America's Leading Discount HVAC Supplier Since 2001 ...
and now, NASCAR Racing Sponsor
Ask an Expert
866 862 8922
Hours of Operation 8am - 8pm EST
8am - 8pm EST
- 4 ton - best for spaces between 2000-2400 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.
- If you have an indoor furnace, or air handler, along with an outdoor AC unit, this system will serve as a replacement for both.
MrCool Signature 4 Ton Central Air Conditioner System with Multi-Position Air Handler – 13.8 SEER2, R454B
- Condenser: MCAESAS4T4821AA
- Air Handler: MCAEAMPEF48E21AA
AC Size Calculator | Get BTU’s and Tonnage – Free and Easy!
Welcome! START HERE:
Use the sizing calculator below to calculate your required system size.
Follow these easy steps:
- 4 ton - best for spaces between 2000-2400 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.
- If you have an indoor furnace, or air handler, along with an outdoor AC unit, this system will serve as a replacement for both.
As low as $3,848.00
MrCool Signature 4 Ton Central Air Conditioning Condenser – 13.8 SEER2, R454B
Model Number
MCAESAS4T4821AA
Dimensions
29.14" W x 29.14" D x 32.875" H
Documents
MCAESAS4T4821AA Specifications
Warranty
10 Year Parts, Limited Lifetime Compressor
MrCool Signature 4 Ton Air Handler – Multi-Position, R454B
Model Number
MCAEAMPEF48E21AA
Dimensions
22" W x 24.5" D x 53.125" H
Documents
MCAEAMPEF48E21AA Specifications
Warranty
10 Year Parts, Limited Lifetime Compressor
AHRI Number
217513222
MRCOOL 4 Ton Air Conditioner Condenser – High-Efficiency 14 SEER2 Signature Series AC Unit
Reliable 45,000 BTU Cooling for Larger Homes and Demanding Applications
The MRCOOL Signature Series 4 Ton condenser delivers powerful cooling performance with up to 45,000 BTU capacity, making it ideal for larger homes and commercial environments. Designed for efficiency and durability, this system provides dependable cooling with up to 13.8–14.3 SEER2 performance.
With a rugged steel cabinet, protective coil guard, and modern R-454B refrigerant, this unit is built to last while meeting today’s environmental standards. Quiet operation and advanced sensors help ensure consistent performance and long-term reliability.
Features & Benefits
- 4 Ton capacity with up to 45,000 BTU cooling performance
- Up to 13.8–14.3 SEER2 energy efficiency
- Cooling-only condenser for dedicated AC applications
- Charged with R-454B low global warming potential refrigerant
- Quiet operation around 65 dB(A)
- Durable steel louver coil guard for added protection
- Compact cabinet design for easier installation
- Built-in sensors help monitor pressure and temperature
- Designed for 208/230V single-phase systems
- Backed by 10-year parts warranty and lifetime compressor coverage
MRCOOL 4 Ton Multi-Position Air Handler – Signature Series High-Capacity Indoor Unit
Strong 48,000 BTU Airflow for Large Homes and Commercial Applications
The MRCOOL Signature Series 4 Ton air handler is designed to deliver powerful airflow for large residential and commercial HVAC systems. With 48,000 BTU system compatibility, this unit ensures consistent air distribution and dependable comfort.
Its ECM motor provides efficient operation and improved airflow control, while the multi-position design allows for installation in a variety of configurations. Built for durability, this unit is a reliable choice for demanding applications.
Features & Benefits
- 4 Ton capacity for 48,000 BTU systems
- High-efficiency ECM blower motor
- Multi-position installation flexibility
- R-454B compatible for modern HVAC systems
- Copper A-coil with aluminum fins
- Quiet operation around 57 dB(A)
- Durable steel cabinet construction
- Compact design for easier installation
- Compatible with most thermostats
- 10-year limited parts warranty
MRCOOL Electric Heat Kit for Multi-Position Air Handlers – 5kW, 7.5kW & 10kW Auxiliary Heat Options
Reliable Supplemental Heating for 1.5–5 Ton HVAC Systems in Cold Weather Conditions
The MRCOOL electric heat kit is designed to provide dependable supplemental heating for Signature Series multi-position air handlers. Available in 5kW, 7.5kW, and 10kW options, these heat strips enhance system performance by delivering additional warmth when outdoor temperatures drop and heat pump efficiency decreases.
Engineered for seamless integration, each heat kit installs directly inside compatible MRCOOL air handlers and operates automatically through the system’s heating controls. With built-in safety features and durable heating elements, these kits offer a reliable and efficient solution for maintaining indoor comfort in colder climates.
Features & Benefits
- Available in 5kW, 7.5kW, and 10kW heating capacities
- Designed for MRCOOL multi-position air handlers (1.5–5 ton systems / 18K–60K BTU)
- Provides supplemental or backup heat for heat pump systems
- Helps maintain indoor comfort during cold weather and extreme conditions
- Installs directly inside the air handler cabinet for a clean, integrated setup
- Built-in circuit breaker for safety and service disconnect
- 208/230V single-phase operation
- Durable electric heating elements for long-term reliability
- Automatic operation through system thermostat controls
- Ideal for residential applications requiring auxiliary heat support
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.
Need help? Contact Our Experts
(866)-862-8922
Hours:
Monday - Friday: 8am to 9pm EST
Saturday: 8am to 8pm EST
Sunday: 11am to 8pm EST