Rinnai REU-VRM1120WD-E Installation And User Manual

Continuous flow water heater

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Service manual (36 pages)

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Page 1 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.
Page 2 Last revision: 00/00/2010 Quality System Standard ISO 9001 - 2000 The Design, Development, and Manufacture of Gas Water Heating Appliances done under Rinnai’s Quality Management System is certified under the Quality Management System Standard ISO 9001. Registration Number JQ0003D Registered since: February 1994...
Page 3: Table Of Contents
USER INSTRUCTIONS........................4 FEATURES AND BENEFITS…………………………………………..……………..………….5 IMPORTANT INFORMATION…………………………………………………...……..………..6 OPERATION WITHOUT REMOTES…………………………………………………….……8 STATUS MONITOR......................8 TEMPERATURE CONTROLS…………………………………………………….…………..…9 ERROR MESSAGES…………………………………………………….……………………14 RESTARTING THE RINNAI WATER HEATER…………………………………………….15 UK CARING AND MAINTENANCE…...………………………………………………………16 INSTALLATION INSTRUCTIONS………………………………….……………………..…………17 UK INSTALLATION INSTRUCTIONS………………………………………………………….18 UNPACKING RINNAI WATER HEATER……………..…………………………..…………...19 OPERATION ....…………………………………..……...……………………..………...19 MAIN COMPONENTS…………………………………………………………..……………..21 INSTALLATION INSTRUCTIONS…………………………………………………….………...23 UK INSTALLATION INSTRUCTIONS……………………………………………….………...25...
Page 4: User Instructions
The user must not use the appliance in any way that it was not meant to be used. The user may only use the heater as detailed in the User portion of this manual. Interference with a sealed component is not permitted. In case of defect parts only use genuine Rinnai components for replacement.
Page 5: Features And Benefits
IGNITION IS ELECTRONIC, so there is no pilot light. When the hot water tap is off, no gas is used. The Rinnai Infinity water heaters have a built in Status Monitor on the front of the unit to display error codes and run condition. Up to four external temperature controllers can be mounted remotely from the heater.
Page 6: Important Information
Do make sure that the tap is turned off tightly. Consider reducing the tempera- ture of the water supplied to the Do consider setting your Rinnai Water hot tap to 50°C. Heater at a maximum temperature of 50°C. This approach can be extremely...
Page 7 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. If freezing temperatures are expected, turn off The delivered water temperature is controlled automatically.
Page 8: Operation Without Remotes
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...
Page 9: Temperature Controls
Controllers. Each Temperature Controller can be individually programmed. Up to 3 universal can be fitted with Rinnai water heaters. Universal Controllers allow temperature selection only and one comes as standard with the water heater. Deluxe Temperature Controllers are available as an optional extra.
Page 10 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. 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.
Page 11 The Digital Monitor will go out. If hot water taps are opened when the Rinnai Infinity is off, cold water will flow from the taps. If the system is to be left off over the winter be sure to drain it down if there is a possibility of freezing temperatures.
Page 12 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.
Page 13 TEMPERATURE CONTROLS Do not push the ON/OFF button on the Master Temperature priority cannot be switched to controller after transferring priority another controller when the water is flowing temperature selection to a Secondary controller through the water heater. as the system will shut down. Controller 1 Controller 2 in use...
Page 14: Error Messages
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.
Page 15: Restarting The Rinnai Water Heater
If following the above procedure does not reset the heater switch it on and off at its main supply, and then go through these steps again. If heater is still not working call your local service agent or Rinnai for...
Page 16: Uk Caring And Maintenance
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.
Page 17: Installation Instructions
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 ap- pliance. If you are unsure of any point contact Rinnai or your supplier.
Page 18: Uk Installation Instructions
It is the installer‟s responsibility to ensure that the unit has been installed to all current requirements. Please be sure that you are fully aware of your obligations and responsibilities under these regulations. In case of defect parts only use genuine Rinnai components for replacement.
Page 19: Unpacking Rinnai Water Heater
HD range of heaters because they are commercial units. If you require controllers in commercial situations they are compatible with the HD range and available from Rinnai UK or your supplier. Check that the appliance supplied is the correct gas type and pressure for the installation.
Page 20 OPERATION Infinity REU-VRM1120WD - REU-VRM1720WD -...
Page 21: Main Components
MAIN COMPONENTS Infinity REU-VRM1120WD - REU-VRM1720WD...
Page 22 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.
Page 23: Installation Instructions
Rinnai can not be held responsible for any consequential water damage so it may be necessary to fit a drain pan under the unit.
Page 24 See the pressure chart on page 39. Contact Rinnai or your supplier for 'gravity fed' or 'low pressure' hot water installations. Water pipe sizing and layout should be designed correctly to ensure the given water flows from the appliance are available.
Page 25: Uk Installation Instructions
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.
Page 26: Uk Flue Requirements
UK FLUE REQUIREMENTS Terminal Position Distance (mm) Directly below an opening, air brick, opening windows, etc. Above an opening, air brick , opening window, etc. Horizontally to an opening, air brick , opening window, etc. Below gutters, soil pipes or drain pipes. Below eaves.
Page 27: Temperature Controls
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.
Page 28 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.
Page 29: Testing
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.
Page 30: Gas Pressure Setting
Contact Rinnai before attempting to alter the gas pressure if you are unsure of what to do. Incorrect adjustment can void the warranty.
Page 31 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. Fig. 3 1.68 1.68 1.55 1.55 (pressures in mbar) 12.
Page 32: Dip Switch Setting
DIP SWITCH SETTING Dip Switches Explained Dip Switch Positions Explained COMPUTER PROGRAMMING Computer programming Dip SW1 of SW1 is always off Temperature ON SW1 Temperature Temperature Temperature Warm Water Switch WARM WATER SWITCH Forced Combustion If activated reduces the min flowrate to light ON SW1 Infinity when inlet water Forced Combustion temperature is close to...
Page 33 DIP SWITCH SETTING Infinity REU-VRM1120WD - REU-VRM1720WD - Temperatures - with or without remotes connected OFF ON SW1 OFF ON SW1 OFF ON SW1 40°C 42°C 50°C OFF ON SW1 OFF ON SW1 OFF ON SW1 55°C 60°C 65°C (Factory Setting) OFF ON SW1 75°C...
Page 34: Dimensions
DIMENSIONS Infinity REU-VRM1120WD — REU-VRM1720WD...
Page 35: Technical Details
TECHNICAL DETAILS Infinity Model Inf. REU-VRM1120WD Inf. REU-VRM1720WD Units Installation 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...
Page 36: Flow Chart
FLOW CHART Infinity REU-VRM1120WD - REU-VRM1720WD...
Page 37: Wiring Diagram
WIRING DIAGRAM Infinity REU-VRM1120WD - REU-VRM1720WD...
Page 38: Diagnostic Points
DIAGNOSTIC POINTS Infinity REU-VRM1120WD - REU-VRM1720WD...
Page 39: Water Flow Characteristics
WATER FLOW CHARACTERISTICS Infinity REU-VRM1120WD - REU-VRM1720WD...
Page 40: Letter Of Compliance
LETTER OF COMPLIANCE...
Page 41: Ce Certificate
CE CERTIFICATE...
Page 42: Commissioning Checklist
COMMISSIONING CHECK LIST...
Page 43: Uk Warranty
UK WARRANTY As the purchaser of this high quality Rinnai Water Heater you are provided with the following conditional warranty. Heat Exchanger All Other Parts Parts Labour Parts Labour 3 Years 1 Year 3 Years 1 Year Standard Use Infinity 11e / 17e...
Page 44 WHAT WILL RINNAI DO? Rinnai will repair or replace the product or any part or component that is defective in materials or workmanship, except as set forth below: All repairs must be performed using genuine Rinnai parts. All repairs or replacements must be performed by a registered gas engineer.
Page 45: Contact
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.com HEATER DETAILS Model Number _____________________________________________ Serial Number _____________________________________________ Date of Purchase _____________________________________________...
Page 46 U298-1192(00) v3. 10/07/26...

This manual is also suitable for:

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Rinnai REU-VRM1120WD-E Installation And User Manual

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