Owner’s Guide and Installation Instructions 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. 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 - We recommend you read pages 4 to 20. The other pages are intended for the installer but may be of interest About Your Water Heater ............................................................ 4 Regular Care .............................................................................. 10 Water Supplies ........................................................................... 14 Save A Service Call ...................................................................
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 will be either a Rheemglas ® or RheemPlus™ model.
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 WARNING This water heater is only intended to be operated by persons who have the experience or the knowledge and the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical, sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do not interfere with the water heater. This water heater uses 240 V AC power for the electrically operated components.
ABOUT YOUR WATER HEATER SINGLE ELEMENT MODEL This type of water heater has one heating unit with its own thermostat. The heating unit is 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 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 23, a pressure limiting valve must be fitted. The supply pressure should be greater than 350 kPa for true mains pressure operation to be achieved. 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.
ABOUT YOUR WATER HEATER GOING ON HOLIDAY? If you plan to be away from home for one or two nights, we suggest you leave the water heater switched on. However, if you plan to stay away more than a few nights, conserve energy by switching the water heater off at either the switchboard or isolating switch. HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 21 to 28.
REGULAR CARE MAJOR FIVE YEAR SERVICE It is recommended a major five year service be conducted on the water heater. Warning: Servicing of a water heater must only be carried out by qualified personnel. Phone Rheem Service or their nearest Accredited Service Agent. Note: The five year 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.
REGULAR CARE MINOR SIX MONTH MAINTENANCE It is recommended minor maintenance be performed every six months by the dwelling occupant. The minor maintenance includes: Operate the easing lever on the temperature pressure relief valve. It is very important you raise and lower the lever gently. Refer to “Temperature Pressure Relief Valve” on page 12. Warning: Exercise care to avoid any splashing of water, as water discharged from the drain line will be hot.
REGULAR CARE TEMPERATURE PRESSURE RELIEF VALVE This valve is near the top of the water heater and is essential for its safe operation. It is possible for the valve to release a little water through the drain line during each heating period. This occurs as the water is heated and expands by approximately 1/50 of its volume. 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).
REGULAR CARE TEMPERATURE LIMITING VALVE A RheemPlus water heater is fitted with a temperature limiting valve at the hot water outlet. The valve is set to deliver water not exceeding 50°C. The valve should be checked for performance every twelve months. This can be performed by measuring the water temperature from the hot tap nearest to the water heater with a thermometer.
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.
WATER SUPPLIES TOTAL DISSOLVED SOLIDS & CONDUCTIVITY (vitreous enamel lined water heater cylinder) no warranty applies warranty applies to a vitreous enamel lined water heater cylinder if the correct coloured anode is used for the TDS / conductivity level of water 0 40 150 600 Black Green 0 60 400 215 570 TOTAL DISSOLVED SOLIDS (TDS) - mg/L 2500 Blue 860 CONDUCTIVITY - µS/cm to a vitreous enamel lined water heater cylinder Blue 3570 ANODE SELECTION ANODE INSPECTION AND REPLACEMENT The
WATER SUPPLIES SATURATION INDEX The saturation index is used as a measure of the water‟s corrosive or scaling properties. In a corrosive water supply, the water can attack copper parts and cause them to fail. Where the saturation index is less than –1.0, the water is very corrosive and the Rheem warranty does not apply to a copper sheathed heating unit. A corrosion resistant heating unit must be used for the Rheem warranty to apply to the heating unit.
WATER SUPPLIES CHANGE OF WATER SUPPLY The changing or alternating from one water supply to another can have a detrimental effect on the operation and / or life expectation of a water heater cylinder, a temperature pressure relief valve and a heating unit. Where there is a changeover from one water supply to another, e.g.
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. WATER TEMPERATURE TOO HIGH A RheemPlus water heater is fitted with a temperature limiting valve set to deliver water not exceeding 50°C.
SAVE A SERVICE CALL EXPANSION CONTROL VALVE RUNNING If an expansion control valve is fitted in the cold water line to the water heater (refer to page 32) 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.
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. In New Zealand the installation must also conform with the New Zealand Building Code. All packaging materials must be removed from the water heater prior to its installation.
INSTALLATION 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 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 installation diagram (refer to diagram on page 32). Model Refer to data tables on pages 29, 30, 31 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 Max.
INSTALLATION If a pressure limiting valve is installed on the cold water line to the 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.
INSTALLATION CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A RheemPlus water heater cannot be installed as part of a circulated hot water flow and return system in a building. If a Rheem water heater is to be installed as part of a circulated hot water flow and return system, a storage water heater able to provide a hot water outlet temperature of at least 60°C must be used. Note: The thermostat must always be set to at least 60°C. Refer to the diagram on page 25.
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.
INSTALLATION 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.
INSTALLATION TYPICAL INSTALLATION – OUTDOOR LOCATION OUTDOOR LOCATIONS TYPICAL INSTALLATION – INDOOR LOCATION OUTDOOR LOCATIONS INDOOR LOCATIONS TYPICAL INSTALLATION INDOOR LOCATIONS Domestic Electric Water Heaters - Dual Handed TYPICAL INSTALLATION 28 Domestic Electric Water Heaters - Dual Handed
INSTALLATION DIMENSIONS AND TECHNICAL DATA – RHEEMGLAS 025 TO 125 MODELS Rheemglas Single Element Rheemglas Single Element LH DH 111025 - 191045 191050 191080 191125 Litres 18 40 50 80 125 A mm 390 668 695 945 1340 B mm 385 393 400 480 480 C mm 420 429 436 515 515 D mm 130 346 397 702 1102 E mm 116 142 142 64 64 F mm 75 80 80 66 66 H deg 26 26 26 24 24 Hot Water Delivery Dimensions J TPR Valve Setting Approx.
INSTALLATION DIMENSIONS AND TECHNICAL DATA – RHEEMGLAS 160 TO 400 Rheemglas Single Element Rheemglas Twin Element DH DH 191160 192160 191250 192250 191315 192315 191400 192400 Hot Water Delivery Litres 160 250 315 400 Boost Capacity Litres 45 50 50 90 A mm 1610 1395 1640 1840 B mm 480 640 640 690 C mm 515 680 680 735 D mm 1332 1117 1317 1479 E mm 104 73 113 121 F mm 66 103 103 105 G mm 1081 988 1228 1323 H deg 23 32 32 30 J deg 58 88 88
INSTALLATION DIMENSIONS AND TECHNICAL DATA – RHEEMPLUS 125 TO 315 MODELS RheemPlus Single Element Hot Water Delivery Dimensions TPR Valve Setting Approx.
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. In New Zealand the installation must also conform with the New Zealand Building Code.
CONNECTIONS – PLUMBING LEFT AND RIGHT HAND SIDE WATER CONNECTIONS The cold and hot water supplies (045 to 400 models) and temperature pressure relief valve (045 to 125 models) can be connected to either side of a water heater with both left and right hand side connections. A kit is supplied with the water heater to plug off the unused cold water and hot water fittings, and where applicable the unused temperature pressure relief valve fitting.
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 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 14). 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 diagram on page 32).
CONNECTIONS – PLUMBING 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.
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 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.
CONNECTIONS – ELECTRICAL WIRING DIAGRAM TWIN ELEMENT ELECTRIC WATER HEATERS NON-SIMULTANEOUS OPERATION OFF-PEAK CONNECTION Electrical Circuit for Twin Element Models – Robertshaw “ST” Thermostats The active from the continuous supply must be connected to the top heating unit circuit and the active from the Off-Peak or time controlled supply must be connected to the bottom heating unit circuit.
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.
COMMISSIONING OUTLET TEMPERATURE COMPENSATION ADJUSTMENT – RHEEMPLUS The maximum outlet temperature of a RheemPlus water heater may be adjusted to compensate for temperature losses in the pipe work between the water heater outlet and sanitary fixtures. Warning: After adjustment of the temperature limiting valve, the water temperature MUST NOT exceed 50°C from the first tap in the hot water pipe work after the water heater used for personal hygiene purposes, such as in a bathroom or ensuite.
COMMISSIONING Turn the adjusting knob on the temperature limiting valve counter-clockwise (down away from the water heater), using a 6 mm Allen key. Turning the adjusting knob counter clockwise (down away from the water heater) increases the outlet water temperature, turning it clockwise (up towards the water heater) decreases the outlet water temperature. Repeat the water temperature measurement from the same hot tap.
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 40). 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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RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES 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 ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES 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.
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATERS 111, 121, 191, 192 SERIES 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.
