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Closed Until Monday48,000 BTU / 4 Ton Mini Split Systems
Experience superior heating and cooling capabilities with our 48,000 BTU/ 4 Ton mini split systems. Whether you require a single zone or dual zone setup, these systems provide exceptional comfort and energy efficiency. With the ability to cover up to 2,400 square feet, our 48,000 BTU/ 4 Ton mini splits offer the perfect solution for cooling one larger space or two smaller spaces while maintaining optimal climate control. Explore our collection and discover the ideal cooling solution for your needs.
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SAVE $2,476.9248,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 9 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD / ACIQ-18W-HH-MDWas $7,076.91Special Price $4,599.99 -
SAVE $2,503.8448,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 6 + 24Model: ES-48Z-M6C / ACIQ-06W-HH-MD-2 / ACIQ-24W-HH-MDWas $7,153.83Special Price $4,649.99 -
SAVE -$596.50MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 Dual Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 24Model: DIY-MULTI6-48HP230D / DIY-06-WM / DIY-24-WMSpecial Price $4,650.00 -
SAVE $2,530.7748,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 9 + 24Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD / ACIQ-24W-HH-MDWas $7,230.76Special Price $4,699.99 -
SAVE $2,530.7648,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 12 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-12W-HH-MD / ACIQ-18W-HH-MDWas $7,230.75Special Price $4,699.99 -
SAVE $474.90MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 6 + 9 + 9Model: DIY-MULTI6-48HP / DIY-06-HP-WMAH-230 / DIY-09-HP-WMAH-230-2Was $5,223.90Special Price $4,749.00 -
SAVE $2,584.6148,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 12 + 24Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-12W-HH-MD / ACIQ-24W-HH-MDWas $7,384.60Special Price $4,799.99 -
SAVE $2,584.6148,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 18 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-18W-HH-MD-2Was $7,384.60Special Price $4,799.99 -
SAVE $2,611.5448,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 9 + 9 + 9Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD-3Was $7,461.53Special Price $4,849.99 -
SAVE $2,638.4648,000 BTU ACiQ Standard 24 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 18 + 24Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-18W-HH-MD / ACIQ-24W-HH-MDWas $7,538.45Special Price $4,899.99 - SAVE $2,638.4548,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 9 + 12Model: ES-48Z-M6C / ACIQ-06W-HH-MD-2 / ACIQ-09W-HH-MD / ACIQ-12W-HH-MDWas $7,538.44Special Price $4,899.99
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SAVE $490.60MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 6 + 9 + 12Model: DIY-MULTI6-48HP-230 / DIY-06-WMAH / DIY-09-WMAH / DIY-12-WMAHWas $5,396.60Special Price $4,906.00 - SAVE $2,665.3848,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 9 + 9 + 12Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD-2 / ACIQ-12W-HH-MDWas $7,615.37Special Price $4,949.99
- SAVE $2,665.3748,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD-3 / ACIQ-18W-HH-MDWas $7,615.36Special Price $4,949.99
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SAVE $496.60MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 Dual Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 36Model: DIY-MULTI6-48HP230D / DIY-06-WM / DIY-36-WMWas $5,462.60Special Price $4,966.00 - SAVE $2,692.2948,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 12 + 12Model: ES-48Z-M6C / ACIQ-06W-HH-MD-2 / ACIQ-12W-HH-MD-2Was $7,692.28Special Price $4,999.99
- SAVE $2,692.3048,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 9 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD-2 / ACIQ-09W-HH-MD / ACIQ-18W-HH-MDWas $7,692.29Special Price $4,999.99
- SAVE $2,719.2248,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 9 + 12 + 12Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD / ACIQ-12W-HH-MD-2Was $7,769.21Special Price $5,049.99
- SAVE $2,719.2348,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 9 + 9 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD / ACIQ-09W-HH-MD-2 / ACIQ-18W-HH-MDWas $7,769.22Special Price $5,049.99
- SAVE $2,719.2248,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6 + 24Model: ES-48Z-M6C / ACIQ-06W-HH-MD-3 / ACIQ-24W-HH-MDWas $7,769.21Special Price $5,049.99
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SAVE $505.60MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 4 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 6 + 6 + 6 + 6Model: DIY-MULTI6-48HP / DIY-06-HP-WMAH-230-4Was $5,561.60Special Price $5,056.00 -
SAVE $506.30MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 6 + 12 + 12Model: DIY-MULTI6-48HP / DIY-06-HP-WMAH-230 / DIY-12-HP-WMAH-230-2Was $5,569.30Special Price $5,063.00 -
SAVE $507.30MRCOOL 48,000 BTU DIY 5th Gen 21.8 SEER2 3 Zone Wall Mount Mini Split Heat Pump System - R454B | 230V - 6 + 6 + 18Model: DIY-MULTI6-48HP230D / DIY-06-WM-2 / DIY-18-WMWas $5,580.30Special Price $5,073.00 - SAVE $2,746.1448,000 BTU ACiQ Standard 24 SEER2 4 Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 12 + 18Model: ES-48Z-M6C / ACIQ-06W-HH-MD-2 / ACIQ-12W-HH-MD / ACIQ-18W-HH-MDWas $7,846.13Special Price $5,099.99
48000 BTU mini split air conditioner systems
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A 48,000 BTU mini split system is a ductless heating and cooling system consisting of a single outdoor condenser and one or more indoor air handlers. This type of mini split, also called a 48K system or 4 ton system, is often built as a heat pump that is designed to deliver up to 4 tons of cooling capacity, while also providing heating by transferring heat between indoor and outdoor units. Most modern 4 ton mini split systems include variable-speed inverter technology, which maintains precise and varying temperatures across multiple independent zones without the energy waste associated with traditional central air cycling.
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What spaces are ideal for 48000 BTU mini split systems?
A 4 ton mini split is ideal for large residential or small to medium commercial spaces spanning approximately 2,300 to 2,600 square feet with 8-foot ceilings and standard insulation. This unit is specifically engineered to handle high-load environments where consistent, high-volume airflow across single open areas or multiple partitioned zones is required.
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Whole-Home Residential Layouts: These systems are frequently used in multi-story homes and large single-story or ranch-style residences where ductwork installation is costly, time-consuming, and impractical.
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Commercial Office Suites: A 48K unit is well-suited for professional office environments, allowing for independent temperature control in several individual offices and a shared lobby from a single outdoor condenser.
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Finished Basements and Walk-outs: Large, colder, below-ground-level living spaces like finished basements and walk-out spaces benefit from the high-capacity moisture removal and heating power of a 48,000 BTU system.
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Small Event or Worship Spaces: The high airflow and quiet operation of this system makes it ideal for small community or event centers and even chapels that require rapid cooling during high-occupancy periods.
Environmental factors such as excessive heat from sunlight-facing windows, poor attic insulation, or extreme ambient outdoor temperatures above 115°F can significantly reduce the system's effective cooling capacity. In these conditions, and for a general rule of thumb, it is always best to get a professional heating and cooling load calculation to determine whether additional capacity or supplemental insulation improvements are necessary.
Are 48000 BTU mini split systems energy efficient?
Yes, 48,000 BTU mini split systems are energy-efficient, with inverter-driven models achieving SEER2 ratings up to 24 and reducing energy consumption by up to 30% compared to fixed-speed alternatives. Those built with variable-speed inverters are even more efficient, often reducing energy consumption by up to 30% compared to fixed-speed models. 48K units and their performance efficiencies are commonly ranked using seasonal cooling ranges (SEER2, or Seasonal Energy Efficiency Ratio) and seasonal heating ranges (HSPF2, or Heating Seasonal Performance Factor). On both scales, higher numbers indicate greater efficiency — homeowners who switch from traditional ducted HVAC to a high-efficiency mini split can reduce monthly energy bills by up to 40%. Top-performing 48K mini split systems can achieve SEER2 ratings up to 24+ (in a 14 to 28+ range) and high HSPF2 numbers up to 10.5+ (in a 7.5 to 13.5 range).
How much electricity does a 48000 BTU mini split use?
A 48,000 BTU mini split system consumes between 4,000 and 5,800 watts (W) of electricity when operating at maximum heating or cooling capacity. Because of this power demand, most 4 ton mini splits require a dedicated 208/230V circuit with electrical requirements commonly ranging from 35A to 45A Minimum Circuit Ampacity (MCA) and 40A to 60A Maximum Overcurrent Protection (MOCP), depending on the model. For 48K mini splits with inverter technology, which actively adjusts compressor speed to match heating or cooling demand, estimated monthly operating costs range from $130 to $185.
What power requirements do 48000 BTU mini splits need?
A 4 ton mini split requires a dedicated 208/230V, single-phase, 60Hz electrical circuit to safely power its 48,000 BTU compressor. These high-capacity units need model-specific amperage and breaker configurations to handle startup amperage and continuous operation safely.
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Voltage Requirement: Forty-eight thousand BTU systems operate on a 208/230V power supply, which requires a double-pole breaker and standard residential or light commercial electrical service.
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Minimum Circuit Ampacity (MCA): These systems typically have an MCA of 30 amps to 45 amps, which dictates the minimum wire size (usually 8 AWG or 6 AWG copper) needed to safely handle the continuous current.
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Maximum Overcurrent Protection (MOCP): A 4 ton mini split requires a dedicated circuit breaker sized between 40A and 60A to protect the internal inverter electronics and compressor from electrical surges.
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Communication Wiring: Most 48K systems use 14/4 AWG stranded shielded communication wire between the condenser and indoor units, ensuring each unit operates independently on the shared 208/230V circuit.
Using the wrong breaker size or wire gauge can cause voltage drops that permanently damage the inverter control board and void the manufacturer warranty. Always verify breaker size, wire gauge, and MCA/MOCP ratings directly on the outdoor condenser nameplate before installation.
Can I install a 48000 BTU mini split system?
You can install a 48,000 BTU mini split yourself only if the unit is specifically designed as a DIY system, such as those from Stealth or MRCOOL. Standard 4 ton units require a licensed HVAC professional for legal and safe installation.
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DIY Installation: The primary benefit of a DIY system is avoiding professional labor costs that come with hiring a pro installer. Another benefit is that customers can also self-install DIY units on their own time.Â
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Professional Installation: A licensed HVAC installer is necessary for any 48,000 BTU system that is not designed as DIY. Pressure testing, vacuuming, and refrigerant line charging are critical steps that must be completed by a certified technician during professional installation.
Most local jurisdictions require building and electrical permits for the installation of 48K mini splits for the purpose of safety, considering the hazardous materials and high-voltage electrical work that these systems require.
How much do 48000 BTU mini split systems cost?
A complete 48,000 BTU mini split system generally costs between $3,000 and $11,000+, depending on the number of zones and the complexity of the electrical requirements.
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Equipment Cost: A 48,000 BTU outdoor condenser paired with one or more indoor air handlers typically ranges from $3,000 to $10,000, with premium multi zone models landing at the higher end of that spectrum.Â
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Installation and Labor Cost: Professional installation for a 4 ton system usually costs between $2,500 and $9,000, which covers the vacuuming of lines, refrigerant charging, and the mounting of multiple indoor units.Â
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Operation and Maintenance Cost: Monthly operating costs typically range from $75 to $150 depending on runtime, insulation quality, and utility rates. The number of indoor air handlers, room dimensions, and seasonal climate conditions also affect monthly operating costs. As-needed maintenance fees for single-zone systems typically run between $100 and $200 per visit, while multi zone service can be $300 to $550.
Additional expenses for required permits can add another $100 to $300 to the final project total.
All costs are approximate ranges based on products that are subject to pricing variables, which include, but are not limited to: region of install, location of installation, company labor rates, additional material costs, permit fees, and electrical evaluation and/or hookup.
What indoor unit styles are available for 48000 BTU mini splits?
A 48,000 BTU condenser can usually be paired with 4 to 5 distinct indoor zones (and in some cases, six different zones), depending on the handler sizes and brand. This allows for customized airflow and aesthetic integration across multiple independent zones to meet the specific architectural needs of a home.
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Wall Mount Units: The most common and cost-effective style, wall mount units are mounted high to provide efficient top-down cooling and heating for ample, wide-angle air distribution.
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Ceiling Cassettes: Designed to blend seamlessly into the ceiling while showing only a decorative grille, 48,000 BTU ceiling cassettes deliver 4-way directional airflow for even climate distribution across large, open-concept rooms, like large, open-concept areas.
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Floor Mount Units: These 48K floor mount handlers mimic radiators in that they are installed low on a wall near the ground, and are particularly effective for cooling and heating rooms from the ground up.
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Concealed Duct Units: Able to provide out-of-sight heating and cooling solutions, concealed duct units are mounted while hidden in attics or closets. Concealed air handlers use short duct runs to deliver air through discreet ceiling or wall vents.
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Universal Floor/Ceiling Units: With the ability to be mounted horizontally against the ceiling or vertically against a low wall, universal 48K units provide customized high-volume airflow for large commercial or residential spaces.
Different indoor air handler styles can often be combined on a single 4 ton condenser, depending on the make and model of the unit themselves. The total combined BTU capacity of all indoor units must remain within 100% to 133% of the outdoor condenser's rated capacity.
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FAQs about 48000 BTU mini split systems
For a 48K mini split, selecting a unit at SEER2 20 or above ensures long-term energy savings that typically offset the higher upfront equipment cost within 3 to 5 years. Premium 4 ton units like the ACiQ Extreme series achieve SEER2 ratings up to 23, while standard high-efficiency models typically range between 16 and 18 SEER2.
Yes, these systems that are designed as heat pumps can provide both cooling and heating for year-round climate control. Cooling-only 4 ton mini splits are less common and are best suited for climates where year-round heating is not required.
For a 48K mini split system, an HSPF2 rating between 9.5 and 11 ensures high-efficiency heating performance during the winter months. Premium 4 ton units like the ACiQ Extreme series achieve an HSPF2 of 11, compared to a federal minimum standard of 7.5 HSPF2 for this capacity class.
DIY 48,000 BTU systems are best for homeowners prioritizing lower labor costs, while standard systems offer the widest equipment selection and professional warranty protection.
- Standard 48,000 BTU Systems: A certified technician is required to vacuum, pressure-test, and release refrigerant into a standard 4 ton system during a traditional installation, but standard 48K mini splits are offered most widely to homeowners and business owners.
- DIY 48,000 BTU Systems: DIY models are less common than standard 4 ton units, but they are available to homeowners for self installs. DIY systems should be the only mini splits that undergo DIY installation, as an attempted self-installation of a standard unit would likely invalidate its manufacturer warranty.
Homeowners looking for the ease of allowing professionals to handle all mini split labor would be advised to choose a standard professional 4 ton system install. Those who choose DIY 48K systems avoid professional installation and labor costs.
Yes, a 48,000 BTU mini split is exactly the same as a 4 ton mini split because one ton of cooling capacity equals 12,000 BTUs, making 48,000 BTUs equivalent to 4 tons of cooling or heating.
ACiQ, Mitsubishi, LG, and Daikin are among the top-rated brands for 48,000 BTU mini split systems, with DIY options available from Stealth and MRCOOL for homeowners seeking self-install solutions. These brands are recognized for their high SEER2 ratings and reliable heating performance in outdoor temperatures as low as -13°F to -22°F, depending on the model.
Yes, a 48K system typically lasts between 15 and 20 years when properly maintained and with correct installation. These high-capacity 4 ton units that utilize inverter technology can reduce wear and tear by ramping the compressor speed up and down smoothly rather than relying on the abrupt on/off cycling of fixed-speed compressors.
The vast majority of 48,000 BTU mini split systems from brands like ACiQ, Stealth, and MRCOOL are heat pumps, meaning they transfer heat between indoor and outdoor air to deliver both high-capacity cooling and efficient heating depending on the season. Cooling-only models are also available from Daikin and Mitsubishi as well, but the industry standard for this capacity is a heat pump.
Yes, 48,000 BTU mini split systems can dehumidify effectively, as most modern 4 ton units include a dedicated Dry Mode designed to remove moisture without significantly dropping the room temperature. These systems use their built-in inverter technology to slow the fan speed and reduce coil temperature just enough to condense water vapor, which is then drained away through a condensate line.