MRCOOL® DIY® 5th Gen 2-Zone 18,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged (25ft+25ft) Line Sets (6K+12K) Air Handlers, (230V)-DIYM227HPW00D06

Product Description 

MRCOOL® DIY® 5th Gen 27,000 BTU 2-Zone Mini Split System – 23 SEER2 – 6K + 12K Air Handlers – DIYM227HPW00D06

Product Overview

The MRCOOL® DIYM227HPW00D06 is a high-efficiency 27,000 BTU 2-zone ductless mini split system designed for homeowners who want powerful heating and cooling performance without paying expensive professional installation costs. Built around the advanced MRCOOL® DIY® 5th Generation Multi-Zone platform, this system combines smart technology, energy savings, true DIY installation, and independent room comfort into one complete HVAC solution.

This bundle includes the MRCOOL® DIY-MULTI4-27HP230D-O outdoor condenser paired with one 6,000 BTU wall-mounted air handler and one 12,000 BTU wall-mounted air handler, making it ideal for heating and cooling two different room sizes independently. The 6K air handler is perfect for smaller spaces like bedrooms, nurseries, offices, server rooms, and guest rooms up to 200 square feet, while the 12K air handler is designed for larger areas up to 550 square feet such as garages, workshops, additions, apartments, living rooms, and open-concept spaces.

Unlike traditional mini split systems that require certified HVAC technicians, refrigerant charging, vacuum pumps, and specialty tools, the MRCOOL® DIY® system is engineered specifically for homeowners. The included 25-foot QuickConnect® pre-charged line sets come factory-filled with refrigerant and are ready to install right out of the box — eliminating the need for expensive HVAC labor and simplifying installation dramatically.

Powered by advanced inverter-driven compressor technology and environmentally friendly R-454B refrigerant, this system delivers impressive efficiency ratings up to 23 SEER2 while helping reduce monthly heating and cooling costs. The variable-speed compressor automatically adjusts output based on demand, creating more stable indoor temperatures, quieter operation, and greater long-term efficiency.

The MRCOOL® DIY® 5th Generation system also includes smart home compatibility through the MRCOOL® SmartHVAC app, Amazon Alexa, and Google Assistant, giving you complete control of your comfort directly from your smartphone or voice assistant.

Whether you’re upgrading outdated window units, replacing an aging HVAC system, or adding heating and cooling to spaces without ductwork, the MRCOOL® DIY® 5th Gen Multi-Zone system delivers professional-level comfort with true do-it-yourself simplicity.

What’s Included In This Bundle

Outdoor Condenser

• MRCOOL® DIY-MULTI4-27HP230D-O
• 27,000 BTU 5th Gen Multi-Zone Condenser
• 208/230V

Indoor Air Handlers

• MRCOOL® DIY-06-HP-WMAH-230D25-O
  
  
• 6,000 BTU Wall Mounted Air Handler
• Covers up to 200 sq. ft.
• MRCOOL® DIY-12-HP-WMAH-230D25-O
  
  
• 12,000 BTU Wall Mounted Air Handler
• Covers up to 550 sq. ft.

Included Installation Components

• (2) 25 ft QuickConnect® Pre-Charged Line Sets
• DIYPRO® communication cable
• Wireless remote controls
• Installation hardware and mounting accessories

Smartphone not included

Why Homeowners Choose MRCOOL® DIY®

True DIY Installation

No vacuum pump, refrigerant gauges, or refrigerant handling required. Install it yourself and save thousands on professional HVAC labor.

Independent Room Temperature Control

Each room gets its own air handler and separate temperature control for personalized comfort and improved efficiency.

High-Efficiency Heating & Cooling

With up to 23 SEER2 efficiency and inverter technology, this system helps lower monthly utility bills while maintaining stable indoor comfort.

Reliable Cold Weather Heating

Designed for low ambient heating performance with reliable operation down to -13°F outdoor temperatures and strong heating output around 5°F.

Smart Home Compatible

Built-in WiFi compatibility works with:

• MRCOOL® SmartHVAC App
• Amazon Alexa
• Google Assistant

Eco-Friendly R-454B Refrigerant

Uses next-generation refrigerant with lower global warming potential and compliance with newer HVAC environmental standards.

Quiet Indoor Comfort

Wall-mounted air handlers operate quietly, making them ideal for bedrooms, offices, and living spaces.

System Specifications

System Overview

• Model Number: DIYM227HPW00D06
• System Type: Ductless Mini Split Heat Pump
• Zones: 2
• Total Cooling Capacity: 18,000 BTU
• Zone Configuration: 6K + 12K
• Total Coverage Area: Up to 750 sq. ft.
• Refrigerant Type: R-454B
• Installation Type: DIY QuickConnect®
• Included Line Sets: (2) 25 ft QuickConnect® Line Sets
• Voltage: 208/230V Single Phase

Outdoor Condenser Specifications

MRCOOL® DIY-MULTI4-27HP230D-O

• Cooling Capacity: 26,000 BTU
• Heating Capacity: 26,000 BTU
• Cooling Efficiency: 23 SEER2
• EER2: 12.0
• Heating Efficiency: 9.5 HSPF2-4
• HSPF2-5: 7.0
• Outdoor Sound Level: 61 dB(A)
• Cooling Operating Range: -13°F to 122°F
• Heating Operating Range: -13°F to 75°F
• Minimum Circuit Ampacity: 23A
• Maximum Breaker Size: 25A
• Dimensions: 37.24” W x 16.14” D x 31.89” H
• Weight: 140.2 lbs

Certifications

• ENERGY STAR® Certified
• AHRI Certified
• UL Listed
• ETL Listed

Indoor Air Handler Specifications

MRCOOL® DIY-06-HP-WMAH-230D25-O

• Cooling Capacity: 6,000 BTU
• Heating Capacity: 6,000 BTU
• Coverage Area: 100–200 sq. ft.
• Mount Type: Wall Mounted
• Liquid Line Size: 1/4”
• Suction Line Size: 3/8”
• Dimensions: 31.57” W x 7.44” D x 11.69” H
• Weight: 24.47 lbs

Operating Modes

• Auto Mode
• Cooling Mode
• Heating Mode
• Fan-Only Mode
• Dry/Dehumidification Mode
• Sleep Mode

MRCOOL® DIY-12-HP-WMAH-230D25-O

• Cooling Capacity: 12,000 BTU
• Heating Capacity: 12,000 BTU
• Coverage Area: 351–550 sq. ft.
• Mount Type: Wall Mounted
• Liquid Line Size: 1/4”
• Suction Line Size: 3/8”
• Dimensions: 31.57” W x 7.44” D x 11.69” H
• Weight: 24.47 lbs

Operating Modes

• Auto Mode
• Cooling Mode
• Heating Mode
• Fan-Only Mode
• Dry/Dehumidification Mode
• Sleep Mode

Frequently Asked Questions on the MRCOOL® DIY® 5th Gen 27,000 BTU 2-Zone Mini Split System – 23 SEER2 – 6K + 12K Air Handlers – DIYM227HPW00D06

What’s new with the MRCOOL® DIY® 5th Generation systems?

The 5th Gen MRCOOL® DIY® systems feature:

• Eco-friendly R-454B refrigerant
• Higher SEER2 efficiency ratings
• Improved cold weather heating performance
• Enhanced inverter compressor technology
• Better long-term reliability and durability

Can I install this system myself?

Yes. MRCOOL® DIY® systems are designed specifically for homeowners using QuickConnect® pre-charged line sets that eliminate the need for vacuum pumps or refrigerant charging.

A licensed electrician is recommended for final electrical connections and code compliance.

Does this system provide both heating and cooling?

Yes. This is a heat pump system that provides both air conditioning and heating for year-round comfort.

Does it work in cold weather?

Yes. The system is designed for low ambient heating and can continue heating in outdoor temperatures down to -13°F.

Is WiFi included?

Yes. The system supports smart control through the MRCOOL® SmartHVAC app and works with Amazon Alexa and Google Assistant. As long as you have WiFi

What rooms work best with this system?

Perfect applications include:

• Bedrooms
• Home offices
• Garages
• Workshops
• Tiny homes
• Apartments
• Barndominiums
• Older homes without ductwork
• Additions and bonus rooms

Warranty Coverage

The MRCOOL® DIY® 5th Generation system includes:

• 7-Year Compressor Replacement Warranty
• 5-Year Parts Warranty

• Eligible for the care kit program 

Why Buy From MRCOOL Direct?

MRCOOL Direct is one of America’s most trusted authorized MRCOOL dealers, helping homeowners save money with genuine factory-direct HVAC systems and real customer support.

When You Buy From Us, You Get:

• Authorized MRCOOL dealer protection
• Genuine factory-fresh equipment
• Full manufacturer warranty support
• Fast nationwide shipping
• Expert product assistance
• DIY installation support
• Help with sizing and accessories
• No unauthorized third-party marketplace sellers
• Family-owned customer service that actually cares

We proudly help homeowners across the USA find the right heating and cooling solutions for their homes and businesses.

Need Help Choosing The Right System?

Call our HVAC specialists anytime:

615-553-8118

Friendly support from real people who love talking HVAC.

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