Plumbers’ Handbook - Rheem Hot Water
2017Version 1.0Plumbers’HandbookScan code fordetails & installationinstructions
To receive updates of theRheem Plumbers’ Handbookregister atrheem.com.au/trade-promotionsHow to Download a QR Code Reader to yourMobile DeviceUÊ Open your mobile app store (App Store,Google Play, Windows Marketplace, etc.)UÊ Search for QR code reader. Check out the listof QR code readers for mobile phones to findthe right one for you.UÊ Simply download the QR code reader to yourphone, open it and you are ready to scan thecodes that appear in the Rheem Plumbers’Handbook .2
ContentsInstallation - ChecklistGeneral4Electric Water Heaters/Heat Pump5Gas Water Heaters6Solar Water Heaters7Hot Water Recirculation Systems8Anode Selection & Water Supplies9Water Connections11Pipework and Pipe Sizing14Specific Applications15Electric Storage ModelsGas Storage ModelsGas Continuous Flow Models & AccessoriesSolar ModelsHeat Pump Models174565911113
Installation ChecklistGeneralWater Heater positionUÊ Read the Installation Instructions, to familiarise yourself withthe unit – the water heater must be installed, operated andmaintained in accordance with the Owner’s Guide & InstallationInstructions and local state regulations.UÊ Water heaters must be installed and serviced by a qualifiedperson.UÊ Keep the tank vertical at all times during transport andinstallation. Not applicable to solar thermosiphon tanks orStainless Steel water heaters.UÊ Locate close to point of use or the most frequently used hotwater outlet: Closer to the most often used tap will help reduce runningcosts. Minimising the length of hot water pipework reduces the timetaken for hot water to reach the tap, heat loss and waterwastage.UÊ Leave headroom of approximately one water heater height toallow anode inspection and replacement (storage water heatersand hot water storage tanks). Not applicable to Stainless Steelwater heaters.UÊ Ensure controls can be easily operated.UÊ Ensure serviceable parts such as TPR (temperature pressurerelief) valve are accessible.UÊ Ensure rating label/data plate can be easily read.UÊ Ensure service access covers are easily removable.For OUTDOOR storage water heaters:UÊ Must be installed on a level plinth 50mm above surroundingground. Gas storage units must be installed up against a wall orrigid vertical support via the brackets provided.UÊ DO NOT place in direct contact with concrete that is less than2 months old and not fully cured as this may attack the metalcoating of the jacket. A moisture barrier between the twosurfaces should be used in this instance.4
Installation ChecklistElectric Water Heaters/Heat PumpLocationUÊ Water heaters installed in roof spaces – local authorities haveregulations regarding such installations, so check with your localauthorities.UÊ Ensure the front covers, thermostats and elements can beremoved for service.Installation Standards & SafetyUÊ The water heater is supplied with a thermostat and a overtemperature cut-out and a combination temperature pressurerelief valve (TPR). These devices MUST NOT be tampered with orremoved, except for authorised service. The water heater mustnot be operated unless each of these devices is fitted and inworking order.UÊ Operation of the over-temperature cut-out indicates a possiblydangerous situation. Only reset the control after the cause of itsoperation has been determined and any fault corrected.The water heater must be installedUÊ By a qualified personUÊ In accordance with the Installation Instructions and in compliancewith Standards AS/NZS 3500.4, AS/NZS 3000 and all localcodes and regulations.Safe TrayUÊ Where property damage could occur in the event of a leak, thewater heater must be installed in a safe trayUÊ Safe tray construction, installation and draining must comply withAS/NZS 3500.4 and local codes/regulations; check all relevantrequirements before installing.5
Installation ChecklistGas Water HeatersUÊ A flue of up to 150mm internal diameter must be 25mm clear ofcombustible materials such as timber walls and cupboards.UÊ A flue exceeding 150mm internal diameter requires clearancesof 75mm from unprotected surfaces and 50mm from protectedsurfaces.UÊ Outdoor gas water heaters (all types) must have minimumclearances from the flue terminal to certain building features suchas openable windows/doors and to fences/walls. Refer toAS/NZS 5601.1 for these clearances.UÊ Leave clearance to allow removal of the burner assembly ifrequired.UÊ Leave adequate clearance on all sides for ventilation andsafety and ensure flue terminal and air inlet are free from anyobstruction (Gas storage and Continuous Flow).UÊ Ensure the combustion air supply is not likely to be contaminatedwith substances that are corrosive or would become corrosiveafter passing through a flame.UÊ Outdoor storage models must be installed against a wall or rigidvertical support.UÊ Outdoor models must have free and balanced airflow at both theair intake and flue outlet.UÊ Indoor water heaters require correct ventilation - checkAS/NZS 5601.1 for requirementsGas Continuous FlowUÊ The high gas consumption of these water heaters oftennecessitates larger diameter gas supply pipe. Undersized pipewill affect performance and hot water capacity. Size the gassupply pipe using the MJ rating marked on the appliance.UÊ Large capacity (27L/minute) Continuous Flow water heaters may,due to their gas consumption, require greater clearance distancefrom doors and windows – check AS/NZS 5601.1 requirements.6
Installation ChecklistSolar Water HeatersUÊ The correct type of solar water heater is to be selected for thearea. Consideration must be given to whether freeze protection isrequired and to the chemistry of the water to be supplied to thewater heater.UÊ For a split system, consideration must also be given to the positionof the collectors in relation to the solar storage tank. There arelimitations on both the maximum length of the solar hot and solarcold pipes and the maximum height between the storage tank andthe collectors. Refer to the installation instructions supplied with theproduct.UÊ The collectors must be installed in a shade free position. Thesurrounds should be checked for higher buildings or trees whichmay cause shade at other times of the year and for small treeswhich may grow and shade collectors in the future.UÊ The installation must comply with the requirements of eitherAS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3 (for a Class 1aor Class 10 building) as applicable under the Plumbing Code ofAustralia, and all local codes and regulatory authority requirements.UÊ The installer must ensure the structural integrity of the building isnot compromised by the solar water heater installation and theroof structure is suitable to carry the full weight of the collectorsand frame (if one is installed). If in any doubt of the construction orthe condition of the roof, the roof should be suitably strengthened.Consult a structural engineer.UÊ Maximum performance is achieved with an orientation facingtrue north. Always check for true north using a compass or othersuitable device.UÊ The performance of a system reduces as the orientation of thecollectors moves away from true north, resulting in the need forincreased boosting to supply the same hot water load.UÊ Where it is not possible or practical to install collectors facing north,they may be oriented up to 90 from north (subject to installationcode requirements). It may be desirable to install an additionalcollector or higher performance collectors to help make up for thereduction in solar performance. Each option should be discussedwith the system owner. If neither of these options is possible oracceptable to the system owner, then the system owner needs tobe made aware of, understand and accept that increased boostingmay be required to meet their hot water requirements.UÊ Frames are available from Rheem to raise the inclination of thecollectors, and for high wind (cyclone) areas.7
Installation ChecklistHot Water Recirculation SystemsWhen water heaters are installed on a hot water flow and returnrecirculation system, the following should be included: A suitable pump correctly aligned, oriented and weatherprotected with a check valve and isolation valves. To reduce energy costs a timer to activate circulation inperiods of regular demand. Suitable pipe insulation to minimise heat loss. A Temperature Limiting Device positioned on individualbranch lines to ablution areas, not in the main flow line to thebuilding. Where multiple water heater are manifolded, correctEqua-flow principles must be followed.8
Anode Selection & Water SuppliesUÊ Every Rheem water heater is manufactured to suit the waterconditions of most public reticulated water supplies, but somewater chemistries can have detrimental effects on the waterheater’s operation and life expectancy.UÊ Ask the local Water Supply Authority for information on the waterchemistry, which you can check against the Rheem guidelinesbelow.UÊ A water heater cylinder or heat exchanger can be affectedby the chemistry of the water supply. The cylinder of the waterheater is only covered by Rheem warranty when the totaldissolved solids (TDS) in the water supply is below 2500mg/Land the correct colour anode is used. Using the wrong colouredanode may also shorten the life of the cylinder.UÊ Use the following table to select the correct colour anode to befitted:Total Dissolved SolidsAnode colour code0 - 40 mg/LGreen40 - 150 mg/LGreen or Black150 - 400 mg/LBlack400 - 600 mg/LBlack or Blue600 - 2500 mg/LBlue2500 mg/L Blue (no cylinder warranty)UÊ The anode will slowly dissipate over time while protecting thecylinder. The life of the cylinder may be extended by replacing theanode.UÊ If the anode is not replaced at the 5 year service, the maximumtime when it should be replaced is not more than 8-10 years(depending upon the model – refer to the Owner’s Guide &Installation Instructions).UÊ For water supplies that are softened, desalinated or where thewater supply may alternate between tank water and reticulatedpublic supply or another supply, it is recommended the anodebe replaced within 5 years of installation and every 5 yearsthereafter.Saturation Index is a measure of the water’s corrosive orscaling properties. A corrosive water supply can attack coppercomponents.Where the saturation index is less than -1.0:UÊ Water is very corrosiveUÊ A corrosion resistant element must be used for the Rheemwarranty to cover the element9
Anode Selection & Water Supplies - cont’dIn a scaling water supply calcium carbonate is deposited onto anyhot metallic surface.Where the saturation index exceeds 0.4:UÊ Water is very scalingUÊ An expansion control valve must be fitted on the cold water lineafter the non-return valve for the Rheem warranty to cover thecylinder and TPR valveWhere the saturation index exceeds 0.8:UÊ Rheem warranty does not cover a standard watts densityelementUÊ A low watts density element must be used for the Rheemwarranty to cover the element-1.0very corrosiveWITHIN WARRANTYSPECIFICATION0 0.4SATURATION INDEX(calculated @ 80 C water temperature)scalingcorrosiveno warranty applies to a:- standard watts density element- direct (open circuit) solar collector- heat pump heat exchanger- stainless steel cylinder- continuous flow copper heat exchangerno warranty applies to a:temperature pressure relief valve or awater heater cylinder unless anexpansion control valve is fitted.no warranty applies to a:- standard watts density element- direct (open circuit) solar collector- heat pump heat exchanger- stainless steel cylinder- continuous flow copper heat exchangerSATURATION INDEX (SI)WATER HEATERS 0.8very scalingUÊ Stainless Steel cylinders are not suitable for installation insome areas, where water chemistry is such that the cylindercan be affected. Installation in these areas may void the cylinderwarranty.UÊ Before installing, check the Rheem website for suitableinstallation areas: www.rheem.com.au/stellar10
Water ConnectionsCold Water Connection191025The following may be required on the cold water inlet pipework(see figure below for order of installation)Isolating ValveUÊ Also known as a stop cockUÊ Required for service andmaintenanceNon-Return ValveUÊ Also known as a check valveUÊ Soft seat type preferredUÊ Located between stop cock andwater heaterUÊ Do not fit to inlet of continuous flowwater heaterDuo ValveUÊ Combination isolating and nonreturn valveUÊ Can be used instead of twoseparate valvesPressure Limiting orUÊ Required if supply pressure isPressure Reducinglikely to exceed 80% of relief valveValvesetting.UÊ Recommended use on supply tothe entire building to ensure samepressure of cold and hot waterExpansion Control Valve UÊ Required for all storage waterheaters in QLD, WA, SA and anyother area where the water supplyhas a saturation indexexceeding 0.4UÊ Last valve before water heaterDisconnecting UnionUÊ Final fitting on the cold waterplumbing.Pressure LimitingValveExpansion ControlValveTo UnionConnectorStopcockNon-ReturnValve11
Water connections - cont’dHot Water Connection191025The following are required for the hot water outletTemperature LimitingUÊ Required for bathrooms, basins,Device/Temperingnot required for kitchen, laundryValve/ Thermostaticmixing valvePipe InsulationUÊ The pipe work must be insulated inaccordance with AS/NZS 3500.4UÊ All piping with circulating water is tobe insulatedDisconnecting unionUÊ First fitting after the water heater.Note: Vacuum break valves are not normally necessary.Note: Heat traps are only required on Rheem Stainless Steel topoutlet water heaters. (Dip tube on other Rheem models acts asan integral heat trap).In Western Australia heat traps are required on all electricstorage water heaters.Control of Delivery TemperatureUÊ AS/NZS 3500.4 stipulates a maximum of up to 50oC hot watertemperature to ablution areas (bathrooms). This may be reducedto 45oC depending on the building’s use. This is mandatoryfor all new installations. The above requirement is mandatoryin some states for replacement installation also. Check localregulatory requirements in your area for new and replacementinstallations.This is achievable via: For 50 C applications – tempering valve, thermostatic mixingvalve or an AS 3498 compliant 50OC limited water heatermodeleg: Rheem Gas Continuous Flow model, RheemPlus HeatPump, RheemPlus Gas or Electric storage For 45 C applications – thermostatic mixing valve12
Water ConnectionsTPR and ECV Drain Line191025The relief valve must be fitted with a drain pipe, with the followingrequirements:UÊ The minimum diameter of the pipe is DN15 on 15 mm valves,and DN20 on 20 mm valves.UÊ The drain pipe must be of copper.UÊ The drain pipe must be of minimum possible length and have acontinuous fall to its outlet.UÊ Where the distance from the valve to the final point of dischargeis greater than 9 m, the valve drain line must discharge into atundish that is drained in accordance with AS/NZS 3500.4UÊ Relief Valve drains must terminate in a position that is visible, willnot cause nuisance or damage and will not cause injury. Localregulations may require that the discharge from relief valvesterminate to a drain.UÊ In frost prone areas additional requirements apply, refer toAS/NZS 3500.413
Pipework and Pipe SizingPipe materialAll pipe material used must comply with the requirements ofAS/NZS 3500.4.Plastic/synthetic pipe:UÊ Cannot be used for the last metre into and first metre out of thewater heater – these sections must be copper.UÊ Must be rated to the same maximum working pressure andtemperature the water heater is capable of supplying.UÊ MUST NOT be used for solar flow and return installations.Pipe SizingCalculating the correct pipe diameter for the installation involves 3steps:1. Estimate the peak required flow rate along the length of the pipe.Flow Rate (Hot Water)ApplicationDomestic BathDomestic ShowerHand BasinKitchen Sink and Laundry TubWashing Machines and 20.2Note: if the home is fitted with water saving fixtures the requiredflow rate will be reduced.2. Calculate the pressure gradient along the pipe.3. Refer to the pipe supplier’s product handbook to determine therecommended pipe diameterFor most domestic installations, it is acceptable to base pipe sizingfor hot water reticulation on known average requirements.14
Specific ApplicationsUÊ Rheem water heaters (other than Commercial specific modelssuch as Commpak or Heavy Duty models) are designed for usein a single family domestic dwelling for the purpose of heatingpotable water. Use in any other application may shorten the lifeof the water heater.UÊ If an uninterrupted hot water supply is necessary for theapplication or business, there should be back-up redundancybuilt into the system design, to ensure supply continuity in theevent of the water heater becoming inoperable. We recommendyou provide advice to the system owner regarding their needsand building back-up redundancy into the hot water supplysystem.15
Electric StorageWater connectionsScan code fordetails & installationinstructions17
18
Rheem Electric NFeatures & BenefitsUÊ Small diameter - 400mmUÊ Fast, easy like-for-like replacementUÊ Dual handed connectionsUÊ Plug & lead indoor models 2.4kW onlyLINDEYY7YEARTWARCUÊ 7 year cylinder warranty1RRAN40043643010626O14260MODELHot Water Delivery (L)kW RatingRelief Valve Setting (kPa)Expansion Control Valve (kPa)Max Water Supply Pressure:with ECV (kPa)without ECV (kPa)Water ConnectionsApprox. Weight (Empty) kg64O26O64O191025191025/P252.4, 3.614001200Scan code fordetails & installationinstructions9601120RP3/41919
Rheem Electric Compact Features & BenefitsUÊ The smallest Rheem electric waterheaterUÊ Small diameter - 385mmUÊ Plug & lead indoor models 2.4kW onlyLINDEYYYEARUÊ 7 year cylinder warranty1TWA7RCUÊ Fast, easy like-for-like replacementRRAN3853904201301166026O65OMODELHot Water Delivery (L)kW RatingRelief Valve Setting (kPa)Expansion Control Valve (kPa)Max Water Supply Pressure:with ECV (kPa)without ECV (kPa)Water ConnectionsApprox. Weight (Empty) kg20111025111025/P182.4, 3.6140012009601120RP 3/418Scan code fordetails & installationinstructions
Rheem Electric Compact 471910451Indoor/OutdoorPEOPLEINSTALLATIONFeatures & BenefitsUÊ The most compact available in theover-40L capacity rangeUÊ Smallest Diameter – 400mmUÊ Just 670mm HIGH (including anodecap)UÊ 47L delivery*LINDEYYYEARTWA7RCUÊ Available in 3.6kW rating onlyRRANUÊ Recessed plug fittingsUÊ Dual handed – easier to installUÊ 7 year cylinder warranty1HOT 2626OO6059O59O*Rated Hot Water Delivery (L) is 40L in accordance with AS/NZS4692.1.Actual delivery is 47L when tested to AS/NZS4692.1.MODELHot Water Delivery (L)kW RatingRelief Valve Setting (kPa)Expansion Control Valve (kPa)Max Water Supply Pressure:with ECV (kPa)without ECV (kPa)Water ConnectionsApprox. Weight (Empty) kg191045473.614001200Scan code fordetails & installationinstructions9601120RP 3/42521
Rheem Electric NFeatures & BenefitsUÊ Small diameter - 400mmUÊ Designed for restricted spaceinstallationsUÊ Dual handed connectionsUÊ Plug & lead models 2.4kW onlyLINDEYY7YEARTWARCUÊ Recessed plug fittingsRRANUÊ Safe for wall mounting - Wallmounting bracket 299120UÊ 7 year cylinder DEL191050191050/PHot Water Delivery (L)kW RatingRelief Valve Setting (kPa)Expansion Control Valve (kPa)Max Water Supply Pressure:with ECV (kPa)without ECV (kPa)Water ConnectionsApprox. Weight (Empty) kg501.8, 2.4, 3.614001200229601120RP 3/42626o59oScan code fordetails & installationinstructions
Rheem Electric es & BenefitsUÊ Small diameter - 480mmUÊ Fast, easy like-for-like replacementUÊ De
Installation - Checklist General 4 Electric Water Heaters/Heat Pump 5 Gas Water Heaters 6 Solar Water Heaters 7 Hot Water Recirculation Systems 8 Anode Selection & Water Supplies 9 Water Connections 11 Pipework and Pipe Sizing 14 Specific Applications 15 Electric Storage Models 17 Gas Storage Models 45 Gas Continuous Flow Models & Accessories .
rheem-ecosystem/rheem. case, we use a real application to show the bene ts of cross-platform data processing using Rheem. (Section 2) (2) We present the data and processing model of Rheem and show how it shields users from the intricacies of the un-derlying platforms. Rheem provides exible operator map-
2.9 If the pool or spa heater is not sized in accordance with the guidelines in Raypak's pool & spa heater literature, any resultant fault will not be covered by Rheem's warranty. 2.10 The Rheem warranty is not applicable if the installation of the pool or spa heater is carried out by an installer not approved by Rheem or a person
Congratulations for choosing a Rheem commercial heat pump water heater. The Rheem air sourced heat pump water heater is designed for outdoor or indoor installation depending on the model. HOW HOT SHOULD THE WATER BE? The heat pump (compressor, evaporator and fan) will operate until a water temperature of approximately 60 C is reached.
The RP15 is our 15 SEER heat pump and is part of the Rheem . heat pump product line that extends from 14 to 20 SEER. This. highly featured and reliable heat pump is designed for years of reliable, efficient operation when matched with Rheem indoor aluminum evaporator coils and furnaces or air handler units with aluminum evaporators.
Introduction to RP20 Heat Pump The RP20 is our EcoNet Enabled, Inverter Driven Prestige Series Variable Speed Heat Pump and is part of the Rheem Heat Pump product line that extends from 13 to 20 SEER. This highly featured and reliable heat pump is designed for years of dependable, efficient operation when matched with Rheem
The RP14 is our 14 SEER piston heat pump and is part of the Rheem heat pump product line that extends from 14 to 20 SEER. This highly featured and reliable heat pump is designed for years of reliable, efficient operation when matched with Rheem indoor aluminum evaporator coils and furnaces or air handler units with aluminum evaporators.
Rheem Classic Series Upflow/Horizontal Gas Furnaces FORM NO. G11-518 RGPN- Series 80% A.F.U.E.† Models with Input Rates from 50-150 kBTU (U.S. & Canadian Models) he Rheem Classic Series line of upflow/horizontal gas ooms, closets, alcoves, or attics. file 34 inch [864 mm] height, the upflow model can also be used to satisfy most appli-
ACCOUNTING AND REPORTING 13th Edition FINANCIAL ACCOUNTING AND REPORTING ELLIOTT AND ELLIOTT Financial Accounting & Reporting is the most up-to-date text on the market. Now fully updated in its 13th edition, it includes extensive coverage of International Accounting Standards (IASs) and International Financial Reporting Standards (IFRSs). This market-leading text offers students a clear, well .
