Rheem 31202519V Owner's Manual And Installation Instructions
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Rheem 31202519V Owner's Manual And Installation Instructions

Electric domestic water heater
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Owner's Guide
and
Installation Instructions
Electric Domestic
Water Heater
Model 31202519V
This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.

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Summary of Contents for Rheem 31202519V

  • Page 1 Owner’s Guide Installation Instructions Electric Domestic Water Heater Model 31202519V This water heater must be installed and serviced by a qualified person. Please leave this guide with the householder.
  • Page 2 PATENTS This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd or Rheem New Zealand Limited. TRADEMARKS ® Registered trademark of Rheem Australia Pty Ltd or Rheem New Zealand Limited.

  • Page 3: Table Of Contents

    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.

  • Page 4: Warranty

    1. THE RHEEM WARRANTY – GENERAL This warranty is given in respect of sales in New Zealand by Rheem New Zealand Limited of 475 Rosebank Road Avondale Auckland 1026. Rheem offer a trained and qualified national service network who will repair or replace components at the address of the unit subject to the terms of the Rheem warranty in New Zealand –...
  • Page 5 Fair wear and tear from adverse conditions (for example, corrosion). Cosmetic defects. If you require a call out and we find that the fault is not covered by the Rheem warranty, you are responsible for Rheem Service Centre call out costs. If you wish to have the relevant component repaired or replaced by Rheem that service will be at your cost.
  • Page 6 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT Rheem will repair or replace a faulty component of your unit if it fails to operate in accordance with its specifications as follows: The period from the...
  • Page 7 (from the rating label on the unit). b) A Rheem Service Centre will arrange for the unit to be tested and assessed on-site. c) If Rheem determines that you have a valid warranty claim, Rheem will repair or replace the unit in accordance with this warranty.

  • Page 8: Safety, Warnings, Installation Notes

    • If the electrical conduit to the water heater is damaged, it must be replaced by a qualified person in order to avoid a hazard. Phone your Rheem Service Centre to arrange for an inspection. •...
  • Page 9 SAFETY, WARNINGS, INSTALLATION NOTES • Servicing of a water heater must only be carried out by qualified personnel. Phone your Rheem Service Centre. • Only a person qualified to install or service a water heater can drain the water heater, if this is required.
  • Page 10 If water does not flow freely from the drain line when the lever is lifted, then the water heater must be checked. Phone your Rheem Service Centre to arrange for an inspection. The temperature pressure relief valve should be replaced at intervals not exceeding five (5) years and the expansion control valve should be checked for performance or replaced at intervals not exceeding five (5) years.
  • Page 11 SAFETY, WARNINGS, INSTALLATION NOTES • in compliance with the Australian / New Zealand Wiring Rules AS/NZS 3000, ▪ Isolation switches must be installed in the electrical circuit to the water heater in accordance with the Wiring Rules, so the water heater can be switched off.

  • Page 12: About Your Water Heater

    Its use in an application other than this may shorten its life. MODEL TYPE ® The Rheem 312025 model water heater you have chosen has a single heating unit and is suitable for connection to a continuous power supply.
  • Page 13 Rheem 312 series water heater is installed. This will keep the water temperature below 55°C at the bathroom and ensuite. The risk of scald injury will be reduced and still allow hotter water to the kitchen and laundry.
  • Page 14 ABOUT YOUR WATER HEATER 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: •...

  • Page 15: Maintenance Requirements

    Note: The major 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. Only genuine replacement parts should be used on this water heater.
  • Page 16 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 “Relief Valves”...

  • Page 17: Water Supplies

    The vitreous enamel lined cylinder of the 312025 water heater is supplied with a black colour coded anode and is only covered by the Rheem warranty when the total dissolved solids (TDS) content in the water is from 40 mg/L to 600 mg/L.
  • Page 18 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. For water supplies which are either softened or desalinated, or where the water supply may alternate between a water tank and a reticulated public supply or another supply, or where there is a variable supply (e.g.
  • Page 19 Where the saturation index exceeds +0.40, the water is very scaling. An expansion control valve must be fitted on the cold water line after the non-return valve to protect and for the Rheem warranty to apply to the temperature pressure relief valve and water heater cylinder.
  • Page 20 The water heater and its components are not suitable for certain water chemistries. Those chemistries are listed below. If the water heater is connected at any time to a water supply with the following water chemistry, the Rheem warranty will not cover any resultant faults on the components listed below:...

  • Page 21: Save A Service Call

    Warning: Hotter water increases the risk of scald injury. • 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.
  • Page 22 Heavy flows of hot water from the temperature pressure relief valve until water heater is cold - then stops until water reheats The water heater must be switched off at the switchboard. Phone your Rheem Service Centre to arrange for an inspection.
  • Page 23 It is important you are aware of this tariff, i.e. Domestic / Continuous or Time of Use. IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, PHONE YOUR RHEEM SERVICE CENTRE.

  • Page 24: Installation

    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 • to conform to Clauses G12 and H1 of the New Zealand Building Code, and •...
  • Page 25 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, or in a suitable cupboard.
  • Page 26 It is necessary and we recommend that a temperature limiting device be fitted between a Rheem 312025 model water heater and the fixtures and appliances used primarily for personal hygiene such as in a bathroom, ensuite, public amenities or other ablution areas, to reduce the risk of scalding.
  • Page 27 CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Rheem 312025 model can be installed as a secondary water heater in the circulated flow and return system and supplied from an Off-Peak or Extended Off-Peak electric, or a heat pump or solar water heater. The flow and return lines connect to the secondary water heater, not the Off-Peak or Extended Off-Peak electric, heat pump or solar water heater.
  • Page 28 INSTALLATION 312025 Circulated Hot Water Flow and Return System Off-Peak Electric, Heat Pump or Solar Water Heater PUSH THROUGH (FREE OUTLET) INSTALLATION It can be advantageous to plumb a 312025 model water heater as a Push Through water heater in some cases. These installations can supply a single point non-tempered...
  • Page 29 The vitreous enamel lined cylinder of the 312025 water heater is supplied with a black colour coded anode and is only covered by the Rheem warranty when the total dissolved solids (TDS) content in the water is from 40 mg/L to 600 mg/L.
  • Page 30 INSTALLATION TYPICAL INSTALLATION – INDOOR LOCATION TYPICAL INSTALLATION – OUTDOOR LOCATION...
  • Page 31 INSTALLATION DIMENSIONS AND TECHNICAL DATA – RHEEM 312025 MODEL Storage TPR Valve Approx. Weight Model Capacity Setting empty 31202519V 25 litres 1000 kPa 16 kg This model is suitable for either indoor or outdoor installation. The 312025 model has left hand (LH) water and TPR valve connections.

  • Page 32: Connections - Plumbing

    Rp 1/2 WATER INLET AND OUTLET The water connections can be made to either side. The Rheem 312025 model water heater has cold and hot water connections on the left hand side. All pipe work must be cleared of foreign matter before connection and purged before attempting to operate the water heater.
  • Page 33 CONNECTIONS – PLUMBING This water heater is intended to be permanently connected to the water mains and not connected by a hose-set. A braided flexible hose or semi-flexible connector may be used for connection to the water heater, where permitted by AS/NZS 3500.4.
  • Page 34 CONNECTIONS – PLUMBING • The valve must be insulated with closed cell polymer insulation or similar (minimum thickness 9 mm) and the insulation installed so as not to impede the operation of the valve. insulation must weatherproof and UV resistant if exposed.
  • Page 35 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.

  • Page 36: Connections - Electrical

    70°C under normal operation. THERMOSTAT SETTING The thermostat on a Rheem 312025 model water heater is tradesperson adjustable from 60°C to 70°C. The factory setting of the thermostat is 70°C. The thermostat is adjusted by turning the adjuster anticlockwise to decrease the temperature setting and clockwise to increase the temperature setting.
  • Page 37 CONNECTIONS – ELECTRICAL WIRING DIAGRAM SINGLE ELEMENT ELECTRIC WATER HEATERS Electrical Circuit for Single Element Models – Robertshaw “ST” Thermostat...

  • Page 38: Commissioning

    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). •...

  • Page 39: Draining The Water Heater

    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: • “To Turn Off The Water Heater” Turn off the water heater (refer to page 38).
  • Page 40 Revision Date: 2021 July 122283C...

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