Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 45, 000 Btu/hr, 000 - 260 service manual

Models: 000 Btu/hr 45

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Lochinvar 45, 000 Btu/hr, 000 - 260 service manual

Contents

Models 45,000 - 260,000 Btu/hr SBR-I-SRev ASave this manual for future reference Hazard definitions DANGERContents Checking equipment WarrantyPlease read before proceeding What to do if you smell gasPlease read before proceeding CodesFigure A High Altitude Label Location RatingsSolution Boiler I=B=R Rating Other SpecificationsThe Solution - How it works Models 45,000 - 90,000 Right Side inside unit The Solution - How it works... continuedModels 45,000 - 90,000 Btu/hr Front View Models 45,000 - 90,000 Rear View10 17 The Solution - How it worksModels 135,000 - 260,000 Btu/hr Front View Models 135,000 - 260,000 Btu/hr Rear ViewLocation of unit 1Determine boiler locationFigure 1-5 CombustionAir from Interior Space 1Determine boiler locationFigure 1-3 CombustionAir Direct from Outside Figure 1-4 CombustionAir Through Ducts1Determine boiler location continued TABLE - 1B MINIMUM RECOMMENDED COMBUSTION AIR SUPPLY TO EQUIPMENT ROOM1Determine boiler location 2Venting A Conventional Negative Draft Venting SystemTABLE - 2A VENT PIPE SIZES Locate appliance as close as possible to a chimney or gas vent 2Ventingfrom Parapet Wall Vertical Vent Termination ClearancesFigure 2-2 VentTermination from Peaked Roof 10 or Less from RidgeFan Assisted Venting Masonry Chimney InstallationSidewall Venting - Negative Draft TABLE - 2B VENT MATERIALSProtection Automatic Vent DamperGas Connection 3Gas connectionsGas Supply Gas Pressure TestInstall Piping to Control 3Gas connections continuedGas Piping TABLE - 3EFigure 3-2 Wrench Gas Manifold Pressure Adjustment ProcedureFigure 3-3 ManifoldPressure Adjustment 3Gas connectionsChecking Gas Supply Pressure 3Gas connections continuedFigure 3-4 GasSupply Pressure Figure 3-5 M9Gas Valve Combination Gas Valves3Gas connections Venting of Combination Gas ValvesFigure 4-2 WaterFlow Switch - Top Connections Water Flow Switch if equipped4Water connections Relief ValveFOR HEATING BOILER Typical Heating Boiler InstallationsLow Water Cutoff if equipped TABLE - 4A MINIMUM REQUIRED FLOWBased on Boiler Output in Btu/hr 4Water connections continuedPiping of the Boiler System TABLE - 4B SYSTEM TEMPERATURE RISE CHART4Water connections TABLE - 4C HEAT EXCHANGER PRESSURE DROP CHARTWater Connections Circulator Pump RequirementsPERFORMANCE LOOP Circulator Pump SpecificationsPrimary/Secondary Boiler Piping Circulator Pump OperationBoiler Flow Rates Primary/Secondary Boiler Piping continuedFull Flow Application Low Temperature Bypass RequirementsMAKE UP WATER Primary / Secondary PipingSOLUTION BOILER 4Water connections continuedMAKE UP WATER SOLUTION BOILER4Water connections Primary / Secondary PipingZONE #1 4Water connections continuedPrimary / Secondary Piping Figure 4-6 MultipleBoilers Zoned with CirculatorsFigure 4-7 SingleBoiler Full System Flow Full System FlowSOLUTION BOILER 4Water connectionsMAKE UP WATER SOLUTION BOILER4Water connections continued Full System FlowAuxiliary Device Connection to Terminal Strip 5Electrical connectionsTABLE - 5A TERMINAL STRIP WIRING Boiler Operating Temperature Control5Electrical connections continued Temperature AdjustmentPump Wiring for a Heating Boiler Temperature Control SettingsSet Point TABLE - 5C MAXIMUM SET POINT DETERMINATIONMaximum Set Point Determination 5Electrical connections5Electrical connections continued Wiring of Remote SensorsInstallation of Remote Sensors Figure 5-4 Installationof Remote SensorsFigure 5-6 OutdoorAir Control Example Chart Outdoor Air Reset OptionAdditional Temperature Controls Figure 5-5 OptionalOutdoor Air Reset ControlUNDERNEATH DRAFT HOOD Figure 5-7 BlockedVent Switch LocationBLOCKED VENT SWITCH INVERTED TO SHOW RESET 5Electrical connections continuedInitial Start-up FOR YOUR SAFETY READ BEFORE OPERATINGPre-startChecklist 6Start-upTo Turn Off Gas to Appliance Operating InstructionsIgnition and Control Timings Intermittent Pilot Spark Ignition SystemFreeze Protection Water Treatmentsee the following pages for instructions 7Maintenance Maintenance and annual startupService technician Owner maintenanceInspect appliance area 7MaintenanceAddress reported problems Flue vent system and air supply7Maintenance continued Check Expansion TankCheck Relief Valve Perform Start-upand Checks Check All WiringCheck Control Settings Heat Exchanger / Burner AccessInspection and Cleaning 7Maintenance continuedBreathing Fresh air Water Circulating Pump Review with ownerInspection of Heat Exchanger Waterways Gas Train and ControlsStep 8TroubleshootingTroubleshooting Guide M9 Solution Boilers Step45,000 - 260,000 Btu/hr Models 9 DiagramsSchematic Diagram - M9 Unit Wiring Diagram - M9Page SBR-I-SRev A 5/10 Revision A ECO #C03746 initial release