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MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-448HP09121212

SKU DIY-BC-448HP09121212
by MRCOOL
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Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette System (DIY-BC-448HP09121212)

Custom Whole-Home Climate Solution with Revolutionary DIY Installation

Transform your entire property with MRCOOL's versatile 4-zone ceiling cassette system – the tailored solution for creating perfectly balanced comfort throughout homes and businesses with varying room sizes. This strategically configured 45,000 BTU package delivers sophisticated multi-zone climate control with an elegant, space-saving design that enhances your interior aesthetic while providing the revolutionary DIY simplicity that has made MRCOOL the preferred choice for discerning property owners.

Imagine maintaining ideal temperatures across your entire property – from smaller bedrooms to medium living spaces and larger primary rooms – all while preserving your interior design with sleek, ceiling-mounted units that virtually disappear overhead. No bulky wall units consuming valuable wall space, no complicated ductwork requiring major renovation – just efficient, whisper-quiet comfort flowing discreetly from above in perfectly sized units for each unique space.

At the heart of this premium system is the powerful 48,000 BTU outdoor condenser featuring impressive 20.5 SEER2 and 8.5 HSPF-5 efficiency ratings, delivering substantial energy savings despite its impressive capacity. The specialized Gold Fin® condenser coating ensures exceptional longevity even in challenging environments, while reliable heating performance down to 5°F guarantees year-round comfort regardless of external conditions.

Strategic Zoning for Mixed Room Sizes

This thoughtfully designed package includes a versatile mix of ceiling cassette air handlers specifically configured for homes and businesses with varying room dimensions:

  • One compact 9,000 BTU unit perfect for smaller spaces up to 375 square feet – ideal for bedrooms, home offices, or utility rooms
  • Three powerful 12,000 BTU units designed for medium to large spaces up to 500 square feet each – perfect for living rooms, master bedrooms, or commercial areas

With this strategic configuration, you can effectively climate-control up to 1,875 square feet of living or working space, making it perfect for mixed-use properties requiring customized temperature zones of different sizes – just like most real-world homes and businesses.

Architectural Integration for Design Excellence

Each ceiling cassette installs discreetly between standard 16" ceiling joists, creating a clean, professional appearance that enhances any interior design. The modern, low-profile units deliver multi-directional airflow for even temperature distribution while maintaining architectural integrity – no obtrusive wall units to disrupt your design vision, just perfect comfort radiating invisibly from above in each space.

Revolutionary DIY Installation Saves Thousands

What truly distinguishes MRCOOL is the groundbreaking pre-charged Quick Connect Line Set technology. These specialized copper lines arrive pre-filled with R-410A refrigerant, eliminating the need for vacuum pumps, specialized equipment, or certified technicians. This innovation means you can confidently install a professional-grade multi-zone system yourself, saving $3,000-$5,000 in professional installation costs while achieving the same premium performance.

The user-friendly design guides you through each step of the process – from mounting the indoor and outdoor units to connecting the pre-charged lines using simple hand tools. Within a weekend, you'll have implemented a sophisticated climate solution that would typically require significant professional labor, scheduling delays, and premium costs.

Complete Control at Your Fingertips

Take command of your environment with the intuitive SmartHVAC app, allowing you to manage temperatures in each zone independently from anywhere using your smartphone or tablet. Create personalized comfort schedules, adjust settings remotely, and monitor performance – all from a simple, user-friendly interface that puts complete control in your hands whether you're home or away.

Key Features for Exceptional Performance:
  • Customized 4-Zone Design: Perfect for homes or businesses with varying room sizes requiring tailored climate control
  • Superior Energy Efficiency: 20.5 SEER2 and 8.5 HSPF-5 ratings deliver exceptional operating economy despite the substantial capacity
  • Architectural Integration: Low-profile ceiling cassettes preserve your interior design integrity while delivering powerful performance
  • True DIY Installation: Pre-charged Quick Connect line sets enable confident self-installation without specialized tools or certifications
  • Smart Home Compatible: Complete control via smartphone or tablet with the intuitive SmartHVAC app
  • Year-Round Reliability: Consistent heating performance even in temperatures as low as 5°F
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty ensure lasting peace of mind

The MRCOOL DIY 4-Zone system represents the perfect solution for property owners seeking comprehensive climate control without the complexity and expense of traditional HVAC installations. Whether you're enhancing a family home with rooms of various sizes, upgrading a business environment, or improving an investment property, this system delivers sophisticated performance with remarkable value across multiple spaces.

Join thousands of satisfied MRCOOL customers who have discovered the perfect balance of comfort, efficiency, and practical innovation. Take control of both your climate and your budget with the ceiling cassette system that revolutionizes how premium whole-property HVAC is installed and experienced in real-world homes and businesses with varying room dimensions.

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 (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.
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: 4 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 12k + 12k + 12k

  • 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 & 5-year parts warranty

Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette System (DIY-BC-448HP09121212)

Custom Whole-Home Climate Solution with Revolutionary DIY Installation

Transform your entire property with MRCOOL's versatile 4-zone ceiling cassette system – the tailored solution for creating perfectly balanced comfort throughout homes and businesses with varying room sizes. This strategically configured 45,000 BTU package delivers sophisticated multi-zone climate control with an elegant, space-saving design that enhances your interior aesthetic while providing the revolutionary DIY simplicity that has made MRCOOL the preferred choice for discerning property owners.

Imagine maintaining ideal temperatures across your entire property – from smaller bedrooms to medium living spaces and larger primary rooms – all while preserving your interior design with sleek, ceiling-mounted units that virtually disappear overhead. No bulky wall units consuming valuable wall space, no complicated ductwork requiring major renovation – just efficient, whisper-quiet comfort flowing discreetly from above in perfectly sized units for each unique space.

At the heart of this premium system is the powerful 48,000 BTU outdoor condenser featuring impressive 20.5 SEER2 and 8.5 HSPF-5 efficiency ratings, delivering substantial energy savings despite its impressive capacity. The specialized Gold Fin® condenser coating ensures exceptional longevity even in challenging environments, while reliable heating performance down to 5°F guarantees year-round comfort regardless of external conditions.

Strategic Zoning for Mixed Room Sizes

This thoughtfully designed package includes a versatile mix of ceiling cassette air handlers specifically configured for homes and businesses with varying room dimensions:

  • One compact 9,000 BTU unit perfect for smaller spaces up to 375 square feet – ideal for bedrooms, home offices, or utility rooms
  • Three powerful 12,000 BTU units designed for medium to large spaces up to 500 square feet each – perfect for living rooms, master bedrooms, or commercial areas

With this strategic configuration, you can effectively climate-control up to 1,875 square feet of living or working space, making it perfect for mixed-use properties requiring customized temperature zones of different sizes – just like most real-world homes and businesses.

Architectural Integration for Design Excellence

Each ceiling cassette installs discreetly between standard 16" ceiling joists, creating a clean, professional appearance that enhances any interior design. The modern, low-profile units deliver multi-directional airflow for even temperature distribution while maintaining architectural integrity – no obtrusive wall units to disrupt your design vision, just perfect comfort radiating invisibly from above in each space.

Revolutionary DIY Installation Saves Thousands

What truly distinguishes MRCOOL is the groundbreaking pre-charged Quick Connect Line Set technology. These specialized copper lines arrive pre-filled with R-410A refrigerant, eliminating the need for vacuum pumps, specialized equipment, or certified technicians. This innovation means you can confidently install a professional-grade multi-zone system yourself, saving $3,000-$5,000 in professional installation costs while achieving the same premium performance.

The user-friendly design guides you through each step of the process – from mounting the indoor and outdoor units to connecting the pre-charged lines using simple hand tools. Within a weekend, you'll have implemented a sophisticated climate solution that would typically require significant professional labor, scheduling delays, and premium costs.

Complete Control at Your Fingertips

Take command of your environment with the intuitive SmartHVAC app, allowing you to manage temperatures in each zone independently from anywhere using your smartphone or tablet. Create personalized comfort schedules, adjust settings remotely, and monitor performance – all from a simple, user-friendly interface that puts complete control in your hands whether you're home or away.

Key Features for Exceptional Performance:
  • Customized 4-Zone Design: Perfect for homes or businesses with varying room sizes requiring tailored climate control
  • Superior Energy Efficiency: 20.5 SEER2 and 8.5 HSPF-5 ratings deliver exceptional operating economy despite the substantial capacity
  • Architectural Integration: Low-profile ceiling cassettes preserve your interior design integrity while delivering powerful performance
  • True DIY Installation: Pre-charged Quick Connect line sets enable confident self-installation without specialized tools or certifications
  • Smart Home Compatible: Complete control via smartphone or tablet with the intuitive SmartHVAC app
  • Year-Round Reliability: Consistent heating performance even in temperatures as low as 5°F
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty ensure lasting peace of mind

The MRCOOL DIY 4-Zone system represents the perfect solution for property owners seeking comprehensive climate control without the complexity and expense of traditional HVAC installations. Whether you're enhancing a family home with rooms of various sizes, upgrading a business environment, or improving an investment property, this system delivers sophisticated performance with remarkable value across multiple spaces.

Join thousands of satisfied MRCOOL customers who have discovered the perfect balance of comfort, efficiency, and practical innovation. Take control of both your climate and your budget with the ceiling cassette system that revolutionizes how premium whole-property HVAC is installed and experienced in real-world homes and businesses with varying room dimensions.

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 (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.
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

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Frequently Asked Questions about MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-448HP09121212

Most Frequently Asked Questions

Yes, Mr. Cool DIY mini splits are generally considered good—they are popular for their easy self-installation, reliable performance, and energy efficiency, making them a solid choice for homeowners who want to install a mini split themselves.
A MRCOOL mini split typically lasts 10 to 20 years with proper installation and regular maintenance.
Gen 5 MRCOOL mini splits use a more eco-friendly R454B refrigerant, have higher energy efficiency, quieter operation, improved cold-weather performance, and greater rebate eligibility compared to Gen 4

Other Questions

MRCOOL mini splits provide excellent value with easy DIY installation and affordability, but Mitsubishi systems are generally considered superior in long-term reliability, advanced features, and ultra-quiet operation—making Mitsubishi the premium choice, while MRCOOL suits budget-conscious or DIY-focused homeowners
Installing a MRCOOL mini split system typically costs between $3,000 and $10,000, depending on system size, number of zones, and installation complexity. Opting for DIY installation can save you $500 to $2,000 in labor costs

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