Page 2 - TM Trademark of Rheem Australia Pty Ltd., or Rheem New Zealand Limited.; DO NOT
An electronic copy of these Owner’s Guide and Installation Instructions can be downloaded from rheem.com.au and rheem.co.nz. Rheem Australia Pty Ltd and Rheem New Zealand Limited are the suppliers of the Rheem range of continuous flow gas water heaters, manufactured in Japan by Paloma Co., Ltd., a w...
Page 3 - CONTENTS; HOUSEHOLDER; This booklet contains important information about your
3 CONTENTS HOUSEHOLDER This booklet contains important information about your new water heater, including terms of the Rheem warranty. We recommend you read pages 7 to 48, and the terms of the Rheem warranty on pages 4 to 6. The other pages are intended for the installer but may be of interest. Warr...
Page 4 - THE RHEEM WARRANTY – GENERAL; TERMS OF THE RHEEM WARRANTY AND EXCLUSIONS TO IT
4 RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA AND NEW ZEALAND ONLY 874, 876 SERIES 812, 816, T16, 820, 826, T26 MODELS 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...
Page 5 - WHAT IS COVERED BY THE RHEEM WARRANTY
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA AND NEW ZEALAND ONLY 5 874, 876 SERIES 812, 816, T16, 820, 826, T26 MODELS f) Faulty plumbing or faulty gas or power supply. g) Failure to maintain the water heater in accordance with the Owner's Guide and Installation Instructions. h) Tran...
Page 6 - ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY
RHEEM CONTINUOUS FLOW GAS WATER HEATER WARRANTY – AUSTRALIA AND NEW ZEALAND ONLY 6 874, 876 SERIES 812, 816, T16, 820, 826, T26 MODELS 4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY 4.1 To be entitled to make a claim under this warranty you need to: a) Be the owner of the water heater or have co...
Page 7 - SAFETY AND WARNINGS; must not; “General Maintenance”; aerosols
7 SAFETY, WARNINGS, INSTALLATION NOTES It is important you read the following safety and warnings information. SAFETY AND WARNINGS 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 intende...
Page 8 - INSTALLATION NOTES; Mains pressure water supply
SAFETY, WARNINGS, INSTALLATION NOTES 8 Do not use Propane / Butane gas mixtures in a Propane model. A Propane model is designed to operate on Propane only. The use of Propane / Butane mixture, such as automotive LP gas fuel, in a Propane model is unsafe and can cause damage to the water heater. No...
Page 9 - ABOUT YOUR WATER HEATER; WATER HEATER APPLICATION; must not; WATER HEATER OPERATION; Note
9 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 ha...
Page 10 - HOW HOT SHOULD THE WATER BE?; Australia; HOTTER WATER INCREASES THE RISK OF SCALD INJURY
ABOUT YOUR WATER HEATER 10 HOW HOT SHOULD THE WATER BE? If a controller or EZiSET system is not installed, the water heater heats the water to the preset outlet temperature setting. The factory preset outlet temperature setting is: 874 series 60°C – AU 55°C – NZ 876 series 50°C Note: The preset ...
Page 11 - GAS BOOSTING FOR A SOLAR WATER HEATER; Notes; “Terms of the Rheem Warranty”
ABOUT YOUR WATER HEATER 11 GAS BOOSTING FOR A SOLAR WATER HEATER The 874 series water heater may be installed as an in-series gas booster to 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 fo...
Page 12 - GENERAL MAINTENANCE; Warning
ABOUT YOUR WATER HEATER 12 GENERAL MAINTENANCE General maintenance can be performed by the dwelling occupant. It is recommended general maintenance be conducted every six (6) months or more regularly as required. Switch off the electrical supply at the power outlet to the water heater prior to perfo...
Page 13 - TO TURN OFF THE WATER HEATER
ABOUT YOUR WATER HEATER 13 TO TURN OFF THE WATER HEATER If it is necessary to turn off the water heater: Turn off the controller(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 electrica...
Page 14 - CIRCULATED HOT WATER FLOW AND RETURN SYSTEM
ABOUT YOUR WATER HEATER 14 CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Rheem 874 series 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 55 for further information an...
Page 15 - TEMPERATURE CONTROL; CONTROLLERS; Standard Controllers; Temperature controllers; be fitted to this water heater (874 series) if it is installed as an; must be; disconnected and removed.
15 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 heat...
Page 16 - TEMPERATURE CONTROL – STANDARD; STANDARD CONTROLLER FUNCTIONS
16 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...
Page 17 - STANDARD CONTROLLER; operating light and; water volume; symbol are on the Kitchen
TEMPERATURE CONTROL – STANDARD 17 STANDARD CONTROLLER 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. This sound can be turned off to p...
Page 18 - TEMPERATURE SETTINGS
TEMPERATURE CONTROL – STANDARD 18 TEMPERATURE SETTINGS – STANDARD CONTROLLER The temperature settings of each type of controller are: Bathroom 1 & 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 50°C on an 876 se...
Page 19 - TEMPERATURE ADJUSTMENT
TEMPERATURE CONTROL – STANDARD 19 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 th...
Page 20 - KITCHEN CONTROLLER; Notes on the Kitchen controller:; The controller cannot be turned on whilst a hot tap is open.
TEMPERATURE CONTROL – STANDARD 20 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 – AU ...
Page 21 - notes on the Kitchen controller; Turn on the Kitchen controller; “Temperature Adjustment – Standard; Turn off the Kitchen controller
TEMPERATURE CONTROL – STANDARD 21 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 the notes on the Kitchen cont...
Page 22 - BATHROOM CONTROLLERS; Notes on the Bathroom controllers:; Bathroom Controller
TEMPERATURE CONTROL – STANDARD 22 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 s...
Page 23 - Turn on the Bathroom controller; Refer to; Open the hot tap; The in use light will glow on all controllers.; Close the hot tap; Refer to the; warning; in the notes on page 22.
TEMPERATURE CONTROL – STANDARD 23 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 22. 2. Turn o...
Page 24 - WATER VOLUME FUNCTION; It does not stop either the flow of or the heating of water.; notes on the water volume; Turn on the water volume function
TEMPERATURE CONTROL – STANDARD 24 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 i...
Page 25 - Turn off the alarm; “Silencing A
TEMPERATURE CONTROL – STANDARD 25 5. Turn off the alarm Press the water volume ( ) button to turn off the alarm. The water volume operating light goes out and 0 x 10L is displayed momentarily on the controller. The temperature setting of the controller with priority is then displayed. 6. Close the...
Page 26 - TEMPERATURE CONTROL – DELUXE; DELUXE CONTROLLER FUNCTIONS
26 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 c...
Page 27 - “Bath-Fill Function”
TEMPERATURE CONTROL – DELUXE 27 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 36) or when the b...
Page 28 - VOICE PROMPT AND OPERATING TONE; Voice Prompt
TEMPERATURE CONTROL – DELUXE 28 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 ope...
Page 29 - Adjusting the Volume of the Voice Prompt and Operating Tone; Turn off all Deluxe controllers.; To Call for Assistance; The voice prompt will sound on all Deluxe controllers,; “assistance required,
TEMPERATURE CONTROL – DELUXE 29 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 vol...
Page 30 - Temperature settings; “How Hot Should The Water Be?”
TEMPERATURE CONTROL – DELUXE 30 TEMPERATURE SETTINGS – DELUXE CONTROLLERS The temperature settings of each type of Deluxe controller are: Bathroom 1 & 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 * limite...
Page 32 - Notes on the Kitchen Deluxe controller:; The Deluxe controller cannot be turned on whilst a hot tap is open.
TEMPERATURE CONTROL – DELUXE 32 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 – ...
Page 33 - Turn off the Bathroom Deluxe controller(s); Refer to the notes on the; Turn on the Kitchen Deluxe controller; “hot water temperature has been increased”; Turn off the Kitchen Deluxe controller; Turn off the Kitchen Deluxe controller after hot; Important; note for Bathroom Deluxe controllers on page 34.; “hot water temperature
TEMPERATURE CONTROL – DELUXE 33 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. Refer to the notes ...
Page 34 - Notes on the Bathroom Deluxe controllers:; Bathroom Deluxe; front cover
TEMPERATURE CONTROL – DELUXE 34 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 87...
Page 35 - Turn on the Bathroom Deluxe controller; The operating light will glow on all Deluxe controllers.; in the notes on page 34.
TEMPERATURE CONTROL – DELUXE 35 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. Refer to the notes on th...
Page 36 - BATH FILL FUNCTION
TEMPERATURE CONTROL – DELUXE 36 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 ...
Page 37 - Close the front panel on the Deluxe controller.; “please ensure the bath hot water tap is turned off”
TEMPERATURE CONTROL – DELUXE 37 5. Close the front panel on the Deluxe controller. 6. Turn on the Bath Fill function Press the bath fill ( ) button. On all Deluxe controllers: The bath fill operating light will glow. The bath fill temperature setting will appear on the temperature display pane...
Page 38 - Bath Fill Function; Bathroom Deluxe; Pull down the front panel on the Deluxe controller.; “Temperature Adjustment – Deluxe
TEMPERATURE CONTROL – DELUXE 38 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. Refer to the notes on the Bathroom Deluxe controllers on page 34...
Page 39 - Set the bath fill water volume; “bath fill water volume has been decreased”
TEMPERATURE CONTROL – DELUXE 39 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 ...
Page 40 - please turn off the hot water tap; “please ensure the bath hot
TEMPERATURE CONTROL – DELUXE 40 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 If a second hot tap is opened when the Bath Fill function is turned on, the set bath fill ...
Page 41 - Turning Off Bath Fill Function During Its Operation; Step; “bath filling has been stopped,
TEMPERATURE CONTROL – DELUXE 41 Turning Off Bath Fill Function During Its Operation The bath fill operation can be interrupted by pressing the bath fill ( ) button before completion of the bath fill operation. If it is necessary to turn off the Bath Fill function before the operation is complete, du...
Page 42 - Notes on the Bath Fill function:; “please ensure the bath hot water tap is turned off”.
TEMPERATURE CONTROL – DELUXE 42 Notes on the Bath Fill function: 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 ba...
Page 43 - Opening a Second Hot Water Tap During Bath Fill Operation; to finish”; Interrupting Bath Fill Operation; “Turning Off Bath Fill Function During Its Operation”
TEMPERATURE CONTROL – DELUXE 43 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 exp...
Page 44 - During; “hot water temperature has been decreased”; During
TEMPERATURE CONTROL – DELUXE 44 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 38). However, if a Deluxe controller has PRIORITY during the settin...
Page 45 - WATER SUPPLIES; CHANGE OF WATER SUPPLY
45 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 46 - SAVE A SERVICE CALL
46 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 4). NO DISPLAY ON THE CONTROLLER Is the controller turned...
Page 47 - WATER FLOW FLUCTUATES
SAVE A SERVICE CALL 47 WATER FLOW FLUCTUATES Too many 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 temp...
Page 48 - FAN CONTINUES TO RUN AFTER WATER HEATER OPERATION STOPS; Normal operation; “Mains Water Supply”
SAVE A SERVICE CALL 48 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. The fan may run for up to two minutes after the burners extinguish, to prepare for the next ignition. ...
Page 49 - INSTALLATION – WATER HEATER; INSTALLATION STANDARDS; WATER HEATER LOCATION
49 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 51 - INSTALLATION WITHIN A COVERED AREA; with a Flue Terminal Diverter; PIPE COVER; installed in compliance with AS/NZS 5601.1
INSTALLATION – WATER HEATER 51 INSTALLATION WITHIN A COVERED AREA The water heater must be located such that the installation meets the requirements of AS/NZS 5601.1. There must be sufficient ventilation so the water heater has an adequate supply of co mbustion air and the flue products are disperse...
Page 52 - RECESS INSTALLATION; Relief valve setting; Refer to
INSTALLATION – WATER HEATER 52 RECESS INSTALLATION The water heater can be installed recessed into a wall. A recess box ( Rheem AU – Part 299427, NZ – Parts 318994 [recess box enclosure kit] and 318995 [recess box door kit]) is available for such an installation. Refer to the installation instructio...
Page 53 - HOT WATER DELIVERY; Gas Booster for a Solar Water Heater
INSTALLATION – WATER HEATER 53 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 ...
Page 54 - before the non-return valve prior to an; MUST BE; installed on the cold water line to the solar storage tank; AFTER; Two Temperature Zones Using a Temperature Limiting Device
INSTALLATION – WATER HEATER 54 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 56 - Circulated Hot Water Flow and Return
INSTALLATION – WATER HEATER 56 Circulated Hot Water Flow and Return Continuous Flow Gas Water Heater 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 sol...
Page 57 - WATER TEMPERATURE DIAGRAMS; NZ - Kitchen Controller max setting is 55°C
INSTALLATION – WATER HEATER 57 WATER TEMPERATURE DIAGRAMS Note: NZ - Kitchen Controller max setting is 55°C 874 Series - Kitchen and Bathroom Controllers 876 Series – Kitchen and Bathroom Controllers Note: NZ - Kitchen Controller max setting is 55°C 874 Series - Kitchen Controller Only 876 Series - ...
Page 58 - kg; Model numbers; Gas type
INSTALLATION – WATER HEATER 58 TECHNICAL DATA Models Gas type suffix 874812 876812 NF, PF 874816, 874T16 876T16 NF, NFZ, PF, LFZ 874820 876820 NF, NFZ PF, LFZ 874826 - LFZ 874826, 874T26 876826, 876T26 NF, NFZ, PF Water heating capacity @ 40°C rise litres / min 7.5 10 12.5 15.4 16.2 Nominal capacity...
Page 59 - DIMENSIONS
INSTALLATION – WATER HEATER 59 DIMENSIONS – WATER HEATER
Page 62 - TYPICAL INSTALLATION
INSTALLATION – WATER HEATER 62 TYPICAL INSTALLATION – OUTDOOR LOCATION
Page 63 - CONNECTIONS – PLUMBING; CONNECTION SIZES; A non-return valve or stop tap must not be; “Hot Water Delivery”; PIPE SIZES
63 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/NZS 5601.1,...
Page 64 - GAS INLET
CONNECTIONS – PLUMBING 64 IN-SERIES BOOSTER The pipe work between the solar storage tank (if one is installed) and the in-series gas booster has a minimum recommended pipe size of DN20, MUST BE of copper and be fully insulated with a closed cell type insulation or equivalent in accordance with the r...
Page 65 - CONNECTIONS – ELECTRICAL
65 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 ...
Page 66 - WIRING DIAGRAM
CONNECTIONS – ELECTRICAL 66 WIRING DIAGRAM Wiring Diagram – 874, 876 Series 812, 816, T16, 820, 826, T26 Models
Page 67 - EZ LINK SYSTEM DUAL INSTALLATION; The Rheem EZiSET system cannot be used on the 874 series; be fitted to a water heater (874 series) if it is installed as
67 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 ho...
Page 68 - DUAL INSTALLATION; “Installation – Controllers”
EZ LINK SYSTEM DUAL INSTALLATION 68 DUAL INSTALLATION The two water heaters can be installed side by side with minimal clearance between them. Rheem 874 and 876 series 812, 816, T16, 820, 826 and T26 models are certified for installation with an exemption from the 300 mm minimum clearance requiremen...
Page 69 - EZ LINK CABLE CONNECTION; dip switch settings
EZ LINK SYSTEM DUAL INSTALLATION 69 EZ LINK CABLE CONNECTION The references in steps 8 to 11 are to the ‘Control Board with EZ Link Connection’ diagram on page 70. To connect the EZ Link cable to the water heaters: 1. Close any hot taps and ensure the burners on both water heaters are not operating....
Page 70 - The on / off operating light and the priority light will both glow.
EZ LINK SYSTEM DUAL INSTALLATION 70 17. 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. 18. Check to ensure the flow from each connected hot tap is sufficient to operate a water heater. Open each h...
Page 71 - Typical Two Unit Manifold with EZ Link Connection
EZ LINK SYSTEM DUAL INSTALLATION 71 Typical Two Unit Manifold with EZ Link Connection 874 and 876 series 812, 816, T16, 820, 826 and T26 models
Page 72 - INSTALLATION – CONTROLLERS
72 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 wat...
Page 73 - Location; Outdoors. The controllers are not weatherproof.
INSTALLATION – CONTROLLERS 73 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 ...
Page 74 - Wiring installation:; “Connecting the Controller(s) to the Water Heater”
INSTALLATION – CONTROLLERS 74 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 c...
Page 75 - Kitchen Controller (Standard and Deluxe) Installation
INSTALLATION – CONTROLLERS 75 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. Kitchen Controller (S...
Page 76 - BATHROOM 1 AND BATHROOM 2 CONTROLLERS; It is not recommended to have exposed wiring in a bathroom.
INSTALLATION – CONTROLLERS 76 BATHROOM 1 AND BATHROOM 2 CONTROLLERS If only one Bathroom controller is to be installed, the standard Bathroom 1 Controller (Rheem AU - Part 299854, NZ - Part A299851) or the Bathroom 1 Deluxe controller (Rheem AU - Part 299862, NZ - Part A299862) must be used. If two ...
Page 78 - CONNECTING THE CONTROLLER(S) TO THE WATER HEATER
INSTALLATION – CONTROLLERS 78 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 flip down the electrical cover on the underside of the water heater. 3. Draw the...
Page 79 - COMMISSIONING; TO TURN ON THE WATER HEATER; DO NOT; GAS INLET PRESSURE
79 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 va...
Page 80 - Gas Inlet Test Point Pressure
COMMISSIONING 80 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 81 - BURNER GAS PRESSURE; Minimum test point gas pressure
COMMISSIONING 81 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 82 - “Clearing Error Code”; Maximum test point gas pressure; “Minimum test point gas pressure”
COMMISSIONING 82 Notes If the burners extinguish and an 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 82) recommence the procedure from Step 9. If the adjuster bu...
Page 83 - PRESET OUTLET TEMPERATURE SETTING; “Hot Water Delivery”; TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING
COMMISSIONING 83 PRESET OUTLET TEMPERATURE SETTING The factory preset outlet temperature setting of the water heater is: 874 series 60°C – AU, 55°C – NZ 876 series 50°C If a temperature controller is connected to the water heater, this will override the preset outlet temperature setting and the ...
Page 85 - OUTLET TEMPERATURE COMPENSATION ADJUSTMENT; Warnings; “Disconnecting a Temperature Controller(s)”
COMMISSIONING 85 OUTLET TEMPERATURE COMPENSATION ADJUSTMENT The outlet temperature compensation adjustment function is only applicable to: AU – Australian 876 series 812, T16, 820, 826 and T26 model water heaters The maximum outlet temperature may be adjusted to compensate for temperature losses i...
Page 86 - Disconnecting a Temperature Controller(s); “To Check or Adjust the Preset Outlet Temperature; Outlet Temperature Adjustment
COMMISSIONING 86 Disconnecting a Temperature Controller(s) To disconnect the temperature controller(s): 1. Switch off the electrical supply at the power outlet to the water heater. 2. Unscrew and gently flip down the electrical cover on the underside of the water heater. 3. Loosen the terminal screw...
Page 89 - DRAINING THE WATER HEATER; Turn off the water heater (refer to
89 DRAINING THE WATER HEATER To drain the water heater: Turn off the water heater (refer to “Turn Off The Water Heater” on page 88). 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 ...
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