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Merit® Series



Standard-efficiency, single-stage air conditioner

Price Guide
Efficiency Rating (SEER)
up to 17
Efficiency Rating (SEER 2)
up to 16.2

5-Year Limited Warranty on covered components including compressor. This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration.

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Illustration of The standard of operation

The standard of operation

The standard of operation

A single-stage unit is either on or off, working at full capacity when in use. With this simplified mode of operation, this product provides the heating and cooling levels you’d expect.

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Efficient and Affordable

The ML17XC1 offers energy efficiencies of up to 17.00 SEER and 16.20 SEER2, delivering comfort and energy savings at a more affordable price.

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ENERGY STAR® Certified

Heating, ventilation and air-conditioning (HVAC) equipment with the ENERGY STAR label meets or exceeds federal guidelines for energy-efficient performance. An ENERGY STAR-certified AC unit could cut your cooling costs by 30 percent.

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Illustration of Our Uncontested Quantum™ Coil

Our Uncontested Quantum™ Coil

Our Uncontested Quantum™ Coil

With years of rigorous testing under the most extreme conditions, our Quantum Coil – featuring a proprietary aluminum alloy exclusive to Lennox – is designed to weather the harshest elements.

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Humidity control

Pairing your air conditioner with a variable-speed furnace or air handler allows you to continuously maintain a slow circulation of air throughout your home, decreasing the amount of humidity in your home for improved indoor air quality and comfort.

Ratings & Reviews

See what other customers are saying about
ML17XC1 Air Conditioner

5 Stars 5/5

Really Happy with Purchase after 5 Months

April 03, 2024

I have this air condition paired with an Elite Lennox Air Handler and this works perfectly for our 2300 sq. ft. home. So much better on efficiency and keeps the house very cool. I think even less noisier than our older system and not sure why some reviews said it's loud. Great purchase!

Mr Vinny

Boca Raton, Fl.

Age: 45 to 54

Gender: Male

Reason for Replacement: Emergency

5 Stars 5/5

Excellent Product

March 15, 2024

Replaced my air conditioner with this product. Excellent choice.

Green check mark

Yes, I recommend this product.


Austell, Ga

Age: Over 65`

Gender: Female

Reason for Replacement: Planned

Warranty Satisfaction:
5 Stars 5/5

Great product!

January 18, 2024

We purchased a new Lennox system after our 2015 American Standard system failed in October. We immediately noticed improvements in our comfort and electricity bills. We no longer hear our system and we also no longer experience our system running all day. We're really happy with our new Lennox and have recommended the brand to friends and family!

Green check mark

Yes, I recommend this product.


Dallas, TX

Age: 25 to 34

Gender: Female

Reason for Replacement: Emergency

Warranty Satisfaction:
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Energy Star

Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR criteria. Ask your contractor for details or visit

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