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MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-448HP09090918

SKU DIY-BC-448HP09090918
by MRCOOL
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Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump (DIY-BC-448HP09090918)

Elevate your HVAC offerings with the MRCOOL DIY 4th Generation Mini Split, a game-changing solution designed for contractors and business owners who demand efficiency, flexibility, and ease of installation. This 45,000 BTU multi-zone ductless system delivers superior comfort across multiple rooms—perfect for homes, garages, workshops, and commercial spaces—while empowering you to complete installations quickly and confidently without specialized tools or professional help.

Simplify Installation with Innovative Technology

Imagine slashing installation time and labor costs with MRCOOL’s patented Pre-Charged Quick Connect Line Sets. This breakthrough technology allows you to connect refrigerant lines without vacuum pumps or special equipment, making setup straightforward and hassle-free. The DIY-friendly design means you can handle more jobs faster, increasing your business capacity and customer satisfaction.

Robust, Efficient Cooling and Heating

The 45,000 BTU condenser offers outstanding energy efficiency with a 20.5 SEER2 cooling rating and an 8.5 HSPF-5 heating rating, ensuring your customers enjoy consistent comfort and lower utility bills year-round. Its Gold Fin® coating provides durable protection against corrosion and wear, while the system reliably delivers heat even when outdoor temperatures drop as low as 5°F. Backed by a 7-year compressor warranty and 5-year parts warranty, this unit is built to last and perform.

Sleek Ceiling Cassette Air Handlers for Multi-Zone Comfort

This system includes multiple ceiling cassette air handlers designed to fit neatly between standard 16” ceiling joists, combining discreet aesthetics with powerful performance:

  • 9,000 BTU Unit: Ideal for smaller spaces between 180 and 375 sq. ft., such as bedrooms or offices
  • 18,000 BTU Unit: Perfectly suited for larger areas from 501 to 750 sq. ft., including spacious living rooms or commercial zones

Each air handler integrates seamlessly with the DIY 4th Gen multi-zone system, eliminating the need for ductwork and allowing precise temperature control in up to four zones.

Smart Control Anytime, Anywhere

Provide your customers with the convenience of the SmartHVAC app, enabling full control over their system from their smartphone or tablet. Whether adjusting temperatures, setting schedules, or monitoring usage, this app delivers effortless comfort management from virtually anywhere.

Why Choose the MRCOOL DIY Mini Split?
  • Fast, DIY Installation: Pre-charged quick connect lines reduce setup time and complexity
  • Multi-Zone Flexibility: Customize comfort across four zones without ductwork
  • Energy Efficient: High SEER and HSPF ratings translate to significant energy savings
  • Discreet Ceiling Design: Fits between joists for a clean, low-profile look
  • Comprehensive Warranty: 7 years on the compressor and 5 years on parts provide peace of mind
Deliver Superior Comfort and Value

With the MRCOOL DIY 45,000 BTU 4 Zone Mini Split, you’re offering more than just HVAC equipment—you’re providing a smart, adaptable comfort solution your customers will love. Envision their satisfaction as they enjoy whisper-quiet, energy-efficient heating and cooling tailored to every zone, installed quickly and easily. This system is your key to growing your business by delivering future-ready, hassle-free comfort that meets the evolving needs of modern living and working spaces.

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 (18K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
  • Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
  • Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
  • Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
  • Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools 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: 4 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 9k + 9k + 18k

  • 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 Ductless Air Conditioner and Heat Pump (DIY-BC-448HP09090918)

Elevate your HVAC offerings with the MRCOOL DIY 4th Generation Mini Split, a game-changing solution designed for contractors and business owners who demand efficiency, flexibility, and ease of installation. This 45,000 BTU multi-zone ductless system delivers superior comfort across multiple rooms—perfect for homes, garages, workshops, and commercial spaces—while empowering you to complete installations quickly and confidently without specialized tools or professional help.

Simplify Installation with Innovative Technology

Imagine slashing installation time and labor costs with MRCOOL’s patented Pre-Charged Quick Connect Line Sets. This breakthrough technology allows you to connect refrigerant lines without vacuum pumps or special equipment, making setup straightforward and hassle-free. The DIY-friendly design means you can handle more jobs faster, increasing your business capacity and customer satisfaction.

Robust, Efficient Cooling and Heating

The 45,000 BTU condenser offers outstanding energy efficiency with a 20.5 SEER2 cooling rating and an 8.5 HSPF-5 heating rating, ensuring your customers enjoy consistent comfort and lower utility bills year-round. Its Gold Fin® coating provides durable protection against corrosion and wear, while the system reliably delivers heat even when outdoor temperatures drop as low as 5°F. Backed by a 7-year compressor warranty and 5-year parts warranty, this unit is built to last and perform.

Sleek Ceiling Cassette Air Handlers for Multi-Zone Comfort

This system includes multiple ceiling cassette air handlers designed to fit neatly between standard 16” ceiling joists, combining discreet aesthetics with powerful performance:

  • 9,000 BTU Unit: Ideal for smaller spaces between 180 and 375 sq. ft., such as bedrooms or offices
  • 18,000 BTU Unit: Perfectly suited for larger areas from 501 to 750 sq. ft., including spacious living rooms or commercial zones

Each air handler integrates seamlessly with the DIY 4th Gen multi-zone system, eliminating the need for ductwork and allowing precise temperature control in up to four zones.

Smart Control Anytime, Anywhere

Provide your customers with the convenience of the SmartHVAC app, enabling full control over their system from their smartphone or tablet. Whether adjusting temperatures, setting schedules, or monitoring usage, this app delivers effortless comfort management from virtually anywhere.

Why Choose the MRCOOL DIY Mini Split?
  • Fast, DIY Installation: Pre-charged quick connect lines reduce setup time and complexity
  • Multi-Zone Flexibility: Customize comfort across four zones without ductwork
  • Energy Efficient: High SEER and HSPF ratings translate to significant energy savings
  • Discreet Ceiling Design: Fits between joists for a clean, low-profile look
  • Comprehensive Warranty: 7 years on the compressor and 5 years on parts provide peace of mind
Deliver Superior Comfort and Value

With the MRCOOL DIY 45,000 BTU 4 Zone Mini Split, you’re offering more than just HVAC equipment—you’re providing a smart, adaptable comfort solution your customers will love. Envision their satisfaction as they enjoy whisper-quiet, energy-efficient heating and cooling tailored to every zone, installed quickly and easily. This system is your key to growing your business by delivering future-ready, hassle-free comfort that meets the evolving needs of modern living and working spaces.

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 (18K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
  • Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
  • Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
  • Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
  • Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools 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

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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

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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-448HP09090918

Most Frequently Asked Questions

No, mini splits do not devalue a house; in fact, they can increase home value by providing energy-efficient heating and cooling, especially in homes without existing ductwork or where zoned comfort is desirable.
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 offer great value with easy DIY installation and affordability, but Mitsubishi systems are generally considered superior for long-term reliability, advanced features, and ultra-quiet operation—making Mitsubishi the premium choice, while MRCOOL is ideal for budget-conscious or DIY-focused homeowners
Installing a MRCOOL mini split system typically costs between $3,000 and $10,000, depending on factors like 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