MRCOOL DIY 5th Gen 4-Zone 54,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+6K+6K+36K), DIYM455HP06060636 No Vac Quick Connect

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MRCOOL DIY 5th Gen 4-Zone 54,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+6K+6K+36K), DIYM455HP06060636

Name: MRCOOL DIY 5th Gen 4-Zone 54,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+6K+6K+36K), DIYM455HP06060636
Brand: MRCOOL
SKU: DIYM455HP06060636
Price: 8301.00 USD
Availability: InStock

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SKU: DIYM455HP06060636

Price:

$8,301.00

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Estimated delivery: 2–13 business days Order before 2:00 PM ET. Handling takes 1–3 business days and transit 1–10 business days. Tracking is emailed when it ships.

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54,000 BTU Connected Capacity • Compact Triple Plus One Zoning • 6-Zone Capable Condenser

MRCOOL® DIY® 5th Gen 4-Zone Wall Mount Mini Split with Pre-Charged Line Sets (6K+6K+6K+36K)

The MRCOOL® DIY® 5th Generation 54,000 BTU 4-Zone Wall Mount Mini Split pairs a 6-zone capable 55K BTU condenser with three matched 6K wall mount air handlers and one high-capacity 36K unit. Three small rooms round out this system alongside a very large open living area, with headroom to add two more zones later. Ships with 25 ft pre-charged line sets on every zone; longer runs available on request.

System Highlights

Compact Triple Plus One Zoning: Three matched 6K air handlers at 200 sq. ft. each, plus a 36K unit for very large open living areas.
Maximum Expansion Headroom: The 55K condenser supports up to six zones, leaving two ports open for future handlers.
True DIY Installation: Patented pre-charged Quick Connect® line sets eliminate vacuuming, charging, and professional trade labor. Every line set in this kit includes the DIYPro® cable.
Smart Control: Wireless remotes, the SmartHVAC app for iOS and Android, plus Amazon Alexa and Google Assistant support out of the box.

What's Included

1 × DIY-MULTI6-55HP230D-O — 55K BTU Multi-Zone Condenser, 230V (6-zone capable)
3 × DIY-06-HP-WMAH-230D25-O — 6K BTU Wall Mount Air Handler, 230V
1 × DIY-36-HP-WMAH-230D25-O — 36K BTU Wall Mount Air Handler, 230V
3 × Pre-charged 25 ft 1/4" × 3/8" Quick Connect® line sets with DIYPro® cable (6K zones)
1 × Pre-charged 25 ft 3/8" × 5/8" Quick Connect® line set with DIYPro® cable (36K zone)
Wireless remotes, mounting hardware, and installation documentation

Condenser Specifications — DIY-MULTI6-55HP230D-O

Cooling / Heating Capacity	52,000 BTU / 55,000 BTU
Tonnage	4.6
Zone Capacity	6 (4 used in this kit)
Electrical	208–230V, 1 Phase, 60 Hz
Refrigerant	R-454B (pre-charged)
Compressor / Inverter	Rotary / DC
Max Total Line Set Length	221.4 ft

Zone Configuration

Zone	Model	Capacity & Coverage
Zone 1	DIY-06-HP-WMAH-230D25-O	6,000 BTU — up to 200 sq. ft.
Zone 2	DIY-06-HP-WMAH-230D25-O	6,000 BTU — up to 200 sq. ft.
Zone 3	DIY-06-HP-WMAH-230D25-O	6,000 BTU — up to 200 sq. ft.
Zone 4	DIY-36-HP-WMAH-230D25-O	36,000 BTU — up to 1,800 sq. ft.

Zones 1–3 use 1/4" liquid × 3/8" suction line sets. Zone 4 uses 3/8" liquid × 5/8" suction.

Engineering & Warranty

Gold Fin® Corrosion Protection against humidity and coastal salt exposure.
DC Inverter Drive scales output to match thermal load.
R-454B Refrigerant — more efficient and eco-friendly than R-410A.
Certifications: Intertek listed, UL Listed, ETL Listed, ENERGY STAR® certified, AHRI certified.
Warranty: 5-year parts and 7-year compressor coverage, eligible for the MRCOOL® Care Program.

Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Download the MRCOOL Brochure

Get the full official MRCOOL DIY 5th Generation Brochure PDF — specs, lineup, and details.

Download Brochure (PDF)

Key Information

Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On some Items In The Contiguous United States only

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Frequently Asked Questions for MRCOOL

With proper maintenance, including regular filter cleaning and annual checkups, this 54,000 BTU MRCOOL DIY 5th Gen 4-Zone system can typically last 15-20 years, backed by its 5-year parts and 7-year compressor warranty.

This kit includes three 25 ft pre-charged 1/4" x 3/8" Quick Connect line sets for the 6,000 BTU zones and one 25 ft pre-charged 3/8" x 5/8" Quick Connect line set for the 36,000 BTU zone, each with the DIYPro cable bundled in.

Yes, because the line sets arrive pre-charged with R-454B refrigerant and use Quick Connect fittings, a homeowner can complete the connection without vacuuming or charging the system, which is the core of MRCOOL's DIY design.

No, the pre-charged Quick Connect line sets are designed to eliminate the need for refrigerant gauges, a vacuum pump, or recovery equipment during installation.

The 36,000 BTU wall mount air handler is rated for up to 1,800 sq. ft., making it ideal for a very large open-concept living area.

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