Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar service manual Models 45,000 - 260,000 Btu/hr, SBR-I-SRev A

Models: 000 Btu/hr 45

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SBR-I-S Rev A

Installation & Service Manual

Models: 45,000 - 260,000 Btu/hr

WARNING:

This manual supplies information for the installation, operation, and servicing of the appliance. It is strongly recommended that this manual be reviewed completely before proceeding with an installation. Perform steps in the order given. Failure to comply could result in severe personal injury, death, or substantial property damage.

Save this manual for future reference.

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Lochinvar service manual Models 45,000 - 260,000 Btu/hr, SBR-I-SRev A, Save this manual for future reference

Contents

SBR-I-SRev A Models 45,000 - 260,000 Btu/hrSave this manual for future reference DANGER Hazard definitionsContents Please read before proceeding WarrantyWhat to do if you smell gas Checking equipmentPlease read before proceeding CodesSolution Boiler I=B=R Rating RatingsOther Specifications Figure A High Altitude Label LocationThe Solution - How it works Models 45,000 - 90,000 Btu/hr Front View The Solution - How it works... continuedModels 45,000 - 90,000 Rear View Models 45,000 - 90,000 Right Side inside unitModels 135,000 - 260,000 Btu/hr Front View The Solution - How it worksModels 135,000 - 260,000 Btu/hr Rear View 10 17Location of unit 1Determine boiler locationFigure 1-3 CombustionAir Direct from Outside 1Determine boiler locationFigure 1-4 CombustionAir Through Ducts Figure 1-5 CombustionAir from Interior Space1Determine boiler location continued AIR SUPPLY TO EQUIPMENT ROOM TABLE - 1B MINIMUM RECOMMENDED COMBUSTION1Determine boiler location A Conventional Negative Draft Venting System 2VentingTABLE - 2A VENT PIPE SIZES Locate appliance as close as possible to a chimney or gas vent 2VentingFigure 2-2 VentTermination from Peaked Roof 10 or Vertical Vent Termination ClearancesLess from Ridge from Parapet WallSidewall Venting - Negative Draft Masonry Chimney InstallationTABLE - 2B VENT MATERIALS Fan Assisted VentingProtection Automatic Vent DamperGas Supply 3Gas connectionsGas Pressure Test Gas ConnectionGas Piping 3Gas connections continuedTABLE - 3E Install Piping to ControlFigure 3-3 ManifoldPressure Adjustment Gas Manifold Pressure Adjustment Procedure3Gas connections Figure 3-2 Wrench3Gas connections continued Checking Gas Supply PressureFigure 3-4 GasSupply Pressure 3Gas connections Combination Gas ValvesVenting of Combination Gas Valves Figure 3-5 M9Gas Valve4Water connections Water Flow Switch if equippedRelief Valve Figure 4-2 WaterFlow Switch - Top ConnectionsLow Water Cutoff if equipped Typical Heating Boiler InstallationsTABLE - 4A MINIMUM REQUIRED FLOW FOR HEATING BOILER4Water connections continued TABLE - 4B SYSTEM TEMPERATURE RISE CHARTPiping of the Boiler System Based on Boiler Output in Btu/hrWater Connections TABLE - 4C HEAT EXCHANGER PRESSURE DROP CHARTCirculator Pump Requirements 4Water connectionsPrimary/Secondary Boiler Piping Circulator Pump SpecificationsCirculator Pump Operation PERFORMANCE LOOPPrimary/Secondary Boiler Piping continued Low Temperature Bypass RequirementsFull Flow Application Boiler Flow RatesSOLUTION BOILER Primary / Secondary Piping4Water connections continued MAKE UP WATERSOLUTION BOILER LOW TEMPERATURE BYPASS4Water connections Primary / Secondary PipingPrimary / Secondary Piping 4Water connections continuedFigure 4-6 MultipleBoilers Zoned with Circulators ZONE #1SOLUTION BOILER Full System Flow4Water connections Figure 4-7 SingleBoiler Full System Flow4Water connections continued SOLUTION BOILERFull System Flow MAKE UP WATERTABLE - 5A TERMINAL STRIP WIRING 5Electrical connectionsBoiler Operating Temperature Control Auxiliary Device Connection to Terminal StripPump Wiring for a Heating Boiler Temperature AdjustmentOperating Temperature Control Locating Temperature ControlMaximum Set Point Determination TABLE - 5C MAXIMUM SET POINT DETERMINATIONTemperature Control Sensors Inlet Water Temperature SensorWiring of Remote Sensors Outdoor Air Temperature SensorInstallation of Remote Sensors Figure 5-4 Installationof Remote SensorsAdditional Temperature Controls Outdoor Air Reset OptionFigure 5-5 OptionalOutdoor Air Reset Control Figure 5-6 OutdoorAir Control Example ChartBLOCKED VENT SWITCH INVERTED TO SHOW RESET Figure 5-7 BlockedVent Switch Location5Electrical connections continued UNDERNEATH DRAFT HOODPre-startChecklist FOR YOUR SAFETY READ BEFORE OPERATING6Start-up Initial Start-upTo Turn Off Gas to Appliance Operating InstructionsFreeze Protection Intermittent Pilot Spark Ignition SystemWater Treatment Ignition and Control TimingsService technician 7Maintenance Maintenance and annual startupOwner maintenance see the following pages for instructionsAddress reported problems 7MaintenanceFlue vent system and air supply Inspect appliance areaCheck Expansion Tank 7Maintenance continuedCheck Relief Valve Check Control Settings Check All WiringHeat Exchanger / Burner Access Perform Start-upand Checks7Maintenance continued Inspection and CleaningBreathing Fresh air Inspection of Heat Exchanger Waterways Review with ownerGas Train and Controls Water Circulating PumpTroubleshooting Guide M9 Solution Boilers 8TroubleshootingStep StepSchematic Diagram - M9 Unit 9 DiagramsWiring Diagram - M9 45,000 - 260,000 Btu/hr ModelsPage SBR-I-SRev A 5/10 Revision A ECO #C03746 initial release