Installation and User Manual REU-VRM1120WD-E - Infinity 11e REU-VRM1720WD-E - Infinity 17e Continuous Flow Water Heater Important. Read these instructions carefully before attempting installation or use of this appliance. All work must be carried out by competent persons.
The Rinnai Infinity range of water heaters, when correctly installed, comply with the requirements of the United Kingdom Water Regulations / Byelaws (Scotland). These Products can be found listed in the Water Fittings and Materials Directory. The Rinnai Infinity water heaters are CE Marked as allowed by Technigas.
CONTENTS CONTENTS……………………………………………………………………………..…………………3 USER INSTRUCTIONS..................................................................................................................4 FEATURES AND BENEFITS…………………………………………..……………..………….5 IMPORTANT INFORMATION…………………………………………………...……..………..6 OPERATION WITHOUT REMOTES…………………………………………………….……8 STATUS MONITOR.............................................................................................................
USER INSTRUCTIONS The following instructions are designed for the user of the water heater. The user may not install or adjust the appliance in any way that requires the removal of the front cover of the unit. To remove the front cover of the unit you must be certified competent to do so. Information for the Installer is given on page 17. All work done on this appliance must be done by a qualified gas engineer.
FEATURES AND BENEFITS Congratulations on purchasing the Technologically Advanced, Temperature Controlled, Rinnai Hot Water System. Rinnai water heaters will NEVER RUN OUT of hot water. As long as electricity, water, and gas supplies are connected, hot water is available when hot water taps are open. Built into the main micro-processor is the facility to LIMIT THE MAXIMUM TEMPERATURE of the hot water supplied. The water temperature may be set to various temperatures.
IMPORTANT INFORMATION Excessively hot water is dangerous, especially for young children and the infirm. The water heater allows you to control the temperature of your hot water to safe levels. Water temperature over 50ºC can cause severe burns instantly or even death from scalding. Children, disabled and the elderly are at the highest risk of being scalded by excessively hot water. Always test the temperature of the water before bathing or showering.
IMPORTANT INFORMATION Always check water temperature before use. Hot water may go cold without warning at very low water flows (less than 3 l/min). OFF! Refer to warning about hot water on page 6 for important safety information. The delivered water temperature is controlled automatically. The water from the hot tap may be reduced after the temperature shown on the remote control is raised. The water flow may also vary with the temperature of the incoming water supply.
OPERATION WITHOUT REMOTES Rinnai Infinity products have no pilot light and operate automatically as soon as water flow is sensed. The burner ignites with electronic ignition and the flame extinguishes as soon as water flowing through the appliance stops. Turn On by opening the hot water tap OFF! HOT NOTE CAUTION COLD OFF! The Rinnai Infinity range of water heaters are factory preset to a temperature of 55°C Other limits, lower or higher, are available on request.
TEMPERATURE CONTROLS The purpose of a Temperature Controller is to enable the user to have localised control over the hot water supply. Used correctly, the hot water unit will supply hot water at the temperature selected, even when the water flow is varied, or when more than one tap is used. Adjustments to the operation of your hot water unit can be made with any of the Temperature Controllers. Each Temperature Controller can be individually programmed.
TEMPERATURE CONTROLS Remote temperature controllers provide control over the water temperature. Rinnai water heaters can be operated with 1, 2, 3, 4 or no temperature controllers. NOTE Each time a button is pressed, a BEEP will sound. The BEEP sound can be muted by depressing the Temperature Controller Up and Down buttons simultaneously for more than 3 seconds. This can be done for each Temperature Controller. To return to original settings, repeat this step.
TEMPERATURE CONTROLS Using the Temperature Controllers Adjusting Temperature Press the ON/OFF button on a temperature controller after making sure that water is not flowing. Simply press the Hot Water Temperature Up or Down arrow button The system will become active, the temperature will default to 40°C and the controller that turned the system on will have priority. HOTTER COOLER The temperature setting on the controller will light up.
TEMPERATURE CONTROLS Using 2 or more universal Temperature Controllers. Switching the system ON. The hot water system and all controllers can be switched ON and OFF from any controller by pressing the ON/OFF button as shown. When the system is turned ON the water temperature display will be lit. During normal operation the system is left ON. Do not push the ON/OFF button when water is running. Using hot water. Ensure the system is switched On by verifying the temperature display is lit.
TEMPERATURE CONTROLS Do not push the ON/OFF button on the Master controller after transferring priority of temperature selection to a Secondary controller as the system will shut down. Temperature priority cannot be switched to another controller when the water is flowing through the water heater.
ERROR MESSAGES Rinnai water heaters have the ability to check their own operation continuously. If a fault occurs, an error code will flash on the digital display (and on the Status Monitor) if you have temperature controllers installed. This assists with diagnosing the fault, and may enable you to overcome a problem without a service call. Please quote the code displayed when enquiring about service.
ERROR MESSAGES Troubleshooting without controllers If you have not installed temperature controllers and experience the following symptoms, please carry out the suggestions below. If symptoms continue, please contact Rinnai for advice. NOTE: Faults caused by insufficient gas/water supply or gas/water quality and installation errors are not covered by the manufacturer‟s warranty. Fault Remedy Heater does not attempt Check the power is on at the heater. to start at all.
UK CARING AND MAINTENANCE Maintenance Even if there does not seem to be a problem with the water heater it is required in the UK that all gas appliances are serviced every year by a certified gas engineer. This is to ensure continued safety of the gas appliance. If you need a recommended service engineer contact Rinnai or your supplier. For more detailed instructions on maintenance contact Rinnai or your supplier.
INSTALLATION INSTRUCTIONS STOP To go beyond this point in the manual you must be a registered gas engineer. Do not attempt to install this appliance if you are not qualified. This can void the warranty. If the information in this manual is not followed exactly a fire or explosion could result. This manual must be read in its entirety before installing the appliance. If you are unsure of any point contact Rinnai or your supplier.
UK INSTALLATION INSTRUCTIONS IMPORTANT INFORMATION This appliance may only be installed by someone certified competent to do so. At the time of printing the only people deemed competent to install this appliance are those that are Gas Safe registered for this type of appliance in this type of location who have a current ACS certificate. 1. Gas safety (Installation & Use) regulations 1998 are the „Rules in force‟.
UNPACKING RINNAI WATER HEATER After unpacking the appliance check for damage, if the heater is damaged contact your supplier immediately. Do not install a damaged appliance before checking with your supplier. A heater accessories pack is inside the carton. One remote control is supplied with the Infinity range of water heaters. Remote controllers are not supplied with the Rinnai HD range of heaters because they are commercial units.
OPERATION Infinity REU-VRM1120WD REU-VRM1720WD - 20
MAIN COMPONENTS Infinity REU-VRM1120WD - REU-VRM1720WD 21
MAIN COMPONENTS 1. Gas Control Unit 1.1 Modulating Valve This device is used by the PCB to adjust the volume of gas to the burner in proportion to the volumetric flow rate of water in order to maintain a supply of constant temperature hot water amid changes in water flow rates and incoming temperatures. 1.2 Change-over Solenoid Valves Additional solenoid valves are included to section the burner and stage the control in 4 steps.
INSTALLATION INSTRUCTIONS External Models The external Rinnai Infinity water heaters are designed for „Outdoor‟ Installation only. As such, it must be located in an above ground, open air situation with natural ventilation, without stagnant areas, where products of combustion are rapidly dispersed by wind and natural convection. The exhaust slot on the front should follow the same location guidelines as a balanced flue terminal.
INSTALLATION INSTRUCTIONS Clearance The appliance must be in an accessible location. Sufficient clearances shall allow access to, and removal of, all serviceable components. The following clearances should be followed.
UK INSTALLATION INSTRUCTIONS Water Connection For all closed systems (with flow and return or tank) the system must incorporate an unvented kit with the components shown below. The safety relieve valve must discharge safely into a suitable drain via a tundish.
UK FLUE REQUIREMENTS Terminal Position Distance (mm) A Directly below an opening, air brick, opening windows, etc. 300 B Above an opening, air brick , opening window, etc. 300 C Horizontally to an opening, air brick , opening window, etc. 300 D Below gutters, soil pipes or drain pipes. 75 E Below eaves. 200 F Below balconies or car port roof. 200 G From a vertical drain pipe or soil pipe. 150 H From an internal or external corner. 200 I Above ground, roof or balcony level.
TEMPERATURE CONTROLS General Information Commercial installations do not generally have controllers installed. These installations usually have one permanent set temperature that is constant at all times. The public should not have access to alter the temperature in these situations. These installations do not require controllers as the temperature can be set by a series of dip switches on the PCB. Exceptions to this are the following: 1.
TEMPERATURE CONTROLS Universal Temperature Controller - MC-91 1. Determine the most suitable position for the temperature controller. 2. Drill 3 holes in the wall (Fig.1), one for the cable and two for the securing screws. Fit wall plugs if needed and ensure controller is level. 3. Run the cable provided through the hole in the wall ensuring that the end fitted with the connector is nearest the controller (Fig.2). 4. Remove the face plate from the controller using a flat screwdriver (Fig.3).
TESTING 1.Purge gas, hot water and cold water supply lines before making the final connection of the water heater. Swarf in either the gas or water supplies may cause damage. 2.Turn on gas and cold water supplies. 3.Test for water leaks and gas escapes near the unit. 4.Isolate gas and electric supply. Remove test point screw located on the inlet gas pipework below the heater and attach pressure gauge. 5.Turn the power on at the switch and turn on gas.
GAS PRESSURE SETTING The working gas pressure on the water heater is electronically controlled and factory set. Under normal circumstances it does not require adjustment during installation. The pressure should be checked when the unit is installed and each time it is serviced to ensure that it is correct. Contact Rinnai before attempting to alter the gas pressure if you are unsure of what to do. Incorrect adjustment can void the warranty. 1. Turn 'OFF' the gas supply. 2. Turn 'OFF' 230V power supply.
GAS PRESSURE SETTING 10. Set the Rinnai Infinity to 'Forced Low' combustion by setting No.7 dip switch of SW1 to 'ON'. (Fig. 3) 11. Check the burner test point operating pressure. LOW GAS 11e 17e Fig. 3 NG G20 1.68 1.68 LPG G31 1.55 1.55 (pressures in mbar) 12. Remove rubber access plug and adjust the regulator screw on the modulating valve (Fig. 4) as required to the pressure above. Replace rubber access plug and seal it shut. Fig. 4 13.
DIP SWITCH SETTING Dip Switches Explained OFF OFF ON ON Dip Switch Positions Explained SW1 1 2 3 4 5 6 7 8 - Computer programming Temperature Temperature Temperature Temperature Warm Water Switch Forced Combustion Forced Combustion SW2 1 2 3 4 5 6 - Gas Type Gas Type Model Choice Model Choice Model Choice Commercial Setting COMPUTER PROGRAMMING Dip SW1 of SW1 is always off OFF ON SW1 1 off WARM WATER SWITCH If activated reduces the min flowrate to light OFF ON SW1 Infinity when inlet water 6 tem
DIP SWITCH SETTING Infinity REU-VRM1120WD - REU-VRM1720WD - Temperatures - with or without remotes connected OFF ON SW1 2 3 4 5 40°C OFF ON SW1 2 3 4 5 55°C (Factory Setting) OFF ON SW1 2 3 4 5 42°C OFF ON SW1 2 3 4 5 50°C OFF ON SW1 2 3 4 5 60°C OFF ON SW1 2 3 4 5 65°C OFF ON SW1 2 3 4 5 75°C 33
DIMENSIONS Infinity REU-VRM1120WD — REU-VRM1720WD 34
TECHNICAL DETAILS Infinity Model Inf. REU-VRM1120WD Inf. REU-VRM1720WD External External G20 Nat Gas Press Low 1.68 1.68 mbar G20 Nat Gas Press High 3.95 9.26 mbar G25 Nat Gas Press Low 2.21 2.21 mbar G25 Nat Gas Press High 5.54 13.00 mbar G31 Propane / G30 Butane Press Low 1.55 / 1.55 1.55 / 1.55 mbar G31 Propane / G30 Butane Press High 3.91 / 3.91 8.62 / 7.59 mbar Direct Forced Exhaust Direct Forced Exhaust Installation Flue System Temp.
FLOW CHART Infinity REU-VRM1120WD - REU-VRM1720WD 36
WIRING DIAGRAM Infinity REU-VRM1120WD - REU-VRM1720WD 37
DIAGNOSTIC POINTS Infinity REU-VRM1120WD - REU-VRM1720WD 38
WATER FLOW CHARACTERISTICS Infinity REU-VRM1120WD - REU-VRM1720WD 39
LETTER OF COMPLIANCE 40
CE CERTIFICATE 41
COMMISSIONING CHECK LIST 42
UK WARRANTY As the purchaser of this high quality Rinnai Water Heater you are provided with the following conditional warranty. Standard Use Heat Exchanger All Other Parts Parts Labour Parts Labour 3 Years 1 Year 3 Years 1 Year 5 Years 1 Year 5 Years 1 Year Infinity 11e / 17e Commercial Use Infinity 11e / 17e Definition of Standard Use. The warranty period allocated under Standard Use is based on Domestic and Light Commercial hot water usage.
UK WARRANTY WHAT IS COVERED? This Warranty covers any defects in materials or workmanship when the product is installed and operated according to Rinnai installation instructions, subject to the terms within this limited warranty document. This Warranty applies only to products that are installed by a registered gas engineer. Improper installation may void this Warranty.
CONTACT UK LTD. 9 Christleton Court Manor Park Runcorn Cheshire WA7 1ST Tel. 01928 531870 Fax. 01928 531880 E-mail. info@rinnaiuk.com Web. www.rinnaiuk.
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