Page 2 - PATENTS; in the name of Rheem Australia Pty Ltd.; TRADEMARKS; Registered trademark of Rheem Australia Pty Ltd.; Trademark of Rheem Australia Pty Ltd; with the householder or responsible officer.; DO NOT; leave this guide inside of the cover of the water
PATENTS This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd. 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 t...
Page 3 - CONTENTS; RESPONSIBLE OFFICER
3 CONTENTS RESPONSIBLE OFFICER – We recommend you read pages 4 to 16. The other pages are intended for the installer but may be of interest. About Your Water Heater ............................................................................................................ 4 Regular Care ..............
Page 4 - ABOUT YOUR WATER HEATER; WATER HEATER APPLICATION
4 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 Gas water heater model you have chosen is either a 265 litre or 275 litre indoo...
Page 5 - TEMPERATURE ADJUSTMENT
ABOUT YOUR WATER HEATER 5 TEMPERATURE ADJUSTMENT The water heater features an electronic adjustable thermostat. We recommend only a licensed tradesperson make any temperature adjustments. We advise the thermostat be adjusted to the lowest temperature setting that meets your needs, especially if ther...
Page 6 - flammable or combustible materials; PRECAUTIONS
ABOUT YOUR WATER HEATER 6 Do not store flammable or combustible materials near the water heater. Flammable liquids (such as petrol), newspapers and similar articles must be kept well away from the water heater and the draught diverter or flue terminal. Gases from some aerosol sprays, stain removers ...
Page 7 - HOW DO I KNOW THE WATER HEATER IS INSTALLED CORRECTLY?
ABOUT YOUR WATER HEATER 7 HOW DO I KNOW THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 17 to 24. The water heater must be installed: by a qualified person, and in accordance the installation instructions, and in compliance with Standards AS/NZS 3500.4, AS 5601 ...
Page 8 - REGULAR CARE; MINOR SIX MONTH MAINTENANCE; Warning; Inspect and flush the temperature pressure relief valve.
8 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 t...
Page 9 - MAJOR FIVE YEAR SERVICE; “Anode Inspection and Replacement”; It is very important you
REGULAR CARE 9 MAJOR FIVE YEAR SERVICE It is recommended a major five year service be conducted on the water heater. Warning : Servicing of a water heater must only be carried out by qualified personnel. Phone Rheem Service or their nearest Accredited Service Agent. Note: The five year service and r...
Page 10 - TEMPERATURE PRESSURE RELIEF VALVE; It is very important you raise and lower the lever; Failure to do this may result in the water heater cylinder
REGULAR CARE 10 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 approx...
Page 11 - WATER SUPPLIES; CHANGE OF WATER SUPPLY; TOTAL DISSOLVED SOLIDS & CONDUCTIVITY; (vitreous enamel lined water heater cylinder); ANODE SELECTION
11 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 detriment...
Page 12 - ANODE INSPECTION AND REPLACEMENT
WATER SUPPLIES 12 ANODE INSPECTION AND REPLACEMENT The anodes installed in your water heater will slowly dissipate whilst protecting the cylinder. The life of the cylinder may be extended by replacing the anodes. If the anodes are not replaced during a five year service (refer to “Major Five Year Se...
Page 13 - GAS STORAGE WATER HEATERS; SATURATION INDEX; SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY; water heater cylinder
WATER SUPPLIES 13 -1.0 no warr anty a pp li e s to a : te m p e ra tu re p re s s u re r e li e f v a lv e o r a w a te r h e a te r c y li n d e r u n le s s a n e x p a n s io n c o n tr o l v a lv e i s f it te d . SATURATION INDEX (SI) GAS STORAGE WATER HEATERS WITHIN WARRANTY SPECIFICATION SATU...
Page 14 - SAVE A SERVICE CALL; “Water Heater Not Operating”
14 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 adjacent...
Page 15 - DIAGNOSTIC FEATURES OF ELECTRONIC THERMOSTAT; Temperature sensor failure; BURNER WILL NOT LIGHT; “Water Heater Not Operating”; must; EXPANSION CONTROL VALVE RUNNING
SAVE A SERVICE CALL 15 DIAGNOSTIC FEATURES OF ELECTRONIC THERMOSTAT This water heater incorporates an electronic thermostat. In the event of a fault occurring with the thermostat, a 2-digit code will be displayed. Code Fault E1 Temperature sensor failure If the fault code is displayed, phone Rheem S...
Page 16 - WATER HEATER APPEARS TO BE LEAKING
SAVE A SERVICE CALL 16 WATER HEATER APPEARS TO BE LEAKING When the water heater is first lit or after a large usage of hot water, condensation may form on the burner of the water heater. This is quite normal, especially in winter months and will dry off as the water is heated. HIGHER THAN EXPECTED G...
Page 17 - INSTALLATION; THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.
17 INSTALLATION THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING. Check the water heater is suitable for the gas type available. (refer to the rating label on the water heater) Note: In Australia, natural gas models can be connected to SNG, however the hourly gas consumption may be reduced (typica...
Page 18 - diagrams on pages; Ventilation
INSTALLATION 18 The water heater must not be installed in an area with a corrosive atmosphere where chemicals are stored or where aerosol propellants are released. Remember the air may be safe to breath e, but when it goes through a flame, chemical changes take place which may attack the water heate...
Page 19 - OUTDOOR INSTALLATION; against or; At least 500 mm clear of any combustibles.; Relief valve setting; * Expansion control valve not supplied with water heater; TANK WATER SUPPLY
INSTALLATION 19 OUTDOOR INSTALLATION The water heater is to be installed at ground or floor level on a stable fireproof base as acceptable to local authorities. The water heater must also stand vertically upright with the back of the water heater against or within 25 mm of an external wall or altern...
Page 20 - HOT WATER DELIVERY; Two Temperature Zones Using a Temperature Limiting Device
INSTALLATION 20 HOT WATER DELIVERY This water heater can deliver water at temperatures which can cause scalding. It is necessary and we recommend that a temperature limiting device be fitted between the water heater and the hot water outlets in any ablution and public areas such as bathrooms, ensuit...
Page 21 - CIRCULATED HOT WATER FLOW AND RETURN SYSTEM; Temperature Limiting Device; Circulated Hot Water Flow and Return System
INSTALLATION 21 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 se...
Page 22 - REDUCING HEAT LOSSES
INSTALLATION 22 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 ...
Page 23 - TYPICAL INSTALLATION
INSTALLATION 23 TYPICAL INSTALLATION – OUTDOOR LOCATION 631 275 model shown
Page 25 - DIMENSIONS AND TECHNICAL DATA
INSTALLATION 25 DIMENSIONS AND TECHNICAL DATA Model No. 621265 631265 621275 631275 (Indoor) (Outdoor) (Indoor) (Outdoor) Storage capacity (litres) 265 265 275 275 Nominal Dimensions (mm) A 1795 1835 1895 1865 B 610 610 640 640 C 750 710 780 780 D 750 750 760 760 E 700 700 700 700 F 380 380 340 340 ...
Page 26 - CONNECTIONS – PLUMBING; CONNECTION SIZES
26 CONNECTIONS – PLUMBING All plumbing work must be carried out by a qualified person and in compliance with the Standard AS/NZS 3500.4 and all local codes and regulatory authority requirements. All gas work must be carried out by a qualified person and in compliance with the Standard AS 5601 or AS/...
Page 28 - GAS INLET
CONNECTIONS – PLUMBING 28 GAS INLET The gas connection is made to the left hand side of the gas control. The pipe work must be cleared of foreign matter before connection and purged before attempting to light the water heater. An isolation valve and disconnection union must be used to allow servicin...
Page 29 - CONNECTIONS – ELECTRICAL; and a satisfactory megger reading is obtained.; gas control operation; Method of Wiring for Remote Control or Time Switch
29 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. Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in potable wa...
Page 30 - THERMOSTAT SETTING
CONNECTIONS – ELECTRICAL 30 THERMOSTAT SETTING The thermostat is adjustable from 60°C to 82°C. For reasons of safety and economy, we advise the thermostat is set at the lowest temperature that will provide sufficient hot water. Discuss the thermostat setting requirements with a responsible officer. ...
Page 31 - POWER FLUE EXTERNAL CONTROLS; INTERLOCK TERMINAL; INTERLOCK TERMINAL; WIRING DIAGRAM - POWER FLUE CONNECTION; multiple water heater installation; Notes
CONNECTIONS – ELECTRICAL 31 POWER FLUE EXTERNAL CONTROLS – INTERMITTENT OPERATION WIRING DIAGRAM - POWER FLUE CONNECTION INTERMITTENT FAN OPERATION-MULTIPLE WATER HEATER Rheem Heavy Duty Gas Water Heaters-621 Series Raypak B Type Water Heaters-B0507 to B4224 INTERLOCK TERMINAL 621 SERIES RHEEM INTER...
Page 32 - WIRING DIAGRAM - 24 HR FAN OPERATION POWER FLUE CONNECTION
CONNECTIONS – ELECTRICAL 32 POWER FLUE EXTERNAL CONTROLS – 24 HOUR OPERATION WIRING DIAGRAM - 24 HR FAN OPERATION POWER FLUE CONNECTION MULTIPLE and SINGLE RHEEM 621 SERIES & RAYPAK TYPE A SERIES (197- 427) WATER HEATERS Notes: 1. Power source for the water heater, fan and control circuit must b...
Page 33 - MULTIPLE INSTALLATIONS; diagrams on page; must not; diagram on page
33 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 are required. The Equa-Flow principle will function with water heaters in line, around a corn...
Page 35 - RHEEM COMMERCIAL WATER HEATERS; RHEEM COMMERCIAL WATER HEATERS INSTALLATION DIMENSIONS
MULTIPLE INSTALLATIONS 35 TYPICAL INSTALLATION – RHEEM HEAVY DUTY GAS WATER HEATERS RHEEM COMMERCIAL WATER HEATERS TYPICAL INSTALLATION LEGEND INSTALLATION DIMENSIONS – RHEEM HEAVY DUTY GAS WATER HEATERS RHEEM COMMERCIAL WATER HEATERS INSTALLATION DIMENSIONS MODEL A B C D E* F* INSTALLATION LAYOUT M...
Page 36 - MANIFOLD ARRANGEMENT
MULTIPLE INSTALLATIONS 36 MANIFOLD ARRANGEMENT Hot Manifold Assembly Cold Manifold Assembly
Page 37 - COMMISSIONING; TO FILL AND TURN ON THE WATER HEATER; GAS INLET PRESSURE; IMPORTANT; TO TURN OFF THE WATER HEATER
37 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 showers) and supply cock(s)...
Page 38 - LIGHTING THE WATER HEATER; FOR YOUR SAFETY READ BEFORE LIGHTING; exactly; “Gas Inlet”; transport clip
38 LIGHTING THE WATER HEATER FOR YOUR SAFETY READ BEFORE LIGHTING Warning: This gas water heater is designed to operate reliably and safely as long as the lighting procedure is followed exactly . Make sure the water heater is filled with water and the water supply is on, otherwise serious damage to ...
Page 39 - DIAGNOSTIC FEATURES OF HOT SURFACE IGNITION CONTROL; reset button
LIGHTING THE WATER HEATER 39 DIAGNOSTIC FEATURES OF HOT SURFACE IGNITION CONTROL Warning: The removal of the access covers will expose 240 V wiring. They must only be removed by a qualified person only. The water heater incorporates an electronic control module. This is located inside the access cov...
Page 40 - BURNER PRESSURE ADJUSTMENT; DRAINING THE WATER HEATER; “To Turn Off The Water Heater”
LIGHTING THE WATER HEATER 40 BURNER PRESSURE ADJUSTMENT Switch off the electrical supply at the isolating switch. Attach a manometer to the test spigot at side of gas control. Switch on the electrical supply at the isolating switch. Check the gas pressure (refer to data plate). If necessary adjust t...
Page 41 - TEMPERATURE CONTROL; HOTTER WATER INCREASES THE RISK OF SCALD INJURY.; essential
41 TEMPERATURE CONTROL HOTTER WATER INCREASES THE RISK OF SCALD INJURY. This water heater can deliver water at temperatures which can cause scalding. It is necessary and we recommend that a temperature limiting device be fitted between the water heater and the hot water outlets in any ablution and p...
Page 42 - THERMOSTAT ADJUSTMENT
TEMPERATURE CONTROL 42 THERMOSTAT ADJUSTMENT The water heater is supplied with the thermostat preset at 70°C. It will be necessary to adjust the thermostat temperature setting if another temperature is required. When adjusting the thermostat temperature it is necessary to alter the thermostat offset...
Page 43 - THE RHEEM WARRANTY – GENERAL; (not for service; TERMS OF THE RHEEM WARRANTY AND EXCLUSIONS TO IT; Misuse or abnormal use of the water heater.
43 RHEEM HEAVY DUTY GAS MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY GAS WATER HEATER 621, 631 SERIES 265, 275 MODELS 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 t...
Page 44 - Revision Date: 2013 August; ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY; Australian Consumer Law
RHEEM HEAVY DUTY GAS MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY Revision Date: 2013 August 122092J 44 GAS WATER HEATER 621, 631 SERIES 265, 275 MODELS 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.1 Rheem will repair or replace a faulty compone...