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MRCOOL DIY Mini Split - 48,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121224

SKU DIY-B-348HP121224
by MRCOOL
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Description

MRCOOL DIY Mini Split - 48,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121224

Make your HVAC offerings greater with the MRCOOL DIY Mini Split 48,000 BTU 3 Zone system — the ultimate solution for contractors and business owners seeking powerful, efficient, and easy-to-install climate control. Designed to deliver seamless comfort across multiple spaces, this system is perfect for homes, garages, workshops, or commercial environments where precision and reliability matter most. Best of all, it’s engineered for DIY installation, saving you time and labor costs while impressing your clients with cutting-edge technology.

Powerful and Durable Condenser

At its core lies a robust 48,000 BTU condenser, fortified with Gold Fin® coating to resist corrosion and extend system life, even in challenging environments. With a solid 20.5 SEER2 and 8.5 HSPF-5 rating, this unit delivers exceptional energy efficiency, helping your customers reduce utility bills without sacrificing performance. It’s winter-ready too, maintaining reliable heating down to 5°F, so comfort is never compromised when the temperature drops.

Tailored Air Handlers for Every Space

Offer your customers personalized comfort with two versatile air handler options:

  • 12,000 BTU Air Handler: Perfect for medium-sized rooms between 376 and 500 square feet, ideal for bedrooms, offices, or living areas. It features multiple modes — COOL, HEAT, AUTO, DRY, and SLEEP — to adapt to every season and lifestyle.
  • 24,000 BTU Air Handler: Designed for larger spaces from 751 to 1,000 square feet, this handler ensures consistent climate control in expansive rooms like workshops, open-plan living areas, or commercial zones, with the same versatile mode options.

Both units are compact and lightweight, enabling hassle-free mounting and quick installation.

Installation Made Simple

Thanks to MRCOOL’s patented Pre-Charged Quick Connect Line Sets, installation is streamlined and straightforward — no vacuum pumps, refrigerant charging, or specialized tools required. This allows you to complete jobs faster, reduce labor costs, and expand your business capacity without sacrificing quality.

Smart Control for Modern Convenience

The system is fully compatible with the SmartHVAC app, giving your customers the power to control their environment remotely from anywhere. Whether adjusting temperature, switching modes, or setting schedules, the app adds a layer of convenience that today’s tech-savvy clients expect.

Why Choose the MRCOOL DIY Mini Split 48,000 BTU 3 Zone?
  • DIY-friendly installation with patented Pre-Charged Quick Connect Line Sets — no vacuum pumps or refrigerant charging needed
  • Gold Fin® coated condenser for superior corrosion resistance and longevity
  • High energy efficiency (20.5 SEER2 / 8.5 HSPF-5) to lower operating costs
  • Reliable heating performance down to 5°F outdoor temperature
  • Versatile air handlers sized for medium to large rooms with multiple climate modes
  • SmartHVAC app compatibility for remote, easy control
  • Comprehensive 7-year compressor and 5-year parts warranty

With the MRCOOL DIY Mini Split 48,000 BTU 3 Zone system, you’re delivering more than just HVAC equipment — you’re providing your customers with customizable, energy-efficient comfort backed by hassle-free installation and modern smart controls. This system empowers you to grow your business by offering a premium product that meets the demands of today’s discerning clients.

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!

Air Handler (24K BTU)

  • Versatile Climate Control: Switch easily between COOL, HEAT, AUTO, DRY, or SLEEP modes for comfort that meets all seasons and conditions.
  • Perfect Room Coverage: Ideal for spaces ranging from 751 to 1,000 square feet, making it a reliable choice for expansive rooms.
  • Smart Control Anywhere: Manage your system effortlessly using the SmartHVAC app compatibility.
  • Effortless Installation: Lightweight and compact, this design allows a streamlined installation process.
  • Quick Connect System: With the MRCOOL Pre-Charged Quick Connect Line Set, install with ease—no technical expertise required!
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US
Request an Installer

Product Overview

  • Zone / ROOM:

    Zone / ROOM: 3 Zone

  • Air Handler BTU:

    Air Handler BTU: 12k + 12k + 24k

  • Condenser BTU:

    Condenser BTU: 48k

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat): Heating -13°F to 75.2°F & Cooling 5°F to 122°F

  • Warranty

    Warranty 7-year compressor warranty & 5-year parts warranty

Description

MRCOOL DIY Mini Split - 48,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121224

Make your HVAC offerings greater with the MRCOOL DIY Mini Split 48,000 BTU 3 Zone system — the ultimate solution for contractors and business owners seeking powerful, efficient, and easy-to-install climate control. Designed to deliver seamless comfort across multiple spaces, this system is perfect for homes, garages, workshops, or commercial environments where precision and reliability matter most. Best of all, it’s engineered for DIY installation, saving you time and labor costs while impressing your clients with cutting-edge technology.

Powerful and Durable Condenser

At its core lies a robust 48,000 BTU condenser, fortified with Gold Fin® coating to resist corrosion and extend system life, even in challenging environments. With a solid 20.5 SEER2 and 8.5 HSPF-5 rating, this unit delivers exceptional energy efficiency, helping your customers reduce utility bills without sacrificing performance. It’s winter-ready too, maintaining reliable heating down to 5°F, so comfort is never compromised when the temperature drops.

Tailored Air Handlers for Every Space

Offer your customers personalized comfort with two versatile air handler options:

  • 12,000 BTU Air Handler: Perfect for medium-sized rooms between 376 and 500 square feet, ideal for bedrooms, offices, or living areas. It features multiple modes — COOL, HEAT, AUTO, DRY, and SLEEP — to adapt to every season and lifestyle.
  • 24,000 BTU Air Handler: Designed for larger spaces from 751 to 1,000 square feet, this handler ensures consistent climate control in expansive rooms like workshops, open-plan living areas, or commercial zones, with the same versatile mode options.

Both units are compact and lightweight, enabling hassle-free mounting and quick installation.

Installation Made Simple

Thanks to MRCOOL’s patented Pre-Charged Quick Connect Line Sets, installation is streamlined and straightforward — no vacuum pumps, refrigerant charging, or specialized tools required. This allows you to complete jobs faster, reduce labor costs, and expand your business capacity without sacrificing quality.

Smart Control for Modern Convenience

The system is fully compatible with the SmartHVAC app, giving your customers the power to control their environment remotely from anywhere. Whether adjusting temperature, switching modes, or setting schedules, the app adds a layer of convenience that today’s tech-savvy clients expect.

Why Choose the MRCOOL DIY Mini Split 48,000 BTU 3 Zone?
  • DIY-friendly installation with patented Pre-Charged Quick Connect Line Sets — no vacuum pumps or refrigerant charging needed
  • Gold Fin® coated condenser for superior corrosion resistance and longevity
  • High energy efficiency (20.5 SEER2 / 8.5 HSPF-5) to lower operating costs
  • Reliable heating performance down to 5°F outdoor temperature
  • Versatile air handlers sized for medium to large rooms with multiple climate modes
  • SmartHVAC app compatibility for remote, easy control
  • Comprehensive 7-year compressor and 5-year parts warranty

With the MRCOOL DIY Mini Split 48,000 BTU 3 Zone system, you’re delivering more than just HVAC equipment — you’re providing your customers with customizable, energy-efficient comfort backed by hassle-free installation and modern smart controls. This system empowers you to grow your business by offering a premium product that meets the demands of today’s discerning clients.

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!

Air Handler (24K BTU)

  • Versatile Climate Control: Switch easily between COOL, HEAT, AUTO, DRY, or SLEEP modes for comfort that meets all seasons and conditions.
  • Perfect Room Coverage: Ideal for spaces ranging from 751 to 1,000 square feet, making it a reliable choice for expansive rooms.
  • Smart Control Anywhere: Manage your system effortlessly using the SmartHVAC app compatibility.
  • Effortless Installation: Lightweight and compact, this design allows a streamlined installation process.
  • Quick Connect System: With the MRCOOL Pre-Charged Quick Connect Line Set, install with ease—no technical expertise required!
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US

Commercial HVAC PROS!

Unlock Installer Benefits Now:

  • ✓ Exclusive BULK Pricing
  • ✓ Limited Time Deals
  • ✓ Unmatched Service & Support
  • ✓ Technical support
  • ✓ Extended Warranty & Maintenance
"Their technical expertise in commercial HVAC systems is outstanding. From equipment selection to installation support, they provided everything we needed. The bulk pricing saved us thousands on our multi-building project, and their 24/7 technical support kept us running smoothly."
- Marcus R., HVAC Project Manager, 06/24

You'll hear from us during business hours

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Get Connected with Certified HVAC Installers:

  • ✓ Pre-Vetted, Licensed & Insured Installers
  • ✓ 2-3 Local Options in Your Area
  • ✓ Specialists in Your Equipment Type
  • ✓ Competitive, Transparent Pricing
  • ✓ Fast Response - Within 24 Hours

How it works:

1. Fill out the form below with your project details
2. We'll match you with 2-3 qualified installers in your area
3. Installers contact you directly with quotes and availability
4. You choose the best fit for your project

"I bought a heat pump online but wasn't sure about installation. HVAC Hive connected me with three local contractors within hours. I chose one based on reviews and pricing - he installed it perfectly the next week. Made the whole process so much easier!"
- Jennifer M., Homeowner, Phoenix AZ

✓ No obligation quotes | ✓ All installers background checked | ✓ Free service - you only pay the installer

We'll connect you with installers within 48 hours during business days

Frequently Asked Questions about MRCOOL DIY Mini Split - 48,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121224

Most Frequently Asked Questions

Yes, Mr. Cool DIY mini splits are well-regarded for their easy installation, reliable performance, and energy efficiency, making them a popular choice for homeowners interested in a do-it-yourself HVAC solution.
A 48,000 BTU mini-split can typically cool between 2,000 and 2,500 square feet, depending on insulation, ceiling height, and climate
A MRCOOL mini-split typically lasts 10 to 20 years with proper installation and regular maintenance

Other Questions

Installing a MRCOOL mini-split system typically costs between $3,000 and $10,000, depending on system size, number of zones, and installation complexity. Choosing DIY installation can save you $500 to $2,000 in labor costs
You should expect to pay between $3,000 and $10,000 to have a mini split installed, depending on factors like system size, number of zones, installation complexity, and local labor rates.

Reviews

Express Free Shipping

Process orders within 1-2 days

Stress Free Returns

Get Covered for (730 days) Returns

Premum Quality

Top Tier Products, Even Better Customer Care

5 Year Warranty

We Believe In Our Products & Our Team