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MRCOOL DIY Mini Split - 48,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPW04C84

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$6,042.00

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MRCOOL DIY Mini Split - 48,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit — Model DIYM448HPW04C84

Provide comprehensive, efficient climate control for larger homes, workshops, or commercial spaces with the MRCOOL 48,000 BTU 4 Zone DIY Mini Split System. Designed for contractors, business owners, and installers seeking powerful multi-zone solutions combined with the convenience of do-it-yourself installation, this system delivers reliable comfort and easy setup—no professional technician required.

Simplify every job with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, which come pre-filled with R-410A refrigerant. This innovative design removes the need for vacuum pumps or refrigerant charging, cutting down installation time and labor costs so you can complete projects efficiently and confidently.

This system includes four indoor air handlers, each with a 12,000 BTU capacity, ideal for medium-sized rooms ranging from 376 to 500 square feet. Whether your clients want to control temperatures in multiple bedrooms, offices, or workspaces, these handlers offer versatile modes—including Cool, Heat, Auto, Dry, and Sleep—to maintain comfort throughout the year.

The outdoor condenser delivers a robust 48,000 BTU capacity with impressive efficiency ratings of 20.5 SEER2 and 8.5 HSPF-5, helping reduce energy costs while providing consistent performance. Its durable Gold Fin® coating protects against corrosion, ensuring longevity even in challenging environments. The system reliably heats spaces when outdoor temperatures drop as low as 5°F, keeping your customers warm during colder months.

Empower your clients with the ability to manage their HVAC system remotely using the SmartHVAC app, compatible with iOS and Android devices. Whether at home or away, they can adjust settings, switch modes, and monitor system performance with ease.

The included 25-foot install kit offers sufficient reach to position the condenser and air handlers optimally. For longer distances, coupler kits can be added to extend line sets, providing adaptability for a wide range of installation scenarios.


  • DIY installation with pre-charged quick connect line sets—no technician needed
  • Four-zone system with four 12,000 BTU air handlers for versatile medium-sized room coverage
  • High efficiency: 20.5 SEER2 and 8.5 HSPF-5 ratings for energy savings
  • Durable Gold Fin® coated condenser protects against corrosion
  • Reliable heating down to 5°F for dependable winter performance
  • SmartHVAC app compatibility for remote control from any location
  • Includes 25 ft. install kit, expandable with coupler kits for longer runs
  • 7-year compressor and 5-year parts warranty for peace of mind

Offer your customers a powerful and flexible multi-zone mini split system that adapts to their unique space requirements while delivering energy-efficient, year-round comfort. The MRCOOL DIY 48,000 BTU 4 Zone Mini Split system makes installation faster and more cost-effective, allowing you to provide premium HVAC solutions with ease and confidence. Perfect for professionals who want to combine quality, flexibility, and convenience in every project.

Condenser (48K BTU)

  • Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
  • Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
  • Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
  • Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
  • Comprehensive Warranty: Benefit from a 7-year compressor warranty and a 5-year parts warranty.

Air Handler (12K BTU)

  • Versatile Climate Control: Enjoy personalized comfort with COOL, HEAT, AUTO, DRY, or SLEEP modes to suit any season or preference.
  • Perfect Room Coverage: Tailored for areas ranging from 376 to 500 square feet, ideal for medium-sized spaces.
  • Smart Control Anywhere: Take advantage of SmartHVAC app compatibility, giving you complete control remotely.
  • Effortless Installation: A compact and lightweight design allows for hassle-free mounting and setup.
  • Quick Connect System: Thanks to the MRCOOL Pre-Charged Quick Connect Line Set, installation is incredibly simple—no professional vacuuming needed!

Line Set

  • Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
  • Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
  • DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
  • Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.

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Frequently Asked Questions About MRCOOL DIY Mini Split - 48,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPW04C84

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Product Overview

  • Zone / ROOM:

    Zone / ROOM:

  • Air Handler BTU:

    Air Handler BTU:

  • Coverage Area:

    Coverage Area:

  • Condenser BTU:

    Condenser BTU:

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat):

  • Warranty

    Warranty

MRCOOL DIY Mini Split - 48,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM448HPW04C84 Reviews