Page 2 - Registered trademark of Rheem Australia Pty Ltd.; with the householder or a 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 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 wate...
Page 3 - CONTENTS; RESPONSIBLE OFFICER - We recommend you read pages 4 to 14.
3 CONTENTS RESPONSIBLE OFFICER - We recommend you read pages 4 to 14. The other pages are intended for the installer but may be of interest. About Your Water Heater ............................................................................................................ 4 Water Supplies ............
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 ® continuous flow gas water heater model you have chosen is for outdoor installation only. T...
Page 5 - MAINS PRESSURE; must not; HOTTER WATER INCREASES THE RISK OF SCALD INJURY
ABOUT YOUR WATER HEATER 5 MAINS PRESSURE The water heater is designed for direct connection to the mains water supply. If the mains supply pressure in your area exceeds that shown on page 17, a pressure limiting valve must be fitted. The supply pressure should be greater than 140 kPa for the rated f...
Page 6 - SAFETY; flammable materials; PRECAUTIONS
ABOUT YOUR WATER HEATER 6 SAFETY This water heater is supplied with temperature sensors, a FlameSafe ® protection system and a pressure relief valve. These devices must not be tampered with or removed. The water heater must not be operated unless each of these devices is fitted and is in working ord...
Page 7 - GENERAL MAINTENANCE; Warning; Check and if necessary adjust the gas pressure.
ABOUT YOUR WATER HEATER 7 GENERAL MAINTENANCE The jacket of the water heater can be cleaned with a soft cloth and warm mild soapy water. Under no circumstances should abrasive materials or powders be used. The area around the water heater can be sprayed with insecticide to rid the area of insects. I...
Page 8 - CIRCULATED HOT WATER FLOW AND RETURN SYSTEM
ABOUT YOUR WATER HEATER 8 CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Rheem 872 627 model continuous flow water heater can be installed as part of a circulated hot water flow and return system in a building. Refer to “Circulated Hot Water Flow and Return System” on page 21 for further information ...
Page 9 - FROST PROTECTION
ABOUT YOUR WATER HEATER 9 FROST PROTECTION The water heater has a frost protection system. The frost protection system will protect the water heater from damage, by preventing ice forming in the waterways of the water heater, in the event of freezing conditions occurring. Notes: The frost protecti...
Page 10 - HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?; VICTORIAN CUSTOMERS
ABOUT YOUR WATER HEATER 10 HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 15 to 24. The water heater must be installed: by a qualified person, and in accordance with the installation instructions, and in compliance with Standards AS/NZS 3...
Page 11 - WATER SUPPLIES; CHANGE OF WATER SUPPLY; GAS CONTINUOUS FLOW WATER HEATERS; SATURATION INDEX; very corrosive
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 suppl ies. However, there are some known water chemistries which can have detrimen...
Page 12 - SAVE A SERVICE CALL; “Terms of the Rheem Warranty”
12 SAVE A SERVICE CALL Check the items below before making a service call. You will be charged for attending to any condition or fault, which is not related to manufacture or failure of a part (refer to “Terms of the Rheem Warranty” on page 39). NO DISPLAY ON THE CONTROLLER (IF FITTED) Is the cont...
Page 13 - NO WATER FROM THE HOT TAP
SAVE A SERVICE CALL 13 NO WATER FROM THE HOT TAP No flow of water from the hot tap may indicate a restriction in or failure of the cold water supply to the water heater. Check for water flow at other taps and that the cold water isolation valve (refer to page 25 ) is fully open. GAS BOOSTER OPERATIN...
Page 14 - CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL; Normal operation; “Mains Water Supply”
SAVE A SERVICE CALL 14 CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL During the heating cycle, it is not unusual to see water vapour clouds steaming from the flue terminal, particularly on cold days. This is normal operation of the water heater. PRESSURE RELIEF VALVE DISCHARGING A pressure relief ...
Page 15 - INSTALLATION – WATER HEATER; INSTALLATION STANDARDS
15 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 instal...
Page 16 - bottom of the unit (refer to page 23 for; Clearance Requirements
INSTALLATION – WATER HEATER 16 Note: The water heater must be well secured to the wall or frame using two fasteners each at the top and bottom of the unit (refer to page 23 for mounting hole positions and weight of the water heater). Use the screws provided only if they are suitable for the wall or ...
Page 17 - INSTALLATION WITHIN A COVERED AREA; Relief valve setting; some models. Refer to the Owner’s Guide and Installation
INSTALLATION – WATER HEATER 17 INSTALLATION WITHIN A COVERED AREA The water heater must be located such that the installation meets the requirements of either AS 5601 or AS/NZS 5601.1 as applicable under local regulations. There must be sufficient ventilation so the water heater has an adequate supp...
Page 19 - HOT WATER DELIVERY; Two Temperature Zones Using a Temperature Limiting Device; Gas Booster for a Solar Water Heater
INSTALLATION – WATER HEATER 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 an 872 series water heater and the hot water outlets in any ablution and public areas ...
Page 20 - before the non-return valve prior; MUST BE; installed on the cold water line to the solar storage tank; AFTER
INSTALLATION – WATER HEATER 20 Where a temperature limiting device is installed adjacent to the in-series gas booster, the cold water line to the temperature limiting device can be branched off the cold water line either before or after the isolation valve and pressure limiting valve to the solar st...
Page 22 - Circulated Hot Water Flow and Return
INSTALLATION – WATER HEATER 22 LEGEND LEGEND Circulated Hot Water Flow and Return In-series Gas Booster as part of a Solar Water Heater Installation from solar storage tank
Page 24 - TYPICAL INSTALLATION
INSTALLATION – WATER HEATER 24 TYPICAL INSTALLATION – OUTDOOR LOCATION
Page 25 - CONNECTIONS – PLUMBING; CONNECTION SIZES; Model; WATER INLET AND OUTLET; A non-return valve or stop tap must not be; “Hot Water Delivery”; WATER AND GAS CONNECTION DETAIL; Gas Water Heater
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/...
Page 26 - PIPE SIZES; of copper or other
CONNECTIONS – PLUMBING 26 PIPE SIZES The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing the most suitable pipe size to ensure adequate flow for each individual application. Reference to the technical specifications of the water heater and local...
Page 27 - CONNECTIONS – ELECTRICAL; Temperature controllers; be fitted to this water heater (872 series) if it is installed as; must be; Component; Gas water heater
27 CONNECTIONS – ELECTRICAL 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. Warning: Temperature controllers must not be fitted to this water heater (872 ...
Page 28 - MULTIPLE INSTALLATIONS; plumbing arrangement. The installation may operate on a dead leg; No of water heaters; booster installation to a solar water heater.
28 MULTIPLE INSTALLATIONS A multiple installation of 27 litre gas water heaters on a single manifold is possible, using a parallel plumbing arrangement, where large volumes of hot water are required. It is good practice, but not essential, to install the water heaters in an Equa-Flow ® plumbing arra...
Page 29 - Refer to the diagram on
MULTIPLE INSTALLATIONS 29 Refer to the diagram on page 29 for installation and plant layout details. PRESSURE REDUCING VALVE COMMISSIONING PROCEDURE The pressure reducing valves must be set and commissioned for each water heater so the water heaters will turn on and off in sequence when the flow rat...
Page 30 - “Commissioning”; Clockwise
MULTIPLE INSTALLATIONS 30 To set and commission the pressure reducing valves: 1. Commissioning: Commission each of the water heaters prior to setting the pressure reducing valve on the cold (or solar preheat) branch to the water heater (refer to “Commissioning” on page 31). 2. Turn on services: Turn...
Page 31 - COMMISSIONING; TO TURN ON THE WATER HEATER; GAS INLET PRESSURE
31 COMMISSIONING All water heaters are tested and adjusted before dispatch from the factory, however further adjustments may become necessary because of local conditions. Note: If this water heater is installed as part of a multiple installation, i.e. in a bank of water heaters, it will be necessary...
Page 32 - Gas Inlet Test Point Pressure
COMMISSIONING 32 Gas Inlet Test Point Pressure To check the gas inlet pressure: 1. Close any hot taps and ensure the burners are not operating. 2. Close the gas isolation valve at the gas inlet to the water heater. 3. Locate the gas inlet test point on the gas connection to the water heater. Remov...
Page 33 - BURNER GAS PRESSURE; Minimum test point gas pressure; DIP SWITCH AND ADJUSTMENT BUTTONS; LED DISPLAY - TEST POINT GAS PRESSURE
COMMISSIONING 33 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...
Page 34 - “Clearing Error Code”; Maximum test point gas pressure; “Minimum test point gas pressure”; Clearing Error Code
COMMISSIONING 34 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 clear the error code (refer to “Clearing Error Code” on page 34) recommence the procedure from Step 8. If the adjuster butt...
Page 35 - PRESET OUTLET TEMPERATURE SETTING; Note
COMMISSIONING 35 PRESET OUTLET TEMPERATURE SETTING The factory preset outlet temperature setting of the water heater is: 872 series 60°C for a single water heater 60°C as part of a Multipak system 70°C as part of a Commpak system If a temperature controller is connected to the water heater, this w...
Page 36 - TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING; OFF; LED Display; OFF ON; OFF ON; OFF ON
COMMISSIONING 36 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: 872 series 38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 60°C, 65°C, 70°C, 75°C, 82°C It is necessary to have the electri...
Page 37 - TO TURN OFF THE WATER HEATER; DRAINING THE WATER HEATER; Turn off the water heater (refer to
COMMISSIONING 37 TO TURN OFF THE WATER HEATER If it is necessary to turn off the water heater on completion of the installation, such as on a building site or where the premises is vacant, then: Turn off the controllers(s) (if fitted) by pressing the on / off button. The light in the on / off butt...
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Page 39 - CONTINUOUS FLOW GAS WATER HEATER 872 627 MODELS; (not for service; TERMS OF THE RHEEM WARRANTY AND EXCLUSIONS TO IT; serviceable position is not covered by this warranty.
39 RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA ONLY CONTINUOUS FLOW GAS WATER HEATER 872 627 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, the supplier of Rheem continuo...
Page 40 - Revision Date: 2017 September; Australian Consumer Law
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA ONLY Revision Date: 2017 September 122471E 40 CONTINUOUS FLOW GAS WATER HEATER 872 627 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 component of yo...
