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- 3.5 ton - best for spaces between 1700- 2100 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.
MrCool Signature 3.5 Ton Central Heat Pump System with Multi-Position Air Handler – 14.3 SEER2, R454B
- Condenser: MCAESHS4T4221AA
- Air Handler: MCAEAMPEF42C21AA
- Heating Element: Select A Heat Kit Option
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- 3.5 ton - best for spaces between 1700- 2100 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.
As low as $3,825.00
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MrCool Signature 3.5 Ton Central Heat Pump Condenser – 14.3 SEER2, R454B
Model Number
MCAESHS4T4221AA
Dimensions
29.14" W x 29.14" D x 32.875" H
Documents
MCAESHS4T4221AA Specifications
Warranty
10 Year Parts, Limited Lifetime Compressor
MrCool Signature 3.5 Ton Air Handler – Multi-Position, R454B
Model Number
MCAEAMPEF42C21AA
Dimensions
19.625" W x 22" D x 45.75" H
Documents
MCAEAMPEF42C21AA Specifications
Warranty
10 Year Parts, Limited Lifetime Compressor
Heat Kit Options
AHRI Number
217513232
MRCOOL 3.5 Ton Heat Pump Condenser – High-Efficiency 14.3 SEER2 Signature Series Unit
Strong 39,000 BTU Heating & Cooling for Larger Residential Spaces
The MRCOOL Signature Series 3.5 Ton heat pump condenser is built for larger homes that require dependable, high-capacity comfort. With 39,000 BTU heating and cooling performance, this unit maintains indoor comfort throughout the year while delivering efficient operation.
Its intelligent defrost system, quiet performance, and durable cabinet construction make it a reliable solution for homeowners. The use of R-454B refrigerant ensures compliance with modern environmental standards while maintaining efficiency.
Features & Benefits
- 3.5 Ton capacity with 39,000 BTU heating and cooling
- Up to 14.3 SEER2 and 7.5 HSPF2 efficiency
- All-season heat pump system
- Intelligent defrost control for winter operation
- Low GWP R-454B refrigerant
- Quiet operation around 65 dB(A)
- Steel louver coil guard for durability
- Compact design for installation flexibility
- Temperature and pressure sensors for protection
- 10-year limited parts warranty with lifetime compressor
MRCOOL 3.5 Ton Multi-Position Air Handler – Signature Series High-Performance Indoor Unit
Enhanced 42,000 BTU Airflow for Larger Residential Comfort Systems
The MRCOOL Signature Series 3.5 Ton air handler provides enhanced airflow performance for larger homes requiring 42,000 BTU capacity. Designed for efficiency and durability, this unit helps maintain consistent indoor comfort across all seasons.
Its ECM motor and multi-position capability allow for flexible installation and improved system performance. Built with high-quality materials, this air handler is engineered for long-term reliability and efficient operation.
Features & Benefits
- 3.5 Ton capacity for 42,000 BTU systems
- Energy-efficient ECM blower motor
- Multi-position installation (upflow, downflow, horizontal)
- R-454B compatible system design
- Copper A-coil with aluminum fins
- Quiet operation around 54 dB(A)
- Durable cabinet construction
- Compact footprint for installation flexibility
- Third-party thermostat compatibility
- 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
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.
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