Owner’s Guide and Installation Instructions Electric Heavy Duty Water Heater This water heater must be installed and serviced by a qualified person. Please leave this guide with a responsible officer.
PATENTS This water heater may be protected by one or more patents or registered designs. ® TRADEMARKS Registered trademark of Rheem Australia Pty Ltd. TM Trademark of Rheem Australia Pty Ltd. NOTE: Every care has been taken to ensure accuracy in preparation of this publication.
CONTENTS RESPONSIBLE OFFICER – We recommend you read pages 4 to 13. The other pages are intended for the installer but may be of interest. About Your Water Heater ............................................................................................................ 4 Regular Care ................................................................................................................................ 7 Water Supplies..............................................................................
ABOUT YOUR WATER HEATER WATER HEATER APPLICATION This water heater is designed for the purpose of heating potable water. Its use in an application other than this may shorten its life. MODEL TYPE ® The Rheem Heavy Duty Electric water heater model you have chosen can be installed indoor or outdoor and is either a 50 litre or 315 litre model. The 50 litre has three heating units and the 315 litre has either three or six heating units.
ABOUT YOUR WATER HEATER THERMOSTATS The thermostats automatically control the electricity supply to the heating units so a constant temperature is maintained. The thermostats and their protective over temperature cut out are mounted inside the front cover of the water heater. There is no need to switch the water heater off when it is not in use. The thermostats are fully automatic and power is only used when heating is required.
ABOUT YOUR WATER HEATER TO TURN OFF THE WATER HEATER If it is necessary to turn off the water heater: Switch off the electrical supply at the isolating switch to the water heater(s). Close the cold water isolation valve on the cold water line to the water heater(s) to shut down the entire system, or; Close the isolation valves on the cold and hot water branches to shut down an individual water heater in a bank.
REGULAR CARE MINOR SIX MONTH MAINTENANCE It is recommended minor maintenance be performed every six months by a responsible officer. 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 8. 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 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 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 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. If the anode is not replaced during a five year service (refer to “Major Five Year Service” on page 7) then the maximum time after installation when the anode should be replaced for this electric water heater is 8 years.
WATER SUPPLIES WITHIN WARRANTY SPECIFICATION -1.0 very corrosive 0 +0.4 no warranty applies to a: -standard watts density heating unit 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 SATURATION INDEX (SI) ELECTRIC WATER HEATERS +0.
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) 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 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 the discharge is deemed excessive (more than 2% of hot water used), 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 8).
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 SAFE TRAY 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. AS/NZS 3500.4 also has particular requirements when a safe tray must be installed.
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, 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 16.
INSTALLATION 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. Keep temperature settings down. Lower temperatures reduce heat losses and prolong cylinder life. Do not set the controlling thermostats above 70°C unless it is necessary.
INSTALLATION DIMENSIONS AND TECHNICAL DATA Model 613 050 613 315 616 315 Heating Units No.
INSTALLATION TYPICAL INSTALLATION – OUTDOOR LOCATION OUTDOOR LOCATIONS TYPICAL INSTALLATION – INDOOR LOCATION OUTDOOR LOCATIONS INDOOR LOCATIONS INDOOR LOCATIONS 19
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. CONNECTION SIZES Hot water connection: Rp 1¼. Cold water connection: Rp 1¼. Relief valve connection: Rp 3/4.
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 9). 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 20).
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. Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in potable water.
CONNECTIONS – ELECTRICAL WIRING DIAGRAMS Electrical Circuit for 613 Models – Robertshaw “ST” Thermostats Electrical Circuit for 616 Models – Robertshaw “ST” Thermostats 23
MULTIPLE INSTALLATIONS A multiple installation of Rheem water heaters on a single manifold or multiple manifolds is possible, using ® the Rheem Equa-Flow manifold system, where large volumes of hot water is required. The Equa-Flow principle will function with water heaters in line, around a corner or in rows back to back (refer to the diagrams on page 25). The cold water and hot water manifolds must be designed to balance the flow from each water heater.
MULTIPLE INSTALLATIONS In Line Manifold Single Bank of Water Heaters Multiple Banks of Water Heaters Angle Manifold Back to Back Manifold TPR Valve Drain Line Common Discharge Point 25
MULTIPLE INSTALLATIONS TYPICAL INSTALLATION – RHEEM HEAVY DUTY ELECTRIC WATER HEATERS LEGEND RHEEM COMMERCIAL WATER HEATERS TYPICAL INSTALLATION INSTALLATION DIMENSIONS – RHEEM HEAVY DUTY ELECTRIC WATER HEATERS In Line Manifold Angle Manifold Back to Back Manifold Installation Layout Minimum Dimensions INSTALLATION LAYOUT MINIMUM DIMENSIONS Notes MODEL A B C D E* 1. Minimum recommended space between wall and back of water heater is 100 mm. 2.
MULTIPLE INSTALLATIONS MANIFOLD ARRANGEMENT Hot Manifold Assembly Cold Manifold Assembly 27
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 tap(s) in the building (don’t forget the shower(s)) and supply cock(s) and valve(s) in the system. Open the isolation valves fully on the cold and hot water branches to the water heater(s) installed in a bank.
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 28). 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 HEAVY DUTY ELECTRIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATER MODELS 613050, 613315, 616315 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 HEAVY DUTY ELECTRIC MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY ELECTRIC WATER HEATER MODELS 613050, 613315, 616315 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.
