Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 51-211 operation manual 4 Low Voltage Field Wiring Connections, Field wiring continued

Models: 51-211

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Figure 8-4Low Voltage Field Wiring Connections

Installation & Operation Manual

8 Field wiring (continued)

Figure 8-4Low Voltage Field Wiring Connections

HEAT/LOOP	3	HEAT/LOOP	2	HEAT/LOOP	1
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Lochinvar 51-211 4 Low Voltage Field Wiring Connections, Field wiring continued, Installation & Operation Manual

Contents

WBII-I-O Rev Installation & Operation Manual Models 51Save this manual for future reference Contents Hazard definitionsDANGER CAUTION CAUTION NOTICEBoiler operation When servicing boilerInstallation & Operation Manual Please read before proceeding9. Temperature and pressure gauge field installed, not shown 2. Combustion chamber access cover7. Boiler outlet temperature sensor housed with high limit sensor 8. Boiler inlet temperature sensorBottom View The Knight Wall Mount Boiler - How it works... continuedModels 51 Front ViewFigure A High Altitude Label Location Other SpecificationsRatings Knight Wall Mount Boiler AHRI Rating1 Determine boiler location Installation must comply withCloset and alcove installations Clearances for service access1 Determine boiler location Figure 1-1 Closet Installation - Minimum Required ClearancesFigure 1-2 Alcove Installation - Minimum Required Clearances Installation & Operation Manual1 Determine boiler location continued Installation & Operation ManualResidential garage installation PrecautionsAreas likely to have contaminants When using an existing vent system to install a new boilerTable 1A Corrosive Contaminants and Sources Products to avoidInstallation & Operation Manual When removing a boiler from existing common vent system1 Determine boiler location continued Gas conversions Figure 2-2 Gas Valve Power Switch & Venturi Removal2 Prepare boiler Remove boiler from wood palletMounting to a wood studded wall Figure 2-3 Installing Propane Orifice2 Prepare boiler continued Mounting the boilerfor more details 3 General ventingDirect venting options - Sidewall Vent Direct venting options - Vertical VentFigure 3-6 Near Boiler Air Piping Install vent and combustion air piping3 General venting continued Air intake/vent connections2 Max Vent/Air Requirements for installation in CanadaSizing Model3 General venting continued MaterialsAir inlet pipe materials Installation & Operation ManualModel Optional room airAir contamination Table 3C Optional Room Air KitPVC/CPVC 2to 3 increaser are required to be CPVC when PVC/CPVC vent is usedFor installations using 2 vent, the first seven Approved PVC/CPVC Vent Pipe and FittingsApproved Polypropylene Vent Manufacturers PolypropyleneCentrotherm InnoFlue SW Table 3E Polypropylene Vent Pipe and FittingsStainless steel vent Heat FabZ Flex ProTechDetermine location If using the alternate sidewall termination4 Sidewall direct venting Vent/air termination - sidewallVent/air termination - sidewall 4 Sidewall direct venting continuedFigure 4-2A Clearance to Gravity Air Inlets Figure 4-3A Clearance to Forced Air InletsPrepare wall penetrations Alternate - Field Supplied Option Figure 4-4B Polypropylene Sidewall Termination AssemblyFigure 4-4A PVC/CPVC Sidewall Termination Assembly Prepare wall penetrationsInstallation & Operation Manual Multiple vent/air terminations4 Sidewall direct venting continued Description and usage Sidewall termination installationFigure 4-7 Kit Contents Sidewall termination - optional concentric ventInstallation & Operation Manual Figure 4-8 Concentric Vent Dimensional DrawingFigure 4-9 Rain Cap to Vent Pipe Alternate Assembly Sidewall termination - optional concentric vent modelsInstallation & Operation Manual Figure 4-10 Concentric Vent Sidewall AttachmentMultiventing sidewall terminations Figure 4-11 Concentric Vent and Combustion Air TerminationInstallation & Operation Manual 5 Vertical direct ventingVent/air termination - vertical Figure 5-1B Stainless Steel Vertical Termination of Air and Vent5 Vertical direct venting Prepare roof penetrationsFigure 5-2 Vertical Terminations with Multiple Boilers Figure 5-3 Alternate Vertical Terminations with Multiple BoilersVertical termination - optional concentric vent Vertical termination installationFigure 5-5 Do Not Install U-Bend to Rain Cap 5 Vertical direct venting continuedInstallation & Operation Manual Figure 5-6 Concentric Vent Roof InstallationMultiventing vertical terminations Figure 5-7 Concentric Vent and Combustion Air Vertical TerminationInlet Size Alternate vertical concentric ventingVent / Air Minimum Existing5 Vertical direct venting Existing vent as a chaseFigure 5-10 Existing Vent as a Chase Installation & Operation ManualLow water cutoff device 6 Hydronic pipingSystem water piping methods General piping informationBoiler system piping 12. System temperature sensorTemperature and pressure gauge Near boiler piping componentsFigure 6-1A Near Boiler Piping w/Y-Strainer 6 Hydronic piping continuedNear boiler piping connections Circulator sizingFigure 6-2 Pressure Drop vs. Flow - Models 51 20F Temperature Rise Applications25F Temperature Rise Applications 35F Temperature Rise ApplicationsPump Minimum Temperature RiseSMART SYSTEM / Multi-temperature loop control option Variable speed pump setupMAKE UP WATER Figure 6-3 Single Boiler - Single Temperature Zoned with CirculatorsInstallation & Operation Manual 6 Hydronic pipingInstallation & Operation Manual Number of UnitsModel Required Pipe Sizes24V SIGNAL TO Figure 6-5 Single Boiler - Multiple TemperaturesInstallation & Operation Manual WIRES6 Hydronic piping continued Figure 6-6 Multiple Boilers - Multiple TemperaturesRequired Pipe Sizes Installation & Operation ManualRequired Pipe Sizes Model6 Hydronic piping Number of UnitsBOILER Figure 6-8 Single Boiler Zoned with ValvesInstallation & Operation Manual 6 Hydronic piping continued6 Hydronic piping ModelFigure 6-9 Multiple Boilers Zoned with Valves Installation & Operation ManualBOILER Figure 6-10 Single Boiler - Non-Zoned Primary/Secondary PipingInstallation & Operation Manual 6 Hydronic piping continued7 Gas connections Connecting gas supply pipingFigure 7-1 Gas Supply Piping Propane Gas Figure 7-2 Inlet Pipe with Backup Wrench7 Gas connections continued Natural gasLength of Pipe in Straight Feet for 1/2 PSI Natural Gas Pipe Capacity ChartTable 7A Natural Gas Pipe Size Chart Check inlet gas supplyInstallation & Operation Manual Gas valve replacementGas Pressure Figure 7-3 Inlet Gas Supply CheckFigure 8-3 Routing Field Wiring 8 Field wiringInstallation must comply with Figure 8-2 Line Voltage Field Wiring ConnectionsFlow switch 8 Field wiring continuedOutdoor temperature sensor Louver proving switchBoiler management system Alarm contactsWiring of the cascade System supply sensor8 Field wiring continued Figure 8-4 Low Voltage Field Wiring ConnectionsInstallation & Operation Manual Installation & Operation Manual 9 Condensate disposalCondensate drain Figure 9-1 Condensate DisposalFill and test water system Freeze protection when used10 Start-up Check/control water chemistryInspect/fill condensate system Clean/Inspect Trap AssemblyCheck for gas leaks Check thermostat circuitsCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctlyInstallation & Operation Manual Figure 10-2 Operating Instructions10 Start-up Set space heating operation Table 10A Flue Products ChartAdjust set point temperatures Check flame and combustion continuedVerify DHW mode Set DHW boiler target temperatureConfiguration of the cascade Set domestic hot water DHW operationHow the boiler operates 0 - 10V input set point or power11 Operating information GeneralOutdoor air reset Temperature controlProtection features Ramp delayError logging Boiler temperature regulationRun-time and alarm outputs Service reminderSWITCHING ON SEQUENCE Outdoor reset operation, if usedTarget temperature with outdoor reset Reset curveInstallation & Operation Manual Sequence of operationOPERATION DISPLAYUser Access modesInstaller Sequence of operation continuedFigure 11-1 Control Panel Knight wall mount boiler control module11 Operating information continued Status Display Screens IndicatorsBoiler Status Call for HeatOperational Installation & Operation Manual11 Operating information continued InformationRIGHT SELECT Dial Functionkey function NAVIGATIONTable 12A Service and Maintenance Schedules 12 Maintenance Maintenance and annual startupService technician Owner maintenanceInspect boiler area 12 MaintenanceAddress reported problems Clean condensate trapCheck control settings 12 Maintenance continuedCheck ignition ground wiring Check all boiler wiringReview with owner Check flame signalCleaning boiler heat exchanger Figure 12-2 Burner Assembly12 Maintenance continued Table 12B Heat Exchanger Cleaning KitsOiled bearing circulators Figure 12-3 Rope Gasket - Heat Exchanger DoorFigure 13-1 Ladder Diagram 13 DiagramsPC INTERFACE LOW VOLTAGE Figure 13-2 Wiring Diagram13 Diagrams Installation & Operation ManualWBII-I-O Rev I 05/12 Revision I ECO #C10450 reflects changes made to Table 10A on page