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- 2 ton - best for spaces between 1000 - 1200 sq ft depending on your home's insulation and your climate
- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
- Heat pumps are all electric and good for mild and cold climates.
- If you have an indoor furnace, or air handler, along with an outdoor AC unit, this system will serve as a replacement for both.
Lennox Merit 2 Ton 14.3 SEER2 Heat Pump System - R454B
- Condenser: ML14KP1-024-230
- Air Handler: CBK45UHPT-024
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- 2 ton - best for spaces between 1000 - 1200 sq ft depending on your home's insulation and your climate
- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
- Heat pumps are all electric and good for mild and cold climates.
- If you have an indoor furnace, or air handler, along with an outdoor AC unit, this system will serve as a replacement for both.
Lennox Merit 2 Ton Split System Heat Pump Condenser - Up to 17 SEER2, R454B
Model Number
ML14KP1-024-230
Dimensions
28-1/4" W x 28-1/4" D x 43-1/4" H
Documents
ML14KP1-024-230 Specifications
Warranty
Parts: 5 years
Lennox Merit 2 Ton Upflow/Horizontal Air Handler - Quantum Coil, Factory-Installed TXV, R454B
Model Number
CBK45UHPT-024
Dimensions
18-1/2" W x 22" D x 45-1/2" H
Documents
Warranty
Parts: 5 years
Heat Kit Options
AHRI Number
215710129
Reliable Year-Round Heating and Cooling from Lennox
Upgrade your home comfort with the Lennox Merit ML14KP1-024-230 2 Ton Heat Pump Condenser. Designed to provide both heating and cooling from one outdoor unit, this Merit® Series heat pump combines dependable single-stage operation with Lennox engineering for an efficient and practical home comfort solution.
When paired with compatible indoor equipment, the ML14KP1 series can achieve efficiency ratings of up to 17 SEER2 and 8.2 HSPF2, helping deliver comfortable indoor temperatures while keeping energy efficiency in mind. The ML14KP1-024-230 provides a nominal 2-ton capacity and operates on 208/230V single-phase power.
Key Features
- 2 Ton Heat Pump – Provides both heating and cooling when paired with compatible indoor equipment.
- Up to 17 SEER2 – Offers energy-efficient cooling performance with a properly matched system.
- Up to 8.2 HSPF2 – Designed for efficient heat pump heating performance.
- R-454B Refrigerant – Uses a lower-GWP refrigerant with zero ozone depletion potential.
- Single-Stage Scroll Compressor – Provides consistent operation with design features that help reduce operating noise.
- Lennox Quantum™ Coil – Aluminum alloy tube and fin construction provides excellent corrosion resistance.
- Durable Steel Cabinet – Heavy-gauge, louvered steel panels help protect internal components from outdoor conditions.
Lennox Quantum™ Coil for Lasting Performance
The ML14KP1 features Lennox's Quantum™ Coil, designed and manufactured with an enhanced aluminum alloy tube and fin construction. Its corrosion-resistant design helps protect one of the most important components of your heat pump while supporting dependable heat transfer and long-term performance.
Dependable Single-Stage Comfort
A single-stage scroll compressor provides straightforward and reliable heating and cooling operation. The compressor's design provides uniform suction and constant discharge flow, while low gas pulses, a discharge-line muffler, and resilient rubber mounting help reduce operating sound and vibration.
R-454B Refrigerant
The Lennox ML14KP1 uses R-454B, a lower-global-warming-potential refrigerant with zero ozone depletion potential. Because R-454B is classified as an A2L refrigerant, compatible indoor equipment requires an approved refrigerant detection system for safe system operation.
Built for Outdoor Durability
A heavy-gauge steel cabinet with a pre-painted powder finish and louvered panels helps protect the condenser's internal components. Lennox also uses a zinc-coated steel base designed to resist rust and corrosion, while centralized refrigerant and electrical connections provide convenient service access.
Choose the Lennox Merit ML14KP1-024-230 for dependable 2-ton heating and cooling backed by Lennox engineering. Pair it with compatible indoor equipment to build an efficient, reliable home comfort system.
Flexible Indoor Comfort with Reliable Lennox Performance
Complete your residential heating and cooling system with the Lennox Merit CBK45UHPT-024 2 Ton Air Handler. Designed for upflow or horizontal installation, this versatile indoor unit combines a corrosion-resistant Quantum™ Coil, multi-speed blower operation, and factory-installed R-454B system components.
The CBK45UHPT-024 provides a nominal 2-ton capacity and is designed for use with compatible R-454B air conditioners and heat pumps. Its flexible configuration helps accommodate a variety of installation layouts while supporting dependable airflow and efficient indoor comfort.
Key Features
- 2 Ton Air Handler – Designed for compatible residential split-system applications.
- Upflow or Horizontal Installation – Provides flexibility for different home and equipment layouts.
- Quantum™ Coil – Enhanced aluminum alloy construction delivers reliable heat transfer and corrosion resistance.
- Factory-Installed TXV – Helps regulate refrigerant flow for efficient system operation.
- Multi-Speed PSC Blower Motor – Offers multiple airflow settings to support proper system performance.
- Factory-Installed Refrigerant Detection System – Supports safe operation with R-454B refrigerant.
- Low-Leakage Insulated Cabinet – Helps limit air loss while reducing operational sound and cabinet condensation.
Corrosion-Resistant Quantum™ Coil
The Lennox-designed Quantum™ Coil features enhanced aluminum alloy tubing and fins for superior corrosion resistance. Its A-shaped coil configuration provides a large surface area for effective heat transfer and low air resistance, helping the complete system operate efficiently.
Multi-Speed Indoor Airflow
A multi-speed permanent split capacitor blower motor provides a choice of airflow settings to meet the requirements of the matched system. Blower speed can be adjusted through a wiring change, and the blower assembly is designed for convenient removal when service is required.
Designed for R-454B Systems
The CBK45UHPT-024 includes a factory-installed R-454B check and expansion valve along with a refrigerant detection sensor and blower control board. If refrigerant is detected, the system is designed to interrupt heating or compressor operation and run the blower to help reduce the refrigerant concentration in the conditioned space.
Flexible, Service-Friendly Construction
The unit ships ready for upflow or horizontal right-hand airflow and can be converted in the field for horizontal left-hand airflow. Its heavy-gauge galvanized steel cabinet includes removable service panels, multiple electrical entry points, an accessible filter door, and insulated construction for dependable indoor installation.
Choose the Lennox Merit CBK45UHPT-024 for flexible installation and dependable 2-ton indoor comfort. Pair it with compatible R-454B outdoor equipment to create a complete residential heating and cooling system.
Optional Electric Heat for Added Cold-Weather Comfort
Customize your Lennox heat pump system with an optional electric heat kit for additional heating support when outdoor temperatures drop. Installed inside the compatible Lennox CBK45 Series air handler, the heat kit provides electric resistance heat that works with the air handler's blower to distribute warm air through your home's existing duct system.
Available heat-kit capacities vary by the selected system and air handler, allowing the equipment to be matched to the home's heating requirements and available electrical service. Compatible configurations may be available with or without factory-mounted circuit breakers.
Electric Heat Kit Benefits
- Supplemental Heating – Adds an additional source of heat when the heat pump requires assistance during colder weather.
- Multiple Heating Capacities – Select systems are available with electric heat options ranging from 4 kW to 15 kW, depending on equipment compatibility.
- 208-230V Single-Phase Operation – Designed for compatible residential electrical applications.
- Responsive Heat Transfer – Helix-wound nichrome heating elements are positioned directly in the airflow to efficiently transfer heat into the moving air.
- Built-In Temperature Protection – Limit controls help protect the heating elements against excessive operating temperatures.
- Factory-Assembled Controls – Heat-kit controls and components are assembled and wired for installation inside the compatible air handler.
- Breaker and Non-Breaker Options – Depending on the selected capacity and system configuration, heat kits may be available with factory-mounted circuit protection or a terminal-block connection.
Choose the Right Heat Kit for Your Home
The correct electric heat kit should not be selected by system tonnage alone. Heating requirements, air-handler compatibility, airflow, supply voltage, available electrical service, wire sizing, circuit protection, and local electrical-code requirements should all be considered when selecting an electric heat option.
Select an available electric heat kit when configuring your system to add dependable supplemental heating for colder conditions. Final equipment compatibility and electrical requirements must be verified by a qualified HVAC or electrical professional.
Who installs the AC unit after I purchase it?
ACDirect does not yet provide installation services directly. However, most of our customers successfully arrange installation through local licensed HVAC contractors. These systems are designed for professional installation and typically include the components your installer will need.
Here’s how it works:
- Hire a licensed HVAC technician in your area
- Use platforms like Angi, Thumbtack, or a local HVAC directory to find reliable professionals
- Confirm your installer is experienced with the system type you’re purchasing
Note:
Please be aware if you choose to install HVAC equipment yourself and don’t possess proper HVAC licensing, you will void the manufacturer’s factory warranty. If you are capable of a factory-compliant installation yourself, you will need a licensed HVAC contractor to sign off on your work, fully confirming factory-compliant workmanship.
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