Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 45 The Solution - How it works, Models 135,000 - 260,000 Btu/hr Front View, 10 17

Models: 000 Btu/hr 45

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Installation & Service Manual

The Solution - How it works...

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Models 135,000 - 260,000 Btu/hr Front View

Models 135,000 - 260,000 Btu/hr Rear View

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Models 135,000 - 260,000 Btu/hr Right Side (inside unit)

Models 135,000 - 260,000 Btu/hr Left Side (inside unit)

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Lochinvar 45 service manual The Solution - How it works, Models 135,000 - 260,000 Btu/hr Front View, 10 17

Contents

Save this manual for future reference Models 45,000 - 260,000 Btu/hrSBR-I-SRev A Contents Hazard definitionsDANGER Warranty Please read before proceedingWhat to do if you smell gas Checking equipmentCodes Please read before proceedingRatings Solution Boiler I=B=R RatingOther Specifications Figure A High Altitude Label LocationThe Solution - How it works The Solution - How it works... continued Models 45,000 - 90,000 Btu/hr Front ViewModels 45,000 - 90,000 Rear View Models 45,000 - 90,000 Right Side inside unitThe Solution - How it works Models 135,000 - 260,000 Btu/hr Front ViewModels 135,000 - 260,000 Btu/hr Rear View 10 171Determine boiler location Location of unit1Determine boiler location Figure 1-3 CombustionAir Direct from OutsideFigure 1-4 CombustionAir Through Ducts Figure 1-5 CombustionAir from Interior Space1Determine boiler location continued 1Determine boiler location TABLE - 1B MINIMUM RECOMMENDED COMBUSTIONAIR SUPPLY TO EQUIPMENT ROOM TABLE - 2A VENT PIPE SIZES 2VentingA Conventional Negative Draft Venting System 2Venting Locate appliance as close as possible to a chimney or gas ventVertical Vent Termination Clearances Figure 2-2 VentTermination from Peaked Roof 10 orLess from Ridge from Parapet WallMasonry Chimney Installation Sidewall Venting - Negative DraftTABLE - 2B VENT MATERIALS Fan Assisted VentingAutomatic Vent Damper Protection3Gas connections Gas SupplyGas Pressure Test Gas Connection3Gas connections continued Gas PipingTABLE - 3E Install Piping to ControlGas Manifold Pressure Adjustment Procedure Figure 3-3 ManifoldPressure Adjustment3Gas connections Figure 3-2 WrenchFigure 3-4 GasSupply Pressure Checking Gas Supply Pressure3Gas connections continued Combination Gas Valves 3Gas connectionsVenting of Combination Gas Valves Figure 3-5 M9Gas ValveWater Flow Switch if equipped 4Water connectionsRelief Valve Figure 4-2 WaterFlow Switch - Top ConnectionsTypical Heating Boiler Installations Low Water Cutoff if equippedTABLE - 4A MINIMUM REQUIRED FLOW FOR HEATING BOILERTABLE - 4B SYSTEM TEMPERATURE RISE CHART 4Water connections continuedPiping of the Boiler System Based on Boiler Output in Btu/hrTABLE - 4C HEAT EXCHANGER PRESSURE DROP CHART Water ConnectionsCirculator Pump Requirements 4Water connectionsCirculator Pump Specifications Primary/Secondary Boiler PipingCirculator Pump Operation PERFORMANCE LOOPLow Temperature Bypass Requirements Primary/Secondary Boiler Piping continuedFull Flow Application Boiler Flow RatesPrimary / Secondary Piping SOLUTION BOILER4Water connections continued MAKE UP WATERLOW TEMPERATURE BYPASS SOLUTION BOILER4Water connections Primary / Secondary Piping4Water connections continued Primary / Secondary PipingFigure 4-6 MultipleBoilers Zoned with Circulators ZONE #1Full System Flow SOLUTION BOILER4Water connections Figure 4-7 SingleBoiler Full System FlowSOLUTION BOILER 4Water connections continuedFull System Flow MAKE UP WATER5Electrical connections TABLE - 5A TERMINAL STRIP WIRINGBoiler Operating Temperature Control Auxiliary Device Connection to Terminal StripTemperature Adjustment Pump Wiring for a Heating BoilerOperating Temperature Control Locating Temperature ControlTABLE - 5C MAXIMUM SET POINT DETERMINATION Maximum Set Point DeterminationTemperature Control Sensors Inlet Water Temperature SensorOutdoor Air Temperature Sensor Wiring of Remote SensorsInstallation of Remote Sensors Figure 5-4 Installationof Remote SensorsOutdoor Air Reset Option Additional Temperature ControlsFigure 5-5 OptionalOutdoor Air Reset Control Figure 5-6 OutdoorAir Control Example ChartFigure 5-7 BlockedVent Switch Location BLOCKED VENT SWITCH INVERTED TO SHOW RESET5Electrical connections continued UNDERNEATH DRAFT HOODFOR YOUR SAFETY READ BEFORE OPERATING Pre-startChecklist6Start-up Initial Start-upOperating Instructions To Turn Off Gas to ApplianceIntermittent Pilot Spark Ignition System Freeze ProtectionWater Treatment Ignition and Control Timings7Maintenance Maintenance and annual startup Service technicianOwner maintenance see the following pages for instructions7Maintenance Address reported problemsFlue vent system and air supply Inspect appliance areaCheck Relief Valve 7Maintenance continuedCheck Expansion Tank Check All Wiring Check Control SettingsHeat Exchanger / Burner Access Perform Start-upand ChecksBreathing Fresh air Inspection and Cleaning7Maintenance continued Review with owner Inspection of Heat Exchanger WaterwaysGas Train and Controls Water Circulating Pump8Troubleshooting Troubleshooting Guide M9 Solution BoilersStep Step9 Diagrams Schematic Diagram - M9 UnitWiring Diagram - M9 45,000 - 260,000 Btu/hr ModelsPage Revision A ECO #C03746 initial release SBR-I-SRev A 5/10