Filters, Maintenance | Lennox International Inc ML180UHE manual

Filters

All ML180UHE filters are installed external to the unit. Fil- ters should be inspected monthly. Clean or replace the fil- ters when necessary to ensure proper furnace operation. Replacement filters must be rated for high velocity airflow. Table 1 lists recommended filter sizes.

A filter must be in place when the unit is operating.

TABLE 1

Furnace	Filter Size
Cabinet Width	Side Return	Bottom Return
	Side Return	Bottom Return

14−1/2"	16 X 25 X 1 (1)	14 X 25 X 1 (1)
17−1/2"	16 X 25 X 1 (1)	16 X 25 X 1 (1)
21"	16 X 25 X 1 (1)	20 X 25 X 1 (1)
24−1/2"	16 X 25 X 1 (2)	24 X 25 X 1 (1)

Maintenance

A licensed professional service technician (or equivalent) should inspect the complete system each season (heating and cooling). The following maintenance procedures should only be conducted by a licensed professional ser- vice technician (or equivalent). Do not attempt to service

the unit in any way.

WARNING

ELECTRICAL SHOCK, FIRE,

OR EXPLOSION HAZARD.

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

Improper servicing could result in dangerous opera- tion, serious injury, death, or property damage. Before servicing, disconnect all electrical power to furnace.

When servicing controls, label all wires prior to dis- connecting. Take care to reconnect wires correctly. Verify proper operation after servicing.

Venting System

WARNING

Asphyxiation Hazard

The exhaust vent for this furnace must be leak−free and must be securely connected to the furnace flue collar at all times.

For your safety and to fulfill the terms of the limited warranty, a licensed professional service technician (or equivalent) must annually inspect this furnace and its vent system.

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.

Inspect the furnace for obvious signs of deterioration. Inspect the furnace venting system to make sure it is in place, physically sound, and without holes, corrosion, or blockage.

Vent pipe must be clear and free of obstructions and must slope upward away from the furnace.

Inspect the furnace return air duct connection to ensure duct is sealed to the furnace and terminates outside the space containing the furnace.

Inspect the physical support of the furnace to guarantee that it is sound without sagging, cracks or gaps around base and it maintains seal between base and support.

During a seasonal check the service technician will con- duct a combustion analysis. The technician will also in- spect the indoor blower, burner flames, electrical connec- tions and the venting system.

Blower

Check the blower wheel for debris and clean if necessary. The blower motors are prelubricated for extended bearing life. No further lubrication is needed.

WARNING

The blower access panel must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal inju- ry or death.

Burner Flame

CAUTION

To ensure proper operation, a licensed professional service technician (or equivalent) should check the burner flame and conduct a combustion analysis annually.

Electrical

1 − Check all wiring for loose connections.

2 − Check for the correct voltage at the furnace (furnace operating).

3 − Check amp−draw on the blower motor with blower ac- cess panel in place.

Motor Nameplate__________Actual__________

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ML180UHE, Gas Furnace specifications

Lennox International Inc is well-known for its commitment to sustainability, innovation, and efficiency in the HVAC industry. One of their standout offerings is the EL195DFE Series gas furnace, designed to provide optimum heating performance while maintaining energy efficiency.

The EL195DFE Series gas furnace operates with an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 95 percent. This means that 95 percent of the fuel consumed is converted into usable heat, ensuring lower energy bills and a reduced environmental footprint. The high-efficiency rating makes it an ideal choice for homeowners looking to upgrade their heating system without sacrificing comfort.

A notable feature of the EL195DFE Series is its two-stage heating capability. This technology allows the furnace to adjust its heating output based on the home’s requirements, operating at a lower capacity during milder conditions and ramping up its output during colder weather. This not only enhances comfort by reducing temperature fluctuations, but it also contributes to energy savings, as the system does not run at full capacity unnecessarily.

Additionally, the EL195DFE Series is equipped with a variable-speed blower motor. This feature ensures that air is distributed evenly throughout the home, reducing hot and cold spots. The variable speed operation also contributes to quieter operation, allowing for a more peaceful indoor environment.

One of the key characteristics of the EL195DFE Series is its robust construction and reliability. The furnace is built with high-quality materials, designed to withstand years of use while minimizing the likelihood of breakdowns. Furthermore, Lennox provides an extensive warranty for this product, giving homeowners peace of mind regarding their investment.

Designed with ease of installation and maintenance in mind, the EL195DFE Series gas furnace includes a user-friendly control board and an integrated condensing design, which simplifies maintenance while providing efficient condensate management.

In summary, the Lennox EL195DFE Series gas furnace exemplifies advanced engineering and technology in home heating solutions. With its high AFUE rating, two-stage heating, variable-speed blower motor, and durable construction, it stands out as an energy-efficient option that promises comfort, reliability, and reduced energy costs for homeowners looking for an upgrade to their heating systems. Lennox continues to lead the market in HVAC innovations, making their products a sought-after choice for conscientious consumers.