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MRCOOL  |  SKU: DIYM255HPW03D07
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MRCOOL 55K 6‑Zone DIY Mini Split System w/ 18K + 24K Air Handlers 6‑Zone 55,000 BTU HVAC System DIYM255HPW03D07

$6,434.00 USD $6,934.00

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Description

MRCOOL 55K 6‑Zone DIY Mini Split System w/ 18K + 24K Air Handlers 6‑Zone 55,000 BTU HVAC System DIYM255HPW03D07

The MRCOOL 55K 6‑Zone DIY Mini Split System w/ 18K + 24K Air Handlers is engineered for homeowners who demand flexible, whole‑home comfort without the complexity and cost of professional HVAC installation. Built around MRCOOL’s advanced 5th Generation 55,000 BTU double‑stack condenser, this multi‑zone system delivers powerful heating and cooling performance tailored to varied space sizes — from bedrooms and offices to large open living areas. With a combined 55,000 BTU capacity and support for up to six zones, you get personalized comfort control throughout your home.

What sets this system apart is its true DIY design. The included DIY® QuickConnect® pre‑charged line sets come factory sealed, eliminating the need for vacuum pumps, refrigerant handling, or specialized tools. Communication wiring is simplified with the durable DIYPRO® cable, protecting against weather and pests while reducing installation time. Advanced features like MRCOOL Smart HVAC Control via smartphone, compatibility with Amazon Alexa and Google Assistant, Follow Me® temperature sensing, and Gold Fin® corrosion‑resistant coils make this system a smart and reliable choice for long‑term comfort and efficiency.

Features

  • 55,000 BTU total system capacity with support for up to 6 independent zones

  • Includes (1) 18,000 BTU and (1) 24,000 BTU wall‑mounted air handlers for flexible space coverage

  • DIY® QuickConnect® pre‑charged line sets — no vacuuming or refrigerant tools needed

  • DIYPRO® communication cable — durable and eliminates traditional conduit

  • Smart HVAC Controller® app integration — remote control, schedules, and monitoring

  • Works with Amazon Alexa and Google Assistant for voice‑enabled comfort control

  • Follow Me® temperature sensing for personalized zone comfort

  • Gold Fin® corrosion‑resistant coils for enhanced durability

  • Ultra‑quiet operation for comfortable living spaces

  • ENERGY STAR® and AHRI certified efficiency ratings

  • Backed by 5‑year parts and 7‑year compressor warranty with MRCOOL Care enrollment

Specifications

Specification Details
Brand MRCOOL
Model DIYM255HPW03D07
Total System Capacity 55,000 BTU
Zones Supported Up to 6 zones
Indoor Units Included 18,000 BTU & 24,000 BTU Wall‑Mounted Air Handlers
Line Sets Included Two 25 ft DIY® QuickConnect® Line Sets (1/4” x 1/2” & 3/8” x 5/8”)
Communication Cable DIYPRO® cable included
Refrigerant R‑454B (pre‑charged)
SEER2 Rating 22
HSPF2‑4 10.6
Voltage 208/230 V (Single Phase)
Max Breaker (Condenser) 45 A
Minimum Circuit Ampacity 43 A
Inverter‑Driven Compressor Yes
ENERGY STAR® Certified Yes
AHRI Certified Yes
Warranty 5‑Year Parts, 7‑Year Compressor, Limited Lifetime Replacement (with MRCOOL Care)
Control Compatibility MRCOOL Smart HVAC Controller®, Amazon Alexa, Google Assistant
Installation Type DIY QuickConnect® Factory‑Sealed Lines
Included Accessories Wireless remotes, wall mounting hardware & installation accessories

What’s Included 

  • ✔ MRCOOL® DIY-MULTI6-55HP230D-O
    55,000 BTU 6-Zone 5th Gen DIY® Multi-Zone Double-Stack Condenser (230V)
  • ✔ MRCOOL® DIY-18-HP-WMAH-230D25-O
    18,000 BTU Wall-Mounted Air Handler (up to ~800 sq ft)
  • ✔ MRCOOL® DIY-24-HP-WMAH-230D25-O
    24,000 BTU Wall-Mounted Air Handler (up to ~1,050 sq ft)
  • ✔ MRCOOL® DIY25-1412-O
    25 ft DIY® QuickConnect® Line Set (1/4” x 1/2”)
  • ✔ MRCOOL® DIY25-3858-O
    25 ft DIY® QuickConnect® Line Set (3/8” x 5/8”)
  • ✔ DIYPRO® communication cable
  • ✔ Wireless remotes for each indoor unit
  • ✔ Wall mounting hardware & installation accessories

Frequently Asked Questions (FAQ's)

Q: Is this system really DIY® installable?

Yes. DIY® QuickConnect® line sets are factory-charged, eliminating vacuuming and refrigerant handling.

Q: Can I expand this system later?

Yes. This condenser supports up to six total zones, allowing future indoor unit additions.

Q: Does this system work with smart home devices?

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

Q: What warranty coverage is included?

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

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