A.O. Smith 201, 200, 2500, 2100, 1850, 1300, 1500, 1000 For Your Safety Read Before Operating

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Lighting Instructions for the G(B/W) 1000 through 2500 models

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

A.THISAPPLIANCE DOES NOT HAVEAPILOT. IT IS EQUIPPED WITH AN IGNITION DEVICE WHICH AUTOMATICALLY LIGHTS THE BURNER. DO NOT TRY TO LIGHT THE BURNER BY HAND.

B.BEFORE LIGHTING: SMELL ALL AROUND THE APPLIANCE AREA FOR GAS. BE SURE TO SMELL NEXT TO THE FLOOR BECAUSE SOME GAS IS HEAVIER THAN AIR AND WILL SETTLE ON THE FLOOR.

WHAT TO DO IF YOU SMELL GAS

DO NOT TRY TO LIGHT ANY APPLIANCE.

DO NOT TOUCH ANY ELECTRIC SWITCH.

DO NOT USE ANY PHONE IN YOUR BUILDING.

IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S PHONE. FOLLOW THE GAS SUPPLIER’S INSTRUCTIONS.

IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE DEPARTMENT.

C.USE ONLY YOUR HAND TO TURN THE MAIN MANUAL GAS VALVE HANDLE. NEVER USE TOOLS. IF THE HANDLE WILL NOT TURN BY HAND, DON’T TRY TO REPAIR IT. CALL A QUALIFIED SERVICE TECHNICIAN. FORCE ORATTEMPTED REPAIR MAY RESULT IN A FIRE OR EXPLOSION.

D.DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER WATER. IMMEDIATELY CALLAQUALIFIED SERVICE TECHNICIAN TO INSPECT THE APPLIANCE AND TO REPLACE ANY PART OF THE CONTROL SYSTEMAND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER.

E.DO NOT OPERATE APPLIANCE UNLESS UNIT IS FILLED WITH WATERAND WATER LINES ARE FULLY OPEN.

OPERATING INSTRUCTIONS

1.STOP! READ THE SAFETYINFORMATIONABOVE ON THIS LABEL.

2SET THE SYSTEM CONTROLLER TO THE LOWEST SETTING.

3.TURN POWER SWITCH ON APPLIANCE TO “OFF” POSITION.

4.TURN MAIN MANUAL GAS VALVE TO “OFF” POSITION, (FIGURE “B”). THE VALVE IS “OFF” WHEN THE HANDLE IS PERPENDICULAR TO THE GAS FLOW DIRECTION.

5.THIS APPLIANCE IS EQUIPPED WITH AN IGNITION DEVICE WHICH AUTOMATICALLY LIGHTS THE BURNER, DO NOT TRY TO LIGHT THE BURNER BY HAND.

6.WAIT FIVE (5) MINUTES TO CLEAR OUT ANY GAS. THEN SMELL FOR GAS, INCLUDING NEAR THE FLOOR. IF YOU SMELL GAS,

STOP! FOLLOW “B” IN THE SAFETY INFORMATION ABOVE ON THIS LABEL. IF YOU DON’T SMELL GAS, GO TO THE NEXT STEP.

7.TURN MAIN MANUAL GAS VALVE TO “ON” POSITION, (FIGURE “A”), THE VALVE IS “ON” WHEN THE HANDLE IS PARALLEL TO THE GAS FLOW DIRECTION.

8.TURN POWER SWITCH TO “ON” POSITION.

9.SET THE SYSTEM CONTROLLER TO DESIRED SETTING.

10.IF THE APPLIANCE WILL NOT OPERATE, FOLLOW THE INSTRUCTIONS“TOTURNOFFGASTOTHEAPPLIANCE” AND CALL YOUR SERVICE TECHNICIAN OR GAS SUPPLIER.

TO TURN OFF GAS TO APPLIANCE

1.SET THE SYSTEM CONTROLLER TO THE LOWEST SETTING.

2.TURN POWER SWITCH ON APPLIANCE TO “OFF” POSITION.

3.TURN MAIN MANUAL GAS VALVE TO “OFF” POSITION, (FIGURE “B”). THE VALVE IS “OFF” WHEN THE HANDLE IS PERPENDICULAR TO THE GAS FLOW DIRECTION.

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Contents Limited Warranty For buying this cost efficient, high recovery unit fromGAS and Electrical Characteristics ROUGH-IN DimensionsRough in Dimensions Heat Exchanger Pressure Drop Recovery CapacitiesForeword High Altitude InstallationGrounding Instructions Correct GASFEATURES/CONTROLS Safety Relief Valves Installation InstructionsCirculating Pump Required AbilityChemical Vapor Corrosion Installation ClearancesLevelling AIR RequirementsVenting Connecting Boiler to a Common VentUnconfined Space Confined SpaceLocation Requirements INTAKE/EXHAUST Intake/Exhaust Installation Requirements See figureType B or Standard Vent Vertical CategoryEquivalent 16 40.6 cmVenting Vent Size Vent Length Material Inches Feet Standard Vent Horizontal CategoryIII Stainless SteelDirect Vent Vertical Category Direct Vent Vertical Exhaust ConfigurationsDirect Vent Horizontal Category Direct Vent Horizontal Exhaust ConfigurationsVent Connector Model Number Horizontal Vent InstallationStandard Vertical VENTING, Category Standard Horizontal VENTING, CategoryHydronic Installation System InstallationSpace Heating Applications Cooling PipingHOT Water Supply Boiler Installation Single boiler with horizontal tank Single boiler with vertical tank Suggested Pipe Size For Multiple Gas Appliances Propane Gas GAS Connections Single Unit INSTALLATION, Suggested Pipe SizeDistance from Meter BTU Input Btuh Filling and Purging for Heating Boiler Installation Wiring Connections Filling for HOT Water Supply Boiler Installation OperationPurging of GAS Line AdjustmentsInlet GAS Pressure Manifold PressureFor Your Safety Read Before Operating For Your Safety Read Before Operating Control System DIA-SCAN II Display Board Operating ProceduresDescription of MULTI-STAGE Firing System Red Fault Lights Options/Features Setting ProceduresGreen Status Lights Yellow Parameter Set Lights Temperature ProbesOutlet Probe Inlet ProbeProcedure for Setting Stage Differential Procedure for Setting Tank Probe TemperatureApplication Hydronic Heating Stage OneLast Error Mode Procedure for Setting Pump DelayDisplay Stage Cycle Count Appliance Operating SequenceMain Burners Preventative MaintenanceDeliming Troubleshooting Ignition System Replacement PartsLED Circulate Fault Flow Switch No GAS Valve Power SensedInsufficient AIR AIR Pressure Switch Stage Power VentNEW Boiler Limited Warranty Replacement Parts