Page 2 - PATENTS; in the name of Rheem Australia Pty Ltd.; TRADEMARKS; ® Registered trademark of Rheem Australia Pty Ltd.
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...
Page 3 - CONTENTS; HOUSEHOLDER - We recommend you read pages 4 to 19.; The other pages are intended for the installer
3 CONTENTS HOUSEHOLDER - We recommend you read pages 4 to 19. The other pages are intended for the installer but may be of interest About Your Water Heater ............................................................ 4 Maintenance Requirements ...................................................... 1...
Page 4 - ABOUT YOUR WATER HEATER; WATER HEATER APPLICATION; “Single Element Model”; HOW HOT SHOULD THE WATER BE?; “Temperature
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. MAINS PRESSURE The water heater is designed to operate at mains pres...
Page 5 - HOTTER WATER INCREASES THE RISK OF SCALD INJURY; “Hotter Water Increases The Risk of; WARNING
ABOUT YOUR WATER HEATER 5 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 ...
Page 6 - SAFETY; For continued safety of this water heater it must be installed,; PRECAUTIONS; “Maintenance Requirements”
ABOUT YOUR WATER HEATER 6 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 i...
Page 7 - Some
ABOUT YOUR WATER HEATER 7 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-P...
Page 8 - TO TURN OFF THE WATER HEATER; Installation requirements are shown on; VICTORIAN CUSTOMERS
ABOUT YOUR WATER HEATER 8 TO TURN OFF THE WATER HEATER If you plan to be away from home for only 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 at the isolating switch to the water heater. Close t...
Page 9 - DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?; “Water Supplies”; HOW LONG WILL THE WATER HEATER LAST?; The water heater is supported by a
ABOUT YOUR WATER HEATER 9 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, its components and fittings. Refer to “Water Supplies” on page 13. If you are in a...
Page 10 - MAINTENANCE REQUIREMENTS; MAJOR SERVICE EVERY FIVE YEARS; : Servicing of a water heater must only be carried out by qualified
10 MAINTENANCE REQUIREMENTS MAJOR SERVICE EVERY FIVE 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 five (5) year service and routine replacement of any components, such as the anod...
Page 11 - MINOR MAINTENANCE EVERY SIX MONTHS; EXPANSION CONTROL VALVE; “Minor Maintenance Every Six Months”; It is very important; If water does not flow freely from the
MAINTENANCE REQUIREMENTS 11 MINOR MAINTENANCE EVERY SIX 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 “Temper...
Page 12 - TEMPERATURE PRESSURE RELIEF VALVE; It is very; Failure to do this may result
MAINTENANCE REQUIREMENTS 12 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 expan...
Page 13 - WATER SUPPLIES; ANODE; Anode Selection chart
13 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 detriment...
Page 14 - ANODE INSPECTION AND REPLACEMENT; “Major Service Every Five Years”; CAUTION
WATER SUPPLIES 14 ANODE INSPECTION AND REPLACEMENT The anode installed in your 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 ma...
Page 15 - Saturation Index chart
WATER SUPPLIES 15 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. Wh...
Page 16 - CHANGE OF WATER SUPPLY; water heater cylinder
WATER SUPPLIES 16 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 wate...
Page 17 - SAVE A SERVICE CALL; : Check the electricity supply to which
17 SAVE A SERVICE CALL Check the items below before making a service call. You will be charged for attending to any condition or fault that is not related to the manufacture or failure of a part. NOT ENOUGH HOT WATER (OR NO HOT WATER) Is the electricity switched on? Inspect the isolating switch ma...
Page 18 - TEMPERATURE PRESSURE RELIEF VALVE RUNNING; “Temperature Pressure Relief Valve”; must; be switched off at the switchboard. Phone Rheem; EXPANSION CONTROL VALVE RUNNING; cold water connection diagram
SAVE A SERVICE CALL 18 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. However, if it discharges more than a bucket full of water in 24 hours, there may be another problem. ...
Page 19 - HIGHER THAN EXPECTED ELECTRICITY BILLS; “Temperature Pressure Relief; ELECTRICITY TARIFFS; “Single Element Model”
SAVE A SERVICE CALL 19 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 18. Is one ou...
Page 20 - INSTALLATION; THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING; The water heater must be installed:
20 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 regulat...
Page 21 - SAFE TRAY; codes
INSTALLATION 21 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 ...
Page 22 - MAINS WATER SUPPLY; Model; Temp press relief valve setting; TANK WATER SUPPLY
INSTALLATION 22 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 29. Model 250 to 400 Temp press relief valve setting 1000 kPa Exp...
Page 23 - HOT WATER DELIVERY; Two Temperature Zones Using a Temperature Limiting Device
INSTALLATION 23 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 a Rheem 49 series water heater and the hot water outlets in any ablution area such as a bathroom or e...
Page 24 - CIRCULATED HOT WATER FLOW AND RETURN SYSTEM; The thermostat must always be set to at least 60°C.; Temperature Limiting Device
INSTALLATION 24 CIRCULATED HOT WATER FLOW AND RETURN SYSTEM If a Rheem electric 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...
Page 25 - Off-Peak or Time Controlled Electricity Supply; Circulated Hot Water Flow and Return; Circulated Hot Water Flow and Return System
INSTALLATION 25 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 wi...
Page 26 - “Water Supplies”; SADDLING PIPE WORK
INSTALLATION 26 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 wate...
Page 27 - TYPICAL INSTALLATION
INSTALLATION 27 TYPICAL INSTALLATION – OUTDOOR LOCATION TYPICAL INSTALLATION – INDOOR LOCATION
Page 28 - DIMENSIONS AND TECHNICAL DATA
INSTALLATION 28 DIMENSIONS AND TECHNICAL DATA – RHEEM 49 SERIES 250 TO 400 Single Element Twin Element DH DH 491250 492250 491315 492315 491400 492400 Hot Water Delivery Litres 250 315 400 Boost Capacity Litres 50 50 90 Dimensions A mm 1395 1640 1840 B mm 640 640 690 C mm 680 680 730 D mm 1117 1317 ...
Page 29 - CONNECTIONS – PLUMBING; CONNECTION SIZES; Rheem 49 series; WATER INLET AND OUTLET; “Hot
29 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 to the New Zealand Building Code. CONNECTION SIZES Rhee...
Page 30 - LEFT AND RIGHT HAND SIDE WATER CONNECTIONS; INSULATION CAP & DISK ASSEMBLY; BRASS PLUG
CONNECTIONS – PLUMBING 30 LEFT AND RIGHT HAND SIDE WATER CONNECTIONS The cold and hot water supplies 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. The...
Page 31 - PIPE SIZES; labelled “Relief Valve” (refer to the
CONNECTIONS – PLUMBING 31 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, ch...
Page 32 - RELIEF VALVE DRAIN
CONNECTIONS – PLUMBING 32 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 13). Th...
Page 34 - CONNECTIONS – ELECTRICAL; WATER HEATER; twin element model; THERMOSTAT SETTING
34 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 Rul...
Page 35 - – fixed setting
CONNECTIONS – ELECTRICAL 35 WIRING DIAGRAM TWIN ELEMENT ELECTRIC WATER HEATERS NON-SIMULTANEOUS OPERATION OFF-PEAK CONNECTION Top thermostat – fixed setting 60°C. Bottom thermostat – tradesperson adjustable min 60°C, max 70°C. Electrical Circuit for Twin Element Models – Robertshaw “ST” Thermostats ...
Page 36 - COMMISSIONING; and a satisfactory megger reading is obtained.
36 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...
Page 37 - DRAINING THE WATER HEATER; “To Turn Off The Water Heater”
37 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 36). Close all hot water taps. Operate the relief valve releas...
Page 38 - THE RHEEM WARRANTY – GENERAL
38 RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATERS 491, 492 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 ...
Page 39 - as outlined in the Owner’s Guide and Installation Instructions.
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY 39 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...
Page 40 - ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY; RHEEM AUSTRALIA PTY LTD
RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY Revision Date: 2015 April 122251A 40 ELECTRIC WATER HEATERS 491, 492 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 wate...
