Owner’s Guide and Installation Instructions Stainless Steel Electric Domestic Water Heater This water heater must be installed and serviced by a qualified person. Please leave this guide with the householder.
PATENTS This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd or Aquamax Australia Pty Limited. TRADEMARKS ® Registered trademark of Rheem Australia Pty Ltd. TM Trademark of Rheem Australia Pty Ltd. Note: Every care has been taken to ensure the accuracy in preparation of this publication. No liability can be accepted for any consequences, which may arise as a result of its application.
CONTENTS HOUSEHOLDER This booklet contains important information about your new water heater, including terms of the Rheem warranty. We recommend you read pages 8 to 23, and the terms of the Rheem warranty on pages 4 to 7. The other pages are intended for the installer but may be of interest. Warranty .......................................................................................4 About Your Water Heater ............................................................8 Maintenance Requirements ......
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY RHEEM STELLAR STAINLESS STEEL ELECTRIC MODELS 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 ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY RHEEM STELLAR STAINLESS STEEL ELECTRIC MODELS 2.
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY RHEEM STELLAR STAINLESS STEEL ELECTRIC MODELS 2.
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY RHEEM STELLAR STAINLESS STEEL ELECTRIC MODELS 4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY 4.1 4.2 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.
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 The Rheem® water heater you have chosen is a Stellar™ model with a stainless steel cylinder.
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.
ABOUT YOUR WATER HEATER SAFETY This water heater is supplied with a thermostat, an over-temperature cut-out, and a combination temperature pressure relief valve. These devices must not be tampered with or removed. The water heater must not be operated unless each of these devices is fitted and is in working order. The operation of the over-temperature cut-out on the thermostat indicates a possibly dangerous situation.
ABOUT YOUR WATER HEATER SINGLE ELEMENT MODEL This type of water heater has one heating unit with its own thermostat, located at the base of the water heater. Continuous electricity supply This type of connection is suited to where the storage capacity is less than the normal daily usage. Off-Peak electricity supply This type of connection will only allow heating to occur during set hours. A volume of water sufficient for the day’s total use is heated and stored.
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 14.
ABOUT YOUR WATER HEATER HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 24 to 30. The water heater must be installed: by a qualified person, and in accordance with the installation instructions, and in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local codes and regulatory authority requirements. VICTORIAN CUSTOMERS Notice to Victorian Customers from the Victorian Plumbing Industry Commission.
MAINTENANCE REQUIREMENTS MAJOR SERVICE EVERY SIX YEARS It is recommended a major service be conducted on the water heater every six (6) years. 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 relief valve(s), are not included in the Rheem warranty. A charge will be made for this work.
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 16.
MAINTENANCE REQUIREMENTS 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 22).
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. A list of postcodes is available on the Rheem website (www.rheem.com.
WATER SUPPLIES CHLORIDE AND PH In a high chloride water supply, the water can corrode stainless steel parts and cause them to fail. Where the chloride level exceeds 250 mg / L the Rheem warranty does not apply to a stainless steel cylinder. pH is a measure of whether the water is alkaline or acid. In an acidic or very alkaline water supply, the water can attack stainless steel parts and cause them to fail. Where the pH is less than 6.0 or greater than 9.
WATER SUPPLIES 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.
WATER SUPPLIES TOTAL DISSOLVED SOLIDS The stainless steel 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 600 mg / L. 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.
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 the manufacture or failure of a part. NOT ENOUGH HOT WATER (OR NO HOT WATER) Is the electricity switched on? Inspect the isolating switch marked “HOT WATER” or “WATER HEATER” at the switchboard and the isolating switch (if one is installed) near the water heater and ensure they are turned on.
SAVE A SERVICE CALL Water heater size Do you have the correct size water heater for your requirements? The sizing guide in the Rheem sales literature and on the Rheem website (www.rheem.com.au) suggests average sizes that may be needed. TEMPERATURE PRESSURE RELIEF VALVE RUNNING Normal Operation It is normal and desirable that this valve allows a small quantity of water to escape during the heating cycle.
SAVE A SERVICE CALL HIGHER THAN EXPECTED ELECTRICITY BILLS Should you at any time, feel your electricity 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 22. Is one outlet (especially the shower) using more hot water than you think? Refer to “Not Enough Hot Water (or No Hot Water)” on page 21.
INSTALLATION THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING INSTALLATION STANDARDS The water heater must be installed: by a qualified person, and in accordance with the installation instructions, and in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local codes and regulatory authority requirements. All packaging materials must be removed from the water heater prior to its installation.
INSTALLATION Make sure the temperature pressure relief valve lever is accessible and the front cover, thermostat and heating unit can be removed for service. You must be able to read the information on the rating plate. Remember you may have to take the entire water heater out later for servicing. The water heater is to be installed at ground or floor level and must stand vertically upright on a stable base as acceptable to local authorities.
INSTALLATION 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 cold water connection diagram on page 33. 050 to 160 250, 315 Temp pressure relief valve setting 1400 kPa 1000 kPa Expansion control valve setting* 1200 kPa 850 kPa With expansion control valve 960 kPa 680 kPa Without expansion control valve 1120 kPa 800 kPa Model Max.
INSTALLATION 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 this water heater and the hot water outlets in any ablution area such as a bathroom or ensuite, to reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the installation of this water heater meets the delivery water temperature requirements of AS/NZS 3500.
INSTALLATION CIRCULATED HOT WATER FLOW AND RETURN SYSTEM If a Rheem water heater is to be installed as part of a circulated hot water flow and return system, it must be able to provide a hot water outlet temperature of at least 60°C. Note: The thermostat must always be set to at least 60°C. Refer to the Circulated Hot Water Flow and Return – Continuous Electric Water Heater diagram on page 28.
INSTALLATION Off-Peak or Time Controlled Electricity Supply A single or twin element electric water heater connected to an Off-Peak electricity supply should not be installed as part of a circulated hot water flow and return system in a building. The benefits of the Off-Peak electricity supply will be significantly reduced. If a circulated flow and return system is required, it is necessary to install a secondary water heater supplied from the Off-Peak electric water heater.
INSTALLATION TYPICAL INSTALLATION – OUTDOOR LOCATION TYPICAL INSTALLATION – INDOOR LOCATION 30
INSTALLATION DIMENSIONS AND TECHNICAL DATA – 050 MODELS Single Element 4A1050 Hot Water Delivery Litres 50 TPR Valve Setting kPa 1400 kg 17 Weight empty 4A1050 models are suitable for either indoor or outdoor installation, except a water heater supplied with a power supply cord and plug (‘/P’ suffix) is suitable for indoor installation only. 4A1050 models have left and right hand (dual handed - DH) water and TPR valve connections. Technical data is subject to change.
INSTALLATION DIMENSIONS AND TECHNICAL DATA – 080 TO 315 MODELS Single Element Twin Element 4A1080 4A1125 4A1160 4A1250 4A1315 - - - 4A2250 4A2315 315 Hot Water Delivery Litres 80 125 160 250 Boost Capacity Litres - - - 52 62 A mm 885 1295 1615 1440 1760 B C mm mm 495 500 495 500 495 500 625 630 625 630 D E F mm mm mm 510 185 105 920 185 105 1240 185 105 1000 220 145 1320 220 145 G H mm deg 25 25 25 939 30 1207 30 J M deg deg 55 125 55 125 55 125 60
CONNECTIONS – PLUMBING All plumbing work must be carried out by a qualified person and in accordance with the Standard AS/NZS 3500.4 and all local codes and regulatory authority requirements. CONNECTION SIZES Hot water connection: Rp 3/4 Cold water connection: Rp 3/4 Relief valve connection: Rp 1/2 WATER INLET AND OUTLET Stellar stainless steel electric models have dual handed cold water connections. The cold water connection can be made to either side of the water heater.
CONNECTIONS – PLUMBING The water heater has a plastic dip tube in the inlet fittings and the outlet fittings of a 050 model (see diagram). This must be in place for the water heater to function properly. Do not remove or damage them by using heat nearby. It will be pushed into the correct position as the fitting is screwed in. LEFT AND RIGHT HAND SIDE WATER CONNECTIONS 080 to 315 model: A ¾” brass plug is supplied with the water heater to plug off the unused cold water fitting on a 080 to 315 model.
CONNECTIONS – PLUMBING 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.
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.
CONNECTIONS – ELECTRICAL The power supply to the water heater must not be switched on until the water heater is filled with water and a satisfactory megger reading is obtained. All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the Wiring Rules AS/NZS 3000 and all local codes and regulatory authority requirements.
CONNECTIONS – ELECTRICAL The top thermostat on a twin element model has a fixed setting of 60°C. For reasons of safety and economy, we advise the thermostat be set at the lowest temperature that will provide sufficient hot water. Dishwasher running costs can be adversely affected if the thermostat is set below 65°C. Discuss the thermostat setting requirements with the householder.
COMMISSIONING TO FILL AND TURN ON THE WATER HEATER The power supply to the water heater must not be switched on until the water heater is filled with water and a satisfactory megger reading is obtained. Open all of the hot water taps in the house (don’t forget the shower). Open the cold water isolation valve fully on the cold water line to the water heater. Air will be forced out of the taps. Close each tap as water flows freely from it. Check the pipe work for leaks.
DRAINING THE WATER HEATER Warning: Exercise care, as water discharged from the water heater may be of a very high temperature. To drain the water heater: Turn off the water heater (refer to “To Turn Off The Water Heater” on page 39). Close all hot water taps. 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.
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Revision Date: 2017 November AQ0901097-A 44
