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Singnature Series
MRCOOL Signature Series 4 Ton 13.8 SEER2 Air Conditioner Condenser | MCAESAS4T4821AA
$2,271.00
In StockShips in 1-2 business days
High efficiency. Quiet performance. Easy installation.
A smart, reliable choice for year-round comfort.
Best for:
- Bedrooms
- Home Offices
- Additions
- Garages
- See specs
- Cooling
- See specs
- Heating
- See specs
- Quiet Inside
- Rated
- High Efficiency
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Brand Information
MrCool
- Support Number
- (270)366-0457
- Official Site
- MrCool Official Site
Product Overview Full product description Read the longer product copy, features, and application notes. +
MRCOOL — Air Conditioner
MRCOOL Signature Series 4 Ton 13.8 SEER2 Air Conditioner Condenser | MCAESAS4T4821AA
MRCOOL Signature Series 4 Ton 13.8 SEER2 Air Conditioner Condenser | MCAESAS4T4821AA
Summary
The MRCOOL® Signature Series 48k Cooling Only Condenser offers efficient, dependable cooling designed to meet the needs of modern homeowners. With a 13.8 SEER2 and 11.2 EER2 rating, this unit is built to deliver comfort while helping lower your energy bills. Whether you're replacing an older system or installing in a new build, this condenser delivers performance you can trust. Pre-charged with R-454B refrigerant, the unit meets current environmental standards while maintaining strong cooling capabilities. At the heart of the system is the reliable scroll compressor, supported by inner-groove copper tubing for efficient heat exchange and improved thermal conductivity. Though powerful, the system is surprisingly quiet. Operating at just 65 decibels, about as loud as a dishwasher or a normal conversation, it's ideal for residential use where noise can be a concern. A sound-dampening top reduces operating volume, while a steel louver coil guard and wire fan discharge grille further protect internal components from debris, impacts, and unruly weather conditions. With compact sizing and user-friendly service features like sweat connection valves and a convenient gauge port, installation and maintenance are simple. MRCOOL® also includes its industry-leading 10-year limited parts warranty and a limited compressor warranty. The MRCOOL® Signature Series 48k Cooling Only Condenser is a strong, smart choice for year-round cooling comfort.
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
- 48,000 BTU cooling capacity (4 Ton)
- 13.8 SEER2 efficiency rating
- 11.2 EER2 efficiency rating
- Reliable scroll compressor for dependable operation
- Quiet operation (65 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 150 ft maximum line set length
- 4000 CFM airflow
Complete Technical Specifications
| Brand | MRCOOL |
| Series | Signature Series Air Conditioner Condenser |
| Model | MCAESAS4T4821AA |
| UPC | 840255595759 |
| GTIN | 00840255595759 |
| Unit Type | Split System AC Condenser |
| Certifications | UL Listed, CSA Listed, ETL Listed, AHRI Certified |
| Cooling Capacity | 48,000 BTU (4 Ton) |
| Efficiency Ratings | 13.8 SEER2, 11.2 EER2 |
| Refrigerant | R-454B (116.4 oz) |
| Electrical | 208/230V 1 Phase 60 Hz |
| Min Circuit Ampacity | 30A |
| Max Fuse Breaker | 50A |
| Compressor Type | Scroll |
| Condenser Fan Motor | PSC, 1/3 HP |
| CFM | 4000 |
| Sound Rating | 65 dBA |
| Min Ambient Cooling | 59°F |
| Max Lineset Length | 150 ft |
| Liquid Line Size | 3/8" |
| Suction Line Size | 7/8" |
| Net Dimensions (HxWxD) | 32.875" x 29.14" x 29.14" |
| Net Weight | 204 lbs |
| Shipping Dimensions | 34.8" x 30.3" x 30.3" |
| Shipping Weight | 214 lbs |
Performance Features
| Compatible Equipment | Signature Series Multi-Position or Stud Mount Air Handlers |
| Compressor Technology | Reliable scroll compressor for long-term dependability |
| Refrigerant | Eco-friendly R-454B with lower global warming potential |
| Noise Reduction | Sound-dampening top for quiet operation (65 dBA) |
| Protection Features | Steel louver coil guard and wire fan discharge grille |
| Installation Features | Sweat connection valves with convenient gauge port |
| Extended Installation | Supports up to 150 ft line set length for flexible placement |
| Airflow Capacity | 4000 CFM for high-capacity 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 48k Cooling Only Condenser features a reliable scroll compressor designed for maximum durability and efficient operation. The high-efficiency inner-groove copper tubing enhances heat transfer while the sound-dampening top reduces operational noise to just 65 decibels. Built with quality components and protective features including a steel louver coil guard, this 4-ton air conditioner condenser delivers powerful performance for consistent comfort in larger residential spaces. With its 13.8 SEER2 cooling efficiency, this unit provides balanced energy savings and powerful cooling capacity.
Installation Advantages
This 4-ton air conditioner condenser simplifies installation with its pre-charged R-454B refrigerant system. The unit supports extended line set lengths up to 150 feet, providing maximum flexibility for various installation scenarios. The compact cabinet design allows for efficient placement 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 high-capacity 4000 CFM airflow and durable construction, this condenser is an ideal cooling solution for large residential applications requiring reliable and quiet operation.
Specs & Documents Product details Open technical specs, manuals, videos, and product documents. +
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.