Rheem 631265N0 - Manuals

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...

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 remov...

ABOUT YOUR WATER HEATER 7 HOW DO I KNOW THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 16 to 23. 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, an...

8 MAINTENANCE REQUIREMENTS MAJOR SERVICE EVERY FIVE YEARS It is recommended a major service be conducted on the water heater every five (5) years. Warning : Servicing of a gas water heater must only be carried out by qualified personnel. Phone Rheem Service or their nearest Accredited Service Agent....

MAINTENANCE REQUIREMENTS 9 MINOR MAINTENANCE EVERY SIX MONTHS It is recommended minor maintenance be performed every six (6) months. Minor maintenance can be performed by a responsible officer. The minor maintenance includes:  Operate the easing lever on the temperature pressure relief valve. It is...

10 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 suppl ies. However, there are some known water chemistries which can have detrimen...

WATER SUPPLIES 11 ANODE INSPECTION AND REPLACEMENT The anodes installed in your water heater will slowly dissipate whilst protecting the cylinde r. The life of the cylinder may be extended by replacing the anodes. For water supplies which are either softened or desalinated, or where the water supply...

WATER SUPPLIES 12 SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY 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 ...

13 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 adjace...

SAVE A SERVICE CALL 14 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...

SAVE A SERVICE CALL 15 TEMPERATURE PRESSURE RELIEF VALVE RUNNING  Normal Operation It is normal and desirable that this valve allows a small quantity of water to escape during the heating cycle. However, if the discharge is deemed excessive (more than 2% of hot water used), there may be another pro...

16 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...

INSTALLATION 17 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...

INSTALLATION 18 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 150 mm of an external wall or alter...

INSTALLATION 19 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...

INSTALLATION 20 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 s...

INSTALLATION 21 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 ...

INSTALLATION 22 TYPICAL INSTALLATION – OUTDOOR LOCATION 631 275 model shown

INSTALLATION 24 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 ...

25 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/...

CONNECTIONS – PLUMBING 26 TEMPERATURE PRESSURE RELIEF VALVE The temperature pressure relief valve is shipped in the plastic bag attached to the side of the water heater. The temperature pressure relief valve must be fitted before the water heater is operated. Before fitting the relief valve, make su...

CONNECTIONS – PLUMBING 27 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...

28 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...

CONNECTIONS – ELECTRICAL 29 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. ...

CONNECTIONS – ELECTRICAL 30 POWER FLUE EXTERNAL CONTROLS – INTERMITTENT OPERATION multiple water heater installation 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 INTERL...

CONNECTIONS – ELECTRICAL 31 POWER FLUE EXTERNAL CONTROLS – 24 HOUR OPERATION Notes: 1. Power source for the water heater, fan and control circuit must be from the same circuit. 2. R1 monitors return signal. 3. R2 monitors alarm signal. 4. T1 to be set for 20-30 seconds. 5. Use SPO with round earth t...

CONNECTIONS – ELECTRICAL 32 BMS INTERFACE MODULE The water heater can be connected to a Building Management System (BMS) by a Rheem BMS Interface Module (P/N 299239). The module is an interface between an individual gas water heater and a Building Management System (BMS) to remotely provide real tim...

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...

MULTIPLE INSTALLATIONS 35 TYPICAL INSTALLATION – RHEEM HEAVY DUTY GAS WATER HEATERS INSTALLATION DIMENSIONS – RHEEM HEAVY DUTY GAS WATER HEATERS Installation Layout Minimum Dimensions Notes Model A B C D E * F * 1. Minimum recommended space between wall and back of water heater is 100 mm. 621 265 86...

MULTIPLE INSTALLATIONS 36 MANIFOLD ARRANGEMENT Hot Manifold Assembly Cold Manifold Assembly

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(...

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 ...

LIGHTING THE WATER HEATER 39 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 necessar...

40 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...

TEMPERATURE CONTROL 41 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...

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...

RHEEM HEAVY DUTY GAS MAINS PRESSURE WATER HEATER WARRANTY - AUSTRALIA ONLY Revision Date: 2016 November 122092M 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 compo...