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Lochinvar 402 - 2072 service manual Display panel menu access, Service continued

Models: 402 - 2072

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Copper-fin II/IIE Boiler and Water Heater Service Manual

1 Service (continued)

Display panel menu access

Table 1B_Use this procedure to access menus from the display panel

Note: Not all menu listings shown above are available on water heaters.

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Lochinvar 402 - 2072 service manual Display panel menu access, Service continued

Contents

Save this manual for future reference Copper-finII/IIE Boiler and Water HeaterCFX-CHX-SERRev B Contents Hazard definitionsDANGER Appliance operation When servicing appliancePlease read before proceeding Handling ceramic fiber materialsTroubleshooting What is in this manual?Service MaintenanceThe Copper-findisplay 1 Service1 Service Control inputs1 Service continued Control outputsHow the appliance operates General Operation1 Service InstallerDISPLAY Sequence of operationOPERATION DISPLAY 1 ServiceSequence of operation OPERATION1 Service continued Display panel menu accessCascade Display panel parameter access1 Service ONLY Parameter table A - Boiler Operation1 Service continued 1 Service Parameter table A - Boiler Operation continued1 Service continued Parameter table B - Water Heater Operation1 Service User code Viewable and changeable control parametersTemperature settings GeneralClear error log 1 ServiceManual reset high limit Auto reset high limit boiler onlyFreeze protection pump on DHW settingsDHW/SH switching time boiler only SH/DHW switching time boiler onlyOutdoor air reset operation 1 ServiceOutdoor air reset boiler only Figure 1-1 OutdoorAir Reset CurveBoost temperature Shift reset curveAnti-cycling Outdoor air shutdown differentialControl modes 1 ServiceEnable input active / inactive ModBus timeoutCascade Minimum powerMaximum power Building Management System BMSService interval run 1 ServiceService Notification Service interval time monthssee the following pages for instructions 2 Maintenance Maintenance and annual startupService technician Owner maintenanceInspect appliance interior 2 MaintenanceAddress reported problems Inspect appliance areaInspect/replace hot surface igniter 2 Maintenance continuedCheck relief valve Inspect/replace hot surface ignitersPerform start-upand checks Check all wiringCheck control settings Inspect and clean burner2 Maintenance continued All models Adjusting combustion air pressureChecking manifold gas pressure 2 MaintenanceRegulator Pressure Less Front Chamber Pressure 2 Maintenance continuedTABLE 2B Net Manifold Pressure 2 Maintenance Inspect and clean the heat exchangerReview with owner Oiled bearing circulatorsCheck the following 3 TroubleshootingBefore troubleshooting Check control module fuses3 Troubleshooting FAULTCAUSE CORRECTIVE ACTIONWire Color - Bk and G 3 Troubleshooting continuedChecking temperature sensors Wire Color - R and WCAUSE 3 TroubleshootingFAULT Table 3D Troubleshooting Chart - Noisy SystemFlow Switch DESCRIPTION3 Troubleshooting continued FAULTGas Connections Section in the Installation and 3 TroubleshootingFAULT ErrorGas Connections Section of the Installation and 3 Troubleshooting continuedFAULT Auto Resetthe RESET button on 3 TroubleshootingFAULT Manual ResetCORRECTIVE ACTION 3 Troubleshooting continuedFAULT DESCRIPTIONCORRECTIVE ACTION 3 TroubleshootingFAULT DESCRIPTIONWatch Dog Error 3 Troubleshooting continuedFAULT Service BlkCFX-CHX-SERRev B 11/12