Solahart Streamline Electric User manual

“Streamline Gas”
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 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.

PATENTS
This water heater may be protected by one or more patents or registered designs.
® Registered trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.
™ Trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.
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.
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.
•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. Refer to Warning on page 30.
•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. Due to the higher water temperatures
generated under certain conditions in the solar collectors of this solar water heater, an
additional effective back-flow prevention device also should be used as an extra safeguard.
Valve manufacturer RMC recommends Dual Check Valve model N7150, as being suitable for
this application.
Warning: Upon completion of the installation and commissioning of the water heater, leave this
guide with the householder or a responsible officer. DO NOT leave this guide inside of the cover of
the water heater, as it may interfere with the safe operation of the water heater or ignite when the
water heater is turned on.

3
CONTENTS
HOUSEHOLDER – We recommend you read pages 4to 20.
The other pages are intended for the installer but may be of interest.
Introduction ...................................................................................................... 4
About Your Water Heater................................................................................. 5
How Your Water Heater Works...................................................................... 10
Regular Care ................................................................................................... 11
Timer Operation.............................................................................................. 13
Save A Service Call ........................................................................................ 17
Installation – Solar Storage Tank.................................................................. 21
Installation – Solar Collectors ....................................................................... 29
Connections – Plumbing ............................................................................... 31
Connections – Electrical................................................................................ 34
Commissioning .............................................................................................. 36
Lighting The Water Heater............................................................................. 38
Draining The Solar Collectors ....................................................................... 41
Draining The Water Heater ............................................................................ 42
Water Supplies ............................................................................................... 44
Warranty.......................................................................................................... 45
Solahart Offices.............................................................................................. 48

4
INTRODUCTION
Congratulations on choosing a “STREAMLINE GAS” 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 GAS” water heater will provide you reliable hot water with quality after sales service
back up.
Thankyou

5
ABOUT YOUR WATER HEATER
MODEL TYPE
Congratulations for choosing a Solahart®water heater. Your Solahart Streamline™ 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 outdoor installation only 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 9). Freeze conditions occur below 6°C. The system has
NO WARRANTY for freeze damage (refer to “Warranty Exclusions” on page 45 and to “Pipe Work and
Insulation” on page 7).
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate water through the solar
collectors until a temperature of approximately 75°C is reached.
During periods of low solar energy gain, the water temperature
can be boosted by the thermostatically controlled gas burner.
The boosting is controlled by both the timer unit and the gas
control thermostat.
typical
maximum temperature
maximum
booster setting
minimum recommended
stored water
temperature
maximum recommended
supply temperature to
bathrooms and ensuites
The water heater features a user adjustable thermostat, which
allows you to personally choose the most suitable boosting
temperature for your hot water needs. Refer to “Temperature
Adjustment” on page 5.
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 temperature adjusting dial is on the gas valve, behind the
access cover on the lower front of the water heater. A setting of
‘6’ will normally provide a boosted water temperature of about
60°C. Each number represents a temperature difference of
approximately 6°C.
To increase the boosted water temperature to 65°C, turn the gas
control knob counter-clockwise to a setting of ‘7’. Refer to “Hotter
Water Increases the Risk of Scald Injury” on page 5.

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 side access panel 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 electrical conduit to the water heater is damaged, it must be replaced by an authorised person in
order to avoid a hazard. 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.
•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.
•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
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater:
•Shut down the gas control (refer to “Close Down Procedure” on page 40).
•Close the gas isolation valve at the inlet to the gas control.
•Switch off the electrical supply at the isolating switch to the water heater (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
Protection” on page 9).
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
bleed the collector circuit (refer to “Bleeding the Solar Collectors” on page 8).
•If the electrical supply to the water heater has been switched off, switch on the electrical supply at
the isolating switch. The isolating switch must be switched on for the solar control unit to operate
and solar gain to be achieved.
•Open the gas isolation valve fully at the inlet to the gas control.
•Light the water heater (refer to “Lighting the Water Heater” on page 38).
•Ensure the timer is programmed (refer to “Timer Operation” on page 13).
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
Installation requirements are shown on page 27. The water heater must be installed by an authorised
person and the installation must comply with National Standards AS/NZS 3500.4, AS/NZS 3000,
AS 5601 and all local codes and regulatory authority requirements. In New Zealand, the installation
must conform with the Code of Practice for installation of Gas Appliances NZS 5261 and the New
Zealand Building Code. The timer is not weatherproof and must be installed indoors.
PIPE WORK AND INSULATION
The solar hot and solar cold pipe work 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). 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
generated by the solar collectors under certain conditions (refer to Warning on page 30).

ABOUT YOUR WATER HEATER
8
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
area you must read page 44.If you are not sure, have your water quality checked against the
conditions described on page 44.
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 water heater is supported by a comprehensive warranty (refer to page 46).
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 replacing it 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 be
inspected 3 years earlier than shown (refer to “Water Supplies” on page 44).
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 pipe
work 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).
•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.

ABOUT YOUR WATER HEATER
9
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
(refer to “Warranty Exclusions” on page 45 and to “Pipe Work and Insulation” on page 7).
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.
•Refer to “Warranty Exclusions” on page 45.

10
HOW YOUR WATER HEATER WORKS
The Solahart Streamline system has its vitreous enamel lined solar storage tank installed at ground
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 leaving 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 75°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 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. A
minimum water supply pressure of 200 kPa is required to enable
the solar circulator and solar circuit system to operate effectively.
GAS BOOSTING
Water stored in the solar storage tank can be heated by a gas
burner located under the cylinder. The gas burner 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 boost water
temperature is determined by the gas control thermostat setting.
The gas burner is also controlled via a timer unit installed inside the
house. It is recommended the timer be set to enable boosting
between 4:00 PM and 6:30 PM. This will allow boosting of the
water temperature before the main evening hot water usage period,
but after the main solar heating period of the day. The timer unit
has a manual “OVERRIDE” to allow boosting outside of the set
hours (refer to “Timer Operation” on page 13).
Note: The gas burner will only light if the temperature of the water in the solar storage tank is below the
gas control thermostat setting.
PIEZO IGNITION
The “Piezo” push button igniter makes lighting the pilot flame of
your water heater very easy. Simply follow the instructions on the
label attached to the back of the access door. There is no need for
matches to light the water heater.
PILOT IGNITER
A permanent pilot flame burns to ignite the main burner
automatically for boosting. Heat from the pilot is absorbed by the
water.
GOING ON HOLIDAYS
If you are going on holiday for more than a few days the thermostat can be set to its lowest setting (‘1’)
to conserve energy. Alternatively, the timer can be set so the burner will not activate during the period
you are away (refer to “Timer Operation” on page 13). If it is necessary to turn off the water heater, refer
to “To Turn Off The Water Heater” on page 7. Also if the system is not used for a period in excess of
two (2) weeks it is recommended the solar collectors be covered.

11
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.
water
heater
drain
line
lift until water
flows from the
drain line –
lower gently
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.
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.
The temperature pressure relief valve should be
checked for performance or replaced at intervals not
exceeding 5 years, or more frequently in areas where
there is a high incidence of water deposits (refer to
“Water Supplies” on page 44).
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.
SERVICING
For safe and efficient operation, the water heater should be serviced annually by your nearest Solahart
Dealer. Only genuine replacement parts should be used on this water heater.
Warning: Servicing of a gas water heater should only be carried out by authorised personnel.

REGULAR CARE
12
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.
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, when the water temperature inside the solar
collector(s) is lower.
•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.
•To flush the solar collectors, follow the procedure “Bleeding the Solar Collectors” on page 8,
allowing the water to flow from the bleed valve drain line for five (5) minutes before closing the
bleed valve.
It is recommended to flush the solar collectors every five (5) years. This will assist in keeping the solar
collectors, solar cold pipe and solar hot pipe clear of sediment.

13
TIMER OPERATION
FUNCTIONS OF THE TIMER
The timer is an accurate, electronic device which allows up to six (6) ON-OFF periods to be set per day.
It is recommended only one (1) period per day be programmed into the timer. This will be sufficient for
most installations. The timer is not weatherproof and must be installed indoors. It is recommended the
timer be located in the kitchen or laundry or other location easily seen by the householder.
DAY Press this button to select the actual day switching operations. Switching programme options
and their order of appearance on the screen are:
Select seven days a week: ‘MO TU WE TH FR SA SU’ will be displayed.
Select one day only: The selected day only will be displayed, i.e., ‘MO’ (Monday),
‘TU’ (Tuesday), ‘WE’ (Wednesday), ‘TH’ (Thursday), ‘FR’ (Friday), ‘SA’ (Saturday),
‘SU’ (Sunday).
Select Monday to Friday only: ‘MO TU WE TH FR’ will be displayed.
Select Saturday and Sunday only: ‘SA SU’ will be displayed.
Select Monday to Saturday only: ‘MO TU WE TH FR SA’ will be displayed.
Note: The DAY button will only operate in conjunction with the time and program buttons.
PROG Press this button once to activate the program
function. It allows the “ON” and “OFF” times to be set
and the “DAY” selection to be made.
TIME PROG DAY HR MIN
zzzzz
RANDOM
yRzMAN
TIME Press this button to set the current day and time and
to complete the programming operation.
HR Press this button to set the hours.
MIN Press this button to set the minutes.
MAN Press this button to turn the “OVERRIDE” function
on or off.
R Press this button to delete all programmed
information from the memory.
Note: Each press of a button will advance the setting by one
increment. Pressing a button continuously will scroll through
the settings.
The function of the timer is to enable the gas burner to automatically boost the stored water
temperature, if required, due to low solar energy gain during the day. This will ensure the solar storage
tank is full of hot water for the evening hot water requirements.
Warning: The timer is not waterproof. Do not splash the timer with water.
BATTERY BACKUP
The timer has an inbuilt rechargeable battery. If a power failure occurs, the rechargeable battery will
maintain the memory of the timer, avoiding the loss of any set programs.
Note: The rechargeable battery may be run down at the time of installation. Connecting to mains power
will recharge the battery.

TIMER OPERATION
14
RECOMMENDED TIMER ON/OFF SETTING
It is recommended the timer be set to enable boosting between 4:00 PM (16:00 Hours) and
6:30 PM (18:30 Hours).
Note: The timer uses a 24 hour clock.
This two and a half hour boosting period is sufficient to allow the gas burner to heat up the entire
contents of the solar storage tank through a 45°C temperature rise. This may be necessary during
periods of very low solar energy gain through the solar collectors, such as during constant rain or
extremely cloudy weather.
It may be necessary and is recommended to reset the timer during daylight saving time (in the states
where applicable), to enable boosting between 5:00 PM (17:00 Hours) and 7:30 PM (19:30 Hours), to
maximise the solar energy gain during this period.
RESET THE TIMER
It is recommended the timer be reset before commencing the initial programming. This will delete any
set programs.
•Press the “R” (reset) button gently to reset the timer.
Use a non-metallic object like a wooden or plastic
toothpick.
MO TU WE TH FR SA SU
TIMER
ON A
OFF P
88:88
Warning: Do not use a sharp metal object as this
may pierce the protective membrane and an electric
shock may result.
Note: When the “R” (reset) button is pressed, the entire screen is illuminated and all programs,
including the current time, are deleted from the timer’s memory.
TO SET THE TIME
Example: Setting the current time as
Sunday at half past one in the afternoon
i.e. 1:30 PM.
SU
OFF 13:30
•Press and hold the “TIME” button.
•Press the “DAY” button to select the current day.
TIME PROG DAY HR MIN
zzzzz
RANDOM
yR zMAN
•Press the “HR” button to select the current hour
(Note: 24 hour clock).
•Press the “MIN” button to select the current minute.
•Release the 'TIME' button.
•The current time is now set.

TIMER OPERATION
15
TO SET ON/OFF TIMES
To set “ON” time
•Press and release the “PROG” button
If the timer has been reset, then “TIMER – ON”,
“– – :– –” and “MO TU WE TH FR SA SU” will be
displayed on the screen.
If the timer has not been reset, then the current “ON”
time program will be displayed on the screen.
•Press the “DAY” button to select the days of
operation. Refer to “Functions of the Timer” on
page 13.
The selected days will be displayed on the screen.
Note: There is no need to make an adjustment to the “DAY” display if “MO TU WE TH FR SA SU”
is displayed on the screen and it is desired to set the timer function for seven day operation.
•Press the “HR” button to select the “hour on” time (Note: 24 hour clock).
TIME PROG DAY HR MIN
zzzzz
RANDOM
yRzMAN
MO TU WE TH FR SA SU
TIMER
OFF 18:30
MO TU WE TH FR SA SU
TIMER
ON
16:00
TIME PROG DAY HR MIN
zzzzz
RANDOM
yRzMAN
Example: Setting the “ON” time as
4:00 PM (16:00 hours) for seven day a
week boosting.
•Press the “MIN” button to select the “minute on” time.
To set “OFF” time
•Press and release the “PROG” button.
If the timer has been reset, then “TIMER – OFF”,
“– – :– –” and “MO TU WE TH FR SA SU” will be
displayed on the screen.
If the timer has not been reset, then the current “OFF”
time program will be displayed on the screen.
•Press the “DAY” button to select the days of
operation. Refer to “Functions of the Timer” on
page 13.
Example: Setting the “OFF” time as
6:30 PM (18:30 hours) for seven day a
week boosting.
The selected days will be displayed on the screen.
Note: There is no need to make an adjustment to the “DAY” display if “MO TU WE TH FR SA SU”
is displayed on the screen and it is desired to set the timer function for seven day operation.
•Press the “HR” button to select the “hour off” time (Note: 24 hour clock).
•Press the “MIN” button to select the “minute off” time.
Note: Six (6) “ON” and “OFF” times are available and each can be set by following the above
procedure. It is recommended only one “ON” and “OFF” time is set.
•Press and release the “TIME” button to exit the program mode. The current time is displayed. The
timer is now programmed to operate.
Note: The program automatically sets after approximately two minutes if the “TIME” button is not
pressed.

TIMER OPERATION
16
Note: If the timer is not set with an ON-OFF period, the solar water heater will not boost automatically.
If the “MAN” button is pressed to activate the manual boosting “OVERRIDE” function and an ON-OFF
period has not been set, the solar water heater will remain in boosting mode until the “MAN” button is
pressed again to deactivate the manual boosting “OVERRIDE” function (refer to “Manual Boosting –
“OVERRIDE” Function” on page 16). During this time, only minimal solar gain may be achieved.
MANUAL BOOSTING – “OVERRIDE” FUNCTION
TIME PROG DAY HR MIN
zzzzz
RANDOM
yR zMAN
SU
ON 09:15
The timer also has an “OVERRIDE” function to allow for
boosting the temperature of the water in the solar storage
tank, outside of the set hours.
•To activate manual boosting, press the “MAN” button
once.
The word “ON” appears in the display.
•When the water has been heated to the temperature
setting of the gas control, the gas burner will
automatically extinguish.
Example: The Manual Boosting
“Override” function “ON” at quarter past
nine on Sunday morning.
•To deactivate the manual boosting, press the “MAN”
button once.
TIME PROG DAY HR MIN
zzzzz
RANDOM
yRzMAN
WE
OFF
15:10
The word “OFF” appears in the display.
Note: This is necessary to prevent further boosting of
the water temperature, whenever hot water is used.
This could potentially reduce the solar gain for one
day.
•If the “OVERRIDE” function is not manually
deactivated, it will automatically be deactivated at the
end of the next timer set boost period.
Example: The Manual Boosting
“Override” function “OFF” at ten past
three on a Wednesday afternoon.
CAUTION – “RANDOM” FUNCTION
The timer features a “RANDOM” function setting, indicated by the word “TIMER” flashing in the display.
The “RANDOM” function will cause the timer to switch ON and OFF completely at random, regardless
of any set programmes. If the “RANDOM” function is inadvertently set, press the “DAY” and “HR”
buttons simultaneously to deactivate (the word “TIMER” disappears from the display).
Note: It is recommended the “RANDOM” function never be used.

17
SAVE A SERVICE CALL
Check the items below before making a service call. You will be charged for attending to any condition
or fault that is not related to 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 timer and gas booster.
•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 activate the gas boosting
more often (refer to “Manual Boosting – Override
Function” on page 16).
•Pilot flame alight?
Check the pilot flame is burning by removing the access
cover. Relight the pilot flame according to the lighting
instructions (refer to “Lighting the Water Heater” on
page 38).
•Gas burner not operating
Inspect the isolating switch (adjacent to the water heater or at the switch board marked “HOT
WATER” or “WATER HEATER”) and ensure it is turned “ON”.
Note: Check the settings on the TIMER are sufficient to allow a full boosting cycle (2½ hours, from
4:00 PM to 6:30 PM, is recommended).
•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.
•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
Solar Collectors” on page 8).
•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 fit a flow control valve to each shower outlet to reduce water usage.
•Temperature pressure relief valve running
Is the relief valve discharging too much water? (Refer to “Temperature Pressure Relief Valve
Running” on page 18).

SAVE A SERVICE CALL
18
•Thermostat setting
Ensure the thermostat setting is appropriate. You may choose to adjust the thermostat upwards to
gain additional hot water capacity when boosting.
Warning: Hotter water increases the risk of scald injury.
•Water heater size
Do you have the correct size water heater for your requirements? The sizing guide in the sales
literature and on the Solahart website (www.solahart.com.au) suggests average sizes that may be
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 gas burner to boost the
water temperature on such occasions.
A lower water temperature may also be noticed in the morning if the gas boosting has not been used.
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
Valve” on page 11). This may dislodge a small particle of
foreign matter and clear the fault. Release the lever
gently.
•Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes
rises above the designed pressure of the water heater.
Ask your installing plumber to fit a pressure limiting valve.
Warning: Never replace the relief valve with one of a higher pressure rating.
•Heavy flows of hot water until the water heater is cold - then stops until water reheats
The gas control must be turned off using the knob on top of the gas control thermostat (refer to
“Close Down Procedure” on page 40). Phone your nearest Solahart Dealer to arrange for
inspection.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater (refer to page 31)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.

SAVE A SERVICE CALL
19
TIMER APPEARS TO BE FUNCTIONING INCORRECTLY
Check the following:
•Has the programming been set correctly? Check the programmed “ON” and “OFF” times (refer to
“Timer Operation” on page 13).
•Has the “R” (reset) button been inadvertently pressed? Reprogram the timer.
•Has the timer been set to the “RANDOM” function? Deactivate the “RANDOM” function (refer to
“Caution - Random Function” on page 16).
CAN’T LIGHT THE PILOT FLAME
•Is there gas to the water heater?
Check the gas isolation valve on the gas supply line is
open.
•Is there a normal gas supply to the rest of the
premises?
Try lighting another gas appliance to check. If there is no
gas, call the gas supplier.
WATER HEATER APPEARS TO BE LEAKING
When the water heater is first lit, or after a large usage of hot
water, condensation may form on the burner of the water
heater. This is quite normal, especially in winter months and
will dry off as the water is heated.
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.

SAVE A SERVICE CALL
20
HIGH 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 too high, 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 “Not Enough Hot Water” 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 gas. Replace faulty tap washers and have
your plumber rectify any leaking pipe work.
•Are you using the gas boosting properly? (Refer to “Timer
Operation” on page 13).
•Consider recent changes to your hot water usage pattern and check if there has been any increase
in tariffs since your previous account.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE,
CALL YOUR NEAREST SOLAHART DEALER.