Blower, Burner Flame | Lennox International Inc G27M manual

UPFLOW FURNACE SIDE RETURN AIR

FIGURE 4

DOWNFLOW FURNACE

FILTERS IN PLENUM RACK

FIGURE 5

Blower

Check and clean blower wheel for any debris. Blower mo&

tor is prelubricated for extended bearing life. No further lu&

brication is needed.

WARNING

Blower door must be securely in place when blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.

Burner Flame

The G27M burner flame is not adjustable; however, the flame should be inspected at the beginning of each heat& ing season and burners should be cleaned, if necessary. Burner flame should be blue when burning natural gas.

BURNER FLAME

FLAME

FLAME APPEARS BLUE IF

BURNING NAT. GAS.

HEAT

EXCHANGER

TUBE

BURNER	VEST
	VEST
	PANEL

FIGURE 6

Venting System Inspection

Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burners for corro& sion, deterioration, or deposits of debris. Remove any ob& structions.

Contact your Lennox dealer for a periodic unit inspection by a qualified service technician.

Flame Rollout Safety Switches

Your Lennox furnace is equipped with two flame roll-out safety switches which shut off the gas supply to the fur& nace in case of heat exchanger blockage. If the furnace fails to operate due to the functioning of these safety switches, DO NOT attempt to place the furnace into op& eration. Contact a qualified service technician.

Service Reminder

Call your Lennox service technician if unit is inoperative. Before calling, always check the following to be sure ser& vice is required.

1 - Check that electrical disconnect switches are ON.

2 - Are access panels securely in place?

3 - Check room thermostat for proper setting.

4 - Replace any blown fuses or reset circuit breakers.

5 - Gas valve should be ON.

6 - Air filter should not be plugged limiting air flow.

7 - Is gas turned on at meter?

8 - Is manual main shut&off valve open?

To keep your Lennox gas heating system in peak op% erating condition year after year, contact your inde% pendent Lennox dealer about a planned service pro% gram.

Page 5

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.