MRCOOL® 27K 4-Zone DIY® Mini Split System with one (6K + 9k + 9k) Air Handlers & three 16ft QuickConnect® Line Sets- R-454B- DIYM327HPW03D00

Product Description 

Model: DIYM327HPW03D00

The MRCOOL® DIYM327HPW03D00 4-one Mini Split System is a powerful, flexible comfort solution designed for homeowners who want independent room control, high efficiency, and a true DIY® installation—without paying contractor labor costs. Built around the MRCOOL® DIY® 5th Generation 27K multi-zone condenser, this system delivers reliable heating and cooling across four zones with precision control in every room.

Thanks to MRCOOL®’s patented DIY® QuickConnect® technology, installation requires no vacuum pump, no refrigerant handling, and no HVAC license. All line sets arrive factory-sealed and pre-charged with next-generation R-454B refrigerant, improving efficiency while staying compliant with current and future regulations. 

This bundle pairs one 6K BTU air handler and two 9K BTU air handlers, making it ideal for bedrooms, offices, nurseries, and small living spaces where comfort needs vary room to room. The included DIYPRO® cable eliminates the need for conduit, streamlines installation, and ensures clean, reliable communication between indoor and outdoor components. 

Advanced comfort features like Gold Fin® corrosion-resistant coils, Follow Me® temperature sensing, and full smartphone control through the MRCOOL® Smart HVAC Controller® app give you total control over your home’s climate. The system also supports Amazon Alexa and Google Assistant for hands-free operation.

If you’re looking for quiet operation, lower energy bills, and a system you can install yourself, the MRCOOL® DIYM327HPW03D00 is built to deliver long-term comfort and value.

WHAT’S INCLUDED IN THIS COMPLETE DIY® BUNDLE

✔ MRCOOL® DIY® 4-Zone Outdoor Condenser

• Model: DIY-MULTI4-27HP230D-O

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

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

✔ (1) MRCOOL® DIY® 6K BTU Wall-Mounted Air Handler

• Model: DIY-06-HP-WMAH-230D25-O

• Ideal for rooms up to ~200 sq. ft.

✔ (2) MRCOOL® DIY® 9K BTU Wall-Mounted Air Handlers

• Model: DIY-09-HP-WMAH-230D25-O

• Ideal for rooms up to ~350 sq. ft. each

✔ (3) MRCOOL® DIY® 16 ft QuickConnect® Line Sets

• Model: DIY16-1438-O

• Factory pre-charged with R-454B refrigerant

✔ 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 engineered specifically for homeowner installation.

Do I need HVAC tools or refrigerant handling?

No. The QuickConnect® line sets come pre-charged and sealed from the factory.

Can each room be controlled independently?

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

Does it work with smart home systems?

Yes. Compatible 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 help reduce energy consumption and 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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