MRCOOL Signature Series 1.5 Ton 14.3 SEER2 Air Conditioner Condenser | MCAESAS4T1821AA
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Summary
The MRCOOL® Signature Series 18k Cooling Only Condenser is a reliable and efficient solution for homeowners seeking powerful cooling with long-term savings in mind. With a 14.3 SEER2 and 11.7 EER2 rating, this unit delivers steady performance while helping reduce energy costs. Pre-charged with eco-friendly R-454B refrigerant, this unit meets updated environmental standards without sacrificing performance. The refrigerant is factory-filled to simplify setup, saving time and reducing installation costs. Built for durability, the condenser features a dependable scroll compressor and high-efficiency inner-groove copper tubing. Operating at just 60 decibels, the unit is quiet enough for residential spaces, thanks to a sound-dampening top. A wire fan discharge grille and steel louver coil guard add an extra layer of protection to internal components. Installation and maintenance are straightforward, with sweat connection service valves and an easy-access gauge port. The compact design allows for flexible placement in a variety of locations. For added peace of mind and long-term confidence in your investment, MRCOOL® provides a comprehensive 10-year limited parts warranty and a limited lifetime compressor warranty. This industry-backed warranty reflects MRCOOL®'s commitment to quality, durability, and customer satisfaction. With dependable cooling, quiet operation, and long-term reliability, the MRCOOL® Signature Series 18k Cooling Only Condenser is built for lasting comfort.
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Important
AHRI certified - meets industry standards. Register your product to 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.
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Key Features
- 18,000 BTU cooling capacity (1.5 Ton)
- 14.3 SEER2 efficiency rating
- 11.7 EER2 efficiency rating
- Dependable 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
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Complete Technical Specifications
| Brand | MRCOOL |
| Series | Signature Series Air Conditioner Condenser |
| Model | MCAESAS4T1821AA |
| UPC | 840255595711 |
| GTIN | 00840255595711 |
| Unit Type | Split System AC Condenser |
| Certifications | UL Listed, CSA Listed, ETL Listed, AHRI Certified |
| Cooling Capacity | 18,000 BTU (1.5 Ton) |
| Efficiency Ratings | 14.3 SEER2, 11.7 EER2 |
| Refrigerant | R-454B (74 oz) |
| Electrical | 208/230V 1 Phase 60 Hz |
| Min Circuit Ampacity | 12.2A |
| 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 | 132 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 | Dependable 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 lifetime compressor
- Base Warranty: 10 years parts, limited lifetime compressor
- Registration may be required for full warranty coverage
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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.
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Advanced Technology
The MRCOOL Signature Series 18k Cooling Only Condenser features a dependable 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 1.5-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 1.5-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.
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We will prepare your order within 24 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION: Please be kindly informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery. To AVOID delays, please check if the provided phone number in the order details is a current number where you can be reached. You can also contact the carrier directly and refer to your tracking number to set up a date and time for your appointment. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. PLEASE verify your shipping address, as changes to the address after freight has shipped can result in an additional 15% or higher fee depending on freight weight and dimensions.
SMALLWARES INFORMATION: Please be informed that for smaller items, such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves, when these items are ordered individually, they may be shipped via FedEx without a signature requirement. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING: Please inspect your boxes thoroughly when you receive them. They should arrive shrink-wrapped and on a pallet. If you notice any damages or imperfections (e.g. crushed box or forklift hole), please write comments on the receipt before signing for delivery, no matter how small damages seem. Contact us immediately to assist you.
Shipping & Delivery
We will prepare your order within 24–48 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION
Please be informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery.
To AVOID delays, please make sure the phone number in your order details is accurate and one where you can be reached. You may also contact the carrier directly using your tracking number to schedule your delivery.
It is your responsibility to ensure a safe and secure delivery environment. We are not liable for any packages that are stolen or lost after delivery is confirmed.
Please verify your shipping address carefully. Changes to your shipping address after the freight has been shipped may result in additional fees of 15% or more, depending on freight weight and dimensions.
SMALLWARES INFORMATION
Smaller items such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves may be shipped via FedEx without a signature requirement if ordered individually.
It is your responsibility to ensure a safe delivery location. We are not liable for packages lost or stolen after delivery confirmation. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING
Please inspect your boxes carefully upon delivery. Shipments should arrive shrink-wrapped and on a pallet. If you notice any damage or signs of mishandling (such as a crushed box or forklift puncture), write comments on the delivery receipt before signing, even if the damage appears minor.
Contact us immediately if any issues arise so we can assist you promptly.
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