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ml17kc2

Name: ML17KC2 | Two Stage Air Conditioner | Lennox
Brand: Lennox
Rating: 4.4 (373 reviews)

Air Conditioner

Mid-efficiency, two-stage air conditioner compatible with 2025 Compliant Refrigerant

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Rating

Price Guide

Efficiency Rating (SEER 2)

up to 18

Energy Star^®

ENERGY STAR^® Qualified

Refrigerant Type

R-454B

Warranty

Merit models come with a 5-Year Limited Warranty on compressors and a 5-Year Limited Warranty on covered components. A 10-Year Extended Limited Warranty is available with product registration. For more information, visit www.Lennox.com/WarrantyYourWay.

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Features

Balanced comfort and efficiency

While most air conditioners are single stage, meaning they're either on or off, this air conditioner can heat or cool at two different speeds. Most of the time the unit will meet cooling needs at its lower speed, resulting in balanced and consistent temperatures with lower energy use.

Efficient and Affordable

The ML17KC2 offers energy efficiencies of up to 18.00 SEER2, delivering comfort and energy savings at a more affordable price.

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.

A refrigerant that’s better for the environment.

This product is compliant with 2025 EPA regulations for lower global warming potential (GWP) refrigerants. The Lennox choice of 2025 Compliant Refrigerant has a lower GWP than its predecessor and is formulated to provide excellent, reliable performance of your system for years to come.

Ratings & Reviews

See what other customers are saying about
ML17KC2 Air Conditioner

5/5

January 25, 2026

5/5

Lennox 2 stage has exceeded our expectations

January 20, 2026

We have only had our new Lennox unit about 3 weeks and we can already tell a difference. The temperature in our house stays constant with less humidity that seem to be helping my allergies. When the unit does need to adjust the temperature it is so quiet and does not disturb our sleep at night. We feel like we made a great decision.