MRCOOL 55K 6-Zone DIY Mini Split System w/ 9K + 36K Air Handlers Two 16ft Pre-Charged Line Sets DIYM255HPW01D00

MRCOOL 55K 6-Zone DIY Mini Split System w/ 9K + 36K Air Handlers Two 16ft Pre-Charged Line Sets DIYM255HPW01D00

The MRCOOL 55K 6-Zone DIY Mini Split System delivers powerful, flexible whole-home comfort with the convenience of true do-it-yourself installation. Designed around a 55,000 BTU 5th Generation multi-zone condenser, this system efficiently provides both heating and cooling to multiple rooms in your home — with no professional HVAC labor required. Featuring advanced inverter technology and eco-friendly R-454B refrigerant, this model offers quiet, energy-saving performance with smart control capabilities for year-round comfort.

What sets this system apart is its tailored zoning design. Included in the bundle are a 9,000 BTU wall-mounted air handler and a larger 36,000 BTU wall-mounted unit, allowing precise temperature control in rooms of varying sizes. Coupled with two pre-charged 16-ft QuickConnect® line sets and a DIYPRO® communication cable, installation becomes cleaner, faster, and free from vacuum pumps or refrigerant handling — a perfect choice for homeowners seeking an efficient, professional-grade HVAC upgrade without the contractor costs.

Comfort control is effortless with the MRCOOL Smart HVAC Controller®, enabling remote scheduling, temperature settings, and energy monitoring from your smartphone. Voice control compatibility with Amazon Alexa and Google Assistant adds another layer of convenience, making it easier than ever to maintain your ideal indoor climate. Follow Me® temperature sensing and Gold Fin® anti-corrosion protection enhance performance and longevity, even in challenging environments.

Backed by robust warranty coverage — including a 5-year parts warranty, a 7-year compressor warranty, and a limited lifetime replacement warranty with MRCOOL Care registration — this system is built for lasting comfort and reliability. Whether you’re tackling a multi-room home or open-concept living area, this MRCOOL 6-Zone system delivers flexible comfort and smart home convenience in one complete package.

Features

• True DIY® installation with pre-charged QuickConnect® line sets — no vacuum pump or refrigerant handling required.

• Multi-zone HVAC solution supports up to six zones for personalized comfort.

• Includes 9,000 BTU and 36,000 BTU wall-mounted air handlers for varied room sizes.

• MRCOOL Smart HVAC Controller® for app-based temperature, schedule, and energy control.

• Voice control compatibility with Amazon Alexa and Google Assistant.

• Follow Me® temperature sensing ensures consistent comfort.

• Gold Fin® corrosion protection for enhanced durability.

• ENERGY STAR® & AHRI certified for high efficiency and performance.

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® DIY16-1438-O
  16 ft DIY® QuickConnect® Line Set (1/4” x 3/8”)
• ✔ MRCOOL® DIY16-3858-O
  16 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: Can I install this system myself?

Yes. This is a true DIY® system using DIY® QuickConnect® pre-charged line sets, so no HVAC tools or refrigerant handling is required.

Q: Can I add more indoor units later?

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

Q: Does this system work with smart home devices?

Yes. It works 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