HOT ! MRCOOL DIY 55,000 BTU 6‑Zone Mini Split (6K + 9K + 24K) 22 SEER2 Ductless Heat Pump System DIYM355HPW01D37

MRCOOL DIY 55,000 BTU 6‑Zone Mini Split (6K + 9K + 24K) 22 SEER2 Ductless Heat Pump System DIYM355HPW01D37

The MRCOOL DIY 55,000 BTU 6‑Zone Mini Split System is a high‑performance, 5th Generation ductless air conditioner and heat pump designed for homeowners seeking customizable, whole‑home comfort without the cost of professional installation. Built around a powerful 55,000 BTU outdoor condenser paired with three indoor air handlers (6K, 9K and 24K BTU), this system delivers efficient and whisper‑quiet heating and cooling to multiple rooms independently — making it perfect for large homes, additions, workshops, or offices.

Installation is dramatically simplified with MRCOOL’s patented DIY® QuickConnect® pre‑charged line sets and the included DIYPRO® communication cable, eliminating the need for refrigerant handling, vacuum pumps, gauges, or HVAC licensing requirements. With a high 22 SEER2 efficiency rating, advanced DC inverter technology, and eco‑friendly R‑454B refrigerant, this system is engineered to lower energy costs while maintaining reliable performance year‑round.

Smart‑home enthusiasts will appreciate compatibility with the MRCOOL Smart HVAC Controller App, as well as voice‑control integration with Amazon Alexa and Google Home. Independent zone control, ultra‑quiet operation, and a durable corrosion‑resistant finish add up to a versatile HVAC solution that brings comfort, convenience, and energy savings to any multi‑room space.

Features

• 55,000 BTU total system capacity


• 6-zone capable condenser (expandable later)


• 22 SEER2 / 10.6 HSPF2-4 efficiency


• DC inverter compressor for variable output and lower energy use


• DIY® QuickConnect® line sets – factory sealed & pre-charged


• DIYPRO® cable eliminates conduit and protects communication wiring


• Gold Fin® anti-corrosion coating (coastal-ready durability)


• Follow Me® temperature sensing for precise comfort


• MRCOOL® Smart HVAC Controller® App


• Alexa® & Google Home® compatible


• Ultra-quiet indoor operation


• True independent zone control

Specifications

What’s Included 

• ✔ MRCOOL® DIY® 6-Zone 55K BTU Outdoor Condenser


• ✔ 6K BTU Wall-Mounted Indoor Air Handler


• ✔ 9K BTU Wall-Mounted Indoor Air Handler


• ✔ 24K BTU Wall-Mounted Indoor Air Handler


• ✔ (2) 25-ft DIY® QuickConnect® Line Sets (1/4 x 3/8)


• ✔ (1) 25-ft DIY® QuickConnect® Line Set (3/8 x 5/8)


• ✔ DIYPRO® communication cable


• ✔ Wireless remotes (per air handler)


• ✔ Installation manuals & accessories

Frequently Asked Questions (FAQ\'s)

Can I install this system myself?

Yes. This is a true DIY® system—no refrigerant handling, vacuuming, or special tools required.

Can I add more zones later?

Yes. The condenser supports up to 6 zones total.

Does this system heat in cold weather?

Yes. Designed for year-round heating and cooling, even in colder climates.

Is this system Energy Star certified?

Yes, the condenser is ENERGY STAR® and AHRI certified.