Vent Damper Installation | Lennox International Inc GWB8-299E-2

Figure 8 - Vent Damper Installation

Figure 9 - Vent Damper Placement

Annually check vent damper and all ﬂue product carrying areas of appliance, with particular attention given to deterioration from corrosion or other sources. If you see corrosion or other deterioration, contact your heating contractor for repairs. Check vent damper operation as follows:

•When boiler is off, check vent damper positions indicator points to closed position, Figure 10.

•Turn thermostat or controller up to call for heat and check vent damper indicator points to open position.

•Turn thermostat or controller down again and check damper position indicator returns to closed position.

Vent Damper Manual Operation

Vent damper may be placed in open position to permit burner operation by using “HOLD DAMPER OPEN” switch, located on damper controller. Thermostat will control burner ﬁring as before, while damper will remain open. DO NOT turn damper open manually or motor damage will result. Set switch to “AUTOMATIC OPERATION” to close vent damper during burner off cycle.

For further information, and vent damper troubleshooting guide, refer to manual packaged with vent damper.

Inspect vent damper at least once a year by a qualiﬁed service technician.

Figure 10 - Vent Damper Position Indicator

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.

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