Manuals / Lennox International Inc / Household Appliance / Boiler

Lennox International Inc GWB9-075IH-2, GWB9-100IH-2, GWB9-050IH-2 Error Codes

Models: GWB9-050IH-2 GWB9-100IH-2 GWB9-075IH-2 Gas-Fired Hot Water Boiler

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TROUBLESHOOTING

Table 10- Error Codes

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Lennox International Inc GWB9-075IH-2, GWB9-100IH-2, GWB9-050IH-2, Gas-Fired Hot Water Boiler Error Codes

Contents

Installation Instructions Boiler Dimensions Introduction IntroductionImportant Safety Information GeneralSEA Level Ratings Natural and Propane Gases Net Ahri Rating Shipping Flue DiameterBoilers for USE AT High Altitude United States Installations 90 50/75/100 Series 2 Natural GAS90 50/75 Series 2 Propane GAS 43331093 43331096Before Installing the Boiler Boiler SizingBoiler Location Considerations Boiler Installation Locating The BoilerCombustion Air And Vent Pipe Requirements Extreme cold climate areas, use ¾ Armaﬂex or equivalentInstall boiler on level surface Boiler is not to be installed on carpetingCondensate Drain Requirements Foundation RequirementsClean the System First Near Boiler PipingSupply And Return Lines Single Zone Boiler Piping Multi-Zone Systems Two Zone Boiler Piping With Zone ValvesTwo Zone Boiler Piping With Circulators Page Page Page Safety Relief Valve Expansion Tank And Make-Up WaterTerminate pipe with plain end not threaded Diaphragm Type Expansion Tank Piping Conventional Closed Type Expansion Tank Piping Reinstall vent drain line Condensate Drain PipingFilling Condensate Trap With Water Chilled Water PipingCombustion AIR and Vent Pipe Connections And TerminationExample Elbow @ 3 ft. + 1 elbow @ 3 ft. = 6 equivalent ft. of pipeInstallation Boiler SizeVent AIR Intake Roof Vent / Intake TerminationsLess Than 12 Clearance Concentric Vent Terminations CombustionVent AirCombustion Air and Vent Piping Boiler Connections Feet minimum total equivalent length for all modelsConnecting The Gas Piping GAS Supply PipingCheck Gas Supply Leak Check Gas PipingGas Pipe Sizes 625,000445,000 365,000Electrical Wiring Electric Power SupplyThermostat Installation Connect Circulator Pump WiringWiring Schematic Ladder Wiring Diagram Page Ladder Diagram for Figure Controls and Accessories Casting Temperature Safety Switch Drain ValveDraft Inducer Circulator PumpStart UP Operating Instructions To Turn Off Gas To ApplianceS9381A Integrated Boiler Control Operation and Adjustments User Parameters Adjusting SettingsDisplay State Code Deﬁnitions Sequence of Operation Check OUT Procedure and Adjustment Set Thermostat To Desired Room Temperature Review All InstructionsVR8205 Maintenance and Cleaning Annual Examination And Cleaning Of Boiler Components Igniter wires Gas valve wiresRemove draft inducer and gasket from top of ﬂue connector Troubleshooting Initial Service ChecksError Codes Differential AIR Pressure Switch Check Boiler Differential PressureAluminum Series Clean System First Fill Water and ChemistryEliminate System Leaks General Guidelines When Using Antifreeze Antifreeze Products Installation and CHECK-OUT Certificate Boiler Model Serial # Date Installed Measured BTU/HR inputPage Lennox Industries Inc. Dallas, Texas