Solahart Streamline Electric User manual

This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Streamline
Indirect Closed Circuit
Gas 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.
Solahart Industries Pty Ltd
ABN 45 064 945 848

PATENTS
This water heater may be protected by one or more patents or registered designs in the name of
Solahart Industries Pty Ltd, Rheem Australia Pty Ltd or Paloma Co., Ltd.
Solahart Industries Pty Ltd is the supplier of the Solahart range of continuous flow gas water heaters,
manufactured by Paloma Co., Ltd., a world leader in water heater technology and manufacture.
TRADE MARKS
®Registered trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.
™ Trademark of Solahart Industries 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.
WARNING: Plumber –Be Aware
The solar hot and solar cold pipes between the solar storage tank and the solar collectors MUST BE
of copper. All compression fittings must use brass or copper olives.
The full length of the solar hot and solar cold pipes MUST BE insulated.
The insulation must:
be of a closed cell type or equivalent, suitable for a solar water heating application and capable of
withstanding the temperature of the closed circuit fluid generated by the solar collectors under
stagnation conditions
The specification of the chosen insulation material should be checked with the insulation
manufacturer prior to installation as different materials may vary in temperature tolerance.
be at least 13 mm thick, however thicker insulation may be required to comply with the
requirements of AS/NZS 3500.4
be weatherproof and UV resistant if exposed
extend through any penetrations in the eaves, ceiling and roof
cover valves and fittings in the solar hot and solar cold pipe work
be fitted up to and cover the connections on both the solar storage tank and the solar collectors.
The insulation 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 as high temperature closed circuit fluid
can flow from the solar collectors to the solar storage tank and also reduce pipe heat losses.
There MUST BE a continuous fall of a minimum 5° (1 in 10 grade) in the pipe work between the
solar collector and solar storage tank for efficient and effective drain back to occur. The highest point
of the solar cold pipe and solar hot pipe must be where they connect to the solar collector.
The system has NO WARRANTY for freeze damage if there is not a continuous fall in the solar hot
and solar cold pipes, or they are not insulated in accordance with the installation instructions, or the
closed circuit fluid has been incorrectly mixed.
The insulated copper pipe work:
should be fixed at suitable locations to prevent or reduce the possibility of noise from water
hammer and vibration from occurring
is not to be placed or installed in contact with plastic pipe work.
Likewise, plastic pipe work is not to be placed or installed in contact with the insulated copper
pipe work after the solar circuit is installed.
Plastic pipe MUST NOT be used, as it will not withstand the temperature of the closed circuit fluid
generated by the solar collectors under stagnation conditions. The solar collectors can generate
extremely high closed circuit fluid temperatures of up to 150°C. Plastic pipe cannot withstand these
temperatures and MUST NOT be used. Failure of plastic pipe can lead to the release of high
temperature closed circuit fluid and cause severe water damage and flooding.
The pressure applied to the solar circuit and solar collectors during a pressure test of an indirect
closed circuit system MUST NOT exceed 200 kPa, otherwise damage may result to the solar
collectors. Refer to “Pressure Testing” on page 33.

3
CONTENTS
HOUSEHOLDER –We recommend you read pages 4 to 19.
The other pages are intended for the installer but may be of interest.
About Your Water Heater............................................................................................................ 4
Regular Care .............................................................................................................................. 11
Water Supplies........................................................................................................................... 13
Save A Service Call ................................................................................................................... 16
Installation –Solar Storage Tank............................................................................................. 20
Installation –Solar Collectors.................................................................................................. 29
Connections –Plumbing .......................................................................................................... 37
Connections –Electrical........................................................................................................... 41
Auxiliary Pump .......................................................................................................................... 43
Commissioning.......................................................................................................................... 46
Draining The Water Heater ....................................................................................................... 60
Warranty ..................................................................................................................................... 65
Solahart Offices ......................................................................................................................... 68

4
ABOUT YOUR WATER HEATER
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable
water. Its use in an application other than this may shorten its life.
MODEL TYPE
Your Solahart®Streamline indirect closed circuit solar water heater is designed for the solar collectors to be
roof mounted and the solar storage tank to be installed at ground or floor level. The solar storage tank is
suitable for outdoor installation only and with either Solahart „J‟, „KF‟, „LC‟, „LCS‟ or „BT‟ solar collectors. The
system is suitable for installation in areas subject to frost or freeze conditions. Freeze conditions occur below
6°C.
SOLAR OPERATION
The Solahart Streamline indirect closed circuit solar water heater has its vitreous enamel lined solar storage
tank installed at ground or floor level, remotely from the solar collectors. This water heater is an indirect solar
hot water system with a heat exchanger in the solar storage tank.
The heat exchanger is filled with closed circuit fluid and is connected to the solar collectors by insulated
copper pipe work forming a closed circuit. The closed circuit fluid is a solution of a blue, non-toxic food grade
propylene glycol concentrate mixed with water. The closed circuit concentrate is used to lower the freezing
temperature of the closed circuit fluid and provides protection against freezing.
As the sun heats the solar collectors, the increase in temperature activates the pump. The pump switches on
whenever the solar collectors are hotter than the water in the tank and the water requires heating. The pump
moves the closed circuit fluid from the solar storage tank heat exchanger through an insulated copper pipe to
the solar collectors to be heated by the sun‟s energy and then back to the heat exchanger. Heat transfers
from the closed circuit fluid in the heat exchanger to the water stored in the solar storage tank.
This process continues while solar energy is available and until the water in the solar storage tank reaches a
temperature of approximately 75°C. The pump is then deactivated and the closed circuit fluid in the solar
collectors and solar pipe work drains back into the heat exchanger in the solar storage tank.
The closed circuit provides protection to the solar collectors and solar circuit in harsh water areas. The drain
back principle provides protection to the system in freezing conditions.
Automatic safety controls are fitted to the water heater to provide safe and efficient operation.
GAS BOOSTING OPERATION
Water stored in the solar storage tank passes through the gas booster
when a hot tap is opened. The gas booster is for heating the water at
times of low solar energy gain, such as during cloudy or rainy weather, or
during colder months.
Solar heated water can reach temperatures up to 75°C in the solar
storage tank. When the solar heated water temperature is 58°C and
above, the gas booster will not boost the water temperature.
The gas booster operates automatically if heating of the water is required.
When the solar heated water temperature is below 58°C, the gas burners
ignite to provide immediate heating of the water to its preset outlet
temperature setting. The heat produced by the burner is transferred to the
water through the heat exchanger. The water is heated to a constant
temperature by the automatic adjustment of the gas supply to the burner
to suit the water flow rate. The gas burners extinguish when the hot tap is
closed.
Automatic safety controls are fitted to the water heater to provide safe and efficient operation.

ABOUT YOUR WATER HEATER
5
WATER OUTLET TEMPERATURE
This water heater has two outlets. One is a hot water outlet and the other is a tempered water outlet. The
purpose of the hot water outlet is to deliver hot water at between 60°C and 75°C, usually for kitchen and
laundry use. The purpose of the tempered water outlet is to deliver water up to 50°C, usually for bathroom or
ensuite use.
The tempered water outlet is from the tempering valve, located under the pipe cover at the front of the water
heater immediately below the gas booster. The tempering valve is the brass valve with a white plastic cap.
The tempering valve mixes hot water from the solar storage tank and gas booster with cold water from the
mains supply and delivers tempered water from its outlet.
The hot water outlet is located above the tempering valve. Depending upon how the water heater was
installed, either both or only one of these outlets may have been plumbed to the hot water pipe work in the
premises.
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 22, a pressure limiting valve must be
fitted. The supply pressure should be greater than 350 kPa for true mains pressure operation to be achieved.
The supply pressure should be greater than 140 kPa for the rated flow and performance of the gas booster
to be achieved.
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate the closed circuit fluid through the
solar collectors until a temperature of approximately 75°C is
reached in the solar storage tank. During periods of low solar energy
gain, the gas booster will boost the water temperature automatically
to its preset outlet temperature setting when required.
Note: The preset outlet booster temperature setting of the gas
booster cannot be adjusted by the householder. The setting can
only be adjusted by your nearest Solahart Dealer. The factory preset
outlet temperature setting of the gas booster is 60°C.
Note: AS 3498 requires that a water heater provides the means to
inhibit the growth of Legionella bacteria in potable water. This water
heater has an in-series gas booster which can satisfy this AS 3498
requirement provided the gas booster is energised, the booster
preset outlet temperature setting is 70°C or higher and a remote
temperature controller is not used.
Warning: Temperature controllers must not be fitted to an in-series gas booster as part of a solar water
heater system because water at a temperature much higher than the controller setting can be delivered.
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.
The tempered water outlet from this water heater will not deliver temperatures exceeding 50°C, in
accordance with AS 4032.2 There is no statutory requirement to fit a supplementary temperature limiting
device after this outlet if this water heater is installed in other than an early childhood centre, school, nursing
home or a facility for young, aged, sick or disabled people.
typical maximum
temperature from solar gain
maximum recommended
supply temperature to
bathrooms and ensuites
booster factory preset outlet
temperature setting

ABOUT YOUR WATER HEATER
6
WARNING
This water heater is only intended to be operated by persons who have the experience or the knowledge and
the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical,
sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do
not interfere with the water heater.
This water heater uses 240 V AC electrical power for operation of the control systems and the electrically
operated components. The removal of the front covers will expose 240 V wiring. They must only be removed
by a qualified person. The power lead from the water heater must be plugged into a weatherproof electrical
outlet. Take care not to touch the power plug with wet hands.
Care should be taken not to touch the pipe work connecting the solar storage tank and the solar collectors.
Very high temperature closed circuit fluid 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.
Should the water from the water heater appear blue or if blue closed circuit fluid is noticed around the base
of the water heater, this indicates a leak of the closed circuit fluid from the heat exchanger. The closed circuit
fluid is non-toxic and not hazardous to health. Phone your nearest Solahart Dealer to arrange for an
inspection.
SAFETY
This water heater is supplied with temperature sensors, a FlameSafe™ protection system, pressure relief
valves 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 storage tank 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 Solahart. Phone your nearest Solahart Dealer to arrange for an inspection.
Warning: For continued safety of this water heater it must be installed, operated and maintained in
accordance with the Owner‟s Guide and Installation Instructions.
The Solahart warranty may not cover faults if relief valves or other safety devices are tampered with
or if the installation is not in accordance with these instructions.
Do not store flammable or combustible materials near the water
heater. Flammable liquids (such as petrol), newspapers and
similar articles must be kept well away from the water heater and
the flue terminal.
Do not use aerosols, stain removers and household chemicals
near the water heater whilst it is working. Gases from some
aerosol sprays, stain removers and household chemicals become
corrosive when drawn into a flame.
Do not store swimming pool chemicals, household cleaners, etc.,
near the water heater.
Do not place anything on top of the water heater or in contact with
the flue terminal. Ensure the flue terminal is not obstructed in any
way at any time.
Do not use Propane / Butane gas mixtures in a Propane model. A Propane model is designed to operate
on Propane only. The use of Propane / Butane mixture, such as automotive LPG fuel, in a Propane
model is unsafe and can cause damage to the water heater.

ABOUT YOUR WATER HEATER
7
PIPE WORK AND INSULATION
The solar hot and solar cold pipes between the solar storage tank and the solar collectors MUST BE of
copper.
The full length of the solar hot and solar cold pipes MUST BE insulated. The insulation must:
be of a closed cell type or equivalent, suitable for a solar water heating application and capable of
withstanding the temperatures of the fluid generated by the solar collectors under stagnation conditions
be at least 13 mm thick, however thicker insulation may be required to comply with the requirements of
AS/NZS 3500.4
be weatherproof and UV resistant if exposed
extend through any penetrations in the eaves, ceiling and roof
cover valves and fittings in the solar hot and solar cold pipe work
be fitted up to and cover the connections on both the solar storage tank and the solar collectors.
The insulation 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 as high temperature closed circuit fluid can flow from
the solar collectors to the solar storage tank and also reduce pipe heat losses.
There must be a continuous fall in the pipe work from the solar collector to the solar storage tank. The
continuous fall is essential to assist in the drain back function of the solar system.
Plastic pipe MUST NOT be used, as it will not withstand the temperature of the closed circuit fluid generated
by the solar collector under certain conditions (refer to Warning on page 31).
FREEZE PROTECTION
Solar Circuit
The solar circuit must be installed with a continuous fall of a minimum 5° (1 in 10 grade) in the pipe work
from the solar collector to the solar storage tank, with the full length of the solar hot and solar cold pipes
insulated and the system charged with correctly mixed closed circuit fluid to offer protection against freeze
damage. The system has NO WARRANTY for freeze damage if there is not a continuous fall in the solar hot
and solar cold pipes, or they are not insulated in accordance with the installation instructions, or the closed
circuit fluid has been incorrectly mixed (refer to “Terms of the Solahart Warranty” on page 65 and to “Pipe
Work and Insulation” on page 7).
The anti freeze control of the solar circuit is designed so there is no closed circuit fluid in the solar collector or
solar cold and solar hot pipes when the pump is off.
Gas Booster Water Heater
The gas booster has a frost protection system. The frost protection system will protect the gas booster from
damage, by preventing ice forming in the waterways of the gas booster, in the event of freezing conditions
occurring.
Notes:
The gas booster frost protection system will be rendered inoperable if electrical power is not available at
the water heater. Damage caused by freezing due to the unavailability of power at the water heater is
not covered by the Solahart warranty (refer to “Terms of the Solahart Warranty” on page 65).
If it is necessary to switch the power off to the water heater and there is a risk of freezing, then it is
necessary to drain the gas booster (refer to “Draining the Gas Booster Water Heater” on page 9).
Pipe work to and from the water heater must be adequately insulated to prevent freezing.
The water heater is not suitable for installation in areas where the ambient temperature falls below -20°C
(including wind chill factor).
Refer to “Terms of the Solahart Warranty” on page 65.

ABOUT YOUR WATER HEATER
8
RAIN WATER TANK
If the solar collectors and solar pipe work are installed on a section of roof which is part of a rain water runoff
collection system, then it is recommended this section of roof and its gutter be isolated from the rain water
collection system. The gutter should be isolated to a width greater than the solar collectors and pipe work
and must have suitable drainage. This is to ensure in the event of a leak from the solar collectors or pipe
work, a rainwater tank cannot be contaminated with closed circuit fluid.
The closed circuit fluid contains food grade additives (rust inhibitor and anti-freeze agent), is non-toxic and is
harmless to the environment. However, if it enters a rain water tank, it can kill off microscopic algae which
are typically present in the water causing an unpleasant odour to develop and resulting in the rain water tank
having to be drained and cleaned.
SOLAR MONITOR
The solar storage tank incorporates a solar monitor. The solar monitor is located on the lower front cover and
houses both a green and a red LED.
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.
The operational modes are:
Flashes
Operational Modes
solid green
(remains on)
Standby mode
2 x green
Flooding solar circuit
3 x green
Pump flow control
4 x green
Pump flow established
5 x green
Tank at maximum temperature
no green
(remains off)
Call for service
If the power supply to the water heater is on and the green LED is off or the red LED is flashing, this
indicates there is a fault with the water heater. The red LED may emit up to six flashes in each series of
flashes. Count the number of flashes and phone your nearest Solahart Dealer to arrange for an inspection.
PRECAUTIONS
Where damage to property can occur in the event of the water heater leaking, the water heater must be
installed in a safe tray. Construction, installation and draining of a safe tray must comply with AS/NZS 3500.4
and all local codes and regulatory authority requirements.
The water heater must be maintained in accordance with the Owner‟s Guide and Installation Instructions.
Refer to “Regular Care” on page 11 and to “Anode Inspection and Replacement” on page 14.
If this water heater is to be used where an uninterrupted hot water supply is necessary for your application or
business you should ensure that you have back up redundancy within the hot water system design. This
should ensure the continuity of hot water supply in the event that this water heater were to become
inoperable for any reason. We recommend you seek advice from your plumber or specifier about your needs
and building back up redundancy into your hot water supply system.

ABOUT YOUR WATER HEATER
9
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 power outlets to the solar storage tank and gas booster if there is
no risk of freezing conditions occurring (refer to note below).
Close the gas isolation valve at the inlet to the water heater.
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 gas booster should not be switched
off unless the gas booster is drained, otherwise damage could result (refer to “Freeze Protection” on page 7
and “Draining the Gas Booster Water Heater” on page 9).
TO TURN ON THE WATER HEATER
Screw in the drain plugs at the cold water inlet and hot water outlet of the gas booster if the gas booster
has been drained.
Open the cold water isolation valve fully at the inlet to the water heater.
Open all of the hot water taps in the house (don‟t forget the shower).
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Open the gas isolation valve fully at the inlet to the water heater.
Plug in the solar storage tank and gas booster at their power outlets and switch on the electrical supply.
The power outlets must be switched on for the solar controls to operate and solar gain to be achieved
and for the gas booster to operate.
The gas booster will operate automatically when you open a hot tap, if boosting is required.
DRAINING THE GAS BOOSTER WATER HEATER
Turn off the water heater (refer to “Turn Off The Water Heater” on page 9).
Open a hot tap (preferably the shower outlet).
Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of
the gas booster.
Water will drain from the gas booster.
When water stops flowing from the gas booster, close the hot tap.
Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.

ABOUT YOUR WATER HEATER
10
GOING ON HOLIDAYS
It is not necessary to switch off the electrical supply at the power outlet to the water heater if you are going
away. However, if it is necessary to switch off the power to the water heater, refer to “To Turn Off The Water
Heater” on page 9. If the power to the water heater is switched off and there is a risk of freezing, then it is
necessary to drain the gas booster (refer to “Draining the Gas Booster Water Heater” on page 9).
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
Installation requirements are shown on pages 20 to 28. The water heater must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000, AS 5601 or AS/NZS 5601.1, as applicable
under local regulations, and all local codes and regulatory authority requirements.
In New Zealand, the installation must also conform with NZS 5261, as applicable under local regulations, and
Clause G12 of the New Zealand Building Code.
Warning: Temperature controllers must not be fitted to an in-series gas booster as part of a solar water
heater system because water at a temperature much higher than the controller setting can be delivered.
Refer also to “Pipe Work and Insulation” on page 7, and to “Rain Water Tank” on page 8.
VICTORIAN CUSTOMERS
Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be
installed by a licensed person as required by the Victorian Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the
relevant Standards. Only a licensed person will have insurance protecting their workmanship for 6 years.
Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate.
DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?
The water heater is suitable for most public water supplies, however some water chemistries may have
detrimental effects on the water heater, components and fittings. Refer to “Water Supplies” on page 13.
If you are in a known harsh water area or you are not sure of your water chemistry, have your water checked
against the conditions described on pages 13 to 15.
HOW LONG WILL THE WATER HEATER LAST?
The water heater is supported by a manufacturer‟s warranty (refer to page 65). There are a number of
factors that will affect the length of service the water heater will provide. These include but are not limited to
the water chemistry, the water pressure, the water temperature (inlet and outlet) and the water usage
pattern. Refer to “Precautions” on page 8.

11
REGULAR CARE
MINOR SIX MONTH MAINTENANCE
It is recommended minor maintenance be performed every six months by the dwelling occupant.
The minor maintenance includes:
Operate the easing lever on the temperature pressure relief valve. It is very important you raise and
lower the lever gently. Refer to “Temperature Pressure Relief Valve” on page 12.
Warning: Exercise care to avoid any splashing of water, as water discharged from the drain line will
be hot. Stand clear of the drain line‟s point of discharge when operating the valve‟s lever.
Operate the easing lever on the expansion control valve (if fitted). It is very important you raise and
lower the lever gently. Refer to “Expansion Control Valve” on page 12.
Check the drain line from the safe tray (if one is installed) is not blocked.
It is also recommended minor maintenance to be performed every six months on the gas booster by the
dwelling occupant. Refer to the Owner‟s Guide and Installation Instructions supplied with the gas booster for
information regarding the recommended six month maintenance.
MAJOR FIVE YEAR SERVICE
It is recommended a major five year service be conducted on the water heater.
Warning: Servicing of a water heater must only be carried out by a qualified person. Phone your nearest
Solahart Dealer.
Note: The five year service and routine replacement of any components, such as the anodes and relief
valves, are not included in the Solahart warranty. A charge will be made for this work. Only genuine
replacement parts should be used on this water heater.
The major service includes the following actions:
Replace the temperature pressure relief valve.
Inspect and flush the expansion control valve (if fitted). If required, replace the valve.
Inspect and if required, replace the anodes.
If an anode is not replaced, it should be replaced within three years of this service (refer to “Anode
Inspection and Replacement” on page 14).
Check the system for correct operation.
Check the closed circuit fluid level.
Clean the collector glass.
Visually check the unit for any potential problems.
Inspect all connections.
Check the drain line from the safe tray (if one is installed) is not blocked.
Note: The solar storage tank may need to be drained during this service. After the completion of the service,
the solar storage tank will take some time to reheat the water by solar gain.
It is also recommended a five year service be conducted on the gas booster. Refer to the Owner‟s Guide and
Installation Instructions supplied with the gas booster for information regarding the recommended five year
service.

REGULAR CARE
12
TEMPERATURE PRESSURE RELIEF VALVE
This valve is near the top of the water heater and is essential for its
safe operation. It is possible for the valve to release a little water
through the drain line during each heating period. This occurs as the
water is heated and expands by approximately 1/50 of its volume.
Continuous leakage of water from the valve and its drain line may
indicate a problem with the water heater (refer to “Temperature
Pressure Relief Valve Running” on page 18).
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.
Warning: Failure to do this may result in the water heater
cylinder failing.
Warning: Exercise care to avoid any splashing of water, as
water discharged from the drain line will be hot. Stand clear of the
drain line‟s point of discharge when operating the valve‟s lever.
If water does not flow freely from the drain line when the lever is
lifted, then the water heater must be checked. Phone your nearest
Solahart Dealer to arrange for an inspection.
The temperature pressure relief valve should be replaced at
intervals not exceeding 5 years, or more frequently in areas where
there is a high incidence of water deposits (refer to “Water Supplies”
on page 13).
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.
Solahart 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 to provide a level of
protection to the collectors against vandalism or accidental damage. Refer to your local Solar Distributor for
details.
GENERAL MAINTENANCE
The jacket of the water heater can be cleaned with a soft cloth and warm mild soapy water. Under no
circumstances should abrasive materials or powders be used.
water
heater
drain
line
lift until water
flows from the
drain line –
lower gently

13
WATER SUPPLIES
This water heater must be installed in accordance with this advice to be covered by the Solahart
warranty.
This water heater is manufactured to suit the water conditions of most public reticulated water supplies.
However, there are some known water chemistries which can have detrimental effects on the water heater
and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to
obtain information from your local water supply authority. This water heater should only be connected to a
water supply which complies with these guidelines for the Solahart warranty to apply.
CHANGE OF WATER SUPPLY
The changing or alternating from one water supply to another can have a detrimental effect on the operation
and / or life expectation of a water heater cylinder, a temperature pressure relief valve and a gas booster‟s
copper heat exchanger.
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 Solahart warranty to apply.
ANODE
The vitreous enamel lined cylinder of the water heater is only covered by the Solahart warranty when the
total dissolved solids (TDS) content in the water is less than 2500 mg/L and when the correct colour coded
anode is used. If an incorrect colour coded anode is used in the water heater, any resultant faults will not be
covered by the Solahart warranty. In addition, the use of an incorrect colour coded anode may shorten the
life of the water heater cylinder.
The correct colour coded anode must be selected and fitted to the water heater in accordance with the
following advice and the Anode Selection chart on page 13 for the Solahart warranty to apply to the water
heater cylinder.
Total Dissolved Solids
Anode colour code
0 –40 mg/L
Green
40 –150 mg/L
Green or Black
150 –400 mg/L
Black
400 –600 mg/L
Black or Blue
600 –2500 mg/L
Blue
2500 mg/L +
Blue (no cylinder warranty)
The changing of an anode must be carried out by a qualified person.
Note: Some water analysis reports may state the conductivity of the water rather than the level of total
dissolved solids. Conductivity, measured in microsiemens per centimetre (µS / cm), is directly proportional to
the TDS content of the water. TDS, in mg / L, is approximately 70% of the conductivity in µS / cm.
CONDUCTIVITY - µS/cm
TOTAL DISSOLVED SOLIDS & CONDUCTIVITY
(vitreous enamel lined water heater cylinder)
40 150 400 600 TOTAL DISSOLVED SOLIDS (TDS) - mg/L
ANODE SELECTION
warranty applies to a vitreous enamel lined water heater cylinder if the
correct coloured anode is used for the TDS / conductivity level of water
2500
3570
no warranty
applies
to a vitreous
enamel lined
water heater
cylinder
Blue
Black
Green
60 215 570 860
0
0
Blue

WATER SUPPLIES
14
ANODE INSPECTION AND REPLACEMENT
The anodes installed in a vitreous enamel lined steel water heater cylinder will slowly dissipate whilst
protecting the cylinder. The life of the cylinder may be extended by replacing the anodes.
If the anodes are not replaced during a five year service (refer to “Major Five Year Service” on page 11) then
the maximum time after installation when the anodes should be replaced for this 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 anodes be replaced
within 5 years of installation.
CAUTION
If the water supply has a TDS greater than 150 mg/L and a green anode has not been changed to a black
anode, or if the TDS is greater than 600 mg/L and an anode has not been changed to a blue anode, there is
the possibility the anode may become overactive and hydrogen gas could accumulate in the top of the water
heater during long periods of no use.
If, under these conditions, the water heater has not been used for two or more weeks the following procedure
should be carried out before using any electrical appliances (automatic washing machines and dishwashers)
which are connected to the hot water supply.
The hydrogen, which is highly flammable, should be vented safely by opening a hot tap and allowing the
water to flow. There should be no smoking or naked flame near the tap whilst it is turned on. Any hydrogen
gas will be dissipated. This is indicated by an unusual spurting of the water from the tap. Once the water runs
freely, any hydrogen in the system will have been released.
SATURATION INDEX
The saturation index is used as a measure of the water‟s corrosive or scaling properties.
In a corrosive water supply, the water can attack copper parts and cause them to fail.
Where the saturation index is less than –1.0, the water is very corrosive and the Solahart warranty does not
apply to a copper heat exchanger in a continuous flow water heater.
In a scaling water supply calcium carbonate is deposited out of the water onto any hot metallic surface.
Where the saturation index exceeds +0.40, the water is very scaling. An expansion control valve must be
fitted on the cold water line after the non-return valve to protect and for the Solahart warranty to apply to the
temperature pressure relief valve and water heater cylinder.
Where the saturation index exceeds +0.80, the Solahart warranty does not apply to a copper heat exchanger
in a continuous flow gas booster water heater.
Water which is scaling may be treated with a water softening device to reduce the saturation index of the
water.
Refer to the Saturation Index chart on page 15.
Refer to the cold water connection detail on page 37 for the position of the expansion control valve.

WATER SUPPLIES
15
-1.0
no warranty applies to a:
temperature pressure relief valve or a
water heater cylinder unless an
expansion control valve is fitted.
no warranty applies to a:
-direct (open circuit) solar collector -continuous flow copper heat exchanger
SATURATION INDEX (SI)
SOLAR WATER HEATERS - INTEGRATED GAS BOOST (CONTINUOUS FLOW)
WITHIN WARRANTY
SPECIFICATION
SATURATION INDEX
(calculated @ 80°C water temperature)
no warranty applies to a:
-direct (open circuit) solar collector -continuous flow copper heat exchanger
+0.4 +0.80
very corrosive very scaling
scaling
corrosive
SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY
The water heater, solar collectors and their components are not suitable for certain water chemistries. Those
chemistries are listed below. If the water heater is connected at any time to a water supply with the following
water chemistry, the Solahart warranty will not cover any resultant faults on the components listed below:
Water Chemistry
Component
Total Dissolved Solids (TDS) > 2500 mg/L
water heater cylinder
Total Dissolved Solids (TDS) not suitable for anode type
water heater cylinder
Saturation Index (SI) < -1.0
gas booster copper heat exchanger
Saturation Index (SI) > +0.4
(if an expansion control valve is not fitted)
temperature pressure relief valve,
water heater cylinder
Saturation Index (SI) > +0.8
gas booster copper heat exchanger

16
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.
COLD WATER FROM THE HOT TAP
Close the hot tap, wait 10 seconds and open the hot tap again.
Is the hot tap open enough?
The minimum operating flow rate is 3.0 L / min.
Solar control unit and gas booster not operating
Check the power supply cord is plugged in and the power
outlet switched on.
Is power available in the house?
Try using another electrical appliance.
Gas supply
Is the isolation valve in the gas line open?
Is there a gas supply to the rest of the house?
Try lighting another gas appliance.
Has the gas line been purged of air after installation?
Refer to your plumber.
NO WATER FROM THE HOT TAP
No flow of water from the hot tap may indicate a restriction in or failure of the cold water supply to the water
heater. Check for water flow at other taps and that the cold water isolation valve (refer to page 37) is fully
open.
WATER FLOW FLUCTUATES
More than two or three hot taps in use at the same time may cause a decrease in the hot water flow from the
taps.
Is there more than two or three hot taps open, or are appliances such as a dishwasher or washing
machine, in use at the same time?
Ensure only two or three hot taps (or appliance) are on at the one time.
Check the flow of the water from one tap, e.g., the shower.
The shower should be adjusted so the hot tap is fully open.

SAVE A SERVICE CALL
17
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 58°C, which may be experienced during periods of low solar energy
gain or if there has been heavy hot water usage. Factors to consider are:
Hot tap not used recently
If a hot tap has not been used for a while, the water in the pipe work between the solar water heater and
the gas booster may have cooled down. The water heater will sense the cooler water and this will cause
the burners on the water heater to ignite and boost the water temperature when a hot tap is first turned
on. The burners will extinguish when solar heated water of 58°C or higher from the solar storage tank
reaches the gas booster (refer also to “Fan Continues to Run after Water Heater Operation Stops” on
page 17).
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.
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 the
obstruction is permanent or clean the collector glass (refer to “Collector Glass” on page 12).
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.
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, basin and sink to reduce water
usage.
Temperature pressure relief valve running
Is the relief valve discharging too much water?
Refer to “Temperature Pressure Relief Valve Running” on page 18.
Green LED is off or red LED is flashing on Solar Monitor
If the green LED is off or the red LED is flashing on the Solar Monitor label, 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.
Switch off the electrical supply at the power outlet to the solar storage tank for a few seconds, then
switch on again.
If the green LED remains off or the red LED recommences to flash, then count the number of flashes
and phone your nearest Solahart Dealer to arrange for an inspection.
FAN CONTINUES TO RUN AFTER WATER HEATER OPERATION STOPS
It is the normal operation of the gas booster for the fan to continue running after heating of the water is
finished. The fan may run for up to six minutes after the burners extinguish, to prepare for the next ignition.

SAVE A SERVICE CALL
18
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
It is normal and desirable this valve allows a small quantity of water to
escape during the heating cycle. However, if it discharges more than a
bucket full of water in 24 hours, there may be another problem.
Continuous dribble
Try gently raising the easing lever on the relief valve for a few seconds
(refer to “Temperature Pressure Relief Valve” on page 12). This may
dislodge a small particle of foreign matter and clear the fault. Release
the lever gently.
Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes rises above
the designed pressure of the water heater. Ask your installing plumber
to fit a pressure limiting valve.
Warning: Never replace the relief valve with one of a higher
pressure rating.
Heavy flows of hot water until 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 37)it may
discharge a small quantity of water instead of the temperature pressure relief valve on the water heater. The
benefit is that energy is conserved as the discharged water is cooler.
PRESSURE RELIEF VALVE DISCHARGING
A pressure relief valve is incorporated into the gas booster controls. This valve protects the gas booster, by
allowing water to escape, in the event of excessive pressure build up in the waterways.
Normal operation
A small volume of water may discharge from the bottom of the gas booster when a hot tap is suddenly
closed.
Continuous dribble
A continuous dribble may indicate the water supply pressure is above
the design pressure for the gas booster. If so, a pressure limiting valve
must be installed on the cold water supply pipe to the water heater
(refer to “Mains Water Supply” on page 22).
CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL
During the heating cycle, it is not unusual to see water vapour clouds
steaming from the flue terminal, particularly on cold days. This is normal
operation of the gas booster.
ERROR CODE
The water heater provides a diagnostic error code in the event of an
interruption to its operation. The error code is displayed on the front of the
water heater on the OK MONITOR as a numerical value. If an error code
appears:
Close the hot tap and switch off the electrical supply to the water
heater.
Wait 5 minutes, then switch on the electrical supply to the water heater
and open a hot tap.
If the error code persists, take note of the numerical code and turn off the
hot tap. Phone your nearest Solahart Dealer to arrange for inspection.

SAVE A SERVICE CALL
19
HIGHER THAN EXPECTED GAS BILLS
With the installation of your new solar hot water system, maximum gas energy savings can be achieved with
careful planning of hot water usage. Should you at any time, feel your gas account is higher than expected,
we suggest you check the following points:
Is the relief valve running excessively?
Refer to “Temperature Pressure Relief Valve Running” on page 18.
Is one outlet (especially the shower) using more hot water than
you think?
Refer to “Gas Booster Operating Too Frequently”on page 17.
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.
Is the gas booster operating too frequently?
Refer to “Gas Booster Operating Too Frequently” on page 17.
Has there been an increase in hot water usage?
An increase in hot water usage may result in an increase in booster operation.
Has your water heating tariff rate been increased by your gas retailer since your previous account?
COLLECTOR GLASS
The Solahart warranty DOES NOT cover breakage of solar collector glass. Check your household insurance
policy covers collector glass breakage.
Warning: No attempt should be made to remove or replace broken collector glass.
The collector glass is not offered as a replacement part. Should the solar collector require replacement,
contact your nearest Solahart Dealer.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE,
PHONE YOUR NEAREST SOLAHART DEALER.

20
INSTALLATION –SOLAR STORAGE TANK
THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY.
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.
Check the water heater is suitable for the gas type available.
(refer to the rating label on the water heater)
The system is suitable for installation with Solahart „J‟, „KF‟, „LC‟, „LCS‟ or „BT‟ solar collectors.
IMPORTANT NOTES
Working on roofs is and should always be considered a hazardous activity, particularly early in the
morning, late in the evening, when the roof is wet or 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. In particular, the requirements for safety whilst manual lifting, working at
heights and on roofs.
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 hot water system.
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 Solahart
warranty.
All packaging must be removed from the water heater prior to its installation. This includes the removal
of the cardboard base of the carton from the underside of the water heater.
INSTALLATION STANDARDS
The water heater must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000, AS 5601 or AS/NZS 5601.1, as applicable
under local regulations, and all local codes and regulatory authority requirements.
In New Zealand, the installation must also conform with NZS 5261, as applicable under local regulations, and
Clause G12 of the New Zealand Building Code.
Warning: Temperature controllers must not be fitted to an in-series gas booster as part of a solar water
heater system because water at a temperature much higher than the controller setting can be delivered.