Manuals / Rheem / Household Appliance / Water Heater

Rheem 300 series Connections - Plumbing, Connection Sizes, Water Inlet And Outlet

Models: 300 series

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CONNECTIONS – PLUMBING

CONNECTIONS – PLUMBING

CONNECTION SIZES

•Hot water connection: RP¾/20.

•Cold water connection: RP¾/20.

•Relief valve connection: RP½/15.

•Gas inlet: RP½/15.

All plumbing work must be carried out by a qualified person and in accordance with the National Plumbing Standard AS/NZS 3500.4 and local authority requirements.

All gas work must be carried out by a qualified person and in accordance with the Australian Gas Installations Standard AS 5601 and local authority requirements.

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.

An isolation valve and non return valve must be installed on the cold water line to the water heater. Use the arrangement shown in the diagram. Refer also to “Hot Water Delivery” on page 15.

A disconnection union must always be provided at the cold water inlet and hot water outlet on the water heater to allow for disconnection of the water heater.

All water heaters have a plastic dip tube or fitting liner in the inlet and outlet fittings (see diagram). These must be in place for the water heater to function properly. Do not remove or damage them by using heat nearby. They will be pushed into the correct position as the fitting is screwed in.

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Rheem 300 series installation instructions Connections - Plumbing, Connection Sizes, Water Inlet And Outlet

Contents

Please leave this guide with the householder Owners Guide and Installation InstructionsGas Domestic Indoor Water Heater Notice to Victorian Customers from the Victorian Plumbing Industry Commissionthe Victorian Building Act PATENTSCONTENTS HOUSEHOLDER - We recommend you read pages 4 toTEMPERATURE ADJUSTMENT ABOUT YOUR WATER HEATERMODEL TYPE HOW HOT SHOULD THE WATER BE?ABOUT YOUR WATER HEATER SAFETYTO TURN OFF THE WATER HEATER TO TURN ON THE WATER HEATER DOES THE WATER QUALITY AFFECT THE WATER HEATER?HOW LONG WILL THE WATER HEATER LAST? ANODE PROTECTIONHOW YOUR WATER HEATER WORKS MAINS PRESSUREPIEZO IGNITION PILOT IGNITERREGULAR CARE lift until water flows from the drain line - lower gentlydrain line water heaterREGULAR CARE EXPANSION CONTROL VALVESERVICING SAVE A SERVICE CALL Temperature pressure relief valve runningThermostat setting NOT ENOUGH HOT WATER OR NO HOT WATERTEMPERATURE PRESSURE RELIEF VALVE RUNNING Normal Operation Continuous dribbleSteady flows for long period often at night NEVER replace the relief valve with one of a higher pressure ratingCAN’T LIGHT THE PILOT FLAME Is there a normal gas supply to the rest of the premises?WATER HEATER APPEARS TO BE LEAKING HIGH GAS BILLSINSTALLATION WATER HEATER LOCATIONINSTALLATION SAFE TRAYMAINS WATER SUPPLY TANK WATER SUPPLY HOT WATER DELIVERYINSTALLATION Two Temperature Zones Using a Temperature Limiting DeviceTemperature Limiting Device CIRCULATED HOT WATER FLOW AND RETURN SYSTEMINSTALLATION Circulated Hot Water Flow and Return System - Gas Water HeaterREDUCING HEAT LOSSES ANODE TYPESSADDLING - PIPE WORK INSTALLATIONDIMENSIONS AND TECHNICAL DATA INSTALLATIONDimensions ModelTYPICAL INSTALLATION - INDOOR LOCATION INSTALLATIONWATER INLET AND OUTLET CONNECTIONS - PLUMBINGCONNECTION SIZES GAS INLET PIPE SIZESRELIEF VALVE CONNECTIONS - PLUMBINGRELIEF VALVE DRAIN A copper drain line must be fitted to the relief valve to carry the discharge clear of the water heater. Connect the drain line to the relief valve using a disconnection union. 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 pipeCONNECTIONS - PLUMBING EXPANSION CONTROL VALVECOMMISSIONING TO FILL AND TURN ON THE WATER HEATERGAS INLET PRESSURE TO TURN OFF THE WATER HEATERLIGHTING THE WATER HEATER FOR YOUR SAFETY READ BEFORE LIGHTINGSAFETY INFORMATION Using the gas control light the water heater as follows 1. Stop, read the safety information on pageLIGHTING INSTRUCTIONS Note Failure to wait five 5 minutes may result in a fire or explosionLIGHTING THE WATER HEATER TEST THE WATER HEATER AFTER INSTALLATIONAIR SHUTTER 1. Turn the gas control knob to the CLOSE DOWN PROCEDURELIGHTING THE WATER HEATER DRAINING THE WATER HEATER This page is intentionally blank WATER SUPPLIES ANODESATURATION INDEX Refer to the cold water connection detail on pageWARRANTY EXCLUSIONS RHEEM MAINS PRESSURE WATER HEATER WARRANTY AUSTRALIA ONLYWARRANTY CONDITIONS WARRANTY RHEEM MAINS PRESSURE WATER HEATER WARRANTY AUSTRALIA ONLY