Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 400-801 operation manual

Models: 400-801

1 56

Download 56 pages 37.3 Kb

Page 56

Revision Notes: Revision A (ECO #C11234) initial release.

Revision B (ECO #C11235) reﬂects updates made to the freezing conditions warnings.

OKBX-I-O Rev B

10/12

Image 56

Lochinvar 400-801 operation manual

Contents

Outdoor Knight XL Models 400 Contents When servicing boiler Please read before proceedingOutdoor Knight XL How it works Stainless steel heat exchangerModel Models 601 Ratings Outdoor Knight XL Boiler Ahri RatingBefore locating the boiler, check Installation must comply withDetermine boiler location Provide clearances Outdoor vent / air intake locationFlooring and foundation Prevent combustion air contaminationRemove boiler from wood pallet Install ﬂue pipe assembly Models 400Prepare boiler 3Install ﬂue pipe assembly Models 701 Models 7014Installing Propane Oriﬁce Model Gas conversions ModelModels 601 Leveling the boilerHydronic piping TEE with 1 Fitting on TOP Nipple Close Nipple Flow switch adjustment Near boiler piping componentsVariable speed pump option Near boiler piping connectionsCirculator sizing 20F 25F 30F 35F Model Head FeetPressure 7Single Boiler Multiple Temperatures 8Single Boiler Primary/Secondary Piping Number of Units Manifold Pipe Sizes in Inches mm10Multiple Boilers Primary/Secondary Piping Temperature Wires to Loop Sensors 120VAC to 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 High gas pressure switchLow gas pressure switch ThermostatFlow switch Alarm contactsWiring of the cascade ModBus3Low Voltage Field Wiring Connections 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 PropaneConﬁguration of the cascade Verify DHW modeSet domestic hot water DHW operation Operating information GeneralHow the boiler operates How the control module operatesTemperature control Protection featuresBoiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayStandby, ready to start a new cycle Access modes InstallerOutdoor Knight XL control module UserCall for Heat Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Flue 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 High Voltage2Ladder Diagram