Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 81 - 286 operation manual

Models: 81 - 286

1 80

Download 80 pages 14.57 Kb

Page 79

Installation & Operation Manual

Notes

79

Image 79

Lochinvar 81 - 286 operation manual

Contents

Models 81 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Knight Boiler How it worksModels 81 Model Knight Boiler =B=R Rating RatingsBefore locating the boiler, check Installation must comply withCloset and alcove installations Determine boiler location1Closet Installation Minimum Required Clearances Flooring and foundation Residential garage installationProvide air openings to room Vent and air pipingProducts 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 Leveling the boiler Prepare boilerRemove boiler from wood pallet Gas conversionsDirect venting options Sidewall Vent General ventingDirect venting options Vertical Vent, Sidewall Air Direct venting options Vertical VentPVC/CPVC vent piping materials Install vent and combustion air pipingRequirements for installation in Canada Installing vent and air pipingVent Pipe, and Fittings PVC/CPVC air intake/vent connectionsStainless steel vent Air inlet pipe materialsBoiler Boiler FlueBoiler Flue Intake Air Adapter Termination Length Optional room airRemoving from existing vent Determine location If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall2AClearance to Gravity Air Inlets Prepare wall penetrations Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations Termination and fittingsSidewall termination optional concentric vent Sidewall termination installationDescription and usage 10 Concentric Multiventing sidewall terminations 12Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Boilers Prepare roof penetrations Multiple vent/air terminationsVertical termination optional concentric vent Vertical termination installationMultiventing vertical terminations 6Concentric Vent Roof InstallationConcentric Venting Arrangement Alternate vertical concentric venting10Existing Vent as a Chase Existing vent as a chaseHydronic piping Near boiler piping components Strainer Near boiler piping connectionsCirculator sizing Indirect water heatersMinimum Pipe Pump Size Grundfos FeetPressure ModelVariable speed pump option Variable speed pump setupUP26-96 FC/VS IFC VS Stratos 1.25 3 x 4Single Boiler Single Temperature Zoned with Circulators Number of Units 6Single Boiler Multiple Temperatures Number of Units Model Required Pipe Sizes MAY Substitute Number of Units Model 10Multiple Boilers Non-Zoned Primary/Secondary Piping Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply Single Unit Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsLow gas pressure switch Outdoor temperature sensorLouver proving switch High gas pressure switchModBus Flow switchAlarm contacts Wiring of the cascadeManual Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Check for gas leaksCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctly2Operating Instructions Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation General Operating informationProtection features Boiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationStandby, ready to start a new cycle Navigation Dial Knight boiler control moduleInstaller Access modesUser Call for Heat Information Dial Function See the Knight User’s Information Manual for Instructions Maintenance Maintenance and annual startupService technician Owner maintenanceCheck expansion tank MaintenanceFlue vent system and air piping Check water systemInspect boiler interior Address reported problemsClean condensate trap Inspect boiler areaCheck flame signal Check ignition ground wiringCheck all boiler wiring Check control settingsKit Part Component Number Description Cleaning boiler heat exchangerReview with owner Oiled bearing circulatorsPC Interface Diagrams2Wiring Diagram