$11,132.00Original price was: $11,132.00.$10,903.00Current price is: $10,903.00.
3 Ton-Merit Two-Stage System – Complete Home Comfort Bundle
Upgrade your home’s heating and cooling with this 3 Ton-Merit Two-Stage System. Featuring the ML17KC2 two-stage air conditioner, ML180V gas furnace, and CK40HT-71 horizontal evaporator coil, this bundle delivers energy-efficient, reliable, and quiet performance year-round. With SEER2 16.5 and EER2 13.4, enjoy lower energy bills without sacrificing comfort. The two-stage AC provides precise cooling, the variable-speed furnace ensures even warmth, and the durable horizontal coil maximizes efficiency. Safe, future-ready R-454B refrigerant and built-in Refrigerant Detection System (RDS) give you peace of mind. This bundle is the ideal solution for homeowners seeking a complete, affordable HVAC upgrade.
✅ Mid-efficiency two-stage cooling with SEER2 16.5 ✅ Quiet, reliable operation for year-round comfort ✅ Energy-efficient 80% AFUE variable-speed furnace ✅ Durable, horizontal evaporator coil with RDS safety system ✅ Complete HVAC bundle for easy installation and lasting performance
3 Ton Merit Two-Stage System The Complete Home Comfort Bundle
Upgrade your home’s heating and cooling with the 3 Ton-Merit Two-Stage System. This bundle combines the ML17KC2 two-stage air conditioner, ML180V gas furnace, and CK40HT-71 horizontal evaporator coil. Together, they provide reliable, energy-efficient performance year-round. It’s ideal for homeowners who want an affordable, modern HVAC system that saves energy and increases comfort.
SEER2: 16.5
EER2: 13.4
With a 16.5 SEER2 and 13.4 EER2, this system offers precise cooling and consistent heating. It uses 2025 R-454B refrigerant, making it a safe and eco-friendly choice. Homeowners enjoy improved comfort, lower bills, and a system that’s ready for the future.
Efficient Cooling – ML17KC2 Air Conditioner
The ML17KC2 two-stage AC delivers mid-efficiency cooling for your home. Its two-stage compressor adjusts output for exact cooling. This keeps temperatures consistent while reducing energy use. The high-efficiency outdoor coil improves heat transfer.
Additionally, it operates quietly at sound levels as low as 73 dB. The Quantum™ Coil ensures durability, and braze-free installation simplifies setup.
Benefits: ✅ Two-stage cooling for precise temperature control ✅ ENERGY STAR® certified for lower energy bills ✅ Quiet operation for a peaceful home ✅ Durable Quantum™ Coil for long-lasting performance ✅ Braze-free installation for flexibility ✅ Built-in RDS sensor for safety
Consistent Heating – ML180V Gas Furnace
The ML180V furnace provides steady, efficient heat. Its variable-speed fan motor reduces hot and cold spots. As a result, humidity and temperature are better controlled.
It delivers 80% AFUE efficiency. When paired with a Lennox® heat pump, it supports dual-fuel operation, automatically switching between gas and electricity.
Benefits: ✅ 80% AFUE efficiency for lower energy costs ✅ Variable-speed fan for consistent heat ✅ Dual-fuel ready with Lennox® heat pump ✅ Quiet, reliable operation ✅ Durable steel cabinet for long-lasting performance ✅ Ideal for furnace replacements or upgrades
Reliable Horizontal Coil – CK40HT-71
The CK40HT-71 horizontal evaporator coil enhances efficiency for your HVAC system. It’s designed for R-454B refrigerant and 2025 compliance. Its factory-installed TXV optimizes heat transfer. The built-in RDS sensor provides leak detection and safe operation.
Braze-free installation and dual-drain polymer pan simplify setup. The coil is compatible with major HVAC brands and built for long-term performance.
Benefits: ✅ Horizontal, R-454B compliant evaporator coil ✅ Built-in RDS sensor for safety ✅ Efficient TXV for consistent cooling ✅ Durable aluminum construction ✅ Flexible braze-free installation ✅ Dual-drain, polymer pan reduces leaks
Why Choose This Bundle?
This 3 Ton-Merit Two-Stage System bundle offers quiet, reliable, and efficient home comfort. By combining a two-stage AC, energy-efficient gas furnace, and durable horizontal coil, it simplifies installation and reduces energy costs. It’s affordable, safe, and ready for 2025 refrigerant standards, making it ideal for upgrades or new installations.
Key Benefits at a Glance
✅ Complete 3 Ton bundle: AC, furnace, and horizontal coil ✅ SEER2 16.5 / EER2 13.4 for energy efficiency ✅ Precise cooling and even heating year-round ✅ Quiet operation across all components ✅ Built-in RDS sensor for enhanced safety ✅ Durable, long-lasting construction ✅ Affordable and future-ready HVAC solution
Air Conditioner Overview
Model #: ML17KC2-036
Product Overview
Merit® Series | ML17KC2 Air Conditioner – Mid-Efficiency Two-Stage Cooling with 2025 Compliant Refrigerant
Upgrade your home comfort with the Merit® Series ML17KC2 Air Conditioner, a two-stage central air conditioning system built for efficiency, reliability, and modern standards. Designed to work with the new 2025 compliant R-454B refrigerant, this unit balances comfort and sustainability while delivering dependable cooling all summer long. Perfect for homeowners searching for a new AC installation or air conditioner replacement, the ML17KC2 offers lasting value.
Energy Efficiency That Saves You Money
With ratings up to 17.00 SEER2, this ENERGY STAR® Certified air conditioner helps reduce energy costs while delivering consistent performance. The high-efficiency outdoor coil improves heat transfer and lowers air resistance, ensuring smooth operation. For homeowners comparing air conditioning units for homes, this model is an excellent balance of affordability and performance.
Quiet Cooling for Everyday Comfort
The ML17KC2 was designed with peace in mind. Operating at sound levels as low as 73 dB, it is quieter than many standard residential HVAC systems. A direct-drive outdoor fan reduces vibration and noise while increasing system life. This makes it the ideal quiet central AC system for families who want comfort without constant background noise.
Built to Last with Lennox Craftsmanship
Engineered with the exclusive Lennox Quantum™ Coil, this unit resists corrosion and stands strong in tough climates. Its heavy-gauge, galvanized steel cabinet and zinc-coated base protect against rust and wear, while the braze-free installation design simplifies setup. Together, these features make the ML17KC2 one of the most durable choices among air conditioning systems for homes.
Safety and Sustainability Combined
The ML17KC2 uses R-454B refrigerant, a low-GWP, eco-friendly solution that complies with new EPA refrigerant standards. With its Refrigerant Detection System (RDS), the unit meets advanced A2L safety codes by detecting leaks and dispersing refrigerant safely. This modern two-stage air conditioner not only keeps your home comfortable but also supports a greener future.
Key Benefits at a Glance
✅ Mid-efficiency two-stage air conditioner compatible with 2025 compliant refrigerant ✅ Up to 17.00 SEER2 efficiency with ENERGY STAR® certification ✅ Engineered for quiet operation, as low as 73 dB ✅ Built with Quantum™ Coil for long-lasting durability ✅ Heavy-duty rust-resistant cabinet for all-weather protection ✅ Advanced Refrigerant Detection System (RDS) for safety ✅ Perfect for air conditioner replacement or new central AC installation
Product Specifications:
Brand
Lennox
Catalog Number
25U63
Model/Part Number
ML17KC2-036-230
Base Unit of Measure
Unit(S)
Family
ML17KC2
Series
Merit
Type
Two-stage Air Conditioner
Nominal Cooling Capacity
3 Ton
Product Voltage
208-230 VAC 1 Ph 60Hz
Product Depth
28.25 Inch
Product Width
28.25 Inch
Product Height
29.25 Inch
Compressor Type
2 Stage
Number of Compressors
1 Compressor
SEER2
Up to 17.00 SEER2
EER2
Up to 13.00 EER2
Gross Weight
188 Lbs.
Liquid Line OD
3/8 Inch
Suction Line OD
7/8 Inch
Energy Star Certified
Yes
Refrigerant Type
R-454B
Furnace Overview
Model #: ML180UH070V36B
Order #: 17Y71
Product Overview
Merit® Series | ML180V Gas Furnace – Affordable, Energy-Efficient Heating with Variable-Speed Comfort
The Merit® Series ML180V Gas Furnace delivers dependable, fuel-efficient heating for your home. With an advanced variable-speed blower motor, this single-stage gas furnace provides more consistent airflow, reducing temperature swings and eliminating hot and cold spots. It’s the ideal choice for homeowners who want reliable performance, improved comfort, and lower heating bills — all at an affordable price.
Energy-Efficient Home Heating
With an 80% AFUE efficiency rating, the ML180V converts most of its fuel into usable heat, helping you save on monthly energy costs. When combined with a Lennox® heat pump, this unit operates as a dual-fuel heating system, automatically switching between gas and electric power to deliver the most cost-effective heating solution for your home.
Quiet & Reliable Operation
Engineered for comfort, the variable-speed fan motor runs more quietly than standard furnaces while maintaining steady temperatures. Built with a heavy-duty steel cabinet and premium internal components, the ML180V offers years of dependable performance, making it a smart investment for any home furnace replacement or new heating system installation.
Key Benefits of the ML180V Gas Furnace
✅ 80% AFUE efficiency rating helps lower energy bills ✅ Variable-speed motor ensures consistent comfort & better humidity control ✅ Dual-fuel capability when paired with a Lennox® heat pump ✅ Heavy-duty steel construction designed for lasting durability ✅ Quiet operation for a more peaceful home environment ✅ A smart, reliable choice for furnace replacement or new gas furnace installation
Product Specifications:
Brand
Lennox
Catalog Number
17Y71
Model/Part Number
ML180UH070V36B
Base Unit of Measure
Unit(S)
Family
ML180V
Series
Merit
Heating Capacity
66000 Btuh
Heating Efficiency
80% AFUE
Configuration
Upflow/Horizontal
Blower Size
3 Ton
Gas Stages
1 Stage Heat
Blower Type
Variable Speed
Product Voltage
115 VAC 1 Ph 60 Hz
Product Depth
27.75 Inch
Product Width
17.5 Inch
Product Height
33 Inch
Gross Weight
117 lbs.
Type
1-Stage Variable Speed Horizontal Gas Furnace
Energy Star Certified
No
California Only
This furnace does not meet the South Coast Air Quality Management District (SCAQMD) Rule 1111 and San Joaquin Valley Air Pollution Control District (SJVAPCD) Rule 4905 NOx emission limit (14 ng/J) and cannot be installed within the SCAQMD and SJVAPCD areas.
The Lennox® CK40HT-71 horizontal evaporator coil is designed for maximum performance, energy efficiency, and long-lasting reliability. Built exclusively for R-454B refrigerant and 2025 refrigerant compliance, this horizontal cased evaporator coil pairs perfectly with Lennox® air conditioners and heat pumps to deliver superior cooling, reliable airflow, and safe operation.
Factory-equipped with a thermostatic expansion valve (TXV) and a Refrigerant Detection System (RDS) sensor, this coil ensures optimized efficiency, leak detection safety, and peace of mind for modern HVAC systems.
Applications & Compatibility
Supports 1.5–5 ton HVAC system capacities
R-454B TXV included for improved efficiency and performance
Built-in RDS sensor with A2L refrigerant labeling for added safety
RDS line set sleeve for faster, easier installation
Seamlessly compatible with air conditioners and heat pumps
Cross-reference compatible with leading brands: Goodman CHPT, Daikin CHPT, Franklin CHPT, Amana CHPT
Coil Construction & Reliability
Engineered for durability and efficiency, the CK40HT-71 is built to last:
Braze-free fittings for flexible and time-saving installation
Sleeved distributor tubes improve coil strength and reduce vibration damage
Large surface area coil design maximizes heat transfer and cooling performance
Rifled aluminum tubing with hairpins and header tubes for lightweight strength and better efficiency
Non-corrosive, UV-resistant polymer drain pan with dual drain connections to reduce leaks
Designed for low air resistance and superior airflow in horizontal installations
Key Benefits of the CK40HT-71 Coil
✅ 2025 refrigerant compliant – dedicated R-454B coil ✅ Improved safety with built-in Refrigerant Detection System (RDS) ✅ Efficient cooling with factory-installed TXV for optimized performance ✅ Durable construction with rifled aluminum tubing & polymer drain pan ✅ Flexible installation with braze-free fittings and dual drain outlets ✅ Cross-compatible with Goodman, Daikin, Franklin, and Amana HVAC coils
SEER stands for Seasonal Energy Efficiency Ratio. It measures the cooling efficiency of an air conditioner or heat pump over an entire cooling season. Essentially, it tells you how much cooling output (BTUs) you get for every unit of energy (watt-hour) used.
Higher SEER = more efficient
SEER ratings have traditionally been used in the U.S. to compare energy efficiency across systems.
Example: A 14 SEER unit uses less electricity than a 10 SEER unit to produce the same cooling.
What is SEER2?
SEER2 is the updated efficiency rating standard that reflects new federal testing procedures implemented by the Department of Energy (DOE) in 2023. It measures efficiency more accurately by accounting for real-world conditions, including:
Energy usage in modern airflow and installation configurations
More realistic climate and seasonal variations
Changes in the refrigerants and equipment designs
Key difference: SEER2 ratings tend to be slightly lower than SEER ratings for the same unit, but they provide a truer representation of actual efficiency in your home.
Why SEER2 is the new standard
The DOE updated testing to better match how systems perform in real homes, rather than ideal lab conditions.
It encourages manufacturers to improve real-world efficiency, not just test-case efficiency.
For consumers, SEER2 ensures:
Better long-term energy savings
Improved comfort through more accurate performance expectations
Compliance with modern federal efficiency regulations
In short:
SEER = old efficiency measurement (ideal lab conditions)
SEER2 = modern, realistic efficiency standard (real-world performance)
Better quality = SEER2 units are designed and tested to give actual efficiency and savings, not just theoretical numbers.
Understanding EER vs EER2
What is EER?
EER stands for Energy Efficiency Ratio. It measures an air conditioner or heat pump’s efficiency at a single, specific outdoor temperature, usually 95°F.
Higher EER = more efficient at peak conditions.
Unlike SEER, which averages efficiency over a season, EER tells you how the unit performs under hot, steady-state conditions.
Example: A unit with an EER of 12 produces 12 BTUs of cooling for every watt of electricity consumed.
What is EER2?
EER2 is the updated testing standard introduced by the Department of Energy (DOE) to match the same real-world adjustments as SEER2.
Accounts for modern system designs, refrigerants, and installation configurations.
Measures efficiency more realistically under peak operating conditions, rather than just ideal lab setups.
Like SEER2, EER2 numbers are usually slightly lower than traditional EER, but they are a more accurate reflection of actual performance.
Why EER2 is the new standard
Ensures consistency with SEER2 testing methodology.
Reflects true cooling efficiency under extreme heat, where peak performance matters most.
Helps consumers understand real-world energy use and savings potential during the hottest days.
Meets modern federal efficiency regulations and encourages manufacturers to improve performance under actual conditions.
In short:
EER = old standard, measured under lab conditions at 95°F
EER2 = modern standard, measured under realistic, real-world peak conditions
Better quality = EER2 gives you true peak efficiency, not just theoretical performance.
