Skip to content

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 50 ft. Install Kit, DIYM227HPC00C04

SKU DIYM227HPC00C04
by MRCOOL
Authorized Dealer Official
100% Authentic Guarantee
In stock, ready to ship

Fast shipping icon FREE EXPRESS SHIPPING: Process orders in 1 business day

Returns icon STRESS FREE RETURNS: 2 Year Returns

VIP icon PREMIUM QUALITY: Top Tier Products, Even Better Customer Care

Warranty icon 5 YEAR WARRANTY: We Believe In Our Products & Our Team

Professional installation icon PROFESSIONAL INSTALLATION: Get connected with certified, licensed installers in your area - Request installer quotes

$6,693.40

Notify me when back in stock

Estimated Shipping Widget will be displayed here!

Sticky Add to Cart Button
Description

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 50 ft. Install Kit, DIYM227HPC00C04

Revolutionize your HVAC projects with the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system — the ultimate solution for contractors, business owners, and HVAC professionals seeking powerful, efficient multi-zone climate control combined with effortless installation. Imagine delivering precise comfort in multiple rooms while cutting down installation time and costs dramatically.

Flexible Multi-Zone Comfort Designed for Any Space

This system includes two sleek ceiling cassette air handlers engineered to fit perfectly between standard 16” ceiling joists, providing a discreet, modern look that enhances any interior. The 9,000 BTU air handler is ideal for smaller rooms between 180 and 375 square feet — perfect for bedrooms, offices, or garages. Complementing it is the 12,000 BTU unit, designed to efficiently heat and cool medium-sized spaces from 376 to 500 square feet. Together, they offer a tailored multi-zone solution that eliminates ductwork and maximizes comfort across your clients’ homes or workspaces.

Installation Simplified to Save You Time and Money

Say goodbye to complicated setups and costly technician fees. MRCOOL’s patented Pre-Charged Quick Connect Line Sets, available in 16 and 50-foot lengths, come pre-filled with R-410A refrigerant, enabling fast, tool-free installation. This innovative design lets you confidently install the system yourself without vacuum pumps or special tools. The result? Faster job completion, lower labor costs, and higher profits — all while delivering top-tier comfort solutions your clients will appreciate.

Durable, Efficient, and Built for Year-Round Performance

At the core of this system is a powerful 27,000 BTU condenser featuring MRCOOL’s Gold Fin® coating, engineered to resist corrosion even in harsh coastal environments. With an impressive 22 SEER2 cooling efficiency and an 8.2 HSPF-5 heating rating, this unit delivers significant energy savings without sacrificing performance. It reliably heats in extreme cold down to -13°F, ensuring comfort no matter the season. Plus, it’s backed by a 7-year compressor warranty and a 5-year parts warranty for long-lasting peace of mind.

Smart Control for Ultimate Convenience

Your clients will love managing their indoor climate remotely via the SmartHVAC app. Whether adjusting temperatures on the go or setting customized schedules, this feature adds modern convenience that makes your installations stand out.

Why Choose the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette?
  • Two ceiling cassette air handlers (9K & 12K BTU) for adaptable multi-zone comfort
  • Corrosion-resistant 27,000 BTU Gold Fin® coated condenser built to last
  • Energy-efficient 22 SEER2 cooling and 8.2 HSPF-5 heating ratings
  • Pre-Charged Quick Connect 16 and 50 ft. line sets for fast, tool-free installation
  • Reliable heating down to -13°F for year-round operation
  • SmartHVAC app for remote, convenient control
  • 7-year compressor and 5-year parts warranty for confidence

With the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system, you’re not just installing HVAC equipment — you’re delivering a premium comfort experience that combines cutting-edge technology, effortless installation, and lasting reliability. Elevate your business and exceed your clients’ expectations with a system designed for professionals who demand the best.

Condenser (27K BTU)

  • Innovative Installation: Get ready for an unparalleled installation experience with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, empowering you to install without needing a technician!
  • Durability Redefined: Protect against corrosion with the robust Gold Fin® condenser coating, specially designed for coastal areas.
  • Impressive Efficiency: Achieve incredible energy savings with a 22 SEER2 and 8.2 HSPF-5 rating.
  • Year-Round Performance: Enjoy reliable heating even in extreme cold, down to -13°F.
  • Peace of Mind: 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.

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: 2 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 12k

  • Condenser BTU:

    Condenser BTU: 27k

  • 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 - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 50 ft. Install Kit, DIYM227HPC00C04

Revolutionize your HVAC projects with the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system — the ultimate solution for contractors, business owners, and HVAC professionals seeking powerful, efficient multi-zone climate control combined with effortless installation. Imagine delivering precise comfort in multiple rooms while cutting down installation time and costs dramatically.

Flexible Multi-Zone Comfort Designed for Any Space

This system includes two sleek ceiling cassette air handlers engineered to fit perfectly between standard 16” ceiling joists, providing a discreet, modern look that enhances any interior. The 9,000 BTU air handler is ideal for smaller rooms between 180 and 375 square feet — perfect for bedrooms, offices, or garages. Complementing it is the 12,000 BTU unit, designed to efficiently heat and cool medium-sized spaces from 376 to 500 square feet. Together, they offer a tailored multi-zone solution that eliminates ductwork and maximizes comfort across your clients’ homes or workspaces.

Installation Simplified to Save You Time and Money

Say goodbye to complicated setups and costly technician fees. MRCOOL’s patented Pre-Charged Quick Connect Line Sets, available in 16 and 50-foot lengths, come pre-filled with R-410A refrigerant, enabling fast, tool-free installation. This innovative design lets you confidently install the system yourself without vacuum pumps or special tools. The result? Faster job completion, lower labor costs, and higher profits — all while delivering top-tier comfort solutions your clients will appreciate.

Durable, Efficient, and Built for Year-Round Performance

At the core of this system is a powerful 27,000 BTU condenser featuring MRCOOL’s Gold Fin® coating, engineered to resist corrosion even in harsh coastal environments. With an impressive 22 SEER2 cooling efficiency and an 8.2 HSPF-5 heating rating, this unit delivers significant energy savings without sacrificing performance. It reliably heats in extreme cold down to -13°F, ensuring comfort no matter the season. Plus, it’s backed by a 7-year compressor warranty and a 5-year parts warranty for long-lasting peace of mind.

Smart Control for Ultimate Convenience

Your clients will love managing their indoor climate remotely via the SmartHVAC app. Whether adjusting temperatures on the go or setting customized schedules, this feature adds modern convenience that makes your installations stand out.

Why Choose the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette?
  • Two ceiling cassette air handlers (9K & 12K BTU) for adaptable multi-zone comfort
  • Corrosion-resistant 27,000 BTU Gold Fin® coated condenser built to last
  • Energy-efficient 22 SEER2 cooling and 8.2 HSPF-5 heating ratings
  • Pre-Charged Quick Connect 16 and 50 ft. line sets for fast, tool-free installation
  • Reliable heating down to -13°F for year-round operation
  • SmartHVAC app for remote, convenient control
  • 7-year compressor and 5-year parts warranty for confidence

With the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system, you’re not just installing HVAC equipment — you’re delivering a premium comfort experience that combines cutting-edge technology, effortless installation, and lasting reliability. Elevate your business and exceed your clients’ expectations with a system designed for professionals who demand the best.

Condenser (27K BTU)

  • Innovative Installation: Get ready for an unparalleled installation experience with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, empowering you to install without needing a technician!
  • Durability Redefined: Protect against corrosion with the robust Gold Fin® condenser coating, specially designed for coastal areas.
  • Impressive Efficiency: Achieve incredible energy savings with a 22 SEER2 and 8.2 HSPF-5 rating.
  • Year-Round Performance: Enjoy reliable heating even in extreme cold, down to -13°F.
  • Peace of Mind: 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.

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

You'll hear from us during business hours

Request an Installer

Need Professional Installation?

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 - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 50 ft. Install Kit, DIYM227HPC00C04

Most Frequently Asked Questions

Yes, Mr. Cool DIY mini splits are considered good for their user-friendly installation, solid energy efficiency, and reliable heating and cooling performance in residential settings.
A MRCOOL mini split typically lasts between 12 to 15 years with proper maintenance and regular servicing.
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

Other Questions

Yes, while MRCOOL DIY mini splits are designed for easy installation, you’ll usually need a licensed electrician to handle the electrical wiring and connect the unit safely to your home’s power supply to meet local codes and ensure safety.
Yes, mini splits are worth it because they offer efficient, flexible, and zoned heating and cooling without ductwork, leading to energy savings, quieter operation, and easier installation—especially ideal for homes without existing ducts or for targeted room-by-room climate control.

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