50d50u-843
50D50U-843ALL-SPARK 24V Non-Integrated Spark Ignition ModuleINSTALLATION INSTRUCTIONSFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OROPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.DESCRIPTIONTABLE OF CONTENTSThe All-Spark 50D50U-843 is a non-integrated 24V single stagespark ignition module. This module is designed to replace either24V Intermittent Pilot (IP) or 24V Direct Spark Ignition (DSI)applications. Additional modifications can be made to replaceapplications with a rollout switch or edge card harness.TMItemElectrical SpecificationsWhite-Rodgers Connect7-Segment ConfigurationTable 1: Configuration Menu OptionsMounting and WiringReplacing Honeywell S8610UReplacing Fenwal 35-60, 35-61Table 2: 7-Segment Display CodesFault Recall and ResetAdditional Wiring ScenariosIntegrated Thermostat FeatureThe module is factory set to match Honeywell S8610U IntermittentPilot default settings (See Table 1). To replace Fenwal,Robertshaw, Johnson Controls, BASO, Carrier and other validpart numbers, additional configuration through the White-RodgersConnect Mobile App or 7-segment display is available.Agency Approval: ANSI Z21.20 Standard through ULINCLUDED IN THE BOX 1 – 50D50U-843 Ignition Module1 – 11-pin Harness Assembly1 – Vent Damper Jumper Plug (installed on module)1 – Local Flame Sense Jumper Wire (installed on module)6 – 3/16” QC crimp on terminals Page No.12234567788VIEW INSTALLATIONRESOURCES4 – 1” Sheet Metal Mounting Screws1 – 1/4" 14-16 AWG QC and shrink wrap sleeve1 – Fault Code Label for optional use1 – Installation InstructionsELECTRICAL SPECIFICATIONSSpecificationValueUnitInput Voltage18-30VACInput Current Max800mAWARNINGFailure to comply with the following warnings could result inpersonal injury or property damageLine Frequency50/60HzInducer Relay at 120V3.0/6.0FLA/LRAInducer Relay at 240V1.5/3.0FLA/LRA4.0Amp2.0AmpPilot Gas Valve Relay Max2.0Amp Installation should be done by a qualified heating and airconditioning contractor or licensed electrician. All wiring must conform to local and national electrical codesand ordinances. Following installation or replacement, follow manufacturer’srecommended installation/service instructions to ensure properoperation.Alarm Relay1.0AmpFIRE HAZARDFlame Current to indicate FlameLoss 0.50μA DCMain Gas Valve Relay Max (DirectSpark System Only)Main Gas Valve Relay Max (Intermittent Pilot System)Spark Rate20HzSpark Gap0.1-0.2inchesOPERATING TEMPERATURE RANGE-40 to 176 F (-40 to 80 C)HUMIDITY RANGE:5 to 95% relative humidity (non-condensing) Do not exceed the specified voltage. Protect control from direct contact with water (dripping,spraying,rain, etc.). If the control has been in direct contact with water, replacethe control. Label all wires before disconnection when servicing controls.Wiring errors can cause improper and dangerous operation. Route and secure wiring away from flame.SHOCK HAZARDMOUNTING AND INSTALLING:Leave at least ¼ in. clearance between sides of module and groundedmetalTIMINGS:See Table 1 on page 3. Disconnect electric power before servicing.Ensure proper earth grounding of appliance.Ensure proper connection of line neutral and line hot wires.Ensure control has 1/4” clearance between all sides ofcontrol and grounded metal.EXPLOSION HAZARDGASES APPROVED:Natural, Manufactured, Mixed, Liquid Petroleum, LP Gas Air Mixtures Shut off main gas to appliance until installation is complete.emerson.com/white-rodgersPART NO. 37-78220032131
MOBILE APP CONFIGURATION (PREFERRED)For fastest setup, use White-Rodgers Connect App:1. Download from iOS App Store or Google Play Store2. Open White-Rodgers Connect App3. Touch “Connect to Control” on the home page4. Place Device above NFC Logo on Module, wait for check mark5. Configure all settings in App6. Touch “Update Control”7. Place Device above NFC Logo on Module, wait for check markApp tutorial available on homepage of White-Rodgers ConnectNFC available on iOS 13 and greater (iPhone 7 and up) and allAndroid devicesON BOARD CONFIGURATION (7-SEGMENT OPTION)LED 1LED 2General LED Display Details:LED 3LEDDisplayDescriptionModule Power Up888During power up,each LED will besteady.StandbyOnNormal operation onpowered systems, noheat call presentO0fNormal operationwith no heat call; LED1 and 2 displays thecurrent temperatureand LED 3 displaysthe unitConditionIntegratedTSTAT OFFIntegratedTSTAT ONOPTION SELECT"OPTION"advances tonext option orselection choice"SELECT"confirms optionor selectionchoiceAdditional Notes:Configuration Menu Operation:Module powered by 24VStandbyUser is only allowed to enter menu when module is in standbyStandby is only available on systems that power the modulewith dedicated 24V (to access menu on systems that powermodule only through TH-W, see table below)Module will ignore heat call when menu is openActionModule StatusButton PressDurationEnter Configuration MenuIn Standby (Integrated TSTAT OFF)OPTION 3 seconds 3 secondsModule powered byTH-WEnter Configuration MenuUnpoweredOPTION while applying24V to TH-W terminalModule powered by 24VEnter Configuration MenuIn Standby (Integrated TSTAT ON)OPTION 3 secondsAdvance 1 Option Menu ItemIn Configuration MenuOPTION 2 secondsEnter Selections Menu LevelAt Options Menu LevelSELECT 2 secondsAdvance 1 Selection ItemAt Selections Menu LevelOPTION 2 secondsConfirm SelectionOn Chosen SelectionSELECT 2 secondsIntegrated TSTAT OFFExit Configuration MenuOn No. 3.0* in Configuration MenuOPTION 2 secondsIntegrated TSTAT ONExit Configuration MenuOn No. 3.5* in Configuration MenuOPTION 2 seconds2*See Table 1 on Page 3 for Configuration Menu Options and Selections
Table 1: Configuration Menu Options* Factory Default SettingNo.Menu ItemLED 1(flash)LEDs 2 & 3DisplayUnitDescription / Rule1.0System Ignition TypeS Y SIP*, dSIPN/AIntermittent Pilot (IP) or Direct Spark (DS)1. IP System menu will be displayed if System Ignition Type is set to 'IP'1.1Tries for Ignitiont r YC* (continuous),1, 2, 3N/ANumber of times the module will retry ignitionbefore going to auto restart delay.1.2Trial for Ignition(TFI) TimingIg n90*, 4,15, 30, 6090SecondsThe time the module will spark for each try1.3Pre-purgeP r E0*,15, 30, 45SecondsDelay time before spark ignition attempt1.4Inter-purgeIn t0*,15, 30, 45SecondsDelay time in-between spark attempts1.5Flame Sense TypeF L SLCL*, rEtLCLN/ALocal (LCL) or Remote (rEt) flame sense.1.6Auto Restart TimeA u t5*, 60MinutesDelay time after module reports Gas Valve OffLockout or No Flame During TFI Error.Module resets and goes back to standby.1.7Reset to DefaultC F dNo*, YesNoN/AReset IP system selections back to default1.8IntegratedThermostatt s tOFF*, OnOFFN/AIf ON, install Integrated Thermostat TemperatureSensor and see No. 3.1 for more selections2. DS system menu will be displayed if System Ignition Type is set to 'DS'2.1Tries for Ignitiont r Y1*, 2, 3N/ANumber of times the module will retry ignitionbefore going to auto restart delay.2.2Trial for IgnitionTimingIg n4*, 7,10,11,15,21SecondsThe time the module will spark for each try2.3Pre-purgeP r E30*, 45, 0,1530SecondsDelay time before spark ignition attempt2.4Inter-purgeIn t30*, 45, 90, 0,1530SecondsIf 2 or 3 tries for ignition are selected, 0 secondsinter-purge will not be available2.5Post-purgeP S t0*, 5,15, 30SecondsDelay time after heat call has ended2.6Flame Sense TypeF L SLcL*, rEtLcLN/ALocal (LCL) or Remote (rEt) flame sense2.7Auto Restart TimeA u t5*, 60MinutesDelay time after module reports Gas Valve OffLockout or No Flame During TFI Error.Module resets and goes back to standby.2.8Inducer/PressureSwitch OptionI n dOn*, OffOnN/AIf module being replaced has inducer/pressureswitch option, enable this setting to ON2.9Reset to DefaultC F dNo*, YesNoN/AReset DS system selections back to default2.10IntegratedThermostatt s tOFf*, OnOFfN/AIf ON, Install Integrated Thermostat TemperatureSensor and see No. 3.1 for more selections3. Integrated Thermostat selections will be available if No. 1.8 or 2.10 is set to 'ON'3.1Temperature UnitS C L3.2TemperatureOffsetO f s3.3Cycle Rate3.4Reset to DefaultoF*, oCoFN/AFahrenheit or Celsius-9 - 0* - 9 ( F) F-5 - 0* - 5 ( C) CThis is the desired temperature for the spacebeing heatedC Y CSLo, nornor*, FStN/ASlow, Normal, Fastt f dno*, yesnoN/AReset Integrated Thermostat selections to default40 - 80 6868* F5 - 27 2020* C(Set Point - Offset) cannot be less than 40 F (5 C) or greater than 80 F (27 C)Temperature Set Point Range****To view/change Set Point value, press OPTION after No. 3.4 (module exits menu and goes to standby), press OPTIONagain and the current Set Point will be shown. For further configuration, see Integrated Thermostat section on page 8.3
INSTALLATIONMOUNTING AND WIRING DIAGRAM5. Mount 50D50U-843 in the unit using mountingholes noted below. Be certain not to damage anycomponents such as transformers, wire harness orblower wheels when drilling or installing screws.6. Take note and match old control’s damper plug andflame sense operation with the new 50D50U-843. Example: if old module had damper plug andremote flame sensor installed, keep damperplug installed on 50D50U-843 and removejumper wire for remote flame sense.7. Plug 11-pin harness with wires transferred from oldmodule to new 50D50U-843. Ensure all wires aresecured to harness.8. Reconnect electric power to unit.9. If not using White-Rodgers Connect to configure,use 7-segment LED Display to change settingsto match old module. See page 2 on how to enterand operate Configuration menu and page 3 forexplanation of settings.10. Install Fault Code Label in a viewable location.11. Reinstall unit access panels and reconnect gassupply to the unit.12. Verify unit is operating correctly per theconfiguration selected.NOTE: All wiring should be installed according to localand national electrical codes and ordinances1. If using White-Rodgers Connect to configure,connect to app and configure settings of newmodule before installation. If not using app toconfigure, skip this step.2. Disconnect electrical power and gas supply to unit,then remove unit access panels.3. Individually disconnect and transfer each wire fromthe existing module and connect to appropriateQC terminal on 50D50U-843 11-pin harnessor dedicated spade terminals on 50D50U-843module. Once all wires have been transferred,remove existing module. TIP: first take pictures ofold setup for reference. Strip and re-wire 11-pin harness with provided3/16” loose QC terminals if necessary4. 50D50U-843 can be mounted in any orientation.Select a location that will not damage, obstruct orplace any stress on the terminations or harness.Ensure a clearance of ¼” between the sides ofmodule and grounded metal.Main Gas ValveMain/Pilot Valve CommonPilot Gas ValveIntegrated Thermostat Sensor Connector (AirT)(For Integrated Thermostat Functionality)BluetoothConnector2 Mountingholes matchFenwal 3560 and 35-61DSI seriesBurner Ground24VAC Hot24VAC Common2 Mountingholes matchHoneywellS8610U IPseriesPlace DeviceHereFlame SenseTest PinsRajah Spark OutputPressure SwitchTo Connect toWhite-RodgersConnectTH-WC/GNDRRAJAH SPARKSpade Spark OutputW Vent Damper Output(connect jumper plugif vent damper is notbeing used)W iguration &DiagnosticsUse either spark output on board.For spike/nail spark output, useprovided 14-16 AWG QC andshrink wrap sleeve to modifyspark wire in the systemSENSE (connectremote flame sensor)InducerOutput120V Input(For Inducer)Jumper Terminal(Connect to SENSE forLocal Flame Sense)Vent Damper Jumper Plug11-pin wire harness4Replace 1/4” terminals on 11-pinharness with 3/16” terminals ifconnection to unit wires requiresUse [4] provided 1”Screws to fastenmodule to unitUse Jumper Wire to jump SENSE andJUMPER terminals for Local FlameSense. Remove for Remote Flame Sense.
When replacing Honeywell S8610U – Intermittent Pilot (IP)Default Settings for 50D50U-843match S8610U Default SettingsFactory unit wires removedfrom replaced module 24VTH-W24V(GND)PVMVPVGNDMVMV/PV COMBRN GND24V**See note in yellow below**PSW24V COMSpade SparkTerminal on50D50U-843TH-WC/GNDRIMPORTANT: if replaced module does NOT havea wire on TH-W, connect wire from 24V (or TH)on replaced module to TH-W on 50D50U-843Other Setup Notes: Existing Module Being ReplacedMV/PV50D50U-843 11-pin harness assemblyWires from 50D50U-84311-pin harnessSENSE terminal on 50D50U-843Vent DamperConnector on50D50U-843Keep vent damper jumper plug installed on 50D50U-843 if replaced module has it installed When installing 50D50U-843 with this setup, leave 24V terminal on 50D50U-843 unconnected andinsulated (module will receive power from TH-W)To use module with a vent damper, remove vent damper jumper plug and connect damper harness assemblyto vent damper connector on 50D50U-843Once 50D50U-843 receives power with a vent damper connected, an internal circuit will open (non-reversible;module with the jumper plug will no longer work)If there is no TH-W terminal on the replaced module, connect the wire from 24V or 25V (2) terminal on oldmodule to TH-W on new 50D50U-843 and leave 24V on 50D50U-843 unconnected and insulatedFor systems with air proving switch (APS), connect output of APS to TH-W on 50D50U-843If default settings are not being used on replaced S8610U, match correct settings to 50D50U-843 throughWhite-Rodgers Connect App or 7-segment Configuration MenuFollow all safety guidelines on page 1 and directions under MOUNTING AND WIRING DIAGRAM on page 4Sequence of operation when 50D50U-843 is configured to replace S8610U:CONFIGURABLESTANDBY,NOTPOWEREDVENT DAMPER ERROR (AFTER 60 SECONDS)CALL FOR HEATRECEIVED FROMTHERMOSTATMODULERECEIVES POWER,RUNS SELF CHECKDAMPERCONNECTED?YESNO5 MINUTE RETRY DELAYIF CONFIGURED, BEGINPREPURGETRIAL FORIGNITIONSPARKONOPEN PILOTGAS VALVENOSPARKOFFOPEN MAINGAS VALVERUNCALL FORHEAT ENDS?NOFLAMELOST?YESCLOSE VENT DAMPERCLOSE MAIN GAS VALVE AND PILOT GAS VALVENODAMPERFUSE OPENSUPON FIRSTHEAT CALLDAMPEROPEN?YESSPARK OFFFLAMEPROVED?YESYESNOCLOSEPILOTVALVECLOSE MAIN GASVALVE AND PILOTGAS VALVE5
When replacing Fenwal 35-60 or 35-61 – Direct Spark Ignition (DSI)To Configure Module:1. Determine the configuration and timings forthe module being replaced. Can be found frommanufacturer literature or label on module.2. Use White-Rodgers Connect OR 7-segment LEDand follow Table 1 to select proper settings.Wires from 50D50U-84311-pin harnessRAJAH (or spade)spark terminal on50D50U-843Existing Module Being ReplacedFactory unit wires removedfrom replaced moduleV2S1 GNDSENSE terminalon 50D50U-84324VAC/RL1INDTH/NC V1/P1 PSW TS50D50U-843 11-pin harness assemblyMVMV/PV COMPVBRN GND24VL1 terminal on 50D50U-843PSWIND terminal on 50D50U-84324V COMALARM terminal on 50D50U-843TH-WC/GNDROther Setup Notes: If module being replaced does not have a terminal shown in the diagram above, leave that wire in the50D50U-843 11-pin harness unconnected and insulated to prevent possibility of a short-circuit For example, the 35-60 DSI series does not have 24VAC/R, so leave the 24V wire on 50D50U-843un-used when replacing any module in the 35-60 DSI series Follow all safety guidelines on page 1 and directions under MOUNTING AND WIRING DIAGRAM on page 4Sequence of operation when 50D50U-843 is Configured to Replace 35-60 or 35-61:CONFIGURABLEPSW STUCK CLOSED FAULTNOIS PRESSURESWITCH OPEN?YESPSW OPEN FAULTNOINDUCER ISENERGIZEDAUTO RESTART DELAYYESIS PRESSURESWITCH CLOSED?YESSTANDBYCALL FOR HEATRECEIVED FROMTHERMOSTATMODULEPERFORMSSELF CHECKNOIS PRESSURESWITCHCONFIGURED?IF CONFIGUREDINDUCER TURNS OFFBEGINPRE-PURGENOYESIS INTERPURGECONFIGURED?BEGIN INTER-PURGETRIAL FORIGNITION (TFI)SPARKONOPEN MAINGAS VALVENOFLAMEPROVEN?CLOSE GASVALVE,SPARK OFFYESIF CONFIGURED,INDUCER TURNS OFFSPARKOFFRUNCALL FORHEAT ENDS?NONOFLAMELOST?NOCOMPLETEFINAL TFIATTEMPT?YESYESBEGINPOSTPURGECLOSE MAINGAS VALVEYESIF CONFIGURED,BEGINPOST-PURGE6CLOSE MAINGAS VALVEYESIS 24V TERMINALCONNECTED?NOModule ISPOWERED FROMTH-W OR PSWGAS VALVE CLOSESAS Module POWERSOFF
TroubleshootingTable 2: 7-Segment Display CodesLED LED LED123STATUS CODESConditionComment/Troubleshoot StepCall for Heat (W) with Pre-Purge ActivehPrCall for Heat (W) with Inter-Purge ActivehIPPre-purge is the delay during a heat call before a sparkignition attemptInter-purge is the delay during a heat call in between spark ignitionattemptsCall for Heat (W) with Post-Purge ActivehPoPost-purge is the delay immediately after a heat call has endedCall for Heat (W) Trial for IgnitionPeriod ActivetFICall for Heat (W) after flame is activehtWeak Flame Signal SensedFLTFI is the time period in which the module attempts to spark forignitionAppears when flame is active during normal heat call; Toggleswith Weak Flame Signal (if applicable). When integrated thermostat ison, h t will toggle with temperature sensor readingoCheck flame probe, clean or replace probe if neededLEDs will be blank, wait for module to reset;if problem persists, replace moduleInternal Module ErrorGas Valve On (GV) ErrorFlame Sensed Out of SequenceFAULT CODESVent Damper ErrorLoss of IRQ signalFuse OpenNo Flame During TFIFlame Out During RunGas Valve Off ErrorGas Valve Off LockoutAir Temperature Sensor ErrorWrong 24VAC SupplyPressure Switch OpenPressure Switch Stuck 1210001 4 5 0 6 2 3 220819UnlockSettingsCheck Vent Damper and Vent Damper connectionsRecycle power and replace module if problem persistsReplace 5 amp ATC fuse (F1)Check ignition source, gas valve or flame probeCheck ignition source, gas valve or flame probeGas Valve off when it shouldn’t be, check GVExcessive GV off error, module will enter auto-restart delay and resetCheck Integrated Thermostat Sensor and AirT connectionCheck supply voltage source. Must be 18VAC and 30VACCheck Pressure Switch connectionCheck Pressure Switch connectionTH-W / Limit Open Errore13PSW Mis-wire ErroreE1Module is not receiving 24 V on TH-W terminal during integratedthermostat mode; Check system wiring, safety switches andconnection at W OUT / BLWR terminalModule has received 24V on PSW terminal when it shouldn't; Checkconfiguration and wiring at PSWConnectivity ErrorEC1Recycle power, if problem persists, use on board ndbyHold OPTIONand SELECTtogether2-5secondsLEDDisplayF L Tafter 2secondsAlternatesbetweenFaultCodeResetGV is on when it shouldn’t be, check GVCheck ignition source, gas valve or flame probeStandbyStandbyHold OPTIONand SELECTtogetherHold OPTIONand SELECTtogether5-10seconds10-20secondsExtra Notes A maximum of 5 error codes are stored in the sequence they occur Press OPTION button 1 second to advance to next fault code When OPTION button is pressed after last error code, LEDs returnto current status of unit E N o will be displayed if there are no error codes storedafter 5seconds Once both OPTION and SELECT are released after holding themtogether for 5-10 seconds, the LEDs will flash C L r 3 times toindicate the error codes have been successfully erased, module willthen return to current status Error codes are stored in the module’s memory for up to 14 days(error codes stored in systems powered by TH-W will have noexpiration)U n L C L randF L Tafter 10secondsAll settings on the control will lock after 10 consecutive calls for heatOnce both OPTION and SELECT are released after holding themtogether for 10-20 seconds, the LEDs will flash 3 times toindicate the settings have been unlockedNote: heat call is ignored when module is in Error Code Recall, Reset or Unlock Settings menu explainedabove7
Additional Wiring ScenariosDSI Edge Card ModelsFor Modules With a RolloutSwitchFor modules that have a separaterollout switch terminal, take the wireconnected to the rollout switch on theold ignition module and plug it into theTH-W terminal on the 50D50U-843 11pin harness.POWERTHNCVALVESENSEGROUNDGROUNDMVMV/PV COMOld ignition modulebeing replacedPVSENSEterminalon50D50U-843BRN GND24VCAUTIONHI VOLTAGE50D50U-843 11-pin harness assemblyALARM terminalon 50D50U-843ROPSW24V COMC/GNDR8.New50D50U-843ignition moduleIntegrated Thermostat FeatureFor radiant, infrared and tube heater applications onlyWiring Details:PVMV/PV COMF67-8535 IntegratedThermostat SensorMVConnect Spark, Inducer (if applicable)Purchase White-Rodgers Integrated Thermostat Sensor F67-8535BRN GNDand Flame Sensor (see page 4 for24VConnect sensor to AirT connector input on All-Spark boardadditional directions)PSWSecure sensor in desired heating location of space24V COMTH-WConfigure Integrated Thermostat settings through White-Rodgers ConnectTH-WC/GNDApp or 7-segment LED Display (see Table 1 on page 3)Install VentConnect W Out Terminal to input of safety chainW OUTDamperConnect Safety chain output to TH-W on 11-pin harnessJumper plug ifConnect power to the ignition moduleno vent damera. Note: if using 7-segment LED Display to configure,is used24V power must first be connected to module. FollowExternal Safety SwitchExternal Safety Switchall safety guidelines outlined on page 1 and wiringinstructions explained under MOUNTING AND WIRINGSafetySafetyChain InDIAGRAM on page 4Chain OutConnect gas and ensure unit is heating correctlyW OUT/BLW5.6.7.TH-WThese models have a unique edge card harness inthe OEM unit wiring. To connect 50D50U-843, cuteach individual wire from the edge card harness,attach ¼” QC spade terminal and connect directlyto 11-pin harness.All-SparkTM 50D50U-843 has been designed with a new integrated thermostatfeature that allows the module to create its own call for heat without using an externalthermostat in the system. This feature requires a dedicated 24V path wired to the50D50U-843 ignition module (24V terminal on 11-pin harness). This feature is onlydesigned for radiant, infrared and tube heat applications. Refer to diagram onthe right to properly wire all safety switches in the system. Steps to use integratedthermostat feature are listed below:1.2.3.4.ROLLOUT SWITCHSPADE TERMINALRAJAH (or spade) sparkterminal on 50D50U-843TH-WIMPORTANT: Connect W Out on 50D50U-843 module to input of safety switches(limit, rollout, etc.) and connect output of safety switches to TH-W on 50D50U-843How To View and Change Temperature Set Point (TSP):Temperature Range: 40 - 80 F (68 F is default) or 5 - 27 C (20 C is default)(Set Point - Offset) can't be less than 40 F (5 C) or greater than 80 F (27 C)ActionModule StatusButton PressDurationEnter TSP MenuIntegrated T-STAT ON, StandbyOPTION 3 secondsAdvance TSP 1 degreeTSP MenuSELECT 3 secondsRetreat TSP 1 degreeTSP MenuOPTION 3 secondsConfirm TSP selectionTSP MenuSELECT 3 secondsEnter Configuration MenuIntegrated T-STAT ON, StandbyOPTION 3 secondsCnF will display after 3 secondsIntegrated Thermostat Offset: Offset is most applicable when sensor is unable to beplaced in the desired heating location When sensor is in a location warmer than desired, usethe negative offset (if sensor is in location colder thandesired, use positive offset) Example: set point 65 F, actualtemperature of desired location 63 F,sensor reading 68 F, use an offset of -5 FTECHNICAL SUPPORT: 1-888-725-9797Emerson and White-Rodgers aretrademarks of Emerson Electric Co. 2021 Emerson Electric Co.All rights reserved.emerson.com/white-rodgers
1 - Installation Instructions ELECTRICAL SPECIFICATIONS Specification Value Unit Input Voltage 18-30 VAC Input Current Max 800 mA Line Frequency 50/60 Hz Inducer Relay at 120V 3.0/6.0 FLA/LRA Inducer Relay at 240V 1.5/3.0 FLA/LRA Main Gas Valve Relay Max (Direct Spark System Only) 4.0 Amp Main Gas Valve Relay Max (Inter-mittent Pilot .
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