Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 50-210 Control inputs, Smart Control Module, Service Manual, Pc Interface

Models: 50-210

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1Service

Control inputs

GAS PRESSURE SWITCH

DHW THERMOSTAT

ROOM THERMOSTAT /

ZONE CONTROL

FLOW SWITCH

SYSTEM SENSOR

OUTDOOR SENSOR

SEQUENCER / BUILDING

MANAGMENT SYSTEM

LOW WATER CUTOFF

INLET TEMPERATURE

SENSOR

OUTLET TEMPERATURE /

HIGH LIMIT SENSOR

FLUE GAS SENSOR

AIR PRESSURE SWITCH

FLAME SENSOR

BLOCKED DRAIN SWITCH

DISPLAY PANEL

PC INTERFACE

Service Manual

LOW VOLTAGE

CONNECTION

BOARD

SMART CONTROL

MODULE

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Lochinvar 50-210 Control inputs, Smart Control Module, Service Manual, Low Voltage Connection Board, Pc Interface

Contents

Service Manual ModelsContents Hazard definitionsDANGER Please read before proceeding Handling ceramic fiber materialsService Manual REMOVAL OF COMBUSTION CHAMBER LININGWhen servicing boiler Boiler operationBoiler water Freeze protection fluidsWhat is in this manual? ServiceMaintenance TroubleshootingService Manual 1 ServiceNear boiler piping 1 Service continued The Knight wall mount displayService Manual Control inputs 1 ServiceService Manual GAS PRESSURE SWITCH DHW THERMOSTAT ROOM THERMOSTAT ZONE CONTROL1 Service continued Control outputsService Manual General Operation 1 ServiceService Manual InstallerDISPLAY Sequence of operationOPERATION Sequence of operation continued 1 ServiceService Manual OPERATIONDisplay panel menu access Service ManualTable 1B Use this procedure to access menus from the display panel 1 Service continuedService Manual Display panel parameter access1 Service 1 Service continued Parameter tableService Manual Service Manual Parameter table continued1 Service Viewable and changeable control parameters 1 ServiceB Temperature settings A General1 Service E DHW settingsF Outdoor air reset C Data loggingService Manual Figure 1-1 Outdoor Air Reset CurveShift reset curve Maximum SH set point1 Service Service ManualG Anti-cycling Boost temperatureService Manual H Control modesFigure 1-2 Ramp Delay Interval SH controlling sensor1 Service Service ManualJ Service Notification Cascade offset2 Maintenance Maintenance and annual startup Service technicianOwner maintenance see the following pages for instructions General2 Maintenance Address reported problemsClean condensate trap Inspect boiler area2 Maintenance continued Flue vent system and air pipingCheck water system Check expansion tankCheck ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Oiled bearing circulators3 Troubleshooting Before troubleshootingCheck control module fuses Check the following3 Troubleshooting continued FAULTCAUSE CORRECTIVE ACTIONChecking temperature sensors 3 TroubleshootingService Manual Table 3B - Inlet/Outlet System Sensor Resistance vs. Temperature3 Troubleshooting continued FAULTService Manual Table 3E Troubleshooting Chart - Noisy SystemDESCRIPTION 3 TroubleshootingFAULT Switch/LWCO3 Troubleshooting continued FAULTService Manual DESCRIPTION3 Troubleshooting FAULTService Manual DESCRIPTION3 Troubleshooting continued FAULTAuto Reset DESCRIPTION3 Troubleshooting FAULTDESCRIPTION CORRECTIVE ACTION3 Troubleshooting continued FAULTService Manual DESCRIPTION3 Troubleshooting FAULTService Manual DESCRIPTION3 Troubleshooting continued FAULTService Manual Service BlkCombustion Analysis Procedure POSSIBLE CAUSE3 Troubleshooting Table 3G Troubleshooting Chart - Combustion LevelsGas valve adjustment procedure 3 Troubleshooting continuedService Manual Figure 3-2 Gas Valve Adjustment4 Notes Service ManualService Manual 4 NotesWB-SER-Rev C 11/08