Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 000 - 260 5Electrical connections continued, Temperature Adjustment, B Amp Draw Data

Models: 000 Btu/hr 45

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5Electrical connections (continued)

Installation & Service Manual

5Electrical connections (continued)

Pump Wiring for a Heating Boiler

The heating boiler circulating pump must be purchased locally. The maximum load for the pump switched by the

Temperature Adjustment

Operating Temperature Control

internal pump relay must not exceed 1 HP. The current draw for a field installed 120 VAC pump MUST be added to the boiler’s current draw to determine the minimum wire size for 120 volt service.

NOTICE

The temperature controller is pre-set at the factory with test settings. You may need to adjust the settings to meet your specific needs.

TABLE - 5B

AMP DRAW DATA

45,000 thru 260,000 Btu/hr Models

		MAXIMUM
	FIRING CONTROLS	TOTAL AMPS
		@ 120 VAC

	M9 with Performance Loop Pump	1.25

WARNING	Return water temperatures must not be less
WARNING	than 140°F. If lower return water
	temperatures are required, follow the
	instructions for Low Temperature Bypass
	Requirements, see page 28.

Locating Temperature Control

Remove the control panel door on the front of the unit in order to locate and access the temperature control.

IGNITION MODULE

TEMPERATURE CONTROL

MANUAL RESET HIGH LIMIT (IF EQUIPPED)

PUMP RELAY

TRANSFORMER

Temperature Control Settings

Remove the control panel door on the front of the unit in unless your unit is specified as a boiler only with an outdoor air reset option. If your unit is a boiler only with an outdoor air reset option, there are additional controls for this option. They are explained under Outdoor Air Reset Option, page 38.

The three setting knobs on the temperature control are for Set point, Differential, and High-Fire Offset (see FIG. 5-3).

Figure 5-2_Intermittent Pilot System M9 Control Panel

Figure 5-3_Temperature Control

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Lochinvar 000 - 260, 45 5Electrical connections continued, Temperature Adjustment, B Amp Draw Data, 3 TemperatureControl

Contents

Save this manual for future reference Models 45,000 - 260,000 Btu/hrSBR-I-SRev A Contents Hazard definitionsDANGER 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 1Determine boiler location TABLE - 1B MINIMUM RECOMMENDED COMBUSTIONAIR SUPPLY TO EQUIPMENT ROOM TABLE - 2A VENT PIPE SIZES 2VentingA Conventional Negative Draft Venting System 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 connectionsFigure 3-4 GasSupply Pressure Checking Gas Supply Pressure3Gas connections continued 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 Relief Valve 7Maintenance continuedCheck Expansion Tank Perform Start-upand Checks Check All WiringCheck Control Settings Heat Exchanger / Burner AccessBreathing Fresh air Inspection and Cleaning7Maintenance continued 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