Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 1.5, 3.5, 2.5 service manual

Models: 3.5 2.5 1.5

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NOTES

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Contents

Models Hazard definitions DANGERContents REMOVAL OF COMBUSTION CHAMBER LINING Please read before proceedingHandling ceramic fiber materials NIOSH stated First AidBoiler water When servicing boilerBoiler operation Freeze protection fluidsMaintenance What is in this manual?Service Troubleshooting1 Service Boiler piping1 Service continued Home ScreenControl inputs 1 ServiceSMART CONTROL MODULE LOW VOLTAGE CONNECTION BOARD Control outputsSMART CONTROL MODULE LINE VOLTAGEAccess modes General Operation1 Service Figure 1-3 Password ScreenFigure 1-4 Setup Screen Figure 1-5 Initial Setup ScreenTo adjust and save parameters reference FIG Sequence of operation 1 ServiceTable 1A Sequence of Operation Parameter table DELAY 1 ServiceParameter table RAMPSETBACK SETUPParameter table SH NIGHTSETBACK 1 ServiceParameter table HWG NIGHTParameter table PUMPSA Initial Setup Viewable and changeable control parameters1 Service B Set PointsC Outdoor Reset Figure 1-6 Outdoor Air Reset CurveRamp Delay Enable / Disable 1 ServiceShift OA Reset Curve D Ramp DelayF Advanced Setup E BMS1 Service G/H SH/HWG Night SetbackCascade Offset I ModBusJ Cascade Minimum On/Off Time1 Service K PumpsService Notification Running Hours L Service NotificationService Notification in Months Service Notification Cycles1 Service Cascade Screen Figure 1-8 Cascade ScreenGraph Screen Figure 1-9 Graph Screen Parameter SelectionFigure 1-10 Graph Screen 1 Service History Screen Figure 1-11 History Screen Lockout FaultsFigure 1-12 Graph Screen Blocking Faults History Screen Figure 1-13 History Screen Runtime HistoryService Screen Figure 1-14 Service ScreenOwner maintenance 2 Maintenance Maintenance and annual startupService technician see the following pages for instructionsClean condensate trap 2 MaintenanceAddress reported problems Inspect boiler areaCheck water system 2 Maintenance continuedFlue vent system and air piping Check expansion tankCheck control settings Check ignition ground wiringCheck all boiler wiring Check flame signal2 Maintenance continued Cleaning boiler heat exchangerReview with owner Handling ceramic fiber materialsCheck the following 3 TroubleshootingBefore troubleshooting Check control module fusesCAUSE 3 Troubleshooting continuedFAULT CORRECTIVE ACTIONChecking temperature sensors 3 TroubleshootingTable 3E - Flue Sensor Resistance vs. Temperature Table 3F Troubleshooting Chart - Noisy System 3 Troubleshooting continuedFAULT CAUSECORRECTIVE ACTION FAULTDESCRIPTION 3 TroubleshootingDESCRIPTION 3 Troubleshooting continuedFAULT CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT CORRECTIVE ACTIONDESCRIPTION 3 Troubleshooting continuedFAULT CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT CORRECTIVE ACTIONFAULT Troubleshooting continuedDESCRIPTION CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT CORRECTIVE ACTIONDESCRIPTION 3 Troubleshooting continuedFAULT CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT CORRECTIVE ACTIONDESCRIPTION 3 Troubleshooting continuedFAULT CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT CORRECTIVE ACTIONDESCRIPTION 3 Troubleshooting continuedFAULT CORRECTIVE ACTION3 Troubleshooting Combustion Analysis ProcedurePOSSIBLE CAUSE CORRECTIVE ACTIONFigure 3-2 Gas Valve Adjustment Models 1.5 and Gas valve adjustment procedure3 Troubleshooting continued Figure 3-3 Gas Valve Adjustment ModelPage Page FB-SERRev B 7/11