Decorative Only
« All air-conditioners
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.

View Full Product Specifications

Cooling Savings

Our Lennox Dealers are here to help

Your Location:
Find a Dealer


Decorative Only
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.

Decorative Only

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.

Decorative Only
Decorative Only

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.

Decorative Only
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.

Decorative Only
Decorative Only

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

3 Stars 3/5

New Unit less than 1 month old

June 12, 2024

After 1st install noticed there was an excessive clicking noise at shut down. Notified company, Sent a Tech out to look at the issue. Company notified Lennox and a replacement was installed a week later. Great Service! - However the second unit had the same annoying clicking at shut down. Contacted the Salesman from the company we purchased from. Said this is within the normal operation of the unit. This unit powers up fine runs fairly quiet and certainly cools the house down. However with the annoying loud clicking at shutdown kind of overshadows the positives of this unit.



Age: 55 - 65

Gender: Male

Reason for Replacement: Planned

Warranty Satisfaction:
3 Stars 3/5

A basic SEER14 unit

June 07, 2024

A replacement for a 33 year old unit with a rusted & leaking coil pan. Works just as good as the old unit but not noticeably better. A much larger outside unit than the original. I just hope it lasts as long as the original. Only time will tell.


Philadelphia, PA

Age: 55 - 65

Gender: Male

Reason for Replacement: Planned

Warranty Satisfaction:
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

Map pin

Get answers from a Lennox® Dealer.

It's easy to find an expert Lennox Dealer who can help you make the most of your HVAC system.

View Now

Get the answers you need from your preferred dealer:

AZ Air Cond & Heating

Go to my Dealer's Page
Rio Verde
Tom's Thumb Trailhead
McDowell Mountain Regional Park
Mountain Gate
Eagle Mountain
Butterfly Wonderland
Roadrunner Park
Grayhawk Golf Club
Fountain Hills
Hurricane Harbor Park
Fort McDowell
Phon D Sutton
Arizona Business Park
Thunder Bird Conservation Park
Taliesin West
Phoenix Mountains Preserve
Paradise Valley
alt goes here
alt goes here

Map data ©2022 Google
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

alt text goes here

It's also easy to find an expert Lennox® dealer who can help
you make the most of your HVAC system.

View Now