MRCOOL® 27K 4-Zone DIY® Mini Split System (6K + 9k + 12k) Air Handlers & three 16ft QuickConnect® Line Sets- R-454B DIYM327HPW04D00

Product Description 

Model: DIYM327HPW04D00

The MRCOOL® DIYM327HPW04D00 4-Zone Mini Split System is designed for homeowners who want precise room-by-room comfort, professional-grade efficiency, and the freedom of a true DIY® installation—without HVAC labor costs or specialized tools. Powered by the MRCOOL® DIY® 5th Generation 27K multi-zone condenser, this system delivers reliable heating and cooling to four separate spaces using one outdoor unit.

This bundle features a 6K, 9K, and 12K BTU wall-mounted air handler combination, making it ideal for bedrooms, offices, living areas, and bonus rooms that require different comfort levels. Each zone operates independently, allowing customized temperatures and schedules for maximum efficiency and comfort.

Installation is simplified with MRCOOL®’s patented DIY® QuickConnect® technology, which eliminates vacuuming, refrigerant charging, and the need for an HVAC license. Every line set is factory-sealed and pre-charged with R-454B refrigerant, ensuring fast, safe installation while meeting future-focused efficiency standards.

Advanced comfort features like Gold Fin® corrosion-resistant coils, Follow Me® temperature sensing, and full control through the MRCOOL® Smart HVAC Controller® app put total climate control in your hands. The system also integrates seamlessly with Amazon Alexa and Google Assistant for hands-free operation.

If you’re looking for a flexible, energy-efficient, multi-zone solution you can install yourself, the MRCOOL® DIYM327HPW04D00 delivers long-term performance, lower operating costs, and unmatched DIY convenience.

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.

✔ (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 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 DIY® QuickConnect® line sets come factory-sealed and pre-charged.

Can each room be controlled independently?

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

Is this system smart-home compatible?

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

Is R-454B refrigerant future-ready?

Yes. R-454B is more efficient and environmentally responsible than older refrigerants.

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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