Installation and User Manual Infinity 16e 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.
RINNAI UK WARRANTY As the purchaser of this high quality Rinnai Water Heater you are provided with the following conditional guarantee. Standard Use Heat Exchanger All Other Parts Parts Labour Parts Labour 3 Years 1 Year 3 Years 1 Year 1 Year 1 Year 1 Year 1 Year 16e Commercial Use 16e Definition of Standard Use. The warranty period allocated under Standard Use is based on Domestic and Light Commercial hot water usage.
CONTENTS Rinnai UK Warranty..…………………….. …………………………………………………2 Unpacking Rinnai Water Heater………… …………………………………….…………..4 Installation Instructions…………………… …………………………………………………5 Flue Requirements………………………... …………………………………………………8 Dimensions………………………………… …………………………………………………9 Technical Details..………………………… ……………………………………………….10 Features and Benefits……………………. ……………………………………………….11 Important Information…………………….. ……………………………………………….12 Operation without Remotes……………… ……………………………………………….14 Temperature Controls……………………..
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. • One remote control and heater accessories pack are inside the carton. • Check that the appliance supplied is the correct gas type for the installation. Refer to the data plate located on the left-hand side of the appliance.
INSTALLATION INSTRUCTIONS IMPORTANT INFORMATION 1. Gas safety (Installation & Use) regulations 1998 are the ‘Rules in force’. In your own interest and that of safety, it is law that all gas appliances are installed by competent persons in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. Other persons should NOT attempt to install this equipment. 2. Unpack the appliance and check it carefully.
INSTALLATION INSTRUCTIONS - POSITIONING General Installation Information. External Installations. The Rinnai Infinity 16e is for external mounting only. The unit is classed as a Category A3 flueless appliance as described by CEN CR1749. Although BS 5440 does not relate directly to heaters in this category the rules must be followed when positioning the appliance, especially with regard to other appliances, openings, and boundaries. Figure C.1 from BS5440-1:2000 is provided for your guidance.
INSTALLATION INSTRUCTIONS - CONNECTIONS Water Supply. Where the water supply pressure exceeds 10 bar, an approved pressure reducing device is required at the inlet of the appliance. To achieve the rated flow a minimum water supply pressure of 0.8 bar is required at the appliance inlet. The unit will operate at lower supply pressures but the rated flow will not be achieved. Contact Rinnai for 'gravity fed' or 'low pressure' hot water installations.
FLUE REQUIREMENTS - POSITIONING Dimension Terminal Position Distance A Directly below an opening, air brick, opening windows, etc. 300mm B Above an opening, air brick , opening window, etc. 300mm C Horizontally to an opening, air brick , opening window, etc. 300mm D Below gutters, soil pipes or drain pipes. 75mm E Below eaves. 200mm F Below balconies or car port roof. 200mm G From a vertical drain pipe or soil pipe. 150mm H From an internal or external corner.
DIMENSIONS 9
TECHNICAL DETAILS Infinity Model Infinity 16e Units Installation External Nat Gas Press Low 1.8 mbar Nat Gas Press High 8.8 mbar LPG Press Low 1.8 mbar LPG Press High 8.1 mbar Height 530 mm Width 350 mm Depth 170 mm Weight 15 kg Flue System Forced Exhaust Temp. Range Controllers 37 - 75 deg C Temp. Range without Controllers 37,40,43,50, deg C 55*,65,75 Ignition Direct Electronic Gas Consumption Low Nat Gas 5.2 kW LPG 5.0 kW Nat Gas 34.7 kW LPG 34.
FEATURES AND BENEFITS Congratulations on purchasing the Technologically Advanced, Temperature Controlled, Rinnai Hot Water System. • The Rinnai Infinity 16e NEVER RUNS 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 limited to various maximum 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 out without warning at low water flows. OFF Refer to warning about hot water on page 12 for important safety information. The Infinity 16e controls the water temperature automatically. For high temperatures it may reduce the flow. 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 when installed without Temperature Controllers, the appliance will operate automatically as soon as a hot water tap is opened. 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 Rinnai Infinity water heaters without controllers are factory pre-set to a temperature limit of 55°C.
TEMPERATURE CONTROLS - GENERAL When deciding on the best position for the temperature controls, the following points should be taken into account. • Fit the controls out of reach of children (suggested height from the floor 1.5m.) • Avoid positions where the controllers will become hot. Do not fit them near stoves or ovens, or above radiators or heaters. • If possible, avoid exposure to direct sunlight or positions where bright lights will make the digital display difficult to read.
TEMPERATURE CONTROLS - INSTALLATION Universal Temperature Controller MC-91-1A 1. Determine the most suitable position for the temperature controller. 2. Drill 3 holes in the wall as shown in fig. 1, one for the cable and two for the securing screws. Ensure holes are drilled deep enough. Fit wall plugs if needed. (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.
TEMPERATURE CONTROLS - INSTALLATION Connecting One or Two Controllers 1. Isolate the power supply. 2. Remove the front cover from the Appliance (4 screws) fig. 1. 3. Thread the cable through the cable access hole at the base of the appliance. 4. Connect the spade connectors to the terminals marked "Remote Control" on the printed circuit board (fig.2). Polarity is not important. Either wire colour can be connected to either terminal. 5. Replace cover of the Appliance.
TEMPERATURE CONTROLS The purpose of a Temperature Controller is to enable the user to have complete 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 - OPERATING Remote temperature controllers are a feature that provides control over the water temperature. Rinnai Infinity water heaters can be operated with 1, 2, 3 or no temperature controllers. The Universal controller MC-91-1A comes as standard with all Infinity water heaters. 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.
TEMPERATURE CONTROLS - OPERATING Using 1 Universal Temperature Controller. Press the On/Off button on the temperature controller. The ON indicator will glow on the Temperature Controller. This indicates that the heater is ready to supply hot water when a tap is opened. Adjusting Temperature Simply press the Hot Water Temperature Up or Down arrow button until the desired temperature is displayed on the digital display. To operate the heater, simply turn any hot water tap on.
TEMPERATURE CONTROLS - OPERATING 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 - OPERATING Using High Temperature Display Controllers. You will need to program the Master controller if you want to display and use temperatures over 500C. Programming only needs to be done on Master universal controllers; other universal controllers will not allow this, and Deluxe Kitchen Controllers are supplied already programmed to allow high temperatures. Temperatures in bathrooms should never exceed 500C.
TEMPERATURE CONTROLS - OPERATING To turn off your hot water system. During normal operation the system is left on. To turn the system off simply press the On/Off button on any temperature controller (where fitted). This will shut the water heater down completely including the temperature controller digital display. The on indicator will go out. If hot water taps are opened when the Rinnai Infinity is off, cold water will flow from the taps.
TEMPERATURE CONTROLS - INFORMATION 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 can not be switched to another controller when the water is flowing through the water heater.
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 valve connection inside 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. Perform this procedure only if the unit is not operating correctly and all other possible causes for incorrect operation have been eliminated. Contact Rinnai UK before attempting to alter the gas pressure. Failure to do so could void the warranty. 1. Turn 'OFF' the gas supply. 2. Turn 'OFF' 230V power supply. 3.
GAS PRESSURE SETTING 11.Remove rubber access plug and adjust the regulator screw on the modulating valve (fig. 4) as required to the pressure below. N.G 1.8 mbar Propane 1.8 mbar 12.Lock the regulating screw on the modulating valve. 13.Set the appliance to 'Forced High' combustion by setting both no. 3 and no. 4 dipswitches of the bottom set of switches (SW1) to 'ON'. (fig.5) Ensure maximum water flow. 14.Check the burner test point pressure. 15.
DIP SWITCH SETTING Dip Switch Positions Explained OFF ON SW2 (top) 1 - Gas Type 2 - Temperature 3 - Temperature 4 - Temperature LEGEND: Black Section indicates position of dip switch. OFF ON SW1 (bottom) 1 - Computer Programming 2 - Computer Programming 3 - Combustion 4 Combustion OFF ON OFF ON OFF ON Dip Swiches Explained GAS TYPE LPG NAT GAS OFF ON SW2 1 off 2 3 4 OFF ON SW2 1 on 2 3 4 COMPUTER PROGRAMMING OFF ON SW1 1 2 3 4 - Switches are always in these positions for the Infinity 16e.
DIP SWITCH SETTING Infinity 16e Temperatures - With or Without Remotes off on SW2 1 2 3 4 40 deg C off off off off off on SW2 1 2 3 4 55 deg C on SW2 1 2 3 4 43 deg C on SW2 1 2 3 4 65 deg C 29 on SW2 1 2 3 4 50 deg C on SW2 1 2 3 4 75 deg C
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 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 codes flash. Code Displayed Fault Remedy - Noticeable reduction in water flow Inlet water filter needs to be cleaned.
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. Fault Remedy Heater does not attempt Check the power is on at the heater. to start at all. Check the cold water valve supplying the heater is open. Heater starts then shuts down immediately. Check the power is on.
RESTARTING THE RINNAI WATER HEATER Following a power cut the heaters should be restarted in this manner. Standard system. Single or multiple water heaters without remote controllers. The heaters will automatically reset without any user involvement. Single or multiple water heaters with remote controllers. The heaters will be required to be switched on using the ON/OFF button on a remote controller. Ensure that all taps/water outlets are closed and no water is flowing through heaters.
WIRING DIAGRAM 33
DIAGNOSTIC POINTS Diagnostic Points- To be read in conjunction with the wiring diagram.
SPECIFICATION Model………………………………………………..….......………………………..Infinity 16e Installation…………………………………………...…….…...……. External location only Fuel…………………………………………………..….…..…………...Natural Gas or LPG * Control………………………………………………….…….………...……….…..Modulating Input……………………………………………………..……….……………....5.1 to 34.7 kW Exhaust type………………………………………..……..Forced Draught Direct Exhaust Ignition……………………………………………………………….…………...…..Electronic Burner……………………………………………………...……….…………...Stainless steel Weight…………………………………………………...……….….
SERVICE CONTACT Rinnai 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.
INFINITY 16 e INFINITY 20 e SERVICE MANUAL Rinnai High Capacity Continuous Flow Gas Hot Water System Service Manual Infinity 16e and 20e
The Rinnai Infinity 32e and Heavy Duty 70e water heater, 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 32e water heater is CE Marked for UK and Ireland as allowed by Technigas of Belgium.
Produced by Rinnai Technical Services Department August 2004 - Issue 1. No portion or part of this manual may be copied without prior permission from Rinnai U.K. Rinnai U.K. reserves the right to make modifications and change specifications without notice. WARNING Failure to comply with these instructions may result in serious personal injury or damage to the appliance. ALL WIRING INSIDE THIS APPLIANCE MAY BE AT 230 VOLTS POTENTIAL ALL SERVICE WORK MUST BE CARRIED OUT BY AN AUTHORISED PERSON.
Table of Contents Glossary of Terms and Symbols ................................................................................ iv 1. Introduction ................................................................................................................ 1 2. Specifications ............................................................................................................. 2 3. Water Flow Rates and Pressures ................................................................................ 5 4.
Glossary of Terms and Symbols dB(A) - sound pressure level in decibels, “A” range DC - direct current AC - alternating current WFCD - water flow control device FB - feedback information FF - feedforward information Hz - Hertz IC - integrated circuit kcal/h - kilocalorie per hour kPa - kilopascals LED - light emitting diode L/min - Litres per minute mA - milliamps MJ/h - megajoule per hour mm - millimetres mmH2O - millimetres of water (gauge pressure) OHS - o
1. Introduction The Rinnai V-Series hot water units represents the latest technology in continuous flow, temperature controlled hot water. Features • The Infinity 16e and Infinity 20 NEVER RUNS OUT of hot water. Whilst electricity, water and gas supplies are connected, hot water is available whenever 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 limited to various maximum temperatures.
2.
Infinity 20e 6[RG QH CRRNKCPEG 1RGTCVKQP 'ZJCWUV U[UVGO 6GORGTCVWTG EQPVTQNNGF EQPVKPWQWU HNQY ICU JQV YCVGT U[UVGO 9KVJ YKVJQWV TGOQVG EQPVTQNU OQWPVGF KP MKVEJGP DCVJTQQO GVE (QTEGF (NWG +PHKPKV[ e 4KPPCK OQFGN PWODGT +PUVCNNCVKQP 'ZVGTPCNN[ OQWPVGF &KOGPUKQPU 9KFVJ 㧙 OO *GKIJV 㧙 OO &GRVJ 㧙 OO 9GKIJV MKNQITCOU /CZKOWO /KPKOWO ICU EQPUWORVKQP 0CVWTCN ICU㧦 㨪 /, J 㨪 M9 2TQRCPG ICU㧦 㨪 /, J 㨪 M9 M9 1WVRWV M9 %
Sensors and Safety Devices • Heat Exchanger Thermistor: Measures hot water temperature at heat exchanger outlet. If water temperature reaches a predetermined limit, gas supply is stopped. • Hot Water Delivery Thermistor: Measures hot water temperature at the outlet valve (i.e. the ‘mixed’ temperature). • Flame Rod: Monitors combustion characteristics inside the combustion chamber. If the flame fails, gas supply is stopped.
3. Water Flow Rates and Pressures Water Flows Table 1 shows unmixed and mixed water flow rates and approximate gas consumptions for various temperature rises. The unmixed flow rates are the flow rates available at the given temperature rise directly at the outlet of the water heater. The mixed water flow rates are available at the given temperature rise by mixing hot water from the outlet of the water heater with cold water from the mains supply.
Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W 0.33 0.27 21-160 REU-V2020W -6- 21-160 REU-V2020W 0.19 0.15 18-125 20-125 REU-V1616W Models (All Pre-set Temperatures) L/sec 0.33 0.27 Approx. Min / Max Gas Input (MJ/hour) Temp Rise (º C) 18-125 20-125 Approx. Min / Max Gas L/sec Input (MJ/hour) REU-V1616W Models (All Pre-set Temperatures) 21-160 REU-V2020W - Ext. Temp Rise (º C) 18-125 20-125 REU-V16eW - Ext. Models (All Pre-set Temperatures) Approx.
Water Pressure As seen in the table below a minimum supply pressure of .80 bar is required to operate at the rated flow of 16 L/min. In an actual installation, pressure losses in the plumbing system also need to be considered. 9#6'4 24'5574' 81.7/' 9#6'4 81.7/' . OKP Infinity 20e Infinity 16e 0.75 1.2 1.0 Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W 2.0 9#6'4 24'5574' bar -7- 3.0 4.
4.
20e Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W -9- Issue 1 - 10/10/03 ©Rinnai
5. Remote Controls Remote Controls Remote Controllers are an optional extra. 'Standard' controllers can be fitted. Standard controllers allow temperature selection only. For detailed information regarding controller operation refer to the 'How to use your water heater' booklet supplied with the appliance. Other manufacturers' controllers are NOT compatible with this appliance. 120 MC-91-1A Standard Controller (Model MC-91) Up to 3 Standard Controllers can be fitted to the appliance.
Water Heater and Controller installation configurations "THIS APPLIANCE DELIVERS WATER NOT EXCEEDING 50ºC" 50º C H O T C O L D KITCHEN Temperature controller (optional) LAUNDRY Temperature controller (optional) BATHROOM Temperature controller (optional) G A S Diagram 1.
Connecting Three Controllers 6. Isolate the power supply 7. Remove the front cover from the Appliance (4 screws) fig.1. 8. Cut the spade connectors from 2 of the controller cables to be connected to the appliance (4 spade connectors should be cut off) and discard. Connect the wires from these two cables and terminate into two new spade connectors as shown in fig.3. Spade connectors are available from your local electrical component retailer. 9.
6. Cutaway Diagram 16e Part No. 1 2 3 4 5 6 7 8 9 10 Description Casing Assembly Front Panel Assembly Flue Outlet Overheat Switch Heat Exchanger Thermal Fuses Electrode Flame Rod Main Burner Combustion Chamber Front Plate Assembly Part No. 11 12 13 14 15 16 17 18 19 Description Manifold Assembly Transformer P.C.B.
20e Part No. 1 2 3 4 5 6 7 8 9 10 Description Casing Assembly Front Panel Assembly Flue Outlet Overheat Switch Heat Exchanger Thermal Fuses Electrode Flame Rod Main Burner Combustion Chamber Front Plate Assembly Part No. 11 12 13 14 15 16 17 18 19 Description Manifold Assembly Transformer P.C.B.
7.
8. Operation Principles Hot Water Operation 1. Ignition • • • Activate controllers (if fitted) and open the hot water tap (for full details regarding operation of controllers refer to the ‘How To Use Your Water Heater’ booklet). When water flows through the unit, the water flow sensor rotates and sends an electrical ‘pulse’ signal to the Printed Circuit Board (PCB). This signal is proportional to the water flow rate. The PCB sends electrical current to the combustion fan motor causing it to turn.
9. Main Components 1) Printed Circuit Board • The Printed Circuit Board controls all operational functions including Air Supply Control, Gas Control, Water Flow Measurement, Water Flow Control, Combustion System and all sensors and safety devices. 2) Gas Flow Control • During normal operation, the PCB keeps the main solenoid valve open whilst there is flow through the unit and the burner needs to be lit.
10.
11.
12. Dip Switch Settings Dip Switch Settings 16e, 20e Dip Switches explained Gas Type Bank 1 off Bank 1 on off SW1 SW2 1 2 3 1 2 3 4 Temperatures (See Page 2) Bank 2 off on Gas Type LPG Bank 1 on off SW1 on SW2 1 2 3 4 1 2 3 4 Model settings Gas Pressure Settings Natural Gas Temperature settings with or without controllers.
13. Fault Finding If there is a fault with the appliance, and controllers are installed, a numerical fault code may appear on the digital display controller. If controllers are not installed, one may be fitted to find out the fault code. Fault finding without controllers (and thus fault codes) is possible but more time consuming. To diagnose and rectify faults, the Fault Finding Table is used as illustrated below: Fault Finding Table Describes possible faults and error codes.
Fault Finding Table Code on Controller Fault 03 Power interruption during Bathfill. Water will not flow when power restored. 10 Combustion fan current too high. Unit operates, then stops. Table E No ignition. Unit stops without flame igniting 11 C Flame Failure / Earth Leakage 12 Thermal fuse and/or overheat switch activated. Unit operates, then stops. 14 Over temperature warning. Unit operates, then stops.
14. Component Circuit Value Table Measurement Point Table reference Component Normal Value CN Surge Protection Water Flow Control Device A Note Wire Colour B-Br AC207~264V R(CN2-NO.4)-B ±DC11~13V (Only When Operating) Operate Electricity R(CN4-NO.
15. Component and Circuit Checks 1. Combustion Fan Circuit Check the Motor Check the combustion fan if the error indicator displays “61”. Measure voltages between Black and Red of the PCB connector (A). Normal: DC15~46V (when fan ON) DC0V (when fan OFF) If normal proceed to check the rotation sensor Faulty: Replace PCB Check for the Fan Rotation Sensor a.) Measure voltages between Black and Yellow of connector (A). Normal: DC11~13V If normal proceed to b.). Faulty: Replace PCB. b.
4. Solenoid Valve 1 (SV2) Circuit Check Solenoid 1 if error indicator “11” is displayed. a.) Disconnect Solenoid 1 connector (E2) and measure resistance between Blue and Black. Normal: 1.7 ~2.0kΩ If normal, proceed to b. Faulty: Replace Solenoid 1. b.) Measure voltage between Blue and Black of Solenoid 1 connector. Normal: DC80~100V If normal, proceed to Solenoid Valve 2 (SV3) Circuit Faulty: Replace PCB. 5. Solenoid Valve 2 (SV2) Circuit a.
7. Flame Rod Circuit Check flame rod. Disconnect flame rod terminal (B5), and re-operate. “72” indicated:- Proceed to 3. “72” is not indicated:- check for electrical leaks from the flame rod. Measure resistance between flame rod terminal (B5) and appliance earth. Normal: >1MΩ If normal, replace PCB. Faulty: Replace flame rod. a.) Remove the Flame Rod terminal (B5) repeat operation procedure, if “72” is displayed again check the Hot water outlet thermistor.
10. Overheat Switch Circuit Measure resistance between Overheat Switch terminals. (B4). Normal: < 1Ω If normal, replace PCB. Faulty: Replace Overheat Switch. Note: If Thermal fuse or Overheat Switch were faulty. a.) Check heater for damage b.) Confirm gas type and combustion dipswitch settings c.) Confirm test point pressure. 11. Water Flow Sensor a.) Measure voltage between Red - Black of relay connector (B2). Normal: DC 11~13V If normal, proceed to b. Faulty: Replace PCB. b.
13. Hot Water Outlet Thermistor Circuit Check Hot Water Thermistor if error code “32” is displayed. Disconnect relay connector (B1) and measure resistance White -White. When disconnected: resistance >1MΩ When short circuit: resistance > 1 Ω Normal: Check Heat exchanger outlet thermistor Faulty: Replace hot water outlet thermistor. Normal Temp. Resistance 15oC 11.4∼14 kΩ 30oC 6.4~7.8 kΩ 45oC 3.6~4.5 kΩ 60oC 2.2~2.7 kΩ If normal proceed to Flame Rod circuit.
17. Remote Control Check the voltage between the 2-core remote control cable. Measure the voltage between terminals on the remote control terminal (D). Normal: DC 11~13V If normal, replace the remote control after confirming that the cable hasn’t been damaged or shorted. Faulty: Because normal voltage is not given due a short circuit, despite the PCB being in normal state, check Water Flow Servo circuit. If solution is not given from the above replace PCB. 18. Anti-frost Heater Circuit a.
16. Maintenance Monitor / Error History INFINITY 20e INFINITY 16e A deluxe controller (MC70-2A) should only be fitted to the above water heater models, for the purpose of enabling service personnel to locate the error history and fault find operational appliances. NB. Use only one controller, when accessing the maintenance information, error history, as two or more remote controls may cause incorrect operation. To display Maintenance Information 1.
07 Water flow servo present recognising positioning None 0~2 *Note 3 *Note 3 Water Flow Servo Positioning Servo Position Display 08 09 10 Open “1” Centre “0” Inlet water temperature (PCB recognition value) (Example 25 = 25°C) Hot water fan current flow value (Example 6 x 10 = 60 mA) Bath fill amount (this counts the litres during bath fill operation).
17. Gas Pressure Setting Procedure The regulator on the Infinity is electronically controlled and factory pre-set. Under normal circumstances it does not require adjustment during installation. Perform this procedure only if the unit is not operating correctly and all other possible causes for incorrect operation have been eliminated. 1) Turn 'OFF' the gas supply 2) Turn 'OFF' 240V power supply. 3) Remove the appliance cover. 4) Check gas type switches (fig.
11) Remove rubber access plug and adjust the regulator screw on the modulating valve (fig. 4) as required to the pressure. Table 1. Replace rubber access plug. 12) Set the Infinity to 'Forced High' combustion by setting both No. 3 and No. 4 dip switches of the bottom (SW1) set to 'ON'. (fig. 5) ensure maximum water flow. fig. 4 13) Check the burner test point pressure. 14) Adjust the high pressure Potentiometer (POT) on the Printed Circuit Board (PCB) as required to the pressure shown Table 2. (fig. 1).
18. Gas Conversion Procedure Conversion Method Warning-Ensure that the power cords is disconnected from the power point (240V potential) and isolate gas supply. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Remove outer cover, 4 screws. Delete "Natural" from the combustion chamber cover and replace with "Propane". (Use a black marking pen). Delete gas type from small paper sticker on bottom edge of inner casing. Replace small gas label on gas inlet.
19. Dismantling for Service 240 volt potential exposure. Isolate the appliance and reconfirm with a multimeter. Item Page 1. Removal of the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2. Removal of the PCB Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3. Removal of the Water Flow Sensor, Servo and Bypass Servo . . . . . . . . . . . . . . . . . 37 4. Removal of the Sparkers . . . .
IMPORTANT For some areas of dismantling you may need to isolate any or all of the following: * Isolate gas supply. * Disconnect electrical supply from wall socket. * Isolate water supply. * Drain all water from appliance. 1) Removal of Front Panel a. Remove four (4) screws. 3) Removal of the Water Flow Sensor and Servo. a. Remove one (1) screw and pull off heat exchanger inlet water connection tube. b. Remove lock bracket and pull off inlet water connection tube. Ensure O- ring not lost or damaged.
6) Removal of Outgoing Water Thermistor a. Remove one (1) screw of Heat Exchanger outlet water tube. b. Unlock bracket and pull off inlet water tube. Ensure O-ring is not lost or damaged. c. Remove one (1) screw and pull off outgoing water thermistor. a. Remove flame rod terminal (yellow) b. Remove combustion chamber front panel (6 screws) c. Remove two (2) screws and pull off the burner unit. 7) Removal of Transformer a. Remove PCB (refer item 2) b. Remove two (2) screws and pull off transformer.
. . 9) Removal of Gas Control a. Remove manifold (refer item 8) b. Remove front panel (4 screws). (refer item 1). c. Remove four (4) screws on gas connection inlet and gas control (assy), and pull out the gas connection. Handle O-ring carefully. h. Pull off Heat Exchanger 10) Removal of Heat Exchanger a. Remove PCB (refer item 2) b. Remove Heat Exchanger inlet water tube (refer item 3) c. Remove outlet water tube (refer item 6). d. Remove three (3) screws from the manifold (refer item 8). e.
When Thermal Fuse is replaced, mount the thermal fuse as follows: Heat Exchanger LH side Heat Exchanger RH side Heat Exchanger Front Heat Exchanger Back Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W - 40 - Issue 1 - 10/10/03 ©Rinnai
20.
Infinity 16e and 20e Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W - 42 - Issue 1 - 10/10/03 ©Rinnai
Infinity 16e and 20e Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W - 43 - Issue 1 - 10/10/03 ©Rinnai
Infinity 16e and 20e Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W - 44 - Issue 1 - 10/10/03 ©Rinnai
21.
16e 4'7 8 9 No. PART NAME RJ DRAWING No. RUK PART No. QTY 3$1(/ $VV\ )URQW 8 & %5$&.(7 :DOO 0RXQW %8 3$1(/ )U 8 3/8* $8 *5200(7 &DEOH %8 1 *$6.(7 &DEOH 8 &211(&7,21 5 *DV &8 6&5(: 73 6HDO & ' &21752/ *DV & ( 6 0$1,)2/' $ $VV\ 3URS 8 $ 0$1,)2/' % $VV\ 1* 8 % *$6.
20e 4'7 8 9 1R 3$57 1$0( 5- '5$:,1* 1R 5$ 3$57 1R QTY %2'< $VV\ 0DLQ 8 $ %5$&.(7 :DOO 0RXQW %8 3$1(/ )U 8 3/8* $8 *5200(7 &DEOH %8 1 *$6.(7 &DEOH 8 &211(&7,21 5 *DV &8 6&5(: 73 6HDO & ' &21752/ *DV & ( 6 0$1,)2/' $ $VV\ 3URS 8 $ 0$1,)2/' % $VV\ 1* 8 % *$6.
e 1R 3$57 1$0( 5- '5$:,1* 1R 5$ 3$57 1R QTY &211(&7,21 ,Q :DWHU + 675$3 3OXJ 8 ),/7(5 ,QOHW :DWHU + ),/7(5 3OXJ + 5(&7,),(5 0 ' 6(592 :DWHU )ORZ 0 ( $ &29(5 :DWHU )ORZ 6\ 8 &211(&7,21 +: 8 675$3 3OXJ $8 '5$,1 9$/9( $VV\ %8 & 3&% $VV\ 8 &29(5 $ (& 8 $ &29(5 (& 8
e 1R 3$57 1$0( 5- '5$:,1* 1R 5$ 3$57 1R QTY 6&5(: &3 6&5(: =)'% 8.
Notes Service Manual Infinity 16e and 20e REU-V1616W/REU-V2018W/REU-V2020W Issue 1 - 10/10/03 ©Rinnai
SERVICE CONTACT POINTS Rinnai 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.
