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Lochinvar 51 operation manual 2Operating Instructions

Models: 51

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Lochinvar 51 operation manual 2Operating Instructions

Contents

Models 51 Contents When servicing boiler Please read before proceedingKnight Wall Mount Boiler How it works Stainless steel heat exchangerModels 51 Ratings Knight Wall Mount Boiler =B=R RatingDetermine boiler location Installation must comply withCloset and alcove installations Before locating the boiler, check1Closet Installation Minimum Required Clearances Wall mounting location Provide air openings to roomVent and air piping Prevent combustion air contaminationProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet Prepare boilerGas conversions Mounting to a metal studded wall Mounting the boilerMounting to a concrete wall Mounting to a wood studded wallGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Direct venting options Vertical Vent, Sidewall AirInstalling vent and air piping Install vent and combustion air pipingRequirements for installation in Canada PVC/CPVC Vent piping materialsApproved Stainless Steel Vent Manufacturers PVC/CPVC air intake/vent connectionsAir inlet pipe materials MakeBoiler Stainless steel ventBoiler Flue Boiler Flue Intake Air AdapterVent and air system Stainless steel air intake/vent connectionsRemoving from existing vent Vent, air piping and terminationOptional room air Model Kit Number KIT30051 Air contaminationVent/air termination sidewall If using the alternate sidewall terminationSidewall direct venting Vent Size2AClearance to Gravity Air Inlets Termination and fittings Prepare wall penetrationsPrepare wall penetrations Alternate Field Supplied Option Multiple vent/air terminationsSidewall termination optional concentric vent Sidewall termination installationDescription and usage 8Concentric Vent Dimensional Drawing Sidewall termination optional concentric vent models10Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 2Vertical Terminations with Multiple BoilersVertical termination installation Vertical termination optional concentric ventMultiventing vertical terminations Minimum Combustion AIR TypicalAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase AIR Inlet Flue Exhaust Seal CAP Existing Flue OutletHydronic piping Near boiler piping components Near boiler piping connections Circulator sizingMinimum Pipe Pump Size Grundfos ModelArmstrong Model Grundfos Variable speed pump setupVariable speed pump option UP26-96 FC/VS IFC VS Stratos 1.25 3 x3Single Boiler Single Temperature Zoned with Circulators Number of Units 5Single Boiler Multiple Temperatures Multiple Boilers Multiple Temperatures Model 8Single Boiler Zoned with Valves Model 10Single Boiler Non-Zoned Primary/Secondary Piping Connecting gas supply piping Gas connectionsNatural gas Propane GasCheck inlet gas supply Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas valve replacement Gas PressureLine voltage connections Field wiringInstallation must comply with Low voltage connectionsFlow switch Outdoor temperature sensorLouver proving switch ThermostatSystem supply sensor Alarm contactsWiring of the cascade Boiler management systemInstallation Condensate disposal Condensate drainCheck/control water chemistry Freeze protection when usedStart-up Fill and test water systemInspect/fill condensate system Clean/Inspect Trap AssemblyCheck for gas leaks Check thermostat circuits Inspect/check condensate lines and fittingsIf boiler does not start correctly Final checks before starting the boilerStart the boiler Check system and boiler2Operating Instructions Set space heating operation Natural Gas PropaneConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayInstaller Access modesUser Knight wall mount boiler control module 1Control PanelCall for Heat Information Right Select no Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check control settings Check ignition ground wiringCheck all boiler wiring Check expansion tankReview with owner Check flame signalCleaning boiler heat exchanger Oiled bearing circulatorsDiagrams PC Interface2Wiring Diagram Page Page