Lennox International Inc GWB8-280E-2, GWB8-262E-2 Rollout Switch Flame Rollout Safety Shutoff

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17 - EQUIPMENT AND OPTIONAL ACCESSORIES

ROLLOUT SWITCH

(FLAME ROLLOUT SAFETY SHUTOFF)

Rollout switch is temperature-sensitive fuse link device. Located on boiler base just outside fire box. In event of heat exchanger flueway blockage causing flame to roll out of fire box, fuse does not change in appearance when blown.

If rollout switch blows, it must be replaced with exact replacement. Check heat exchanger flueways for blockage when restoring system to operating condition. DO NOT operate system without rollout switch.

BLOCKED VENT SAFETY SWITCH (BLOCKED VENT SAFETY SHUTOFF)

Blocked vent safety switch is manual reset disc thermostat with fixed setpoint (340°F (171°C)), and normally closed contacts. It is located at relief opening of integral draft diverter. In event of chimney or venting system blockage causing products of combustion to spill out of relief opening, blocked vent disc heats up and blocked vent contacts open, shutting down flow of gas to main burners by removing power to gas valve.

In event blocked vent contacts open, reset button on back of switch will pop up. Blocked vent safety switch must be reset manually, after switch has cooled off, by pushing reset button down. Check venting system and chimney for blockage when restoring system to operating condition. DO NOT operate boiler without Blocked vent safety switch.

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Contents Product Literature GAS-FIRED HOT Water BoilersInch DimensionsDimensions Boiler Model Number Flue Diameter WidthBoilers for USE AT High Altitude Boiler Ratings and CapacitiesRatings and Capacities Table of Contents Installation Procedure Minimum Clearances to CombustibleVentilation & Combustion AIR Minimum Room Volume, Indoor Air OnlyRoom Cubic Feet Volume CanadaCheck local Connecting Supply and Return PipingRelief Valve Discharge Line DischargeTemperature Pressure Gauge For USE with Cooling UnitsTypical Hot Water Piping Bypass Piping Circulator on Supply Check Your Chimney Connecting The Vent Damper And Vent ConnectorChimney and Vent Pipe Connection Chimney SizingMinimum Vent Pipe Clearance Removing Existing Boiler From Common Venting SystemVent Damper Installation Vent Damper Manual OperationCheck GAS Supply GAS Supply PipingGas Pipe Sizes Checking GAS PipingElectric Power Supply Electrical WiringVent Damper Wiring Thermostat InstallationWiring Diagrams Integrated High Limit Electronic Ignition ControlWiring Diagrams Integrated High Limit Electronic Ignition Control General Instructions Filling System with WaterDo not use this appliance if any part has Lighting InstructionsLight this burner by hand To Turn OFF GAS to ApplianceOperating Your Boiler Check Thermostat Operation Maintaining Your Boiler Possible Cause What to do Service HintsIf Your System is not Heating or not Giving Enough Heat If Burner is NoisyEquipment and Optional Accessories Rollout Switch Flame Rollout Safety Shutoff Blocked Vent Safety Switch Blocked Vent Safety ShutoffAppendix a Control Module Installation Environment ConsiderationsAdjusting Settings Electrical ConnectionsOperation Operation State CodesTroubleshooting Error Codes Boiler High Limit Temperature ControllerTroubleshooting Intermittent Pilot ErrorDefinition StepTroubleshooting Pilot Flame Correct Pilot Flame 3/8 to 1/2 inch in flame. See ,Lennox 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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