MRCOOL DIY 5th Gen 27,000 BTU 4‑Zone Ductless Mini Split Heat Pump System (6K + 12K Air Handlers with 16 ft & 25 ft QuickConnect Line Sets)

MRCOOL DIY 5th Gen 27,000 BTU 4‑Zone Ductless Mini Split Heat Pump System (6K + 12K Air Handlers with 16 ft & 25 ft QuickConnect Line Sets)

The MRCOOL DIY® 5th Gen 27,000 BTU 4‑Zone Ductless Mini Split Heat Pump System (DIYM327HPW02D06) is engineered to deliver customized comfort across multiple areas of your home or workspace with true DIY simplicity. This system includes four indoor wall‑mounted units — two rated at 6,000 BTU and two at 12,000 BTU — paired with a 27,000 BTU multi‑zone outdoor condenser, offering zoned heating and cooling that can be independently controlled in each space. It’s ideal for living rooms, bedrooms, home offices, bonus spaces, and other multi‑room environments where tailored climate control is important.

Installation is straightforward thanks to MRCOOL’s QuickConnect® technology. The included line sets are factory‑sealed and pre‑charged with R‑454B refrigerant, eliminating the need for vacuum pumps, refrigerant gauges, or costly HVAC tools. With a combination of 16 ft and 25 ft line sets included, this system offers versatile installation options to accommodate varying distances between indoor and outdoor units. Coupled with a DIYPRO® communication cable that simplifies wiring connections, the setup process becomes accessible for homeowners.

This multi‑zone system uses advanced DC inverter technology for smooth, energy‑efficient operation and quieter performance than traditional HVAC systems. Each indoor unit comes with its own wireless remote control, giving you individual control over temperature settings in each zone. Smart home integration adds convenience with remote app control and compatibility with modern voice assistants.

Built for durability and long‑term reliability, the outdoor condenser features corrosion‑resistant construction ideal for a range of weather conditions. Paired with a comprehensive manufacturer warranty, the MRCOOL DIY® 27 K multi‑zone system delivers powerful performance, individualized comfort, and true DIY installation ease.

Features

• Multi‑Zone Comfort: Four independently controlled zones provide personalized climate management

• Balanced Air Handler Mix: Includes two 6,000 BTU and two 12,000 BTU indoor units

• DIY Installation: QuickConnect® line sets are pre‑charged with refrigerant, eliminating vacuuming and professional tools

• Versatile Line Sets: Includes one 16 ft and two 25 ft pre‑charged QuickConnect® line sets

• Eco‑Friendly Refrigerant: Uses R‑454B for improved environmental performance

• Quiet & Efficient Operation: DC inverter technology for smooth temperature control and lower noise

• Wireless Remote Controls: Each indoor unit has its own remote for independent control

• Smart Control Capable: Compatible with remote app control and smart voice assistants

• Durable Outdoor Construction: Corrosion‑resistant design for reliable long‑term operation

• Applications: Wide suitability for residential and light commercial multi‑room HVAC needs

Specifications

• Total System Capacity: 27,000 BTU
• Zones Installed: 3 (Supports up to 4 zones)
• SEER2: Up to 23
• HSPF2-4: Up to 9.9
• Refrigerant: R-454B
• Voltage: 208/230V (Single Phase)
• Max Breaker (Condenser): 25A
• Minimum Circuit Ampacity: 21A
• Inverter-Driven Compressor: Yes
• ENERGY STAR® Certified: Yes
• AHRI Certified: Yes

What’s Included

• ✔ MRCOOL® DIY-MULTI4-27HP230D-O
  27,000 BTU 4-Zone 5th Gen DIY® Multi-Zone Condenser (230V)
• ✔ (2) MRCOOL® DIY-06-HP-WMAH-230D25-O
  6,000 BTU Wall-Mounted Air Handlers (up to ~200 sq ft each)
• ✔ (1) MRCOOL® DIY-12-HP-WMAH-230D25-O
  12,000 BTU Wall-Mounted Air Handler (up to ~550 sq ft)
• ✔ (1) MRCOOL® DIY16-1438-O
  16 ft DIY® QuickConnect® Line Set (1/4” x 3/8”)
• ✔ (2) MRCOOL® DIY25-1438-O
  25 ft DIY® QuickConnect® Line Sets (1/4” x 3/8”)
• ✔ DIYPRO® communication cable
• ✔ Wireless remotes for each indoor unit
• ✔ Wall mounting hardware & installation accessories

📌 Smart phone not included

Frequently Asked Questions (FAQ's)

Q: Can I add another indoor unit later?

Yes. The condenser supports up to four indoor air handlers.

Q: Do I need HVAC tools or certification?

No. DIY® QuickConnect® technology eliminates vacuuming and refrigerant handling.

Q: Can each room be controlled independently?

Yes. Each zone is controlled separately through the MRCOOL® Smart HVAC Controller®.

Q: What warranty comes with this system?

• 5-Year Parts Warranty
• 7-Year Compressor Warranty
• Limited Lifetime Replacement Warranty with MRCOOL® Care enrollment