Safety Precautions

Planned Service

If you discover any of the following, shut down your unit, and contact an independent Lennox dealer for an inspection by a qualified technician.

S If you repeatedly hear any new or unfamiliar sounds while your unit is operating, there may be a problem. For example, poorly performing burners can produce unfamiliar noises.

SIf you smell any unusual odors, your unit may be oper& ating improperly. For example, units can give off unfa& miliar odors if components are required to operate in abnormal conditions.

SLook for visible signs of a malfunctioning unit. Exam& ples include unusual amounts of condensate on win& dows inside your house, visibly burnt components or unusual dirt or rust accumulations on the vent pipe or in the unit.

SIf you experience headache, nausea, fatigue, or dizzi& ness, the cause could be exposure to carbon monox& ide gas. This is often misdiagnosed as the flu because symptoms are similar. If you suffer from flu-like symp& toms that are exaggerated at home, but seem to sub& side while you are away from the house, exposure to carbon monoxide could be the cause.

Your vigilance may pay off in early detection of a problem before either personal injury or property damage occurs. Do not hesitate to contact a qualified service technician as an investment in your well being.

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You should expect a service technician to check the fol& lowing items during an annual inspection. Power to the unit must be shut off for the service technician's safety. Fresh air grilles and louvers (on the unit and in the room where the furnace is installed) - Must be open and unob& structed to provide combustion air.

Burners- Must be inspected for rust, dirt, or signs of wa& ter.

Vent pipe - Must be inspected for signs of water, dam& aged or sagging pipe, or disconnected joints.

Unit appearance - Must be inspected for rust, dirt, signs of water, burnt or damaged wires, or components.

Fan access door - Must be properly in place and provide a seal between the return air and the room where the fur& nace is installed.

Return air duct - Must be properly attached and provide an air seal to unit.

Operating performance - Unit must be observed during operation to monitor proper performance of the unit and the vent system.

Combustion gases - Flue products must be analyzed and compared to the unit specifications.

Problems detected during the inspection may make it necessary to temporarily shut down the furnace until the items can be repaired or replaced.

Pay attention to your furnace. Situations can arise be& tween annual furnace inspections that may result in un& safe operation. For instance, items innocently stored next to the furnace may obstruct the combustion air supply. This could cause incomplete combustion and the produc& tion of carbon monoxide gas.

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Lennox International Inc G27M manual Safety Precautions Planned Service
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G27M specifications

Lennox International Inc. is a renowned name in the HVAC industry, known for its innovative heating and cooling solutions. One of its significant offerings is the G27M, a high-performance gas furnace designed for residential applications. The G27M boasts an array of outstanding features that prioritize energy efficiency, comfort, and durability.

At the core of the G27M is its state-of-the-art heat exchanger, which maximizes heat transfer and enhances overall performance. The furnace operates at an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 92%, making it an environmentally friendly choice that can significantly reduce energy bills. This efficiency is further augmented by the inclusion of a multi-speed blower motor, which allows the system to adjust airflow according to the heating demand, ensuring consistent comfort across the home.

The G27M is also equipped with advanced technology that simplifies operation and enhances user control. Smart thermostat compatibility allows homeowners to manage their heating preferences remotely, optimizing energy usage and scheduling comfort according to their lifestyle. Additionally, the integrated electronic ignition system eliminates the need for a standing pilot light, increasing efficiency and reliability while reducing gas consumption.

Durability is another hallmark of the G27M, with its robust construction designed to withstand the rigors of operation. The furnace features a heavy-gauge steel cabinet that not only provides insulation but also minimizes noise levels during operation, ensuring a quieter home environment. Its powder-coated finish protects against rust and corrosion, extending the unit's lifespan.

Maintenance is made simple with the G27M, as its design allows for easy access to critical components. This facilitates routine servicing and ensures optimal performance over time. Furthermore, Lennox includes a limited warranty that underscores their confidence in the product’s reliability and performance.

In summary, the Lennox G27M gas furnace combines cutting-edge technology, exceptional energy efficiency, and a commitment to homeowner comfort. With its intelligent features, robust construction, and eco-friendly operation, the G27M stands out as a top choice for those seeking a dependable heating solution that can enhance their residential living experience. As the HVAC industry continues to evolve, products like the G27M highlight Lennox International's dedication to innovation and customer satisfaction, reinforcing its position as a leader in the market.
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