Table of Contents
Related Manuals for Rheem W27
Summary of Contents for Rheem W27
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Page 1: Installation Instructions
Owner’s Guide Installation Instructions Rheem 27 Water Star Continuous Flow Gas Water Heater 874 series - W27 model This water heater must be installed and serviced by a qualified person. Please leave this guide with the householder. - Page 2 This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd or Paloma Co., Ltd. Rheem Australia Pty Ltd is the supplier of the Rheem range of continuous flow gas water heaters, manufactured by Paloma Co., Ltd., a world leader in water heater technology and manufacture.
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Page 3: Table Of Contents
CONTENTS HOUSEHOLDER - 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 ..........................10 Water Supplies ........................... 12 Save A Service Call ........................14 Installation –... -
Page 4: About Your Water Heater
Its use in an application other than this may shorten its life. MODEL TYPE ® The Rheem 27 Water Star continuous flow gas water heater model you have chosen is for outdoor installation only. This model has an extended manufacturer‟s warranty (refer to the Rheem warranty page 35). - Page 5 Note: The preset outlet temperature setting of this water heater cannot be adjusted by the householder. The setting can only be adjusted by the installer, Rheem Service or their nearest Accredited Service Agent. Warning: Temperature controllers must not be fitted to this water heater (874 series) because water at a temperature much higher than the controller setting can be delivered.
- Page 6 Warning: For continued safety of this water heater it must be installed, operated and maintained in accordance with the Owner‟s Guide and Installation Instructions. The Rheem warranty may not cover faults if relief valves or other safety devices are tampered with or if the installation is not in accordance with these instructions.
- Page 7 Damage caused by freezing due to the unavailability of power at the water heater is not covered “Terms of the Rheem Warranty” by the Rheem warranty (refer to on page 35). If it is necessary to switch the power off to the water heater and there is a risk of freezing, then it is “Draining the Water Heater”...
- Page 8 ABOUT YOUR WATER HEATER DRAINING THE WATER HEATER Switch off the electrical supply at the power outlet to the water heater. Close the gas isolation valve at the inlet to the water heater. Leave the cold water isolation valve open at the inlet to the water heater. Open a hot tap (preferably the shower outlet) for 20 seconds, to purge any hot water left in the water heater.
- Page 9 ABOUT YOUR WATER HEATER DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER? The water heater is suitable for most public water supplies, however some water chemistries may have “Water Supplies” detrimental effects on the water heater, its components and fittings. Refer to on page 12.
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Page 10: Regular Care
Service or their nearest Accredited Service Agent. Note: The five year service and routine replacement of any components, if required, 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 11 If water does not flow freely from the drain line when the lever is lifted, then the water heater must be checked. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection. The temperature pressure relief valve should be replaced at intervals not exceeding 5 years, or more “Water Supplies”...
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Page 12: Water Supplies
Where the saturation index exceeds +0.40, the water is very scaling. An expansion control valve must be fitted on the cold water line prior to the water heater to protect and for the Rheem warranty to apply to the temperature pressure relief valve and copper cylinder. - Page 13 Rheem warranty to apply. SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY The water heater and its components are not suitable for certain water chemistries.
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Page 14: Save A Service Call
Do you have the correct size water heater for your requirements? The sizing guide in the sales literature and on the Rheem website (www.rheem.com.au) suggests average sizes that may be needed. FAN CONTINUES TO RUN AFTER WATER HEATER OPERATION STOPS It is the normal operation of the water heater for the fan to continue running after heating of the water is finished. - Page 15 Wait 5 minutes, then switch on the electrical supply to the water heater and open a hot tap. If the error code persists, take note of the numerical code and turn off the hot tap. Phone Rheem Service or their nearest Accredited Service Agent to arrange for inspection.
- Page 16 Has your water heating tariff rate been increased by your gas retailer since your previous account? IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, PHONE RHEEM SERVICE OR THEIR NEAREST ACCREDITED SERVICE AGENT.
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Page 17: Installation - Water Heater
INSTALLATION – WATER HEATER THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY. 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) INSTALLATION STANDARDS The water heater must be installed:... - Page 18 INSTALLATION – WATER HEATER 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 breathe, but when it goes through a flame, chemical changes take place which may attack the water heater.
- Page 19 Damage to the water heater caused by freezing of the pipe work to or from the water heater is not covered under the Rheem warranty. Refer to AS/NZS 3500.4 for precautions to be taken for installations in frost prone areas. The water heater is not suitable for installation in areas where the ambient temperature falls below -20ºC (including wind chill factor).
- Page 20 INSTALLATION – WATER HEATER 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 an 874 series water heater and the hot water outlets in any ablution and public areas such as a bathroom, ensuite or public amenities, to reduce the risk of scalding.
- Page 21 INSTALLATION – WATER HEATER DIMENSIONS AND TECHNICAL DATA Model 874W27 Rated delivery litres / min 16.5 (@ 40°C rise) Recovery litres / min (@ 25°C rise) Mass Empty Hourly Gas Gas Details Test Point Gas Pressure (kPa) Min Gas Pressure Max Gas Pressure Consumption (kPa)
- Page 22 INSTALLATION – WATER HEATER TYPICAL INSTALLATION – OUTDOOR LOCATION...
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Page 23: Connections - Plumbing
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/NZS 5601.1, as applicable under local regulations, and all local codes and regulatory authority requirements. - Page 24 Warning: Always isolate the water heater before pressure testing the gas supply system. Disconnect the water heater after the isolation valve to prevent the risk of serious damage to the gas control. The Rheem warranty does not cover damage of any nature resulting from failure to observe this precaution. Refer to rating label for gas types and pressures.
- Page 25 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.
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Page 26: Connections - Electrical
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. All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the Wiring Rules AS/NZS 3000 and all local codes and regulatory authority requirements. -
Page 27: Wiring Diagram
WIRING DIAGRAM... -
Page 28: Commissioning
COMMISSIONING All water heaters are tested and adjusted before dispatch from the factory, however further adjustments may become necessary because of local conditions. TO TURN ON THE WATER HEATER Open all of the hot taps in the house (don‟t forget the shower). Open the cold water isolation valve fully at the inlet to the water heater. - Page 29 COMMISSIONING Gas Inlet Test Point Pressure To check the gas inlet pressure: Close any hot taps and ensure the burners are not operating. Close the gas isolation valve at the gas inlet to the water heater. Locate the gas inlet test point on the gas connection to the water heater.
- Page 30 COMMISSIONING BURNER GAS PRESSURE It is necessary to check the burner gas pressure at both the minimum and maximum operational settings. To check and if necessary adjust the operational gas pressures, the electrical supply to the water heater must be switched on, the burners ignited and hot water must be flowing from a hot tap. Warning: The removal of the front panel will expose 240 volt wiring.
- Page 31 COMMISSIONING Notes: If the burners extinguish and error code 11 or 12 starts to flash on the LED display: release the MIN and adjuster buttons close the hot tap recommence the procedure from Step 8. If the adjuster button is released before Step 13, clear any error code (if displayed) and recommence the procedure from Step 8.
- Page 32 COMMISSIONING TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING The temperature settings will be displayed on the LED display. The preset outlet temperature settings are: 874 series 38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 60°C, 70°C, 75°C Notes: Setting the preset outlet temperature to less than 50°C IS NOT RECOMMENDED. If the temperature is adjusted to less than 50°C the water saving function of the water heater will not operate resulting in nil water saving.
- Page 33 The frost protection system will be rendered inoperable if electrical power is not available at the water heater. Damage caused by freezing due to the unavailability of power at the water heater is not covered by the “Terms of the Rheem Warranty” Rheem warranty (refer to on page 35).
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Page 34: Draining The Water Heater
DRAINING THE WATER HEATER To drain the water heater: Switch off the electrical supply at the power outlet to the water heater. Close the gas isolation valve at the inlet to the water heater. Leave the cold water isolation valve open at the inlet to the water heater. Open hot tap (preferably the shower outlet) for 20 seconds, to purge any hot water left in the water heater. -
Page 35: Warranty
2.1 The decision of whether to repair or replace a faulty component is at Rheem’s sole discretion. 2.2 If you require a call out and we find that the fault is not covered by the Rheem warranty, you are responsible for our standard call out charge. - Page 36 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 component of your water heater if it fails to operate in accordance with its specifications as...