Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 000 Btu/hr, 45 7Maintenance Maintenance and annual startup, Service technician, General

Models: 000 Btu/hr 45

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7Maintenance

Installation & Service Manual

7Maintenance

Maintenance and annual startup

Table 7A_Service and Maintenance Schedules

Service technician

(see the following pages for instructions)

		General:
		• Address reported problems
		• Inspect		interior; clean	and vacuum if
			necessary;
		•	Check for leaks (water, gas, flue)
		• Examine venting system
		• Check system water			pressure/system
			piping/expansion tank
	UP	•	Check control settings
		• Check wiring and connections
	START-
		•	Flame inspection (stable, uniform)

		• Check flue gas passageways
	ANNUAL	• Inspect and clean the burners
		• Perform		start-up	checkout and

			performance verification per Section 6 -
			Start-up.

If combustion or performance indicate need:

•Clean heat exchanger

•Remove and wash burners

Owner maintenance

(see the User’s Information Manual for instructions)

		• Check appliance area
		• Check pressure/temperature
		gauge
	Daily

	Monthly	• Check vent piping
	Monthly
		• Check relief valve

	Periodically	• Test low water cutoff (if used)
	Periodically
		• Reset button (low water cutoff)

	Every	• Check appliance piping (gas and
	Every	water) for leaks
		water) for leaks
	6 months
		• Operate relief valve

	End	•Shut	appliance	down (unless
	End	boiler	used for	domestic hot
		boiler	used for	domestic hot
	of season	water)
	months

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Lochinvar 000 Btu/hr 7Maintenance Maintenance and annual startup, Service technician, Owner maintenance, General, Daily

Contents

SBR-I-SRev A Models 45,000 - 260,000 Btu/hrSave this manual for future reference DANGER Hazard definitionsContents 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 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 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 connections3Gas connections continued Checking Gas Supply PressureFigure 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 TABLE - 4B SYSTEM TEMPERATURE RISE CHART4Water connections continued Piping of the Boiler System4Water connections TABLE - 4C HEAT EXCHANGER PRESSURE DROP CHARTWater Connections Circulator Pump RequirementsPERFORMANCE LOOP Circulator Pump SpecificationsPrimary/Secondary Boiler Piping Circulator Pump OperationBoiler Flow Rates Low Temperature Bypass RequirementsPrimary/Secondary Boiler Piping continued Full Flow ApplicationMAKE UP WATER Primary / Secondary PipingSOLUTION BOILER 4Water connections continuedPrimary / Secondary Piping LOW TEMPERATURE BYPASSSOLUTION BOILER 4Water connectionsZONE #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 ControlLocating Temperature Control Temperature AdjustmentPump Wiring for a Heating Boiler Operating Temperature ControlInlet Water Temperature Sensor TABLE - 5C MAXIMUM SET POINT DETERMINATIONMaximum Set Point Determination Temperature Control SensorsFigure 5-4 Installationof Remote Sensors Outdoor Air Temperature SensorWiring of Remote Sensors Installation of 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 supplyCheck Expansion Tank 7Maintenance continuedCheck Relief Valve Perform Start-upand Checks Check All WiringCheck Control Settings Heat Exchanger / Burner Access7Maintenance continued Inspection and CleaningBreathing 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