Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 45 4Water connections, Primary / Secondary Piping, Make Up Water, Solution Boiler, From

Models: 000 Btu/hr 45

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Installation & Service Manual

4Water connections

Primary / Secondary Piping

Figure 4-5_Single Boiler - Primary / Secondary with Low Temperature Bypass

BACKFLOW PREVENTER

PRESSURE

REDUCING VALVE

PRESSURE

GAUGE

	MAKE UP WATER
	SYSTEM SUPPLY	AIR
	SENSOR	SEPARATOR
	SYSTEM
	CIRCULATOR	FROM
	TO	FROM
	TO	SYSTEM
	SYSTEM	NOT TO EXCEED 12"APART
		NOT TO EXCEED 12"APART
	BALL VALVE	LOW TEMPERATURE BYPASS
	(TYPICAL)

EXPANSION	BOILER
EXPANSION	CIRCULATOR
TANK

DRAIN POINT

(TYPICAL)

Y-STRAINER

(RECOMMENDED)

UNION (TYPICAL)

TEMPERATURE / PRESSURE

GAUGE DRAIN

PRESSURE

RELIEF VALVE

SOLUTION

BOILER

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Lochinvar 45 4Water connections, Primary / Secondary Piping, Make Up Water, Low Temperature Bypass, Solution Boiler, From

Contents

Models 45,000 - 260,000 Btu/hr SBR-I-SRev ASave this manual for future reference Hazard definitions DANGERContents 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 TABLE - 1B MINIMUM RECOMMENDED COMBUSTION AIR SUPPLY TO EQUIPMENT ROOM1Determine boiler location 2Venting A Conventional Negative Draft Venting SystemTABLE - 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 WrenchChecking Gas Supply Pressure 3Gas connections continuedFigure 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 area7Maintenance continued Check Expansion TankCheck Relief Valve Heat Exchanger / Burner Access Check All WiringCheck Control Settings Perform Start-upand ChecksInspection and Cleaning 7Maintenance continuedBreathing 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

MAKE UP WATER

LOW TEMPERATURE BYPASS