Owner’s Guide and Installation Instructions Continuous Flow Gas Water Heater 871, 875 Series This water heater must be installed and serviced by a qualified person. Please leave this guide with the householder.
Warning: Upon completion of the installation and commissioning of the water heater, leave this guide with the householder or a responsible officer. DO NOT leave this guide inside of the cover of the water heater, as it may interfere with the safe operation of the water heater or ignite when the water heater is turned on. PATENTS This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd, Rheem New Zealand Limited or Paloma Co., Ltd.
CONTENTS HOUSEHOLDER - We recommend you read pages 4 to 44. The other pages are intended for the installer but may be of interest. About Your Water Heater............................................................................................................ 4 Temperature Control ................................................................................................................. 11 Temperature Control – Standard .............................................................................
ABOUT YOUR WATER HEATER WATER HEATER APPLICATION This water heater is designed for use in a single family domestic dwelling 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. This model has an extended manufacturer’s warranty (refer to the Rheem warranty on page 75).
ABOUT YOUR WATER HEATER 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 47, a pressure limiting valve must be fitted. The supply pressure should be greater than 140 kPa for the rated flow and performance to be achieved.
ABOUT YOUR WATER HEATER HOTTER WATER INCREASES THE RISK OF SCALD INJURY This water heater can deliver water at temperatures which can cause scalding. Check the water temperature before use, such as when entering a shower or filling a bath or basin, to ensure it is suitable for the application and will not cause scald injury.
ABOUT YOUR WATER HEATER PRECAUTIONS Where damage to property can occur in the event of the water heater leaking, the water heater must be installed over a safe tray. Construction, installation and draining of a safe tray must comply with AS/NZS 3500.4 and all local codes and regulatory authority requirements. The water heater must be maintained in accordance with the Owner’s Guide and Installation Instructions.
ABOUT YOUR WATER HEATER TO TURN OFF THE WATER HEATER If it is necessary to turn off the water heater: • Turn off the controllers(s) (if fitted) by pressing the on / off button. The light in the on / off button will go out and the priority light (standard controller) or the ACTIVE light (Deluxe controller), if it is on, will go out. • Switch off the electrical supply at the power outlet to the water heater if there is no risk of freezing conditions occurring (refer to note below).
ABOUT YOUR WATER HEATER 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 protection system will be rendered inoperable if electrical power is not available at the water heater.
ABOUT YOUR WATER HEATER HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? Installation requirements are shown on pages 45 to 56. The water heater must be installed: • by a qualified person, and • in accordance with the installation instructions, and • in compliance with Standards AS/NZS 3500.4, AS 5601 or AS/NZS 5601.1, as applicable under local regulations, and all local codes and regulatory authority requirements.
TEMPERATURE CONTROL CONTROLLERS The Rheem 871 and 875 series can be installed with Rheem controllers to enable the user to control the temperature of the delivered water from the outlet of the water heater. There are two families of Rheem controllers suitable for installation with this water heater. These are the standard controllers and the Deluxe controllers. Standard Controllers There are three types of standard controller.
TEMPERATURE CONTROL – STANDARD STANDARD CONTROLLER FUNCTIONS If one or more controllers are installed, at least one must be on for the water heater to operate. If all controllers are off, the water heater will only deliver cold water. on / off button – This button must be pressed once to turn on the controller. A controller cannot be turned on if water is flowing from a hot tap. To turn off a controller, press the on / off button once. The light will go out.
TEMPERATURE CONTROL – STANDARD STANDARD CONTROLLER priority light in use light i up button display panel water volume symbol j down button water volume operating light on / off operating light water volume button on / off button controller type K = Kitchen B1 = Bathroom1 B2 = Bathroom2 Note: water volume button, water volume operating light and water volume symbol are on the Kitchen controller only. SILENCING A CONTROLLER – STANDARD The controller emits a sound whenever a button is pressed.
TEMPERATURE CONTROL – STANDARD TEMPERATURE SETTINGS – STANDARD CONTROLLER The temperature settings of each type of controller are: • Bathroom1 & 2 37°C to 46°C (in 1°C increments), 48°C*, 50°C • Kitchen 37°C to 46°C (in 1°C increments), 48°C*, 50°C, 55°C**, 60°C * limited to 48°C on an 875 series model. ** NZ – limited to 55°C. Temperature settings 37 38 warm 39 40 41 42 43 44 average hot shower 45 46 48 hot 50 55 60 very hot The installation of a Bathroom controller(s) only (i.e.
TEMPERATURE CONTROL – STANDARD TEMPERATURE ADJUSTMENT – STANDARD CONTROLLER • A controller must be on and have priority to be able to adjust the temperature setting. • The temperature adjustment is made by pressing the up (i) button or down (j) button. • The maximum temperature setting for the controllers are: Kitchen Bathroom 871 series 60°C – AU, 55°C – NZ 50°C 875 series 48°C 48°C • Each press of the up (i) button will increase the temperature setting by one increment.
TEMPERATURE CONTROL – STANDARD KITCHEN CONTROLLER – STANDARD The Kitchen controller allows the user to select the temperature setting for the hot water to be used in the kitchen and laundry. It has a minimum temperature setting of 37°C and a maximum temperature setting of: • 871 series 60°C – AU • 875 series 48°C 55°C – NZ The Kitchen controller does not have priority if a Bathroom controller is on. Notes on the Kitchen controller: • The controller cannot be turned on whilst a hot tap is open.
TEMPERATURE CONTROL – STANDARD To operate the Kitchen controller: 1. Turn off the Bathroom controller(s) 2. If a temperature setting is displayed and the priority light is not glowing, it is necessary to turn off the Bathroom controller(s) to gain priority. Refer to the notes on the Kitchen controller on page 16. Turn on the Kitchen controller Press the on / off button. pri ori ty in us e The on / off operating light and the priority light will both glow.
TEMPERATURE CONTROL – STANDARD BATHROOM CONTROLLERS – STANDARD The Bathroom controller(s) allows the user to select the temperature setting for the hot water to be used in the bathroom. They have a minimum temperature setting of 37°C and a maximum temperature setting of: • 871 series 50°C • 875 series 48°C The Bathroom controllers operate in tandem. Whenever an operation is selected on one Bathroom controller, it is also set on the other Bathroom controller.
TEMPERATURE CONTROL – STANDARD To operate a Bathroom controller: 1. Turn off the Kitchen controller If a temperature setting is displayed and the priority light is not glowing, it is advised to turn off the Kitchen controller. Refer to the notes on the Bathroom controllers on page 18. 2. Turn on the Bathroom controller Press the on / off button. 40 The on / off operating light and the priority light will both glow. The temperature setting of 40°C will be displayed. 3.
TEMPERATURE CONTROL – STANDARD WATER VOLUME FUNCTION – STANDARD CONTROLLER The water volume function is designed to warn, by a beeping sound, that a certain volume of water has been delivered from the water heater. It does not stop either the flow of or the heating of water. This function is particularly useful if a bath is being filled, or measuring the water consumed by the use of a shower. The water volume function can only be set by the Kitchen controller.
TEMPERATURE CONTROL – STANDARD 5. Turn off the alarm Press the water volume button to turn off the alarm. 42 The water volume operating light goes out and 0 x10l is displayed momentarily on the controller. The temperature setting of the controller with priority is then displayed. 6.
TEMPERATURE CONTROL – DELUXE DELUXE CONTROLLER FUNCTIONS If one or more Deluxe controllers are installed, at least one must be on or the bath fill function activated for the water heater to operate. If all Deluxe controllers and the bath fill function are off, the water heater will only deliver cold water. ON / OFF button – The ON / OFF button must be pressed once to turn on the Deluxe controller. A Deluxe controller cannot be turned on if water is flowing from a hot tap.
TEMPERATURE CONTROL – DELUXE bath fill water volume display panel – The selected bath fill water volume is displayed in litres on all Deluxe controllers. The selected bath fill water volume is displayed whenever the Bath Fill mode is on (refer to “Bath Fill Mode” on page 32) or when the bath fill water volume is being adjusted and the Bath Fill mode is off.
TEMPERATURE CONTROL – DELUXE VOICE PROMPT AND OPERATING TONE The Deluxe controllers have a series of voice prompts and operating tones which sound during certain operations. The voice prompts and operating tones sound from all Deluxe controllers, regardless of which Deluxe controller is being operated at the time.
TEMPERATURE CONTROL – DELUXE Adjusting the Volume of the Voice Prompt and Operating Tone The volume of the voice prompt and the operating tone can be adjusted to a level comfortable for you. The volume of the voice prompt and the operating tone can be adjusted independently of each other. The volume levels on a Deluxe controller are adjusted independently of another Deluxe controller.
TEMPERATURE CONTROL – DELUXE TEMPERATURE SETTINGS – DELUXE CONTROLLERS The temperature settings of each type of Deluxe controller are: • Bathroom1 & 2 Deluxe 37°C to 46°C (in 1°C increments), 48°C*, 50°C • Kitchen Deluxe 37°C to 46°C (in 1°C increments), 48°C*, 50°C, 55°C**, 60°C * limited to 48°C on an 875 series model and when set to Bath Fill mode on 871 series model. This is to ensure the water temperature does not exceed 50°C. ** NZ – limited to 55°C.
TEMPERATURE CONTROL – DELUXE TEMPERATURE ADJUSTMENT – DELUXE CONTROLLERS • A controller must be on with the ACTIVE indicator displayed to be able to adjust the temperature setting. • The temperature adjustment is made by pressing the up (i) button or down (j) button. • The minimum temperature setting for each type of controller is 37°C.
TEMPERATURE CONTROL – DELUXE KITCHEN CONTROLLER – DELUXE The Kitchen Deluxe controller allows the user to select the temperature setting for the hot water to be used in the kitchen and laundry. It has a minimum temperature setting of 37°C and a maximum temperature setting of: • 871 series 60°C – AU • 875 series 48°C 55°C – NZ The Kitchen Deluxe controller does not have priority (ACTIVE light is off) if a Bathroom Deluxe controller is on.
TEMPERATURE CONTROL – DELUXE To operate the Kitchen Deluxe controller: 1. Turn off the Bathroom Deluxe controller(s) 2. If a temperature setting is displayed and the ACTIVE light is not glowing, it is necessary to turn off the Bathroom Deluxe controller(s) to gain priority. Refer to the notes on the Kitchen Deluxe controller on page 28. 8888 BATH (l) 55 BATH FILL The Kitchen controller temperature setting will be displayed.
TEMPERATURE CONTROL – DELUXE BATHROOM CONTROLLERS – DELUXE The Bathroom Deluxe controller(s) allows the user to select the temperature setting for the hot water to be used in the bathroom. They have a minimum temperature setting of 37°C and a maximum temperature setting of: • 871 series 50°C • 875 series 48°C The Bathroom Deluxe controllers operate in tandem. Whenever an operation is selected on one Bathroom Deluxe controller, it is also set on the other Bathroom Deluxe controller.
TEMPERATURE CONTROL – DELUXE To operate a Bathroom Deluxe controller: 1. Turn off the Kitchen Deluxe controller If a temperature setting is displayed and the ACTIVE and ON / OFF operating lights are not glowing, it is advised to turn off the Kitchen Deluxe controller. Refer to the notes on the Bathroom Deluxe controllers on page 30. 2. BATH (l) 55 °C BATH FILL ON/OFF Turn on the Bathroom Deluxe controller Press the ON / OFF button.
TEMPERATURE CONTROL – DELUXE BATH FILL MODE The Bath Fill mode is designed to allow the water heater to deliver a selected volume of water at a selected temperature. The Bath Fill mode commences when the BATH FILL button is on and a hot tap is opened. When the set volume has been delivered, the water flow from the water heater ceases and heating stops. It is also useful for controlling the water volume used by a shower or other application.
TEMPERATURE CONTROL – DELUXE 5. Close the front panel on the Deluxe controller. 6. Turn on the Bath Fill mode Rheem Press the BATH FILL button. On all Deluxe controllers: ¾ The BATH FILL operating light will glow. ¾ The bath fill temperature setting will appear on the temperature display panel. ¾ The bath fill water volume will appear on the bath fill water volume display panel. ¾ 7. ACTIVE The bath fill indicator light will glow.
TEMPERATURE CONTROL – DELUXE Bath Fill Mode – Explanatory Notes To operate the Bath Fill mode: 1. Turn off all Deluxe controllers It is advised to turn off all Deluxe controller(s) before activating the Bath Fill mode. ACTIVE BATH (l) Refer to the notes on the Bathroom Deluxe controllers on page 30. °C 40 120 BATH FILL The Deluxe controllers do not need to be on to set the bath fill temperature and bath fill water volume and to turn on the Bath Fill mode.
TEMPERATURE CONTROL – DELUXE 4. Set the bath fill water volume Press the BATH FILL VOLUME i (up button) or the BATH FILL VOLUME j (down button). ACTIVE The first press of either the BATH FILL VOLUME i (up button) or the BATH FILL VOLUME j (down button) will display the last selected bath fill water volume setting in the bath fill water volume display panel and the bath fill indicator light will glow.
TEMPERATURE CONTROL – DELUXE 7. Open the hot tap. The operating light will glow on all Deluxe controllers. Measurement of the water flow at the water heater will commence when the hot tap is opened. Notes: ACTIVE 120 BATH (l) 40 °C BATH FILL ON/OFF If a second hot tap is opened when the Bath Fill mode is turned on, the set bath fill water volume expected from the first hot tap will be reduced by the volume which flows through the second hot tap.
TEMPERATURE CONTROL – DELUXE Turning Off Bath Fill Mode During Its Operation The bath fill operation can be interrupted by pressing the BATH FILL button before completion of the bath fill operation.
TEMPERATURE CONTROL – DELUXE Notes on the Bath Fill mode: • The Bath Fill mode can be set, turned on and turned off at any of the Deluxe controllers. • The Deluxe controllers do not require to have priority (ACTIVE light glowing) or be on in order to set the bath fill water volume or bath fill temperature or to turn the BATH FILL button on. • The BATH FILL button cannot be turned on whilst a hot tap is open.
TEMPERATURE CONTROL – DELUXE Opening a Second Hot Water Tap During Bath Fill Operation • The bath fill water volume is measured as the water flows through the water heater. If more than one hot tap is open, the Bath Fill mode will measure the total water volume drawn from all taps and the expected water volume from the first tap will be decreased.
TEMPERATURE CONTROL – DELUXE Operation of the Bath Fill mode whilst a Deluxe Controller is ACTIVE It is recommended the Bath Fill mode be set and operated with the Deluxe controllers turned off (refer to Step 1 on page 34).
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 detrimental effects on the water heater and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to obtain information from your local water supply authority.
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 75). NO DISPLAY ON THE CONTROLLER • Is the controller turned on? Press the on / off button (refer to “Temperature Control” on pages 11 to 40).
SAVE A SERVICE CALL 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 57) is fully open. GAS BOOSTER OPERATING TOO FREQUENTLY If the water heater is installed as an in-series gas booster to a solar water heater, you may find that the water heater operates more frequently than expected.
SAVE A SERVICE CALL 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 valve is incorporated into the water heater controls. This valve protects the water heater, by allowing water to escape, in the event of excessive pressure build up in the waterways.
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: • by a qualified person, and • in accordance with the installation instructions, and • in compliance with Standards AS/NZS 3500.4, AS 5601 or AS/NZS 5601.
INSTALLATION – WATER HEATER This water heater must be installed vertically upright with the water, gas and power connections on the underside, pointing toward the ground. The back of the water heater can be either against a wall or supported by a frame. The water heater must be secured to the wall or frame using either the screws provided or other mounting screws suitable for the application, two each at the top and bottom of the unit (refer to page 53 for mounting hole positions).
INSTALLATION – WATER HEATER RECESS INSTALLATION The water heater can be installed recessed into a wall. A recess box (AU - Part 299842, NZ - Part 316383) is available for such an installation. Refer to the installation instructions which accompany the recess box kit for information on its installation. An additional rating label is supplied attached to the inside of the front cover of the water heater. This is for a service person to access the water heater details when required.
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 871 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.
INSTALLATION – WATER HEATER 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 storage tank, but it MUST BE before the non return valve prior to an open circuit direct system.
INSTALLATION – WATER HEATER CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Rheem 871 series continuous flow water heater can be installed as part of a circulated hot water flow and return system in a building. Notes: • the preset outlet temperature setting of the water heater must be set to at least 60°C. • temperature controllers should not be installed with a water heater as part of a circulated hot water flow and return system.
INSTALLATION – WATER HEATER from solar storage tank Circulated Hot Water Flow and Return In-series Gas Booster as part of a Solar Water Heater Installation REDUCING HEAT LOSSES The hot water line from the water heater and the pipe work between the solar storage tank, if one is installed, and the in-series gas booster must be insulated in accordance with the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed.
INSTALLATION – WATER HEATER WATER TEMPERATURE DIAGRAMS Note: NZ - max Kitchen Controller and outlet temperature is 55°C 871 Series - Kitchen and Bathroom Controllers 875 Series – Kitchen and Bathroom Controllers Note: NZ - max Kitchen Controller and outlet temperature is 55°C 871 Series - Kitchen Controller Only 875 Series - Kitchen Controller Only 871 Series - Bathroom Controllers Only 875 Series - Bathroom Controllers Only Note: NZ - maximum outlet temperature is 75°C 871 Series - No Controllers
INSTALLATION – WATER HEATER DIMENSIONS AND TECHNICAL DATA Model 871 018 875 018 - 871 020 - 871 022 875 022 - 871 024 871 M24 875 024 875 M24 871 026 875 026 - Rated delivery (@ 40°C rise) litres / min 12.5 12.5 15 15 16 Recovery (@ 25°C rise) litres / min 18 20 22 24 26 kg 20 20 21 21 21 Mass Empty Gas Details Hourly Gas Consumption (MJ) 018 020 Natural Propane LPG 157 157 157 022 024 M24 188 188 188 Min. Gas Pressure (kPa) Max.
INSTALLATION – WATER HEATER DIMENSIONS – STANDARD CONTROLLERS Kitchen Controller (Standard) Bathroom Controller (Standard) 54
INSTALLATION – WATER HEATER DIMENSIONS – DELUXE CONTROLLERS Deluxe Controller – Cover Closed Deluxe Controller – Cover Open 55
INSTALLATION – WATER HEATER TYPICAL INSTALLATION – OUTDOOR LOCATION Clearances must comply with AS 5601, AS/NZS 5601.
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. In New Zealand the installation must also conform with the New Zealand Building Code. 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.
CONNECTIONS – PLUMBING 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 regulatory authority requirements must be made. To achieve true mains pressure operation, the cold water line to the water heater should be the same size or bigger than the hot water line from the water heater.
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.
INSTALLATION – CONTROLLERS CONTROLLERS The Rheem 871 and 875 series can be installed with Rheem controllers to enable the user to control the temperature of the delivered water from the outlet of the water heater. There are two families of Rheem controllers suitable for installation with this water heater. These are the standard controllers and the Deluxe controllers. Standard Controllers There are three types of standard controller.
INSTALLATION – CONTROLLERS Location – The controllers must be installed in dry, shaded and clean locations. Do not install the controllers: • Near a heat source, such as a cook top, stove or oven. Heat, steam and smoke will interfere with the electronic components of the controllers. • In direct sunlight. • In or near a wet area. The controllers are not waterproof. Water may damage the controllers. • Outdoors. The controllers are not weatherproof.
INSTALLATION – CONTROLLERS Wiring installation: 1. Penetrate the wall with a 30-35 mm hole at the controller location. 2. Install the Kitchen controller cable between the location of the controller and the water heater. 3. Remove the base plate from the controller. 4. Draw the cable through the central hole in the base plate. 5. Fix the base plate to the wall using suitable screws and wall anchors. Ensure the projections in the base plate are pointing upwards. 6.
INSTALLATION – CONTROLLERS If it is necessary to have an exposed wiring installation, follow this procedure omitting Steps 1 and 4, and make an opening in the thin section in the underside of the controller to accommodate the cable (as shown in the diagram), prior to Step 6.
INSTALLATION – CONTROLLERS BATHROOM1 AND BATHROOM2 CONTROLLERS If only one Bathroom controller is to be installed, the standard Bathroom1 Controller (Rheem AU Part 299854, NZ - Part A299851) or the Bathroom1 Deluxe controller (Rheem AU - Part 299862, NZ Part A299862) must be used.
INSTALLATION – CONTROLLERS Wiring installation: 1. Penetrate the wall with a 30-35 mm hole at the controller location. 2. Install the supplied cable between the location of the controller and the water heater. 3. Remove the base plate from the controller. 4. Peel off one side of the adhesive paper from the foam packing and adhere to the back face of the base plate. This is the side without the projections. 5. Peel off the remaining adhesive paper from the foam packing. 6.
INSTALLATION – CONTROLLERS CONNECTING THE CONTROLLER(S) TO THE WATER HEATER To connect the controller(s) to the water heater: water heater 1. Ensure the electrical supply to the water heater is switched off. 2. Unscrew and gently remove the electrical cover from the underside of the water heater. 3. Draw the cable(s) through the electrical cover. 4. Connect a cable lug from each cable to each of the remote controller terminals. Each cable has two cable lugs.
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. Air will be forced out of the taps. • Close each tap as water flows freely from it. • Check the pipe work for leaks. • Open the gas isolation valve fully.
COMMISSIONING 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. Remove the test point screw and washer from the test point orifice. Connect the manometer. 4. Open the gas isolation valve fully at the gas inlet to the water heater. 5.
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. Take care not to touch wiring terminals.
COMMISSIONING Notes: • • If the burners extinguish and error code 11 or12 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 70) 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.
COMMISSIONING PRESET OUTLET TEMPERATURE SETTING The factory preset outlet temperature setting of the water heater is: • 871 series (pre 2007 manufacture date) 50°C – AU, 55°C – NZ • 871 series (from 2007 manufacture date) 60°C – AU, 55°C – NZ • 875 series 48°C If a temperature controller is connected to the water heater, this will override the preset outlet temperature setting and the maximum temperature setting will be: Maximum Outlet Temperature Kitchen controller connected Bathroom controller
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: • 871 series 40°C, 43°C, 50°C, 55°C, 60°C, 70°C*, 75°C** * AU – 70°C is the maximum preset outlet temperature. ** NZ – 75°C is the maximum preset outlet temperature. No 70°C setting.
COMMISSIONING 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 button will go out and the priority light (standard controller) or the ACTIVE light (Deluxe controller), if it is on, will go out.
DRAINING THE WATER HEATER To drain the water heater: • Turn off the water heater (refer to “Turn Off The Water Heater” on page 73). • Open a hot tap (preferably the shower outlet). • Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of the water heater. Water will drain from the water heater. • When water stops flowing from the water heater, close the hot tap.
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA AND NEW ZEALAND ONLY CONTINUOUS FLOW GAS WATER HEATERS 871, 875 SERIES 1. THE RHEEM WARRANTY – GENERAL 1.1 This warranty is given in Australia by Rheem Australia Pty Limited ABN 21 098 823 511 of 1 Alan Street, Rydalmere New South Wales, and in New Zealand by Rheem New Zealand Limited of 475 Rosebank Road Avondale Auckland 1026, the suppliers of Rheem continuous flow gas water heaters. 1.
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA AND NEW ZEALAND ONLY CONTINUOUS FLOW GAS WATER HEATERS 871, 875 SERIES 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.
