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Lochinvar 000 Btu/hr, 45 1Determine boiler location, 3 CombustionAir Direct from Outside

Models: 000 Btu/hr 45

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Figure 1-3_Combustion Air Direct from Outside

Installation & Service Manual

1Determine boiler location

Combustion and ventilation air requirements for conventionally vented appliances

Provisions for combustion and ventilation air must be in accordance with, Air for Combustion and Ventilation, of the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CGA Standard B149 Installation Code for Gas Burning Appliances and Equipment, or applicable provisions of the local building codes.

The room where the appliance is installed MUST be provided with properly sized openings to assure adequate combustion air and proper ventilation when the appliance is installed with conventional venting.

Figure 1-3_Combustion Air Direct from Outside

1.If air is taken directly from outside the building with no duct, provide two permanent openings (see FIG. 1-3):

(a)Combustion air opening, with a minimum free area of one square inch per 4000 Btu/hr input (5.5 cm2 per kW). This opening must be located within 12" (30 cm) of the floor.

(b)Ventilation air opening, with a minimum free area of one square inch per 4000 Btu/hr input

(5.5 cm2 per kW). This opening must be located within 12" (30 cm) of the ceiling.

Figure 1-4_Combustion Air Through Ducts

2.If combustion and ventilation air is taken from the outdoors using a duct to deliver the air to the room where the appliance is installed, each of the two openings should be sized based on a minimum free area of one square inch per 2000 Btu/hr (11cm2 per kW) (see FIG. 1-4).

Figure 1-5_Combustion Air from Interior Space

3.If air is taken from another interior space that is adequately ventilated, each of the two openings specified above should have a net free area of one square inch for each 1000 Btu/hr (22cm2 per kW) of input, but not less than 100 square inches (645cm2) (see FIG. 1-5).

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Lochinvar 000 Btu/hr, 45 1Determine boiler location, 3 CombustionAir Direct from Outside, 4 CombustionAir Through Ducts

Contents

SBR-I-SRev A Models 45,000 - 260,000 Btu/hrSave this manual for future reference DANGER Hazard definitionsContents What to do if you smell gas WarrantyPlease read before proceeding Checking equipmentCodes Please read before proceedingOther Specifications RatingsSolution Boiler I=B=R Rating Figure A High Altitude Label LocationThe Solution - How it works Models 45,000 - 90,000 Rear View The Solution - How it works... continuedModels 45,000 - 90,000 Btu/hr Front View Models 45,000 - 90,000 Right Side inside unitModels 135,000 - 260,000 Btu/hr Rear View The Solution - How it worksModels 135,000 - 260,000 Btu/hr Front View 10 171Determine boiler location Location of unitFigure 1-4 CombustionAir Through Ducts 1Determine boiler locationFigure 1-3 CombustionAir Direct from Outside 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 2Venting Locate appliance as close as possible to a chimney or gas ventLess from Ridge Vertical Vent Termination ClearancesFigure 2-2 VentTermination from Peaked Roof 10 or from Parapet WallTABLE - 2B VENT MATERIALS Masonry Chimney InstallationSidewall Venting - Negative Draft Fan Assisted VentingAutomatic Vent Damper ProtectionGas Pressure Test 3Gas connectionsGas Supply Gas ConnectionTABLE - 3E 3Gas connections continuedGas Piping Install Piping to Control3Gas connections Gas Manifold Pressure Adjustment ProcedureFigure 3-3 ManifoldPressure Adjustment Figure 3-2 Wrench3Gas connections continued Checking Gas Supply PressureFigure 3-4 GasSupply Pressure Venting of Combination Gas Valves Combination Gas Valves3Gas connections Figure 3-5 M9Gas ValveRelief Valve Water Flow Switch if equipped4Water connections Figure 4-2 WaterFlow Switch - Top ConnectionsTABLE - 4A MINIMUM REQUIRED FLOW Typical Heating Boiler InstallationsLow Water Cutoff if equipped FOR HEATING BOILERTABLE - 4B SYSTEM TEMPERATURE RISE CHART 4Water connections continuedPiping of the Boiler System Based on Boiler Output in Btu/hrCirculator Pump Requirements TABLE - 4C HEAT EXCHANGER PRESSURE DROP CHARTWater Connections 4Water connectionsCirculator Pump Operation Circulator Pump SpecificationsPrimary/Secondary Boiler Piping PERFORMANCE LOOPLow Temperature Bypass Requirements Primary/Secondary Boiler Piping continuedFull Flow Application Boiler Flow Rates4Water connections continued Primary / Secondary PipingSOLUTION BOILER MAKE UP WATERPrimary / Secondary Piping SOLUTION BOILER4Water connections MAKE UP WATERFigure 4-6 MultipleBoilers Zoned with Circulators 4Water connections continuedPrimary / Secondary Piping ZONE #14Water connections Full System FlowSOLUTION BOILER Figure 4-7 SingleBoiler Full System FlowFull System Flow SOLUTION BOILER4Water connections continued MAKE UP WATERBoiler Operating Temperature Control 5Electrical connectionsTABLE - 5A TERMINAL STRIP WIRING Auxiliary Device Connection to Terminal StripTemperature Control Settings Temperature AdjustmentPump Wiring for a Heating Boiler 5Electrical connections continued5Electrical connections TABLE - 5C MAXIMUM SET POINT DETERMINATIONMaximum Set Point Determination Set PointFigure 5-4 Installationof Remote Sensors Wiring of Remote SensorsInstallation of Remote Sensors 5Electrical connections continuedFigure 5-5 OptionalOutdoor Air Reset Control Outdoor Air Reset OptionAdditional Temperature Controls Figure 5-6 OutdoorAir Control Example Chart5Electrical connections continued Figure 5-7 BlockedVent Switch LocationBLOCKED VENT SWITCH INVERTED TO SHOW RESET UNDERNEATH DRAFT HOOD6Start-up FOR YOUR SAFETY READ BEFORE OPERATINGPre-startChecklist Initial Start-upOperating Instructions To Turn Off Gas to ApplianceWater Treatment Intermittent Pilot Spark Ignition SystemFreeze Protection Ignition and Control TimingsOwner maintenance 7Maintenance Maintenance and annual startupService technician see the following pages for instructionsFlue vent system and air supply 7MaintenanceAddress reported problems Inspect appliance areaCheck Expansion Tank 7Maintenance continuedCheck Relief Valve Heat Exchanger / Burner Access Check All WiringCheck Control Settings Perform Start-upand Checks7Maintenance continued Inspection and CleaningBreathing Fresh air Gas Train and Controls Review with ownerInspection of Heat Exchanger Waterways Water Circulating PumpStep 8TroubleshootingTroubleshooting Guide M9 Solution Boilers StepWiring Diagram - M9 9 DiagramsSchematic Diagram - M9 Unit 45,000 - 260,000 Btu/hr ModelsPage Revision A ECO #C03746 initial release SBR-I-SRev A 5/10