Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar 151 Cold Water Supply, Hot Water Supply, Storage Tank, Building Return, Water Heater

Models: 151

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Installation & Operation Manual

6 System piping

Figure 6-5Single Heater - Single Tank

FLOW CHECK

VALVE (TYPICAL)

COLD WATER

SUPPLY

MIXING VALVE

THERMOMETER

HOT WATER

SUPPLY

UNION (TYPICAL)

TEMPERATURE & PRESSURE RELIEF VALVE (TYPICAL)

STORAGE

TANK

DRAIN

BUILDING

RETURN

EXPANSION

TANK

WATER

HEATER

BALL VALVE (TYPICAL)

WATER

HEATER

CIRCULATOR

FLOW

SWITCH

Y-STRAINER [RECOMMENDED]

CAUTION

The piping will not support the weight of the water heater circulator pump. Do not attempt to support the weight of the water heater circulator pump with the piping or its accessories. Refer to the pump manufacturer’s installation instructions. Failure to comply could result in severe personal injury, death, or substantial property damage.

NOTICE

Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

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Lochinvar 151 Cold Water Supply, Hot Water Supply, Storage Tank, Building Return, Water Heater, System piping, Notice

Contents

Installation&OperationManual Models: 151 - AWII-I-ORev CWHAT TO DO IF YOU SMELL GAS Save this manual for future referenceHazard definitions DANGERCAUTION CAUTION NOTICE ContentsWhen servicing the water heater – Installation & Operation ManualPlease read before proceeding Water heater operation –The Armor Water Heater - How it works Installation & Operation ManualModels 151 - Rear View - Models 151 -Left Side inside unit - Models 151 - Rear View - ModelModels 400 - Models 601 -Rear View - Models 400 - Left Side inside unit - Models 400 -Notes RatingsInstallation & Operation Manual Installation must comply with Closet and alcove installationsClearances for service access 1 Determine water heater location1 Determine water heater location continued Installation & Operation ManualResidential garage installation PrecautionsProvide air openings to room Vent and air pipingTable 1A Corrosive Contaminants and Sources Products to avoidAreas likely to have contaminants 1 Determine water heater location continuedInstallation & Operation Manual 1 Determine water heater location2 Prepare water heater Gas conversionsRemove water heater from wood pallet Models 151 -Figure 2-3 Installing Propane Orifice - Model Figure 2-4 Gas Valve Adjustment - ModelModel Installation & Operation ManualFigure 2-5 Gas Valve Adjustment - Models 601 - 2 Prepare water heater continuedModels 601 - Leveling the water heater3 General venting Direct venting options - Sidewall Vent3 General venting continued Direct venting options - Vertical VentFigure 3-7 PVC/CPVC Vertical Vent, Sidewall Air Installation & Operation ManualInstall vent and combustion air piping Requirements for installation in CanadaInstalling vent or air piping PVC/CPVC Vent piping materialsPVC/CPVC Air intake/vent connections Table 3A Vent Pipe, and FittingsInstallation & Operation Manual 3 General venting continuedAir inlet pipe materials Stainless steel ventInstallation & Operation Manual 3 General ventingZ Flex ModelFasNSeal Saf-TVentKit Number Equivalent VentLength Removing from existing ventOptional room air Vent, air piping and terminationTable 3F Optional Room Air Kit DescriptionIf using the alternate sidewall termination 4 Sidewall direct ventingVent/air termination - sidewall Model4 Sidewall direct venting continued Figure 4-3A Clearance to Gravity Air InletsInstallation & Operation Manual Vent/air termination – sidewallFigure 4-5A Sidewall Termination Assembly Table 4B Sidewall Vent Centerline DimensionsVent Centerline WidthMultiple vent/air terminations Termination and fittingsInstallation & Operation Manual 4 Sidewall direct venting continuedSidewall termination installation Figure 4-8 Kit Contents_CVK3003 - Models 151 -Figure 4-9 Kit Contents_CVK3007 - Models 286 - Description and usageFigure 4-10 Concentric Vent Dimensional Drawing DimensionalFigure 4-11 Concentric VentFigure 4-13 Concentric Vent Sidewall Attachment Multiventing sidewall terminationsInstallation & Operation Manual 4 Sidewall direct venting5 Vertical direct venting Vent/air termination – verticalInstallation & Operation Manual Determine locationPrepare roof penetrations Multiple vent/air terminationsInstallation & Operation Manual 5 Vertical direct ventingVertical termination installation Figure 5-5 Do Not Install U-Bendto Rain Cap5 Vertical direct venting continued Figure 5-4 Concentric Vertical TerminationFigure 5-6 Concentric Vent Roof Installation Multiventing vertical terminationsInstallation & Operation Manual 5 Vertical direct ventingAlternate vertical concentric venting Vent / AirMinimum Existing Inlet SizeExisting vent as a chase Figure 5-10 Existing Vent as a ChaseInstallation & Operation Manual 5 Vertical direct ventingFlow switch and relief valve installation Flow switch adjustmentFigure 6-2 Flow Switch Adjustment 6 System pipingTemperature and pressure relief valve Temperature RiseScalding Piping components6 System piping continued Installation & Operation Manual140 HOT WATER SUPPLY LOW TEMPERATURE BUILDING HIGH TEMPERATURECOLD WATER SUPPLY HOT WATER SUPPLYSTORAGE TANK BUILDING RETURNFigure 6-6 Single Heater - Double Tank COLD WATER SUPPLYHOT WATER SUPPLY RETURNNumber of Units ModelRequired Pipe Sizes in NPT COLD WATERFigure 6-8 Double Heater - Double Tank Installation & Operation Manual6 System piping continued Number of UnitsConnecting gas supply piping 7 Gas connectionsFigure 7-1 Gas Supply Piping - Models Figure 7-3 Gas Supply Piping - ModelFigure 7-5 Inlet Pipe with Backup Wrench 7 Gas connections continuedNatural gas Propane gasTable 7A Natural Gas Pipe Size Chart Natural Gas Pipe Capacity ChartCheck inlet gas supply Single UnitGas valve replacement Gas pressureFigure 7-6 Inlet Gas Supply Check - Models 151 - Figure 7-7 Inlet Gas Supply Check - Model8 Field wiring Installation must comply withFigure 8-1 Line Voltage Field Wiring Connections Figure 8-2 Routing Field Wiring Models 151 -8 Field wiring continued Low gas pressure switchLouver proving switch High gas pressure switchAlarm contacts Wiring of the cascadeRuntime contacts 8 Field wiring8 Field wiring continued Figure 8-3 Low Voltage Field Wiring ConnectionsInstallation & Operation Manual 9 Condensate disposal Condensate drainFigure 9-1 Condensate Disposal Installation & Operation Manual10 Start-up Check for gas leaksInspect/fill condensate system Chlorine concentration less than 200 ppmFinal checks before starting the water heater Start the water heaterIf water heater does not start correctly Check system and water heaterFOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONSTO TURN OFF GAS TO APPLIANCE Figure 10-2 Operating Instructions - Models 151 -Installation & Operation Manual Figure 10-3 Operating Instructions - Models 400 -10 Start-up Table 10A Flue Products Chart Set tank set point temperatureCheck flame and combustion continued Set water heater operationConfiguration of the cascade Set clock10 Start-up NOTICETemperature control Protection features0 - 10VDC input set point or power 11 Operating informationWater heater temperature regulation Runtime and alarm outputsService reminder Error loggingAccess modes Installer11 Operating information continued CascadeSequence of operation OPERATIONDISPLAY 11 Operating informationArmor water heater control module Figure 11-1 Control PanelInstallation & Operation Manual NAVIGATION DIAL PRESS OR TURN RESET KEYIndicators Water heaterCall for Heat Status BarInformation key functionOperational LEFT SELECTDial Function key functionNAVIGATION RIGHT SELECT12 Maintenance Maintenance and annual startup Service technicianOwner maintenance Table 12A Service and Maintenance Schedules12 Maintenance Address reported problemsClean condensate trap Inspect water heater area12 Maintenance continued Check ignition ground wiringCheck all water heater wiring Check control settingsCheck flame signal Cleaning heat exchangerFigure 12-2 Burner Assembly Perform start-upand checksTable 12B Heat Exchanger Cleaning Kits Check Delta TOiled bearing circulators Part13 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 VOLTAGEInstallation & Operation Manual Installation & Operation Manual AWII-I-ORev C 4/11