging the Solar Collectors” section on page 9). Mains pressure will
force water to flow from the solar storage cylinder, through the pipe work and solar collectors, then out
through the bleed valve thereby flushing the collectors. This is evidenced by water spurting from the
drain line connected to the bleed valve. Allow water to flow from the bleed valve drain line for five (5)
minutes.
Warning: Exercise care to avoid any splashing of water, as water discharged from the solar
collectors may be of a very high temperature.
5. Using a flat bladed screwdriver, close the bleed valve.

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Purging the Solar Collectors
It is necessary to purge air from the solar collector circuit:
After installation.
When the solar system is to be turned on and the solar collectors and solar hot and solar cold pipes
have been drained.
After maintenance has been conducted on the solar collectors or pipe work and air has entered the
system.
If the circulator appears not to be circulating water around the system.
The following procedure should be performed in the morning, within three hours of sunrise, when the water
temperature inside the solar collectors is lowest:
To purge air from the collector circuit:
1. Ensure solar storage cylinder is full of water and all premises
hot taps are turned off.
2. Using a flat bladed screwdriver, rotate the bleed valve screw to
the open position. The bleed valve is located on the solar hot
water inlet (from collector) of the solar storage cylinder (labelled
“Connection for Solar Return Pipe”). Refer to diagram shown
opposite.
Mains pressure will force water to flow from the solar storage
cylinder, through the pipe work and solar collectors, expelling
any trapped air from the collector circuit through the bleed
valve. This is evidenced by water and air spurting from the drain
line connected to the bleed valve.
Warning: Exercise care to avoid any splashing of water, as
water discharged from the solar collectors may be of a very high
temperature.
3. Using a flat bladed screwdriver, close bleed valve when all air
has been purged by rotating bleed valve. Note: when air is
purged water will run freely without spluttering.
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 the solar storage cylinder and pressure temperature 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 Aquamax warranty to apply.
Water Chemistry
This solar water heater must be installed in accordance with this advice to be covered by the
Aquamax warranty.
This solar 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 solar 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 solar water heater should only be
connected to a water supply which complies with these guidelines for the Aquamax warranty to apply.
Total Dissolved Solids (TDS)
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.
The Aquamax warranty will not cover resultant faults to the solar storage cylinder if this solar water heater is
connected at anytime to a water supply where the TDS content of the water exceeds 600 mg/L. In locations
where the water supply TDS exceeds 600 mg/Litre, the magnesium alloy anode (supplied as standard, cap

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colour code „Black‟) should be replaced with an aluminium alloy anode (cap colour code „Blue‟). For more
information refer to “Water Chemistry & Anode Type” on page 10.
In locations where TDS approaches 600 mg/L, e.g. due to sediment, we strongly recommend fitting an
appropriate filter to ensure water entering or in the solar water heater does not exceed this level at any time
i.e. due to sediment build up.
Water Chemistry & Anode Type
Aquamax solar water heaters are designed to suit the water conditions of most metropolitan supplies, where
the Total Dissolved Solids (TDS) content of the supply is less than 600 mg/Litre. For use in regions where
the water supply TDS exceeds 600 mg/Litre, the magnesium alloy anode (supplied as standard, cap colour
code „Black‟) may become excessively reactive. For safety reasons and the longevity of the anode, the
magnesium anode should be replaced with an aluminium alloy anode (cap colour code „Blue‟) available from
your Aquamax supplier. Anode replacement must be carried out by an Aquamax accredited service agent.
Warning: If the water supply has a TDS 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 solar storage cylinder during long periods of no use.
If the solar water heater has not been used for two or more weeks, follow the procedure detailed in the
“Anode” section on page 8 for safe dissipation of the hydrogen gas build up inside the solar storage cylinder.
It must be noted that in areas where the TDS exceeds 600 mg/Litre, the Aquamax warranty will not cover
resultant faults on components including the solar storage cylinder that fail due to the bad water conditions
even though an aluminium anode is fitted. Refer to “Water Chemistry Levels Affecting Warranty” on page 10
for water chemistry levels and components affected.
The life of the solar water heater will also be extended by periodic inspection of the anode and replacement if
necessary (refer to “Periodic Maintenance” on page 6 and “Anode” on page 8).
Water Chemistry Levels Affecting Warranty
The Aquamax warranty of this solar water heater will not cover resultant faults on solar collectors if the water
supply has a saturation index < –1.0 or > 0.8 (refer to “Scaling Water & Saturation Index”on page 10).
The Aquamax warranty of this solar water heater will not cover resultant faults on components including the
solar storage cylinder where water stored in the storage cylinder exceeds at any time any of the following
levels:
Total dissolved solids
600 mg/Litre
Total hardness
200 mg/Litre
Chloride
300 mg/Litre
Magnesium
10 mg/Litre
pH
9.5 and not less than 6.5
Calcium
20 mg/Litre
Sodium
150 mg/Litre
Iron
1 mg/Litre
Scaling Water & Saturation Index
The saturation index is used as a measure of water‟s corrosive or scaling properties.
In a corrosive water supply, 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 Aquamax warranty of this solar water heater will not
cover resultant faults on a solar collector(s).
Where the saturation index exceeds +0.80, the water is very scaling and the Aquamax warranty of this solar
water heater will not cover resultant faults on a solar collector(s).
Scaling water that contains levels of calcium carbonate (total hardness in excess of 200 mg/Litre at any time
when the solar water heater is operating) can block and prevent the pressure & temperature relief valve from
operating resulting in damage to the solar storage cylinder and solar water heater components.
An expansion control valve is mandatory in SA & WA and must be fitted in ALL areas with scaling water to
assist in preventing blockage of the pressure and temperature relief valve.
Danger: Failure to install an expansion control valve where scaling water conditions occur may result in
the solar storage cylinder failing, or under certain circumstances, exploding.
To avoid damage to the solar storage cylinder and solar water heater components, Aquamax strongly
recommends scaling water be treated before entering the solar water heater by fitting appropriate water

11
filters/conditioners etc to reduce the saturation index and total hardness of the water. Refer to your Local
Water Authority for information on water in your area. A build up of white sediment on hot water taps or
shower roses can be indicative of scaling water. Contact Aquamax if this condition is observed.
Spring, Dam, Bore & River Water Supplies
The Aquamax warranty of this solar water heater will not cover resultant faults on components including the
solar storage cylinder due to the effects of sludge and/or sediment as a result of connection to a water supply
from silted or treated sources i.e. springs, dams, bores, rivers or towns supplied from a bore.
Troubleshooting
Check the items below before making a service call. If the solar water heater is within the warranty period
you will be charged for attending to any condition or fault that is not related to manufacture or failure of a
part. For warranty terms and conditions (refer to “Warranty” on page 37).
Not Enough Hot Water (Or No Hot Water)
Insufficient sunlight
Insufficient sunlight due to cloudy weather during hotter months or low solar energy contribution in
colder months may mean the gas booster operates more often.
Is the solar water heaters electricity supply switched on?
Check to ensure the solar control and gas booster power supply cord is plugged in and the power
outlets are switched on. Is power available in the house? Try using another electrical appliance.
Solar Monitor green LED is off or red LED is flashing
If the Solar Monitor green LED (marked „SOLAR‟) is off, or the red
LED (marked „ATTENTION‟) is flashing, there may be a problem with
the solar water heater operation and solar gain is not being
achieved. This will result in the gas booster operating to provide all of
the hot water required. Refer to “Solar Monitor LED Indication” on
page 13.
If the Solar Monitor green LED is off, or the red LED is flashing, switch off the electrical supply at the
power outlet to the solar control unit for five (5) seconds and then switch back on again.
If the green LED remains off or the red LED recommences to flash, count the number of flashes and
phone Aquamax Service or their nearest Accredited Service Agent to arrange for an inspection.
Solar Collectors shaded
If trees or other objects shade the solar collectors or if the collector glass is dirty, the effectiveness of the
solar collectors will be greatly reduced. Have the trees trimmed or the solar collectors relocated if the
obstruction is permanent. Clean the collector glass if required (refer to “Cleaning the Solar Collector
Glass” on page 8).
Solar Collector area is too small
For most installations, the number of solar collectors recommended in the Aquamax literature has been
proven to provide the required solar energy to meet the average family needs. However, in some
circumstances if only one solar collector has been installed, it may be necessary to install a second solar
collector.
Air in collectors (no solar gain)
It is possible under certain conditions, such as when the pipe work has been opened, that air may
become trapped in the solar collectors. This will prevent the circulator from moving water around the
solar collector circuit. The air will need to be purged from the solar collectors (refer to “Purging the Solar
Collectors” on page 9).
Are you using more hot water than you think?
Is one outlet (especially the shower) using more hot water than you think? Very often the amount of hot
water used is not realised, particularly when showering. Carefully review the family‟s hot water usage.
As you have installed an energy saving Solar System, energy saving should also be practised in the
home. Adjust your water usage pattern to take advantage of maximum solar gains. Have your plumber
install a flow control valve to each shower outlet to reduce water usage.
Pressure temperature relief valve running
Is the PTR valve discharging too much water? Refer to “Pressure Temperature Relief Valve Running”on
page 12.

12
Pressure Temperature Relief Valve Running
Normal Operation
It is normal and desirable for the PTR valve to allow a small quantity of water to escape during the
heating cycle, however there may be a problem if the valve continuously dribbles more than a bucket full
of water in a normal 24 hour cycle.
Continuous dribble
Try gently raising the easing lever on the relief valve for a few seconds (refer to “Pressure Temperature
Relief Valve” on page 7). This may dislodge a small particle of foreign matter and clear the fault.
Release the lever gently.
Steady flows for long periods (often at night)
This may indicate the mains water pressure sometimes rises above the designed pressure of the solar
water heater. Ask your installing plumber to fit a pressure limiting valve.
Warning: Never use reconditioned relief valves and never replace the relief valve with one of a
higher pressure rating.
Heavy flows of hot water until the solar water heater is cold - then stops until water reheats
The solar control unit must be switched off at the power outlet. Phone Aquamax Service or their nearest
Accredited Service Agent to arrange for an inspection.
Expansion Control Valve Running
If an expansion control valve is fitted in the cold water line to the solar water heater, it may discharge a small
quantity of water instead of the solar water heaters pressure temperature relief valve. This has the benefit of
conserving energy as the discharged water is cooler (refer to the “Cold Water Supply Plumbing
Arrangement” diagram on page 21 for expansion control valve location).
Gas Booster Operating Too Frequently
You may find that the gas booster operates more frequently than expected. This will occur when the solar
heated water temperature is lower than the preset outlet temperature setting of the gas booster. This may be
experienced during periods of low solar energy gain or if there has been heavy hot water usage.
Collector Glass Breakage
The Aquamax warranty DOES NOT cover breakage of solar collector glass. Check to ensure your household
insurance policy covers solar collector glass breakage.
Warning: No attempt should be made to remove or replace broken solar collector glass.
The solar collector glass is not available as a replacement part. Contact Aquamax Service or their nearest
Accredited Service Agent if the solar collector requires replacement.
Noise from the Solar Collectors
This solar water heater has high performance selective surface solar collectors. When the solar storage
cylinder is full of hot water, the circulator will turn off. The water in the solar collectors will continue to gain
heat and increase in pressure when solar energy is still available.
When a hot tap is opened, this pressure is released and the high temperature water may turn to steam
creating a sudden and loud rumbling noise and even a rattling or banging noise of the collectors against the
roof cladding material. This results from the combination of the high level of solar radiation and the water in
the solar storage cylinder being at its maximum temperature and is not caused by a fault with the solar water
heater.
Higher Than Expected Gas Bills
With the installation of your new solar water heater, maximum energy savings can be achieved with careful
planning of hot water usage. Check the following points if your gas bill is higher than expected:
Is the relief valve running excessively?
Refer to “Pressure Temperature Relief Valve Running” on page 12).
Is one outlet (especially the shower) using more hot water than you think?
Refer to “Not Enough Hot Water” on page 11.

13
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 energy. Replace faulty tap washers
and have your plumber rectify any leaks.
Is the booster operating too frequently?
Refer to “Gas Booster Operating Too Frequently” on page 12.
Has there been an increase in hot water usage?
An increase in hot water usage may result in an increase in gas booster operation.
Has your gas tariff rate been increased by your energy retailer since your previous account?
Check your previous bill and compare gas rates and charges.
If you have checked all the previous troubleshooting points and still believe you need assistance,
phone Aquamax Service or their nearest Accredited Service Agent.
Solar Monitor LED Indication
A solar monitor is located on the side of the solar control unit and houses a green and a red LED (refer to
“Solar Controller Major Kit Components” diagram on page 18 for solar control unit location).
The green LED, marked „SOLAR‟, indicates the current operational mode of the solar water heater and the
red LED, marked “ATTENTION”, indicates a fault mode.
The green LED will emit either a constant glow or a series of flashes, with
a 2 second interval between each series.
The red LED will emit a series of flashes, with a 2 second interval
between each series, only if there is a particular fault condition with the
system.
Diagnostic Features of the Solar Control Unit
Flashes
Operational Mode
Solid green (remains on)
Standby mode
Green slow pulse
Standby mode (power on for less than 48 hours)
Green rapid pulse
Circulating water through collectors
3 x green
Circulating water through collectors (system power on for less than 48 hours)
no green (remains off)
Power outage or call service
Flashes
Fault Mode
Solid red (remains on)
Hot sensor temperature greater than 130°C
Red rapid pulse
Temperature rise across collectors greater than 40°C (circulator at full speed)
3 x red
Hot sensor in collector –short circuit
4 x red
Hot sensor in collector –open circuit
5 x red
Cold sensor –short circuit
6 x red
Cold sensor –open circuit
If the power supply to the solar control unit is on and the green LED is off or the red LED is flashing, this
indicates there may be a fault with the solar water heater. The red LED may emit up to six flashes in each
series of flashes.
Notes:
If the system is in standby mode with the green LED emitting either a constant glow or slow pulsing
flashes (circulator is off) and the solar storage cylinder is full of hot water, the red LED may
simultaneously emit a constant glow if solar radiation is still being received by the solar collectors. This
does not indicate a fault. The red LED will go out when the temperature in the solar collectors
decreases.
During periods of high solar radiation and the circulator activates after having been off (green LED will
emit either a rapid pulse or a series of 3 flashes), it is possible for the red LED to simultaneously emit a
rapid pulse for a period of up to ten (10) minutes. This does not indicate a fault. If the red LED continues
to emit a rapid pulse for longer than ten (10) minutes, or emits a series of flashes, count the number of
flashes and phone Aquamax or an Accredited Service Agent to arrange for an inspection.

14
INSTALLATION
Installation Overview
This solar water heater must be installed by a qualified person in accordance with the installation
instructions. The installation must comply with the requirements of AS/NZS 3500.4, AS/NZS 3000 and all
local codes and regulatory authority requirements.
This solar water heater is comprised of the following components:
Solar storage cylinder.
Gas booster.
Solar controller kit.
Solar collector kit.
If the gas booster is mounted on the solar storage cylinder (integrated gas booster), then the solar storage
cylinder is suitable for outdoor installation only.
The system is suitable for installation with one, two or three Aquamax S solar collectors. The number of
collectors required will depend upon the installations region and collector location (contact Aquamax for more
information). For most installations, the number of solar collectors recommended in the Aquamax literature
has been proven to provide the required solar energy to meet the average family needs. The solar water
heater is not suitable for installation above 400 metres altitude.
This solar water heater is not suitable for pool heating.
Important Notes
Working on roofs is and should always be considered a hazardous activity, particularly early in the
morning and late in the evening, when the roof is wet and during and after periods of rain.
All work must be carried out in accordance with Local, State and Federal Occupational Safety, Health
and Welfare Regulations. Safety requirements whilst manual lifting, working at heights and on roofs
must be adhered to.
Installers must be competently trained in:
Height Hazard Assessment.
Working at Height Procedures.
Assessment / Use / Wearing of correct height safety equipment (harnesses etc.).
All other relevant safety factors specific to the installation and maintenance work to be compliant
with suitable Occupational, Health and Safety Regulations / Codes.
All relevant permits shall be obtained from the regulatory authorities before commencing work to install
the solar water heater.
All work carried out must be performed by appropriately qualified tradespeople or be suitably supervised
for trades assistant duties.
Every care must be taken to protect and warn occupants of the building and the public from personal
injury which may occur from falling tools, roof materials, fittings or any other hazards of a general
nature.
Advise the occupants of any inconvenience which may occur due to disconnection of existing water and
electrical supplies.
The connection, attachment, integration or general association of other equipment or parts which either
directly or indirectly affect the operation or performance of this equipment could void the Aquamax
warranty.
Freeze Protection
The solar water heater has a level of freeze protection designed to guard the system against damage from
freeze conditions. Freeze conditions occur below 6°C. The full length of the solar hot and solar cold pipes
MUST BE insulated in accordance with these installation instructions (refer to “Warning: Important Notes for
Plumber” on page 25). The solar water heater has NO WARRANTY for freeze damage when installed above
400 metres altitude or if the solar hot and solar cold pipes are not insulated in accordance with the
installation instructions (refer to “Terms of the Aquamax Warranty”on page 37).

15
Hot Water Redundancy
If this solar 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 solar water heater was to become inoperable
for any reason. We recommend you provide advice to the solar water heater owner about their needs and
building backup redundancy into the hot water supply system.
Water Supplies
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 after the stop cock and before the non return valve as shown in
the “Cold Water Supply Plumbing Arrangement” diagram on page 21.
Model
SG165, SG260, SG325 & SG415
Pressure temperature relief valve setting
1000 kPa
Expansion control valve (ECV) setting *
850 kPa
Minimum mains supply pressure
200 kPa
Maximum mains supply pressure
With ECV
680 kPa
Without ECV
800 kPa
* Expansion control valve not supplied with solar water heater.
Tank Water Supply
If the solar 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 premises hot
water plumbing system, including the solar storage cylinder. Care must be taken to avoid air locks. The cold
water supply line to the solar water heater must be adequately sized and fitted with an approved full flow
gate valve or ball valve and non return valve.
If the solar water heater is supplied with water from a tank supply and a minimum water supply pressure of
200 kPa at the solar storage cylinder inlet cannot be achieved, then a pressure pump system must be
installed to ensure the minimum mains supply pressure is provided and maintained. Care must be taken to
avoid air locks. The cold water line from the supply tank should be adequately sized and fitted with an
approved full flow gate valve or ball valve and non return valve.
Water Supply Chemistry
Bad water can have a detrimental effect on solar water heater operation, components and life expectancy
and may affect warranty. Refer to “Water Chemistry” on page 9 for more information. Also refer to “Spring,
Dam, Bore & River Water Supplies” on page 11.

16
INSTALLATION –COMPONENTS
This section details the installation of the solar storage cylinder, gas booster, solar controller kit and solar
collector kit. To install the plumbing for these components refer to the “Installation – Plumbing & Plumbing
Connections” section on page 20.
Solar Storage Cylinder Installation
Solar Storage Cylinder Location
The solar storage cylinder is suitable for either outdoor or indoor installation, however if the gas booster is
mounted on the solar storage cylinder, then the solar water heater is suitable for outdoor installation only.
The solar storage cylinder should be installed close to the most frequently used outlet and its position chosen
with safety and service in mind.
Consideration must also be given to the position of the solar storage cylinder in relation to the solar
collectors. There are limitations to both the maximum length of the solar hot and solar cold pipes (refer to
“Solar Pipe Lengths” on page 24) and the maximum height between the solar storage cylinder and the solar
collectors (refer to “Maximum Height to Collectors” on page 24).
Sufficient and safe space for ease of service and access to the gas booster, solar control unit, sacrificial
anode and relief valve should be considered when locating the solar storage cylinder. The solar storage
cylinder must be installed upright in a vertical position and must be accessible without the use of a ladder or
scaffold.
You must be able to read the information on the rating plate. If possible leave headroom of one solar storage
cylinder height so the anode can be inspected and / or replaced. If adequate room is unavailable, the solar
storage cylinder must be disconnected, drained and removed to enable servicing.
It is recommended the solar storage cylinder be installed at ground or floor level and must stand vertically
upright. It is not necessary to allow for free air circulation under the base of the solar storage cylinder. For
outdoor installation, the solar storage cylinder shall be installed freestanding on a level and stable concrete
base 50 mm thick.
The top of the solar storage cylinder is to be secured to the wall using the wall bracket and fastening
hardware provided (refer to “Wall Bracket Installation” on page 16).
All packaging materials must be removed from the solar storage cylinder prior to installation. This includes
the removal of the cardboard base of the carton from the underside of the solar storage cylinder.
Do not install this solar storage cylinder in a roof space.
Note: Damage to the storage cylinder caused by incorrect installation is not covered by warranty.
Wall Bracket Installation
It is a requirement of AS 5601 and AS/NZS 5601.1 that water heater is secured to a wall. The top of the solar
storage cylinder is to be secured to a wall using the wall bracket and fastening hardware provided with the
solar storage cylinder (or other suitable fasteners). It is necessary to fix the bracket to the wall after
positioning the solar storage cylinder but prior to plumbing the water and gas connections.
To install the wall bracket:
1. Position solar storage cylinder.
2. Position wall bracket on top of solar storage cylinder and hard up
against wall.
3. Mark wall where hole is to be drilled.
4. Remove bracket and drill hole to receive M6.5 masonry anchor (or
other suitable fastener).
5. Replace wall bracket and fix to wall using M6.5 masonry anchor (or other suitable fastener).
6. Secure wall bracket to top of solar storage cylinder using two self tapping screws.
Safe Tray
Where damage to property can occur in the event of the solar storage cylinder leaking, the solar storage
cylinder 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.

17
Gas Booster Installation
Gas Booster Location
The gas booster must not be installed indoors or in a confined space. The gas booster may be remotely
located or mounted on the solar storage cylinder. If the gas booster is mounted on the solar storage cylinder,
the solar water heater is suitable for outdoor installation only.
The gas booster 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 solar water heater.
Check to ensure the gas booster is suitable for the gas type available (refer to the gas boosters rating label).
A secondary flue is not required.
The following restrictions to gas booster location are from AS 5601 or AS/NZS 5601.1 and are supplied here
as a guide. The dimensions shown in the table below are the minimum clearance distances from the flue
terminal. These clearances must be observed at all times.
Below eaves balconies and other projections
300
From an openable window, door, non mechanical air inlet, or any other opening into a building
in the direction of the flue discharge
1500
From an openable window, door, non mechanical air inlet, or any other opening into a building
measured vertically
1500
From an openable window, door, non mechanical air inlet, or any other opening into a building
measured horizontally and at right angles to the flue terminal. Refer example (a) in diagram
300
From a fence, wall or other obstruction, in the direction of the flue discharge. Refer example (b)
in diagram
500
Between the flue terminal and an external corner measured horizontally. Refer example (c) in
diagram
300
From a gas meter
1000
From an electricity meter box or fuse box
500
From a drain pipe or soil pipe
75
From any other flue terminal, cowl or combustion air intake
300
From any other combustible material
500
All dimensions in mm.

18
Mounting the Gas Booster to the Solar Storage Cylinder
A mounting bracket has been installed on the solar storage cylinder to support the gas booster. To mount an
Aquamax CF20-60 or CF26-60 model continuous flow in-series gas booster to the storage cylinder:
1. Remove two screws retaining gas booster top bracket (located on rear of gas booster) and remove
bracket.
2. Rotate bracket 180° and reaffix to gas booster using two screws previously removed in step 1.
3. Remove mounting screw loosely affixed to bottom of solar storage cylinder lower mounting bracket.
4. Hook gas booster top bracket over top of solar storage cylinder upper mounting bracket. Ensure gas
booster bracket is well seated and gas booster is level.
5. Locate centre hole in gas booster bottom bracket over corresponding hole in solar storage cylinder
lower mounting bracket and secure using screw previously removed in step 3.
Solar Controller Kit Installation
The solar controller kit contains a bleed valve / non return valve assembly and a solar control unit with
circulator, 4 way tee, preformed pipe piece and cold sensor probe. The kit also contains two insulation
pieces, installation instructions and various kit connecting components.
The bleed valve / non return valve assembly is fitted to the solar storage cylinder outlet marked “Connection
for Solar Return Pipe” and is utilised when flushing or purging air from the collector circuit (refer to “Flushing
the Solar Collectors” on page 8 and “Purging the Solar Collectors” on page 9).
The solar control unit is mounted on the
side of the solar storage cylinder and
controls system operation. The solar
control unit has a power cord which
connects to a 240 volt general purpose
outlet (refer to “Installation –Electrical
& Electrical Connections” on page 30).
The solar control unit incorporates a
circulating pump which when energised
circulates water from the solar storage
cylinder through the collector circuit and
back to the solar storage cylinder.
Refer to the installation instructions
supplied with the solar controller kit for
details on the installation and plumbing
of the solar controller kit.
Solar Collector Kit Installation
Solar Collector Location
Consideration must be given to the position of the solar
collectors in relation to the solar storage cylinder. There
are limitations to both the maximum length of the solar hot
and solar cold pipes (refer to “Solar Pipe Lengths”on
page 24) and the maximum height between the solar
storage cylinder and the solar collectors (refer to
“Maximum Height to Collectors”on page 24).
Solar collectors must be installed in a shade free position.
The surrounding vicinity should be checked for higher
buildings or trees which may cause shade at other times of
the year and for small trees which may grow and shade the
solar collectors in the future.
For optimum performance, solar collectors should be
installed facing towards the equator (i.e. north facing in the
southern hemisphere). ALWAYS CHECK ORIENTATION
WITH A COMPASS. Where this orientation is not practical,
solar collectors facing 45° from the equator will receive
approximately 4% less total solar radiation.

19
For optimum performance, inclination of solar collectors should be approximately equal to 90% of the local
latitude angle. The latitudes of some Australian cities are shown in the “Latitude of Some Australian Cities
Table” on page 19. Solar collectors may be installed at the roof angle for simplicity of installation and
appearance, but must never be flat. If the roof angle varies by 15º from the optimum angle, the solar
collectors will receive approximately 10% less total solar radiation.
The collector kit is suitable for installations with an inclination of up to 45°. Where the solar collectors are
installed at inclinations greater than 45°, a “With Pitch”frame is necessary. Refer to your local Solar
Distributor for details.
For a solar collector installation on a roof with a pitch less than 10°, a Variable Pitch frame is required. Refer
to your local Solar Distributor for details.
For an installation of collectors on a pitched roof in a cyclonic or high wind area, a suitable With Pitch frame
is required. Refer to your local Solar Distributor for details.
The installation of Aquamax S solar collectors on a suitable frame, subject to the frame‟s design criteria not
being exceeded:
is suitable for installation in geographic locations up to and within Wind Region D (With Pitch frame) or
up to and within Wind Region C (Variable Pitch frame), as defined in the Building Code of Australia,
Australian / New Zealand Standard AS/NZS 1170.2:2002 and the Australian Standard AS 4055-2006,
and
provides an acceptable method of installation where it is necessary to satisfy the requirements of the
Building Code of Australia and AS/NZS 3500.4 Clause 6.5.3.4 for high wind areas.
The installer must ensure the structural integrity of the building is not compromised by the solar water heater
installation and the roof structure is suitable to carry the full weight of the solar collector(s). If in doubt the
roof structure should be suitably strengthened. Consult a structural engineer.
Each solar collector and its fittings weighs approximately 45 kg when full of water.
The installation must comply with the requirements of AS/NZS 3500.4 and all local codes and regulatory
authority requirements.
Latitude of Some Australian Cities
Adelaide
35°S
Cairns
17°S
Hobart
42°S
Port Hedland
20°S
Alice Springs
24°S
Canberra
35°S
Mildura
34°S
Rockhampton
24°S
Brisbane
27°S
Darwin
12°S
Melbourne
38°S
Sydney
34°S
Broken Hill
31°S
Geraldton
28°S
Perth
32°S
Townsville
19°S
Refer to the installation instructions supplied with the solar collector kit for details on the installation of the
solar collector kit.
Refer to “Solar Collector Circuit Plumbing & Plumbing Connections” on page 23 for information on plumbing
the solar collector circuit.
Warning: For installation requirements critical for correct operation of the solar water heater, refer to
“Warning: Important Notes for Plumber”on page 25.