“Streamline Electric”
ELECTRIC BOOSTED
SOLAR WATER HEATER
OWNER’S MANUAL
AND
WARRANTY / INSTALLATION INFORMATION
WARNING: Plumber – Be Aware
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.
Solahart Industries Pty Ltd
ABN 45 064 945 848
This water heater must be installed and serviced by an authorised person.
Please leave this guide with the householder.
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CONTENTS
The other pages are intended for the installer but may be of interest.
About Your Water Heater............................................................................................. 5
Installation – Solar Storage Tank.............................................................................. 17
Installation – Solar Control Unit................................................................................ 24
Connections – Plumbing............................................................................................ 28
Connections – Electrical............................................................................................ 31
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INTRODUCTION
Congratulations on choosing a “STREAMLINE ELECTRIC” solar water heater. We are confident that
your purchase will provide you many years of trouble free hot water.
All over the world, the Solahart name is synonymous with quality in water heating. From humble
beginnings in the pioneering days of Western Australia, a reputation has been built up over nearly a
century.
In 1905, two enterprising plumbers formed the company known as S. W. Hart, a name that was
retained for over 70 years. Even in its early stages, S. W. Hart was involved in the manufacture of metal
products for water storage and water heating. Since 1953, S. W. Hart, now Solahart Industries Pty Ltd,
has been producing thermosyphon solar hot water systems, which is well over 40 years of hot water
experience.
Solahart is the market leader in Australia and a dominant brand throughout the world. Our network of
distributors covers over 70 countries in Europe, North America, Africa and Asia. In our home market of
Australia, we offer the widest range of thermosyphon solar water heater products, along with the
Streamline brand of active solar hot water systems and Synergy heat pump. Our product is positioned
within the hot water market as a reliable, durable product with state of the art manufacturing technology.
It is with the above in mind that we at Solahart Industries Pty Ltd are confident that your purchase of the
“STREAMLINE ELECTRIC” water heater will provide you reliable hot water with quality after sales
service back up.
Thankyou
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ABOUT YOUR WATER HEATER
MODEL TYPE
Congratulations for choosing a Solahart® water heater. Your Solahart Streamline® open circuit solar
water heater is designed for the solar collectors to be roof mounted and the solar storage tank to be
installed at ground level. The solar storage tank is suitable for either outdoor or indoor installation and
can be installed with Solahart ‘L’ solar collectors.
Although the system has a level of freeze protection, designed to guard the system from unexpected
frost conditions, the system is not recommended for installation in areas subject to frost or freeze
conditions (refer to “Freeze Protection” on page 8). Freeze conditions occur below 6°C. The system has
If this water heater is installed as a solar preheater to an in-series water heater, then the electric
booster heating unit will not be connected to a power supply and the references to the electric booster
heating unit, thermostat and manual boosting controls in this Guide will not be applicable to the
installation. For information relating to the function and operation of the in-series water heater, refer to
the Owners Guide and Installation Instructions supplied with the water heater.
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate water through the solar
collectors until a temperature of approximately 70°C is
reached.
typical maximum temperature
from solar gain and maximum
booster setting
During periods of low solar energy gain, the water temperature
can be boosted by the thermostatically controlled electric
booster heating unit. This may be operated manually or
check with your electrician. An in-series water heater will boost
the water temperature automatically when required.
minimum booster setting and
minimum recommended
stored water temperature
maximum recommended
supply temperature to
bathrooms and ensuites
To meet the requirements of the National Plumbing Standard
the temperature of the stored water must not be below 60°C.
Solahart recommends the thermostat is set at 60°C to
maximise solar contribution.
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.
TEMPERATURE ADJUSTMENT
The water heater features a tradesperson adjustable thermostat. This requires a licensed tradesperson
to make any temperature adjustments. The thermostat has a maximum temperature setting of 70°C and
a minimum temperature setting of 60°C.
We advise you have your electrician adjust the thermostat to the lowest setting which meets your
needs, especially if there are young children or elderly people in the home. Refer to “Hotter Water
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ABOUT YOUR WATER HEATER
WARNING
This water heater is not intended to be operated, adjusted or tampered with by young children or infirm
persons. Young children should be supervised to ensure they do not interfere with the water heater.
The removal of the front cover will expose 240 V wiring. It must only be removed by an authorised or
qualified person.
Care should be taken not to touch the pipe work connecting the solar storage tank and the solar
collectors. Very high temperature hot water can be generated by the solar collectors under certain
conditions and flow through the pipe work from the solar collectors to the solar storage tank.
SAFETY
This water heater is supplied with a thermostat, an over-temperature cut-out, 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.
If the power supply cord or plug to the solar control unit or the electrical conduit to the solar storage
tank is damaged, it must be replaced by an authorised person in order to avoid a hazard. The power
supply cord and plug must be replaced with a genuine replacement part available from Solahart. Phone
your nearest Solahart Dealer to arrange for an inspection.
The warranty can become void if relief valves or other safety devices are tampered with or if the
installation is not in accordance with these instructions.
TO TURN OFF THE WATER HEATER
If you plan to be away from home for a few nights, we suggest you leave the water heater switched on.
If it is necessary to turn off the water heater:
•
•
•
Switch off the electrical supply at the isolating switch to the solar storage tank.
Switch off the electrical supply at the power outlet to the solar control unit (refer to note below).
Close the cold water isolation valve at the inlet to the water heater.
Note: If there is a risk of freezing conditions, the electrical supply to the solar control unit should not be
switched off unless the solar collectors are drained, otherwise damage could result (refer to “Freeze
TO TURN ON THE WATER HEATER
•
•
Open the cold water isolation valve fully at the inlet to the water heater.
If the solar collectors and solar hot and solar cold pipes have been drained, it will be necessary to
If the electrical supply to the water heater has been switched off:
•
Switch on the electrical supply at the power outlet to the solar control unit. The power outlet must
be switched on for the solar control unit to operate and solar gain to be achieved.
•
Switch on the electrical supply at the isolating switch to the solar storage tank.
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ABOUT YOUR WATER HEATER
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
PIPE WORK AND INSULATION
The solar hot and solar cold pipe work between the solar storage tank and the solar collectors and
between the solar storage tank and in-series water heater (if one is installed) MUST BE of copper and
fully insulated with closed cell polymer insulation or similar (minimum thickness 13 mm). The insulation
must be weatherproof and UV resistant if exposed. The insulation is essential to assist in providing
freeze protection, will offer corrosion protection to a metal roof against water runoff over the copper
pipe, assist in avoiding accidental contact with the solar pipe work and also reduce pipe heat losses.
The insulation must be fitted up to the connections on both the solar collectors and the solar storage
tank, as very high temperature water can flow from the solar collectors to the solar storage tank under
certain conditions.
Plastic pipe MUST NOT be used, as it will not withstand the temperature and pressure of the water
DOES THE WATER QUALITY AFFECT THE WATER HEATER?
The water heater is suitable for most public water supplies, however some water qualities may have
detrimental effects on the cylinder, solar collectors and fittings. If you are in a known harsh water
HOW LONG WILL THE WATER HEATER LAST?
There are a number of factors that will affect the length of service the water heater will provide. These
include the water quality, the water pressure, temperature (inlet and outlet) and the water usage
pattern. However, your Solahart water heater is supported by a comprehensive warranty (refer to
ANODE PROTECTION
The anode(s) installed in your water heater will slowly dissipate whilst protecting the cylinder. The life of
the water heater cylinder may be extended by arranging for an authorised person to inspect the
anode(s) and replace if required.
The suggested time after installation when the anode(s) should be inspected is 8 years.
For softened water supplies or in areas of poor water quality, it is recommended the anode(s) be
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ABOUT YOUR WATER HEATER
BLEEDING THE SOLAR COLLECTORS
It is necessary to purge air from the collector circuit:
•
When the water heater 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 pipe work and air has entered the system.
If the circulator appears not to be circulating water around the system.
Warning: Bleeding the solar collectors should be conducted in the morning, within three hours of
sunrise, when the water temperature inside the solar collectors is lower.
To purge air from the collector circuit:
•
•
Ensure the water heater is full of water and all of the hot taps are turned off.
Using a flat blade screwdriver, open the bleed valve (if it is not
already open) fitted adjacent to the solar hot water (from
collector) inlet of the solar storage tank (see diagram).
air bleed
valve
•
The mains pressure will force water to flow from the tank and
through the pipe work, expelling air from the collector circuit
through the bleed valve. This is evidenced by spurting of water
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.
•
Close the bleed valve when water runs freely from the drain line.
FREEZE PROTECTION
Although the system has a level of freeze protection, designed to guard the system from unexpected
frost conditions, the system is not recommended for installation in areas subject to frost or freeze
conditions. Freeze conditions occur below 6°C. The system has NO WARRANTY for freeze damage
The anti freeze control is designed to recirculate a small amount of water from the solar storage tank
through the solar pipe work during periods of low temperatures. This is to prevent the water inside the
pipe work from freezing. The solar hot and solar cold pipes must be fully insulated with closed cell
polymer insulation (minimum thickness 13 mm) to offer protection against freeze damage. It is essential
that the electrical circuit to the solar control unit is continually turned on if there is a risk of freezing. The
solar warranty does not cover damage caused by freeze conditions.
Notes:
•
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.
•
The freeze protection system will be rendered inoperable if electrical power is not available at the
solar control unit.
•
•
•
Pipe work between the solar collectors and solar storage tank must be insulated.
The system is not covered for freeze damage.
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HOW YOUR WATER HEATER WORKS
The Solahart Streamline open circuit system has its vitreous enamel lined solar storage tank installed at
ground or floor level, remotely from the solar collectors. As the sun heats the water in the solar
collectors the increase in temperature activates the circulator. The circulator then moves the water from
the solar collectors through an insulated copper pipe to the solar storage tank. The circulator switches
on whenever the water in the solar collectors is hotter than the water in the tank. Cooler water from the
solar storage tank is circulated to the solar collectors to be heated by the sun’s energy. This process
continues while solar energy is available and until the water in the solar storage tank reaches a
temperature of approximately 70°C. Automatic safety controls are fitted to the water heater to provide
safe and efficient operation.
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 18, a pressure limiting
operation to be achieved. A minimum water supply pressure of 200 kPa is required to enable the solar
ELECTRIC BOOSTING
Water stored in the solar storage tank can be heated by an
electric booster heating unit. The booster heating unit is for
heating the water at times of low solar energy gain, such as
during very cloudy or rainy weather, or during the winter
months. The Streamline water heater is suitable for the
heating unit to be connected to an Off-Peak electricity
supply, but can be connected to an extended Off-Peak or
continuous electricity supply.
The booster heating unit is controlled by an electric
thermostat. The thermostat and its over temperature energy
cut out are mounted on the solar storage tank behind the
front cover. The water temperature is automatically
controlled to the thermostat setting when the booster heating
unit is energised.
MANUAL CONTROLS
An isolating switch is installed in your electrical meter box for
your solar storage tank. Solahart recommends an additional
manual isolating switch be installed in the power supply
circuit to the solar storage tank. This booster switch should
be installed in a convenient location such as the kitchen or
laundry and will enable control of the electrical boosting
during periods of poor solar gain.
A suitably rated single-pole on / off switch should be used to control a booster heating unit connected to
an Off-Peak electricity supply. A booster heating unit connected to a continuous electricity supply
should be controlled by either a suitably rated single pole on / off switch or “One Shot Control” switch.
The amount of water heated by the raised booster heating unit of your Streamline storage tank will be
285 litres (430 model), 200 litres (340 model) or 160 litres (270 model).
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HOW YOUR WATER HEATER WORKS
MANUAL ON/OFF SWITCH
a) Off-Peak (overnight) Tariff Connection
Most systems will be connected to an Off-Peak supply of electricity. Boosting will only occur overnight
(usually between 11:00 PM and 6:00 AM). In the winter months many households will find it necessary
to leave the booster switch ON. However, in some cases it may only be necessary to switch the booster
switch ON every second night. This can be determined over a trial period. At other times, care should
be taken not to leave the switch on during periods of no power, as solar savings will be reduced if the
booster heating unit activates upon resumption of power.
b) Extended Off-Peak (overnight and day) Tariff Connection
Operation is very similar to that suggested for continuous
tariff, but it is important to be aware of the hours during which
electricity is available so boosting, if required, can be adapted
to suit. (Check with your local Electricity Supply Authority for
hours of operation). Do not leave the booster switch on during
daylight hours unless boosting is required, as solar savings
will be reduced.
c) Continuous Tariff Connection
Operate the booster switch to activate the auxiliary booster
heating unit when the hot water falls below an acceptable
temperature. The amount of water heated depends on your
important to ensure the booster switch is turned OFF after you
have satisfied your hot water needs. Do not leave the booster
switch ON in daylight hours because your solar savings will
be reduced.
“ONE SHOT CONTROL” SWITCH
The “One Shot Control” switch will help provide maximum savings with an electrically boosted solar
water heater connected to a continuous electricity supply. Power must be available to the “One Shot
Control” switch before the booster heating unit can be activated.
The switch has a push button operation and incorporates an
indicator light. Refer to the manufacturer’s instructions
supplied with the “One Shot Control” switch for information on
how the indicator light arrangement works.
When you decide the hot water is below a usable temperature
and additional hot water is required, press the control button.
The booster heating unit will be turned “ON” if the water
temperature is below the thermostat setting, then
automatically turn “OFF” when the water temperature reaches
the thermostat setting.
It is not necessary to activate the booster heating unit every time the light indicates that boosting may
be required. The water may still be at a usable temperature for some purposes (e.g. showering) and
you may not need to use hot water for some hours during which time the water may be heated by the
sun.
Remember, even on cloudy days your solar water heater can receive diffuse radiation, which
will provide some heat to your stored water. On these days you will need to operate the booster
heating unit only as desired. For summer operation it is recommended trial periods be
undertaken to determine if it is necessary to turn the booster switch or one shot control ‘on’ at
all.
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HOW YOUR WATER HEATER WORKS
GOING ON HOLIDAYS
If you plan to be away from home, conserve energy by switching the booster switch “OFF”. It is not
necessary to switch off the electrical supply at the power outlet to the solar control unit. Refer to “To
two (2) weeks it is recommended the solar collectors be covered.
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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
Warning: Never block the outlet of this valve or its drain line for any reason.
Operate the easing lever on the temperature pressure
relief valve once every six months. It is very important
you raise and lower the lever gently.
DANGER: Failure to do this may result in the water
heater cylinder failing, or under certain circumstances,
exploding.
water
heater
If water does not flow freely from the drain line when
the lever is lifted, then the water heater should be
checked by your nearest Solahart Dealer.
lift until water
flows from the
drain line –
The temperature pressure relief valve should be
drain
line
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
lower gently
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and scaling water areas, an expansion
control valve is fitted to the cold water line to the water heater. The expansion control valve may
discharge a small quantity of water from its drain line during the heating period instead of the
temperature pressure relief valve on the water heater.
Operate the easing lever on the expansion control valve once every six months. It is very important
you raise and lower the lever gently. The expansion control valve should be checked for
performance or replaced at intervals not exceeding 5 years, or more frequently in areas where there is
a high incidence of water deposits.
COLLECTOR GLASS
Ensure the glass on your solar collectors is free of dust, salt spray or any other matter, which may
reduce the effectiveness of the solar collectors. If the collector glass becomes dirty, hose down or if the
solar collectors are accessible, wash the collector glass with water and a soft brush when the solar
collectors are cool. Have any trees trimmed which may shade the solar collectors.
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REGULAR CARE
FLUSHING THE SOLAR COLLECTORS
It may be necessary to flush the solar collectors if there is sediment in the water supply. This should be
conducted in the morning, within three hours of sunrise.
•
Open a hot water tap and allow the water to run for five (5) minutes prior to flushing the solar
collector(s).
•
•
Close the hot tap.
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 collector(s) to the solar
storage tank.
Warning: Exercise care, as water discharged from the solar collectors may be of a very high
temperature.
•
allowing the water to flow from the bleed valve drain line for five minutes before closing the bleed
valve.
It is recommended to flush the solar collectors every five years. This will assist in keeping the solar
collectors, solar cold pipe and solar hot pipe clear of sediment.
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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)
This can occur with new installations and is normally related to some misunderstandings as to the use
of the booster heating unit.
•
Insufficient sunlight
Insufficient sunlight due to cloudy weather during summer
months or low solar energy contribution in winter months
may mean you will need to switch on the booster heating
unit more often.
•
Booster heating unit not operating
Inspect the isolating switch marked “HOT WATER” or
“WATER HEATER” at the switchboard and the booster
switch (if one is installed) and ensure they are turned
“ON”.
Note: Check the electricity supply to which the unit is
connected. If on an Off-Peak or time controlled supply,
remember heating hours are restricted (refer to “Off-Peak
Check the fuse marked “HOT WATER” or “WATER HEATER” at the switchboard.
•
•
Solar Control Unit
Check the power outlet for the solar control unit is switched on.
Collectors shaded
If trees or other objects shade the solar collectors or if the glass is dirty, the effectiveness of the
solar collectors will be greatly reduced. Have the trees trimmed or the solar collectors relocated if
•
•
Collector area is too small
For most installations, the number of solar collectors recommended in Solahart literature has been
proven to provide the required solar energy to meet the average family needs. However, in some
circumstances, it may be necessary to install an additional 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 collector circuit. The air will need to be purged from the solar collectors (refer to “Bleeding The
•
•
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. As you have installed an energy saving appliance, 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.
Temperature pressure relief valve running
Is the relief valve discharging too much water? (Refer to “Temperature Pressure Relief Valve
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SAVE A SERVICE CALL
•
•
Thermostat setting
Ensure the thermostat setting is appropriate. You may choose to have your electrician adjust the
thermostat upwards to gain additional hot water capacity when boosting. Refer to “Temperature
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 guides in the sales
needed.
WATER NOT HOT ENOUGH
You may find that due to heavy hot water usage or low solar energy gain the water temperature may be
lower than normally expected. You will need to carefully plan your use of the booster heating unit to
boost the water temperature on such occasions.
A lower water temperature may also be noticed in the morning when the booster heating unit has not
been switched on overnight. This in particular may be experienced during periods of low solar energy
gain, or if there has been heavy hot water usage the previous night.
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
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.
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 water heater must be switched off at the isolating switch or switchboard. Phone your nearest
Solahart Dealer to arrange for an inspection.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater (refer to page 28) it may
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SAVE A SERVICE CALL
HIGH ELECTRICITY BILLS
With the installation of your new solar hot water system, maximum electrical energy savings can be
achieved with careful planning of hot water usage. Should you at any time, feel your electricity account
is too high, we suggest you check the following points:
•
•
•
Is the relief valve running excessively? (Refer to
Is one outlet (especially the shower) using more hot
water than you think? (Refer to “Not Enough Hot
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 leaking
pipe work.
•
•
Are you using the booster heating unit properly?
Consider recent changes to your hot water usage
pattern and check if there has been any increase in
tariffs since your previous account.
ELECTRICITY TARIFFS
The electricity tariff to which your solar water heater is connected will play an important role in the
overall effectiveness of the system. It is important you are aware of this tariff to enable you to take full
advantage of the boosting period, i.e. Off-Peak (overnight) or time controlled, Extended Off-Peak
(overnight and day) or extended time controlled, Domestic / Continuous. For types of tariffs, refer to
COLLECTOR GLASS
Warranty DOES NOT cover breakage of solar collector glass. Check your household insurance policy
covers collector glass breakage.
Warning: Collector glass must not be replaced whilst the solar collector is on the roof.
The collector glass is not offered as a replacement part and no attempt should be made to remove it.
Should the solar collector require replacement, contact your nearest Solahart Dealer.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE,
CALL YOUR NEAREST SOLAHART DEALER.
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INSTALLATION – SOLAR STORAGE TANK
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.
The system can be installed with Solahart ‘L’ solar collectors.
Although the system has a level of freeze protection, designed to guard the system from unexpected
frost conditions, the system is not recommended for installation in areas subject to frost or freeze
conditions. Freeze conditions occur below 6°C. The solar hot and solar cold pipes must be fully
insulated with closed cell polymer insulation (minimum thickness 13 mm) to offer protection against
SOLAR WATER HEATER STORAGE TANK LOCATION
The solar storage tank is suitable for either outdoor or indoor installation. Whether located outdoor or
indoor, the solar storage tank 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 tank in relation to the solar
collectors. There are limitations on the maximum length of the solar hot and solar cold pipes between
the solar storage tank and the solar collectors. Refer to “Solar Collector Location” on page 26 and to
Clearance must be allowed for servicing of the solar
storage tank. The solar storage tank must be
accessible without the use of a ladder or scaffold.
Make sure the temperature pressure relief valve
lever is accessible and the front cover, thermostat
and booster heating unit can be removed for service.
You must be able to read the information on the
rating plate. If possible leave headroom of one water
heater length so the anode can be inspected or
replaced. Remember you may have to remove the
entire solar storage tank later for servicing.
The installation must comply with the requirements
of AS/NZS 3500.4, AS/NZS 3000 and all local codes
and regulatory authority requirements. In New
Zealand, the installation must conform with the New
Zealand Building Code.
It is recommended the solar storage tank be installed at ground or floor level and must stand vertically
upright. Remember all local authorities have regulations about putting water heaters into roof spaces.
SAFE TRAY
It is a requirement of AS/NZS 3500.4 that for a new
installation, a water heater be installed in a safe tray
where in the event of a leak, property may otherwise
be damaged. Construction, installation and draining
of a safe tray must comply with the above mentioned
Standard.
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INSTALLATION – SOLAR STORAGE TANK
MAINS WATER SUPPLY
Where the mains water supply pressure exceeds that shown in the table, an approved pressure limiting
valve is required and should be fitted as shown in the installation diagram (refer to diagram on
Model
270, 340, 430
1000 kPa
Relief valve setting
Expansion control valve setting *
Max. mains supply pressure
With expansion control valve
Without expansion control valve
Min. mains supply pressure
850 kPa
680 kPa
800 kPa
200 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, then a pressure pump system is
recommended to ensure a minimum water pressure of 200 kPa is achieved to allow the solar circuit
system to operate. Take care to avoid air locks.
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INSTALLATION – SOLAR STORAGE TANK
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 area such as a bathroom or ensuite, to reduce the risk of
scalding. The installing plumber may have a legal obligation to ensure the installation of this water
heater meets the delivery water temperature requirements of AS/NZS 3500.4 so that scalding water
temperatures are not delivered to a bathroom, ensuite or other ablution area.
Where a temperature limiting device is installed adjacent to the solar 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 and pressure limiting valve to the solar storage tank, but it MUST BE before the non
return valve. 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 solar storage tank.
Warning: A non return valve MUST BE installed on the cold water line to the solar storage tank
AFTER the cold water branch to a temperature limiting device.
If a combination isolation valve and non return valve (duo or trio valve) is installed on the cold water line
to the solar water heater and the cold water line to the temperature limiting device branches off after
this valve, then a second non return valve must be installed between the cold water branch and the
solar storage tank.
If a pressure limiting valve is installed on the cold water line to the solar water heater and the cold water
line to a temperature limiting device branches off before this valve or from another cold water line in the
premises, then a pressure limiting valve of an equal pressure setting may be required prior to the
temperature limiting device.
Two Temperature Zones Using a Temperature Limiting Device
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INSTALLATION – SOLAR STORAGE TANK
CIRCULATED HOT WATER FLOW AND RETURN SYSTEM
A solar water heater should not be installed as part of a circulated hot water flow and return system in a
building. The benefits of solar gain will be significantly reduced and energy gained from the sun lost
through the pipe work.
If a circulated flow and return system is required, it is necessary to bypass the solar water heater and
install a secondary water heater connected to the hot water flow and return line and supplied from the
solar water heater. The secondary water heater must be a storage water heater able to provide a hot
water outlet temperature of at least 60°C. Note: The thermostat must always be set to at least 60°C.
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 – Solar Water Heater
20
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INSTALLATION – SOLAR STORAGE TANK
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.
The pipe work between the solar storage tank and the solar collectors must be fully insulated with
closed cell polymer insulation or similar (minimum thickness 13 mm). Thicker insulation may be
required to comply with the requirements of AS/NZS 3500.4. The insulation must be weatherproof and
UV resistant if exposed. The insulation must be fitted up to the connections on both the solar storage
tank and the solar collectors.
ANODE TYPES
The correct anode type for the water supply being used must be fitted in the water heater (refer to
Total Dissolved Solids in water supply to the water heater
Anode colour code
0 – 40 mg/L
40 – 600 mg/L
600 – 2500 mg/L
Green
Black
Blue
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 12 mm. Should pre drilling be
required, extreme caution must be observed when penetrating the jacket of the water heater.
Note: Damage to the cylinder as a result of saddling to the jacket will void the warranty.
BOOSTER HEATING UNIT
The booster heating unit provides hot water during periods of low solar gain. This can be connected to
either an Off-Peak (overnight), Extended Off-Peak (overnight and day) electricity supply or a continuous
electricity supply. Boosting can be controlled via a user operated manual switch. Refer to “Manual
If this water heater is installed as a solar preheater to an in-series water heater, then the booster
heating unit does not need to be connected to a power supply.
21
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INSTALLATION – SOLAR STORAGE TANK
DIMENSIONS AND TECHNICAL DATA
Tank Mass (kg)
Model
Capacity
Empty
Full
340
412
521
270 SLV
340 SLV
430 SLV
270 litres
325 litres
410 litres
70
87
111
Dimensions (mm)
270 SLV
A
B
C
D
E
F
H
J
N
1395
1640
1840
640
640
690
680
680
730
1117
1357
1519
73
73
81
556
623
533
499
561
417
32°
32°
30°
88°
88°
82°
340 SLV
430 SLV
Specifications are subject to change with ongoing product improvements.
22
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INSTALLATION – SOLAR CONTROL UNIT
The solar control unit is designed to be mounted on the side of the solar storage tank, with its location
in between and offset from the cold water inlet and solar hot water inlet. The solar control unit, supplied
with a 1.8 metre power cord, requires a 240 V general power outlet (GPO) located within 1.2 metres of
its installation. The GPO must have a continuous power supply originating from a circuit other than the
water heater circuit. The GPO is required to be weatherproof if installed outdoors (refer to “Connections
Note: Care must be taken when mounting the solar control unit to the side of the solar storage tank.
Damage to the cylinder as a result of mounting the solar control unit to the jacket will void the warranty
SOLAR STORAGE TANK WITH RAISED SOLAR HOT INLET
To connect the solar cold pipe and mount the solar control unit on a Streamline storage tank with a
raised solar hot inlet (and raised heating unit):
•
Assemble a ½” x ½” hex nipple (1) into the branch outlet of the 4 way tee (2) (ensure the
compression end of the nipple is exposed) and the ½” x ¾” hex nipple (3) in the end of the 4 way
tee, so that when the assembly is fitted to the cold water inlet of the solar storage tank, the
compression nipple (1) is orientated vertically upwards and the cold sensor housing is orientated to
the rear of the solar storage tank. Fit the assembly to the cold water inlet of the solar storage tank.
•
•
•
Connect the DN15 preformed pipe (4) to the branch tee connection, using the compression nut (5)
and olive (6) provided.
Fit a ½” x ½” hex nipple (1) to the outlet of the circulator (7) mounted in the solar control unit (8)
(ensure the compression end of the nipple is exposed).
Locate the solar control unit (8) by connecting the DN15 preformed pipe (4) to the nipple on the
inlet of the circulator (7) using the compression nut (5) and olive (6) provided.
•
•
Secure the solar control unit (8) to the solar storage tank using the four screws (9) provided.
Connect the solar cold pipe (to the collector) to the nipple (1) on the outlet side of the circulator (7)
using the compression nut (5) and olive (6) provided.
•
•
•
Insert the cold sensor probe (10) into the cold sensor housing on the 4 way tee (2), ensuring the
‘O’ ring is in position on the probe. Lock it into position with the locking washer and clip provided.
Connect the hot sensor lead (from the solar collector installation) to the hot sensor cable connector
at the underside of the solar control unit (8).
Insulate the preformed pipe (4) with the 280 mm long x 12 mm diam insulation (12) and secure with
the cable ties (14) provided.
To connect the solar hot pipe to the solar storage tank:
•
Fit the air bleed valve and non return valve assembly (11) to the solar hot water inlet of the solar
storage tank. Ensure the bleed valve outlet is pointing downwards at 45° to the rear of the solar
storage tank, away from the solar control unit (8).
•
•
•
compression nut and olive provided.
Fit a ½” x ½” hex nipple (1) to the end (inlet) of the air bleed valve and non return valve
assembly (11) (ensure the compression end of the nipple is exposed).
Connect the solar hot pipe (from the collector) to the nipple (1) on the air bleed valve and non
return valve assembly (11) using the compression nut (5) and olive (6) provided.
24
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INSTALLATION – SOLAR CONTROL UNIT
•
Insulate the air bleed valve and non return valve assembly (11), from the solar hot pipe to the solar
hot water inlet of the solar storage tank, with the 150 mm long x 35 mm diam insulation (13) and
secure with the cable ties (14) provided.
Note: Use thread sealing tape or an approved thread sealant on all fittings.
to solar
collectors
from solar
collectors
assembly details of solar
hot and solar cold pipe
connections
Solar Storage Tank with Solar Control Unit
SUPPLIED IN SOLAR
CONTROL UNIT KIT
1.
2.
3.
4.
5.
6.
7.
8.
9.
Hex nipple ½” X ½”
4 way tee
Hex nipple ½” x ¾”
Preformed pipe DN15
Compression nut
Olive
Circulator
Solar control unit
Screws
10. Cold sensor probe
11. Air bleed valve and non
return valve assembly
12. Insulation 280 mm long x
12 mm diam
13. Insulation 150 mm long x
35 mm diam
14. Cable tie
25
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INSTALLATION – SOLAR COLLECTORS
SOLAR COLLECTOR LOCATION
Consideration must be given to the position of the solar collectors in relation to the solar storage tank.
There are limitations on the maximum length of the solar hot and solar cold pipes between the solar
storage tank and the solar collectors. Refer to “Solar Storage Tank Location” on page 17 and to “Pipe
•
•
The solar collectors must be installed in a shade free position.
The solar collectors are to be installed facing toward
the equator (i.e. north facing in the southern
hemisphere and south facing in the northern
hemisphere). Where this orientation is not practical, a
system facing up to 45° from the equator will have its
efficiency reduced by approximately 5%.
•
Inclination of the solar collectors should be
approximately equal to 90% of the local latitude
the roof angle for simplicity of installation and
appearance, but must never be flat. If the roof angle
varies by 15° from the correct angle, efficiency will be
reduced by 10%.
•
For an installation on a roof with a pitch less than 10°,
a Variable Pitch stand is required. Refer to your local
Solar Distributor for details.
•
•
•
For an installation at right angles to (across) the roof pitch, a Flat Roof stand and an Across Pitch
kit are both required. Refer to your local Solar Distributor for details.
For an installation opposite to (against) the roof pitch, a Flat Roof stand and an Against Pitch kit are
both required. Refer to your local Solar Distributor for details.
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°, special roof fixings may be necessary. Refer
to your local Solar Distributor for details.
•
•
•
The roof must be suitable to take the mass of the solar collectors. Each solar collector and its
fittings weighs approximately 40 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.
Refer to the installation instructions supplied with the collector kit for details on the installation of
the solar collectors.
LATITUDE OF SOME AUSTRALIAN CITIES
Adelaide
Cairns
Hobart
Port Hedland
Rockhampton
Sydney
35°S
24°S
27°S
31°S
17°S
35°S
12°S
28°S
42°S
34°S
38°S
32°S
20°S
24°S
34°S
19°S
Alice Springs
Brisbane
Canberra
Darwin
Mildura
Melbourne
Perth
Broken Hill
Geraldton
Townsville
26
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INSTALLATION – SOLAR COLLECTORS
PIPE LENGTHS
The maximum recommended combined length of the solar cold and solar hot pipes with bends is:
Maximum recommended total pipe length and number of 90° bends
1 or 2 Collectors
3 Collectors
4 Collectors
Pipe Size
Pipe Length
Pipe Length
Pipe Length
90° Bends
90° Bends
90° Bends
DN15
DN20
40 metres
NR
20
30 metres
40 metres
20
20
15 metres
40 metres
20
20
NR
For each additional 90° bend, reduce the maximum total pipe length by 0.5 metres.
For each additional metre of pipe length, reduce the number of 90° bends by two.
Note: One 90° elbow is equal to two 90° bends.
NR – not recommended.
The solar hot and solar cold pipes between the solar storage tank and the solar collectors should be a
minimum DN15.
Maximum height to collectors
The maximum height of a solar Streamline installation, from the solar controller (circulator) to the top of
the solar collectors, is determined by the maximum recommended total pipe length for the system and
the water supply pressure.
The maximum recommended total pipe length of the solar circuit should not be exceeded and a
minimum water supply pressure of 200 kPa should be available at the inlet to the system, otherwise the
system performance may be reduced or the solar circuit may not be purged of air during the
commissioning of the system.
WARNING: Plumber – Be Aware
•
The solar hot and solar cold pipes between the solar storage tank and the solar collectors
MUST BE of copper and fully insulated with closed cell polymer insulation or similar (minimum
thickness 13 mm). Thicker insulation may be required to comply with the requirements of
AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. All
compression fittings must use brass or copper olives.
Note: Failure to observe this requirement increases the risk of freeze damage.
The insulation is essential to assist in providing freeze protection, will offer corrosion protection
to a metal roof against water runoff over the copper pipe, assist in avoiding accidental contact
with the solar pipe work and also reduce pipe heat losses.
•
•
The insulation must be fitted up to the connections on both the solar collectors and the
solar storage tank, as very high temperature water can flow from the solar collectors to the
solar storage tank under certain conditions.
Plastic pipe MUST NOT be used, as it will not withstand the temperature and pressure of the
water generated by the solar collectors under stagnation conditions. The solar collectors can
generate extremely high water temperatures up to 150°C and high water pressure of 1000 kPa.
Plastic pipe cannot withstand these temperatures and pressures and MUST NOT be used.
Failure of plastic pipe can lead to the release of high temperature water and cause severe
water damage and flooding.
•
There must be a continuous fall in the pipe work between the solar collectors and solar
storage tank. The highest point of the solar cold pipe and solar hot pipe must be where they
connect to the solar collectors, to avoid the possibility of air locks occurring in the system.
27
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CONNECTIONS – PLUMBING
CONNECTION SIZES
•
•
Hot water connection: RP¾/20.
Cold water connection: RP½/15.
(cold water inlet to tank: RP¾/20).
•
Solar hot (from collector) connection: DN15 compression fitting.
(solar hot inlet to tank: RP¾/20).
•
•
•
Solar cold (to collector) connection: DN15 compression fitting.
Relief valve connection: RP½/15.
Bleed valve connection: G1.0B.
All plumbing work must be carried out by a qualified person and in accordance with the National
Plumbing Code AS/NZS 3500.4 and local authority requirements.
Note: The solar water heater should not be installed as part of a circulated hot water flow and return
system in a building. The benefits of solar gain will be significantly reduced and energy gained from the
sun lost through the pipe work. If a circulated flow and return system is required, it is necessary to
bypass the solar water heater and install a secondary water heater supplied from the solar water heater
and connected to the hot water flow and return line.
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. Use
OR
The plumbing arrangements for the cold water inlet and solar hot and solar cold pipes are shown on
A disconnection union must always be provided at the cold water inlet, solar hot water inlet and hot
water outlet on the water heater to allow for disconnection of the water heater.
28
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CONNECTIONS – PLUMBING
This water heater has either a plastic dip tube or fitting
liner in the inlet and outlet fittings (see diagram). These
must be in place for the water heater to function properly.
Do not remove or damage them by using heat nearby.
They will be pushed into the correct position as the fitting
is screwed in.
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.
IN-SERIES WATER HEATER (IF INSTALLED)
The pipe work between the solar storage tank and an in-series water heater has a minimum
recommended pipe size of DN20, MUST BE of copper and be fully insulated in accordance with the
requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The
insulation must be fitted up to the connections on both the solar storage tank and the in-series water
heater. An isolation valve must be installed on the water line to the in-series water heater.
RELIEF VALVE
The temperature pressure relief valve is shipped either under the top flap of the water heater carton or
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 on page 23) leaving the valve
RELIEF VALVE DRAIN
A copper drain line must be fitted to the relief valve to carry the discharge clear of the water heater.
Connect the drain line to the relief valve using a disconnection union. The pipe work from the relief
valve to the drain should be as short as possible and fall all the way from the water heater with no
restrictions. It should have no more than three right angle bends in it. Use DN15 pipe. The outlet of the
drain line must be in such a position that flow out of the pipe can be easily seen (refer to
AS/NZS 3500.4) - but arranged so hot water discharge will not cause injury, damage or nuisance. The
drain line must discharge at an outlet or air break not more than 9 metres from the relief valve.
In locations where water pipes are prone to freezing, the drain line must be insulated and not exceed
300 mm in length. In this instance, the drain line is to discharge into a tundish through an air gap of
between 75 mm and 150 mm.
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.
29
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CONNECTIONS – PLUMBING
BLEED VALVE DRAIN
A copper drain line must be fitted to the bleed valve to carry the discharge clear of the water heater and
solar controls. Connect the drain line to the bleed valve using a disconnection union. The pipe work
from the bleed valve to the drain should be as short as possible and fall all the way from the valve with
no restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.
The outlet of the drain line must be in such a position that flow out of the pipe can be easily seen (refer
to AS/NZS 3500.4) - but arranged so water discharge will not cause injury, damage, nuisance or
splashing. The water discharged may be of a high temperature under certain conditions. The drain line
must be fully insulated with closed cell polymer insulation or similar (minimum thickness 13 mm). The
insulation must be weatherproof and UV resistant if exposed.
EXPANSION CONTROL VALVE
Local regulations may make it mandatory to install an expansion control valve (ECV) in the cold water
line to the water heater. In other areas, an ECV is not required unless the saturation index is greater
water area where there are sufficient quantities of silica dissolved in the water.
The expansion control valve must always be installed after the non return valve and be the last valve
30
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CONNECTIONS – ELECTRICAL
The power supply to the water heater must not be switched on until the water heater is filled
with water and a satisfactory megger reading is obtained.
All electrical work and permanent wiring must be carried out by a qualified person and in accordance
with the Wiring Rules AS/NZS 3000 and local authority requirements.
If this water heater is installed as a solar preheater to an in-series water heater, then the booster
heating unit does not need to be connected to a power supply and the references to the booster heating
unit, thermostat and manual controls are not applicable.
SOLAR STORAGE TANK
The solar storage tank with an electric booster heating unit must be directly connected to a
240 V AC 50 Hz mains power supply with an isolating switch installed at the switchboard.
financial savings. Discuss the power supply requirements with the householder.
A flexible 20 mm conduit is required for the electrical cable to the solar storage tank. The conduit is to
be connected to the unit with a 20 mm terminator. Connect the power supply wires directly to the
terminal block and earth tab connection, ensuring there are no excess wire loops inside the front cover.
THERMOSTAT SETTING
The thermostat is adjustable from 60°C to 70°C. The thermostat is adjusted by turning the adjuster
anticlockwise to decrease the temperature setting and clockwise to increase the temperature setting.
Only adjust the temperature setting when the isolating switch is switched off at the switchboard.
For reasons of safety and economy, we advise the thermostat be set at the lowest temperature that will
provide sufficient hot water during periods when boosting is required. Solahart recommends the
thermostat is set at 60°C to maximise solar contribution. Discuss the thermostat setting requirements
with the householder.
SOLAR CONTROL UNIT
The solar control unit, supplied with a 1.8 metre power cord, requires a switched 240 V AC 50 Hz
general purpose outlet (GPO) to be located within 1.2 metres of the installation. The GPO must have a
continuous power supply originating from a circuit other than the water heater circuit. The GPO is
required to be weatherproof if installed outdoors.
MANUAL CONTROLS
Solahart recommends an additional manual isolating switch be installed in the power supply circuit to
the solar storage tank. This booster switch is to be installed in a convenient location such as the kitchen
or laundry and will enable the householder to control the electrical boosting during periods of poor solar
gain.
A suitably rated single-pole on / off switch should be used to control a booster heating unit connected to
an Off-Peak electricity supply. A booster heating unit connected to a continuous electricity supply
should be controlled by either a suitably rated single pole on / off switch or “One Shot Control” switch.
Refer to the manufacturer’s instructions supplied with the switch for installation details. Discuss the
manual switching arrangements with the householder.
31
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CONNECTIONS – ELECTRICAL
BOOSTER SWITCH WIRING DIAGRAM
Electrical installation of the solar storage
tank without a manual boosting switch
Electrical installation of the solar storage
tank with a manual boosting switch
32
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COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The power supply to the solar storage tank and solar control unit must not be switched on until
the water heater is filled with water and a satisfactory megger reading is obtained.
•
•
Open all of the hot water taps in the house (don’t forget the shower).
Open the cold water isolation valve fully on the cold water line to the water heater. Air will be forced
out of the taps.
•
•
•
Close each tap as water flows freely from it. Check the pipe work for leaks.
Plug in the solar control unit at the power outlet and switch on the electrical supply. The power
outlet must be switched on for the solar control unit to operate and solar gain to be achieved.
•
Switch on the electrical supply at the isolating switch to the solar storage tank.
Explain to the householder the functions and operation of the solar water heater. Upon completion of
the installation and commissioning of the water heater, leave this guide with the householder.
BLEEDING THE SOLAR COLLECTORS
Upon completion of the installation, it is necessary to purge the air from the collector circuit. To purge
air from the collector circuit:
•
•
Ensure the water heater is full of water and all of the hot taps are turned off.
Using a flat blade screwdriver, open the bleed valve fitted
adjacent to the solar hot water inlet of the solar storage tank
(see diagram).
air bleed
valve
•
•
The mains pressure will force water to flow from the tank
and through the pipe work, forcing air from the collector
circuit through the bleed valve. This is evidenced by spurting
of water 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.
Close the bleed valve when water runs freely from the drain
line.
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation, such as on a building site
or where the premises is vacant, then:
•
•
•
Switch off the electrical supply at the isolating switch to the solar storage tank.
Switch off the electrical supply at the power outlet to the solar control unit (refer to note below).
Close the cold water isolation valve at the inlet to the water heater.
Note: The freeze protection system will be rendered inoperable if electrical power is not available. The
a risk of freezing, then it is necessary to drain the solar collectors and connecting pipe work (refer to
33
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DRAINING THE SOLAR COLLECTORS
To drain the solar collectors and the solar hot and solar cold pipe:
•
Open a hot water tap and allow the water to run for five minutes immediately prior to draining the
solar collector(s).
This will assist in the transfer of any high temperature water in the solar collector(s) to the solar
storage tank.
•
Close the hot water tap.
Warning: Exercise care, as water discharged from the solar collectors may be of a very high
temperature.
•
•
Using a flat bladed screw driver, open the bleed valve fitted adjacent to the solar hot water inlet of
•
Undo the compression fitting at the top of the circulator (located at the side of the solar control unit)
and disconnect the solar cold pipe.
Water will now drain from the solar collectors and the solar hot and solar cold pipes.
•
•
When water stops flowing from the solar hot and solar cold pipes, reconnect the solar cold pipe to
the circulator and tighten the compression fitting.
Close the bleed valve.
34
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DRAINING THE WATER HEATER
To drain the water heater:
•
Open a hot water tap and allow the water to run for five minutes immediately prior to draining the
solar storage tank.
This will assist in the transfer of any high temperature water in the solar collector(s) to the solar
storage tank.
•
Close the hot water tap.
Warning: Exercise care, as water discharged from the solar storage tank may be of a very high
temperature.
•
•
Operate the relief valve release lever - do not let the lever snap back or you will damage the valve
seat.
Operating the lever will release the pressure in the water heater.
Undo the union at the cold water inlet to the 4 way tee and attach a hose.
Let the other end of the hose go to a drain.
•
•
Operate the relief valve again.
This will let air into the water heater and allow the water to drain through the hose.
35
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WATER SUPPLIES
Your water heater is manufactured to suit the water conditions of most Australian metropolitan supplies.
However, there are some known water supplies which can have detrimental effects on the water heater
and its operation and/or life expectancy. If you are unsure of your water quality, you can obtain
information from your local water supply authority. The water heater should only be connected to a
potable water supply.
ANODE
By using the correct colour coded anode this water heater can be used in areas where the total
dissolved solids (TDS) content in the water is up to 2500 mg/L. In areas where the TDS exceeds
600 mg/L it is possible the black anode, which is the standard anode fitted to the water heater, may be
excessively active. To alleviate this, the black anode should be replaced with one colour coded blue.
Where the TDS of the water is less than 40 mg/L, such as when the water has been deionised or is
from an alpine supply, a high potential anode, colour coded green, should be used. The changing of
anodes must be carried out by a plumber or authorised service person.
CAUTION
If your water supply has a TDS greater than 600 mg/L and the anode has not been changed to a blue
one, there is the possibility hydrogen gas could accumulate in the top of the water heater during long
periods of no use. In areas where this is likely to occur, the installer should instruct the householder on
how to dissipate the gas safely.
If, under these conditions, the water heater has not been used for two or more weeks the following
procedure should be carried out before using any electrical appliances (automatic washing machines
and dishwashers) which are connected to the hot water supply.
The hydrogen, which is highly flammable, should be vented safely by opening a hot tap and allowing
the water to flow. There should be no smoking or naked flame near the tap whilst it is turned on. Any
hydrogen gas will be dissipated. This is indicated by an unusual spurting of the water from the tap.
Once the water runs freely again, any hydrogen in the system will have been released.
SATURATION INDEX
The saturation index is used as a measure of the water’s corrosive or scaling properties. In a corrosive
water supply, the water can attack copper parts and cause them to fail. Where the saturation index is
less than –1.0, the water is corrosive and a corrosion resistant heating unit should be used and
warranty does not apply to a solar collector.
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 scaling and an expansion control valve* must
be fitted on the cold water line after the non-return valve and the solar collectors should be covered
when the water heater is not intended to be used for more than two weeks. Where the saturation index
exceeds +0.80, a low watts density heating unit should be used and warranty does not apply to a solar
collector unless a water softening device is installed.
Contact your nearest Solahart Dealer if a replacement heating unit is required.
WATER HEATERS NOT INSTALLED IN ACCORDANCE WITH THE ABOVE ADVICE WILL NOT BE
COVERED BY THE WARRANTY.
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SOLAHART STREAMLINE, SYNERGY, GAS BOOSTER
SOLAR WATER HEATER WARRANTY – AUSTRALIA ONLY
WARRANTY CONDITIONS
1. This warranty is applicable only to water heaters manufactured
from 1st July 2006.
between the nearest Solahart Dealer’s premises and the
installed site shall be the owner’s responsibility.
2. The water heater must be installed in accordance with the 5. Where the water heater is installed in a position that does not
Solahart water heater installation instructions, supplied with the
water heater, and in accordance with all relevant statutory and
local requirements of the State in which the water heater is
installed.
allow safe, ready access, the cost of accessing the site safely,
including the cost of additional materials handling and / or safety
equipment, shall be the owner’s responsibility.
6. The warranty only applies to the water heater and original or
genuine (company) component replacement parts and therefore
does not cover any plumbing or electrical parts supplied by the
installer and not an integral part of the water heater, e.g.
pressure limiting valve; isolation valves; non-return valves;
electrical switches; pumps or fuse.
3. Where a failed component or water heater is replaced under
warranty, the balance of the original warranty period will remain
effective. The replaced part or water heater does not carry a new
warranty.
4. Where the water heater is installed outside the boundaries of a
metropolitan area as defined by Solahart or further than 30 km 7. The water heater must be sized to supply the hot water demand
from a regional Solahart Dealer from whom the water heater was
purchased, the cost of transport, insurance and travelling costs
in accordance with the guidelines in the Solahart water heater
literature.
WARRANTY EXCLUSIONS
1. REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE SOLAHART WATER HEATER
WARRANTY, HOWEVER THE FOLLOWING EXCLUSIONS MAY CAUSE THE WATER HEATER WARRANTY TO
BECOME VOID AND MAY INCUR A SERVICE CHARGE AND / OR COST OF PARTS.
a) Accidental damage to the water heater or any component,
including: Acts of God; failure due to misuse; incorrect
installation; attempts to repair the water heater other than by the
Solahart Dealer.
or incorrectly mixed closed circuit fluid being used; a Streamline
closed circuit system where there is insufficient or incorrect fall in
the pipe work preventing complete drain back of the closed
circuit fluid.
b) Where it is found there is nothing wrong with the water heater; e) Where the electronic instantaneous gas booster water heater or
where the complaint is related to excessive discharge from the
temperature and / or pressure relief valve due to high water
pressure; where the complaint is related to insufficient or
incorrect fall in the pipe work preventing complete drain back of
the closed circuit fluid of a Streamline closed circuit system;
where there is no flow of hot water due to faulty plumbing; where
water leaks are related to plumbing and not the water heater or
water heater components; where there is a failure of gas,
electronic instantaneous gas booster water heater component
has failed directly or indirectly as a result of ice formation in the
water ways of a water heater: where the water heater has not
been installed in accordance with the water heater installation
instructions; where the electricity has been switched off or has
failed and the water heater has not been drained in accordance
with the instructions; due to an ambient temperature below -
20°C (including wind chill factor).
electricity or water supplies; where the supply of gas, electricity f) Where the water heater is located in a position that does not
or water does not comply with relevant codes or acts.
comply with the Solahart water heater installation instructions or
relevant statutory requirements, causing the need for major
dismantling or removal of cupboards, doors or walls, or use of
special equipment to bring the water heater to floor or ground
level or to a serviceable position.
c) Where the water heater or water heater component has failed
directly or indirectly as a result of: excessive water pressure;
excessive temperature and / or thermal input; blocked
overflow / vent drain; corrosive atmosphere; non Solahart
approved or incorrectly mixed closed circuit fluid being used; g) Repair and / or replacement of the water heater due to scale
incorrect or insufficient filling of the closed circuit system with the
closed circuit fluid; ice formation in the pipe work to or from the
water heater.
formation in the waterways or the effects of either corrosive
water or water with a high chloride or low pH level when the
water heater has been connected to a scaling or corrosive water
supply or a water supply with a high chloride or low pH level as
outlined in the Owner’s Guide and Installation Instructions
booklet.
d) Where the solar water heater or solar water heater component
has failed directly or indirectly as a result of ice formation in the
water ways of: a Streamline open circuit system; a Streamline
closed circuit system where the system has not been installed in h) Breakage of collector glass for any reason including hail
accordance with the water heater installation instructions; a
Streamline closed circuit system due to non Solahart approved
damage. (We suggest that the collector glass be covered by
your home insurance policy).
2. SUBJECT TO ANY STATUTORY PROVISIONS TO THE CONTRARY, THIS WARRANTY EXCLUDES ANY AND ALL
CLAIMS FOR DAMAGE TO FURNITURE, CARPETS, 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.
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SOLAHART STREAMLINE, SYNERGY, GAS BOOSTER
SOLAR WATER HEATER WARRANTY – AUSTRALIA ONLY
WARRANTY
Solahart will:
a) Repair or, if necessary replace any Solahart water heater; or
b) Replace any component (or, if necessary, arrange the installation of a new water heater),
which falls within the Warranty Periods specified below, subject to the warranty conditions and exclusions.
Installation
Model
Period
Warranty
All Components (from date of installation)
New component, solar collector or water heater (at
Solahart’s sole discretion), free of charge, including
labour.**
Year
1
All installations
All models
Sealed System *** (from date of installation)
Water heater installed in a
“single-family domestic dwelling”
Year New sealed system component, free of charge, including
Synergy
2
labour.**
Cylinder (from date of installation)
Streamline,
Streamline
Closed Circuit,
Synergy
Years
2 & 3
New water heater, free of charge, including labour.**
Water heater installed in a
“single-family domestic dwelling”
Years New water heater, free of charge, with installation and
4 & 5 labour costs being the responsibility of the owner.
Streamline,
Streamline
Closed Circuit,
Synergy
Water heater installed in any other
than a
“single-family domestic dwelling”
Years New water heater, free of charge, with installation and
2 & 3 labour costs being the responsibility of the owner.
Heat Exchanger Electronic Instantaneous Gas Booster (from date of installation)
Years
2 & 3
New heat exchanger, free of charge, including labour.**
Water heater installed in a
Streamline
“single-family domestic dwelling”
Closed Circuit
Years New heat exchanger, free of charge, with installation and
4 & 5 labour costs being the responsibility of the owner.
Solar Collector (from date of installation)
L
J
KF
Water heater installed in a
“single-family domestic dwelling”
Years New solar collector, free of charge, with installation and
2 to 5 labour costs being the responsibility of the owner.
Notes:
* Solahart is the supplier of Solahart electronic instantaneous solar gas booster water heaters, manufactured by Paloma
Industries, a world leader in water heater technology and manufacture.
** Refer to items 4 and 5 of warranty conditions.
*** The Sealed System includes components that carry refrigerant only, e.g. Compressor, Condenser, TX Valve,
Receiver/Drier, Evaporator and associated pipe work.
Solahart reserves the right to transfer fully functional components from the defective water heater to the replacement water
heater if required. The term “water heater” used in the Warranty, Warranty Conditions and Warranty Exclusions means the
Solahart supplied water heater(s), solar storage tank(s), solar collector(s), kit(s) and components.
In addition to this warranty, the Trade Practices Act 1974 and similar laws in each state and territory provide the owner under
certain circumstances with certain minimum statutory rights in relation to your Solahart water heater. This warranty must be
read subject to that legislation and nothing in this warranty has the effect of excluding, restricting or modifying those rights.
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.
38
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SOLAHART INSTALLATION & WARRANTY REPORT
Dear Customer – To register your warranty please ensure the following information is correct
then sign and return to our Solahart Industries Pty Ltd freepost address:
Solahart Industries Pty Ltd
Reply Paid Perth 354
Welshpool, Western Australia 6106
WARRANTY
Please complete all details below
Owner’s Name
Installation Address
Suburb
State
Country
Postcode
Telephone
Solahart Dealership
(H)
(W)
Consultant
Installer’s Name
Installation Date
Type of Installation
(please circle)
New
Solar to Solar Tank Replacement
Other
Work Delivery Details
System Model No
Tank Model No
System Type
Tank Serial No
No of Collectors
Collector Model No
Collector Serial No’s
1)
2)
3)
4)
Booster Type
Electric
continuous
Off Peak 1
(night)
Off Peak 2
(night & day)
In-Tank Gas
Booster
In-Line
Booster
Solar Preheat
only
(please circle)
Booster Control
None
Timer
Manual Switch
One Shot Control
(please circle)
In-Line Booster
Model No
Serial No
(if installed)
Service’s Due
1)
2)
3)
4)
If replacing a water heater, please give details
Brand
Model No
Electric
Gas
If a Solahart unit
Tank Serial No
Date of manufacture
3) 4)
Collector Serial No’s
1)
2)
Comments
Installer Certification – I certify this installation has been installed and tested in accordance with Solahart Industries Pty Ltd specifications
Signature:
Date
Installer
Customer
White Copy: Head Office
Yellow Copy: Dealer
Blue Copy: Sales Office
Green Copy: Manual
39
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SOLAHART OFFICES
International Headquarters
Solahart Industries Pty Ltd
(ABN 45 064 945 848)
112 Pilbara St
Welshpool
Western Australia 6106
International Sales
Telephone International Sales:
+ 61 8 9351 4600
Facsimile International Sales:
+ 61 8 9351 4698
Email:
Postal Address:
PO Box 95
Internet:
State Parcel Centre
Welshpool WA 6986
International Offices
Europe
USA
Phone International:
Facsimile International:
+ 31 492 579 696
+ 31 492 579 694
Phone International:
+ 1 334 260 1586
+ 1 334 260 1514
Facsimile International:
Australia
For SERVICE Telephone - 1800 638 011
For Sales Telephone - 1300 769 475
or your nearest Solahart Dealer
or your nearest Solahart Dealer
Revision Date: 2006 August
126518G
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