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Rheem Electric Domestic Water Heater Installation And Owner's Manual

Rheem electric domestic water heater owner's guide and installation instructions
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See also: Installation & Owner's Manual

Owners Guide

and

Installation Instructions

Electric Domestic
Water Heater
This water heater must be installed and serviced by an authorised person.
Please leave this guide with the householder.

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Summary of Contents for Rheem Electric Domestic Water Heater

  • Page 1: Owners Guide

    Owners Guide Installation Instructions Electric Domestic Water Heater This water heater must be installed and serviced by an authorised person. Please leave this guide with the householder.
  • Page 2 Compliance Certificate. PATENTS 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.

  • Page 3: Table Of Contents

    HOUSEHOLDER - We recommend you read pages 4 to 14. The other pages are intended for the installer but may be of interest About Your Water Heater...4 How Your Water Heater Works...8 Regular Care ...10 Save A Service Call ...12 Installation...15...

  • Page 4: About Your Water Heater

    60°C to maximise solar contribution. 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.
  • Page 5 A RheemPlus water heater will not deliver temperatures exceeding 50°C, in accordance with AS 3498. There is no statutory requirement to fit a temperature limiting device if this water heater is installed in other than an early childhood centre, school, nursing home or a facility for young, aged, sick or disabled people.
  • Page 6 The removal of the front cover(s) will expose 240 V wiring. It must only be removed by an authorised or qualified person. A water heater fitted with a power supply cord and plug, must be plugged into a weatherproof electrical outlet if installed outdoors. Take care not to touch the power plug with wet hands.
  • Page 7 There are a number of factors that will affect the length of service the water heater will provide. These include the water quality, the water pressure, the water temperature (inlet and outlet) and the water usage pattern. However, your Rheem water heater is supported by a comprehensive warranty page 36).

  • Page 8: How Your Water Heater Works

    There is no need to switch the water heater off when it is not in use, except when you are on an extended holiday. The thermostat is fully automatic and power is only used when heating is required.
  • Page 9 TWIN ELEMENT MODEL This type of water heater has two heating units, each with its own thermostat. One heating unit is at the base of the water heater and the other near the top. • Bottom heating unit During normal heating unit supplies all the hot water.

  • Page 10: Regular Care

    – line lower gently the Rheem Service Department or their Accredited Service Agent. The temperature pressure relief valve should be checked for performance or replaced at intervals not exceeding 5 years, or more frequently in areas where there is a high incidence of water deposits (refer to “Water Supplies”...
  • Page 11 If the water is being delivered at a temperature exceeding 50°C, phone your nearest Rheem Service Department or Accredited Service Agent to arrange for an inspection.

  • Page 12: Save A Service Call

    • Twin element water heaters A twin element non-simultaneous model must have power available to the top heating unit circuit at all times for the water heater to operate as designed. • Are you using more hot water than you think?
  • Page 13 • 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) WATER TEMPERATURE TOO HIGH A RheemPlus water heater is fitted with a temperature limiting valve set to deliver water not exceeding 50°C.
  • Page 14 EXPANSION CONTROL VALVE RUNNING If an expansion control valve is fitted in the cold water line to the water heater (refer to page 23) 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.

  • Page 15: Installation

    AS/NZS 3000 and all local codes and regulatory authority requirements. In New Zealand, the installation must conform with the New Zealand Building Code. It is recommended the water heater be installed at ground or floor level and must stand vertically upright. Remember all local authorities have regulations...
  • Page 16 1 m above the highest point of the hot water plumbing system, including the water heater. Care must be taken to avoid air locks. The cold water line to the water heater should be adequately sized and fitted with a full flow gate valve or ball valve.
  • Page 17 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...
  • Page 18 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.
  • Page 19 Circulated Hot Water Flow and Return – Continuous Electric Water Heater 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.
  • Page 20 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. ANODE TYPES...
  • Page 21 INSTALLATION TYPICAL INSTALLATION – OUTDOOR LOCATION TYPICAL INSTALLATION –8INDOOR LOCATION...

  • Page 22: Dimensions And Technical Data

    DIMENSIONS AND TECHNICAL DATA Rheemglas and Optima Rheemglas Single Element Rheemglas Twin Element Optima Single Element Optima Twin Element RheemPlus Single Element Hot Water Delivery Boost Capacity Dimensions degrees degrees Approx. Weight empty 111, 411, 162, 462 and 121 models have left hand connections. 191 models have left and right hand connections and are available in 050 litre delivery capacity only.

  • Page 23: Connections - Plumbing

    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 thread sealing tape or approved thread sealant on all fittings.
  • Page 24 The cold water supply, hot water supply and temperature pressure relief valve can be connected to either side of a water heater with both left and right hand side water connections. A kit is supplied with the water heater to plug off the unused cold, hot and temperature pressure relief valve fittings.
  • Page 25 The pipe work from the relief valve to the drain should be as short as possible and fall all the way from the water heater with no restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.
  • Page 26 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 not required unless the saturation index is greater than +0.4 (refer to “Water...

  • Page 27: Connections - Electrical

    AS/NZS 3000 and local authority requirements. WATER HEATER A water heater not fitted with a supply cord and plug must be directly connected to a 240 V AC, 50 Hz mains power supply with an isolating switch installed at the switchboard. A water heater fitted with a supply cord and plug must be plugged into a switched 240 V AC, 50 Hz mains power outlet rated at 10 A.
  • Page 28 ASSEMBLY OF ADJUSTER MECHANISM ON OPTIMA MODEL When the front cover has been removed, reassemble as follows: • Remove the knob from the front cover by depressing the locking tabs on the inside of the front cover. • Turn the thermostat to the lowest temperature (refer to Adjustment”...
  • Page 29 CONNECTIONS – ELECTRICAL 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.

  • Page 30: Commissioning

    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;...

  • Page 31: Draining The Water Heater

    Operating the lever will release the pressure in the water heater. • Undo the union at the cold water inlet to the water heater and attach a hose to the water heater side of the union. Let the other end of the hose go to a drain.
  • Page 32 This page is intentionally blank.

  • Page 33: Water Supplies

    In areas where the total dissolved solids (TDS) exceeds 600 mg/L it is possible the black anode, which is the standard anode fitted to the water heater, may be excessively active. To alleviate this, the black anode should be replaced with one colour coded blue.
  • Page 34 Where the saturation index exceeds +0.80, a low watts density heating unit should be used. Contact your nearest Rheem Service Department or Accredited Service Agent if a replacement heating unit is required. * Refer to the...

  • Page 35: Warranty

    Rheem Accredited Service Agent’s premises REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE RHEEM WATER HEATER WARRANTY, HOWEVER THE FOLLOWING EXCLUSIONS MAY CAUSE THE WATER HEATER WARRANTY TO BECOME VOID AND MAY INCUR A SERVICE CHARGE AND / OR COST OF PARTS.
  • Page 36 Receiver / Drier, Evaporator and associated pipe work. ** Refer to items 4 and 5 of warranty conditions. Rheem reserves the right to transfer fully functional components from the defective water heater to the replacement water heater if required. In addition to this warranty, the Trade Practices Act 1974 and similar laws in each state and territory provide the owner under certain circumstances with certain minimum statutory rights in relation to your Rheem water heater.

This manual is also suitable for:

RheemglasOptimaRheemplus

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