Owner’s Guide and Installation Instructions Continuous Flow Gas Water Heater 874, 876 series 627 models 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 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 83).
ABOUT YOUR WATER HEATER GAS BOOSTING FOR A SOLAR WATER HEATER Water stored in the solar storage tank passes through the in-series gas booster when a hot tap is opened. The in-series gas booster is for heating water at times of low solar energy gain, such as during cloudy or rainy weather, or during colder months.
ABOUT YOUR WATER HEATER WARNING This water heater is only intended to be operated by persons who have the experience or the knowledge and the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical, sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do not interfere with the water heater. The water heater uses 240 Volt AC electrical power for operation of the control systems and the combustion fan.
ABOUT YOUR WATER HEATER 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. Insects encroaching into or nesting in the water heater can interfere with the operation of the water heater and also damage components.
ABOUT YOUR WATER HEATER CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Rheem 874 627 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 50 for further information and notes on this type of installation. GOING ON HOLIDAYS If you are going on holidays, it is not necessary to °C turn the water heater off.
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, and either AS 5601 or AS/NZS 5601.1 as applicable under local regulations, and all local codes and regulatory authority requirements. The Gas installations Standards AS 5601 and AS/NZS 5601.
TEMPERATURE CONTROL CONTROLLERS The Rheem 874 and 876 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.
88 X 10L TEMPERATURE CONTROL – STANDARD °C STANDARD CONTROLLER FUNCTIONS If one or more controllers are installed, at least one °C must be on for the water heater to operate. If all controllers are off, the water heater will only deliver cold water. 88 on / off ( ) button – This button must be pressed once to turn on the controller. °C A controller cannot be turned on if water is flowing from a hot tap. X 10L 88 X 10L To turn off a controller, press the on / off ( ) button once.
TEMPERATURE CONTROL – STANDARD STANDARD CONTROLLER Rheem priority light in use light up () button display panel °C water volume symbol down () button X 10L water volume operating light on / off operating light water volume button 88 controller type K = Kitchen B1 = Bathroom1 B2 = Bathroom2 Note: water volume ( Kitchen controller only.
TEMPERATURE CONTROL – STANDARD TEMPERATURE SETTINGS – STANDARD CONTROLLER The temperature settings of each type of controller are: Bathroom1 & 2 37°C to 48°C (in 1°C increments), 50°C Kitchen 37°C to 48°C (in 1°C increments), 50°C*, 55°C, 60°C * limited to 50°C on an 876 series model. Temperature settings 37 38 warm 39 40 41 42 43 44 average hot shower 45 46 47 hot 48 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 () button or down () button. The maximum temperature setting for the controllers are: Kitchen Bathroom 874 series 60°C 50°C 876 series 50°C 50°C Each press of the up () 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: 874 series 60°C 876 series 50°C The Kitchen controller does not have priority if a Bathroom controller is on. Notes on the Kitchen controller: The controller cannot°C be turned on whilst a hot tap is open.
TEMPERATURE CONTROL – STANDARD To operate the Kitchen controller: 1. Turn off the Bathroom controller(s) 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°Cthe notes on the Kitchen controller on page 16. 88 X 10L 2. Turn on the Kitchen controller Press the on / off ( ) button. 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: 874 series 50°C 876 series 50°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°Cthe notes on the Bathroom controllers on page 18. 88 X 10L 2. Turn on the Bathroom controller Press the on / off ( ) button. The on / off operating light and the priority light will both glow.
TEMPERATURE CONTROL – STANDARD WATER VOLUME FUNCTION The water volume function is designed to warn by an alarm (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 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. Refer to the notes on the water volume °C function on page 21.
88 °C TEMPERATURE CONTROL – STANDARD X 10L 5. Turn off the alarm Press the water volume ( alarm. ) button to turn off the The water volume operating light goes out and 0 x 10L is displayed momentarily on the controller. 42 °C X 10L The temperature setting of the controller with priority is then displayed. 6. Close the hot tap If it is a Bathroom controller which is in use and has priority, then it is advised to leave the controller on. Refer to the warning in the notes on page 18.
TEMPERATURE CONTROL – DELUXE 88 X 10L °C °C 88 DELUXE CONTROLLER FUNCTIONS If one or more Deluxe controllers are installed, at least one must °C 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. °C on / off ( ) button – The on / off ( ) button must be pressed once to turn on the Deluxe controller.
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 function is on (refer to “Bath-Fill Function” on page 32) or when the bath fill water volume is being adjusted and the Bath Fill function 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 48°C* (in 1°C increments), 50°C Kitchen Deluxe 37°C to 48°C* (in 1°C increments), 50°C**, 55°C, 60°C * limited to 48°C when the Bath Fill function is set with 874 and 876 series models. ** limited to 50°C on an 876 series model.
TEMPERATURE CONTROL – DELUXE TEMPERATURE ADJUSTMENT – DELUXE CONTROLLERS A controller must be on with the PRIORITY indicator displayed to be able to adjust the temperature setting. The temperature adjustment is made by pressing the up () button or down () 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: 874 series 60°C 876 series 50°C The Kitchen Deluxe controller does not have priority (PRIORITY 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) If a temperature setting is displayed and the PRIORITY light is not glowing, it is necessary to turn off the Bathroom Deluxe controller(s) to gain priority. °C Refer to the notes on the Kitchen Deluxe controller on page 28. 88 °C BATH (l) X 10L 2. Turn on the Kitchen Deluxe controller Press the on / off ( ) button.
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: 874 series 50°C 876 series 50°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 PRIORITY and on / off operating lights are not glowing, it is advised to turn off the Kitchen Deluxe controller. °C BATH (l) Refer °C to the notes on the Bathroom Deluxe controllers on page 30. 88 X 10L 2. Turn on the Bathroom Deluxe controller Press the on / off ( ) button.
°C 88 TEMPERATURE CONTROL – DELUXE X 10L BATH FILL FUNCTION The Bath Fill function is designed to allow the water heater to deliver a selected volume of water at a selected temperature. The Bath Fill function 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.
BATH (l) 5. 88 TEMPERATURE CONTROL – DELUXE °C Close the front panel on the Deluxe controller. X 10L 6. Turn on the Bath Fill function Press the bath fill ( Rheem ) button. On all Deluxe controllers: 7. The bath fill operating light will glow. The bath fill temperature setting will appear on the temperature display panel. The bath fill water volume will appear on the bath fill water volume display panel. The bath fill indicator light will glow.
TEMPERATURE CONTROL – DELUXE Bath Fill Function – Explanatory Notes To operate the Bath Fill function: 1. Turn off all Deluxe controllers It is advised to turn off all Deluxe controller(s) before activating the Bath Fill function. °C Refer to the notes on the Bathroom Deluxe controllers on page 30. BATH (l) 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 function. BATH FILL VOLUME 2.
TEMPERATURE CONTROL – DELUXE 4. Set the bath fill water volume Press the BATH FILL VOLUME up () button or the BATH FILL VOLUME down () button. The first press of either the BATH FILL VOLUME up () button or the BATH FILL VOLUME 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. 120 BATH (l) 40 °C Notes: If a second hot tap is opened when the Bath Fill function 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.
88 X 10L TEMPERATURE CONTROL – DELUXE °C Turning Off Bath Fill Function During Its Operation The bath fill operation can be interrupted by pressing the bath fill ( °C bath fill operation.
TEMPERATURE CONTROL – DELUXE °C 88 Notes on the Bath Fill °C function: 88 X 10L The Bath Fill function can be set, turned on and turned off at any of the Deluxe controllers. The Deluxe controllers do not require to have priority (PRIORITY light glowing) or be on in order to set the bath fill water volume or bath °C fill temperature or to turn the bath fill ( ) button on.
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 function 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 function whilst a Deluxe Controller has priority It is recommended the Bath Fill function 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 °C page 83). 88 X 10L 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 WATER FLOW FLUCTUATES More than two or three taps in use at the same time may cause a decrease in the hot water flow from the taps. This can also be evident if the water heater has been installed as an in-series gas booster to a solar water heater and the solar heated water is at a low temperature.
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, and either 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. 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 53 for mounting hole positions and weight of the water heater).
INSTALLATION – WATER HEATER 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 supply of combustion air and the flue products are dispersed safely.
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.
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 874 627 model 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. Water should not be circulated from a water heater with a temperature setting of less than 60°C.
INSTALLATION – WATER HEATER Circulated Hot Water Flow and Return – Continuous Flow Gas Water Heater LEGEND LEGEND from solar storage tank Circulated Hot Water Flow and Return – In-series Gas Booster as part of a Solar Water Heater Installation FROST PROTECTION LEGEND 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.
INSTALLATION – WATER HEATER WATER TEMPERATURE DIAGRAMS 874 Series - Kitchen and Bathroom Controllers 876 Series – Kitchen and Bathroom Controllers 874 Series - Kitchen Controller Only 876 Series - Kitchen Controller Only 874 Series - Bathroom Controllers Only 876 Series - Bathroom Controllers Only 874 Series - No Controllers 876 Series - No Controllers Notes: Temperature Limiting Devices – refer to “Hot Water Delivery” on page 48.
INSTALLATION – WATER HEATER DIMENSIONS AND TECHNICAL DATA 874 627 876 627 Model Rated delivery (@ 40°C rise) litres / min 16.7 Recovery (@ 25°C rise) litres / min 27 kg 24 Mass Empty (unpackaged) Hourly Gas Consumption (MJ) Min Gas Pressure (kPa) minimum maximum Max Gas Pressure (kPa) Model 627 627 627 627 627 Natural Propane 205 205 1.13 2.75 0.193 0.277 0.905 1.540 3.50 3.50 Gas Details Test Point Gas Pressure (kPa) Model numbers: N = Natural, P = Propane.
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 56
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.
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. Warning: Temperature controllers must not be fitted to this water heater (874 series) if it is installed as an in-series gas booster with a solar water heater system because water at a temperature much higher than the controller setting can be delivered.
EZ-LINK SYSTEM DUAL INSTALLATION The EZ-Link™ system is designed to electronically control two continuous flow gas water heaters and have them operate as one. One or both water heaters may be in operation, depending upon the hot water demand. The second water heater will only operate when the hot water demand exceeds the capacity of the first water heater to supply. The EZ-Link system is suitable for installation with Rheem 874 and 876 series 627 model continuous flow gas water heaters.
EZ-LINK SYSTEM DUAL INSTALLATION DUAL INSTALLATION The two continuous flow water heaters can be installed side by side with minimal clearance between them. The AGA has approved the installation of two of this model water heater with an exemption from the 300 mm minimum clearance requirements between flue terminals, as stated in AS/NZS 5601, clause 5.13.6.5 and AS/NZS 5601.1, clause 6.9.3. Install two continuous flow water heaters of the same model in a parallel plumbing arrangement.
EZ-LINK SYSTEM DUAL INSTALLATION EZ-LINK CABLE CONNECTION The references in steps 5 to 8 are to the ‘Control Board with Ez-Link Connection’ diagram on page 63. To connect the Ez-Link cable to the water heaters: 2. Switch off the electrical supply at the power outlet to each water heater. 3. Remove the screws holding the front panel to the jacket on each water heater. 4. Gently disengage the front panel and pull forward to remove from ON each water heater. 5.
88 °C EZ-LINK SYSTEM DUAL INSTALLATION X 10L 11. Switch on the electrical supply at the power outlet to the water heater. 12. Turn on the controller by pressing the on / off ( ) button, if one is installed. The on / off operating light and the priority light will both glow. 13. Open a hot tap. The first water heater and depending upon the flow from the hot tap, the second water heater will operate automatically. 14. Increase the hot water flow by turning on an additional hot tap(s).
EZ-LINK SYSTEM DUAL INSTALLATION Typical Two Unit Manifold with Ez-Link Connection 64
INSTALLATION – CONTROLLERS CONTROLLERS The Rheem 874 and 876 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 PN 299854) or the Bathroom1 Deluxe controller (Rheem PN 299862) 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: 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. 4. 5. Remove the test point screw and washer from the test point orifice. Connect the manometer. WASHER Open the gas isolation valve fully at the gas inlet to the water heater.
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. 1. Close any hot taps and ensure the burners are not operating. 2.
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 clear the error code (refer to “Clearing Error Code” on page 75) 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: 874 series 60°C 876 series 50°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 874 series 876 series Kitchen controller connected 60°C 50°C Bathroom controller only connected 50°C 50°C It is usually not necessary to adjust the fa
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 876 series 38°C, 40°C, 42°C, 43°C, 45°C, 50°C It is necessary to have the electrical supply to the water heater switched on during stages of checking or adjusting the preset outlet temperature setting procedure.
COMMISSIONING OUTLET TEMPERATURE COMPENSATION ADJUSTMENT – 876 SERIES The maximum outlet temperature of an 876 series water heater may be adjusted to compensate for temperature losses in the pipe work between the water heater outlet and sanitary fixtures. Warnings After adjustment the water temperature MUST NOT exceed 50°C from the first tap in the hot water pipe work after the water heater used for personal hygiene purposes, such as in a bathroom or ensuite.
6. Switch off the electrical supply at the power outlet to the water heater. 7. Remove the screws holding the front panel to the jacket. 8. Gently disengage the front panel and pull forward to remove from the water heater. ON 9. Switch on the electrical supply at the power outlet to the water heater. 3 2 1 Note: Wait ten (10) seconds for the electronic system to initialise. 4 OFF Turn off the hot tap. DIP1 5.
COMMISSIONING TO TURN OFF THE WATER HEATER 88 °C X 10L 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 on / off operating light will go out and the priority light, if it is on, will go out. Switch off the electrical supply at the power outlet to the water heater (refer to note below).
DRAINING THE WATER HEATER To drain the water heater: Turn off the water heater (refer to “Turn Off The Water Heater” on page 80). 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.
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RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA ONLY CONTINUOUS FLOW GAS WATER HEATERS 874, 876 SERIES 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 continuous flow gas water heaters, manufactured by Paloma Co., Ltd., a world leader in water heater technology and manufacture. 1.
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA ONLY CONTINUOUS FLOW GAS WATER HEATERS 874, 876 SERIES 627 MODELS 3. WHAT IS COVERED BY THE RHEEM WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.
