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Lochinvar WH 55-399 operation manual 2 Operating Instructions - Models 55, Start-up

Models: WH 55-399

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Installation & Operation Manual

10 Start-up

Figure 10-2Operating Instructions - Models 55 - 285

Page 60

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Lochinvar WH 55-399 operation manual 2 Operating Instructions - Models 55, Start-up

Contents

Installation & Operation Manual Models: WH 55 - WH-I-ORev HSave this manual for future reference Hazard definitions ContentsWhen servicing boiler – Please read before proceedingBoiler operation – Boiler water –The Knight Wall Mount Boiler - How it works Installation & Operation ManualModels 55 - Front ViewBottom View Left Side inside unitRatings Figure A High Altitude Label LocationOther Specifications Installation & Operation ManualRoom Volume Installation must comply withCloset and alcove installations Clearances for service accessInstallation & Operation Manual Note: Service clearances are recommendations only1 Determine boiler location Installation & Operation Manual Residential garage installationPrecautions 1 Determine boiler location continuedTable 1A Corrosive Contaminants and Sources Products to avoidAreas likely to have contaminants Installation & Operation ManualInstallation & Operation Manual 1 Determine boiler location continued2 Prepare boiler Remove boiler from wood palletGas conversions Figure 2-1 Boiler Mounted on Shipping PalletFigure 2-3 Installing Propane Orifice 2 Prepare boiler continuedMounting the boiler Mounting to a wood studded wall3 General venting Direct venting options - Sidewall VentInstall vent and combustion air piping Air intake/vent connectionsFigure 3-6 Near Boiler Air Piping CAUTION NOTICERequirements for installation in Canada SizingModel Kit Number3 General venting continued MaterialsAir inlet pipe materials DANGEROptional room air Air contaminationTable 3C Optional Room Air KitApproved PVC/CPVC Vent Pipe and Fittings PVC/CPVCTable 3D PVC/CPVC Vent Pipe, and Fittings ItemPolypropylene Centrotherm InnoFlue SWDuravent Polypro NOTICE NOTICEZ Flex Stainless steel ventFasNSeal Saf-TVentIf using the alternate sidewall termination 4 Sidewall direct ventingVent/air termination – sidewall Model4 Sidewall direct venting continued Figure 4-2A Clearance to Gravity Air InletsFigure 4-3A Clearance to Forced Air Inlets Installation & Operation ManualTable 4B Sidewall Vent Centerline Dimensions VentCenterline Width Prepare wall penetrationsMultiple vent/air terminations Installation & Operation Manual4 Sidewall direct venting continued Sidewall termination installation Sidewall termination – optional concentric ventDescription and usage Figure 4-6 Concentric Sidewall TerminationInstallation & Operation Manual 4 Sidewall direct venting continuedNOTICE NOTICEFigure 4-12 Concentric Vent Sidewall Attachment Multiventing sidewall terminationsInstallation & Operation Manual 4 Sidewall direct venting5 Vertical direct venting Vent/air termination – verticalPrepare roof penetrations Installation & Operation ManualVertical termination installation Figure 5-5 Do Not Install U-Bendto Rain CapVertical termination – optional concentric vent Prepare roof penetrations continuedFigure 5-6 Concentric Vent Roof Installation 5 Vertical direct venting continuedMultiventing vertical terminations NOTICEAlternate vertical concentric venting Vent / Air Inlet SizeMinimum Existing Vent / Chase Size6 Hydronic piping System water piping methodsGeneral piping information Low water cutoff deviceNear boiler piping components Boiler system pipingBoiler circulating pump 3. Domestic hot water circulating pump6 Hydronic piping continued Near boiler piping connectionsCirculator sizing Figure 6-1A Near Boiler Piping20F Temperature Rise Applications 25F Temperature Rise Applications35F Temperature Rise Applications Figure 6-2 Pressure Drop vs. FlowVariable speed pump setup Variable speed pump optionTable 6B Recommended Variable Speed Pumps Installation & Operation ManualInstallation & Operation Manual 6 Hydronic pipingINDIRECT NOTICEInstallation & Operation Manual 6 Hydronic piping continuedNOTICE ZONE #1Installation & Operation Manual 6 Hydronic pipingNOTICE INDIRECTNumber of Units Required Pipe SizesModel Installation & Operation Manual6 Hydronic piping Number of UnitsRequired Pipe Sizes ModelInstallation & Operation Manual 6 Hydronic piping continuedNOTICE BOILERRequired Pipe Sizes Installation & Operation Manual6 Hydronic piping Number of UnitsInstallation & Operation Manual 6 Hydronic piping continuedNOTICE NOTICE BOILER6 Hydronic piping NOTICE NOTICEZONE #1 ZONE #2 ZONE #3 ZONE#4Installation & Operation Manual 6 Hydronic piping continuedNOTICE NOTICE BOILERConnecting gas supply piping 7 Gas connectionsFigure 7-1 Gas Supply Piping Installation & Operation ManualFigure 7-2 Inlet Pipe with Backup Wrench 7 Gas connections continuedNatural gas Propane GasNatural Gas Pipe Capacity Chart Table 7A Natural Gas Pipe Size ChartCheck inlet gas supply Length of Pipe in Straight Feet for 1/2 PSIGas valve replacement Gas PressureDETAIL A Figure 7-3 Inlet Gas Supply Check8 Field wiring Installation must comply withFigure 8-2 Line Voltage Field Wiring Connections Figure 8-3 Routing Field Wiring8 Field wiring continued Louver proving switchFlow switch ThermostatAlarm contacts Wiring of the cascadeSystem supply sensor Boiler management systemInstallation FieldwiringcontinuedManual Operation9 Condensate disposal Condensate drainFigure 9-1 Condensate Disposal Installation & Operation ManualFreeze protection when used 10 Start-upCheck/control water chemistry Fill and test water systemClean/Inspect Trap Assembly Check for gas leaksInspect/fill condensate system Check thermostat circuitsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFigure 10-2 Operating Instructions - Models 55 - 10 Start-upFigure 10-3 Operating Instructions - Model Installation & Operation Manual10 Start-up continued Table 10A Flue Products Chart Adjust set point temperaturesCheck flame and combustion continued Set space heating operationConfiguration of the cascade NOTICESet domestic hot water DHW operation Verify DHW mode0 - 10V input set point or power 11 Operating informationGeneral How the boiler operatesProtection features Outdoor air reset11 Operating information continued Ramp delayRun-timeand alarm outputs Service reminderError logging High limit test procedureOutdoor reset operation, if used Reset curveCascade Low water cutoff protectionSequence of operation OPERATIONDISPLAY Installation & Operation ManualAccess modes InstallerUser Installation & Operation ManualKnight wall mount boiler control module Figure 11-1 Control PanelInstallation & Operation Manual 11 Operating informationIndicators Boiler StatusCall for Heat Status Display ScreensInformation OperationalStatus Display Screens cont’d 11 Operating informationDial Function key functionNAVIGATION RIGHT SELECT12 Maintenance Maintenance and annual startup Service technicianOwner maintenance Table 12A Service and Maintenance Schedules12 Maintenance continued Address reported problemsAnnual cleaning Inspect boiler area12 Maintenance Check ignition ground wiringCheck all boiler wiring Check control settingsCheck flame signal Cleaning boiler heat exchangerFigure 12-2 Burner Assembly Perform start-upand checks13 Diagrams Figure 13-1 Ladder DiagramInstallation & Operation Manual are connected or a fault condition is presentFigure 13-2 Wiring Diagram Installation & Operation Manual13 Diagrams continued LOW VOLTAGE 120 VAC HIGH VOLTAGERevision A ECO #C06854 initial release WH-I-ORev H 05/12