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Signature Series

MRCOOL Signature Series 2 Ton 14.3 SEER2 Air Conditioner Condenser | MCAESAS4T2421AA

SKU MCAESAS4T2421AA Air Conditioner Condenser Units14.3 SEER2208-230V
$1,679.00
In StockShips in 1-2 business days
High efficiency. Quiet performance. Easy installation.

A smart, reliable choice for year-round comfort.

Best for 24K room setups:
  • Large living rooms
  • Open areas
  • Workshops
  • Basements
24,000 BTU
Cooling
24,000 BTU
Heating
See specs
Quiet Inside
Rated
High Efficiency

Brand Information

MrCool
Support Number
(270)366-0457
Product Overview Full product description Read the longer product copy, features, and application notes.

MRCOOL Signature Series 2 Ton 14.3 SEER2 Air Conditioner Condenser | MCAESAS4T2421AA

 

Summary

The MRCOOL® Signature Series 24k Cooling Only Condenser offers dependable, energy-efficient performance for homeowners looking to upgrade their comfort without increasing energy bills. With a 14.3 SEER2 and 11.7 EER2 rating, this system delivers consistent, cost-effective cooling for a wide range of residential applications. This unit comes factory pre-charged with R-454B refrigerant, a next-generation, low-GWP refrigerant specifically developed to comply with today’s stricter environmental regulations. At the heart of this high-performing unit is a durable single-speed scroll compressor, engineered to provide long-lasting, dependable operation. Scroll compressors are widely known for their quiet, efficient performance and reduced mechanical wear, making them a superior choice for residential HVAC systems. To further enhance efficiency and heat transfer capabilities, the unit features inner-groove copper tubing—a design that increases surface area contact, boosts refrigerant flow, and promotes quicker, more effective temperature regulation throughout the system. Despite its strength, the unit operates at only 60 decibels, quiet enough for everyday residential use. A sound-dampening top helps reduce noise, while a steel louver coil guard and wire fan discharge grille help safeguard internal parts and extend the unit’s lifespan. The system is backed by the MRCOOL® guarantee, a 10-year limited parts warranty and a limited compressor warranty, offering added assurance of long-term reliability and support. Efficient, quiet, and built to last, the MRCOOL® Signature Series 24k Cooling Only Condenser is a smart choice for reliable home cooling.

 

Important

AHRI certified- meets industry standards.Register your productto activate warranty coverage.This condenser contains R-454B refrigerant, which is classified as an A2L refrigerant. To comply with safety standards, this unit must be paired with an R-454B air handler or evaporator coil equipped with a leakage detection system. Failure to comply with these requirements may result in safety hazards and could void the warranty.

 

Key Features

  • 24,000 BTU cooling capacity (2 Ton)
  • 14.3 SEER2 efficiency rating
  • 11.7 EER2 efficiency rating
  • Durable single-speed scroll compressor for reliable operation
  • Quiet operation (60 dBA)
  • Pre-charged with R-454B refrigerant
  • Factory pre-charged for 15-foot line set
  • Compact design for easy installation
  • Steel louver coil guard for component protection
  • AHRI certified
  • Extended 100 ft maximum line set length
  • 1950 CFM airflow

 

Complete Technical Specifications

Brand MRCOOL
Series Signature Series Air Conditioner Condenser
Model MCAESAS4T2421AA
UPC 840255595728
GTIN 00840255595728
Unit Type Split System AC Condenser
Certifications UL Listed, CSA Listed, ETL Listed, AHRI Certified
Cooling Capacity 24,000 BTU (2 Ton)
Efficiency Ratings 14.3 SEER2, 11.7 EER2
Refrigerant R-454B (79.3 oz)
Electrical 208/230V 1 Phase 60 Hz
Min Circuit Ampacity 15.2A
Max Fuse Breaker 20A
Compressor Type Scroll
Condenser Fan Motor PSC, 1/9 HP
CFM 1950
Sound Rating 60 dBA
Min Ambient Cooling 59°F
Max Lineset Length 100 ft
Liquid Line Size 3/8"
Suction Line Size 3/4"
Net Dimensions (HxWxD) 25" x 23.6" x 23.6"
Net Weight 133 lbs
Shipping Dimensions 26.2" x 24.8" x 24.8"
Shipping Weight 139 lbs

Performance Features

Compatible Equipment Signature Series Multi-Position or Stud Mount Air Handlers
Compressor Technology Durable single-speed scroll compressor for long-term reliability
Refrigerant Eco-friendly R-454B with lower global warming potential
Noise Reduction Sound-dampening top for quiet operation (60 dBA)
Protection Features Steel louver coil guard and wire fan discharge grille
Installation Features Sweat connection service valves with easy-access gauge port
Extended Installation Supports up to 100 ft line set length for flexible placement
Airflow Capacity 1950 CFM for efficient cooling performance

Warranty Information

  • Registered Warranty: 10 years parts, limited compressor
  • Base Warranty: 10 years parts, limited compressor
  • Registration may be required for full warranty coverage

 

Manuals & Certifications

Safety Information

PROPOSITION 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

 

Advanced Technology

The MRCOOL Signature Series 24k Cooling Only Condenser features a durable single-speed scroll compressor designed for maximum durability and energy-efficient operation. The high-efficiency inner-groove copper tubing enhances heat transfer efficiency while the specially designed sound-dampening top reduces operational noise to just 60 decibels. Built with quality components and protective features including a steel louver coil guard, this 2-ton air conditioner condenser delivers reliable performance for consistent comfort in residential spaces. With its 14.3 SEER2 cooling efficiency, this unit provides energy-saving operation without compromising on cooling power.

Installation Advantages

This 2-ton air conditioner condenser simplifies installation with its pre-charged R-454B refrigerant system. The unit supports extended line set lengths up to 100 feet, providing flexibility for various installation scenarios. The compact cabinet design allows for easy placement in tight spaces while maintaining accessibility to service valves and gauge ports for straightforward maintenance. The unit is designed to work with Signature Series Multi-Position or Stud Mount Air Handlers for complete system compatibility. With its efficient 1950 CFM airflow and durable construction, this condenser is an ideal cooling solution for residential applications requiring reliable and quiet operation.

Specs & Documents Product details Open technical specs, manuals, videos, and product documents.

Technical Data

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Product FAQs

Product FAQs

Helpful answers matched to this product, brand, specs, and configuration.
Where should I purchase MRCOOL equipment?

MRCOOL products are sold through authorized retailers and distributors rather than directly by MRCOOL to consumers. Purchasing through an authorized seller helps confirm that the equipment is genuine and that the correct purchase records are available for product and warranty support.

Can MRCOOL components from different series, generations, or refrigerant platforms be mixed?

Do not assume that MRCOOL indoor units, outdoor units, line sets, controls, or accessories are interchangeable. Use only manufacturer-approved combinations for the exact model family; in particular, MRCOOL states that R-410A products are not compatible with R-454B products and the refrigerants must never be mixed.

What makes an eligible MRCOOL DIY system different from a conventional mini-split?

Eligible MRCOOL DIY systems are designed around installation-friendly components such as factory-precharged line sets and compatible connection hardware. The included components vary by generation and package, and electrical work, permits, clearances, and local code requirements still need to be followed.

Does MRCOOL send technicians to a home or jobsite?

MRCOOL does not dispatch field technicians. Its in-house team provides phone and email assistance for diagnosis, troubleshooting, and product guidance, while the owner arranges and pays for any local on-site technician unless a specific written warranty program states otherwise.

Why do I need the exact MRCOOL model and serial number?

The model and serial number identify the exact equipment, generation, capacity, and applicable documentation or warranty. Use the identification labels on the equipment and MRCOOL’s registration guidance rather than relying only on a product title or general series name.

Are all MRCOOL systems designed for do-it-yourself installation?

No. Only product families specifically identified by MRCOOL as DIY-capable should be treated as do-it-yourself systems. Other lines, including the Advantage Series, require professional HVAC installation, so always follow the installation requirements for the exact model.

Where can I find MRCOOL manuals, specifications, certifications, and installation documents?

MRCOOL maintains a documentation library and a product support center with model-specific installation manuals, owner manuals, technical documents, certifications, warranty information, and troubleshooting resources. Search using the exact model number because documents can differ by series, generation, capacity, and refrigerant.

What types of products does MRCOOL offer?

MRCOOL offers a broad range of comfort products, including ductless mini-splits, central ducted split systems, packaged heat pumps, geothermal systems, water heaters, fans, thermostats, line sets, and HVAC accessories. Available capacities, refrigerants, efficiencies, and features depend on the exact product family and model.

When should an MRCOOL system be registered?

Register the system as soon as possible after purchase and installation. Several MRCOOL residential warranty programs require registration within 60 days of installation, or within 60 days of purchase when the installation date cannot be verified, but the exact requirement is controlled by the warranty document for the specific product.

Where can I purchase replacement parts for an MRCOOL system?

MRCOOL recommends starting with the original place of purchase because many dealers can special-order replacement parts. If that is not available, use an authorized MRCOOL parts distributor and confirm compatibility with the exact model and serial number before ordering.

How can I contact MRCOOL customer or technical support?

MRCOOL provides support by phone at (270) 366-0457, by email at support@mrcool.com, and through its online support-request form. Have the exact model and serial number available so the support team can identify the correct product documentation and next steps.

Can MRCOOL support work with my local HVAC technician?

Yes. If a local technician is scheduled, MRCOOL’s in-house support team can help coordinate troubleshooting and product guidance with that technician. The technician should have the model, serial number, system configuration, measurements, error codes, and a clear description of the issue available.

Where can I find MRCOOL troubleshooting and error-code information?

MRCOOL’s support center provides separate technical-support sections for ductless systems, residential ducted systems, product-specific error codes, wiring guidance, installation procedures, and troubleshooting articles. Use the exact series and model because codes and procedures are not universal across all MRCOOL equipment.

How do I register an MRCOOL product for warranty coverage?

Register the product through MRCOOL’s online warranty-registration page. Be prepared to provide the serial number along with purchase, owner, installation-location, and installer information requested by the registration form.

Does every MRCOOL product have the same warranty?

No. MRCOOL publishes separate warranty terms for different product families, generations, and applications. For example, the current DIY 5th Generation warranty lists 5-year parts and 7-year compressor coverage, but that coverage should not be assumed for another MRCOOL series; always check the exact product warranty document.

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