Rheem Water Heater Solar Loline Conversion Kit Electric Wter Heater User Guide

Owners Guide  
and  
Installation Instructions  
Solar Loline Conversion Kit  
Electric Water Heater  
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.  
This water heater must be installed and serviced by an authorised person.  
Please leave this guide with the householder.  
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CONTENTS  
HOUSEHOLDER – We recommend you read pages 4 to 17.  
The other pages are intended for the installer but may be of interest.  
About your water heater ..................................................................... 4  
Regular care ......................................................................................... 9  
How your water heater works ........................................................... 10  
Save a service call ............................................................................. 14  
Installation – Solar storage tank ...................................................... 18  
Installation – Solar control unit ........................................................ 24  
Installation – Solar collectors ........................................................... 27  
Connections – Plumbing ................................................................... 28  
Connections – Electrical ................................................................... 32  
Commissioning .................................................................................. 34  
Draining the solar collectors ............................................................ 36  
Draining the water heater .................................................................. 36  
Water supplies ................................................................................... 38  
Warranty ............................................................................................. 40  
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ABOUT YOUR WATER HEATER  
MODEL TYPE  
Congratulations for choosing a Rheem electric water heater and a Rheem solar  
conversion kit. The Rheem solar conversion kit converts your Rheem electric water  
heater into a Rheem solar Loline water heater. Your Rheem solar Loline water  
heater is designed for the solar collectors to be roof mounted and the solar storage  
tank to be installed at ground level. The solar storage tank is suitable for either  
outdoor or indoor installation. The system is suitable for installation, and offers  
protection against freeze damage, in areas up to 800 metres altitude. The system is  
not covered for freeze damage above 800 metres altitude (refer to “Warranty” on  
page 40).  
The model you have chosen will be either a Rheemglas or an Optima model. The  
Optima model has a temperature adjusting knob on the lower front of the water  
heater. Both the Rheemglas and Optima models are available with either a single  
element or with twin elements (refer to “Single Element Models” on page 11 and  
“Twin Element Models” on page 11).  
HOW HOT SHOULD THE WATER BE?  
The solar control unit will circulate water  
Typical Maximum  
through the solar collectors until a  
Temperature from  
temperature of approximately 75LC is  
Solar Gain and  
reached. During periods of low solar  
energy gain, the water temperature can  
be boosted by the thermostatically  
controlled electric booster heating unit.  
This may be operated manually or  
automatically depending on how it is  
wired. Refer to pages 12 and 13 or check  
with your electrician.  
Optima Maximum  
Thermostat Setting  
Top Element  
Thermostat Setting  
(not adjustable)  
Rheemglas  
Maximum  
Thermostat  
Setting  
Minimum  
Thermostat Setting  
and Recommended  
Stored Water  
The Optima model features a user  
adjustable thermostat, which allows you to  
Temperature  
choose  
temperature for your hot water needs. The  
Rheemglas model features  
the  
most  
suitable  
boost  
Maximum  
Recommended Supply  
Temperature to  
a
Bathrooms and Ensuites  
tradesperson adjustable thermostat. This  
requires a licensed tradesperson to make  
any temperature adjustments. The  
temperature is adjustable within the range  
shown in the diagram opposite.  
For reasons of safety and economy we advise you adjust the thermostat to the  
lowest setting which meets your needs, especially if there are young children or  
elderly people in the home.  
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ABOUT YOUR WATER HEATER  
HOTTER WATER INCREASES THE RISK OF SCALD INJURY  
We recommend, and it may also be required by regulations, that an approved  
temperature limiting device, such as the Rheem Temp-Set, be fitted into the hot  
water piping to the bathroom and ensuite when this water heater is installed. This  
will keep the water temperature below 50LC at the bathroom and ensuite. The risk  
of scald injury will be reduced and still allow hotter water to the kitchen and laundry.  
This temperature limiting device may be required by regulations.  
TEMPERATURE ADJUSTMENT- OPTIMA  
To adjust the temperature, push in the child  
resistant knob and turn anti clockwise to  
decrease or clockwise to increase the  
temperature setting. The Optima has a  
minimum temperature setting of 60LC and a  
maximum temperature setting of 75LC.  
WARNING  
This water heater is not intended to be  
operated, adjusted or tampered with by  
young children or infirm persons. Young  
children should be supervised to ensure  
they do not interfere with the water heater.  
Care should be taken not to touch the pipe work connecting the solar collectors and  
the solar storage tank. Under certain conditions, very high temperature hot water  
can be generated by the solar collectors and flow through the pipe work.  
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:  
Sꢀ Close the cold water isolation valve at the inlet to the water heater.  
Sꢀ Switch off the electrical supply at the isolating switch to the solar storage tank.  
Sꢀ Switch off the electrical supply at the power outlet to the solar control unit  
(refer to note below).  
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 8).  
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ABOUT YOUR WATER HEATER  
TO TURN ON THE WATER HEATER  
Sꢀ Open the cold water isolation valve fully at the inlet to the water heater.  
Sꢀ If the solar collectors and solar hot and cold pipes have been drained, it will be  
necessary to bleed the collector circuit (refer to “Bleeding the Solar Collectors”  
on page 7).  
If the electrical supply to the water heater has been switched off:  
Sꢀ Switch on the electrical supply to the solar storage tank at the isolating switch  
Sꢀ Switch on the electrical supply to the solar control unit at the power outlet.  
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?  
Installation requirements are shown on pages 23 and 26. The water heater must be  
installed by an authorised person and the installation must comply with national  
codes AS/NZS 3500.4.2, AS/NZS 3000, and all local codes and regulatory authority  
requirements. In New Zealand, the installation must conform with the New Zealand  
Building Code.  
Note: The solar hot and cold pipe work between the solar storage tank and the  
solar collectors must be of copper and fully insulated with Armaflex insulation or  
similar (minimum thickness 10 mm). The insulation must be weatherproof if  
exposed and fitted up to the connections on the storage tank, as very high  
temperature water can flow from the solar collectors to the storage tank under  
certain conditions. Plastic pipe must not be used, as it will not withstand the  
temperature of the water generated by the solar collectors under certain conditions  
(refer to Warning on page 29).  
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 38. If you are not  
sure, have your water quality checked against the conditions described on page 38.  
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 Rheem water heater is  
supported by a comprehensive warranty (refer to page 40).  
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ABOUT YOUR WATER HEATER  
ANODE PROTECTION  
The anode 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 and replacing it if required.  
The suggested time after installation when the anode should be inspected is:  
Rheemglas  
Optima  
8 years  
10 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 38).  
BLEEDING THE SOLAR COLLECTORS  
It is necessary to purge air from the  
collector circuit:  
Sꢀ When the water heater is to be turned  
on and the solar collectors and solar  
hot and cold pipes have been drained.  
Sꢀ After  
maintenance  
has  
been  
conducted on the pipe work and air  
has entered the system.  
Sꢀ If the circulator appears not to be  
circulating water around the system.  
To purge air from the collector circuit:  
Sꢀ Ensure the solar storage tank is full of  
water and all of the hot taps are  
turned off.  
Sꢀ Using a flat blade screwdriver, open  
the bleed valve (if it is not already  
open) fitted adjacent to the 5 way tee  
at the cold water inlet of the water  
heater (see diagram).  
air bleed  
valve  
Sꢀ 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 caution, as water may be at a very high temperature.  
Sꢀ Close the bleed valve when water runs freely from the drain line.  
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ABOUT YOUR WATER HEATER  
FLUSHING THE SOLAR COLLECTORS  
It may be necessary to flush the solar collectors if there is sediment in the water  
supply. To flush the solar collectors, follow the procedure “Bleeding the Solar  
Collectors” on page 7, allowing the water to flow from the bleed valve drain line for  
five minutes before closing the bleed valve.  
It is recommended to flush the solar collectors every five years. This will assist in  
keeping the solar collectors, solar cold pipe and solar hot pipe clear of sediment.  
FREEZE PROTECTION  
The system is suitable for installation, and offers protection against freeze damage,  
in areas up to 800 metres altitude. The system is not covered for freeze damage  
above 800 metres altitude (refer to “Warranty” on page 40).  
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. 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  
when the electrical circuit to the solar control unit is turned off or interrupted.  
Notes:  
Sꢀ 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.  
Sꢀ The freeze protection system will be rendered inoperable if electrical power is  
not available at the solar control unit. Damage caused by freezing due to no  
power at the solar control unit, is not covered by warranty.  
Sꢀ Pipe work between the solar collectors and solar storage tank must be  
insulated.  
Sꢀ The system is not covered for freeze damage above 800 metres altitude.  
Sꢀ Refer to “Warranty Exclusions” on page 39.  
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REGULAR CARE  
TEMPERATURE AND 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 pipe  
during each heating period. This occurs as the water  
is heated and expands by approximately 1/50 of its  
volume. Never block the outlet of this valve or its  
Water  
Heater  
drain pipe for any reason.  
Lift until  
water flows  
from the  
drain line –  
lower gently  
Operate the easing lever on the temperature and  
pressure relief valve once every six months. It is  
very important you raise and lower the lever  
gently. If water does not flow freely from the drain  
Drain  
Line  
line when the lever is lifted, then the water heater should be checked by the Rheem  
Service Department of their Accredited Service Agent.  
The temperature and 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 38).  
EXPANSION CONTROL VALVE  
In South Australia and Western Australia an expansion control valve is fitted to the  
cold supply pipe to the water heater. Water will flow from its drain line during the  
heating period. In scaling water areas, an expansion control valve should be fitted  
to the cold water supply line to the water heater.  
SAFETY  
This water heater is supplied with a thermostat, an over-temperature cut-out, and a  
combination temperature and pressure relief valve. These devices must not be  
tampered with or removed. The water heater must not be operated unless each of  
these devices is fitted and is in working order.  
If the power supply cord or plug to the solar control unit is damaged, it must be  
replaced by an authorised person, in order to avoid a hazard. Phone your nearest  
Rheem Service Department or Accredited Service Agent 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.  
SOLAR 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. Hose or wash  
the collector glass with water and a soft brush when the solar collectors are cool.  
Trim any trees which may shade the solar collectors.  
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HOW YOUR WATER HEATER WORKS  
The Rheem solar Loline system has its vitreous enamel lined solar storage tank  
installed at ground or floor level, remotely from the solar collectors. As the sun  
heats the water in the solar collectors the increase in temperature activates the  
circulator. The circulator then moves the water from the solar collectors through an  
insulated copper pipe to the solar storage tank. The circulator switches on  
whenever the water in the solar collectors is hotter than the water in the tank.  
Cooler water from the solar storage tank is circulated to the solar collectors to be  
heated by the sun’s energy. This process continues while solar energy is available  
and until the water in the solar storage tank reaches a temperature of  
approximately 75LC.  
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 19, a pressure limiting valve must be fitted. The supply pressure  
should be greater than 350 kPa for true mains pressure operation to be achieved.  
ELECTRIC BOOSTING  
Water stored in the solar storage tank can be heated by an electric booster heating  
unit. The booster heating unit is for heating the water at times of low solar energy  
gain, such as during very cloudy or rainy weather, or during the winter months.  
The booster heating unit is controlled by an  
electric thermostat. The thermostat and its  
over temperature energy cut out are  
mounted on the solar storage tank behind  
the front cover. The water temperature is  
automatically controlled to the thermostat  
setting when the booster heating unit is  
energised.  
The Optima models feature a user  
adjustable thermostat, which allows you to  
choose  
the  
most  
suitable  
boost  
temperature for your hot water needs. It  
has a minimum temperature setting of  
60LC and a maximum temperature setting  
of 75LC. The thermostat on the Rheemglas  
models is tradesperson adjustable. It has a  
minimum temperature setting of 60LC and  
a maximum temperature setting of 70LC. It  
can only be adjusted by an authorised  
person. Automatic safety controls are fitted  
to the water heater to provide safe and  
efficient operation.  
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HOW YOUR WATER HEATER WORKS  
SINGLE ELEMENT MODELS  
Sꢀ Continuous electricity supply  
This type of connection is suited to  
where the storage capacity is less than  
the normal daily usage.  
Sꢀ Off-Peak electricity supply  
This type of connection will only allow  
boosting to occur during set hours. A  
volume of water sufficient for the day’s  
total use is heated and stored. This  
type of boosting may be more  
economical due to reduced tariffs by  
the electricity authority.  
TWIN ELEMENT MODELS  
This type of water heater has two heating  
units, each with its own thermostat. One  
heating unit is at the base of the water  
heater and the other near the top.  
Sꢀ Lower heating unit  
During normal operation this heating  
unit supplies all of the boosted hot  
water during periods of low solar  
energy gain.  
Sꢀ Top heating unit  
This heating unit only operates during  
periods of high demand to provide an  
additional supply of boosted water.  
Sꢀ Electrical connection  
The two heating units are wired for non  
simultaneous operation and only one  
heating unit can operate at a time. The  
lower heating unit is usually connected  
to the Off-Peak electricity supply and  
the top heating unit to a continuous  
supply. Some electricity suppliers allow  
both heating units to be metered at the  
Off-Peak or controlled tariff.  
NOTE: Power must be available to the top heating unit circuit at all times for  
this water heater to operate as designed.  
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HOW YOUR WATER HEATER WORKS  
MANUAL CONTROLS  
An isolating switch is installed in your electrical meter box for your solar water  
heater. Rheem recommends as an optional extra a second switch, called the  
Booster Switch, be installed in a convenient location such as the kitchen or laundry.  
This switch should be a normal on/off manually operated switch (recommended for  
Off-Peak electricity supplies to single element models and the bottom element on  
twin element models) or the Rheem “One Shot Control” switch (recommended for  
continuous electricity supplies to single element models only).  
The amount of water heated by the booster heating unit depends on the model of  
water heater installed. The boosted volumes of hot water are:  
Model  
250 L  
250 litres 315 litres 400 litres  
50 litres 50 litres 90 litres  
315 L  
400 L  
Lower Heating Unit (all models)  
Top Heating Unit (twin element models)  
MANUAL ON/OFF SWITCH  
(a) Continuous Tariff Connection  
Operate the booster switch to activate the  
auxiliary booster heating unit when the hot  
water falls below an acceptable temperature.  
It is important to ensure the booster switch is  
turned OFF after you have satisfied your hot  
water needs. Do not leave the booster switch  
ON in sunlight hours because your solar  
savings will be reduced.  
(b) Extended Off-Peak Tariff Connection  
Operation is very similar to that suggested for  
continuous tariff, but it is important to be  
aware of the hours during which electricity is  
available so boosting, if required, can be  
adapted to suit. (Check with your local  
Electricity Supply Authority for hours of  
operation). Do not leave the booster switch on  
during daylight hours unless boosting is  
required, as solar savings will be reduced.  
(c) Off-Peak (night rate) Tariff Connection  
Most systems will be connected to an Off-Peak supply of electricity. Boosting will  
only occur overnight (usually between 11:00 PM and 6:00 AM). In the winter  
months many households will find it necessary to leave the booster switch ON.  
However, in some cases it may only be necessary to switch the booster switch ON  
every second night. This can be determined over a trial period.  
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HOW YOUR WATER HEATER WORKS  
“ONE SHOT CONTROL” SWITCH  
The “One Shot Control” switch has been specially developed to help provide  
maximum savings with electrically boosted solar water heaters connected to a  
continuous electricity supply. Power must be available to the “One Shot Control”  
switch before the booster heating unit can be activated.  
The switch has a push button operation  
and incorporates a neon light indicator.  
This neon light will come on when the  
water in the boosted section of the solar  
storage tank falls more than 6°C below  
the  
thermostat  
setting,  
indicating  
boosting may be required.  
When you decide the hot water is below  
a usable temperature and additional hot  
water is required, press the control  
button. The neon light will go out and the  
booster heating unit will be turned “ON”.  
The booster heating unit is automatically  
turned  
“OFF”  
when  
the  
water  
temperature reaches the thermostat  
setting.  
It is not necessary to activate the booster heating unit every time the neon light is  
on (the neon light indicates the water is more than 6°C below the thermostat  
setting). The water may still be at a usable temperature for some purposes (e.g.  
showering) and you may not need to use hot water for some hours during which  
time the water may be heated by the sun.  
Remember, even on cloudy days your solar water heater can receive diffused  
radiation, which will heat some of your stored water. On these days you will  
need to operate the booster heating unit only as desired. For summer  
operation it is recommended trial periods be undertaken to determine if it is  
necessary to turn the booster switch or one shot control ‘on’ at all.  
GOING ON HOLIDAYS  
If you plan to be away from home for a few nights, we suggest you leave the water  
heater switched on. If you plan to be away for a longer period, conserve energy by  
switching the booster switch “OFF”. It is not necessary to switch off the electrical  
supply at the power outlet to the solar control unit. Refer to “To Turn Off The Water  
Heater” on page 5. Also if the system is not used for a period in excess of 4 weeks  
it is recommended the solar collectors be covered.  
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SAVE A SERVICE CALL  
Check the items below before making a service call. You will be charged for  
attending to any condition or fault that is not related to manufacture or failure of a  
part.  
NOT ENOUGH HOT WATER (OR NO HOT WATER)  
Sꢀ Insufficient sunlight  
Insufficient sunlight due to cloudy  
weather during summer months or low  
solar energy contribution in winter  
months may mean you will need to switch  
on the booster heating unit more often.  
Sꢀ Booster heating unit not operating  
Inspect the isolating switch marked “HOT  
WATER”  
or  
“WATER  
HEATER”  
switchboard and the booster switch (if  
one is installed) and ensure they are  
turned “ON”. Check the electrical tariff to  
which the unit is connected. If on Off-  
Peak remember heating hours are  
restricted (refer to “Off-Peak Tariff” on  
page 12). Check the fuse marked “water  
heater”.  
Check the fuse marked “HOT WATER” or “WATER HEATER” at the switchboard.  
Sꢀ Twin element models  
For twin element non simultaneous models power must be available to the top  
heating unit circuit at all times for this water heater to operate as designed.  
Sꢀ Solar Control Unit  
Check the power outlet to the solar control unit is switched on.  
Sꢀ 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. Clean the collector  
glass, trim trees or relocate the solar collectors if the obstruction is permanent.  
Sꢀ Collector area is too small  
For most installations, the number of solar collectors recommended in Rheem  
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.  
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SAVE A SERVICE CALL  
Sꢀ 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  
Sꢀ Are you using more hot water than you think?  
Is one outlet (especially the shower) using more hot water than you think?  
Carefully review the family’s hot water usage. As you have installed an energy  
saving appliance, energy saving must also be practised in the home. Adjust your  
water usage pattern to take advantage of maximum solar gains. Still have  
enjoyable showers, but restrict the amount of hot water used by simply fitting an  
inexpensive flow control valve to your shower rose.  
Sꢀ Temperature and pressure relief valve running  
Is the relief valve discharging too much water? (Refer to “Temperature and  
Pressure Relief Valve Running” on page 16).  
Sꢀ Thermostat setting  
Ensure the thermostat setting is appropriate. You may choose to adjust (Optima  
models) or have your electrician adjust (Rheemglas models) the thermostat  
upwards to gain additional hot water capacity when boosting.  
Sꢀ Water heater size  
Do you have the correct size water heater for your requirements? The sizing  
guides in the sales literature and on the Rheem website (www.rheem.com.au)  
suggest 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 booster heating unit to boost the water temperature on such  
occasions.  
A lower water temperature may also be noticed in the morning when the booster  
heating unit has not been switched on overnight. This in particular may be  
experienced during periods of low solar energy gain, or if there has been heavy hot  
water usage the previous night.  
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SAVE A SERVICE CALL  
TEMPERATURE AND PRESSURE RELIEF VALVE RUNNING  
Sꢀ 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.  
Sꢀ Continuous dribble  
Try gently raising the easing lever on  
the relief valve for a few seconds. (refer  
to “Temperature and Pressure Relief  
Valve” on page 9). This may dislodge a  
small particle of foreign matter and clear  
the fault. Release the lever gently.  
Sꢀ Steady flows for long period (often at  
night)  
This may indicate the mains water  
pressure sometimes rises above the  
designed pressure of the water heater.  
Ask your installing plumber to fit a  
pressure limiting valve.  
NEVER replace the relief valve with one  
of a higher pressure rating.  
Sꢀ 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 Rheem Service Department or Accredited Service Agent  
to arrange for an inspection.  
EXPANSION CONTROL VALVE RUNNING  
If an expansion control valve is fitted in the cold water line to the water heater (refer  
to page 21) it may discharge a small quantity of water instead of the Temperature  
and Pressure Relief valve on the water heater. The benefit is that energy is  
conserved as the discharged water is cooler.  
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SAVE A SERVICE CALL  
HIGH ELECTRICITY BILLS  
With the installation of your new solar hot water system, maximum electrical energy  
savings can be achieved with careful planning of hot water usage. Should you at  
any time, feel your electricity account is too high, we suggest you check the  
following points:  
Sꢀ Is the relief valve running excessively?  
(Refer to “Temperature and Pressure  
Relief Valve Running” on page 16).  
Sꢀ Is one outlet (especially the shower)  
using more hot water than you think?  
(Refer to “Not Enough Hot Water” on  
page 14).  
Sꢀ 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.  
Sꢀ Are you using the booster heating unit properly? (Refer to “Manual On/Off  
Switch” on page 12 and “One Shot Control Switch” on page 13)  
Sꢀ Consider recent changes to your hot water usage pattern and check if there  
has been any increase in tariffs since your previous account.  
ELECTRICITY TARIFFS  
The electricity tariff to which your solar water heater is connected will play an  
important role in the overall effectiveness of the system. It is important you are  
aware of this tariff to enable you to take full advantage of the boosting period,  
i.e. Domestic/Continuous, Off-Peak, Extended Off-Peak. For types of tariffs (refer to  
“How Your Water Heater Works” on page 12).  
COLLECTOR GLASS  
Warranty DOES NOT cover breakage of solar collector glass. Check your  
household insurance policy covers collector glass breakage. Warning: Collector  
glass should not be replaced whilst the solar collector is on the roof. The solar  
collector must be disconnected and brought to ground level before replacing the  
collector glass. Should the glass on a solar collector require replacement, contact  
your nearest Rheem Service Office or Accredited Service Agent.  
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU  
NEED ASSISTANCE, CALL YOUR NEAREST RHEEM SERVICE OFFICE OR  
ACCREDITED SERVICE AGENT.  
17  
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INSTALLATION – SOLAR STORAGE TANK  
The system is suitable for installation, and offers protection against freeze damage,  
in areas up to 800 metres altitude. The system has NO WARRANTY for freeze  
damage above 800 metres altitude (refer to “Warranty” on page 40).  
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.  
SOLAR WATER HEATER STORAGE TANK LOCATION  
The solar water heater storage tank is suitable for either outdoor or indoor  
installation. Whether located outdoor or indoor, the solar water heater storage tank  
should be installed close to the most frequently used outlet and its position chosen  
with safety and service in mind.  
Clearance must be allowed for servicing of the water heater. The solar water heater  
storage tank must be accessible without the use of a ladder or scaffold. Make sure  
the Temperature and Pressure Relief valve lever is accessible and the front cover,  
thermostat and booster heating unit can be removed for service.  
You must be able to read the information on the rating plate. If possible leave  
headroom of one water heater length so the anode can be inspected or replaced.  
Remember you may have to remove the entire water heater later for servicing.  
The installation must comply with  
the  
requirements  
of  
AS/NZS 3500.4.2, AS/NZS 3000,  
and all local codes and regulatory  
authority requirements. In New  
Zealand, the installation must  
conform with the New Zealand  
Building Code.  
It is recommended the solar  
storage tank be installed at ground  
or floor level and must stand  
vertically upright. Remember all  
local authorities have regulations  
about putting water heaters into  
roof spaces.  
18  
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INSTALLATION – SOLAR STORAGE TANK  
SAFE TRAY  
It is a requirement of the National Plumbing  
Code AS/NZS 3500.4.2 that for new  
installations all water heaters be installed in  
a safe tray where in the event of a leak,  
property may be damaged. Installation of  
such trays must comply with Clause 4.4  
and Sub-clauses 1 to 5 of the above  
mentioned code.  
MAINS WATER SUPPLY  
Where the mains water supply exceeds that shown in the table below, an approved  
pressure limiting valve is required and should be fitted as shown in the installation  
diagram (refer to diagram on page 21).  
Model  
Relief valve setting  
250, 315, 400 litre  
1000 kPa  
Expansion control valve setting *  
Max. mains supply pressure  
With expansion control valve  
Without expansion control valve  
850 kPa  
680 kPa  
800 kPa  
* Expansion control valve not supplied with the water heater.  
TANK WATER SUPPLY  
If the water heater is supplied with water from a tank supply, then the bottom of the  
supply tank must be at least 1 m above both the solar collectors and the highest hot  
water outlet. Take care to avoid air locks. The cold water supply line to the water  
heater should be adequately sized and fitted with a full flow gate valve or ball valve.  
HOT WATER DELIVERY  
This water heater can deliver water at temperatures which can cause scalding. It is  
necessary that a temperature limiting device, such as the Rheem Temp-Set, be  
fitted between the water heater and the outlets in any ablution area, such as a  
bathroom or ensuite, when this water heater is installed, to reduce the risk of  
scalding. The installing plumber may have a legal obligation to ensure the  
installation of this water heater meets the delivery water temperature requirements  
of AS/NZS 3500.4.2 so that scalding water temperatures are not delivered to a  
bathroom, ensuite or other ablution area (refer to diagram on page 21).  
19  
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INSTALLATION – SOLAR STORAGE TANK  
REDUCING HEAT LOSSES  
We recommend the first 1.5 to 2 m of the hot water line coming out of the water  
heater be insulated with weatherproof insulation. In addition, the insulation of the  
hot water line from the water heater must comply with the requirements of  
AS/NZS 3400.4.2.  
ANODE TYPES  
The correct anode type for the water supply being used must be fitted in the water  
heater (refer to “Water Supplies” on page 38). The black anode is standard.  
Total Dissolved Solids in water supply to the water heater  
Anode colour code  
0 – 40 mg/L  
40 – 600 mg/L  
600 – 2500 mg/L  
Green  
Black  
Blue  
SADDLING - PIPE WORK  
To prevent damage to the cylinder when attaching pipe clips or saddles to the water  
heater jacket, we recommend the use of self-drilling screws with a maximum length  
of 12 mm. Should pre drilling be required, extreme caution must be observed when  
penetrating the jacket of the water heater.  
Note: Damage to the cylinder as a result of saddling to the jacket will void the  
warranty.  
BOOSTER HEATING UNIT  
The booster heating unit(s) provides hot water during periods of low solar gain.  
Single element models can be connected to either an Off-Peak electricity supply or  
a continuous electricity supply. Twin element models are to be connected with the  
bottom heating unit on an Off-Peak electricity supply and the top heating unit on a  
continuous electricity supply. Boosting can be controlled via a user operated  
manual switch. Refer to “Manual Controls” on page 33.  
20  
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INSTALLATION – SOLAR STORAGE TANK  
ASSEMBLY OF COLD WATER SUPPLY AND SOLAR PIPE CONNECTIONS  
Use thread sealing tape or approved thread sealant on all fittings.  
All compression fittings must use brass or copper olives.  
Ensure the air bleed valve is open when filling collectors.  
HOT WATER OUTLET  
Provide a union for disconnection. Insulate pipe.  
COLD WATER INLET  
See cold water connection detail as applicable to your local requirements. Provide  
a union for disconnection.  
RELIEF VALVE  
A drain pipe must be fitted (refer to page 30).  
BLEED VALVE  
A drain pipe must be fitted (refer to page 30).  
COLD WATER CONNECTION DETAIL  
SCHEMATIC OF 2 TEMPERATURE ZONES  
USING A TEMPERATURE LIMITING DEVICE  
21  
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INSTALLATION – SOLAR STORAGE TANK  
Rheemglas Single Element  
111250  
162250  
411250  
462250  
111315  
162315  
411315  
462315  
111400  
162400  
411400  
462400  
Twin Element  
Optima  
Single Element  
Twin Element  
Storage  
Boost  
Litres  
Litres  
Litres  
mm  
270  
50  
340  
50  
423  
90  
Top  
Bottom  
250  
1390  
650  
695  
1117  
74  
315  
1700  
650  
695  
1417  
74  
400  
1880  
690  
735  
1559  
80  
Dimensions  
A
B
mm  
C
mm  
D
mm  
E
mm  
F
G
mm  
155  
1005  
32  
155  
1305  
32  
155  
1386  
30  
mm  
H
degrees  
degrees  
kg  
J
88  
88  
83  
Weight  
empty  
full  
72  
97  
118  
544  
kg  
342  
437  
22  
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INSTALLATION – SOLAR STORAGE TANK  
INDOOR LOCATION  
OUTDOOR LOCATION  
23  
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INSTALLATION – SOLAR CONTROL UNIT  
The solar control unit is designed to be mounted on the side of the solar storage  
tank, with its location above and offset from the cold water inlet. The solar control  
unit, supplied with a 1.8 metre power cord, requires a 220 – 240 V general power  
outlet (GPO) located within 1.2 metres of its installation. If the installation is  
outdoors, the power outlet must be weatherproof (refer to “Connections – Electrical”  
on page 32).  
Note: Care must be taken when mounting the solar control unit to the side of the  
solar storage tank. Damage to the cylinder as a result of mounting the solar control  
unit to the jacket will void the warranty (refer to “Saddling - Pipe Work” on page 20).  
SOLAR CONVERSION OF A RHEEM ELECTRIC WATER HEATER  
To connect the solar cold and hot pipes and mount the solar control unit on a  
Rheem electric water heater (without a raised solar hot inlet):  
Numbers in parentheses refer to items on diagram on page 26.  
Sꢀ Fit the 5 way tee (2) to the cold water inlet of the solar storage tank. Ensure  
the rounded tube (snorkel) is orientated upwards when inserted into the solar  
storage tank, the cold sensor housing is orientated horizontally to the front of  
the solar storage tank and the solar cold outlet is orientated vertically upwards.  
Sꢀ Connect the DN15 preformed pipe (4) to the solar cold outlet connection, using  
the compression nut (5) and olive (6) provided.  
Sꢀ Fit a BSP½” x G½” nipple (1) to the outlet of the circulator (7) in the solar  
control unit (8) (ensure the compression end of the nipple is exposed).  
Sꢀ Locate the solar control unit (8) by connecting the DN15 preformed pipe (4) to  
the nipple on the inlet of the circulator (7) using the compression nut (5) and  
olive (6) provided.  
Sꢀ Secure the solar control unit (8) to the solar storage tank using the four  
screws (9) provided.  
Sꢀ Connect the solar cold pipe (to the collector) to the nipple (1) on the outlet side  
of the circulator (7) using the compression nut (5) and olive (6) provided.  
Sꢀ Insert the cold sensor probe (10) into the cold sensor housing on the 5 way  
tee (2), ensuring the ‘O’ ring is in position on the probe. Lock it into position  
with the locking washer and clip provided.  
Sꢀ Connect the hot sensor lead (from the solar collector installation) to the hot  
sensor cable connector at the underside of the solar control unit (8).  
24  
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INSTALLATION – SOLAR CONTROL UNIT  
Sꢀ Insulate the preformed pipe (4) with the 280 mm long x 12 mm diam  
insulation (12) and secure with the cable ties (14) provided  
Sꢀ Fit the air bleed valve and non return valve assembly (11) to the solar hot  
water inlet of the 5 way tee (2). Ensure the bleed valve outlet is orientated  
downwards at a slight angle to the horizontal and to the rear of the solar  
storage tank.  
Sꢀ Connect a drain line to the bleed valve (refer to “Bleed Valve Drain” on  
page 30).  
Sꢀ Fit a BSP½” x G½” nipple (1) to the end (inlet) of the air bleed valve and non  
return valve assembly (11) (ensure the compression end of the nipple is  
exposed).  
Sꢀ Connect the solar hot pipe (from the collector) to the nipple (1) on the air bleed  
valve and non return valve assembly (11) using the compression nut (5) and  
olive (6) provided.  
Sꢀ Insulate the air bleed valve and non return valve assembly (11) and 5 way  
tee (2), from the solar hot pipe to the inlet of the solar storage tank, with the  
220 mm x 35 mm diam insulation (13) and secure with the cable ties (14)  
provided.  
Note: Use thread sealing tape or an approved thread sealant on all fittings.  
from solar  
collectors  
to solar  
collectors  
refer to the  
installation  
diagram on  
assembly details  
of solar cold and  
hot pipe  
connections  
Solar Storage Tank with Solar Control Unit  
25  
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INSTALLATION – SOLAR CONTROL UNIT  
SUPPLIED IN SOLAR LOLINE CONVERSION KIT  
1. Nipple BSP½” X G½”  
9. Screws  
2. 5 way tee  
10.Cold sensor probe  
4. Preformed pipe DN15  
5. Compression nut  
6. Olive  
11.Air bleed valve and non return valve assembly  
12.Insulation 280 mm long x 12 mm diam  
13.Insulation 220 mm long x 35 mm diam  
14.Cable tie  
7. Circulator  
8. Solar control unit  
INSTALLATION OF SOLAR COLLECTORS  
Refer to page 27 for information on solar collector location. Refer to the installation  
instructions supplied with the collector kit for details on the installation of the solar  
collectors.  
26  
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INSTALLATION – SOLAR COLLECTORS  
SOLAR COLLECTOR LOCATION  
Solar collectors must be installed in a shade free position and located as follows:  
Sꢀ The solar collectors are to installed  
facing toward the equator (i.e. north  
facing in the southern hemisphere  
and south facing in the northern  
hemisphere). Where this orientation is  
not practical, a system facing up to  
45L from the equator will have its  
efficiency reduced by approximately  
5%.  
Sꢀ Inclination of the solar collectors  
should be approximately equal to the  
local latitude angle. The latitudes of  
some Australian cities are listed  
below. Solar collectors may be  
installed at the roof angle for  
simplicity  
of  
installation  
and  
appearance, but must never be flat. If  
the roof angle varies by 15L from the  
correct angle, efficiency will be  
reduced by 5%.  
Sꢀ A flat roof stand is required for  
installations where the roof angle is  
less than 10L.  
Sꢀ The collector kit is suitable for  
installations with an inclination of up  
to 30L. Where the solar collectors are  
installed at inclinations greater than  
30L, special roof fixings may be  
necessary. Refer to your local Rheem  
Solar Distributor for details.  
Sꢀ The installation of the solar collectors must comply with the requirements of  
AS/NZS 3500.4.2 and all local codes and regulatory authority requirements.  
Sꢀ The roof must be suitable to take the mass of the solar collectors. Each solar  
collector weighs 34 kg when full of water.  
Latitude of Some Australian Cities  
Adelaide  
Cairns  
Hobart  
Port Hedland  
Rockhampton  
Sydney  
35LS  
24LS  
27LS  
31LS  
17LS  
35LS  
12LS  
28LS  
42LS  
34LS  
38LS  
32LS  
20LS  
24LS  
34LS  
19LS  
Alice Springs  
Brisbane  
Canberra  
Darwin  
Mildura  
Melbourne  
Perth  
Broken Hill  
Geraldton  
Townsville  
27  
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CONNECTIONS - PLUMBING  
CONNECTION SIZES  
Sꢀ Hot water connection: RP¾/20.  
Sꢀ Cold water connection: R¾/20.  
(cold water inlet to tank: RP¾/20).  
Sꢀ Solar hot (from collector) connection:  
DN15 compression fitting.  
Sꢀ Solar cold (to collector) connection:  
DN15 compression fitting.  
Sꢀ Relief valve connection: RP½/15.  
Sꢀ Bleed valve connection: G1.0B.  
Sꢀ Expansion control valve connection (when fitted): RP½/15.  
INLET/OUTLET CONNECTIONS  
A disconnection union must always be provided at the cold water inlet and hot  
water outlet on the water heater to allow for disconnection of the water heater.  
All water heaters have a plastic dip tube or fitting liner in the inlet and outlet fittings  
(see diagram). These must be in place for the water heater to function properly. Do  
not remove or damage them by using heat nearby. They will be pushed into the  
correct position as the fitting is screwed in.  
A non return valve must be installed on the cold water supply pipe to the solar  
storage tank. Use the arrangement shown in the installation diagram (refer to  
page 21). The plumbing arrangements for the cold water inlet and solar cold and  
hot pipes are shown on page 26. The pipe work must be cleared of foreign matter  
before connection and purged before attempting to operate the water heater.  
PIPE SIZES  
The solar cold and hot pipes between the solar storage tank and the solar  
collectors should be a minimum DN15. The cold water pipe to the water heater  
should be the same size or bigger than the hot water line from the water heater. For  
best results, choose the most suitable pipe size for each individual application.  
Refer to the relevant plumbing regulations.  
28  
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CONNECTIONS - PLUMBING  
WARNING: Plumber – Be Aware:  
Sꢀ The solar cold and hot pipes between the solar storage tank and the  
solar collectors MUST BE of copper and fully insulated with Armaflex  
insulation or similar (minimum thickness 10 mm).  
Sꢀ The insulation must be weatherproof if exposed and fitted up to the  
connections on both the solar collectors and the storage tank, as  
very high temperature water can flow from the solar collectors to the  
solar storage tank under certain conditions. The insulation will also offer  
corrosion protection to a metal roof against water runoff over the copper  
pipe.  
Sꢀ Plastic pipe MUST NOT be used, as it will not withstand the temperature  
of the water generated by the solar collectors under stagnation  
conditions. The solar collectors can generate extremely high water  
temperatures, up to 150LC, 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.  
Sꢀ There must be a continuous fall in the pipe work between the solar  
collectors and storage tank. The highest point of the solar cold pipe and  
solar hot pipe must be where they connect to the solar collectors, to  
avoid the possibility of air locks occurring in the system.  
PIPE LENGTHS  
The maximum recommended combined length of the solar cold and solar hot pipes  
with bends is:  
Maximum recommended pipe length and number of 90L bends*  
1 or 2 Collectors  
3 Collectors  
4 Collectors  
Pipe  
Size  
Pipe  
Pipe  
Pipe  
90L  
90L  
90L  
Length  
Length  
Length  
Bends  
Bends  
Bends  
DN15  
DN18  
40 metres  
60 metres  
20  
20  
30 metres  
40 metres  
20  
20  
NA  
NA  
20  
32 metres  
* For each additional 90L bend, reduce the maximum total pipe length by  
0.5 metres.  
* For each additional metre of pipe length, reduce the number of 90L bends by two.  
29  
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CONNECTIONS - PLUMBING  
RELIEF VALVE  
The Temperature and Pressure Relief valve must be fitted before the water heater  
is operated. Before fitting the relief valve, make sure the probe has not been bent.  
Seal the thread with Teflon tape - never hemp. Make sure the tape does not hang  
over the end of the thread.  
Screw the valve into the correct opening (refer to the installation diagram on  
page 23) leaving the valve outlet pointing downwards. Do not use a wrench on the  
valve body - use the spanner flats provided.  
RELIEF VALVE DRAIN  
A drain pipe must be fitted to the relief valve to carry the discharge clear of the  
water heater. Connect the drain line to the relief valve using a disconnection union.  
The pipe work from the relief valve to the drain should be as short as possible, and  
fall all the way from the water heater with no restrictions. It should have no more  
than three right angle bends in it. Use DN15 pipe. The outlet of the drain pipe must  
be in such a position that flow out of the pipe can be easily seen (refer to  
AS/NZS 3500.4.2) - but arranged so hot water discharge will not cause injury,  
damage or nuisance. The relief line must discharge at an outlet or air break not  
more than 9 metres from the relief valve.  
In locations where water pipes are prone to freezing, the drain pipe must be  
insulated and not exceed 300 mm in length. In this instance, the drain pipe is to  
discharge into a tundish through an air gap of between 75 mm and 150 mm.  
Warning: As the function of the Temperature and Pressure Relief valve on this  
water heater is to discharge high temperature water under certain conditions, it is  
strongly recommended the pipe work downstream of the relief valve be capable of  
carrying water exceeding 93LC. Failure to observe this precaution may result in  
damage to pipe work and property.  
BLEED VALVE DRAIN  
A drain pipe must be fitted to the bleed valve to carry the discharge clear of the  
water heater and solar controls. Connect the drain line to the bleed valve using a  
disconnection union. The pipe work from the bleed valve to the drain should be as  
short as possible, and fall all the way from the valve with no restrictions. It should  
have no more than three right angle bends in it. Use DN15 pipe. The outlet of the  
drain pipe must be in such a position that flow out of the pipe can be easily seen  
(refer to AS/NZS 3500.4.2) - but arranged so water discharge will not cause injury,  
damage or nuisance. The water discharged may be of a high temperature under  
certain conditions.  
30  
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CONNECTIONS - PLUMBING  
EXPANSION CONTROL VALVE  
Local regulations may make it mandatory to install an expansion control  
valve (ECV) in the cold water supply line. In other areas ECVs are not required  
unless the saturation index is greater than +0.4 (refer to “Water Supplies” on  
page 38). However, they may be needed in corrosive water where there are  
sufficient quantities of silica dissolved in the water. A drain line must be run  
separately from the drain of the relief valve.  
31  
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CONNECTIONS - ELECTRICAL  
The power supply must not be turned on until the solar storage tank is filled with  
water, and a satisfactory megger reading is obtained. The solar storage tank with  
an electric booster heating unit is designed for direct connection to a  
240 V AC 50 Hz mains power supply with an isolating switch installed at the  
switchboard.  
Flexible 20 mm conduit is required for the electrical cable to the solar storage tank.  
The conduit is to be connected to the unit with a 20 mm terminator. Connect the  
power supply wires directly to the terminal block and earth tab connection, ensuring  
there are no excess wire loops inside the front cover.  
The solar control unit, supplied with a 1.8 metre power cord, requires a 240 V  
general power outlet (GPO) to be located within 1.2 metres of the installation. The  
GPO is required to be weatherproof for outdoor installations. If the power supply  
cord is damaged, it must be replaced in order to avoid a hazard.  
ASSEMBLY OF ADJUSTER MECHANISM ON OPTIMA MODELS  
When the front cover has been removed,  
reassemble as follows:  
Sꢀ Remove the knob from the front cover  
by depressing the locking tabs on the  
inside of the front cover.  
Sꢀ Turn the thermostat to the lowest  
temperature (refer to “Temperature  
Adjustment – Optima” on page 5).  
Sꢀ Fit the front cover.  
Sꢀ Insert the connector shaft through the  
hole into the thermostat adaptor slots.  
Sꢀ Align the knob slots over the ‘T’ drive on  
the connector shaft, with the dial at the  
lowest setting – a firm push with the  
hand on the knob front face will engage  
the locking tabs.  
THERMOSTAT SETTING  
The water heater thermostat should be set at the lowest temperature that will  
provide sufficient hot water. Discuss with the user to determine the lowest  
thermostat setting to ensure sufficient quantities of hot water. Dishwasher running  
costs can be adversely affected if the thermostat is set below 65LC. The thermostat  
can be adjusted within the range shown on page 4.  
32  
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CONNECTIONS - ELECTRICAL  
MANUAL CONTROLS  
A manual switch can be installed in the power supply circuit to the solar storage  
tank. The on/off booster switch can be installed with a single element model  
connected to either a continuous or an Off-Peak electricity supply, or with a twin  
element model to control the bottom heating unit connected to an Off-Peak  
electricity supply. The “One Shot Control” switch should only be installed with a  
single element model connected to a continuous electricity supply. Discuss the  
power supply and manual switching arrangements with the householder.  
Electrical installation of a twin  
element model solar storage tank  
with a manual boosting switch  
controlling the bottom heating unit  
Electrical installation of a single  
element model solar storage tank  
with a manual boosting switch  
WIRING DIAGRAM FOR  
TWIN ELEMENT ELECTRIC  
WATER HEATERS  
NON-SIMULTANEOUS  
OPERATION  
The active from the continuous  
electricity supply must be connected  
to the top heating unit circuit and the  
active from the Off-Peak electricity  
supply must be connected to the  
bottom heating unit circuit for the  
water heater to operate.  
33  
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COMMISSIONING  
TO FILL AND TURN ON THE WATER HEATER  
The power supply to the solar storage tank and solar control unit must not be  
switched on until the water heater is filled with water and a satisfactory megger  
reading is obtained.  
Sꢀ Open all of the hot water taps in the house (don’t forget the shower). Open the  
cold water isolation valve fully to the water heater. Air will be forced out of the  
taps. As water flows freely from each tap, close it. Check the piping for leaks.  
Sꢀ Bleed the solar collectors (refer to “Bleeding the Solar Collectors” on page 34).  
Sꢀ Switch on the electrical supply at the isolating switch to the solar storage tank.  
Sꢀ Plug in the solar control unit and switch the power on.  
Explain to the householder the functions and operation of the solar water heater.  
BLEEDING THE SOLAR COLLECTORS  
Upon completion of the installation, it is necessary to purge the air from the  
collector circuit. To purge air from the collector circuit:  
Sꢀ Ensure the solar storage tank is full of  
water and all of the hot taps are turned  
off.  
Sꢀ Using a flat blade screwdriver, open  
the bleed valve fitted adjacent to the  
5 way tee at the cold water inlet of the  
water heater (see diagram).  
Sꢀ The mains pressure will force water to  
flow from the tank and through the  
pipe work, forcing air from the collector  
circuit through the bleed valve. This is  
evidenced by spurting of water from  
the drain line connected to the bleed  
air bleed valve  
valve.  
Warning: Exercise caution, as water may be at a very high temperature.  
Sꢀ Close the bleed valve when water runs freely from the drain line.  
34  
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COMMISSIONING  
TO TURN OFF THE WATER HEATER  
If it is necessary to turn off the water heater on completion of the installation, such  
as on a building site or where the premises is vacant, then:  
Sꢀ Close the cold water isolation valve at the inlet to the water heater.  
Sꢀ Switch off the electrical supply at the isolating switch to the solar storage tank  
and at the power outlet for the solar control unit.  
Note: The freeze protection system will be rendered inoperable if electrical power is  
not available. Damage caused by freezing due to the unavailability of power to the  
solar control unit is not covered by warranty (refer to “Warranty Exclusions” on  
page 39). If there is a risk of freezing, then it is necessary to drain the solar  
collectors and connecting pipe work (refer to “Draining the Solar Collectors” on  
page 36).  
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DRAINING THE SOLAR COLLECTORS  
To drain the solar collectors and the solar hot and cold pipe:  
Sꢀ Turn off the water heater (refer to “To Turn Off the Water Heater” on page 35).  
Sꢀ Using a flat bladed screw driver, open the bleed valve fitted adjacent to the  
5 way tee at the cold water inlet of the water heater (refer to diagram on  
Sꢀ Undo the compression fitting at the top of the circulator (located at the side of  
the solar control unit) and disconnect the solar cold pipe. Water will now drain  
from the solar collectors and the solar hot and cold pipes.  
Sꢀ When water stops flowing from the solar hot and cold pipes, reconnect the  
solar cold pipe to the circulator and tighten the compression fitting. Close the  
bleed valve.  
DRAINING THE WATER HEATER  
Sꢀ Switch off the electrical supply at the isolating switch to the solar storage tank  
and at the power outlet for the solar control unit.  
Sꢀ Close the cold water isolation valve at the inlet to the water heater. Close all  
hot water taps.  
Sꢀ Operate the relief valve release lever - do not let the lever snap back or you  
will damage the valve seat. Operating the lever will release the pressure in the  
water heater.  
Sꢀ Undo the union at the cold water inlet to the 5 way tee and attach a hose. Let  
the other end of the hose go to a drain.  
Sꢀ Operate the relief valve again. This will let air into the water heater, and allow  
the water to drain through the hose.  
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WATER SUPPLIES  
Your Rheem water heater is manufactured to suit the water conditions of most Australian  
metropolitan supplies. However, there are some known water supplies which can have  
detrimental effects on the water heater and its operation and/or life expectancy. If you are  
unsure of your water quality, you can obtain information from your local water supply  
authority.  
ANODE  
By using the correct colour coded anode this water heater can be used in areas where the  
total dissolved solids (TDS) content in the water is up to 2500 mg/L. In areas where the  
TDS exceeds 600 mg/L it is possible the black anode, which is the standard anode fitted to  
the water heater, may be excessively active. To alleviate this, the black anode should be  
replaced with one colour coded blue. Where the TDS of the water is less than 40 mg/L,  
such as when the water has been deionised or is from an alpine supply, a high potential  
anode, colour coded green, should be used. The changing of anodes must be carried out  
by a plumber or authorised service person.  
CAUTION  
If your water supply has a TDS greater than 600 mg/L and the anode has not been  
changed to a blue one, there is the possibility hydrogen gas could accumulate in the top of  
the water heater during long periods of no use.  
If, under these conditions, the water heater has not been used for two or more weeks the  
following procedure should be carried out before using any electrical appliances  
(automatic washing machines and dishwashers) which are connected to the hot water  
supply.  
The hydrogen, which is highly flammable, should be vented safely by opening a hot tap  
and allowing the water to flow. There should be no smoking or naked flame near the tap  
whilst it is turned on. Any hydrogen gas will be dissipated. This is indicated by an unusual  
spurting of the water from the tap. Once the water runs freely again, any hydrogen in the  
system will have been released. In areas where this is likely to occur, the householder  
should be instructed by the installer on how to dissipate the gas safely.  
SATURATION INDEX  
The saturation index is used as a measure of the water’s corrosive or scaling properties. In  
a scaling water supply calcium carbonate is deposited out of the water onto any hot  
metallic surface. When water has a saturation index greater than +0.40 an expansion  
control valve* must be fitted on the cold water supply after the non-return valve and the  
solar collectors should be covered when the water heater is not intended to be used for  
extended periods.  
Where the saturation index exceeds 0.80, a water softening device and a low watts density  
element should be fitted. Where the saturation index is less than –1.0, a corrosion  
resistant heating unit should be used (contact your nearest Rheem Service Department or  
Accredited Service Agent).  
* Refer to the cold water connection detail on page 21.  
WATER HEATERS NOT INSTALLED IN ACCORDANCE WITH THE ABOVE  
ADVICE WILL NOT BE COVERED BY THE RHEEM WARRANTY.  
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RHEEM SOLAR WATER HEATER WARRANTY  
- AUSTRALIA ONLY -  
WARRANTY CONDITIONS  
1. This warranty is applicable only to water heaters  
manufactured from 1st August 2002.  
2. The water heater must be installed in accordance with  
the Rheem water heater installation instructions,  
of transport, insurance and travelling costs between  
the nearest Rheem Accredited Service Agent’s  
premises and the installed site shall be the owner’s  
responsibility.  
supplied with the water heater, and in accordance with 5. The warranty only applies to the water heater and  
all relevant statutory and local requirements of the  
State in which the water heater is installed.  
3. Where a failed component or water heater is replaced  
under warranty, the balance of the original warranty  
period will remain effective. The replaced part or water  
heater does not carry a new warranty.  
original or genuine (company) component replacement  
parts and therefore does not cover any plumbing or  
electrical parts supplied by the installer and not an  
integral part of the water heater, e.g. pressure limiting  
valve; isolation valves; non-return valves; electrical  
switches; pumps or fuse.  
4. Where the water heater is installed outside the 6. The water heater must be sized to supply the hot water  
boundaries of a metropolitan area as defined by  
Rheem or further than 25 km from a regional Rheem  
branch office, or an Accredited Service Agent, the cost  
demand in accordance with the guidelines in the  
Rheem water heater literature.  
WARRANTY EXCLUSIONS  
1. REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE RHEEM WATER HEATER  
WARRANTY, HOWEVER THE FOLLOWING EXCLUSIONS MAY CAUSE THE WATER HEATER WARRANTY TO  
BECOME VOID AND MAY INCUR A SERVICE CHARGE AND / OR COST OF PARTS.  
(a) Accidental damage to the water heater or any  
component, including: Acts of God; failure due to  
misuse; incorrect installation; attempts to repair the  
water heater other than by a Rheem Accredited  
Service Agent or the Rheem Service Department.  
(b) Where it is found there is nothing wrong with the water  
heater; where the complaint is related to excessive  
discharge from the temperature and / or pressure relief  
valve due to high water pressure; where there is no  
formation in the water ways of a solar Loline water  
heater system installed at an altitude more than  
800 metres above sea level; ice formation in the water  
ways of a water heater system with a freeze protection  
system where the electricity supply has been switched  
off or has failed; ice formation in the water ways of a  
solar water heater system where the system has not  
been installed in accordance with the Rheem water  
heater installation instructions.  
flow of hot water due to faulty plumbing; where water (d) Where the water heater is located in a position that  
leaks are related to plumbing and not the water heater  
or water heater components; where there is a failure of  
gas, electricity or water supplies; where the supply of  
gas, electricity or water does not comply with relevant  
codes or acts.  
does not comply with the Rheem water heater  
installation instructions or relevant statutory  
requirements, causing the need for major dismantling  
or removal of cupboards, doors or walls, or use of  
special equipment to bring the water heater to floor  
level or to a serviceable position.  
(c) Where the water heater or water heater component  
has failed directly or indirectly as a result of: excessive (e) Repairs to the water heater due to scale formation in  
water pressure; excessive temperature and / or  
thermal input; corrosive atmosphere; ice formation in  
the water ways of a water heater system without a  
the waterways when the water heater has been  
connected to a harmful water supply as outlined in the  
Owner’s Guide and Installation Instructions booklet.  
freeze protection system; ice formation in the water (f) Breakage of collector glass for any reason including  
ways of a solar Hiline water heater system installed at  
an altitude more than 600 metres above sea level; ice  
hail damage. (We suggest that the collector glass be  
covered by your home insurance policy).  
2. SUBJECT TO ANY STATUTORY PROVISIONS TO THE CONTRARY, THIS WARRANTY EXCLUDES ANY AND  
ALL CLAIMS FOR DAMAGE TO FURNITURE, CARPETS, WALLS, FOUNDATIONS OR ANY OTHER  
CONSEQUENTIAL LOSS EITHER DIRECTLY OR INDIRECTLY DUE TO LEAKAGE FROM THE WATER  
HEATER, OR DUE TO LEAKAGE FROM FITTINGS AND / OR PIPE WORK OF METAL, PLASTIC OR OTHER  
MATERIALS CAUSED BY WATER TEMPERATURE, WORKMANSHIP OR OTHER MODES OF FAILURE.  
39  
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RHEEM SOLAR WATER HEATER WARRANTY  
- AUSTRALIA ONLY -  
Rheem will:  
a) Repair or, if necessary replace any Rheem water heater; or  
b) Replace any component (or, if necessary, arrange the installation of a new water heater),  
which falls within the Warranty Periods specified below, in accordance with and subject to the  
following table, conditions and exclusions.  
Installation  
Model  
Period  
Warranty  
All Components (from date of installation)  
Year New component, solar collector or water heater (at  
All installations  
Cylinder (from date of installation)  
Rheemglas  
All models  
1
Rheem’s sole discretion) free of charge, including labour**  
Years  
2 & 3  
New water heater, free of charge, including labour**  
Hiline  
Loline  
Water heater installed in a  
“single-family domestic  
dwelling with a thermostat  
setting below 76LC”  
Years New water heater free of charge, with installation and  
4 & 5 labour costs being the responsibility of the owner.  
Years  
New water heater, free of charge, including labour**  
2 to 5  
Optima  
Heavy Duty  
Years New water heater free of charge, with installation and  
6 to 10 labour costs being the responsibility of the owner.  
Water heater installed in Rheemglas  
Years New water heater free of charge, with installation and  
2 & 3 labour costs being the responsibility of the owner.  
any other than a “single-  
family domestic dwelling  
with a thermostat setting  
below 76LC”  
Hiline  
Loline  
Optima  
Years New water heater free of charge, with installation and  
Heavy Duty 2 to 5 labour costs being the responsibility of the owner.  
Solar Collector (from date of installation)  
Years New solar collector, free of charge with installation and  
2 to 5 labour costs being the responsibility of the owner.  
All installations  
SCT200  
Notes:  
** Refer to item 4 of warranty conditions.  
Rheem reserves the right to transfer fully functional components from the defective water heater to the  
replacement water heater if required. The term “water heater” used in this Warranty and the Warranty  
Conditions and Exclusions means the Rheem supplied; solar storage tank(s), solar collector(s),  
components and kit(s).  
In addition to this warranty, the Trade Practices Act 1974 and similar laws in each state and territory  
provide the owner under certain circumstances with certain minimum statutory rights in relation to your  
Rheem water heater. This warranty must be read subject to that legislation and nothing in this warranty  
has the effect of excluding, restricting or modifying those rights.  
FOR SERVICE TELEPHONE  
RHEEM AUSTRALIA PTY LTD  
A.B.N 21 098 823 511  
131 031 AUSTRALIA  
0800 657 335 NEW ZEALAND  
or refer local Yellow Pages  
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.  
129872D  
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