Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar SNR200-100, SNA500-125, SNA285-125, SNR150-100 Start-up, Installation & Service Manual

Models: SNA400-125 SNR150-100 SNA285-125 SNR200-100 SNA500-125

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Installation & Service Manual

10 Start-up

Figure 10-3Operating Instructions - Models SNA400-125 -- SNA500-125

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Lochinvar SNR200-100, SNA500-125, SNA285-125, SNR150-100, SNA400-125 service manual Start-up, Installation & Service Manual

Contents

SNA285-125, SNA400-125,AND SNA500-125 Installation & Service ManualModels: SNR150-100, SNR200-100 SWH-I-SRev DContents Hazard definitions When servicing the water heater –Please read before proceeding Water heater operation –The Shield - How it works Installation & Service ManualInstallation & Service Manual The Shield - How it works... continuedModels SNR150-100 -- SNA285-125 Front View - Models SNR150-100 -- SNA285-125Installation & Service Manual Model SNA400-125Model SNA500-125 The Shield - How it worksHIGH ALTITUDE RatingsInstallation & Service Manual NotesInstallation must comply with 1Determine water heater locationInstallation & Service Manual Closet and alcove installations1Determine water heater location continued Installation & Service ManualFlooring and foundation Installation & Service Manual1Determine water heater location Remove water heater from wood palletDo not install the Shield water heater into Installation & Service Manual1Determine water heater location continued Figure 1-3_CombustionAir Direct from Outside Installation & Service Manual1Determine water heater location Figure 1-4_CombustionAir Through Ducts1Determine water heater location continued TABLE - 1B MINIMUM RECOMMENDED COMBUSTION2General venting Direct venting optionsVenting and combustion air Standards for installation in2General venting continued MaterialVent ModelAir Intake Installation & Service ManualInstallation & Service Manual EquivalentNumber 2General venting continuedKit Number 3Sidewall direct ventingVent/air termination - sidewall Installation & Service ManualVent/air termination – sidewall 3Sidewall direct venting continuedInstallation & Service Manual Figure 3-2 Clearance to Gravity Air Inlets3Sidewall direct venting Installation & Service ManualFigure 3-4A Sidewall Termination Assembly Prepare wall penetrationsMultiple vent/air terminations 3Sidewall direct venting continuedVent/air termination – sidewall VENTSidewall termination installation Sidewall termination - optional concentric ventInstallation & Service Manual Figure 3-7 Kit Contents_CVK3003 - SNR150-100Dimensional Installation & Service ManualFigure 3-9 Concentric Vent Dimensional Drawing 3Sidewall direct venting continuedSidewall termination – optional concentric vent Installation & Service Manual3Sidewall direct venting Figure 3-12 Concentric Vent Sidewall AttachmentInstallation & Service Manual 4Vertical direct ventingVent/air termination – vertical Determine locationVent/air termination – vertical Installation & Service Manual4Vertical direct venting Prepare roof penetrationsInstallation & Service Manual 4Vertical direct venting continuedVertical termination - optional concentric vent Vertical termination installation4Vertical direct venting Installation & Service ManualFigure 4-6 Concentric Vent Roof Installation Vertical termination – optional concentric ventFigure 5-1 Vertical Direct Venting w/Room Air 5Conventional and sidewall ventingInstallation & Service Manual Figure 5-2 Sidewall Direct Venting w/Room AirScalding 6System pipingSystem water piping methods General piping informationRELATIONSHIPS IN SCALDS APPROXIMATE TIME / TEMPERATURE6System piping continued Installation & Service ManualFigure 6-2 Single Unit Installation & Service Manual6System piping COLD WATER SUPPLY FLOW CHECK VALVE TYPICALFigure 6-3 Multiple Units Installation & Service Manual6System piping continued COLD WATER SUPPLYFLOW CHECK VALVE TYPICALHIGH TEMPERATURE BUILDING RETURN Installation & Service ManualFigure 6-4 Two Temperature - Single Unit LOW TEMPERATURE BUILDING RETURN7Gas connections Connecting gas supply pipingInstallation & Service Manual Installation & Service Manual Natural gasPropane gas Figure 7-3 Inlet Pipe with Backup WrenchTable 7A Natural Gas Pipe Size Chart 7Gas connections continuedCheck inlet gas supply Natural Gas Pipe Capacity ChartGas pressure Gas valve replacement7Gas connections DETAILPower cord connection 8Field wiringInstallation must comply with Auxiliary device proving switchFigure 8-3 Low Voltage Field Wiring Connections 8Field wiringInstallation & Service Manual ALARM BELLINPUTS 8Field wiring continuedInstallation & Service Manual CONTROL BOARDInstallation & Service Manual 9Condensate disposalCondensate drain 1/2” 12.7 mm PVC TEE ASSEMBLY FACTORY SUPPLIEDCheck for gas leaks 10 Start-upInstallation & Service Manual Inspect/fill condensate system10 Start-up Installation & Service ManualTable 10A Flue Products Chart Start the water heaterInstallation & Service Manual 10 Start-up continuedInstallation & Service Manual 10 Start-upTemperature control 11 Operating informationGeneral Protection featuresAdjustable control parameters Installation & Service ManualWater heater temperature regulation Operating temperature targetOPERATION 11 Operating information continuedSequence of operation DISPLAY11 Operating information Shield control moduleInstallation & Service Manual Figure 11-1 Control PanelScreen Status display screensStatus Display Screens Display shows11 Operating information Status Display Screens cont’dInstallation & Service Manual ScreenOwner maintenance 12 Maintenance Maintenance and annual startupService technician see the following pages for instructionsClean condensate trap 12 MaintenanceAddress reported problems Inspect water heater areaCheck water system 12 Maintenance continuedFlue vent system and air piping Check expansion tankCheck control settings Check ignition ground wiringCheck all water heater wiring Check flame signalOiled bearing circulators Cleaning heat exchangerHandling ceramic fiber materials 12 Maintenance continuedCheck control module fuses 13 TroubleshootingBefore troubleshooting Check the followingCAUSE 13 Troubleshooting continuedFAULT CORRECTIVE ACTIONInstallation & Service Manual Checking temperature sensors13 Troubleshooting Temperature FCORRECTIVE ACTION FAULTCAUSE Troubleshooting continuedFAULT DESCRIPTION13 Troubleshooting Installation & Service ManualInstallation & Service Manual 13 Troubleshooting continuedFAULT reset once theInstallation & Service Manual 13 TroubleshootingFAULT Manual ResetInstallation & Service Manual 13 Troubleshooting continuedFAULT SwitchInstallation & Service Manual 13 TroubleshootingFAULT reset once the conditionInstallation & Service Manual 13 Troubleshooting continuedFAULT Service Blk13 Troubleshooting Combustion Analysis ProcedurePOSSIBLE CAUSE Installation & Service ManualInstallation & Service Manual Gas valve adjustment procedure13 Troubleshooting continued Figure 13-3 GasValve Adjustment: Model SNA400-125Figure 14-1 Ladder Diagram 14 DiagramsInstallation & Service Manual are connected or a fault condition is presentLOW VOLTAGE Installation & Service ManualFigure 14-2 Wiring Diagram 120 VACSWH-I-SRev D 3/09