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Lochinvar 801, 400 operation manual Direct venting options Vertical Vent

Models: 400 801

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Installation & Operation Manual

3 General venting
Direct venting options - Vertical Vent
	PVC/CPVC	Stainless Steel	PVC/CPVC
	Two Pipe	Two Pipe	Concentric
See Figure 5-1A		See Figure 5-1B	See Figure 5-5
			Models 400 - 601 Only
Direct venting options - Vertical Vent, Sidewall Air
	PVC/CPVC		Stainless Steel
	Vertical Vent, Sidewall Air		Vertical Vent, Sidewall Air
NOTICE	Stainless steel vent/air design and terminations will vary slightly by manufacturer.
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Lochinvar 801, 400 operation manual Direct venting options Vertical Vent

Contents

Models 400 Contents When servicing boiler Please read before proceedingKnight XL How it works Stainless steel heat exchangerModel Models 601 Ratings Knight XL Boiler =B=R RatingInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, checkAlcove Installation Residential garage installation Provide air openings to roomVent and air piping Flooring and foundationProducts 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 Model Models 601 Leveling the boilerGeneral venting Direct venting options Vertical Vent Install vent and combustion air piping Requirements for installation in CanadaInstalling vent or air piping General ventingPVC/CPVC air intake/vent connections Vent Pipe, and FittingsAir inlet pipe materials Stainless steel ventFasNSeal Saf-T Vent Stainless Steel Air Intake/vent ConnectionsOptional room air Removing from existing ventModel Description Kit Number Air contaminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Prepare wall penetrations Bird Screen TypicalMultiple vent/air terminations Prepare wall penetrations Alternate Field Supplied OptionTermination and ﬁttings Sidewall termination installation Description and usage9Concentric Vent Dimensional Drawing Models 400 11Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations Multiple vent/air terminationsVertical termination installation 4Concentric Vertical TerminationMultiventing vertical terminations Mm see -9,Alternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase 10Existing Vent as a ChaseHydronic piping System water piping methods General piping informationLow water cutoff device Chilled water systemHydronic piping Flow switch adjustment Near boiler piping componentsCirculator sizing Near boiler piping connectionsVariable speed pump option Pressure Head Feet20F 25F 30F 35F Model 7Single Boiler Multiple Temperatures 8Single Boiler Primary/Secondary Piping Number of Units Manifold Pipe Sizes in Inches mm10Multiple Boilers Primary/Secondary Piping Loop Connecting gas supply piping Gas connectionsNatural gas Propane GasCheck inlet gas supply InchesGas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections Low voltage connectionsOutdoor temperature sensor Louver proving switchHigh gas pressure switch Low gas pressure switchFlow switch Alarm contactsWiring of the cascade ModbusManual Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuitsInspect/ﬁll condensate system Inspect/check condensate lines and ﬁttingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Set space heating operation Natural Gas PropaneSet domestic hot water DHW operation Verify DHW modeConﬁguration of the cascade Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayStandby, ready to start a new cycle Knight XL control module Navigation DialInstaller Access modesUser Call for Heat Information Dial Function Service technician Maintenance Maintenance and annual startupInstructions Maintenance Address reported problemsClean condensate trap Check all piping for leaks Inspect boiler areaFlue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and ﬂame sense electrodesCheck ﬂame signal Cleaning boiler heat exchangerReview with owner Model Kit Part Component Number DescriptionDiagrams LOW Voltage 120 VAC High Voltage2Ladder Diagram Page KBXII-I-O Rev D