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MRCOOL DIY Mini Split - 33,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP091212

SKU DIY-BC-336HP091212
by MRCOOL
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Description

MRCOOL DIY Mini Split - 33,000 BTU 3 Zone Ceiling Cassette System (DIY-BC-336HP091212)

Premium Triple-Zone Solution for Medium-Sized Living Spaces

Transform your property with MRCOOL's perfectly balanced 3-zone ceiling cassette system – the ideal solution for larger homes with multiple rooms requiring individualized climate control. This thoughtfully engineered package delivers sophisticated comfort 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 homeowners.

Imagine maintaining ideal temperatures in three distinct spaces – one smaller bedroom or office, plus two medium-sized living areas, each with precisely matched cooling and heating capacity for their specific dimensions and usage patterns. 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 system is a high-performance 36,000 BTU outdoor condenser featuring exceptional 21.5 SEER2 and 8.5 HSPF-5 efficiency ratings, delivering superior energy savings while providing precise zone control. The specialized Gold Fin® condenser coating ensures exceptional durability even in coastal environments, while industry-leading heating performance down to -13°F guarantees year-round comfort regardless of extreme weather conditions.

Perfect Balance for Modern Open-Concept Living

This thoughtfully designed package includes a strategic mix of ceiling cassette air handlers specifically configured for contemporary living patterns:

  • One compact 9,000 BTU unit perfect for a standard bedroom or home office up to 375 square feet
  • Two mid-sized 12,000 BTU units designed for living rooms, open kitchens, or medium-sized common areas up to 500 square feet each

With this strategic configuration, you can effectively climate-control up to 1,375 square feet of living space across three distinct zones, making it perfect for modern homes with open floor plans requiring balanced temperature control, family homes with multiple living areas, or small businesses with varied space requirements.

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 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 $2,000-$4,500 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.

Powerfully Sized for Contemporary Open-Concept Homes

This robust system provides the perfect balance of power and efficiency for medium-sized homes with open floor plans and multiple living areas. The total system capacity of 33,000 BTU delivers ample conditioning power for up to 1,375 square feet of living space, with the flexibility to tailor output to each zone's specific requirements. The thoughtful distribution of capacity – with emphasis on medium-sized 12K BTU units for larger common areas – ensures each space receives precisely the right amount of conditioning power without waste or inefficiency.

Industry-Leading Energy Efficiency

With an exceptional 21.5 SEER2 rating, this system stands at the forefront of energy efficiency in its class, delivering outstanding cooling performance while minimizing operational costs. The impressive 8.5 HSPF-5 heating efficiency further enhances year-round energy savings, ensuring your comfort doesn't come at the expense of high utility bills. These industry-leading efficiency ratings make this system an environmentally responsible choice that pays dividends through years of reduced energy consumption.

Superior Zoning Flexibility

The mixed-capacity three-zone design offers unprecedented flexibility for modern living. Each zone operates independently, allowing personalized temperature settings for different living areas, time-of-day usage patterns, or varying comfort preferences. This intelligent approach to climate control ensures efficient operation by delivering cooling and heating only where and when needed, eliminating the energy waste of traditional whole-house systems that condition unoccupied spaces.

Industry-Leading Cold Weather Performance

Unlike standard heat pumps that struggle in frigid conditions, MRCOOL's advanced technology delivers reliable heating performance even when outdoor temperatures plummet to an astonishing -13°F – among the best cold-weather capabilities in the industry. This exceptional performance eliminates the need for expensive backup heating systems in all but the most extreme climate regions, providing true year-round comfort and significant operational savings.

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:
  • Perfect Size Distribution: Strategically balanced with one 9K BTU unit and two 12K BTU units for contemporary open-concept homes with multiple living areas
  • Superior Energy Efficiency: Industry-leading 21.5 SEER2 and 8.5 HSPF-5 ratings deliver exceptional operating economy and reduced utility costs
  • 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
  • Extreme Weather Performance: Reliable heating even in temperatures as low as -13°F – among the best cold-weather performance in its class
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty ensure lasting peace of mind

The MRCOOL DIY 3-Zone system represents the perfect solution for home

Condenser (36K BTU)

  • Innovative Installation: Experience seamless installation with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, ensuring a hassle-free process without needing a technician.
  • Corrosion Resistance: Shield your system from coastal elements with the robust Gold Fin® condenser coating.
  • Energy Efficiency: Save on energy with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating.
  • Extreme Performance: Heat efficiently even when temperatures plunge to -13°F.
  • Reliable Warranty: Enjoy peace of mind with 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: 3 Zone

  • Air Handler BTU:

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

  • Condenser BTU:

    Condenser BTU: 36k

  • 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 - 33,000 BTU 3 Zone Ceiling Cassette System (DIY-BC-336HP091212)

Premium Triple-Zone Solution for Medium-Sized Living Spaces

Transform your property with MRCOOL's perfectly balanced 3-zone ceiling cassette system – the ideal solution for larger homes with multiple rooms requiring individualized climate control. This thoughtfully engineered package delivers sophisticated comfort 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 homeowners.

Imagine maintaining ideal temperatures in three distinct spaces – one smaller bedroom or office, plus two medium-sized living areas, each with precisely matched cooling and heating capacity for their specific dimensions and usage patterns. 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 system is a high-performance 36,000 BTU outdoor condenser featuring exceptional 21.5 SEER2 and 8.5 HSPF-5 efficiency ratings, delivering superior energy savings while providing precise zone control. The specialized Gold Fin® condenser coating ensures exceptional durability even in coastal environments, while industry-leading heating performance down to -13°F guarantees year-round comfort regardless of extreme weather conditions.

Perfect Balance for Modern Open-Concept Living

This thoughtfully designed package includes a strategic mix of ceiling cassette air handlers specifically configured for contemporary living patterns:

  • One compact 9,000 BTU unit perfect for a standard bedroom or home office up to 375 square feet
  • Two mid-sized 12,000 BTU units designed for living rooms, open kitchens, or medium-sized common areas up to 500 square feet each

With this strategic configuration, you can effectively climate-control up to 1,375 square feet of living space across three distinct zones, making it perfect for modern homes with open floor plans requiring balanced temperature control, family homes with multiple living areas, or small businesses with varied space requirements.

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 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 $2,000-$4,500 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.

Powerfully Sized for Contemporary Open-Concept Homes

This robust system provides the perfect balance of power and efficiency for medium-sized homes with open floor plans and multiple living areas. The total system capacity of 33,000 BTU delivers ample conditioning power for up to 1,375 square feet of living space, with the flexibility to tailor output to each zone's specific requirements. The thoughtful distribution of capacity – with emphasis on medium-sized 12K BTU units for larger common areas – ensures each space receives precisely the right amount of conditioning power without waste or inefficiency.

Industry-Leading Energy Efficiency

With an exceptional 21.5 SEER2 rating, this system stands at the forefront of energy efficiency in its class, delivering outstanding cooling performance while minimizing operational costs. The impressive 8.5 HSPF-5 heating efficiency further enhances year-round energy savings, ensuring your comfort doesn't come at the expense of high utility bills. These industry-leading efficiency ratings make this system an environmentally responsible choice that pays dividends through years of reduced energy consumption.

Superior Zoning Flexibility

The mixed-capacity three-zone design offers unprecedented flexibility for modern living. Each zone operates independently, allowing personalized temperature settings for different living areas, time-of-day usage patterns, or varying comfort preferences. This intelligent approach to climate control ensures efficient operation by delivering cooling and heating only where and when needed, eliminating the energy waste of traditional whole-house systems that condition unoccupied spaces.

Industry-Leading Cold Weather Performance

Unlike standard heat pumps that struggle in frigid conditions, MRCOOL's advanced technology delivers reliable heating performance even when outdoor temperatures plummet to an astonishing -13°F – among the best cold-weather capabilities in the industry. This exceptional performance eliminates the need for expensive backup heating systems in all but the most extreme climate regions, providing true year-round comfort and significant operational savings.

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:
  • Perfect Size Distribution: Strategically balanced with one 9K BTU unit and two 12K BTU units for contemporary open-concept homes with multiple living areas
  • Superior Energy Efficiency: Industry-leading 21.5 SEER2 and 8.5 HSPF-5 ratings deliver exceptional operating economy and reduced utility costs
  • 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
  • Extreme Weather Performance: Reliable heating even in temperatures as low as -13°F – among the best cold-weather performance in its class
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty ensure lasting peace of mind

The MRCOOL DIY 3-Zone system represents the perfect solution for home

Condenser (36K BTU)

  • Innovative Installation: Experience seamless installation with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, ensuring a hassle-free process without needing a technician.
  • Corrosion Resistance: Shield your system from coastal elements with the robust Gold Fin® condenser coating.
  • Energy Efficiency: Save on energy with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating.
  • Extreme Performance: Heat efficiently even when temperatures plunge to -13°F.
  • Reliable Warranty: Enjoy peace of mind with 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 - 33,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP091212

Most Frequently Asked Questions

Yes, Mr. Cool DIY mini splits are generally well-regarded for their easy installation, reliable performance, and energy efficiency, making them a solid choice for homeowners looking for a do-it-yourself HVAC solution.
A MRCOOL mini-split typically lasts 10 to 20 years with proper installation and regular maintenance
The cost to install a MRCOOL mini split typically ranges from $3,000 to $10,000, depending on the system size, number of zones, and installation complexity, with DIY installation potentially saving $500 to $2,000 in labor costs

Other Questions

MRCOOL mini splits offer excellent value with easy DIY installation and affordability, but Mitsubishi systems are widely regarded as superior in terms of long-term reliability, advanced features, and ultra-quiet operation—making Mitsubishi the premium choice while MRCOOL is a solid option for budget-conscious or DIY-focused homeowners
Mini splits are expensive to install because they require specialized labor for refrigerant handling and electrical work, precise placement of indoor and outdoor units, potential building modifications, permits, and adherence to local codes, all of which add complexity and time to the installation process.

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Process orders within 1-2 days

Stress Free Returns

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Premum Quality

Top Tier Products, Even Better Customer Care

5 Year Warranty

We Believe In Our Products & Our Team