Lennox International Inc GWB8-262E-2 Electrical Wiring, Vent Damper Wiring, Electric Power Supply

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10 - ELECTRICAL WIRING

!WARNING

Electrical shock hazard. Turn OFF electrical power supply at service panel before making electrical connections. Failure to do so could result in death or serious injury.

VENT DAMPER WIRING

Boiler is equipped with factory wired harness with 4 pin molex plug, that plugs into 4 pin molex receptacle inside vent damper operator.

Vent damper must be connected for boiler to operate.

NOTICE

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

Electrically bond boiler to ground in accordance with requirements of authority having jurisdiction. Refer to:

•USA- National Electrical Code, ANSI/NFPA 70.

•Canada - Canadian Electrical Code, Part I, CSA C22.1: Safety Standard for Electrical Installations.

ELECTRIC POWER SUPPLY

Run separate 120 volt circuit from separate over current protective device in electrical service entrance panel. This should be a 15 ampere circuit. Locate shut-off switch at boiler. It must be turned off during any maintenance. Connect 120 volt power supply to control leads L1 (HOT) and L2.

Run a 14 gauge or heavier copper wire from boiler to grounded connection in service panel or properly driven and electrically grounded ground rod.

THERMOSTAT INSTALLATION

1.Thermostat should be installed on an inside wall about four feet above the floor.

2.NEVER install thermostat on outside wall.

3.Do not install a thermostat where it will be affected by drafts, hot or cold pipes, sunlight, lighting fixtures, televisions, a fireplace, or a chimney.

4.Check thermostat operation by raising and lowering thermostat setting as required to start and stop the burners.

5.Instructions for the final adjustment of the thermostat are packaged with the thermostat (adjusting heating anticipator, calibration, etc.)

Set heat anticipator at .2 amps. 24 volt thermostat connects to aquastat terminals T and TV.

If any of the original wire as supplied with this appliance must be replaced,

It must be replaced with type 105°C thermoplastic wire or its equivalent.

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Contents GAS-FIRED HOT Water Boilers Product LiteratureBoiler Model Number Flue Diameter Width DimensionsDimensions InchBoiler Ratings and Capacities Ratings and CapacitiesBoilers for USE AT High Altitude Table of Contents Minimum Clearances to Combustible Installation ProcedureCanada Minimum Room Volume, Indoor Air OnlyRoom Cubic Feet Volume Ventilation & Combustion AIRDischarge Connecting Supply and Return PipingRelief Valve Discharge Line Check localFor USE with Cooling Units Temperature Pressure GaugeTypical Hot Water Piping Bypass Piping Circulator on Supply Chimney Sizing Connecting The Vent Damper And Vent ConnectorChimney and Vent Pipe Connection Check Your ChimneyRemoving Existing Boiler From Common Venting System Minimum Vent Pipe ClearanceVent Damper Manual Operation Vent Damper InstallationChecking GAS Piping GAS Supply PipingGas Pipe Sizes Check GAS SupplyThermostat Installation Electrical WiringVent Damper Wiring Electric Power SupplyIntegrated High Limit Electronic Ignition Control Wiring DiagramsWiring Diagrams Integrated High Limit Electronic Ignition Control Filling System with Water General InstructionsTo Turn OFF GAS to Appliance Lighting InstructionsLight this burner by hand Do not use this appliance if any part hasOperating Your Boiler Check Thermostat Operation Maintaining Your Boiler If Burner is Noisy Service HintsIf Your System is not Heating or not Giving Enough Heat Possible Cause What to doEquipment and Optional Accessories Blocked Vent Safety Switch Blocked Vent Safety Shutoff Rollout Switch Flame Rollout Safety ShutoffElectrical Connections Installation Environment ConsiderationsAdjusting Settings Appendix a Control ModuleOperation State Codes OperationBoiler High Limit Temperature Controller TroubleshootingTroubleshooting Error Codes Step ErrorDefinition Intermittent PilotCorrect Pilot Flame 3/8 to 1/2 inch in flame. See , Troubleshooting Pilot FlameLennox Industries Inc. Dallas, Texas
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GWB8-299E-2, GWB8-245E-2, GWB8-280E-2, Gas-Fired Hot Water Boiler, GWB8-262E-2 specifications

Lennox International Inc. is a prominent player in the HVAC industry, renowned for its innovative solutions and high-efficiency products. Among its standout offerings is the GWB8 Gas-Fired Hot Water Boiler, available in various models including GWB8-262E-2, GWB8-245E-2, GWB8-280E-2, and GWB8-299E-2. These units are designed to provide reliable and efficient heating solutions for residential applications.

One of the key features of the GWB8 series is its energy-efficient operation. These boilers are designed to achieve an AFUE (Annual Fuel Utilization Efficiency) rating of up to 84%, allowing homeowners to save on energy costs while reducing their environmental footprint. The product utilizes a cast-iron heat exchanger, which promotes optimal heat retention and distribution, ensuring consistent performance throughout the heating season.

The GWB8 series incorporates advanced technologies to enhance comfort and efficiency. A significant innovation is the use of a power venter system that facilitates venting through the sidewall of the home, providing installation flexibility while maintaining safety standards. Additionally, the boilers are equipped with a Honeywell integrated control for precise temperature management and modulating gas valve technology, which adjusts the gas flow to match the heating demand, further optimizing fuel consumption.

Another defining characteristic of the GWB8 models is their durable construction. Designed to withstand the rigors of heating applications, these models feature a robust, powder-painted steel cabinet that helps prevent rusting and corrosion. The access doors are insulated, contributing to overall efficiency while allowing easy maintenance and serviceability.

The GWB8 series is also designed with homeowner comfort in mind. The quiet operation of these boilers ensures that they blend into the living environment without disruptive noise, making them an ideal choice for residential settings. The models are compatible with various heating systems, including hydronic heating, making them versatile and reliable.

Overall, Lennox's GWB8 Gas-Fired Hot Water Boiler series is an excellent choice for homeowners seeking efficient, durable, and reliable heating solutions. With a combination of advanced technologies, energy-efficient performance, and practical features, these boilers set a high standard for residential heating systems in today's market.
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