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MRCOOL DIY Mini Split - 33,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM336HPC03C74

SKU DIYM336HPC03C74
by MRCOOL
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Description

MRCOOL DIY Mini Split - 33,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM336HPC03C74

Step into advanced comfort with the MRCOOL DIY Mini Split 33,000 BTU 3 Zone Ceiling Cassette system — a highly efficient, versatile, and easy-to-install HVAC solution designed for business owners, contractors, and HVAC professionals who want multi-zone climate control without the need for professional installation. This 4th generation system is trusted by thousands and engineered for DIY convenience.

Customized Comfort Across Three Zones

Provide your clients with precise control over three distinct zones using one 9,000 BTU and two 12,000 BTU OuttaSight Ceiling Cassette air handlers. These units fit neatly between 16” ceiling joists, creating a clean, low-profile look ideal for rooms ranging from 180 to 500 square feet. This setup is perfect for homes, garages, workshops, or other spaces needing flexible, ductless climate control.

Superior Efficiency and Durability

Enjoy significant energy savings with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating. The Gold Fin® coated condenser protects against corrosion, especially in coastal environments. The system reliably heats even at extreme outdoor temperatures as low as -13°F, ensuring year-round comfort.

Effortless DIY Installation

MRCOOL’s patented Pre-Charged Quick Connect Line Sets make installation straightforward, requiring no vacuuming or special tools. These line sets come pre-filled with R-410A refrigerant, enabling fast, hassle-free setup. The included coupler kit allows you to extend line sets easily for larger or uniquely configured spaces, saving on technician fees and installation costs.

Smart Control Anywhere

Clients can easily manage their system remotely via the SmartHVAC app, adjusting temperature, modes, and schedules from anywhere for ultimate convenience.

Key Features
  • Pre-Charged Quick Connect Line Sets: Tool-free, fast installation saving time and money.
  • Three-Zone Flexibility: Independent control for personalized comfort across multiple rooms.
  • Compact Ceiling Cassette Design: Fits discreetly within ceiling joists for a modern appearance.
  • Durable and Efficient: Gold Fin® coating and high SEER2/HSPF ratings for lasting performance.
  • Reliable Warranty: 7-year compressor and 5-year parts warranty.
  • SmartHVAC App: Remote control for convenience and flexibility.

The MRCOOL DIY Mini Split 33,000 BTU 3 Zone Ceiling Cassette system with 50 ft. install kit offers a professional-grade, energy-efficient, and easy-to-install multi-zone HVAC solution. Perfect for delivering comfort, efficiency, and user-friendly control with DIY installation simplicity.

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.

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.
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 Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM336HPC03C74

Step into advanced comfort with the MRCOOL DIY Mini Split 33,000 BTU 3 Zone Ceiling Cassette system — a highly efficient, versatile, and easy-to-install HVAC solution designed for business owners, contractors, and HVAC professionals who want multi-zone climate control without the need for professional installation. This 4th generation system is trusted by thousands and engineered for DIY convenience.

Customized Comfort Across Three Zones

Provide your clients with precise control over three distinct zones using one 9,000 BTU and two 12,000 BTU OuttaSight Ceiling Cassette air handlers. These units fit neatly between 16” ceiling joists, creating a clean, low-profile look ideal for rooms ranging from 180 to 500 square feet. This setup is perfect for homes, garages, workshops, or other spaces needing flexible, ductless climate control.

Superior Efficiency and Durability

Enjoy significant energy savings with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating. The Gold Fin® coated condenser protects against corrosion, especially in coastal environments. The system reliably heats even at extreme outdoor temperatures as low as -13°F, ensuring year-round comfort.

Effortless DIY Installation

MRCOOL’s patented Pre-Charged Quick Connect Line Sets make installation straightforward, requiring no vacuuming or special tools. These line sets come pre-filled with R-410A refrigerant, enabling fast, hassle-free setup. The included coupler kit allows you to extend line sets easily for larger or uniquely configured spaces, saving on technician fees and installation costs.

Smart Control Anywhere

Clients can easily manage their system remotely via the SmartHVAC app, adjusting temperature, modes, and schedules from anywhere for ultimate convenience.

Key Features
  • Pre-Charged Quick Connect Line Sets: Tool-free, fast installation saving time and money.
  • Three-Zone Flexibility: Independent control for personalized comfort across multiple rooms.
  • Compact Ceiling Cassette Design: Fits discreetly within ceiling joists for a modern appearance.
  • Durable and Efficient: Gold Fin® coating and high SEER2/HSPF ratings for lasting performance.
  • Reliable Warranty: 7-year compressor and 5-year parts warranty.
  • SmartHVAC App: Remote control for convenience and flexibility.

The MRCOOL DIY Mini Split 33,000 BTU 3 Zone Ceiling Cassette system with 50 ft. install kit offers a professional-grade, energy-efficient, and easy-to-install multi-zone HVAC solution. Perfect for delivering comfort, efficiency, and user-friendly control with DIY installation simplicity.

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.

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.
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 - 33,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM336HPC03C74

Most Frequently Asked Questions

Many homeowners appreciate Mr. Cool DIY mini splits for their simple setup, effective heating and cooling, and the ability to save on professional installation costs.
A MRCOOL mini-split typically lasts 10 to 20 years with proper installation and regular maintenance
Installing a MRCOOL mini split system usually costs anywhere from $3,000 to $10,000, depending on factors like the size of the unit, how many zones you need, and the complexity of the setup, and you can often cut $500 to $2,000 off the total by handling the installation yourself.

Other Questions

On average, running a mini split costs between $30 and $80 per month, depending on factors such as unit size, daily usage, electricity rates, and climate
Yes, leaving your mini split on continuously at a steady temperature in summer can be more energy-efficient because its inverter technology adjusts cooling output smoothly, preventing energy spikes from frequent on/off cycling; however, turning it off when away for long periods can save energy.

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