MRCOOL 55K 6-Zone DIY® Mini Split System w/ 9k + 36K Air Handlers- two 25ft Pre- Charged Line Sets- DIYM255HPW01D07

MRCOOL 55K 6-Zone DIY Mini Split System w/ 9K + 36K Air Handlers Two 25ft Pre-Charged Line Sets DIYM255HPW01D07

Experience whole-home comfort with the MRCOOL 55K 6-Zone DIY Mini Split System, engineered for maximum performance, flexibility, and true DIY installation convenience. Built around a powerful 55,000 BTU 5th Generation multi-zone condenser, this system is designed to heat and cool up to six separate spaces — from bedrooms and living areas to garages and workshops — all with individual temperature control for each zone. The configuration includes both a 9,000 BTU air handler for smaller rooms and a 36,000 BTU air handler for larger spaces, offering balanced comfort tailored to your home’s unique layout.

Installation is dramatically simplified thanks to MRCOOL’s QuickConnect® pre-charged line sets. Factory-sealed with R-454B refrigerant and paired with the DIYPRO® communication cable, you can skip vacuum pumps, refrigerant gauges, and the need for specialized HVAC tools — saving both time and installation costs. Built-in inverter technology ensures efficient operation year-round, delivering quiet, reliable performance whether cooling in summer or heating in winter.

Once installed, take full control of your environment with the MRCOOL Smart HVAC Controller. Adjust temperatures, set schedules, and monitor energy use from your smartphone, or use voice commands through Amazon Alexa and Google Assistant. With advanced features like Follow Me® temperature sensing and industry-leading corrosion resistance, this system is a long-term investment in comfort and energy efficiency.

Whether renovating, building new, or replacing an outdated HVAC system, the MRCOOL 55K 6-Zone DIY Mini Split System offers professional-grade performance without professional installation — all backed by robust warranties and support.

Features

• 55,000 BTU multi-zone capacity condenser for up to six zones.

• Includes 9K and 36K wall-mounted air handlers for flexible room coverage.

• DIY QuickConnect® pre-charged line sets eliminate need for vacuum pumps and refrigerant handling.

• DIYPRO® communication cable for simplified wiring without conduit.

• Smart HVAC control via smartphone app with Alexa and Google Assistant integration.

• R-454B environmentally friendly refrigerant.

• Gold Fin® corrosion-resistant coating.

• Whisper-quiet inverter-driven compressor technology.

• Wireless remotes included for each indoor unit.

Specifications

What’s Included 

• ✔ MRCOOL® DIY-MULTI6-55HP230D-O
  55,000 BTU 6-Zone 5th Gen DIY® Multi-Zone Condenser (230V)
• ✔ MRCOOL® DIY-09-HP-WMAH-230D25-O
  9,000 BTU Wall-Mounted Air Handler (up to ~400 sq ft)
• ✔ MRCOOL® DIY-36-HP-WMAH-230D25-O
  36,000 BTU Wall-Mounted Air Handler (up to ~1,550 sq ft)
• ✔ MRCOOL® DIY25-1438-O
  25 ft DIY® QuickConnect® Line Set (1/4” x 3/8”)
• ✔ MRCOOL® DIY25-3858-O
  25 ft DIY® QuickConnect® Line Set (3/8” x 5/8”)
• ✔ DIYPRO® communication cable
• ✔ Wireless remotes for each air handler
• ✔ Wall mounting hardware & installation accessories

Frequently Asked Questions (FAQ's)

Q: Is this a true DIY® system?

Yes. The DIY® QuickConnect® line sets are factory-charged, so no HVAC tools or refrigerant handling are required.

Q: Can I add more indoor units later?

Yes. This condenser supports up to 6 zones total, allowing future expansion.

Q: Does it work with smart home systems?

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

Q: What warranty does this system include?

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