MRCOOL® 27K 4-Zone DIY® Mini Split System with two 6K + 12k Air Handlers & two 25ft + 50ft QuickConnect® Line Sets- R-454B- DIYM327HPW02D23

Product Description 

Model: DIYM327HPW02D23

The MRCOOL® DIYM327HPW02D23 4-zone Mini Split System is engineered for homeowners who want room-by-room temperature control, strong efficiency, and a true do-it-yourself installation without sacrificing professional-grade performance. Built around the MRCOOL® DIY® 5th Generation 27K Multi-Zone condenser, this system delivers reliable heating and cooling across four separate zones with independent comfort control.

This bundle uses MRCOOL®’s patented DIY® QuickConnect® technology, allowing installation without vacuum pumps, refrigerant handling, or an HVAC license. Every line set arrives factory-sealed and pre-charged with next-generation R-454B refrigerant, helping improve efficiency while reducing environmental impact and ensuring long-term compliance.

With two 6K BTU air handlers and one 12K BTU air handler, this configuration is ideal for bedrooms, offices, guest rooms, or bonus spaces. The included DIYPRO® cable eliminates the need for conduit, speeds installation, and ensures clean, reliable communication between components.

Premium features like Gold Fin® corrosion-resistant coils, Follow Me® temperature sensing, and full smartphone control through the MRCOOL® Smart HVAC Controller® app give you precise comfort control, ultra-quiet operation, and total convenience. Voice control through Amazon Alexa and Google Assistant is supported right out of the box.

Backed by MRCOOL®’s industry-leading warranty, this system is built for homeowners who want long-term reliability, lower energy costs, and full control — without contractor pricing.

WHAT’S INCLUDED IN THIS COMPLETE DIY® BUNDLE

✔ MRCOOL® DIY® 4-Zone Outdoor Condenser

• Model: DIY-MULTI4-27HP230D-O

• 27,000 BTU | 230V | Inverter Heat Pump

• Max Breaker: 35A | Min Circuit Ampacity: 30.5A

✔ (2) MRCOOL® DIY® 6K BTU Wall-Mounted Air Handlers

• Model: DIY-06-HP-WMAH-230D25-O

• Ideal for rooms up to ~200 sq. ft. each

✔ (1) MRCOOL® DIY® 12K BTU Wall-Mounted Air Handler

• Model: DIY-12-HP-WMAH-230D25-O

• Ideal for rooms up to ~550 sq. ft.

✔ (2) MRCOOL® DIY® 25 ft QuickConnect® Line Sets

• Model: DIY25-1438-O

• Factory pre-charged with R-454B refrigerant

✔ (1) MRCOOL® DIY® 50 ft QuickConnect® Line Set w/ DIYPRO® Cable

• Model: DIY50-1438C-O

• Extended-length line set with integrated communication wire

✔ Wireless remotes for each air handler

✔ DIY® QuickConnect® fittings

✔ Factory-sealed refrigerant system

Smart phone not included

⚙️ ELECTRICAL & SYSTEM SPECIFICATIONS

• Voltage: 208/230V
• Phase: Single Phase
• Zones Supported: Up to 4
• Refrigerant: R-454B
• Condenser Max Fuse / Breaker: 35 Amps
• Condenser Minimum Circuit Ampacity: 30.5 Amps
• Installation: True DIY® — No HVAC license required

❓ FREQUENTLY ASKED QUESTIONS 

Can I install this system myself?

Yes. MRCOOL® DIY® systems are designed specifically for homeowner installation using QuickConnect® technology.

Do I need special HVAC tools or refrigerant handling?

No. The system is factory-sealed and pre-charged.

Can each room be controlled independently?

Yes. Each air handler has its own thermostat and remote.

Is this system compatible with smart home devices?

Yes. Works with the MRCOOL® Smart HVAC Controller® app, Amazon Alexa, and Google Assistant.

Is this system energy efficient?

Absolutely. DC inverter technology and R-454B refrigerant maximize efficiency and lower operating costs.

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

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615-553-8118

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