Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 45, 000 Btu/hr, 000 - 260 service manual 1Determine boiler location, Location of unit

Models: 000 Btu/hr 45

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1Determine boiler location

Installation & Service Manual

1Determine boiler location

Location of unit

1.Locate the appliance so that if water connections should leak, water damage will not occur. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not restrict combustion air flow. Under no circumstances is the manufacturer to be held responsible for water damage in connection with this appliance, or any of its components.

2.The appliance must be installed indoors where it is protected from exposure to wind, rain and weather.

3.The appliance must be installed so that the ignition system components are protected from water (dripping, spraying, rain, etc.,) during appliance operation and service (circulator replacement, control replacement, etc.,).

4.Appliances located in a residential garage and in adjacent spaces that open to the garage and are not part of the living space of a dwelling unit must be installed so that all burners and burner ignition devices have a minimum clearance of not less than 18" (46cm) above the floor. The appliance must be located or protected so that it is not subject to physical damage by a moving vehicle.

5.DO NOT install this appliance in any location where gasoline or flammable vapors are likely to be present.

6.All units have been approved for alcove installation (an ALCOVE is a closet enclosure without a front door).

7.The appliance must not be installed on carpet.

8.All units have been approved for use on combustible surfaces.

9.Allow sufficient space for servicing pipe connections, pump and other auxiliary equipment, as well as the appliance.

	NOTICE	Clearances from combustible construction
	NOTICE	are noted on the appliance rating plate.
		are noted on the appliance rating plate.

Recommended Service Clearances:

Left - 24”

Front - 24”

14"

TOP

6 " RIGHT

6 " REAR

18 "18 "

FRONTLEFT

Figure 1-1_Alcove Installation - Models 45,000 - 180,000 Btu/hr

Recommended Service Clearances:

Left - 24”

Front - 24”

29"

TOP

6 " RIGHT

6 " REAR

18 "18 "

FRONTLEFT

Figure 1-2_Alcove Installation - Models 215,000 - 260,000 Btu/hr

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Lochinvar 45, 000 Btu/hr, 000 - 260 service manual 1Determine boiler location, Location of unit

Contents

Models 45,000 - 260,000 Btu/hr SBR-I-SRev ASave this manual for future reference Hazard definitions DANGERContents 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 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 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 WrenchChecking Gas Supply Pressure 3Gas connections continuedFigure 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 area7Maintenance continued Check Expansion TankCheck Relief Valve Check Control Settings Check All WiringHeat Exchanger / Burner Access Perform Start-upand ChecksInspection and Cleaning 7Maintenance continuedBreathing 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