Rheem 511161 Owner's Manual And Installation Instructions

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Page 1

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.

Owner’s Guide

and

Installation Instructions

Solar 511161 Storage Tank

This water heater must be installed and serviced by a qualified person.

Please leave this guide with the householder.

Page 2

WARNING: Plumber – Be Aware

 The solar hot and solar cold pipes between the solar storage tank and the solar collectors MUST BE

of copper. All compression fittings must use brass or copper olives.

 The full length of the solar hot and solar cold pipes MUST BE insulated.

The insulation must:  be of a closed cell type or equivalent, suitable for a solar water heating application and capable of

withstanding the temperature of the water generated by the solar collectors under stagnation conditions

The specification of the chosen insulation material should be checked with the insulation manufacturer prior to installation as different materials may vary in temperature tolerance.

 be at least 13 mm thick, however thicker insulation may be required to comply with the

requirements of AS/NZS 3500.4

 be weatherproof and UV resistant if exposed  extend through any penetrations in the eaves, ceiling and roof  cover valves and fittings in the solar pipe work  be fitted up to and cover the connections on both the solar storage tank and the solar collectors.

Note: Failure to observe these requirements also increases the risk of freeze damage.

Uninsulated pipe work, including concealed in cavities and roof spaces or where it may be in contact with a metal roof, may lead to freeze damage. The system has NO WARRANTY for freeze damage if the solar hot and solar cold pipes are not insulated in accordance with the installation instructions.

The insulation is essential to assist in providing freeze protection, will offer protection to a metal roof against corrosion due to water running off the copper pipes, assist in avoiding accidental contact with the solar pipe work as very high temperature water can flow from the solar collectors to the solar storage tank, and also reduce pipe heat losses.

 The insulated copper pipe work:

 should be fixed at suitable locations to prevent or reduce the possibility of noise from water

hammer and vibration from occurring

 is not to be placed or installed in contact with plastic pipe work.

Likewise, plastic pipe work is not to be placed or installed in contact with the insulated copper pipe work after the collector circuit is installed.

 Plastic pipe MUST NOT be used, as it will not withstand the temperature and pressure of the water

generated by the solar collector(s) under stagnation conditions. Extremely high water temperatures of up to 150°C for non-selective surface collector(s) and greater than 200°C for selective surface collector(s) and high water pressures exceeding 1000 kPa can be generated under these conditions. 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.

Plumber: It is important to refer to and read in full the complete

“Warning: Plumber – Be Aware” statement commencing on page 41.

This water heater may be protected by one or more patents or registered designs.

Registered trademark of Rheem Australia Pty Ltd.

™ Trademark of Rheem Australia Pty Ltd.

Note: Every care has been taken to ensure accuracy in preparation of this publication.

No liability can be accepted for any consequences, which may arise as a result of its application

PATENTS

TRADE MARKS

Page 3

HOUSEHOLDER – We recommend you read pages 4 to 21.

The other pages are intended for the installer but may be of interest.

About Your Water Heater ............................................................................................................ 4

Maintenance Requirements ...................................................................................................... 12

Water Supplies ........................................................................................................................... 15

Save A Service Call ................................................................................................................... 18

Installation – System ................................................................................................................. 22

Installation – Solar Storage Tank ............................................................................................. 25

Installation – Solar Control Unit ............................................................................................... 34

Installation – Solar Collector(s) ............................................................................................... 37

Connections – Plumbing .......................................................................................................... 43

Connections – Electrical ........................................................................................................... 47

Commissioning .......................................................................................................................... 49

Draining The Water Heater ....................................................................................................... 53

Draining The Solar Collector(s) ............................................................................................... 53

Purging and Flushing The Solar Collector(s) ......................................................................... 54

Warranty ..................................................................................................................................... 58

Page 4

ABOUT YOUR WATER HEATER

WATER HEATER APPLICATION

This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable water. Its use in an application other than this may shorten its life.

MODEL TYPE

Your Rheem® solar Loline water heater is designed for the solar collector(s) to be roof mounted and the vitreous enamel lined solar storage tank to be installed at ground or floor level, remotely from the solar collector(s). The solar storage tank is suitable for installation either outdoor or indoor and with 1 x CSA2612 or 1 or 2 x LCS or 1 or 2 x NPT200 solar collector(s). If an in-series gas booster is mounted to the solar storage tank, then it is suitable for outdoor installation only.

The system is not suitable for installation above 400 metres altitude. The system has a level of freeze protection designed to guard the system against

damage from freeze conditions (refer to “Freeze Protection” on page 8). The system must be installed with the full length of the solar hot and solar cold pipes insulated and power must be available at the solar control unit to offer protection against freeze damage (refer to “Warning: Plumber – Be Aware” on page 41). Freeze conditions occur below 6°C.

Note: The Rheem warranty against freeze damage applies only to systems installed in Australia.

The system has NO WARRANTY for freeze damage when installed above 400 metres altitude or if the solar hot and solar cold pipes are not insulated in accordance with the installation instructions or if power is not available at the solar control unit (refer to “Terms

of the Rheem Warranty” on page 58).

This solar water heater is designed to be installed with a Rheem continuous flow 874 series 20 or 26 litre in-series gas booster either mounted onto the storage tank or installed remotely, or a Rheem 874 series 27 litre in-series gas booster installed remotely.

The solar water heater may be installed with another suitable type of remotely installed in-series continuous flow or storage booster. If the in-series water heater is other than a Rheem continuous flow 874 series 20 or 26 or 27 litre in-series gas booster, then the references to the in-series gas booster in this guide may not be applicable to the installation.

For information relating to the function and operation of the in-series water heater, refer to the Owner’s Guide and Installation Instructions supplied with the water heater.

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 25, 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.

SOLAR OPERATION

The operation of the circulator is controlled by the combination of:  the hot sensor located at the outlet of the solar collectors.

The hot sensor measures the water temperature at the outlet of the solar collectors.

 the cold sensor located at the solar cold outlet at the base of the solar storage tank

The cold sensor measures the water temperature at the bottom of the solar storage tank.

 the differential controller located in the solar control unit.

Page 5

ABOUT YOUR WATER HEATER

Normal operation

As the sun heats the water in the solar collectors, the increase in temperature activates the circulator. The circulator switches on whenever the water in the solar collectors is hotter than the water in the solar storage tank. The circulator moves the hotter water from the solar collectors through the solar hot pipe to the solar storage tank and the cooler water from the solar storage tank is circulated to the solar collectors via the solar cold pipe to be heated by the sun’s energy.

This process continues whilst solar energy is available and the water in the solar storage tank requires heating. The circulator will deactivate when the water temperature in the solar storage tank is around 65°C to 75°C. The water heater will then enter Over-temperature operation.

During normal operation if the amount of solar energy available reduces, such as when the sky becomes very cloudy or the sun becomes lower in the sky in the late afternoon, and the water no longer gains useable heat from the solar collectors, the circulator will deactivate. The water heater will then enter standby mode.

Over-temperature operation

The purpose of the Over-temperature operation is to reduce the amount of overheating or ‘stagnation’ of water in the solar collectors. When the water in the solar storage tank has reached 65°C to 75°C and the circulator has deactivated, the solar collectors will continue to gain heat while solar energy is still available.

If the water in the solar collectors stagnates and its temperature becomes very high, the circulator will activate for a short period to transfer this extra energy to the solar storage tank. The circulator will deactivate when the water temperature in the solar collectors decreases. This process will either repeat for a maximum of six cycles or until the water temperature in the solar storage tank reaches around 75°C to 80°C or the hot sensor does not sense another increase in water temperature to a stagnation level after a cycle is completed, i.e. the solar energy available reduces.

Night Time Cooling operation

The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over-temperature operation during that day. The desired water temperature in the solar storage tank is to be between 60°C to 70°C.

If the solar control unit has entered Over-temperature operation during the day, then after the water temperature in the solar collectors reduces later in the day or early evening, the circulator will activate. Water from the solar storage tank will circulate through the solar collectors and excess heat in the water will radiate from the solar collectors reducing the temperature of the water. The water will circulate for a period of time and until the water temperature in the solar storage tank is around 60°C to 70°C. The water heater will then enter standby mode.

Freeze Protection operation

The purpose of Freeze Protection operation is to prevent freezing of water in the solar collectors and solar pipe work in very cold conditions. The water in the solar collectors will cool during periods of no solar gain. In very cold conditions, such as overnight and very early in the morning before sunrise, the water temperature can approach freezing point.

If the hot sensor measures that the water temperature in the solar collectors is approaching freezing, the circulator will activate. Water from the solar storage tank, containing more energy than the water in the solar collectors, will circulate through the solar collectors keeping the water temperature above freezing point. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing. When both of these conditions are met, the circulator will deactivate. The water heater will then enter standby mode.

This process will repeat whenever the hot sensor measures that the water temperature in the solar collectors is approaching freezing.

The anti-freeze heating unit in a frost element model will turn on when the circulator activates and the cold sensor measures a very low water temperature at the bottom of the solar storage tank. The purpose of the anti-freeze heating unit is to provide additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collectors. The anti-freeze heating unit will turn off when either the water temperature has risen by a few degrees or the circulator deactivates. The water heater will then enter standby mode.

Refer to “Freeze Protection” on page 8 and “Warning: Plumber – Be Aware” on page 41.

Page 6

ABOUT YOUR WATER HEATER

Mode

Green LED

Red LED

power on* > 48 hours

power on* < 48 hours

Normal operation

rapid pulse

3 flashes

off **

Over-temperature operation

rapid pulse

3 flashes

off, or solid then off

Night Time Cooling operation

rapid pulse

3 flashes

off

Freeze Protection operation

rapid pulse

3 flashes

off

Standby mode

solid

slow pulse

off

Notes * Power from the GPO to the solar control unit. ** In Normal Operation the red LED may emit a rapid pulse for a short period of time under certain

circumstances (refer to “Rapid Pulsing” on page 20).

typical maximum

temperature from solar gain

maximum recommended

supply temperature to

bathrooms and ensuites

Standby mode

The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal operation, and Over-temperature operation and Night Time Cooling are not required or have been completed, and conditions are not cold enough for or in-between Freeze Protection operation.

Solar Monitor LED operation

The LEDs on the Solar Monitor, located on the side of the solar control unit, operate to show the operational mode of the water heater. Refer also to “Solar Monitor” on page 9.

HOW HOT SHOULD THE WATER BE?

The solar control unit will circulate water through the solar collector(s) until a temperature of 70°C to 80°C is reached in the solar storage tank.

During periods of low solar energy gain, the continuous flow in-series gas booster will boost the water temperature automatically to its preset outlet temperature setting, or to the temperature setting of another type of in-series booster water heater.

The factory preset outlet temperature setting of the in-series gas booster is:

 874 series 20 litre, 26 litre, 27 litre models 60°C

Note: The preset outlet temperature setting of a continuous flow inseries gas booster cannot be adjusted by the householder. The setting can only be adjusted by the installer, Rheem Service or their nearest Accredited Service Agent.

Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in potable water. If this water heater is installed with an in-series continuous flow gas booster, then this requirement of AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature setting is 70°C or higher and a remote temperature controller or an EZiSET kit is not used.

If this water heater is installed with an in-series storage booster, then this requirement of AS 3498 can be satisfied provided the storage booster is energised and its thermostat setting is 60°C or higher.

Warning: Temperature controllers or an EZiSET kit must not be fitted to the in-series water heater as part of a solar water heater system because water at a temperature much higher than the controller or EZiSET setting can be delivered.

Page 7

ABOUT YOUR WATER HEATER

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.

SAFETY

This water heater is supplied with a thermostat, an over-temperature energy cut-out, temperature sensors 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.

The operation of the over-temperature cut-out on the thermostat indicates a possibly dangerous situation. If the over-temperature cut-out operates, it must not be reset and the water heater must be serviced by a qualified person.

If the power supply cord or plug to the solar control unit or the electrical conduit to the solar storage tank is damaged, it must be replaced by a qualified person in order to avoid a hazard. The power supply cord and plug must be replaced with a genuine replacement part available from Rheem. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

The Rheem warranty may not cover faults if relief valves or other safety devices are tampered with or if the installation is not in accordance with these instructions.

WARNINGS

 This water heater is only intended to be operated by persons who have the experience or the knowledge

and the capabilities to do so.

 This water heater is not intended to be operated by persons with reduced physical, sensory or mental

capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do not interfere with the water heater.

 This water heater uses 240 V AC electrical power for operation of the control systems and the electrically

operated components. The removal of the front cover or solar control unit cover will expose 240 V AC wiring. It must only be removed by a qualified person.

 The power lead from the solar controller must be plugged into a weatherproof electrical outlet if installed

outdoors. Take care not to touch the power plug with wet hands.

 Do not touch any exposed pipe work or fittings connecting the solar storage tank and the solar collector(s),

as this may result in a burn injury. Very high temperature hot water and in some circumstances high temperature steam can be generated by the solar collector(s) under certain conditions and this flows through the pipe work from the solar collector(s) to the solar storage tank.

Note: Any exposed pipe work or fittings in the collector circuit should be attended to and covered with insulation. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

 For continued safety of this water heater it must be installed, operated and maintained in accordance with

the Owner’s Guide and Installation Instructions.

 Do not modify this water heater.

Page 8

ABOUT YOUR WATER HEATER

PRECAUTIONS

Where damage to property can occur in the event of the water heater leaking, the water heater must be installed in a safe tray. Construction, installation and draining of a safe tray must comply with AS/NZS 3500.4 and all local codes and regulatory authority requirements.

The water heater must be maintained in accordance with the Owner’s Guide and Installation Instructions. Refer to “Maintenance Requirements” on page 12 and to “Anode Inspection and Replacement” on page 16.

If this water heater is to be used where an uninterrupted hot water supply is necessary for your application or business you should ensure that you have back-up redundancy within the hot water system design. This should ensure the continuity of hot water supply in the event that this water heater were to become inoperable for any reason. We recommend you seek advice from a plumber or specifier about your needs and building back-up redundancy into your hot water supply system.

FREEZE PROTECTION

The system has a level of freeze protection designed to guard the system against damage from freeze conditions. The system must be installed with the full length of the solar hot and solar cold pipes insulated and power must be available at the solar control unit to offer protection against freeze damage (refer to “Warning:

Plumber – Be Aware” on page 41). Freeze conditions occur below 6°C.

Note: The Rheem warranty against freeze damage applies only to systems installed in Australia. The system has NO WARRANTY for freeze damage when installed above 400 metres altitude or if the solar

hot and solar cold pipes are not insulated in accordance with the installation instructions or if power is not available at the solar control unit (refer to “Terms of the Rheem Warranty” on page 58).

The anti-freeze control is designed to recirculate a small amount of water from the solar storage tank through the solar pipe work and solar collector(s) during periods of low temperatures. This is to prevent the water inside the pipe work and solar collector(s) from freezing. It is essential the electrical circuit to the solar control unit is continually turned on if there is a risk of freezing. The Rheem warranty does not cover damage caused by freeze conditions when the electrical circuit to the solar control unit is turned off or interrupted.

Additional freeze protection is provided by the anti-freeze heating unit. The anti-freeze heating unit is for heating the water at the bottom of the solar storage tank at times of low cold water temperature. The antifreeze heating unit provides additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collector(s). The anti-freeze heating unit is controlled by the solar controller and will only be energised when the water temperature is very low and the circulator activates in the Freeze Protection operation mode. The water temperature is monitored by the cold sensor.

If the water temperature at the bottom of the solar storage tank is very low when the circulator activates in the Freeze Protection operation mode, the anti-freeze heating unit will be energised and will heat the water by a few degrees. The anti-freeze heating unit will be de-energised when either the frost mode is shut down or the water temperature has risen by a few degrees.

The anti-freeze heating unit is supplied with power from the solar control unit. The power outlet to the solar control unit must be switched on for the anti-freeze heating unit to operate and offer additional freeze protection.

An over-temperature energy cut-out is incorporated in a thermostat which is mounted on the solar storage tank behind the front cover.

Notes:

 The system is not covered for freeze damage above 400 metres altitude.  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 the Rheem warranty.

 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 a plumber drain the solar collector(s) and solar hot and solar cold pipes.

 Refer to “Terms of the Rheem Warranty” on page 58.

Page 9

ABOUT YOUR WATER HEATER

Flashes

Operational Modes

Flashes

Indicator or Fault Modes

solid green

(remains on)

Standby mode

solid red

(remains on)

Hot sensor temperature greater than 130°C

green

slow pulse

Standby mode (power on for less than 48 hours)

red

rapid pulse

Temperature rise across collector greater than 45°C (circulator at full speed)

green

rapid pulse

Circulating water through collectors

3 x red

Hot sensor in collector – short circuit

3 x green

Circulating water through collectors (power on for less than 48 hours)

4 x red

Hot sensor in collector – open circuit

no green

(remains off)

Power outage or call for service

5 x red

Cold sensor –short circuit

6 x red

Cold sensor – open circuit

SOLAR MONITOR

A solar monitor is located on the side of the solar control unit and houses a green and a red LED.

The green LED, marked “Solar”, indicates the current operational mode of the solar water heater and the red

LED, marked “Attention”, may indicate a potential fault mode.

The green LED will emit either a constant glow, a constant pulsing or a series of flashes, with a two (2) second interval between each series.

The red LED will emit either a constant glow, a constant pulsing or a series of flashes with a two (2) second interval between each series. A constant glow or pulsing does not necessarily mean there is a fault with the system. A series of flashes indicates there may be a particular fault condition with the system.

The modes are:

If the power supply to the solar control unit is on and the green LED is off or the red LED is flashing, this indicates there may be a fault with the water heater. The red LED may emit from three (3) to six (6) flashes in each series of flashes. A constant glow or pulsing of the red LED does not necessarily mean there is a fault with the system.

Notes:  If the system is in standby mode with the green LED emitting either a constant glow or slow pulsing flashes

(circulator is off) and the solar storage tank is full of hot water, the red LED may simultaneously emit a constant glow if solar radiation is still being received by the solar collectors. This does not indicate a fault. The red LED will go out when the temperature in the solar collectors decreases.

 During periods of high solar radiation and the circulator activates after having been off (the green LED will

emit either a rapid pulse or a series of three flashes), it is possible the red LED may simultaneously emit a rapid pulse for a period of up to ten (10) minutes. This does not indicate a fault.

If the red LED continues to emit a rapid pulse for longer than ten (10) minutes, or emits a series of flashes, then count the number of flashes and phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

Page 10

ABOUT YOUR WATER HEATER

TO TURN OFF THE WATER HEATER

If you plan to be away from home for a few nights, we suggest you leave the water heater switched on. If it is necessary to turn off the water heater:

 Switch off the electrical supply to the solar control unit at the power outlet (refer to the notes below).  Close the cold water isolation valve at the inlet to the water heater.  Refer to the Owner’s Guide and Installation Instructions supplied with the in-series water heater for the

procedure to turn off the in-series water heater.

Notes:

 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 the Rheem warranty. Refer to “Terms of the Rheem Warranty” on page 58.

 If there is a risk of freezing, the electrical supply to the solar control unit should not be switched off unless

the solar collector(s) and solar hot and solar cold pipes are drained, otherwise damage could result (refer to “Freeze Protection” on page 8).

TO TURN ON THE WATER HEATER

 Open the cold water isolation valve fully at the inlet to the water heater.  If the solar collector(s) and solar hot and solar cold pipes have been drained, it will be necessary to have

a plumber purge the collector circuit of air. If the electrical supply to the water heater has been switched off:  Switch on the electrical supply to the solar control unit at the power outlet.

The power outlet must be switched on for the solar control unit to operate and solar gain to be achieved

and for the anti-freeze heating unit to operate and offer additional freeze protection.  Refer to the Owner’s Guide and Installation Instructions supplied with the in-series water heater for the

procedure to turn on the in-series water heater.

GOING ON HOLIDAYS

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 10. Also if the system is not used for a period in excess of four (4) weeks

it is recommended the solar collector(s) be covered.

HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?

Installation requirements are shown on pages 25 to 32. The water heater must be installed:

 by a qualified person, and  in accordance with the installation instructions, and  in compliance with Standards AS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3 (for a Class 1a or

Class 10 building) as applicable under the Plumbing Code of Australia, AS/NZS 3000, and either AS 5601

or AS/NZS 5601.1 as applicable under local regulations, and all local codes and regulatory authority

requirements.

Refer also to “Warning: Plumber – Be Aware” on page 41.

Page 11

ABOUT YOUR WATER HEATER

VICTORIAN CUSTOMERS

Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be installed by a licensed person as required by the Victorian Building Act 1993.

Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the relevant Standards. Only a licensed person will have insurance protecting their workmanship for 6 years. Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate.

DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?

The water heater is suitable for most public water supplies, however some water chemistries may have detrimental effects on the water heater, the solar collectors, components and fittings. Refer to “Water Supplies” on page 15.

If you are in a known harsh water area or you are not sure of your water chemistry, have your water checked against the conditions described on pages 15 to 17.

HOW LONG WILL THE WATER HEATER LAST?

The water heater is supported by a manufacturer’s warranty (refer to page 58). There are a number of factors

that will affect the length of service the water heater will provide. These include but are not limited to the water chemistry, the water pressure, the water temperature (inlet and outlet) and the water usage pattern. Refer to

“Precautions” on page 8.

Page 12

MAINTENANCE REQUIREMENTS

MINOR MAINTENANCE EVERY SIX MONTHS

It is recommended minor maintenance be performed every six (6) months. Minor maintenance can be performed by the dwelling occupant.

The minor maintenance includes:  Operate the easing lever on the temperature pressure relief valve. It is very important you raise and lower

the lever gently. Refer to “Temperature Pressure Relief Valve” on page 13.

Warning: Exercise care to avoid any splashing of water, as water discharged from the drain line will

be hot. Stand clear of the drain line’s point of discharge when operating the valve’s lever.

 Operate the easing lever on the expansion control valve (if fitted). It is very important you raise and lower

the lever gently. Refer to “Expansion Control Valve” on page 14.

 Check the drain line from the safe tray (if one is installed) is not blocked.  Check the status of the LEDs. The green LED should be illuminated (either solid, pulsing or flashing). The

red LED should be off. Refer to “Solar Monitor” on page 9 and “Household Maintenance Around the Solar

Storage Tank” on page 14.

It is important to ensure the solar controller and circulator are operating correctly, particularly at the onset of the colder winter season. Solar gain will not be achieved and the freeze protection system will be rendered inoperative if the solar controller or circulator are not operating.

If this solar storage tank is installed with an integrated or remotely installed Rheem in-series continuous flow gas booster, it is recommended minor maintenance be performed every six months on the gas booster by the dwelling occupant. Another type of in-series booster may have its own recommended minor maintenance schedule. Refer to the Owner’s Guide and Installation Instructions supplied with the booster water heater for information regarding its recommended maintenance.

MAJOR SERVICE EVERY FIVE YEARS

It is recommended a major service be conducted on the water heater every five (5) years. If an anode replacement is conducted sooner than a major service, then the major service should coincide with the replacement.

Warning: Servicing of a water heater must only be carried out by qualified personnel. Phone Rheem Service or their nearest Accredited Service Agent.

Note: The major service and routine replacement of any components, such as the anode and relief valve(s), are not included in the Rheem warranty. A charge will be made for this work. Only genuine replacement parts should be used on this water heater.

The major service includes the following actions:

 Replace the temperature pressure relief valve.  Inspect and flush the expansion control valve (if fitted). If required, replace the valve.  Inspect and if required, replace the anode.

If the anode is not replaced, it should be replaced within three years of this service (refer to “Anode

Inspection and Replacement” on page 16).

 Check the electric heating unit for excessive calcium build-up or corrosion and replace if necessary.  Check the solar control unit for correct operation.  Flush and bleed the solar collectors.  Clean the collector glass.

Page 13

MAINTENANCE REQUIREMENTS

water

heater

drain

line

lift until water

flows from the

drain line –

lower gently

 Check the insulation on the solar hot and solar cold pipes. If required, insulate exposed pipe work and

repair or replace degraded insulation.

 Visually check the unit for any potential problems.  Inspect all connections.  Check the drain line from the safe tray (if one is installed) is not blocked.

Note: The solar storage tank may need to be drained during this service. After the completion of the service, the solar storage tank will take some time to reheat the water by solar gain.

If this solar storage tank is installed with an integrated or remotely installed Rheem in-series continuous flow gas booster, then for the booster’s safe and efficient operation, it is recommended a major service be conducted on the gas booster every five (5) years. Another type of in-series booster may have its own recommended service schedule. Refer to the Owner’s Guide and Installation Instructions supplied with the booster water heater.

TEMPERATURE PRESSURE RELIEF VALVE

This valve is near the top of the water heater and is essential for its safe operation. It is possible for the valve to release a little water through the drain line during each heating period. This occurs as the water is heated and expands by approximately 1/50 of its volume.

Continuous leakage of water from the valve and its drain line may indicate a problem with the water heater (refer to

“Temperature Pressure Relief Valve Running” on page 19).

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 (6) months. Refer to “Minor

Maintenance Every Six Months” on page 12. It is very

important the lever is raised and lowered gently.

DANGER: Failure to do this may result in the water

heater cylinder failing, or under certain circumstances, exploding.

Warning: Exercise care to avoid any splashing of water, as water discharged from the drain line will be hot. Stand

clear of the drain line’s point of discharge when operating

the valve’s lever.

If water does not flow freely from the drain line when the lever is lifted, then the water heater must be checked. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

The temperature pressure relief valve should be replaced at intervals not exceeding five (5) years, or more frequently in areas where there is a high incidence of water deposits (refer to “Water Supplies” on page 15).

Page 14

MAINTENANCE REQUIREMENTS

EXPANSION CONTROL VALVE

In many areas, including South Australia, Western Australia and scaling water areas, it is mandatory 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 (6) months. Refer to “Minor

Maintenance Every Six Months” on page 12. It is very important the lever is raised and lowered gently. If

water does not flow freely from the drain line when the lever is lifted, then the water heater should be checked by Rheem Service or their nearest Accredited Service Agent. The expansion control valve should be checked for performance or replaced at intervals not exceeding five (5) years, or more frequently in areas where there is a high incidence of water deposits.

COLLECTOR GLASS

Ensure the glass on your solar collector(s) is free of dust, salt spray or any other matter which may reduce the effectiveness of the solar collector(s). Rainfall should keep the collector adequately clean. It is recommended the collector glass be washed clean at least every three months should adequate rain not have fallen in this period.

Collector glass can be hosed down or if the solar collector(s) is accessible such as on a trafficable roof, wash the collector glass with water and a soft brush when the solar collector(s) is cool, such as early in the morning. In extremely dusty areas extra attention may need to be given to keeping the collector glass clean.

Have any trees trimmed which may shade the solar collector(s). Rheem solar collectors have passed the AS/NZS 2712 requirements for resistance to hailstone damage, so it

is not normally necessary to fit a guard to a collector. Stone Guards are available for the LCS and NPT200 solar collectors to provide a level of protection to the collectors against vandalism or accidental damage. Contact Rheem or your local Rheem Solar Water Heater Distributor for details.

HOUSEHOLD MAINTENANCE AROUND THE SOLAR STORAGE TANK

Care should be taken when conducting general household maintenance, such as lawn mowing and grass cutting, around the solar storage tank. Careless use of devices such as a whipper snipper could damage or cut a sensor lead, or electrical cable or conduit.

If a sensor lead, or electrical cable or conduit is damaged or cut, solar contribution may not be achieved and the freeze protection system may be rendered inoperative. In addition, if the electrical cable or conduit has been damaged or cut, wiring may be exposed leading to a dangerous situation.

On a regular basis, inspect around the water heater for insect infestations, such as ants. Insects may look for a warm place to nest, particularly in wet weather. Insects encroaching into or nesting in the water heater and the solar control unit can interfere with the operation of the water heater and also damage components. Spray insecticide around the water heater if necessary to rid the area of insects.

Page 15

Total Dissolved Solids

Anode colour code

0 – 40 mg/L

Green

40 – 150 mg/L

Green or Black

150 – 400 mg/L

Black

400 – 600 mg/L

Black or Blue

600 – 2500 mg/L

Blue

2500 mg/L +

Blue (no cylinder warranty)

(3570)

Green

150

2500

600

400

TOTAL DISSOLVED SOLIDS (TDS) mg/L

(CONDUCTIVITY - μS/cm)

(215)

(570)

(860)

Black

(60)

Blue

ANODE SELECTION

above

2500 mg/L (3570 μS/cm),

no warranty applies to a

vitreous enamel lined

water heater cylinder

warranty applies to a vitreous enamel lined

water heater cylinder if the correct coloured anode

is used for the TDS / conductivity level of the water

WATER SUPPLIES

This water heater must be installed in accordance with this advice to be covered by the Rheem warranty.

This water heater is manufactured to suit the water conditions of most public reticulated water supplies. However, there are some known water chemistries which can have detrimental effects on the water heater and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to obtain information from your local water supply authority. This water heater should only be connected to a water supply which complies with these guidelines for the Rheem warranty to apply.

CHANGE OF WATER SUPPLY

The changing or alternating from one water supply to another can have a detrimental effect on the operation and / or life expectation of a water heater cylinder, a temperature pressure relief valve, a heating unit and a solar collector in an open circuit solar water heater system.

Where there is a changeover from one water supply to another, e.g. a rainwater tank supply, bore water supply, desalinated water supply, public reticulated water supply or water brought in from another supply, then water chemistry information should be sought from the supplier or it should be tested to ensure the water supply meets the requirements given in these guidelines for the Rheem warranty to apply.

ANODE

The vitreous enamel lined cylinder of the water heater is only covered by the Rheem warranty when the total dissolved solids (TDS) content in the water is less than 2500 mg/L and when the correct colour coded anode is used. If an incorrect colour coded anode is used in the water heater, any resultant faults will not be covered by the Rheem warranty. In addition, the use of an incorrect colour coded anode may shorten the life of the water heater cylinder.

The correct colour coded anode must be selected and fitted to the water heater in accordance with the following advice and the Anode Selection chart on page 15 for the Rheem warranty to apply to the water heater cylinder.

The changing of an anode must be carried out by a qualified person. Note: Some water analysis reports may state the conductivity of the water rather than the level of total

dissolved solids. Conductivity, measured in microsiemens per centimetre (µS / cm), is directly proportional to the TDS content of the water. TDS, in mg / L, is approximately 70% of the conductivity in µS / cm.

Page 16

WATER SUPPLIES

ANODE INSPECTION AND REPLACEMENT

The anode installed in this water heater will slowly dissipate whilst protecting the cylinder. The life of the cylinder may be extended by replacing the anode.

For water supplies which are either softened or desalinated, or where the water supply may alternate between a water tank and a reticulated public supply or another supply, or where there is a variable supply (e.g. from a bore or public reticulated supply from various water sources), the anode must be inspected (and replaced if there is any sign of depletion) within five (5) years of its installation.

For all water supplies, if the anode is not replaced during a major service (refer to “Major Service Every Five

Years” on page 12) then the maximum time after installation when the anode should be replaced for this water

heater is eight (8) years.

CAUTION

If, under these conditions, the water heater has not been used for two or more weeks the following procedure should be carried out before using any electrical appliances (automatic washing machines and dishwashers) which are connected to the hot water supply.

The hydrogen, which is highly flammable, should be vented safely by opening a hot tap and allowing the water to flow. There should be no smoking or naked flame near the tap whilst it is turned on. Any hydrogen gas will be dissipated. This is indicated by an unusual spurting of the water from the tap. Once the water runs freely, any hydrogen in the system will have been released.

SATURATION INDEX

The saturation index is used as a measure of the water’s corrosive or scaling properties. The saturation index figures stated are calculated using a water temperature of 80°C.

In a corrosive water supply, the water can attack copper parts and cause them to fail. Where the saturation index is less than –1.0, the water is very corrosive and the Rheem warranty does not

apply to a copper sheathed heating unit or to a solar collector in an open circuit solar water heater system. A corrosion resistant heating unit must be used for the Rheem warranty to apply to the heating unit.

In a scaling water supply calcium carbonate is deposited out of the water onto any hot metallic surface. Where the saturation index exceeds +0.40, the water is very scaling. An expansion control valve must be fitted

on the cold water line after the non-return valve to protect and for the Rheem warranty to apply to the temperature pressure relief valve and water heater cylinder. Solar collectors in an open circuit solar water heater system should be covered when the water heater is not intended to be used for more than four (4) weeks.

Where the saturation index exceeds +0.80, the Rheem warranty does not apply to a standard watts density heating unit or to a solar collector in an open circuit solar water heater system. A low watts density heating unit must be used for the Rheem warranty to apply to the heating unit.

Water which is scaling may be treated with a water softening device to reduce the saturation index of the water. Refer to the Saturation Index chart on page 17. Contact Rheem Service or their nearest Accredited Service Agent if a replacement heating unit is required. Refer to the cold water connection detail on page 43 for the position of the expansion control valve.

Page 17

WATER SUPPLIES

Water Chemistry

Component

Total Dissolved Solids (TDS) > 2500 mg/L

water heater cylinder

Total Dissolved Solids (TDS) not suitable for anode type

water heater cylinder

Saturation Index (SI) < -1.0

solar collector copper sheathed heating unit

Saturation Index (SI) > +0.4 (if an expansion control valve is not fitted)

water heater cylinder temperature pressure relief valve

Saturation Index (SI) > +0.8

solar collector standard watts density heating unit

very corrosive very scalingscaling

corrosive

+0.4 +0.80-1.0

no warranty applies

to a:

temperature pressure relief valve

or a water heater cylinder unless

an expansion control valve is fitted.

no warranty applies

to a:

-copper sheathed heating unit

-direct (open circuit) solar collector

SATURATION INDEX (SI)

SOLAR WATER HEATERS WITH ELECTRIC HEATING UNIT

WITHIN WARRANTY

SPECIFICATION

SATURATION INDEX

(calculated @ 80°C water temperature)

no warranty applies

to a:

-standard watts density heating unit

-direct (open circuit) solar collector

SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY

The water heater, solar collectors and their components are not suitable for certain water chemistries. Those chemistries are listed below. If the water heater is connected at any time to a water supply with the following water chemistry, the Rheem warranty will not cover any resultant faults on the components listed below:

Page 18

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)

 Insufficient sunlight

Insufficient sunlight due to cloudy weather during hotter months or low solar energy contribution in colder months may mean the in-series water heater operates more often.

 Solar Control Unit

Check the power supply cord is plugged in and the power outlet switched on. Is power available in the house? Try using another electrical appliance.

 Green LED is off or red LED is flashing on Solar Monitor

If the green LED is off or the red LED is flashing on the Solar Monitor label, there may be a problem with the solar water heater operation and solar gain is not being achieved. This will result in the in-series gas booster operating to provide all of the hot water required.

Switch off the electrical supply at the power outlet to the solar control unit for a few seconds, then switch on again.

If the green LED remains off or the red LED recommences to flash, then count the number of flashes and phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

 Collector(s) shaded

If trees or other objects shade the solar collector(s) or if the glass is dirty, the effectiveness of the solar collector(s) will be greatly reduced.

Have the trees trimmed or the solar collector(s) relocated if the obstruction is permanent or clean the collector glass.

Refer to “Collector Glass” on page 14.

 Collector area is too small

For most installations, the number of solar collector(s) 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 possible to install a second LCS or NPT200 solar collector.

 Air in collector(s) (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 collector(s). This will prevent the circulator from moving water around the collector circuit. Have a plumber purge the collector circuit of air.

 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 a plumber install a flow control valve to each shower outlet to reduce water usage.

 Temperature pressure relief valve running

Is the relief valve discharging too much water? Refer to “Temperature Pressure Relief Valve Running” on page 19.

Page 19

SAVE A SERVICE CALL

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 13). This may dislodge a small

particle of foreign matter and clear the fault. Release the lever gently.

 Steady flows for long period (often at night)

This may indicate the mains water pressure sometimes rises above the designed pressure of the water heater. Ask your installing plumber to fit a pressure limiting valve.

Warning: Never replace the relief valve with one of a higher pressure rating.

 Heavy flows of hot water until the water heater is cold - then stops until

water reheats

The water heater must be switched off at the isolating switch or switchboard. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

EXPANSION CONTROL VALVE RUNNING

If an expansion control valve is fitted in the cold water line to the water heater (refer to the cold water connection diagram on page 43) 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.

IN-SERIES WATER HEATER OPERATING TOO FREQUENTLY

You may find that the in-series water heater operates more frequently than expected. This will occur when the solar heated water temperature is lower than the temperature setting of the in-series water heater. This may be experienced during periods of low solar energy gain or if there has been heavy hot water usage. A Rheem continuous flow solar gas booster will operate if the solar heated water temperature is lower than 58°C.

Fan Continues To Run After Water Heater Operation Stops

It is the normal operation of the Rheem solar gas booster for the fan to continue running after heating of the water is finished. The fan may run for up to two minutes after the burners extinguish, to prepare for the next ignition.

COLLECTOR GLASS

The Rheem warranty DOES NOT cover breakage of solar collector glass. Check your household insurance policy covers collector glass breakage.

Warning: No attempt should be made to remove or replace broken collector glass.

The collector glass is not offered as a replacement part. Should the solar collector require replacement, contact Rheem Service or their nearest Accredited Service Agent.

NOISE FROM THE SOLAR COLLECTORS

This water heater is installed with higher performing selective surface solar collector(s). During periods of higher solar radiation or lower hot water usage and the solar storage tank is full of hot water, the water heater may undergo Over-temperature operation (refer to “Over-temperature operation” on page 5). If this mode of operation has occurred and the circulator has deactivated, the water in the solar collector(s) will continue to gain heat and increase in pressure when solar radiation is still available. This increase in heat and pressure is greater when higher performing selective surface solar collector(s) are installed compared to non-selective surface collector(s).

When a hot tap is opened, this pressure is released and the high temperature water may turn to steam creating a sudden and loud rumbling noise and even a rattling or banging noise of the solar collector(s) against the roof cladding material. This results from the higher level of solar radiation and the water in the solar storage tank being at its maximum temperature and is not caused by a fault with the solar water heater.

Page 20

SAVE A SERVICE CALL

GREEN LED IS NOT ILLUMINATED ON SOLAR MONITOR

Check the power outlet for the solar control unit is switched on. If the power outlet for the solar control unit is switched on, switch off for a few seconds and then switch on

again. If the green LED remains off there may be a fault with the water heater. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

RED LED ILLUMINATED ON SOLAR MONITOR

The illumination of the red LED does not necessarily mean there is a fault with the system. A constant glow or rapid pulsing of the red LED indicates an operational mode of the water heater.

Constant Glow

When the water heater has entered Over-temperature operation, the water in the solar collector(s) will continue to gain heat whilst solar energy is still available. The red LED will commence to emit a constant glow when sufficient solar energy has been received to activate the circulator. This indicates a build-up in temperature of the water in the solar collector(s) and does not represent a fault. The red LED will stop glowing when the circulator has moved the excess energy from the solar collector(s) to the solar storage tank.

When six Over-temperature cycles have been completed and if solar energy is still available, the red LED will emit a constant glow until either a reasonable quantity of hot water is drawn from a tap or the water in the solar collector(s) looses energy and cools as the available solar energy is reduced, such as when the sun becomes lower in the sky in the late afternoon / early evening or the sky becomes very cloudy.

Refer to “Over-temperature operation” on page 5.

Rapid Pulsing

During Normal operation the red LED will rapid pulse if the temperature difference between the hot sensor and cold sensor is high due to excess heat in the solar collector(s). This may not represent a fault. The rapid pulsing of the red LED will cease as the water circulates transferring the excess heat from the solar collector(s) to the solar storage tank and the temperature difference between the hot sensor and cold sensor reduces. This should be within four (4) to five (5) minutes, but may take up to ten (10) minutes.

If the red LED continues to emit a rapid pulse for longer than ten (10) minutes, switch off the electrical supply at the power outlet to the solar control unit for a few seconds, then switch on again. If the red LED continues to emit a rapid pulse for longer than ten (10) minutes, phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

Series of Flashes

If the red LED is flashing this indicates there may be a fault with the water heater. The red LED may emit from three to six flashes in each series of flashes with a 2 second interval between each series.

If the red LED emits a series of flashes, switch off the electrical supply at the power outlet to the solar control unit for a few seconds, then switch on again. If the red LED illuminates again, then count the number of flashes and phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.

CIRCULATOR OPERATES AT NIGHT

The circulator can operate during periods of no solar energy, usually at night, under two operational modes of the water heater. This is by design and does not indicate a fault.

Freeze Protection operation: The circulator will activate (green LED rapid pulse or 3 flashes) if the water temperature in the solar collector(s) approaches freezing point. This occurs in very cold conditions, such as overnight and very early in the morning before sunrise. The purpose of the Freeze Protection operation is to prevent freezing of water in the solar collector(s) and solar pipe work. The circulator will remain on for some minutes and until the hot sensor measures a water temperature at a safe level above freezing from the storage tank. This process will repeat whenever the water temperature in the solar collector(s) approaches freezing point. Refer to “Freeze Protection operation” on page 5.

Night Time Cooling operation: The circulator will activate (green LED rapid pulse or 3 flashes) if the water heater has entered Over-temperature operation during that day. This can occur during periods of higher solar energy or lower hot water usage. Excess solar energy gained will be dissipated through the solar collector(s) until the water temperature in the solar storage tank decreases to a desired 60°C to 70°C. The circulator may remain on for some time. Refer to “Night Time Cooling operation” on page 5.

Page 21

SAVE A SERVICE CALL

HIGHER THAN EXPECTED GAS BILLS

With the installation of your new solar hot water system, maximum energy savings can be achieved with careful planning of hot water usage. Should you at any time feel your energy bill is higher than expected, we suggest you check the following points:

 Is the relief valve running excessively?

Refer to “Temperature Pressure Relief Valve Running” on page 19).

 Is one outlet (especially the shower) using more hot water than you

think? Refer to “Not Enough Hot Water” on page 18.

 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 a plumber rectify any leaking pipe work.

 Is the in-series water heater operating too frequently?

Refer to “In-Series Water Heater Operating Too Frequently” on page 19.

 Has there been an increase in hot water usage?

An increase in hot water usage may result in an increase in booster operation.

 Has your water heating tariff rate been increased by your energy retailer since your previous bill?

IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, PHONE RHEEM SERVICE OR THEIR NEAREST ACCREDITED SERVICE AGENT.

Page 22

INSTALLATION – SYSTEM

THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY, IF AN IN-SERIES GAS BOOSTER IS MOUNTED ON THE STORAGE TANK. THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.

The system is suitable for installation with 1 x CSA2612 or 1 or 2 x LCS or 1 or 2 x NPT200 solar collector(s). The system is not suitable for installation above 400 metres altitude.

A CSA2612 or LCS or NPT200 solar collector(s) may be installed up to 90° from the optimum orientation when installed as part of this system.

In Victoria, an approved 161 tank system with 1 x CSA2612 solar collector installed within the Regulation Compliance Zone achieves compliance to new home legislation for water heating. Outside of the compliance zone 2 x LCS solar collectors should be used to achieve compliance.

In areas other than Victoria, 2 x LCS solar collectors should not be installed with this system.

IMPORTANT NOTES

 Working on roofs is and should always be considered a hazardous activity, particularly early in the

morning, late in the evening, when the roof is wet and during and after periods of rain.

 All work must be carried out in accordance with Local, State and Federal Occupational Safety, Health and

Welfare Regulations. In particular, the requirements for safety whilst manual lifting, working at heights and on roofs.

 Installers must be competently trained in:

 Height Hazard Assessment  Working at Height Procedures  Assessment / Use / Wearing of correct height safety equipment (harnesses etc.)  All other relevant safety factors specific to the installation and maintenance work to be compliant with

suitable Occupational, Health and Safety Regulations / Codes.

 All relevant permits shall be obtained from the regulatory authorities before commencing work to install

the solar hot water system.

 All work carried out must be performed by appropriately qualified tradespeople or be suitably supervised

for trades assistant duties.

 Every care must be taken to protect and warn occupants of the building and the public from personal injury

which may occur from falling tools, roof materials, fittings or any other hazards of a general nature.

 Advise the occupants of any inconvenience which may occur due to disconnection of existing water and

electrical supplies.

 The connection, attachment, integration or general association of other equipment or parts which either

directly or indirectly affect the operation or performance of this equipment could void the Rheem warranty.

 All packaging materials must be removed from the solar storage tank prior to its installation. This includes

the removal of the cardboard base of the carton from the underside of the solar storage tank.

Page 23

INSTALLATION – SYSTEM

FREEZE PROTECTION

Plumber Be Aware” on page 41). Freeze conditions occur below 6°C.

Note: The Rheem warranty against freeze damage applies only to systems installed in Australia. The system has NO WARRANTY for freeze damage when installed above 400 metres altitude or if the solar

INSTALLATION STANDARDS

The water heater must be installed:

 by a qualified person, and  in accordance with the installation instructions, and  in compliance with Standards AS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3 (for a Class 1a or

Class 10 building) as applicable under the Plumbing Code of Australia, AS/NZS 3000, and either AS 5601 or AS/NZS 5601.1 as applicable under local regulations, and all local codes and regulatory authority requirements.

Victorian Installers

Notice to Victorian Installers from the Victorian Plumbing Industry Commission if this solar water heater is installed in a new Class 1 dwelling in the State of Victoria. The system model number is to be recorded on the Certificate of Compliance. It is also a requirement to provide the householder with permanent documentation recording the system model number exactly as it is shown in the ‘VEET Product Register’ published by the Essential Services Commission in Victoria (see www.veet.vic.gov.au). This documentation may be in the form of an indelible label adhered to the solar storage tank, or other suitable form placed in an accessible location, such as the meter box, for later inspection.

WATER HEATER APPLICATION

This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable water. Its use in an application other than this may shorten its life.

If this water heater is to be used where an uninterrupted hot water supply is necessary for the application or business, then there should be back-up redundancy within the hot water system design. This should ensure the continuity of hot water supply in the event that this water heater was to become inoperable for any reason. We recommend you provide advice to the system owner about their needs and building back-up redundancy into the hot water supply system.

This solar water heater is designed to be installed with a Rheem continuous flow 874 series 20 or 26 litre inseries gas booster either mounted onto the storage tank or installed remotely, or a Rheem 874 series 27 litre in-series gas booster installed remotely.

Warning: A model in-series gas booster greater than 26 litre capacity cannot be mounted on the solar storage tank and may only be installed remotely. The size and weight of the gas booster may cause the solar storage tank to topple over.

For information relating to the function and operation of the in-series water heater, refer to the Owner’s Guide and Installation Instructions supplied with the water heater.

Page 24

INSTALLATION – SYSTEM

Installing the Water Heater as a Pre-Heater

This water heater can be used as a pre-heater to a new or existing in-series booster water heater provided:  The in-series booster water heater is;

 thermostatically-controlled, and  suitable to be used as an in-series booster water heater for a solar water heater.

 The operating pressures of the two water heaters are compatible or reduced to the lower rated of the two

water heaters.

 The in-series booster water heater has sufficient thermal capacity to supply the hot water requirements of

the application during periods of low or no solar gain.

 A temperature-operated bypass valve is installed prior to the in-series water heater if this water heater

has either an over temperature energy cut-out which can be permanently disabled by high temperature hot water or a maximum recommended inlet supply temperature less than the temperature of water which can be supplied by this solar water heater.

It will be necessary to check with the manufacturer of the in-series water heater as to its suitability for use as an in-series booster to this solar water heater.

Page 25

Model

161

Relief valve setting

1000 kPa

Expansion control valve setting *

850 kPa

Max. mains supply pressure

With expansion control valve

680 kPa

Without expansion control valve

800 kPa

Min. mains supply pressure

200 kPa

* Expansion control valve not supplied with the water heater.

INSTALLATION – SOLAR STORAGE TANK

SOLAR WATER HEATER STORAGE TANK LOCATION

The solar storage tank is suitable for either outdoor or indoor installation. If an in-series gas booster is mounted to the solar storage tank, then the installation must be outdoors. Whether located outdoor or indoor, the solar storage tank should be installed close to the most frequently used outlet and its position chosen with safety and service in mind.

Consideration must also be given to the position of the solar storage tank in relation to the solar collector(s). There are limitations on the maximum length of the solar hot and solar cold pipes between the solar storage tank and the solar collector(s). Refer to “Solar Collector Location” on page 37, to “Pipe Lengths” on page 39 and to “Maximum height to collectors” on page 40.

Clearance must be allowed for servicing of the solar storage tank and solar control unit. The solar storage tank must be accessible without the use of a ladder or scaffold. Make sure the temperature pressure relief valve lever is accessible and the front cover, thermostat, anti-freeze heating unit, controller cover, PCB and circulator 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 height so the anode can be inspected or replaced. Remember you may have to remove the entire solar storage tank later for servicing.

The solar storage tank is to be installed at ground or floor level and must stand vertically upright on a stable base as acceptable to local authorities. The base of the water heater is made of corrosion resistant material, and it may be placed directly in contact with the supporting surface. It is not necessary to allow for free air circulation under the base of the water heater.

Note: The water heater should not be placed in direct contact with a concrete surface that is less than two months old and not fully cured as this may attack the metal coating of the water heater base. A moisture barrier should be used between the two surfaces in this instance. The barrier should extend at least 100 mm from the water heater and may be trimmed after two months.

Remember all local authorities have regulations about putting water heaters into roof spaces.

SAFE TRAY

MAINS WATER SUPPLY

Where the mains water supply pressure exceeds that shown in the table below, an approved pressure limiting valve is required and should be fitted as shown in the installation diagram (refer to the cold water connection

diagram on page 43).

Page 26

INSTALLATION – SOLAR STORAGE TANK

TANK WATER SUPPLY

If the water heater is supplied with water from a tank supply and a minimum water supply pressure of 200 kPa at the water heater cannot be achieved, then a pressure pump system must be installed to allow the solar circuit system to operate. Care must be taken to avoid air locks. The cold water line from the supply tank should be adequately sized and fitted with a full flow gate valve or ball valve. Consideration must be given to any minimum water supply pressure requirements of an in-series water heater.

WALL BRACKET

It is a requirement to secure the solar storage tank to the wall. Fit the wall bracket and secure the solar storage tank to the wall prior to the mounting of an in-series gas booster to the solar storage tank.

The top of the unit is to be secured to the wall with the wall bracket, wall plugs and screws provided. If the wall plugs and screws provided are not suitable for the wall construction, then other suitable fasteners are to be used. Refer to the fastener

manufacturer’s information and recommendations for the type of

fastener to use for the wall type and load bearing requirements. To fit the wall bracket:

 Position the bracket against the wall, ensuring the bracket is

centred at the rear of the storage tank top, and mark the fixing points on the wall where the bracket is to be secured.

 Drill holes in the wall to receive the wall plugs supplied or other

suitable fasteners for the wall bracket.

 Fix the wall bracket to the wall using the screws provided or other suitable fasteners.  Secure the bracket to the top of the water heater using the self-tapping screws provided.

HOT WATER DELIVERY

This water heater can deliver water at temperatures which can cause scalding. It is necessary and we recommend that a temperature limiting device be fitted between the water heater and

the hot water outlets in any ablution and public areas such as a bathroom, ensuite or public amenities, to reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the installation of this water heater meets the delivery water temperature requirements of AS/NZS 3500.4 so that scalding water temperatures are not delivered to a bathroom, ensuite or other ablution or public area.

The temperature limiting device must be of a type suitable for use with a solar water heater and should have:  a specified ‘minimum temperature differential’ between the hot water inlet and the tempered water outlet

of no greater than 10°C, when used with a solar water heater and continuous flow water heater

 a specified ‘maximum permitted pressure variation’ in either supply between the hot water inlet and the

cold water inlet of no less than 15% when used with a continuous flow water heater.

Refer to the specifications of the temperature limiting device.

Where a temperature limiting device is installed adjacent to the in-series water heater, the cold water line to the temperature limiting device can be branched off the cold water line either before or after the isolation valve and pressure limiting valve to the solar storage tank, but it MUST BE before a non-return valve. If an expansion control valve is required, it must always be installed after the non-return valve and be the last valve prior to the solar storage tank.

Solar control unit, PN 052294 (introduced to 511161 solar storage tanks manufactured from August 2018), contains a non-return valve at the inlet to the circulator. For a water heater fitted with this solar control unit, a non-return valve installed on the cold water line to the tank, and after the cold water branch to a temperature limiting device, is not required to be a dual check valve type.

Page 27

INSTALLATION – SOLAR STORAGE TANK

If a combination isolation valve and non-return valve (duo or trio valve) is installed on the cold water line to the solar water heater and the cold water line to the temperature limiting device branches off after this valve, then a second non-return valve must be installed between the cold water branch and the solar storage tank.

If a pressure limiting valve is installed on the cold water line to the solar water heater and the cold water line to a temperature limiting device branches off before this valve or from another cold water line in the premises, then a pressure limiting valve of an equal pressure setting may be required prior to the temperature limiting device.

Integrated In-series Gas Booster as part of an Open Circuit Solar Loline Water Heater Installation

Two Temperature Zones Using a Temperature Limiting Device

Remote In-series Gas Booster as part of an Open Circuit Solar Loline Water Heater Installation

Two Temperature Zones Using a Temperature Limiting Device

Page 28

INSTALLATION – SOLAR STORAGE TANK

CIRCULATED HOT WATER FLOW AND RETURN SYSTEM

The solar storage tank of a solar water heater should not be installed as part of a circulated hot water flow and return system in a building. The benefits of solar gain will be significantly reduced.

If a circulated flow and return system is required, it is necessary to connect the circulation return line to the inseries booster and not to the solar storage tank.

A Rheem 874 model in-series gas booster can be installed as part of a circulated hot water flow and return system in a building. If the in-series gas booster is mounted on the solar storage tank, then a suitable Tee must be installed at the inlet to the gas booster, after the flexible hose from the solar hot outlet on the tank. The circulated return line is to be connected to the Tee.

Refer to the Circulated Hot Water Flow and Return System diagram on page 29. If the in-series booster is a continuous flow water heater, then the circulator must be:

 sized and set to provide a minimum flow rate of 3.0 L/min through the circulated hot water flow and return

system, and

 either thermostatically and / or timer controlled.

The circulator must not be set to operate continuously, i.e. 24 hours per day.

Temperature Settings

 AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in

potable water.

 If the in-series water heater is a continuous flow water heater, to meet this requirement of AS 3498, its

preset outlet temperature setting must be set to 70°C or higher.

 If the in-series water heater is a storage water heater, to meet this requirement of AS 3498, its thermostat

must always be set to at least 60°C.

 Water should not be circulated from a water heater with a temperature setting of less than 60°C.  The return water temperature to the water heater must not be less than 55°C.

If the water temperature decreases by more than 5°C due to heat loss from the ring main, the preset outlet temperature setting or thermostat setting of the in-series water heater must be set to above 60°C to ensure the return water temperature is not less than 55°C.

Temperature Limiting Device

A temperature limiting device cannot be installed in circulated hot water flow and return pipe work. The tempered water supplied from the temperature limiting device cannot be circulated.

Where a circulated hot water flow and return system is required in a building, a temperature limiting device can only be installed on a dead leg, branching off the circulated hot water flow and return pipe.

If circulated tempered water were to be returned back to the booster water heater, then when the hot taps are closed no water will be supplied to the cold water inlet of the temperature limiting device whilst hot water will continue to be supplied to the hot water inlet of the temperature limiting device.

This condition may result in either water at a temperature exceeding the requirements of AS/NZS 3500.4 being delivered to the hot water outlets in the ablution areas, or the device closing completely and not delivering water at all, or the device failing. Under this condition, the operation and performance of the device cannot be guaranteed.

Page 29

INSTALLATION – SOLAR STORAGE TANK

Total Dissolved Solids

Anode colour code

0 – 40 mg/L

Green

40 – 150 mg/L

Green or Black

150 – 400 mg/L

Black

400 – 600 mg/L

Black or Blue

600 – 2500 mg/L

Blue

2500 mg/L +

Blue (no cylinder warranty)

Remote In-series Gas Booster as part of an Open Circuit Solar Loline Water Heater Installation

Circulated Hot Water Flow and Return System

REDUCING HEAT LOSSES

The cold water line to and the hot water line from the water heater must be insulated in accordance with the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed.

The full length of the solar hot and solar cold pipes between the solar storage tank and the solar collector(s)

MUST BE insulated. Refer to “Warning: Plumber Be Aware” on page 41.

ANODE

The correct colour coded anode for the water supply being used must be selected and fitted to the water heater for the Rheem warranty to apply to the water heater cylinder (refer to “Water Supplies” on page 15 and the

Anode Selection chart on page 15). The black anode is typically fitted as standard.

If the water supply has a TDS greater than 150 mg/L and a green anode has not been changed to a black anode, or if the TDS is greater than 600 mg/L and the anode has not been changed to a blue anode, there is the possibility the anode may become overactive and hydrogen gas could accumulate in the top of the water heater during long periods of no use. In areas where this is likely to occur, the installer should instruct the householder on how to dissipate the gas safely (refer to “Caution” on page 16).

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 13 mm. Should pre drilling be required, extreme caution must be observed when penetrating the jacket of the water heater.

Note: If the cylinder is damaged as a result of attaching pipe clips or saddles to the jacket, any resultant faults will not be covered by the Rheem warranty.

Page 30

INSTALLATION – SOLAR STORAGE TANK

8748 series gas booster mounting

ANTI-FREEZE HEATING UNIT

Additional freeze protection is provided by the anti-freeze heating unit. The anti-freeze heating unit is for heating the water at the bottom of the solar storage tank at times of very low cold water temperature. The antifreeze heating unit provides additional energy to the water to assist in the prevention of freezing in the solar pipe work and solar collector(s). The anti-freeze heating unit is controlled by the solar controller and will only be energised when the water temperature is very low and the circulator activates in the frost mode. The water temperature is monitored by the cold sensor.

If the water temperature at the bottom of the solar storage tank is very low when the circulator activates in Freeze Protection operation mode, the anti-freeze heating unit will be energised and will heat the water by a few degrees. The anti-freeze heating unit will be de-energised when either the frost mode is shut down or the water temperature has risen by a few degrees.

MOUNTING THE GAS BOOSTER

Fit the wall bracket and secure the solar storage tank to the wall prior to the mounting of an in-series gas booster to the solar storage tank. Refer to “Wall Bracket” on page 26.

It is recommended to install the fittings associated with the solar control unit prior to mounting the in-series gas booster. Refer to “Installation – Solar Control Unit” on page 34. The service 3-way valve assembly must be fitted prior to mounting the in-series gas booster. Refer to step 12 on page 36.

Two brackets are supplied to mount the gas booster to the solar storage tank. The top bracket is secured to the tank, then the gas booster is hung from this bracket, prior to locating the lower bracket and securing it to the tank to hold the gas booster in position.

To fit the top bracket:

 Locate one of the mounting brackets horizontally, with the two prongs pointing upwards, and the two

holes of the bracket over the dimples marked on the side of the solar storage tank.

 Secure the mounting bracket using two of the

screws supplied, with the screws penetrating through the dimples.

To mount the 8748 series gas booster:

 Hang the solar gas booster water heater onto

the mounting bracket, by placing the two horizontal slots in the top hanging bracket over the two prongs.

To fit the bottom bracket:

 Position the second mounting bracket behind

the bottom hanging bracket of the solar gas booster water heater, ensuring:

 The two prongs on the bracket are

pointing downwards, and

 The prongs are inserted through the two

horizontal slots of the solar gas booster hanging bracket.

The bracket is to be fully engaged, seating firmly onto the bottom of the slots.

 Check the bracket is fully engaged and firmly seated onto the bottom of the slots of the gas booster

hanging bracket prior to securing the mounting. This is to ensure there is no movement of the solar gas booster after the installation is complete.

 Secure the mounting bracket using the remaining two screws supplied.

Page 31

DIMENSIONS AND TECHNICAL DATA

Model

Capacity

Tank Mass (kg)

(without booster)

Tank Mass (kg)

(with booster)

Empty

Full

Empty

Full

511 161

165 litres

227

246

INSTALLATION – SOLAR STORAGE TANK

storage tank only (remote boost) storage tank with integrated boost

Technical data is subject to change.

Page 32

INSTALLATION – SOLAR STORAGE TANK

TYPICAL INSTALLATION (INTEGRATED BOOST) – OUTDOOR LOCATION

Page 33

INSTALLATION – SOLAR STORAGE TANK

TYPICAL INSTALLATION (REMOTE BOOST) – OUTDOOR LOCATION

TYPICAL INSTALLATION (REMOTE BOOST) – INDOOR LOCATION

Page 34

Part No

Kit Components and Description – Kit 299292

Qty

SK7971

Instruction sheet ground kit loline 160

220654

Valve service 3-way solar assembly, consisting of: 1 x service valve 3-way solar

2 x nut compression ½” 2 x olive compression copper ½”

331658

Union body R 3/4 M x DN15 olive

331655

Nut compression DN15

331656

Olive compression copper DN15

070897

Pipe cold 160L loline preformed tube ½” x 350 mm long

180073

Insulation pipe 13 mm ID x 13 mm wall 280 mm long

090281

Insulation pipe 35 mm ID x 80 mm long slit

080228

Cable tie black 250 – 300 mm x 4.8 mm

088065

Fitting union male ½” C x ½” C Rye 4930, consisting of: 1 x hex nipple brass ½” x ½”

2 x nut compression ½” 2 x olive compression copper ½”

Part No

Supplied for Bracket Connection (Tank to Wall)

106117

Wall bracket – L shape

080229

Wall plug plastic red 25 mm long (6 mm drill bit required)

080117

Screw button head 8G x 15 x 25

088031

Screw phillips pan head no 8 x 13

Part No

Supplied for Mounting In-series Gas Booster

140129

Mounting bracket gas booster

080031

Screw phillips pan head no 8 x 13

Part No

Supplied for Connection to In-series Gas Booster

088172

Braided hose insulated 750 mm x 12 mm diam, consisting of, 1 x 088219 hose 750 mm x 12 mm diam, 1/2” female cone, 1 x 090280 insulation pipe 25 mm ID

088143

Fitting hex nipple brass ¾” x ½”

088150

Elbow brass ½” F x ½” M Rye 2503

088161

Adaptor reducing brass ¾” F x ½” M

Part No

Supplied for Solar Storage Tank

220641

Valve TPR ½” x 1000 kPa HTE523/507

INSTALLATION – SOLAR CONTROL UNIT

The solar control unit is supplied mounted on the side of the solar storage tank. A kit (PN 299292) containing components to enable the connection of the solar pipe work to the tank is supplied with the tank. Solar control unit, PN 052294 (introduced to 511161 solar storage tanks manufactured from August 2018), contains a nonreturn valve at the inlet to the circulator.

The solar control unit, supplied with a 1.8 metre power cord, requires a 240 V 50 Hz general purpose outlet (GPO) located within 1.2 metres of its installation. The GPO must have a continuous power supply. The GPO is required to be weatherproof if installed outdoors (refer to “Connections – Electrical” on page 47).

Note: The solar control unit automatically controls the flow rate through the collector circuit. This is achieved via the hot and cold sensors and differential controller programming providing control over the operation of the circulator. There is no provision for nor is adjustment to the solar control unit required.

Page 35

INSTALLATION – SOLAR CONTROL UNIT

Notes:

 All pipe work must be purged and cleared of foreign matter before connection and before attempting to

operate the water heater.

 It is important to connect the solar hot and solar cold pipes to the correct connections at the solar collector

and at the solar storage tank.

 Connect the solar hot and solar cold pipes to the solar storage tank using only the fittings supplied.  All olive compression fittings must use brass or copper olives.  Use an approved thread sealant such as Teflon tape on all threaded joints. Conetite or O-ring fittings do

not require a thread sealant.

SUPPLIED WITH 511161 SOLAR STORAGE TANK

1. Hex nipple ½” X ½”

2. Union R 3/4 M x DN15 olive

3. Preformed pipe DN15

4. Compression nut

5. Olive

6. Solar control unit

7. Screws

8. Cold sensor and clip

9. Service 3-way valve assembly

10. Insulation 280 mm long x 13 mm ID

11. Insulation 80 mm long x 35 mm ID

12. Cable tie

Page 36

INSTALLATION – SOLAR CONTROL UNIT

SOLAR STORAGE TANK WITH RAISED SOLAR HOT INLET

Numbers in parentheses refer to items on diagram on page 35. To connect the solar cold pipe to the solar control unit on a solar Loline storage tank:

1. Fit the union R 3/4 M x DN15 (2) to the solar cold water outlet of the solar storage tank.

2. Undo the compression nut and olive from the underside of the solar control unit (6) and put aside.

3. Loosen, but do not remove, the four screws (7) which attach the solar control unit (6) to the solar storage

tank and slide the control unit upwards to the stops in the bracket slots.

4. Place a compression nut (4) and olive (5) over each end of the DN15 preformed pipe (3), pre-insulated

with the 280 mm long x 13 mm ID insulation (10), and locate the pipe in the union (2) at the solar cold outlet and in the union at the inlet of the circulator on the underside of the solar control unit (6), ensuring the straight end is orientated upwards.

5. Return the solar control unit (6) to its original position, ensuring the DN15 preformed pipe (3) is well seated

in the union (2) and in the inlet of the circulator. Connect the preformed pipe using the compression nuts (5) and olives (6) provided.

6. Tighten the four screws (7) attaching the solar control unit (6) to the solar storage tank.

7. Disassemble the fitting union, and place a compression nut (4) and olive (5) over the end of the copper

pipe protruding from the side of the solar control unit (6), and over the end of the solar cold pipe (to the collector).

8. Connect the solar cold pipe (to the collector) to the pipe from the solar control unit (6) using the nipple (1)

from the fitting union and the compression nuts (4) and olives (5).

9. Clip the cold sensor (10) over the end of the preformed pipe adjacent to the union (2) at the solar cold

outlet connection.

10. Insulate the lower end of the preformed pipe (3), cold sensor and union (2), with an 80 mm long x 35 mm ID

piece of insulation (11) and secure with two cable ties (12).

11. Connect the hot sensor lead (from the solar collector installation) to the hot sensor cable connector at the

side of the solar control unit (6). Note: Ensure the hot sensor lead is not in direct contact with the solar pipe work at any point of the

collector circuit, otherwise damage to the sensor lead can occur due to the high temperatures which can be experienced within the pipe work. Damage to the hot sensor lead can result in solar gain not being achieved and the freeze protection system being rendered inoperative. The hot sensor lead may be cable tied to the outside of the insulation on the solar pipe work.

To connect the solar hot pipe to the solar storage tank:

12. Fit the service 3-way valve assembly (9) to the solar hot water inlet of the solar storage tank. Ensure the

service valve inlet is pointing vertically upwards.

13. Connect the solar hot pipe (from the collector) to the inlet of the service valve assembly (9) using the

compression nut (4) and olive (5) provided with the valve.

14. Connect a DN15 copper drain line to the service valve to carry the discharge clear of the water heater and

solar control unit (refer to “Service Valve Drain” on page 46), using the compression nut (4) and olive (5) provided with the valve.

15. Insulate the drain line from the service valve (9) with closed cell type insulation or similar (minimum

thickness 13 mm). The insulation must be weatherproof and UV resistant if exposed.

16. After the collector circuit has been purged of air (refer to “Bleeding The Solar Collector(s)” on page 50,

insulate the service valve assembly (9), from the solar tank to the drain line of the service valve, with an 80 mm long x 35 mm ID piece of insulation (11) and secure with two cable ties (12).

Page 37

INSTALLATION – SOLAR COLLECTOR(S)

SOLAR COLLECTOR LOCATION

Consideration must be given to the position of the solar collector(s) in relation to the solar storage tank. There are limitations on the maximum length of the solar hot and solar cold pipes between the solar storage tank and the solar collector(s). Refer to “Solar Storage Tank Location” on page 25, to “Pipe Lengths” on page 39 and to

“Maximum height to collectors” on page 40.

The solar collector(s) must be installed in a shade free position. The surrounds should be checked for higher buildings or trees which may cause shade at other times of the year and for small trees which may grow and shade the solar collector(s) in the future.

The installation must comply with the requirements of either AS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3 (for a Class 1a or Class 10 building) as applicable under the Plumbing Code of Australia, and all local codes and regulatory authority requirements. Refer to the installation instructions supplied with the collector kit for details on the installation of the solar collector(s).

ROOF STRENGTH

The installer must ensure the structural integrity of the building is not compromised by the solar water heater installation and the roof structure is suitable to carry the full weight of the solar collector(s) and frame (if one is installed). If in any doubt of the construction or the condition of the roof, the roof should be suitably strengthened. Consult a structural engineer. Each solar collector and its fittings weigh approximately 36 kg (LCS – 2.0 m2 collector) or 41 kg (NPT200 – 2.0 m2 collector) or 55 kg (CSA2612 – 2.6 m2 collector) when full of water.

ROOF AREA FOR INSTALLATION

Roof area required for 2.0m2 solar collectors: 2 solar collectors – 2.3 m wide x 2.0 m deep Weight (full) 72 to 82 kg approx. 1 solar collector – 1.2 m wide x 2.0 m deep Weight (full) 36 to 41 kg approx.

Roof area required for 2.6m2 solar collectors: 1 solar collector – 1.4 m wide x 2.3 m deep. Weight (full) 55 kg approx.

In addition to this area, a minimum one (1) metre clearance is recommended on all four sides of the solar collectors for safe service access.

Maximum Number of Collectors

The maximum number of solar collectors as part of an open circuit system is:

Selective Surface LCS 2.0m2 Collectors

161 tank – 2 x collectors (Victoria only if installed greater than 50° off solar north) – 1 x collector (other areas)

Non-Selective Surface NPT200 2.0m2 Collectors

161 tank – 2 x collectors

Selective Surface CSA2612 2.6m2 Collectors

161 tank – 1 x collector

ORIENTATION OF SOLAR COLLECTORS

The optimum orientation of solar collectors, to maximise system performance, is facing true north (in the southern hemisphere) or true south (in the northern hemisphere).

However, the optimum orientation of solar collectors is not always practical or achievable. If it is not possible to achieve the optimum orientation, then it is recommended to install the solar collectors as close to the optimum orientation as possible.

Page 38

INSTALLATION – SOLAR COLLECTOR(S)

A CSA2612 or LCS or NPT200 solar collector(s) may be installed up to 90° from the optimum orientation when installed as part of this system, however solar system performance will be reduced. The system owner needs to be made aware of, understand and accept that solar system performance will be reduced and increased boosting may be required to meet their hot water requirements.

The total solar radiation received by solar collectors will reduce by approximately 4% to 5% when facing 45° from the optimum orientation and approximately 10% to 15% when facing 90° from the optimum orientation.

Where the collectors can be installed at a similar angle either east or west of the optimal orientation, then the hot water load and usage pattern may need to be considered. If the majority of hot water usage is before 2:00 PM favour an easterly bias. If the majority of hot water usage is after 2:00 PM favour a westerly bias.

Note: Always check for true north or true south using a compass or other suitable device. In Victoria, an approved 511161 tank system with 1 x CSA2612 solar collector installed within the Regulation

Compliance Zone achieves compliance to new home legislation for water heating. Outside of the compliance zone 2 x LCS solar collectors should be used to achieve compliance.

In areas other than Victoria, 2 x LCS solar collectors should not be installed with this system.

INCLINATION OF SOLAR COLLECTOR

To help maximise system performance, the solar collector should be installed with an optimum inclination. This is equal to 90% to 100% of the local latitude angle when the collector is oriented within 60° of true north or true south, and generally between 10° and 20° when the collector is oriented between 60° and 90° from the optimum orientation.

Generally, improved summer performance is obtained from an angle of inclination less than the optimum angle and improved winter performance is obtained by an angle of inclination greater than the optimum angle. If the angle of inclination varies by 20° from the optimum angle, the solar collector will receive about 10% less total annual solar radiation. The latitude of some Australian cities are listed on page 39.

AS/NZS 3500.4 states that solar collectors shall be installed at an angle within 20° of the local latitude angle. However, the optimum inclination of the solar collector is not always practical or achievable. The solar collector

may be installed at the roof angle for simplicity of installation and appearance, but must never be flat for a pumped solar water heater installation. Although the solar collectors can be installed with an inclination of less than 10° from the horizontal, this is not advised.

The risks include:

 the collector glass not 'self-cleaning', leading to dirty collector glass reducing solar performance, and  condensation on the underside of the glass taking longer to clear, and  condensation droplets falling onto the absorber plate potentially causing discolouration.

The collector kit is suitable for installations with an inclination of up to 45°. A Variable Pitch frame can be installed to increase the angle of inclination of the collector used in a pumped

solar water heater installation. This type of frame should be used if the roof pitch either varies by more than 20° from the optimum angle or if the roof pitch is less than 10°.

The use of a Variable Pitch frame should be discussed with the system owner. If this option is neither possible nor acceptable to the system owner, it may be possible for an additional solar collector to be installed or to install selective surface collectors in lieu of non-selective surface collectors to help make up for the reduction in solar performance compared to the optimum inclination. Each option should be discussed with the system owner.

If these options are neither possible nor acceptable to the system owner, then the system owner needs to be made aware of, understand and accept that solar system performance will be reduced and increased boosting may be required to meet their hot water requirements.

Page 39

INSTALLATION – SOLAR COLLECTOR(S)

Adelaide

35°S

Cairns

17°S

Hobart

42°S

Port Hedland

20°S

Alice Springs

24°S

Canberra

35°S

Mildura

34°S

Rockhampton

24°S

Brisbane

27°S

Darwin

12°S

Melbourne

38°S

Sydney

34°S

Broken Hill

31°S

Geraldton

28°S

Perth

32°S

Townsville

19°S

Maximum recommended total combined pipe length (solar hot + solar cold)

and number of 90° bends

Pipe Size

1 or 2 Collector(s)

Pipe Length

90° Bends

DN15

40 metres

DN20

For each additional 90° bend, reduce the maximum total pipe length by 0.5 metres. For each additional metre of pipe length, reduce the number of 90° bends by two. Note: One 90° elbow is equal to two 90° bends. NR – not recommended.

CYCLONIC OR HIGH WIND AREAS

For an installation of solar collectors on a pitched roof in a cyclonic or high wind area, a suitable With Pitch frame (available for 2.0m2 collector only) is required. Contact Rheem or your local Rheem Solar Water Heater Distributor for details.

The installation of the solar collectors on a suitable frame, subject to the frame’s design criteria not being exceeded:

 may be suitable for installation in geographic locations up to and within Wind Region D (With-Pitch frame

for 2.0m2 collectors only) or up to and within Wind Region C (Variable-Pitch frame), as defined in Volume 2 of the National Construction Code, AS 4055 and AS/NZS 1170.2, or equivalent locations, and

 may provide an acceptable method of installation where it is necessary to satisfy the requirements of the

National Construction Code for high wind areas, or equivalent requirements.

LATITUDE OF SOME AUSTRALIAN CITIES

PIPE LENGTHS

The solar hot and solar cold pipes between the solar storage tank and the solar collectors shall:  be of bendable grade or hard drawn copper tube, or annealed copper tube.

Annealed copper tubing shall not be joined using olive compression fittings. Note: When annealed copper pipe is used in the collector circuit, then a suitable length of bendable grade

or hard drawn copper pipe is to be brazed to the end of the collector circuit pipe work at the connection points where a copper or brass olive and compression nut is used. This requirement is to ensure there is minimum risk of pipe movement where the copper or brass olive and compression nut seal the connection at the fitting, so leaks will not occur.

 have a continuous fall from the solar collectors to the solar storage tank. Horizontal runs of pipe work are

acceptable and may be installed as part of an open circuit system. Care must be taken to ensure the pipe work maintains a continuous fall or horizontal runs over the life of

the installation. Pipe work should be fixed at regular intervals to assist in maintaining this requirement. Particular care is to be taken when annealed copper tube is used to ensure this requirement is met.

 not exceed the maximum recommended combined lengths as specified in the table.

It is essential for these requirements to be followed for the system to operate correctly and efficiently. Solar pipe work which is oversized, or is too long, or does not have a continuous fall can result in a reduction in performance or the system not operating effectively.

Page 40

INSTALLATION – SOLAR COLLECTOR(S)

Notes:

 It is important to connect the solar hot and solar cold pipes to the correct connections at the solar collector

and at the solar storage tank.

 The solar cold pipe connects to the bottom of the solar collector array and may connect to either the left

or right hand side. The solar hot pipe must connect to the top of the solar collector array diagonally opposite to the solar cold pipe connection. The solar hot outlet and hot sensor connection is to be the highest point of the system.

 The hot sensor connection is at the solar hot outlet where the solar hot pipe connects to the solar collector

for this open circuit system.

 Refer to “Warning: Plumber – Be Aware” on page 41.

Maximum height to collector(s)

The maximum height of a solar Loline installation, from the solar controller (circulator) to the top of the solar collector(s), is determined by the maximum recommended total pipe length for the system and the water supply pressure. Refer to “Pipe Lengths” on page 39.

The maximum recommended total pipe length of the collector circuit should not be exceeded and a minimum water supply pressure of 200 kPa should be available at the inlet to the system, otherwise the system performance may be reduced or the collector circuit may not be purged of air during the commissioning of the system.

Open Circuit System – Pipe Work Installation Requirements

Page 41

INSTALLATION – SOLAR COLLECTOR(S)

WARNING: Plumber – Be Aware

 The solar hot and solar cold pipes between the solar storage tank and the solar collector(s) MUST BE

of copper. All compression fittings must use brass or copper olives.

 The full length of the solar hot and solar cold pipes MUST BE insulated.

The insulation must:  be of a closed cell type or equivalent, suitable for a solar water heating application and capable

of withstanding the temperature of the water generated by the solar collector(s) under stagnation conditions

The specification of the chosen insulation material should be checked with the insulation manufacturer prior to installation as different materials may vary in temperature tolerance.

 be at least 13 mm thick, however thicker insulation may be required to comply with the

requirements of AS/NZS 3500.4

Note: Failure to observe these requirements also increases the risk of freeze damage.

 The insulated copper pipe work:

 should be fixed at suitable locations to prevent or reduce the possibility of noise from water

hammer and vibration from occurring

 is not to be placed or installed in contact with plastic pipe work.

Likewise, plastic pipe work is not to be placed or installed in contact with the insulated copper pipe work after the collector circuit is installed.

 Plastic pipe MUST NOT be used, as it will not withstand the temperature and pressure of the water

 The solar hot outlet and hot sensor connection is to be the highest point of the system. The highest

point of the solar hot and solar cold pipes must be where they connect to the solar collector(s), to avoid the possibility of air locks occurring in the system. There MUST BE a continuous fall in the pipe work from the solar collector(s) to the solar storage tank. Horizontal runs of pipe work are acceptable and may be installed as part of an open circuit system.

 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.

 The pressure applied to the collector circuit and solar collector(s) during a pressure test of an open

circuit system MUST NOT exceed 1000 kPa, otherwise damage may result. Refer to “Pressure

Testing” on page 42.

Page 42

INSTALLATION – SOLAR COLLECTOR(S)

Pressure Testing

The solar water heater, including the collector circuit, is to be isolated during the testing and commissioning of the heated water reticulation system in a building in accordance with Clause 9.3 (a) of AS/NZS 3500.4:2015 and 2018 or Clause 3.34.2 (a) of AS/NZS 3500.5:2012 for a Class 1a or Class 10 building as applicable under the Plumbing Code of Australia. The collector circuit includes the solar hot and solar cold pipes and solar collectors.

It may be necessary to pressure test the collector circuit to comply with codes and regulatory authority requirements or on other occasions where the solar collector(s) and solar hot and solar cold pipes are installed prior to the solar storage tank, such as on a building site.

Collector Circuit

Warning: The pressure applied to the collector circuit during a pressure test of an open circuit system MUST NOT exceed 1000 kPa where a CSA2612 or LCS or NPT200 solar collector(s) is installed, otherwise

damage may result.

Open Circuit System

If the solar collector(s), solar pipe work and solar storage tank are installed and commissioned together, then the flooding of the collector circuit with water under mains pressure for an open circuit system and checking the pipe work for leaks during the commissioning procedure can be substituted for the pressure testing of the collector circuit.

Page 43









CONNECTIONS – PLUMBING

All plumbing work must be carried out by a qualified person and in accordance with the requirements of either AS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3 (for a Class 1a or Class 10 building) as applicable under the Plumbing Code of Australia, and all local codes and regulatory authority requirements.

Warning: Certain types of plastic pipe, such as polybutylene pipe, are not suitable to be used as a hot water pipe between:

 this water heater and a temperature limiting device, and  this water heater and a hot water outlet if a temperature limiting device is not installed.

This water heater can produce water at a temperature and pressure which can exceed the performance limits of these types of pipe. This may result in pipe failure leading to severe water damage to the property. If one of these types of plastic pipe is used as a hot water pipe in the property, then a temperature limiting device must be installed between the water heater and this pipe work.

Note: The solar storage tank of a solar water heater should not be installed as part of a circulated hot water flow and return system in a building. The benefits of solar gain will be significantly reduced. If a circulated flow and return system is required, refer to “Circulated Hot Water Flow and Return System” on page 28.

CONNECTION SIZES

 Hot water connection: Rp 3/4.  Cold water connection: Rp 3/4.  Solar hot (from collector) connection:

DN15 compression fitting to Service valve – (solar hot inlet to tank: Rp 3/4).

 Solar cold (to collector) connection:

DN15 compression fitting to pipe at circulator outlet – (solar cold outlet from tank: Rp 3/4).

 Relief valve connection: Rp 1/2.  Service valve drain connection: DN15 compression fitting.

WATER INLET AND OUTLET

All pipe work must be cleared of foreign matter before connection and purged before attempting to operate the water heater. All olive compression fittings must use brass or copper olives. Use an approved thread sealant such as Teflon tape on all sealing threads. Conetite or O-ring fittings do not require a thread sealant.

An isolation valve and non-return valve must be installed on the cold water line to the water heater. An acceptable arrangement is shown in the diagram on page 43. Refer also to “Hot Water Delivery” on page 26 and to “Mains Water Supply” on page 25. The plumbing arrangements for the cold water inlet and solar hot

and solar cold pipes are shown on page 35.

Page 44

CONNECTIONS – PLUMBING

INSULATED

HOSE

WALL

BRACKET

A disconnection union must always be provided at the cold water inlet, solar cold water outlet, solar hot water inlet and hot water outlet on the water heater to allow for disconnection of the water heater.

This water heater has either a plastic dip tube or fitting liner in the inlet and outlet fittings (see diagram). These must be in place for the water heater to function properly. Do not remove or damage them by using heat nearby. They will be pushed into the correct position as the fitting is screwed in.

This water heater is intended to be permanently connected to the water mains and not connected by a hoseset. A braided flexible hose or semi-flexible connector may be used for connection to the water heater, where permitted by AS/NZS 3500.4.

IN-SERIES BOOSTER – INTEGRATED

A braided hose, 750 mm long 12 mm diameter, is supplied for connecting between the solar storage tank and a Rheem 8748 series 20 litre or 26 litre model in-series gas booster mounted onto the storage tank.

Fit the wall bracket and secure the solar storage tank to the wall prior to the mounting of an in-series gas booster to the solar storage tank. Refer to “Wall Bracket” on page 26. To integrate the in-series gas booster onto the solar storage tank, refer to “Mounting the Gas Booster” on page 30.

Notes

 Numbers in parentheses refer to items on diagram on

page 44.

 The braided hose has compression fitting connections.  Use thread sealing tape or an approved thread sealant

To connect the braided hose to the solar storage tank and in-series gas booster:

 Fit the ¾” x ½” hex nipple (1) to the hot water outlet of

 Fit the ½” x ½” elbow (2) to the hex nipple (1),

 Fit the ¾” x ½” reducing adaptor (3) to the water inlet of

on all fittings.

the solar storage tank.

orientating the elbow downwards.

the in-series gas booster.

 Connect one end of the insulated braided hose (4) to

the elbow (2) at the hot water outlet of the solar storage tank and the other end to the adaptor (3) at the water inlet to the in-series gas booster.

SUPPLIED WITH 511161 SOLAR STORAGE TANK

1. Hex nipple ¾” x ½”

2. Elbow ½” x ½”

3. Adaptor – ¾” x ½”

4. Insulated braided hose

Page 45

CONNECTIONS – PLUMBING

IN-SERIES BOOSTER – REMOTE LOCATION

The in-series booster water heater may be installed remotely from the solar storage tank. If the in-series water heater is a continuous flow gas water heater, this may be located adjacent to the right

hand side of the solar storage tank and subject to the location of the flue terminal complying with the requirements of AS 5601 or AS/NZS 5601.1, connected using the fittings and braided hose supplied and following the procedure outlined under “In-Series Booster – Integrated” on page 44. A full flow isolation valve need not be installed.

Otherwise, the pipe work between the solar storage tank and an in-series water heater has a minimum recommended pipe size of DN20, MUST BE of copper and be fully insulated with a closed cell type insulation or equivalent in accordance with the requirements of AS/NZS 3500.4. In Victoria, insulation with a minimum R-value of 0.6 (usually 25 mm thick) must be used to achieve compliance to local regulatory requirements.

The insulation must be weatherproof and UV resistant if exposed. The insulation must be fitted up to the connections on both the solar storage tank and the in-series water heater. A full flow isolation valve must be installed on the water line to the in-series water heater.

PIPE SIZES

To achieve true mains pressure operation, the cold water line to the water heater should be the same size or bigger than the hot water line from the water heater.

The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing the most suitable pipe size for each individual application. Reference to the technical specifications of the water heater and local regulatory authority requirements must be made.

TEMPERATURE PRESSURE RELIEF VALVE

The temperature pressure relief valve is supplied in the plastic bag with the solar control unit ground kit components. The temperature pressure relief valve must be fitted before the water heater is operated. Before fitting the relief valve, make sure the probe has not been bent. Seal the thread with an approved thread sealant such as Teflon tape - never hemp. Make sure the tape does not hang over the end of the thread.

Screw the valve into the opening labelled “Relief Valve” (refer to the installation diagram on page 33) leaving the valve outlet pointing downwards. Do not use a wrench on the valve body - use the spanner flats provided. A copper drain line must be fitted to the temperature pressure relief valve (refer to "Relief Valve Drain" on page 46).

The valve must be insulated with closed cell polymer insulation or similar (minimum thickness 9 mm) and the insulation installed so as not to impede the operation of the valve. The insulation must be weatherproof and UV resistant if exposed.

EXPANSION CONTROL VALVE

Local regulations may make it mandatory to install an expansion control valve (ECV) in the cold water line to the water heater. In other areas, an ECV is required if the saturation index is greater than +0.4 (refer to “Water

Supplies” on page 15).

The expansion control valve must always be installed after the non-return valve and be the last valve installed prior to the water heater (refer to diagrams on page 43). A copper drain line must be fitted to the expansion control valve (refer to "Relief Valve Drain" on page 46).

The valve, if installed within 500 mm of the water heater, must be insulated with closed cell polymer insulation or similar (minimum thickness 9 mm) and the insulation installed so as not to impede the operation of the valve. The insulation must be weatherproof and UV resistant if exposed.

Page 46

CONNECTIONS – PLUMBING

RELIEF VALVE DRAIN

DN15 copper drain lines must be fitted to the temperature pressure relief valve and expansion control valve (if one is installed) to carry the discharge clear of the water heater. Connect the drain lines to the valves using disconnection unions. The drain line from the valve to the point of discharge should be as short as possible, have a continuous fall all the way from the water heater to the discharge outlet and have no tap, valves or other restrictions in the pipe work.

A drain line from a relief valve must comply with the requirements of AS/NZS 3500.4. A drain line must be no longer than nine (9) metres with no more than three bends greater than 45° before

discharging at an outlet or air break. The maximum length of nine (9) metres for a drain line is reduced by one (1) metre for each additional bend required of greater than 45°, up to a maximum of three additional bends. Where the distance to the point of final discharge exceeds this length, the drain line can discharge into a tundish.

Subject to local regulatory authority approval, the drain lines from the temperature pressure relief valve and expansion control valve from an individual water heater may be interconnected.

The outlet of a drain line must be in such a position that flow out of the pipe can be easily seen, but arranged so discharge will not cause injury, damage or nuisance. The termination point of a drain line must comply with the requirements of AS/NZS 3500.4. Drain lines must not discharge into a safe tray.

In locations where water pipes are prone to freezing, drain lines must be insulated, must not exceed 300 mm in length and are to discharge into a tundish through an air gap of between 75 mm and 150 mm.

If a drain line discharges into a tundish, the drain line from the tundish must be not less than DN20. The drain line from a tundish must meet the same requirements as for a drain line from a relief valve.

Warning: As the function of the temperature pressure relief valve on this water heater is to discharge high temperature water under certain conditions, it is strongly recommended the pipe work downstream of the relief valve be capable of carrying water exceeding 93°C. Failure to observe this precaution may result in damage to pipe work and property.

SERVICE VALVE DRAIN

A copper drain line must be fitted to the service valve to carry the discharge clear of the water heater and solar control unit. Connect the drain line to the service valve using the compression nut and olive provided. The pipe work from the service valve to the drain should be as short as possible and fall all the way from the valve with no restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.

The outlet of the drain line must be in such a position that flow out of the pipe can be easily seen (refer to AS/NZS 3500.4) - but arranged so water discharge will not cause injury, damage, nuisance or splashing. The water discharged may be of a high temperature and even very high temperature steam can be generated under certain conditions. The drain line must be fully insulated with closed cell polymer insulation or similar (minimum thickness 13 mm). The insulation must be weatherproof and UV resistant if exposed.

Warning: The solar collector(s) can generate very high temperature water and even very high temperature steam can be generated under certain conditions when the service valve is opened. It is strongly recommended pipe work downstream of the service valve be capable of carrying water exceeding 93°C. Failure to observe this precaution may result in damage to pipe work and property.

Page 47

Component

Power

consumption

Comments

Solar controls

4 Watts

Constant load - differential controller

Solar circulator

36 Watts

Maximum circulator load at solar heating cycle or anti-freeze cycle start-up

30 Watts

Average circulator load during the solar heating cycle or anti-freeze cycle

Heating unit

1200 Watts

Heating unit load when operating

Total

1240 Watts

Maximum load during anti-freeze cycle

1234 Watts

Average load during anti-freeze cycle

CONNECTIONS – ELECTRICAL

The power supply to the water heater must not be switched on until the water heater is filled with water.

All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the edition of the Wiring Rules AS/NZS 3000 in force in the state or territory at the time of installation, and all local codes and regulatory authority requirements.

The power consumption of the water heater is:

The water heater will only operate on a sine wave at 50 Hz. Devices generating a square wave cannot be used to supply power to the water heater.

SOLAR CONTROL UNIT

The solar control unit, supplied with a 1.8 metre power cord, requires a switched 240 V AC 50 Hz general purpose outlet (GPO) to be located within 1.2 metres of the installation. The GPO must have a continuous power supply. The GPO is required to be weatherproof if installed outdoors.

The anti-freeze heating unit is supplied with power from the power outlet via the solar control unit. A flexible 20 mm conduit is provided for the electrical cable from the solar control unit to the solar storage tank. The conduit is connected to the solar control unit and the solar storage tank with 20 mm terminators.

The power outlet to the solar storage tank must be switched on for the solar control unit to operate and solar gain to be achieved and for the anti-freeze heating unit to operate and offer additional freeze protection.

The anti-freeze heating unit is rated at 1200 watts.

Warning: If at any stage the heating unit requires replacement, the replacement heating unit’s rating must not exceed 1200 watts. Fitting a heating unit with a power rating greater than 1200 watts will damage the differential controller in the solar control unit.

The solar control unit automatically controls the flow rate through the collector circuit. This is achieved via the hot and cold sensors and differential controller programming providing control over the operation of the circulator. There is no provision for nor is adjustment to the solar control unit required.

THERMOSTAT SETTING

The temperature setting on the thermostat connected to the anti-freeze heating unit does not need to be adjusted as this thermostat does not provide temperature control. Its primary function is to provide an energy cut-out in the event the solar controller fails to turn off power to the anti-freeze heating unit. Temperature control for the freeze protection function is provided by the differential controller in the solar control unit.

Page 48

CONNECTIONS – ELECTRICAL

3 1

Main 240 AC

Booster Heating Unit

3 1

Hot sensor connection

Cold sensor

WIRING DIAGRAM – SOLAR STORAGE TANK

Solar Control Unit Anti-Freeze Heating Unit

Page 49

COMMISSIONING

TO FILL AND TURN ON THE WATER HEATER

The power supply to the solar control unit must not be switched on until the water heater is filled with water.

 Open all of the hot water taps in the house (don’t forget the shower).  Open the service valve fitted at the solar hot water inlet (from collector) of the solar storage tank, using a

pair of pliers or other appropriate tool. Refer to the Service 3-Way Valve diagram on page 50.

 Open the cold water isolation valve fully on the cold water line to the water heater.

Air will be forced out of the taps and the service valve drain line.

 Close each tap as water flows freely from it.  Close the service valve when water runs freely from the drain line.

The solar collectors and collector circuit should now be purged of air.

 Check the pipe work for leaks.  Plug in the solar control unit at the power outlet and switch on the electrical supply.

The power outlet must be switched on for the solar control unit to operate and solar gain to be achieved and for the anti-freeze heating unit to operate and offer additional freeze protection.

Refer to “Solar Controller Operation at Start-Up” on page 51. Note: The solar control unit automatically controls the flow rate through the collector circuit. This is

achieved via the hot and cold sensors and differential controller programming providing control over the

operation of the circulator. There is no provision for nor is adjustment to the solar control unit required.  Remove the packaging / covers from the solar collector(s). Note: If the service 3-way valve was not opened during the tank filling procedure above, then the collector

circuit will need to be purged of air. Refer to “Bleeding the Solar Collector(s)” on page 50. Explain to the householder or a responsible officer the functions and operation of the solar water heater. Upon

completion of the installation and commissioning of the water heater, leave this guide with the householder or a responsible officer.

TO TURN OFF THE WATER HEATER

If it is necessary to turn off the water heater on completion of the installation, such as on a building site or where the premises is vacant, then:

 Switch off the electrical supply to the solar control unit at the power outlet (refer to note below).  Close the cold water isolation valve at the inlet to the water heater.  Refer to the Owner’s Guide and Installation Instructions supplied with the in-series water heater for the

procedure to turn off the in-series water heater.

Notes:

 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 the

Rheem warranty.  If there is a risk of freezing, then it is necessary to drain the solar collector(s) and solar hot and solar cold

pipes (refer to “Draining the Solar Collector(s)” on page 53).  Refer to “Terms of the Rheem Warranty” on page 58.

Page 50

COMMISSIONING

Service 3-Way Valve

IN-SERIES BOOSTER

Refer to the Owner’s Guide and Installation Instructions supplied with the in-series water heater for the commissioning procedure of the in-series water heater.

If a continuous flow gas water heater has been installed as an in-series gas booster to the solar water heater, then to complete the installation, it is necessary to check the gas supply pressure at the inlet to the in-series gas booster, and also the minimum test point pressure and the maximum test point pressure of the in-series gas booster. Refer to “Gas Inlet Pressure” and to “Burner Gas Pressure” in the Owner’s Guide and Installation Instructions supplied with the in-series gas booster.

PRESET OUTLET TEMPERATURE

Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in

potable water. If this water heater is installed with an in-series continuous flow gas booster, then this requirement of AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature setting is 70°C or higher and a remote temperature controller or an EZiSET kit is not used.

It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous flow water heater or the thermostat setting of a storage water heater when it is installed as an in-series booster to a solar water heater or if it is an existing water heater and a solar water heater is then installed.

Refer to the Owner’s Guide and Installation Instructions supplied with the in-series continuous flow gas booster for the procedure to check and adjust the preset outlet temperature if required.

Refer to the Owner’s Guide and Installation Instructions supplied with the in-series storage booster for the procedure to check and adjust the thermostat setting if required.

Note: Consideration must be given to the delivery temperature to any ablution and public areas such as a bathroom, ensuite or public amenities. Refer to “Hot Water Delivery” on page 26 and to the schematics of “Two

Temperature Zones Using A Temperature Limiting Device” on page 27.

BLEEDING THE SOLAR COLLECTOR(S)

Upon completion of the installation, if the service 3way valve was not opened during the tank filling procedure, then it is necessary to purge the air from the collector circuit.

To purge air from the collector circuit:  Ensure the water heater is full of water and all of

the hot taps are turned off.  Using a pair of pliers or other appropriate tool,

open the service 3-way valve fitted at the solar hot

water inlet (from collector) of the solar storage

tank (see diagram).

Warning: Stand well aside of the service valve drain pipe discharge point and exercise care to avoid any splashing of water, as water or in some circumstances steam discharged from the solar collector(s) may be of a very high temperature.

 The mains pressure will force water to flow from the tank and through the pipe work, forcing air from the

collector circuit through the service valve. This is evidenced by spurting of water from the drain line connected to the service valve.

Note: Allow water to flow from the drain line for a few minutes before closing the service valve. Water already in the solar hot pipe will drain out prior to air in the top of the collector circuit being purged by the mains pressure water rising in the solar cold pipe.

 Close the service valve when water runs freely under mains pressure from the drain line.

Page 51

COMMISSIONING

SOLAR CONTROLLER OPERATION AT START-UP

When the electrical supply is switched on to the solar control unit at start-up:  If there is no solar gain, the circulator will not activate and the green LED will emit a slow pulse.

The slow pulse indicates the circulator is not activated and the power to the solar control unit has been on for less than 48 hours.

 If there is solar gain, the circulator activates and the green LED will emit a series of three (3) flashes.

The three (3) flashes indicate the circulator is operating and power to the solar control unit has been on for less than 48 hours.

 The circulator will operate at full speed for approximately fifteen (15) seconds.

After fifteen (15) seconds, the solar controller will commence to pulse the circulator to reduce the flow rate through the collector circuit. This will increase the temperature rise across the solar collector(s) and assist in maximising the system efficiency for the available solar energy. It is normal operation for the circulator to experience a pulsing effect.

 The red LED may emit a rapid pulse for a short period (whilst the green LED is emitting a series of three (3)

flashes), particularly if the solar collector(s) were left uncovered during the final stages of the installation and commissioning procedure.

This indicates a temperature difference between the hot sensor and cold sensor of greater than 45°C and does not represent a fault code. This is the result of a build-up of heat and increase in water temperature in the solar collector(s) prior to the switching on of the electrical supply to the solar control unit.

The rapid pulsing of the red LED will cease as the water circulates and the heat is dissipated from the solar collector(s). This should be within four (4) to five (5) minutes of start-up, but may take up to ten (10) minutes.

Whilst the red LED is emitting a rapid pulse, the circulator will operate at full speed. After the red LED has extinguished, the solar controller will commence to pulse the circulator to reduce the flow rate through the collector circuit.

If the red LED does continue to emit a rapid pulse for longer than ten (10) minutes, this may indicate water is not circulating through the solar collector(s) and collector circuit:

 switch off the electrical supply at the power outlet to the solar control unit  repeat the procedure to bleed the solar collector(s)  switch on the electrical supply at the power outlet to the solar control unit.

Page 52

COMMISSIONING

Flashes

Operational Modes

Flashes

Indicator or Fault Modes

solid green

(remains on)

Standby mode

solid red

(remains on)

Hot sensor temperature greater than 130°C

green

slow pulse

Standby mode (power on for less than 48 hours)

red

rapid pulse

Temperature rise across collector greater than 45°C (circulator at full speed)

green

rapid pulse

Circulating water through collector(s)

3 x red

Hot sensor in collector – short circuit

3 x green

Circulating water through collector(s) (power on for less than 48 hours)

4 x red

Hot sensor in collector – open circuit

no green

(remains off)

Power outage or call for service

5 x red

Cold sensor –short circuit

6 x red

Cold sensor – open circuit

DIAGNOSTIC FEATURES OF THE SOLAR CONTROLLER

A solar monitor is located on the side of the solar control unit and houses both a green and a red LED.

The green LED, marked “Solar”, indicates the current operational mode of the solar water heater and the red

LED, marked “Attention”, may indicate a potential fault mode.

The green LED will emit either a constant glow, a constant pulsing or a series of flashes, with a two (2) second interval between each series.

The modes are:

Note: During periods of high solar radiation and if the circulator activates after having been off, such as during start-up if the solar collector(s) have not been covered, it is possible the red LED may emit a rapid pulse for a period of up to ten (10) minutes. This does not indicate a fault. Refer to “Solar Controller Operation at Start-

Up” on page 51 for the possible green and red LED pulsing sequence during start-up procedure.

Page 53

DRAINING THE WATER HEATER

To drain the water heater:

 Cover the solar collector(s) with an opaque material.  Open a hot water tap and allow the water to run for five minutes immediately prior to draining the solar

storage tank. This will assist in the transfer of any high temperature water in the solar collector(s) to the solar storage

tank.

 Close the hot water tap.  Turn off the water heater (refer to “To Turn Off The Water Heater” on page 49).

Warning: Exercise care, as water discharged from the solar storage tank may be of a very high temperature.

 Operate the relief valve release lever - do not let the lever snap back or you will damage the valve seat.

Operating the lever will release the pressure in the water heater.

 Undo the union at the cold water inlet and attach a hose.

Let the other end of the hose go to a drain.

 Operate the relief valve again.

This will let air into the water heater and allow the water to drain through the hose.

DRAINING THE SOLAR COLLECTOR(S)

To drain the solar collector(s) and the solar hot and solar cold pipes:

 Cover the solar collector(s) with an opaque material.  Open a hot water tap and allow the water to run for five minutes immediately prior to draining the solar

collector(s). This will assist in the transfer of any high temperature water in the solar collector(s) to the solar storage

tank.

 Close the hot water tap.  Turn off the water heater (refer to “To Turn Off The Water Heater” on page 49).

Warning: Exercise care, as water discharged from the solar collector(s) may be of a very high temperature.

 Using a pair of pliers or other appropriate tool, open the service valve fitted at the solar hot water inlet of

the solar storage tank (refer to diagram on page 50).

 Undo the compression fitting on the union located to the right of the solar control unit, and disconnect the

solar cold pipe. Water will now drain from the solar collector(s) and the solar hot and solar cold pipes.

 When water stops flowing from the solar hot and solar cold pipes, reconnect the solar cold pipe at the

union and tighten the compression fitting.

 Close the service valve.

Page 54

PURGING AND FLUSHING THE SOLAR COLLECTOR(S)

Upon completion of the installation, if the service 3-way valve was not opened during the tank filling procedure, then it is necessary to purge the air from the collector circuit.

Other than at the time of the water heater’s installation, it will be necessary to purge air from the collector circuit:

 When the water heater is to be turned on and the solar collector(s) and solar hot and solar cold pipes have

been drained.

 After maintenance has been conducted on the pipe work and air has entered the system.  If the circulator appears not to be circulating water around the system.

It is recommended to flush the solar collector(s) every five (5) years. This will assist in keeping the solar collector(s), and solar hot and solar cold pipes clear of sediment.

It may also be necessary to flush the solar collector(s) if there is sediment in the water supply.

Warning: Other than at the time of the water heater’s installation, it is recommended purging air from the collector circuit or flushing of the solar collector(s) be conducted early in the morning, within three (3) hours of sunrise, when the sun is low in the sky. The water temperature inside the solar collector(s) is lower as the solar collector(s) would not have had a chance to gain as much heat as later in the day. Purging air from the collector circuit or flushing the solar collector(s) at a time later than this can result in the discharge of high temperature water and in some circumstances, high temperature steam.

To purge air from the collector circuit or flush the solar collector(s):

 Open a hot water tap and allow the water to run for five (5) minutes.  Close the hot tap.  Wait a further five (5) minutes before attempting to purge air from the collector circuit or flush the solar

collector(s). This will assist in the transfer of any high temperature water in the solar collector(s) to the solar storage

tank.

Warning: Exercise care, as water discharged from the solar collector(s) may be of a very high

temperature.

 Follow the procedure “Bleeding the Solar Collector(s)” on page 50, allowing the water to flow from the

service valve drain line for a few minutes before closing the service valve.

Page 55

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Page 58

RHEEM SOLAR LOLINE WATER HEATER WARRANTY

– AUSTRALIA ONLY –

SOLAR WATER HEATER MODEL 511161

1. THE RHEEM WARRANTY – GENERAL

1.1 This warranty is given by Rheem Australia Pty Limited ABN 21 098 823 511 of 1 Alan Street, Rydalmere New South Wales.

1.2 Rheem offer a trained and qualified national service network who will repair or replace components at the address of the water heater subject to the terms of the Rheem warranty. Rheem Service, in addition can provide preventative maintenance and advice on the operation of your water heater. The Rheem Service contact number is 131031, with Contact Centre personnel available 24 hours, 7 days a week to take your call and if necessary to arrange a service call for during normal working hours Monday to Friday (hours subject to change).

1.3 For details about this warranty, you can contact us on 131031 or by email at

warrantyenquiry@rheem.com.au (not for service bookings).

1.4 The terms of this warranty and what is covered by it are set out in sections 2 and 3 and apply to water heaters manufactured after 1st July 2013.

1.5 If a subsequent version of this warranty is published, the terms of that warranty and what is covered by it will apply to water heaters manufactured after the date specified in the subsequent version.

2. TERMS OF THE RHEEM WARRANTY AND EXCLUSIONS TO IT

2.1 The decision of whether to repair or replace a faulty component is at Rheem’s sole discretion.

2.2 If you require a call out and we find that the fault is not covered by the Rheem warranty, you are responsible for our standard call out charge. If you wish to have the relevant component repaired or replaced by Rheem, that service will be at your cost.

2.3 Where a failed component or cylinder is replaced under this warranty, the balance of the original warranty period will remain effective. The replacement does not carry a new Rheem warranty.

2.4 Where the water heater is installed outside the boundaries of a metropolitan area as defined by Rheem or further than 25 km from either a regional Rheem branch office or an Accredited Rheem Service Agent's office, the cost of transport, insurance and travelling between the nearest branch office or Rheem Accredited Service Agent’s office and the installed site shall be the owner’s responsibility.

2.5 Where the water heater is installed in a position that does not allow safe or ready access, the cost of that access, including the cost of additional materials handling and/or safety equipment, shall be the owner’s responsibility. In other words, the cost of dismantling or removing cupboards, doors or walls and the cost of any special equipment to bring the water heater to floor or ground level or to a serviceable position is not covered by this warranty.

2.6 This warranty only applies to the original and genuine Rheem water heater in its original installed location and any genuine Rheem replacement parts.

2.7 The Rheem warranty does not cover faults that are a result of:

a) Accidental damage to the water heater or any component (for example: (i) Acts of God such as

floods, storms, fires, lightning strikes and the like; and (ii) third party acts or omissions). b) Misuse or abnormal use of the water heater. c) Installation not in accordance with the Owner’s Guide and Installation Instructions or with relevant

statutory and local requirements in the State or Territory in which the water heater is installed. d) Connection at any time to a water supply that does not comply with the water supply guidelines as

outlined in the Owner’s Guide and Installation Instructions. e) Repairs, attempts to repair or modifications to the water heater by a person other than Rheem

Service or a Rheem Accredited Service Agent. f) Faulty plumbing or faulty power supply.

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RHEEM SOLAR LOLINE WATER HEATER WARRANTY

What components are

covered

The period from the date of

installation in which the

fault must appear in order to

be covered

What coverage you receive

511 series 160 model

All components

Year 1

Repair and/or replacement of the faulty component, free of charge, including labour.

The cylinder

(if the water heater is installed

in a single-family

domestic dwelling)

Years 2 & 3

Repair and / or replacement of the cylinder, free of charge, including labour.

Years 4 & 5

Replacement cylinder, free of charge. Installation and repair labour costs are the responsibility of the owner.

The cylinder

(if the water heater is not

installed in a single-family

domestic dwelling)

Years 2 & 3

Replacement cylinder, free of charge. Installation and repair labour costs are the responsibility of the owner.

The solar collector

(all installations)

Years 2 to 5

Replacement solar collector, free of charge. Installation and repair labour costs are the responsibility of the owner.

– AUSTRALIA ONLY –

SOLAR WATER HEATER MODEL 511161

g) Failure to maintain the water heater in accordance with the Owner's Guide and Installation

Instructions. h) Transport damage. i) Fair wear and tear from adverse conditions (for example, corrosion). j) Cosmetic defects. k) Breakage of collector glass for any reason including hail damage (we suggest that the collector

glass be covered by your home insurance policy). l) Ice formation in the waterways of a water heater system incorporating a freeze protection system

where the electricity supply has been switched off or has failed or where it is installed at an altitude

more than 400 metres above sea level.

2.8 Subject to any statutory provisions to the contrary, this warranty excludes any and all claims for damage to furniture, carpet, 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.

2.9 If the water heater is not sized to supply the hot water demand in accordance with the guidelines in the Rheem water heater literature, any resultant fault will not be covered by the Rheem warranty.

3. WHAT IS COVERED BY THE RHEEM WARRANTY

FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT

3.1 Rheem will repair or replace a faulty component of your water heater if it fails to operate in accordance with its specifications as follows:

Page 60

RHEEM SOLAR LOLINE WATER HEATER WARRANTY

RHEEM AUSTRALIA PTY LTD, A.B.N. 21 098 823 511, www.rheem.com.au

For Service Telephone 131 031 AUSTRALIA

– AUSTRALIA ONLY –

SOLAR WATER HEATER MODEL 511161

4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY

4.1 To be entitled to make a claim under this warranty you need to: a) Be the owner of the water heater or have consent of the owner to act on their behalf b) Contact Rheem Service without undue delay after detection of the defect and, in any event, within

the applicable warranty period.

4.2 You are not entitled to make a claim under this warranty if your water heater: a) Does not have its original serial numbers or rating labels. b) Is not installed in Australia.

5. HOW TO MAKE A CLAIM UNDER THIS WARRANTY

5.1 If you wish to make a claim under this warranty, you need to: a) Contact Rheem on 131031 and provide owner’s details, address of the water heater, a contact

number and date of installation of the water heater or if that’s unavailable, the date of manufacture

and serial number (from the rating label on the water heater) b) Rheem will arrange for the water heater to be tested and assessed on-site. c) If Rheem determines that you have a valid warranty claim, Rheem will repair or replace the water

heater in accordance with this warranty

5.2 Any expenses incurred in the making of a claim under this warranty will be borne by you.

6. THE AUSTRALIAN CONSUMER LAW

6.1 Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

6.2 The Rheem warranty (set out above) is in addition to any rights and remedies that you may have under the Australian Consumer Law.

Revision Date: 2018 November 122491E

Rheem 511161 Owner's Manual And Installation Instructions

CONTENTS

ABOUT YOUR WATER HEATER

WATER HEATER APPLICATION

MODEL TYPE

MAINS PRESSURE

SOLAR OPERATION

Normal operation

Over-temperature operation

Night Time Cooling operation

Freeze Protection operation

Standby mode

Solar Monitor LED operation

HOW HOT SHOULD THE WATER BE?

HOTTER WATER INCREASES THE RISK OF SCALD INJURY

SAFETY

WARNINGS

PRECAUTIONS

FREEZE PROTECTION

SOLAR MONITOR

TO TURN OFF THE WATER HEATER

TO TURN ON THE WATER HEATER

GOING ON HOLIDAYS

HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?

VICTORIAN CUSTOMERS

DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?

HOW LONG WILL THE WATER HEATER LAST?

MAINTENANCE REQUIREMENTS

MINOR MAINTENANCE EVERY SIX MONTHS

MAJOR SERVICE EVERY FIVE YEARS

TEMPERATURE PRESSURE RELIEF VALVE

EXPANSION CONTROL VALVE

COLLECTOR GLASS

HOUSEHOLD MAINTENANCE AROUND THE SOLAR STORAGE TANK

WATER SUPPLIES

CHANGE OF WATER SUPPLY

ANODE

ANODE INSPECTION AND REPLACEMENT

CAUTION

SATURATION INDEX

SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY

SAVE A SERVICE CALL

NOT ENOUGH HOT WATER (OR NO HOT WATER)

TEMPERATURE PRESSURE RELIEF VALVE RUNNING

EXPANSION CONTROL VALVE RUNNING

IN-SERIES WATER HEATER OPERATING TOO FREQUENTLY

Fan Continues To Run After Water Heater Operation Stops

COLLECTOR GLASS

NOISE FROM THE SOLAR COLLECTORS

GREEN LED IS NOT ILLUMINATED ON SOLAR MONITOR

RED LED ILLUMINATED ON SOLAR MONITOR

Constant Glow

Rapid Pulsing

Series of Flashes

CIRCULATOR OPERATES AT NIGHT

HIGHER THAN EXPECTED GAS BILLS

INSTALLATION – SYSTEM

IMPORTANT NOTES

FREEZE PROTECTION

INSTALLATION STANDARDS

Victorian Installers

WATER HEATER APPLICATION

Installing the Water Heater as a Pre-Heater

INSTALLATION – SOLAR STORAGE TANK

SOLAR WATER HEATER STORAGE TANK LOCATION

SAFE TRAY

MAINS WATER SUPPLY

TANK WATER SUPPLY

WALL BRACKET

HOT WATER DELIVERY

CIRCULATED HOT WATER FLOW AND RETURN SYSTEM

Temperature Limiting Device

REDUCING HEAT LOSSES

ANODE

SADDLING - PIPE WORK

ANTI-FREEZE HEATING UNIT

MOUNTING THE GAS BOOSTER

DIMENSIONS AND TECHNICAL DATA

TYPICAL INSTALLATION (INTEGRATED BOOST) – OUTDOOR LOCATION

TYPICAL INSTALLATION (REMOTE BOOST) – OUTDOOR LOCATION