SERVICE MANUAL - HOME Rinnai South Africa
SERVICE MANUALTo Suit Models:REU-V2632FFUGREU-VM2632FFUCDoes NOT Suit Other ModelsDRDAFT
All Rinnai products are certified by theAustralian Gas Association as compliantto relevant Australian Standards.Rinnai Australia Head Office is certifiedas complying with ISO 9001 by SAIGlobal.Distributed and serviced in Australia under a QualitySystem certified as complying with ISO 9001 bySAI GlobalRinnai New Zealand has been certified toISO 9001 Quality Assurance by Telarc.All Rinnai products are Certified toWaterMark by SAI Global. WaterMarkcertification is awarded to products andfittings complying with safety and watercontamination standards.SAI Global
Glossary of Terms and SymbolsdB(A)-sound pressure level in decibels, “A” rangeDC-direct currentAC-alternating currentWFCD-water flow control deviceFB-feedback informationFF-feed forward informationHz-HertzIC-integrated circuitkcal/h-kilocalorie per hourkPa-kilopascalsLED-light emitting diodeL/min-Litres per minutemA-milliampsMJ/h-megajoule per hourmm -millimetresmmH2O -millimetres of water (gauge pressure)OHS-overheat switchPCB-printed circuit boardCPU-central processing unitPOT-potentiometerrpm-revolutions per minuteSV-solenoid valveø-diameter oC-temperature rise above ambientPOV-modulating valveTE-thermal efficiencyTH-thermistorTIN-temperature of incoming waterTOUT-temperature of outgoing waterInfinity REU-V2632FFUG / HD200i REU-VM2632FFUC- iii -Issue 1 - 16/12/09 Rinnai
Copyright Rinnai Australia Pty Ltd ABN 74 005 138 769All rights reservedProduced by Engineering & Technical GroupNo portion or part of this manual may be copied without priorpermission from Rinnai Australia.Rinnai Australia reserves the right to make modifications and changespecifications without notice.W A R N I N GWARNINGFailure to comply with these instructions may result in serious personalinjury or damage to the appliance. All wiring inside this appliance may be at 240 Volts potential.WARNING All service work must be carried out by an authorised person.This manual has been published by Rinnai Australia Engineering &Technical Group.We welcome users of this manual to provide feedback and suggestionsfor improvement purposes.
Table of ContentsGlossary of Terms and Symbols . . iii1. Specifications . 12. Water Flow Rates and Pressures . 33. Dimensions . 44. Water Controllers . 55. Smartstart . 76. Operational Flow Chart . 87. Cutaway Diagram . 108. Operation Principles . 119. Main Components . 1210. Time Charts . 1311. Wiring Diagram . 1412. Component Circuit Value Table . 1513. Dip Switch Settings . 1614. Fault Finding . 1715. Component and Circuit Checks . 1916. Maintenance Monitor / Error History . 2417. Gas Pressure Setting Procedure . 2718. Gas Conversion Procedure . 2719. Dismantling for Service . 2920. Parts List . 3721. Exploded Diagram . 41SERVICE CONTACT POINTS . . 45Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-v-Issue 1 - 16/12/09 Rinnai
1. SpecificationsRinnai model numberType of applianceCombustion systemInstallationDimensionsWeightGas consumption (Min. / Max.)ConnectionsIgnition systemElectrical consumptionDelivery TemperaturesWater flow controlMaximum hot water capacity, raised@ 25 CWater pressure required to achievemaximum water flowMinimum water flow for operationPower supplyWater controllers (optional)Water Controller Cable(Supplied with controller)REU-V2632FFUGREU-VM2632FFUCTemperature controlled continuous flow gas hot water systemRoom sealed, fan forced combustionInternalWidth350 mmHeight600 mmDepth259 mm21 kilogramsNatural gas:16 195 MJ/hPropane gas:16 195 MJ/hGas connectionR3/4 (20A)Cold water connectionR3/4 (20A)Hot water connectionR 3/4 (20A)Direct electronic ignitionNormal45 WStandby2 W (with 1 water controller)40 C, 42 C, 50 C, 55 C, 65 C, 75 C & 85 C(set by combination of dip switches on PCB)Water flow sensor, electronic water flow control device and electronicBy-Pass flow control device.26 L/min140 kPa2.4 L/minAppliance - AC 240 Volts 50 HzWater controller - DC 12 Volts1. Up to 4 controllers can be fitted.See below for the combination limitation of water controllers2. Wireless controllers can be fitted in the same manner ofMC-91Q-2AKitchen controlMC-100V-1A or MC-91Q-2ABathroom controlBC-100V-1A or MC-91Q-2ASecond bathroom control BC-100V-1A or MC-91Q-2AThird bathroom controlMC-91Q-2ANon-polarized two core cable.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-1-Issue 1 - 16/12/09 Rinnai
Sensors and Safety Functions Hot Water Delivery Thermistor: Measures hot water temperature at the appliance outlet c onnection (i.e. the ‘mixed’ temperature). Flame Rod: Monitors combustion characteristics inside the combustion cha mber. If the flame fails,gas supply is stopped. Overheat Switch: Situated on the heat exch anger, ga s supply is stopped when wate r temperaturereaches 97ºC for a number of seconds. Fusible Link: Situated on the he at exchanger, electrical power supply is stopped if the temperatureexceeds 129ºC. Water Pressure Relief Valve: Safeguards the water circuit against excessive inlet pressure. Opensat 2060 kPa, closes at 1470 kPa. Electrical Fuse: (3A glass fuse) prevents against over-current.Surge Protector: prevents against over-current. Boil Dry Prevention: If water flow sensor detects no flow, gas supply is stopped. Combustion Fan Speed Sensor: In case of combustion fan defect (no rotation of fan) gas supply isstopped. Temperature Cutout: If the delivered hot water temperature rises above the required deliverytemperature for a number of seconds, the gas supply is stopped.Combustion SpecificationsSee dataplate on appliance.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-2-Issue 1 - 16/12/09 Rinnai
2. Water Flow Rates and PressuresWater flow rate and pressure characteristics as shown below.Water Flow vs Pressure Graphs Outlet flow (litres/minute) ))8 Inlet pressure (kPa)REU-V2632WC & FFUP(kPa)Q(L/min)@Tset37 Q(L/min)@Tset60 0002011.36.43014.810.44016.913Infinity REU-V2632FFUG / HD200i ssue 1 - 16/12/09 Rinnai
3. scriptionWidthDepthHeight - UnitHeight - Including BracketsHot Water outlet (from wall)Hot Water outlet (from centre)Cold Water inlet (from wall)Cold Water inlet (from centre)Gas Connection (from wall)Gas Connection (from centre)Gas: Length (from base)Cold: Length (from base)Hot: Length (from base)Gas: Fitting DiameterCold: Fitting DiameterHot: Fitting 34.5 274.560064191 13111070 11027 *99 13989415142202020* Please note that this measurement is to the left of the centre line.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-4-Issue 1 - 16/12/09 Rinnai
4. Water ControllersAllwater controllers must be installed in accordance with the relevant operation/installation instructions supplied with thewater heater or controllers.NOTECare should be taken to ensure power supply to the Infinity is isolated when connecting /disconnecting controller wiring or transponder on wireless controllers. Failure to isolatepower supply may result in damage to the appliance PCB.Care should be taken when closing the Ezi-connect access panel, to ensure internal wiringfor controllers is not shortened or crushed.TroubleshootingWater Controller not showing display - (Wired Water Controllers) Check that the correct number and combination of co ntrollers have b een installed for the specific modelInfinity. Refer to controller compatibility table below. Check water controller is turned ON. Check there is 12VDC power supply available to the controller from the Ezi-connect terminals. If there is 12VDC available from the Ezi Connect but no controller display, check wiring between Ezi-connectand controller is sound. If there is no power from the Ezi-connect terminals, but the hot water functions correctly, replace PCB.Error Code 12 as soon as hot water tap is turned ON. Check 12VDC internal wiring to Ezi-connect terminal is not crushed or shorted. Rectify wiring and re-close Ezi-connect cover carefully.Water Controller not showing display - (Wireless Water Controllers) Ensure transceiver module is mounted in the correct location, as per wireless controller installation instructions. Ensure 2 x AA batteries are in good working order and installed with the correct polarity within the wirelesscontroller. (Battery polarity details on rear of wireless controller) Ensure distance between wireless controller and transceiver does not exceed 50 metres. Ensure channel has been allocated to each wireless controller. Ensure w ireless co ntroller has been pro grammed to the transceiver correctly , as per wireless controllerinstallation instructions.Water Controller Compatibility TableWireless OnlyInstallationA maximum of 4 wireless water controllers can be fitted with the following limitation:Only ONE MC-502RC / MC-503RC can be set as the Master Controller.A maximum of 4 water controllers can be fi tted. Any combination of delux e, universal andwireless controllers can be used with the following limitation:Wired &WirelessInstallationsOnly ONE master controller can be installed. This can be a MC-100V, a MC-91Q (whenprogrammed as a master controller) or a MC-502RC/MC-503RC water controller.Up to TWO BC-100V water controllers can be installed.The FOURTH water controllers in any installation MUST BE a MC-502RC / MC-503RCor a MC91Q.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-5-Issue 1 - 16/12/09 Rinnai
PROGRAMMING FOR THE ‘UNIVERSAL’ WATER CONTROLLER (MC-91Q)QUESTIONAre there four water controllers connected?IF NO:(You have three water controllers or fewer), go to Question 2.IF YES:You will need to activate the fourth water controller as follows:STEP 1:For t he water co ntroller in the KITCHEN ONLY, press and h old the‘Transfer’ and ‘On/Off’ b uttons si multaneously (see Fig. 5) unt il a‘beep’ is heard (approximately 5 seconds).STEP 2:Check th at th e di splay o n A LL FOU R water con trollers is l it an ddisplaying a tem perature wh en ‘swi tched on ’. If any ONE of thecontroller displays two dashes (see Fig. 6) repeat STEP 1.Fig. 5This completes the activation proced ure for the fourth co ntroller, youmay ignore Question 2.Fig. 6QUESTIONIs the water heater marked to state it delivers water notexceeding 50 C?IF YES:No further action required.IF NO:You will need to program the kitchen controller to enable selection oftemperatures higher than 50 C.STEP 1:For the controller in the KITCHEN ONLY, press andhold the‘Transfer’ and ‘On/Off’ buttons simultaneously (Fig. 7) until a ‘beep’ isheard (approximately 5 seconds).STEP 2:When the controller fitted in the KITCHEN is switched On, it should bepossible to select temperatures higher than 50 C. If not, repeat STEP 1.Fig. 7If the water controller in the kitchen is replaced, repeat STEP 1 above for the replacementcontroller.NOTEIf the water controller in the kitchen is swapped with another controller (for example, thecontroller fitted in a bathroom), repeat STEP 1 for the controller moved from the kitchento the bathroom. Then perform STEP 1 for the controller moved from bathroom to thekitchen.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC-6-Issue 1 - 16/12/09 Rinnai
5. SmartstartAt least one temperature controller model MC-91Q must be used in conjunction with the water heaterand the Smartstart system. Alt ernatively, if water c ontrollers cannot be used a manual a ctivationswitch must be used. Water Controllers cannot be used with the REU-V2426WS model.At least one water controller model MC-91Q must be used in conjunction with the water heater and theSmartstart system. Alternatively, if water contro llers cannot be used a manual activation switch isavailable. Refer to the installation manual for the Smartstart system.The installation of th e water heat er and wat er controllers must be performed in acc ordance with theoperating/installation instructions supplied with the water heater.The Smartstart system is designed for domestic installations. However, it may be suitable for certainnon domestic installations.Principle of operationThe "Smartstart " system heats the w ater in the pipework water connected between the water heaterand the hot water outlets before any outlets are opened using the 'flow and return' pipework principle.This results in water savings an d reduced waiting time for heated water delivery from the outlet whenopened.Traditional 'flow and return' systems usually keep the water in the pipework heated continuously. TheSmartstart system however, only heats the water before the outlet is opened. This results in significantenergy savings because water isnot heated unnecessarily whilst retaining the benefits of traditional flowand return systems.A schematic of the Smartstart system installed in conjunction with a Rinnai continuous flow waterheater and water controller as shown below.If problems are experienced with Smartstart operation refer to the Smartstart Service Manual.One or moreMC-91QControllersPreheat ButtonRinnai ContinuousFlow Water HeaterHOTCOLDGASHeating Loop FlowSmartstart ModuleHot WaterOutletHot WaterOutletCold Inlet MainsHeating Loop ReturnInfinity REU-V2632FFUG / HD200i REU-VM2632FFUC-7-Issue 1 - 16/12/09 Rinnai
6. Operational Flow ChartInfinity REU-V2632FFUG / HD200i REU-VM2632FFUC-8-Issue 1 - 16/12/09 Rinnai
Operational Flow Chart - ContinuedInfinity REU-V2632FFUG / HD200i REU-VM2632FFUC-9-Issue 1 - 16/12/09 Rinnai
7. Cutaway DiagramInfinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 10 -Issue 1 - 16/12/09 Rinnai
8. Operation PrinciplesHot Water Operation1. Ignition Activate water controllers (if fitted) and open the hot water tap (for full details regarding operation ofcontrollers refer to the ‘Customer Operation/Installation manual’ supplied with water heater). When water flows through the unit, the water flow sensor rotates and sends an electrical ‘pulse’ signalto 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. The fan motor sendsan electrical pulse signal to the PCB. If fan rotation is OK, the main solenoid and changeover solenoidvalves open as required, the spark generator activates and the spark electrode ignites the burner.2. Water Temperature and Flow The PCB will automatically control operation of th e internal components to achieve the programmedtemperature. When a high tempe rature rise is required, the PCB may cause the Water Flow Servo toclose partially resulting in a lowe r flow ra te to ac hieve th e p rogrammed tempera ture. This is anecessary operational feature of the unit. When operating in ‘Bath Fill’ mode , the signal from the water flow sen sor is also used by the PCB tocompute the volume of water tha t has been passed through the unit at any insta nt whilst the ba th isfilling.3. Shut Down When operating in ‘Bath F ill’ mode, the PCB causes the Water F low Serv o to close when theprogrammed Bath Fill volume has pas sed through the unit. Alternatively, flow is stopped when theuser closes the hot water tap. When water flow stops, the water flow sensor stops rotating and the pulse signal to the PCB stops. ThePCB then causes the main solenoid and solenoid valves to close an d the burner is extinguished. Thecombustion fan will continue to operate for some time to purge the combustion chamber.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 11 -Issue 1 - 16/12/09 Rinnai
9. Main Components1) Printed Circuit Board (PCB) 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 theunit and the burner needs to be lit. Gas flow rate is controlled by the modulating valve assembly and changeover solenoid valves to alwaysensure constant outlet water temperature, regardless of flow rate or incoming water temperature. The modulating valve is electronically controlled by the PCB using signals from the water flow sensor,water flow control device, by pass flow control device, water temperature thermistors and combustionfan speed sensor. The modulating valve directs gas to the changeover solenoid valves. The changeover solenoid valves direct gas to each of the three burner banks independently. Any of thesolenoid valves may be open during operation. Gas flow is modulated by a combination of the modulating valve and changeover solenoid positions. The max imum gas rate is p redetermined and th e appliance ca nnot b e ov erloaded w hen correctlyinstalled.3) Water Flow Control Water flow is detected by a turbine coupled to a magnetic pulse ge nerating device.The magnetic pulsesare detected and c ounted by the PCB.The PCB calculates the exact water fl ow from the frequency ofpulses generated by the turbine, as well as the volume of water that has passed through the unit at anyinstant during ‘Bath F ill’ operation. A minimum flow rate of 2.4 l/min is requir ed for the burner toignite. Water flow control is achieved through the use of servo driven water flow and bypass valves. Both servomotors are controlled by the PCB.The ‘Water Flow Valve’ restricts the flow of water into the heatexchanger ass embly if the progra mmed tempera ture cannot be achieved. Also, when the Bath Fillfunction is activated, flow of water is stopped when the bath is full. During normal operation, cold waterfrom the inlet valve is mixed with hot water from the heat exchanger outlet.The ‘Bypass Valve’ mixesthe correct proportion of c old and hot w ater to ensure accurate hot water delivery temperature over theavailable range of flow ra tes. The water flow a nd bypass valves a re a c ombined assembly on the coldwater inlet of the appliance.4) Air Supply Control Air for combustion is supplied by a centrifugal fan driven by a variable speed DC motor. The voltage tothe motor is determined by the PCB based on water flow, delivered water temperature and programmedwater temperature. The actual fan speed is monitored by a magnetic pulse counter. This counter emits asignal to the PCB. F rom the volt age supplied t o th e DC motor and t he fan sp eed signal, the P CBdetermines whether an error condition exists with the fan.5) Combustion SystemThe combustion chamber is housed within the heat exchanger assembly and comprises: A multi chamber alumi nium alloy ma nifold with multiple injectors, arranged i n mult iple rows. Themiddle chamber houses eight injectors, the left chamber, twelve, and the right chamber, multipleinjectors. Gas flow to ea ch cham ber is controlle d by an elec tronic solenoid valve (refer ‘Gas FlowControl’ above). A burner assembly comprising multiple identical modular st ainless steel bunsen burners secured by analuminised steel fra mework. The ma nifold is atta ched to t he front of t he burner module. Each bunsenburner is supplied by two injectors. A c ombustion chamber . Integra ted into the c ombustion chamber front panel are the flame rod aignition electrode(s).Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 12 -ndIssue 1 - 16/12/09 Rinnai
10. Time ChartsNormal Combustion(shows adjustable By-Pass)Mis-Ignition / Flame FailureAbnormal Pre-Purge (Air Supply/Exhaust Blockage)Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 13 -Issue 1 - 16/12/09 Rinnai
Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 14 -ANTI-FROST HEATER-K 6G5G4G3E3G1WWWWWPRYBkRR31GND31SURGEPROTECTORWWAIR TEMPERATURETHERMISTORG7RBBrYGyWWOUTGOING WATERTHERMISTORRYBkWWQSRRBkBrF4BBkF3YBkF2PBkF1HEAT EXCHANGERWATER THERMISTORWATER FLOWSENSORE1POV OOE2WATER FLOWCONTROL DEVICEMODULATINGSOLENOID VALVEFLAME RODAC240V 50HzYYYYFROST SENSINGSWITCHANTI-FROST HEATERW :WhiteBk:BlackBr:BrownR :RedB :BlueY :YellowP :PinkO :OrangeGr:GreenGy:GreyPu:PurpleCOLOUR CODINGSV3SOLENOID VALVE 3OVERHEATSWITCHSV2SOLENOID VALVE 2G2SV1SOLENOID VALVE 1THERMAL FUSESSV0MAIN SOLENOID VALVED1WBkROOYF562DY BE1Bk1PWBr1 15Rfor REU-MSA(Optional)GyY W Bk R Y R OW R Br B PG141CHO BrY R2131OFFGND4AONG/YRBkYW11234Dip SW212345678Dip SW1MINMAX111GyJIGyBRBkBYGrPuGyOBrPW(CN9)1 3W BkRH1C1IGNITERGyGyJ1VM series onlyWATER CONTROLLERBY-PASS FLOWCONTROL DEVICEIGFMSPARKELECTRODECOMBUSTION FANSTATUS MONITORRBkYWA1B1WPBrOGyPuGrYBBkRBKBKGas typeGas pressureTemperature controlMODULATING VALVECURRENT ADJUSTINGfor REU-EZC(Optional)BrOYRW11. Wiring DiagramIssue 1 - 16/12/09 Rinnai
12. Component Circuit Value TableMEASUREMENT POINTFLOWCHART NO.1COMPONENTSURGE PROTECTORNORMAL VALUEWIRE COLOURD1B-BrAC207 264VR-BDC11 13VOPERATE ELECTRICITYDC11 13VCONTROL ELECTRICITYGy-O217NOTECNWATER FLOWG6BELOW DC1V (LIMITER ON)FULL OPEN POSITIONGy-YDC4 6V (LIMITER OFF)CONTROL DEVICEBELOW DC1V (LIMITER ON)FULL CLOSE POSITIONGy-BrDC4 6V (LIMITER OFF)3H1Br-WO-WY-WR-W GNDA1Bk-BkDC11 13VR - BkDC11 13VY - Bk GNDDC4 7V (PULSE 17 460Hz)R - BkDC6 45VBY-PASS FLOWCONTROL DEVICE456WATER CONTROLLERWATER FLOW SENSORCOMBUSTION FANFLAME RODDC12V (OPERATING DC2 6V) OPERATE CONDITION15 35 :G3B1E1Y - BkDC11 13VW-Bk GNDDC6 45V (33 400 Hz)Y - BODY EARTHAC5 150VY - FLAME RODOVER DC1μADC2 15V67 81:89MODULATING VALVEE2P-POUTGOING THERMISTORG5W-W10HEAT EXCHANGEROUTGOING THERMISTORG4W-P11AIR THERMISTORG6W-O12THERMAL FUSEG1E3R-R13IGNITERC1Gy-GyAC207 264V14MAIN SOLENOID VALVEF1P-BkDC11 13V37 43 :15SOLENOID VALVE 1F2Y-BkDC11 13V37 43 :1617SOLENOID VALVE 2F3B-BkDC11 13V37 43 :SOLENOID VALVE 3F4Br-BkDC11 13V35 41 :Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 15 -ON 2.7 L/min (30Hz)OVER 1800PULSE/minOFF 2.0 L/min (20Hz)BELOW 1200PULSE/minAFTER IGNITIONFLAME CONDITION15 C 11.4 14.0 k :30 C 6.4 7.8 k :45 C 3.6 4.5 k :60 C 2.2 2.7 k :105 C 0.6 0.8 k :BELOW 1 :Issue 1 - 16/12/09 Rinnai
13. Dip Switch SettingsContact Rinnai for Dipswitch settings.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 16 -Issue 1 - 16/12/09 Rinnai
14. Fault FindingIf there is a fault with the appliance, and controllers are installed, a numerical fault code may appear on thedigital display controller. If controllers are not installed, one may be fitted to find out the fault code. Faultfinding 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 TableDescribes possible faultsand error codes.(page 18)OperationalFlow Chart(page 8)Component Circuit Value TableSummarises running and standby electricalvaluesfor all components.(page 15)Wiring Diagram(page 14)MaintenanceMonitor / ErrorHistoryProvides accumulatednumber of startups,combustion time, historyof operational faults andreadout of electrical valueswhilst unit operational.Component andCircuit CheckProceduresDetailed information onhow to check allcomponents.(page 19)(page 24)Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 17 -Issue 1 - 16/12/09 Rinnai
Fault Finding TableCode onWaterController03FaultActionPower interruption during Bathfill. Water will notflow when power restored.1. Turn off all hot water taps.2. Press the ON/OFF button on a controller twice.1. Check blockage of air intake/flue outlet.2. Check combustion fan.1. Check gas supply2. Check sparker unit3. Check gas valves1. Check gas supply2. Check flame rod3. Check earth wire lead4. Check water controller1. Check thermal fuse2. Check overheat switchIMPORTANT- If thermal fuse or overheat switch were faulty:a. Check heater for damageb. Confirm “Gas Type” & “Combustion” dip switch settings.c. Confirm test point pressures.1. Confirm “Gas Type” and “Combustion” dip switch settings.2. Confirm test point pressure.3. Check gas valves4. Check water flow sensor and water flow servo6. Check heat exchanger outlet temperature thermistor7. Check hot water outlet temperature thermistorCheck hot water outlet thermistorCheck heat exchanger thermistorCheck modulating solenoid valve10Combustion fan current too high. Unit operates, thenstops.11No ignition. Unit stops without flame igniting12Flame Failure / Earth Leakage14Thermal fuse and/or overheat switch activated. Unitoperates, then stops.16Over temperature warning. Unit operates, then stops.323352Outlet water thermistor flowHeat exchanger thermistor errorModulating solenoid valve fault. Unit stops withoutflame ignition.Combustion fan rotation errorWater flow control device error. Water flow is notcontrolled. Water temperature too low.Solenoid valve circuit error. Unit does not operate.Flame rod circuit error. Unit does not operate.Appliance does not operate at all. No display on thecontrollers (if fitted).61657172--No combustion despite water controller indicatingthat combustion is occurring - if controller(s) fitted)-Combustion stops during operation.-Cannot adjust the hot water temperature via the watercontroller(s) - only if water controller(s) fitted.-Anti-frost heater does not operate.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUCCheck combustion fanCheck water flow servoCheck gas valvesCheck flame rod1. Check power cord plugged in and supply turned on.2. Check power supply voltage.3. Check electrical fuse.4. Check transformer.5. Check gas valves6. Check sparker unit.7. Check earth leads and connections.8. Check for short circuits9. Check water controller(s) - if fitted.1. Check water flow sensor.2. Check flame rod.3. Check heat exchanger outlet thermistor.4. Check hot water outlet thermistor.5. Check combustion fan.6. Check the sparker unit.7. Check gas valves.8. Check thermal fuse.9. Check overheat switch.IMPORTANT - If thermal fuse or overheat switch were faulty:a) check heater for damage;b) confirm “Gas Type” and “Combustion” dip switch settings;c) confirm test point pressure.1. Check gas supply2. Check flame rod3. Check earth leads and connections.1. Check hot water outlet thermistor.2. Check heat exchanger outlet thermistor.3. Check gas valves4. Check water flow servo.1. Check anti-frost heater components2. Check frost sensing switch- 18 -Issue 1 - 16/12/09 Rinnai
15. Component and Circuit ChecksREU-V2632FFUG / REU-VM2632FFUC1. Combustion Fan CircuitCheck the MotorCheck the combustion fan if the error indicator displays “61”.Measure voltages between Black-Red of the PCB connector (B1).Normal: DC6 45V (when fan ON)DC0V (when fan OFF)If normal proceed to check the rotation sensorFaulty: Replace PCBCheck for the Fan Rotation Sensora.) Measure voltages between Red-Black of connector (B1)Normal: DC11 13VIf normal proceed to b.).Faulty: Replace PCB.b.) Measure voltages between Black-White of connector (B1)Normal: DC6 45V (33 400Hz)If normal proceed to Sparker Circuit 2.Faulty: Replace Combustion Fan.2. Sparker Circuita.) Measure voltages between Grey-Grey of connector (C1).Normal: AC207 264VIf Normal proceed to b.).Faulty: Replace PCB.b.) Disconnect connector (C1) and measure voltage between both terminals of the sparker.Normal: 1M If not sparking, adjust or replace ignition plug.Faulty: Replace Sparker.3a). Main Solenoid Valve (SV0) Circuit (F1)Check the main solenoid if error indicator “11” is displayed.a.) Disconnect Main Solenoid connector (F1) and measure voltage between Pink-BlackNormal: DC11 13VIf normal, proceed to b.).Faulty: Replace PCB.b.) Measure resistant between Pink-Black of Main Solenoid connectors.Normal: 37 43 If normal, proceed to Solenoid Valve SV1Faulty: Replace Main Solenoid.Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC- 19 -Issue 1 - 16/12/09 Rinnai
REU-V2632FFUG / REU-VM2632FFUC3b). Solenoid Valve 1 (SV1) (F2)Check Solenoid 1 if error indicator “11” is display
Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC - 5 - Issue 1 - 16/12/09 Rinnai 4. Water Controllers A l l water controllers must be installed in accordance with the relevant operation/inst allation instructions supplied with the water heater or controllers. Troubleshooting Water Controller not showing display - (Wired Water Controllers)
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Learn more about Rinnai high-performance Tankless Water Heaters, Hybrid Water Heating Systems, Boilers, Vent-Free Fan Convectors and EnergySaver Direct Vent Wall Furnaces at: rinnai.us rinnai.ca 2016 Rinnai America Corporation. Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.
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Rinnai Australia 7 Operation Manual IMPORTANT INFORMATION The range of Rinnai continuous flow water heaters referred to in this manual are incompatible with solar water heating systems. A dedicated range of solar compatible continuous flow water heaters is available from Rinnai. Always check
Rinnai's proven, long-lasting design and easily replaceable low-cost components ensure a lower total cost of ownership. The Rinnai Application Engineering Center of Excellence offers the first 100% system sizing guarantee. Rinnai's best-in-class commercial warranty provides 8 years or 12,000 operation hours on the heat
Vent systems. MUST read the Rinnai/Ubbink common vent installation manual completely before installing this product. This presentation does not serve as the official installation instructions or manual. The Common Vent System is for use with the Rinnai Condensing Wat
The Rinnai Water Heater never runs out of hot water. While electricity, water and gas supplies are connected, the Rinnai Water Heater produces hot water whenever the hot tap is open. ? The gas burner lights automatically when the hot water tap is opened, and goes out when the tap is closed. Ignition is electronic, there is no pilot light.
Water Heater Suitability . Wireless and Wired Water Controllers 5 Troubleshooting 16 Customer Contacts 16. Rinnai New Zealand 4 Wireless Installation and Operation: C 03-09 . When used correctly, the hot water unit will deliver the selected temperature, even when the water flow is varied, or more than 1 tap is in use. Each remote controller .
