MRCOOL® 27K 4-Zone DIY® Mini Split System (6K + 9k + 12k) Air Handlers & (16ft + 25ft + 35ft) QuickConnect® Line Sets- R-454B DIYM327HPW04D07

Product Description 

Model: DIYM327HPW04D07

The MRCOOL® DIYM327HPW04D07 27K 4-Zone Mini Split System is engineered for homeowners who want maximum comfort, flexibility, and efficiency—without paying for professional HVAC installation. Built around the MRCOOL® DIY® 5th Generation 27,000 BTU multi-zone condenser, this system delivers reliable heating and cooling across multiple rooms while remaining fully DIY-installable.

This configuration combines 6K, 9K, and 12K BTU wall-mounted air handlers, making it ideal for homes with varied room sizes such as bedrooms, offices, nurseries, and living areas. Each zone operates independently, allowing you to customize comfort room-by-room while keeping energy usage under control.

Installation is simplified thanks to MRCOOL® DIY® QuickConnect® technology, which eliminates the need for vacuum pumps, refrigerant handling, or HVAC licensing. The included 16 ft, 25 ft, and 35 ft QuickConnect® line sets arrive factory-sealed and pre-charged with R-454B refrigerant, giving you flexible layout options for longer or more complex installs.

Advanced comfort features like Gold Fin® corrosion-resistant coils, Follow Me® temperature sensing, and full app-based control through the MRCOOL® Smart HVAC Controller® ensure long-term performance and effortless daily operation. You can also connect the system to Amazon Alexa or Google Assistant for hands-free control.

If you want a future-ready, environmentally responsible multi-zone system that installs cleanly and performs like a professional setup, the MRCOOL® DIYM327HPW04D07 is a top-tier solution.

WHAT’S INCLUDED IN THIS COMPLETE DIY® BUNDLE

✔ MRCOOL® DIY® 4-Zone Outdoor Condenser

• Model: DIY-MULTI4-27HP230D-O

• 27,000 BTU | 208/230V | 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.

✔ (1) MRCOOL® DIY® 9K BTU Wall-Mounted Air Handler

• Model: DIY-09-HP-WMAH-230D25-O

• Ideal for rooms up to ~350 sq. ft.

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

• Model: DIY-12-HP-WMAH-230D25-O

• Ideal for rooms up to ~550 sq. ft.

✔ (1) MRCOOL® DIY® 16 ft QuickConnect® Line Set

• Model: DIY16-1438-O

✔ (1) MRCOOL® DIY® 25 ft QuickConnect® Line Set

• Model: DIY25-1438-O

✔ (1) MRCOOL® DIY® 35 ft QuickConnect® Line Set w/ DIYPRO® Cable

• Model: DIY35-1438C-O

✔ 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 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 specifically designed for homeowner installation.

Do I need special HVAC tools or refrigerant handling?

No. DIY® QuickConnect® line sets are factory-sealed and pre-charged.

Can each room be controlled separately?

Yes. Each zone has independent temperature control via remote or app.

Is this system smart-home compatible?

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

Is R-454B refrigerant future-compliant?

Yes. R-454B is a next-generation refrigerant designed to meet new environmental standards.

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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