MRCOOL® 27K 4-Zone DIY® Mini Split System (6K + 9k + 12k) Air Handlers & two 25ft + 50ft QuickConnect® Line Sets- R-454B- DIYM327HPW04D23

Product Description 

Model: DIYM327HPW04D23

The MRCOOL® DIYM327HPW04D23 4-Zone Mini Split System is designed for homeowners who want full-home comfort flexibility with a true do-it-yourself installation. Built around the MRCOOL® DIY® 5th Generation 27,000 BTU multi-zone condenser, this system delivers reliable, energy-efficient heating and cooling across four independently controlled zones, making it ideal for mixed-size rooms, additions, and multi-room layouts.

This bundle combines a 6K, 9K, and 12K BTU wall-mounted air handler configuration, allowing each space to maintain its own temperature without over-conditioning unused areas. Whether it’s a bedroom, office, nursery, or bonus room, each zone operates independently for precise comfort and improved efficiency.

Installation is simplified using MRCOOL® DIY® QuickConnect® technology, eliminating vacuum pumps, refrigerant charging, or licensed HVAC labor. The system includes two 25-foot QuickConnect® line sets plus one extended 50-foot QuickConnect® line set with integrated DIYPRO® cable, giving you maximum routing flexibility for longer or more complex installs.

Premium features like Gold Fin® corrosion protection, Follow Me® temperature sensing, and smart control through the MRCOOL® Smart HVAC Controller® ensure long-term durability and effortless daily operation. Full voice control via Amazon Alexa and Google Assistant is supported.

If you’re looking for a future-proof, energy-efficient multi-zone system that installs cleanly and performs like a professionally installed setup, the MRCOOL® DIYM327HPW04D23 is built to exceed expectations.

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.

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

• Model: DIY25-1438-O

• Pre-charged with R-454B refrigerant

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

• Model: DIY50-1438C-O

• Extended-length run with integrated communication cable

✔ 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 designed for homeowner installation without special tools.

Do I need to vacuum or charge refrigerant lines?

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

Can each room be controlled independently?

Yes. Each air handler functions as its own zone.

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 meets current and upcoming environmental regulations.

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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